1This application claims the benefit of priority based on the June 27 issue of Korea Patent Application No. 10-2017-0081172 2017, and all information disclosed in the literature of the Korea patent application are included as part of the specification.
[2]The invention isolated relates to a resistance calculation system and method, more specifically, on the basis of the battery voltage to be applied to connecting a resistor and a battery to connect the battery positive terminal and chassis cathode terminal and the sash resistance positive electrode of the battery It relates to an insulation resistance calculation system and method for calculating the insulation between terminals, and the negative electrode terminal and the sash resistance.
[3]
BACKGROUND
[4]
In general, the secondary battery may be used in electric vehicles and energy storage systems, and uninterruptible power supply, a battery module in environments that require high capacity, by a plurality of bonding the unit secondary battery cell (Cell), such as, for depending on may be used in a plurality of joining a battery module.
[5]
When by bonding a plurality of battery modules by the high-voltage battery, the insulation must maintain a certain level of resistance in order to prevent the user from taking place unwanted discharge of preventing an electric shock, and battery. For example, if the high voltage battery bonding a plurality of the battery modules that is used is applied to the vehicle, between the chassis (Chassis) of the battery anode and the vehicle, and measures the insulation resistance between the chassis of the battery terminal with the vehicle, the insulation resistance It should be maintained so that it does not fall below a certain level.
[6]
A conventional battery management system; method of measuring the positive and negative electrodes and the insulating resistance between the chassis of the battery in (Battery Management System BMS) is characterized in that the measurement resistance BMS based on the sash coupled to the battery positive and negative electrodes, and the switching control an insulation resistance was calculated by changing the connection of the measurement resistance BMS sequentially through.
[7]
On the other hand, a method to calculate a conventional insulation resistance is a problem that it can be applied only to BMS using a voltage based on the sash, a battery disconnect unit; the case of non-connection device and the chassis, such as (Battery Disconnecting Unit BDU) Insulation Resistance there is a problem that can be calculated.
[8]
Thus for the present inventors to solve the problems the conventional method of calculating the insulation resistance with, rather than in terms of chassis, based on the terminal-side voltage of battery, the insulation between the battery positive terminal and chassis resistance and the battery negative terminal and insulation between sash that can be used to calculate the insulation resistance calculated resistance came to develop a system and method.
[9]
Detailed Description of the Invention
SUMMARY
[10]
Present as invention is derived to resolve the above problems, the present invention is based on the terminal-side voltage of battery terminal, according to the first to third resistance portion conductive state is connected between the battery positive terminal and the negative electrode terminal and the chassis by calculating the insulation resistance using the voltage of the battery to be measured, to provide an insulation resistance calculation system and method for calculation of the inter-isolation between the battery positive terminal and chassis resistance and the battery negative terminal and a sash insulation resistance.
[11]
Problem solving means
[12]
Calculated insulation resistance according to one embodiment of the present invention system, the first resistance portion that connects the positive terminal and the chassis (Chassis) of the battery, the second resistance portion that connects the negative terminal of the battery and the sash, in the battery a negative electrode terminal and connects to the sash, the first may be a third resistance portion and a control part for controlling the first conductive state portion 1-3 resistors parallel connected to the second resistance portion, the control portion, a negative electrode of the battery terminal side voltage on the basis of the first to third negative terminals of the insulation resistance and the battery between in accordance with the resistance portion conductive state and the second resistance portion by using the voltage of the battery is applied to the positive terminal of the battery wherein the chassis and it can be used to calculate the insulation resistance between the sash.
[13]
In one embodiment, the insulation resistance calculation system, storing the voltage of said first to third A in accordance with the resistance portion conductive state the first part the second voltage measurement to measure the voltage of the battery is applied to the resistor portion and measuring the battery storage may further include a a.
[14]
In one embodiment, the voltage measuring unit, the voltage of the battery, the first and second to the conductive state the resistance portion on state one when the second resistance portion in the voltage and the first through third resistance of the battery is applied when the conductive state in the oN state of the second can be measured in sequence a voltage of the battery is applied to the resistor portion, wherein the control unit may control the voltage to be measured with measurement unit a predetermined time interval.
[15]
In one embodiment, the voltage measurement unit, wherein 1 to 3 can measure the voltage of the battery regardless of the resistance portion conductive state, and the control unit, the average of the battery based on the voltage of the measured battery voltage a can be calculated, and calculating the insulation resistance between the negative terminal of the battery and the insulation resistance between the positive electrode of the battery by using the average of the voltage output terminal and the sash and the sash.
[16]
In one embodiment, the controller may calculate the insulation resistance between the positive terminal of the battery wherein the sash on the basis of Equation 1 below.
[17]

[18]
[19]
Here, R n is the battery positive terminal isolation between and the sash resistance, R E is the second resistance unit resistance value, R F is the third resistance unit resistance value, V is the voltage value of the battery, V GEF is the first through third resistance-add-on state, when the first voltage value is applied to the resistor portion 2 and V GE is the first and second resistance state, when the add-on voltage is applied to the second resistance portion
[20]
In one embodiment, the controller may calculate the insulation resistance between the battery and the negative terminal of the sash on the basis of equation (2) below.
[21]

[22]
[23]
Here, R P is the insulation between the negative terminal of the battery and the sash resistance, R G is the first resistance unit resistance value, R F is the third resistance unit resistance value, V is the voltage value of the battery, V GEF is the first through third resistance-add-on state, when the first voltage value is applied to the resistor portion 2 and V GE is the first and second resistance state, when the add-on voltage is applied to the second resistance portion
[24]
In one embodiment, the claim may contain 1 to 3 resistor section, at least one resistor and a switching unit respectively, the one or more resistors, a battery management system for managing the battery; can be mounted within (Battery Management System BMS) have.
[25]
[26]
Insulation resistance calculation method according to an embodiment of the present invention, the first resistance portion that connects the chassis (Chassis) of the battery positive terminal and the vehicle unit a second resistor connecting the negative terminal of the battery and the sash and the a second step of controlling a third resistance portion rendered conductive in parallel connection with the resistor portion, the second insulating between the step of measuring the voltage of the battery is applied to the resistor portion and with the sash positive terminal of the battery resistance and the battery a may include a negative terminal comprising the steps of calculating the insulation resistance between the sash comprising the steps of the calculation is based on the terminal-side voltage negative electrode of the battery, the second according to the first through third resistance portion conductive state between the positive terminal of the battery by using the voltage of the battery is applied to the resistor portion and the negative terminal of the battery and the insulation resistance between the chassis the chassis It may comprise the steps of calculating the insulation resistance.
[27]
In one embodiment, the step of the measurement, according to the first through third resistance portion conductive state may comprise the step of measuring a voltage of the battery is applied to the second resistance portion, the insulation resistance calculation method It may further include the step of storing the voltage of the battery measured.
[28]
In one embodiment, the step of the measurement, the voltage measurement unit voltage of the battery, the first and second resistance portion conductive state the ON state, when the first voltage of the battery is applied to the second resistance part and the first to the can 3 including the step of resistance conduction state is determined in sequence to the first voltage of the battery is applied to the second resistance portion when the on-state portion further comprising the steps of the calculation, the voltage measurement unit period of time set a step of controlling so as to measure an interval may be further included.
[29]
In one embodiment, the step of the measurement, can comprise the step of measuring a voltage of the battery regardless of the first through third resistance portion conductive state, wherein the output is, the voltage of the measured battery based on calculating the average voltage of the battery, and the insulation between the positive electrode of the battery by using the above mean voltage output terminal and the sash resistance and further comprising the step of calculating the insulation resistance between the negative terminal of the battery wherein the chassis can.
[30]
In one embodiment, the step of calculating may calculate the insulation resistance between the positive terminal of the battery wherein the sash on the basis of Equation 1 below.
[31]

[32]
[33]
Here, R n is the battery positive terminal isolation between and the sash resistance, R E is the second resistance unit resistance value, R F is the third resistance unit resistance value, V is the voltage value of the battery, V GEF is the first through third resistance-add-on state, when the first voltage value is applied to the resistor portion 2 and V GE is the first and second resistance state, when the add-on voltage is applied to the second resistance portion
[34]
In one embodiment, the step of calculating may calculate the insulation resistance between the battery and the negative terminal of the sash on the basis of equation (2) below.
[35]

[36]
[37]
Here, R P is the insulation between the negative terminal of the battery and the sash resistance, R G is the first resistance unit resistance value, R F is the third resistance unit resistance value, V is the voltage value of the battery, V GEF is the first through third resistance-add-on state, when the first voltage value is applied to the resistor portion 2 and V GE is the first and second resistance state, when the add-on voltage is applied to the second resistance portion
[38]
In one embodiment, the claim may contain 1 to 3 resistor section, at least one resistor and a switching unit respectively, the one or more resistors, a battery management system for managing the battery; can be mounted within (Battery Management System BMS) have.
[39]
Effects of the Invention
[40]
The present invention calculates the insulation resistance using the voltage of the battery to be measured in accordance with the first through third resistance rendered conductive member which is based on the terminal-side voltage of battery, connected between the battery positive terminal and the negative electrode terminal and the sash, of insulation between the battery positive terminal and chassis resistance and the battery negative terminal and the chassis it can be used to calculate the insulation resistance between the.
[41]
The invention also has the advantage that, by using a resistance mounted in the BMS that manage the battery output to the insulation resistance, the product that is not connected to the sash can also calculate the insulation resistance between the battery.
[42]
The invention also has the advantage that by terminal side on the basis of the voltage of battery, it is possible to calculate the insulation resistance of the other BMS products connected to the negative terminal of the battery side.
[43]
Brief Description of the Drawings
[44]
1 is a block diagram illustrating the components of the insulation resistance computing system 100 in accordance with one embodiment of the present invention.
[45]
Figure 2 is a diagram illustrating a case in which the conductive state of the first and second resistive portions 110 and 120 in the on state in the insulation resistance computing system 100 in accordance with one embodiment of the present invention.
[46]
3 is a first through third resistance section view schematically showing a case in which the conductive state (110 to 130) in the on state in the insulation resistance computing system 100 in accordance with one embodiment of the present invention.
[47]
4 is a flow chart for explaining a series of processes to use to calculate the insulation between the battery positive terminal and the negative electrode terminal and the sash resistance and insulation resistance computing system 100 in accordance with one embodiment of the present invention.
[48]
Mode for the Invention
[49]
Or less, it presents a preferred embodiment for better understanding of the present invention. However, the following examples are not limited to the context of the present invention by the intended addition, the examples provided in order to more readily understand the invention.
[50]
[51]
1 is a diagram schematically illustrating the components of the insulation resistance computing system 100 in accordance with one embodiment of the present invention, Figure 2 is a first insulation resistance computing system 100 in accordance with one embodiment of the present invention and 2, and the resistor portion a view showing schematically the case of the conductive state in an on state (110 and 120), Figure 3 is the first through third resistance portion in the insulation resistance computing system 100 in accordance with one embodiment of the present invention a diagram illustrating a case where the state to the conductive state (110 to 130) on.
[52]
Figure 1 Referring to to 3, the insulation resistance computing system 100 in accordance with one embodiment of the present invention, the first resistor 110, second resistor 120, third resistor 130, a voltage measurement section 140, may be configured to include a storage unit 150 and the controller 160.
[53]
The insulation resistance calculation system 100 shown in Figure 1 to 3 will in accordance with one embodiment, the components are not limited to the embodiment shown in Figure 1 to 3, and replaced as necessary, added, changed, or It may be deleted. For example, the system 100 includes the insulation resistance calculated in accordance with an embodiment of the present invention is not provided with a separate storage unit 150, the voltage of the battery 10 measured by the voltage measurement section 140, the control unit ( passes to 160) can be used to calculate the insulation resistance. Also, without a voltage measurement unit 140, the voltage of the battery 10 to be applied to the second resistance unit 120 is transmitted to the controller 160, the sub reservoir the voltage of the transmitted battery 10 ( that was stored in 150) may be configured to use the data stored in the storage unit 150 to calculate a future insulation resistance.
[54]
[55]
First, a first resistance unit 110 can be connected to the chassis (Chassis, 20) of the vehicle and the positive terminal of the battery 10, the second resistance unit 120 and the negative terminal of battery 10, a sash (20 ) it can be connected to the third resistor 130 is connected to the negative terminal and the chassis 20 of the battery and can be connected in parallel with the second resistance portion 120.
[56]
Here, the chassis 20 refers to the chassis forming a base of the vehicle, and may be of the non-equipped vehicle body structure of a vehicle on the vehicle state. In addition, the sash 20 may be a variety of components, engine, gearbox, clutch, etc. bonded to the base skeleton frame type. First through third resistance unit (110 to 130) in the insulation resistance computing system 100 in accordance with one embodiment of the present invention may be configured to be connected to the chassis 20 of the vehicle, not limited to this, other non-vehicle It may be configured to be applied to products and devices connected to other products and equipment.
[57]
First through third resistance unit (110 to 130) may change the conductive state control receives from the control unit 160 will be described later. First through third resistance unit (110 to 130) for this purpose may include each of one or more resistors and switching unit.
[58]
Here, the conductive state of the first to third resistance unit (110 to 130) is the positive terminal and the negative terminal of the on-state and the battery (10) connecting the connection between the positive terminal and the negative electrode terminal and the chassis 20 of the battery 10 and it may be turned off for short-circuiting a connection between the sash (20).
[59]
Here, one or more resistors may be considered a producer or user experience of the insulation resistance computing system 100 in accordance with one embodiment of the present invention to determine the number and size of the resistor. For example, the first through third resistance portion can comprise a single resistance (110 to 130), the size of one of the resistors comprising each may all be the same.
[60]
In one embodiment, when the insulation resistance computing system 100 in accordance with one embodiment of the present invention is applied to a vehicle that uses a high-voltage battery, the first through third resistance unit (110 to 130) monitors a battery (10) It may be of a type that is mounted in; (BMS battery management system) for managing and BMS. It does not claim the need for a separate space to be provided with the first to third resistance unit (110 to 130) can be increased through the utilization of space. Moreover, by being connected to the first through third resistance unit (110 to 130) mounted in the product is also not connected with the sash (20) BMS, there is an advantage that a battery 10 and can be used to calculate the insulation resistance between the products.
[61]
[62]
A voltage measurement unit 140 may measure the voltage applied to the second resistance unit 120 according to the conduction state of the first through third resistance unit (110 to 130).
[63]
Voltage of the voltage measurement section 140 has the battery 10 voltage, the first and second resistance sub-battery 10 is applied to the second resistor 120 when the conductive state is the ON state in 110 and 120 of and the first through third resistance unit based on the order predetermined for the voltage of the battery 10 to be applied to the second resistor 120 when the conductive state is an on state (110 to 130) can be measured by sequentially .
[64]
Here, the preset order of the voltage of the battery 10 to be applied to the voltage, the first and second resistance sub-second resistor 120 when the conductive state is the ON state in 110 and 120 of the battery 10 and the first through third resistance portion first through third resistance unit (110 to 130 to measure the voltage of the battery 10 to be applied to the second resistor 120 when the conductive state is an on state (110 to 130) ) may be in order to control the conduction state of the. For example, the predetermined order is applied to the step, the first and second resistance sub-second resistor 120 to change the conductive state to the ON state, and the 110 and 120 to measure the voltage of the battery (10) be a step of measuring the voltage of the battery 10 to be applied to the step and the third change the conductive state of resistance unit 130 in the on state and the second resistance unit 120 which measures the voltage of the battery 10, and a voltage measurement unit 140 may measure the voltage on the basis of a predetermined order.
[65]
Voltage measurement section 140 of the first to third resistance portion 2, but the measurement of the voltage that is applied to resistor 120, the first through third resistance unit (110 to 130) according to the conduction state (110 to 130) whenever a conductive state is changed, the group with the fixed time can be determined.
[66]
Here, the predetermined time interval by the producer or user of the insulation resistance computing system 100 in accordance with one embodiment of the present invention larger set based on the size of the Passage capacitance size and the first to third resistance unit (110 to 130) time may be a value. For example, when the size and the large size of the Passage capacitance of the resistor is large, when it is abruptly the resistance voltage is applied (the switch case to be applied is changed in the on-state voltage), without full voltage to the resistance is not applied to low the voltage can be applied, and shows a tendency to over time applied with increasing voltage according to reach the voltage of the original size can be applied. In other words, a certain amount of time may be needed to measure the size of the voltage to be applied to the original.
[67]
Thus, the voltage measurement section 140 group when setting the predetermined time interval of claim is a 2 by measuring the voltage applied to the resistor 120, the voltage of the size to be applied originally on the second resistance unit 120, the applied voltage to be measured and, through it, it is possible to prevent the error in the measured value occurred.
[68]
In one embodiment, the voltage measurement unit 140 may measure the voltage of the battery 10, regardless of the conductive state of the first to third resistance unit (110 to 130), via the control unit 160 will be described below, and calculating the average voltage of the voltage of the battery 10 measured by the voltage measuring unit 140 can be used to calculate the insulation resistance.
[69]
[70]
Storage unit 150 may store the voltage of the battery 10 measured by the voltage measurer 140. The In addition, the storage unit 150 may store the insulation resistance is calculated through the control unit 160 will be described later. For example, the storage unit 150 includes a voltage measurement section 140, a database (Database; DB) storing the ingestion of the insulation resistance calculated from the voltage, the controller 160 of the measured battery 10 in may be.
[71]
Here, the storage unit 150 are present as the expression for calculating a second voltage, the calculated insulation resistance and the insulation resistance of the voltage, a battery 10 to be applied to the resistor portion 120, measured from the voltage measurement section 140, to store all of the elements to be measured and calculated from the insulation resistance computing system 100 in accordance with one embodiment of the invention is preferred.
[72]
[73]
The controller 160 may control the conductive state of the first to third resistance unit (110 to 130). For example, the controller 160 includes first to third resistance unit may output a control signal for controlling the on-off operation of the switching portion comprising each of the (110 to 130), the first through third resistance unit (110 to 130 ) may be a conductive state by performing on-off operation based on the switching unit receives a control signal included in each change.
[74]
Voltage of the control unit 160 the battery 10 to be applied to the second resistance unit 120 according to the conduction state of, based on the terminal side of the voltage of battery 10, the first through third resistance unit (110 to 130) to be used in calculating the insulation resistance between the cathode terminal and the chassis 20 of the insulation resistance and the battery 10 between the positive terminal and the chassis 20 of the battery 10. Hereinafter will be described about the process of calculating the insulation resistance between the equation (1) based on a to 10 battery 10 positive electrode terminal and the chassis 20, the insulation resistance and the battery 10, the negative electrode terminal and the chassis 20 in between the.
[75]
[76]
First, the controller 160 may calculate the insulation resistance between the positive terminal and the chassis 20 of the battery 10 on the basis of Equation 1 below.
[77]

[78]
[79]
Here, R n is the battery 10, the positive electrode terminal and the chassis 20, the insulation resistance, R between the E of the second resistance of the resistor unit (120), R F resistance value of the third resistance unit (130), V is a voltage value, V of the battery (10) GEF has first to third when the resistance unit (110 to 130) the on-state voltage is applied to the second resistance unit 120 and the V GE is the first and second resistance when the unit 110 and 120 turned on, the voltage value applied to the second resistance portion 120.
[80]
[81]
For more specific look at, and the first resistance unit 110 and the second resistance unit 120, the ON state as shown in Figure 2, the third resistance unit 130 is turned off, the second resistance portion ( voltage applied to 120) can be calculated by using equation 3 below.
[82]

[83]
[84]
Wherein, R G is the resistance of the first resistance unit 110.
[85]
[86]
Further, the first through third resistance unit (110 to 130) as shown in FIG. 3, the case where the on state, the voltage applied to the second resistance unit 120 can be calculated by using Equation 4 below have.
[87]

[88]
[89]
Here, (R according to Equation 3 and 4 n // R E substituting) in X and, (R P // R G is substituted by) a Y, and, when it is substituted the substituted X and Y in equation (3) , the equation (5) can be derived below.
[90]

[91]
[92]
[93]
Further, when it is substituted the substituted X and Y in equation (4), the equation (6) can be derived below.
[94]

[95]
[96]
[97]
At this time, if each Y compiled based on the equation (5) and 6, (7) and (8) below can be derived, respectively.
[98]

[99]
[100]

[101]
[102]
[103]
When combined the (7) and (8) obtained in the above-described method, and the equation (9) below by being a substituted Y erasure may be derived, the equation (10) below summarized by the equation (9) relative to the X It can be derived.
[104]

[105]
[106]

[107]
[108]
[109]
Here, the equation for the erased and X, combined by combining Equation 3 and Equation 10 R n In summary, based on the, there is the above-described equation (1) can be derived.
[110]
That is, the control unit 160 when the conductive state is the ON state of the voltage (V), 1 and the second resistance unit 110 and 120 of the battery 10 to be measured from the voltage measurement section 140, the second resistance portion ( voltage (V of the battery is applied to 120) GE voltage) and the first to third resistance unit (battery 10 to be applied to the second resistor 120 when the conductive state is the oN state of 110 to 130, V GEF ) by substituting the equation (1) above the, can be used to calculate the insulation between the positive electrode terminal and the chassis 20 of the battery 10, a resistance.
[111]
In one embodiment, the control voltage of the battery 10, the insulation resistance computing system 100 in accordance with one embodiment of the present invention is not provided with a voltage measuring unit 140, it is applied to the second resistance unit 120 when delivered directly to 160, the voltage of the battery 10 is contained in the above-mentioned equations (1) through 10 (V) is the partial pressure ratio (D) predetermined on the actual battery 10, the voltage magnitude (C) of the product It may be a value made. For example, the controller 160 is a micro controller unit included in the BMS; if if (Micro Controller Unit MCU), the voltage (C) of an actual battery are both applied to the MCU, a malfunction in excess of the allowable voltage range of the MCU this can take place. Thus, the value obtained by multiplying the second resistance unit 120, the partial pressure ratio (D) predetermined on the size of the voltage (C) of an actual battery in order to adjust to a value within the allowable range of the voltage of the battery 10 in the MCU is applied to the can.
[112]
Here, a predetermined partial pressure ratio (D) may be a voltage (C) value of the partial pressure ratio depending on the type and performance of the MCU which can be the ratio which is distributed by the voltage distribution, the use of the battery 10 is set have.
[113]
[114]
Next, the controller 160 may calculate the insulation resistance between the cathode terminal and the chassis 20 of the battery 10 on the basis of equation (2) below.
[115]

[116]
[117]
Here, R P is the insulation resistance between the cathode terminal and the chassis 20 of the battery 10.
[118]
[119]
The insulation resistance (R between the negative electrode terminal and the chassis 20 of the battery (10) P Equation (2) can be calculated) is the X and Y of the equation (3) to 10 described above in conjunction with Equation (4), 7 and 10 an erased, and combining equation R P can be derived by the theorem on the basis.
[120]
That is, the controller 160 is a voltage (V), 1 and the second resistance portion the second resistor 120 when the conductive state is the ON state in 110 and 120 of the battery 10 to be measured from the voltage measurement section applied voltage (V battery that is GE voltage of the battery 10 to be applied to), and the first to third second resistor 120 when the conductive state is the oN state of the resistance unit (110 to 130) (V GEF ) a by substituting the equation (2) above, it is possible to calculate the insulation between the negative terminal and the chassis 20 of the battery 10, a resistance. With reference to Fig. 4, by using an insulation resistance computing system 100 in accordance with one embodiment of the present invention will be described the method of calculating the insulation resistance.
[121]
[122]
4 is a flow chart for explaining a series of processes to use to calculate the insulation between the battery positive terminal and the negative electrode terminal and the sash resistance and insulation resistance computing system 100 in accordance with one embodiment of the present invention.
[123]
4, the first, start the measurement of the battery voltage from 1 to 3 additional resistance the OFF state (S110). After step S110 to change the first resistance and the second resistance portion in the conductive state and the on state (S120), the measured voltage applied to the resistor portion 2 (S130). Next, change the third resistance portion in a conductive state and an on state (S140), the second measurement of the voltage that is applied to the resistor portion (S150). In addition, to calculate the average voltage of the battery based on the voltage of the battery measured in the step S110 (S160).
[124]
S130, S150, and when in the S160 step is measured and the calculated first and second resistance portion conduction state, on-state voltage of the battery is applied first to the second resistance portion, when the first to state that three resistive parts of the conductive state on first it calculates the insulation resistance between the positive electrode 2 of the resistance portion is based on the average voltage of the battery voltage and the battery that the battery terminals and the negative electrode terminal and the chassis. It is changed after step S170 in the three-state resistance portion conductive off state (S180).
[125]
Here, it is possible to group the steps S110 and S120, S130 and step S140, S150 to S180 and step S110 and steps S130, S140 and S170, each step may perform the steps included in the group at the same time. For example, the S130, S140, and the case of performing a group including steps S170, S130, S140 and S170 step can be performed simultaneously.
[126]
In the case of another embodiment, performing the group including S130, S140 and S170 step, based on the order registered in the group may perform the steps in sequence.
[127]
Furthermore, by re-perform the S110 step after performing the S180 step from Step S110, and repeatedly performed only groups including the group, and S150 to S180 step and S110 step comprises the step S130, S140, and S170 thereafter , it does not perform unnecessary duplication step it is possible to shorten the time.
[128]
[129]
Method for calculating the above-mentioned insulation resistance has been described with a flow chart shown in the figure by reference. The method to simplify explanation been illustrated and described as a series of blocks, the invention is not limited to the order of the blocks, some blocks are illustrated and described herein with other blocks as those in a different order or at the same time take place and also, various other branches, flow paths of the order, and a block to achieve the same or similar results may be implemented. In addition, all the blocks shown to the implementation of the methods described herein are may not be required.
[130]
[131]
Wherein in a preferred embodiment it has been with reference to describe, to vary the invention within the scope not departing from the spirit and scope of the invention as set forth in the claims below are those skilled in the art modifications and variations of the present invention it will be appreciated that it can be.

Claims

[Claim 1]A first resistance portion that connects the positive terminal and the chassis (Chassis) of a battery; A second resistor section connected to the negative terminal of the battery and the sash; A third resistance portion that connects the negative terminal of the battery and the sash, a parallel connection to the second resistance portion; And the first through third resistance portion conduction control unit for controlling the condition; includes, wherein the control unit, based on the terminal-side voltage negative electrode of the battery, the first to third resistors of said first according to the conduction state second resistance portion the insulation between the positive terminal of the battery by using the voltage of the battery is applied with the sash and the resistance, the insulation resistance calculation system, characterized in that for calculating the insulation resistance between the battery and the negative terminal of the sash.
[Claim 2]
The method of claim 1, wherein the insulation resistance calculation system, the voltage measuring unit in accordance with the first through third resistance portion conductive state measuring the voltage of the battery is applied to the second resistance portion; , Insulation resistance calculation system for a characterized in that it further comprises; and a storage unit for storing the voltage of the battery measured.
[Claim 3]
Claim 2, wherein the voltage measurement unit, a voltage of the battery, the first and second voltages and the of the battery applied to the second resistance portion when the conductive state the resistance portion on state of the first to third in when the conduction state resistance portion on state and the second measures the voltage of the battery is applied to the resistor portion in sequence, the control unit, characterized in that control to measure with the voltage measurement unit a predetermined time interval, insulation resistance calculation system.
[Claim 4]
The method of claim 2, wherein the voltage measurement unit, wherein the wherein the first to third resistance measuring voltage of the battery regardless of the conductive state portion, wherein, the average voltage of the battery based on the voltage of the measured battery calculating, and insulation resistance calculation system, characterized in that for calculating the insulation resistance between the insulation resistance and the sash and between the negative terminal of the battery by using the above calculated average voltage and the positive terminal of said battery chassis.
[Claim 5]
The method of claim 1, wherein, to the equation based on the insulation resistance calculation system, characterized in that for calculating the insulation resistance between the positive terminal of the battery 1, the sash. where, R n is the battery positive terminal isolation between and the sash resistance, R E is the second resistance unit resistance value, R F is the third resistance unit resistance value, V is the voltage of said battery value, V GEF has the first through third resistance-adding-on state, when the second voltage value, and V is applied to the resistor portion GE is applied to the second resistance portion when the first and second resistance portion on state voltage
[Claim 6]
The method of claim 1, wherein, to the equation (2), insulation resistance calculation system for, on the basis characterized in that for calculating the insulation resistance between the negative terminal of the battery on the chassis. wherein, R P is the insulation between the negative terminal of the battery and the sash resistance, R G is the first resistance unit resistance value, R F is the third resistance unit resistance value, V is the voltage of said battery value, V GEF has the first through third resistance-adding-on state, when the second voltage value, and V is applied to the resistor portion GE is applied to the second resistance portion when the first and second resistance portion on state voltage
[Claim 7]
According to claim 1, wherein said first to third resistor section, each containing at least one resistor and a switching unit, and the one or more resistors, a battery management system for managing the battery; characterized in that mounted in the (Battery Management System BMS) , insulation resistance calculation system as set.
[Claim 8]
The first resistance part, the second resistance part and the third conductive resistance negative state in which a parallel connection to the second resistance portion that connects the negative electrode terminal and the chassis of the battery to connect the battery positive terminal and the vehicle chassis (Chassis) step of controlling; Measuring a voltage of the battery is applied to the second resistance portion; And a step of calculating the insulation resistance between the cathode terminal and the chassis of the insulation resistance and the battery between the positive terminal of the battery wherein the sash; the method comprising: including a, the calculation is based on the terminal-side voltage negative electrode of the battery, according to the first through third resistance portion conductive state the insulation resistance between the cathode terminal and the chassis of the insulation resistance and the battery between the second resistance portion by using the voltage of the battery is applied to the positive terminal of the battery wherein the chassis calculating; comprising the, method of calculating the insulation resistance.
[Claim 9]
9. The method of claim 8, wherein the measurement is, the first to third according to the resistance portion conductive state measuring a voltage of the battery is applied to the second resistance portion; wherein a, the insulation resistance calculation method , storing the measured voltage of the said battery; method of calculating the insulation resistance, further comprising the.
[Claim 10]
10. The method of claim 9, wherein said measurement is a voltage measurement unit voltage of the battery, the first and second voltage and the second of when the conductive state the resistance portion on state of the battery is applied to the second resistance portion 1 to when the first condition is three resistive parts of the conductive state on the second measuring sequentially the voltage of the battery is applied to the resistor portion; further comprising a, step of the calculation, the voltage measurement unit period of time set calculating the insulation resistance that it further comprises a, characterized in,; step for controlling to measure an interval.
[Claim 11]
9. The method of claim 8, wherein said measuring comprises: measuring a voltage of the battery regardless of the first through third resistance portion conductive state; includes the step of the calculation is, the voltage of the measured battery including more; based on the step of calculating the average voltage of the battery, and calculating the insulation resistance between the negative terminal of the insulation resistance and the battery between the positive electrode of the battery by using the above mean voltage output terminal and the sash and the sash , method of calculating the insulation resistance characterized in that.
[Claim 12]
In the step of calculation, the equation method based on the first calculation, the insulation resistance, characterized in that for calculating the insulation resistance between the positive terminal of the battery of the sash to the claim 8. where, R n is the battery positive terminal isolation between and the sash resistance, R E is the second resistance unit resistance value, R F is the third resistance unit resistance value, V is the voltage of said battery value, V GEF has the first through third resistance-adding-on state, when the second voltage value, and V is applied to the resistor portion GE is applied to the second resistance portion when the first and second resistance portion on state voltage
[Claim 13]
In the step of calculation, the equation 2 based on the calculation method, the insulation resistance, characterized in that for calculating the insulation resistance between the negative terminal of the battery of the sash to the eighth. wherein, R P is the insulation between the negative terminal of the battery and the sash resistance, R G is the first resistance unit resistance value, R F is the third resistance unit resistance value, V is the voltage of said battery value, V GEF has the first through third resistance-adding-on state, when the second voltage value, and V is applied to the resistor portion GE is applied to the second resistance portion when the first and second resistance portion on state voltage
[Claim 14]
According to claim 1, wherein said first to third resistor section, each containing at least one resistor and a switching unit, and the one or more resistors, a battery management system for managing the battery; characterized in that mounted in the (Battery Management System BMS) how to calculate the insulation resistance of.