FIELD OF THE INVENTION

The invention generally relates to an electric power circuit of a motor vehicle and more particularly to an electric power control system configured to provide switching AC and DC supplies to the illumination device of the motor vehicle.

BACKGROUND OF THE INVENTION

Generally, illumination devices like headlamp of vehicle are operated by AC power produced by the AC generation units such as magneto. At low RPM of engine AC generation is not sufficient and intensity of the illumination device is not constant and thus the flickering light comes out. Constant DC supply from a DC source like battery is used to solve the issue of flickering light from the illumination device i.e. headlamp.

Said system has disadvantages like higher implementation cost as the required capacity of the power generation unit i.e. magneto and the power storage unit e.g. battery is more, which requires more manufacturing cost. Further, in said DC system there are chances of high drainage of stored power which does not match the required output.

Thus there is a need of a system which can address above mentioned issues and can produce required output.

SUMMARY OF THE INVENTION

The present invention provides a motor vehicle with an electric power control system having an alternate Current (hereinafter AC) generation unit configured to generate unregulated AC, a regulator cum rectifier unit configured to regulate AC having multiple outputs and to change AC to Direct current (hereinafter DC). This system further has an energy storage device configured to receive DC input from the plurality of output of the regulator cum rectifier unit and supply DC output to a DC load cluster.

This system also has an AC load cluster which is configured to receive AC input from the plurality of output of the regulator cum rectifier unit and a control circuit configured to receive multiple input from multiple sensor assembly and to supply output to an illumination device.

Said control circuit comprises multiple comparator unit configured to receive input from the plurality of sensor assembly, a first switching assembly configured to receive input from the plurality of comparator unit and to activate a second switching assembly.

Said first switching assembly comprises a comparator and a switching unit and the second switching assembly comprises a switch activation unit configured to receive DC input from the plurality of output of the regulator cum rectifier unit and activation signal from the first switching assembly and multiple switch unit configured to switch from AC supply to DC supply to the illumination device.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will become more fully understood from the detailed description given herein below and the accompanying drawing which is incorporated in and constitute embodiments of the invention, illustrate several aspects of the invention and together with a description of the embodiments serve to explain the principles of the invention and thus, are not limited of the present invention and a brief description of the drawing is as follows:

Figure 1 is the block diagram of the embodiments of the claimed invention.

Figure 2 is an exemplary representation of the essential embodiments of the invention.

Figure 3 is an exemplary schematic representation of the enablement steps of the claimed invention.

DETAILED DESCRIPTION OF THE INVENTION

The embodiments disclosed below are not intended to be exhaustive or to limit the invention to the precise forms disclosed in the following detailed description. Rather, the embodiments are chosen and described so that others skilled in the art may utilize their teachings. The invention may have application to ail types of two wheeled vehicles. The scope of the invention is entirely based upon the claims provided.

Reference is made to Figure 1, which illustrates a block diagram of the required embodiments of the invention. Alternate current (hereinafter AC) generator (104) is producing unregulated AC as input (MM, MI-2) for the regulator cum rectifier unit (103). Said regulator cum rectifier unit (103) provides two type of output i.e. DC (03) and regulated AC (02).

Regulated AC (02) goes to the control circuit (106) as AC input (12) as well as to a cluster of AC loads (105) for direct AC input (02"). On the other hand, DC (03) output acts as the input (15) for energy storage device (102) e.g. battery as well as direct DC input (03") for the cluster of DC loads (101). Said DC (03) output also goes to the control circuit (106) as DC input (11).

Said control circuit (106) receives inputs (13, 14) from two sensor assemblies (117, 118) based upon which control circuit (106) supplies required AC or DC power (01) to the illumination device (110) e.g. head lamp. Said sensor assemblies (117, 118) have a vehicle speed sensor (111 for assembly118) or engine RPM sensor (108 for assembly 117) and a frequency to voltage convertor (107, 109) for each sensor assembly (117,118).
Mentioned vehicle speed senor (111) and the engine RPM sensor (108) measures the corresponding frequency (F2, F1) and frequency to voltage converter (109, 107) convert that frequency in related voltage which acts as inputs (14,13) for the control circuit (106).
Further, as shown in Figure 2 said control circuit (106) is comprising two comparator units (100, 115) which are receiving input from sensor assemblies (117, 118) and each comparator (100, 115) unit has its own reference voltage (R1, R2). The comparator 100 is comparing input voltage 14, coming from the sensor assembly (117) having engine RPM sensor (108), with the reference voltage (R1) provided.

In the same manner the comparator 115 is comparing input voltage 13, coming from the sensor assembly (118) having vehicle speed sensor (111), with the reference voltage (R2) provided. Based upon the outputs (G02, G01) of the comparator units (100, 115) the first switching assembly (119) gets activated and further activates the second switching unit
(114). Said first switching assembly comprises a required comparator (112) e.g. NAND gate which supplied activation signal to the switching unit (113) e.g. transistor unit and this switching unit (113) gets activated when suitable input (G03) comes from the comparator unit (112).

On activation, said switching unit (113) sends activation signal to other switch activation unit (116) e.g. a relay, which after activation changes the switches (S2 to S1 respectively) from AC supply to DC supply or vice versa (as required) such that the second switching assembly (114) sends continuous power output (01) to illumination device (110) e.g. head lamp.

Said control circuits (106) works on the basis of the outputs (G02, G01) of the comparator circuits (100,115). The claimed system works in specific steps as shown in figure 3. As shown during starting the vehicle ignition starts and hence engine starts working and the comparator (100) receives sensed engine RPM (F2) in the form of voltage (14) and compares it with the provided reference voltage (R1).

If said reference voltage (R1) is greater than the sensed RPM (F2/I4) then the control circuit (106) does not change AC supply (S2) to the DC supply (S1) and if the Engine RPM (F1/I4) is greater than the reference voltage (R1) then the role of other comparator (115) comes into picture. If received voltage (13) i.e. the vehicle speed (F1) sensed by other sensor assembly (118) is more than the respective reference voltage (R2), first switching assembly (119) gets activated and activates the switch activation unit (116) of the second switching assembly (114) which further changes the switches (S1, S2) in order to change AC supply (S2 path) to DC supply (S1 path) for the illumination device (110) so that even at lower RPM of the engine, illumination device (110) such as headlamp provides light with continuous intensity.

WHAT IS CLAIMED IS

1) A motor vehicle with an electric power control system comprising an alternate current (hereinafter AC) generation unit configured to generate unregulated AC, a regulator cum rectifier unit configured to regulate AC and to change AC to direct current (hereinafter DC) and having atleast one output port, an energy storage device configured to receive DC input from output port of the regulator cum rectifier unit and supply DC output to a DC load cluster, an AC load cluster configured to receive AC input from the output port of the regulator cum rectifier unit and a control circuit configured to receive atleast one input from atleast one sensor assembly and to supply output to an illumination device on predetermined conditions.

2) The motor vehicle, as claimed in claim 1, wherein, the control circuit is comprising a plurality of comparator unit configured to receive input from the plurality of sensor assembly, a first switching assembly configured to receive input from the plurality of comparator unit and to activate a second switching assembly.

3) The motor vehicle, as claimed in claim 2, wherein, the first switching assembly comprises a comparator and a switching unit.

4) The motor vehicle, as claimed in claim 2, wherein, the second switching assembly comprises a switch activation unit configured to receive DC input from the output port of the regulator cum rectifier unit and activation signal from the first switching assembly and a plurality of switch unit configured to switch from AC supply to DC supply to the illumination device.

5) The motor vehicle, as claimed in claim 1, wherein, the predetermined conditions are functions of the output of the sensor assembly.