Claims:We claim:
1. A vehicle with air conditioning and blower system, the system comprising:
a voltage energizer (KAC) disposed between an alternator (ALT) and an N/O switch (KA), wherein through the N/O switch (KA), an air conditioner (E) and a blower (Ev)are connected, 5
wherein the voltage energizer (KAC) is energized on engine cranking, and the energizing of the energizer (KAC) closes the N/O switch (KA) to close an electric circuit for the air conditioner (E) and the blower (Ev).
2. The vehicle with air conditioning and blower system as claimed in claim 1, 10 wherein a fuse (FA) is disposed in a connection line between the alternator (ALT) and the voltage energizer (KAC).
3. The vehicle with air conditioning and blower system as claimed in claim 2, wherein the fuse (FA) is a 5-ampere fuse.
4. The vehicle with air conditioning and blower system as claimed in claim 1, 15 wherein the voltage energizer (KAC) includes a relay coil which takes the predetermined time to energize the voltage energizer (KAC).
5. The vehicle air conditioning system as claimed in claim 4, wherein when the relay coil is fully energized, the voltage energizer (KAC) outputs a voltage to the air conditioner (E) and the blower (Ev). , Description:VEHICLE WITH AIR CONDITIONING AND BLOWER SYSTEM
TECHNICAL FIELD
[0001] The present disclosure, in general, relates to an electrical control system of a vehicle, and, more particularly, to a vehicle with air conditioning and blower system. 5
BACKGROUND
[0002] Background description includes information that may be useful in understanding the present disclosure. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed subject matter, or that any publication specifically or implicitly referenced is prior art. 10
[0003] There are increasing demands on the electrical systems of vehicles, such as multiple power sources, loads with differing priorities and criticalities, and differing voltage requirements. The increased complexity of such electrical systems requires a power management system to achieve optimization of power flow and management of energy storage to allow efficient use of power to service various 15 loads while preserving energy for high-priority functions, such as the ability to start the engine such as a diesel engine, a petrol engine, a gaseous fuel-powered engine, or any other type of engine.
[0004] However, when an air conditioner of a vehicle is not turned-off before the engine is stopped, a vehicle battery has to supply a high-voltage supply for 20 cranking the engine. This is because when the air conditioner is not turned-off before stopping the engine, air conditioner belt is left engaged with engine crankshaft and thus the engine needs more power to crank.
[0005] Additionally, the blower of the air conditioner starts running even before the engine is cranked, when the air conditioner is not turned-off before stopping the 25 engine. This in turn leads to another source of voltage drainage from the vehicle battery at the time of engine cranking.
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[0006] Therefore, there is a need in the state of the art for providing an improved electrical control system of an air conditioning system of a vehicle.
OBJECTS OF THE DISCLOSURE
[0007] Some of the objects of the present disclosure, which at least one embodiment herein satisfy, are listed hereinbelow. 5
[0008] It is a general object of the present disclosure to provide an air conditioning system of a vehicle with an improved electrical control system.
[0009] It is another object of the present disclosure to provide an electrical control system which can delay a short period of time to provide a voltage supply for an air conditioner of vehicle from a vehicle battery while the engine is cranked. 10
[0010] These and other objects and advantages of the present invention will be apparent to those skilled in the art after a consideration of the following detailed description taken in conjunction with the accompanying drawings in which a preferred form of the present invention is illustrated.
SUMMARY 15
[0011] This summary is provided to introduce concepts related to an air conditioning system of a vehicle. The concepts are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter. 20
[0012] The present disclosure relates to a vehicle with air conditioning and blower system. The system includes a voltage energizer disposed between an alternator and an N/O switch, wherein through the N/O switch, an air conditioner and a blower are connected, and wherein the voltage energizer is energized on engine cranking, and the energizing of the energizer closes the N/O switch to close 25 an electric circuit for the air conditioner and the blower.
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[0013] In an aspect, a fuse is disposed in a connection line between the alternator and the voltage energizer.
[0014] In an aspect, the fuse (FA) is a 5-ampere fuse.
[0015] In an aspect, the voltage energizer includes a relay coil which takes the predetermined time to energize the voltage energizer. 5
[0016] In an aspect, when the relay coil is fully energized, the voltage relay outputs a voltage to vehicle electric accessories including the air conditioner and the blower.
[0017] Various objects, features, aspects, and advantages of the inventive subject matter will become more apparent from the following detailed description 10 of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.
[0018] It is to be understood that the aspects and embodiments of the disclosure described above may be used in any combination with each other. Several of the aspects and embodiments may be combined to form a further embodiment of the 15 disclosure.
[0019] The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed description. 20
BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The illustrated embodiments of the subject matter will be best understood by reference to the drawings, wherein like parts are designated by like numerals throughout. The following description is intended only by way of 25 example, and simply illustrates certain selected embodiments of devices, systems, and methods that are consistent with the subject matter as claimed herein, wherein:
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[0021] FIG. 1 illustrates a conventional circuit diagram of an electrical system for an air conditioning system of a vehicle; and
[0022] FIG. 2 illustrates a circuit diagram of an electrical system for an air conditioning system of a vehicle in accordance with an embodiment of the present disclosure. 5
[0023] The figures depict embodiments of the disclosure for purposes of illustration only. One skilled in the art will readily recognize from the following description that alternative embodiments of the structures and methods illustrated herein may be employed without departing from the principles of the disclosure described herein. 10
DETAILED DESCRIPTION
[0024] The detailed description of various exemplary embodiments of the disclosure is described herein with reference to the accompanying drawings. It should be noted that the embodiments are described herein in such details as to clearly communicate the disclosure. However, the amount of details provided 15 herein is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.
[0025] It is also to be understood that various arrangements may be devised 20 that, although not explicitly described or shown herein, embody the principles of the present disclosure. Moreover, all statements herein reciting principles, aspects, and embodiments of the present disclosure, as well as specific examples, are intended to encompass equivalents thereof.
[0026] The terminology used herein is for the purpose of describing particular 25 embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further
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understood that the terms “comprises”, “comprising”, “includes” and/or “including,” when used herein, specify the presence of stated features, integers, steps, operations, elements and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. 5
[0027] It should also be noted that in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two figures shown in succession may, in fact, be executed concurrently or may sometimes be executed in the reverse order, depending upon the functionality/acts involved. 10
[0028] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which example embodiments belong. It will be further understood that terms, e.g., those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context 15 of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
[0029] Embodiments explained herein pertain to an air conditioning system for a vehicle. In particular, the embodiments relate to an electrical control system which can delay a short period of time to provide a voltage supply for an air conditioner 20 of vehicle from a vehicle battery while the engine is cranked.
[0030] A battery is an essential part of a vehicle. Until engine of the vehicle starts, it is battery that meets its entire electric power requirement, including that required for starting the engine, which includes electric power required by starter motor for cranking the engine. 25
[0031] Once engine has been started, an alternator coupled to the engine takes over and starts supplying electric power air conditioner and a blower. In conventional electrical arrangements as shown in FIG. 1, output of the battery is
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directly connected to an air conditioner system including its blower, and therefore, the air conditioner instantly draws current from the battery. Now if somebody cranks on, the engine will draw heavy current again from the battery. Since battery is already giving heavy current to A/c and blower, may not be self-sufficient to allow current to be drawn to the engine. This may lead to non-start of the engine 5 and will adversely affect the battery. Also this may happen if the engine was turned off without switching off the a/c and blower in the previous cycle and when engine is turned on, the a/c and blower will again start first and again while cranking on the battery would already be drained out. It almost invariably results in alternator running at low loads and efficiencies, as well as loading the engine when such 10 loading may decrease the engine efficiency as well, resulting in higher fuel consumption.
[0032] To resolve these issues, electrical arrangement for a vehicle air conditioning system proposed herein is shown in FIG. 2, in accordance with an exemplary embodiment of the present disclosure. Further, the conventional 15 electrical arrangement as shown in FIG. 1 and its working is well known in the art and is thus omitted from this disclosure for the sake of brevity and/or clarity.
[0033] Referring to FIG. 2, the electrical arrangement for the vehicle air conditioning system includes an alternator ALT coupled to the engine to supply electric power for recharging battery through a battery connection point B+ and for 20 supplying electric power for various electric accessories, including an air conditioner E and its blower Ev, through a direct-supply connection point D+. The direct-supply connection point D+ feeds the received electric power to a voltage energizer KAC through an electric fuse FA. In an aspect, the electric fuse FA is a 5-ampere fuse. 25
[0034] The voltage energizer KAC is disposed between the alternator ALT and an N/O switch KA. Through the N/O switch KA, the air conditioner E and the blower Ev are connected. The voltage energizer KAC is energized on engine
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cranking, while the energizing of the energizer KAC closes the N/O switch KA to close an electric circuit for the air conditioner E and the blower Ev.
[0035] The voltage energizer KAC is configured as an energising circuit including a relay coil (not shown in FIG.2) which takes a predetermined time for energization after the receipt of the voltage at the voltage energizer KAC. Once the 5 relay coil is fully energised, the N/O switch KA is switched on to further supply the voltage to various vehicle electric accessories, including the air conditioner E and its blower Ev, through a common connection point of the electrical arrangement of the vehicle. Such delay in supply of the voltage to the various electric accessories allows the alternator to efficiently manage demand of power. Also, this delay will 10 provide sufficient time to the battery or the alternator to crank the engine with the sufficient voltage supply.
[0036] Each of the appended claims defines a separate invention, which for infringement purposes is recognized as including equivalents to the various elements or limitations specified in the claims. Depending on the context, all 15 references below to the “invention” may in some cases refer to certain specific embodiments only. In other cases, it will be recognized that references to the "invention" will refer to subject matter recited in one or more, but not necessarily all, of the claims.
[0037] Groupings of alternative elements or embodiments of the invention 20 disclosed herein are not to be construed as limitations. Each group member can be referred to and claimed individually or in any combination with other members of the group or other elements found herein. One or more members of a group can be included in, or deleted from, a group for reasons of convenience d/or patentability. When any such inclusion or deletion occurs, the specification is herein deemed to 25 contain the group as modified thus fulfilling the written description of all groups used in the appended claims.
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TECHNICAL ADVANTAGES
[0038] The present disclosure provides an air conditioning system of a vehicle with an improved electrical control system.
[0039] The present disclosure further provides an electrical control system which can delay a short period of time to provide a voltage supply for an air 5 conditioner of vehicle from a vehicle battery while the engine is cranked.
[0040] The present disclosure further provides electrical control system which can delay in supply of the voltage to the various electric accessories so as to allow the alternator to efficiently manage demand of power. Also, this delay will provide sufficient time to the battery or the alternator to crank the engine with the sufficient 10 voltage supply.
[0041] The above description does not provide specific details of manufacture or design of the various components. Those of skill in the art are familiar with such details, and unless departures from those techniques are set out, techniques, known, related art or later developed designs and materials should be employed. Those in 15 the art are capable of choosing suitable manufacturing and design details.
[0042] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure. It will be appreciated that several of the above-disclosed and other features and functions, or alternatives thereof, may be combined into other systems or 20 applications. Various presently unforeseen or unanticipated alternatives, modifications, variations, or improvements therein may subsequently be made by those skilled in the art without departing from the scope of the present disclosure as encompassed by the following claims.
[0043] The claims, as originally presented and as they may be amended, 25 encompass variations, alternatives, modifications, improvements, equivalents, and substantial equivalents of the embodiments and teachings disclosed herein,
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including those that are presently unforeseen or unappreciated, and that, for example, may arise from applicants/patentees and others.
[0044] While various aspects and embodiments have been disclosed herein, other aspects and embodiments will be apparent to those skilled in the art. The various aspects and embodiments disclosed herein are for purposes of illustration 5 and are not intended to be limiting,