A method and system for controlling dual batteries of an automobile

Abstract

The present invention provides a method and system for controlling dual batteries of an automobile, the method comprising: when receiving an engine status signal fed back by an engine controller, judging the startup status of the current vehicle; if judging that the current vehicle has been started, controlling the dual battery relay to be energized, and starting the generator, so that the generator charges the first battery and the second battery; detecting the electrical balance between the charging of the generator and the discharge of the first battery and the second battery by a battery sensor; if the electrical balance is detected to be positive, controlling the dual battery relay to be energized; if the electrical balance is detected to be negative, controlling the dual battery relay to be disconnected. The above method can effectively avoid the phenomenon that the dual battery is easily consumed by the modified electrical appliances when the car is turned off, resulting in the occurrence of the car power feeding phenomenon, and at the same time can effectively reduce the control cost of the dual battery, which is suitable for large-scale promotion and use.

Description

Technical Field

[0001] The present invention relates to the field of automobile technology, and in particular to an automobile dual-battery control method and system. Background Art

[0002] With the advancement of science and technology and the rapid development of productivity, cars have become popular in people's lives and have become one of the indispensable means of transportation for people to travel, greatly facilitating people's lives.

[0003] Nowadays, with the development of automobile technology and the diversification of user modification needs, people will add another battery to the original battery of the existing car to power the modified electrical appliances. However, the existing technology cannot reasonably coordinate and control the dual batteries, so that when the car is powered off, the two batteries are prone to consume too much power by the modified electrical appliances, resulting in the original car battery feeding, which in turn causes the vehicle to be unable to start. Summary of the invention

[0004] Based on this, the purpose of the present invention is to provide a method and system for controlling dual batteries in an automobile, so as to solve the problem that the dual batteries in the prior art are easily converted into electrical appliances and consume too much electricity when the automobile is powered off, resulting in power failure in the automobile.

[0005] A first aspect of an embodiment of the present invention provides a method for controlling dual batteries of an automobile, the method comprising:

[0006] When receiving the engine status signal fed back by the engine controller, determining the current starting status of the vehicle;

[0007] If it is determined that the current vehicle has been started, the dual battery relay is controlled to be energized, and the generator is started, so that the generator charges the first battery and the second battery;

[0008] detecting, by a battery sensor, an electrical balance between charging of the generator and discharging of the first battery and the second battery;

[0009] If the electrical balance is detected to be positive, controlling the dual battery relay to be energized;

[0010] If it is detected that the electrical balance is negative, the dual battery relay is controlled to be disconnected.

[0011] The beneficial effects of the present invention are: after receiving the engine status signal fed back by the engine controller, the startup status of the current vehicle is judged in real time. Furthermore, if it is judged that the current vehicle has been started, the dual battery relay is controlled to be energized, and the generator is started, so that the generator charges the first battery and the second battery. On this basis, the battery sensor is used to detect the electrical balance between the charging of the generator and the discharging of the first battery and the second battery. Specifically, if the electrical balance is detected to be positive, the dual battery relay is controlled to be energized; if the electrical balance is detected to be negative, the dual battery relay is controlled to be disconnected. The above method can effectively avoid the phenomenon of excessive power consumption of the dual battery by the modified electrical appliances when the car is turned off, which leads to the occurrence of car power feeding. At the same time, it can effectively reduce the control cost of the dual battery, which is suitable for large-scale promotion and use.

[0012] Preferably, the method further comprises:

[0013] If it is determined that the current vehicle is not started or is being ignited, the dual battery relay is controlled to be disconnected so that the first battery and the second battery are disconnected from the power supply circuit of the entire vehicle.

[0014] Preferably, when receiving the engine status signal fed back by the engine controller, the step of determining the current startup status of the vehicle includes:

[0015] Establishing a communication connection with the engine controller and controlling the engine controller to monitor the working status of the engine in real time;

[0016] When receiving the engine start signal fed back by the engine controller, determining that the current vehicle is in the started state;

[0017] When the engine start signal fed back by the engine controller is not received, it is determined that the current vehicle is in a non-start state.

[0018] Preferably, the step of detecting the electrical balance between the charging of the generator and the discharging of the first battery and the second battery by a battery sensor comprises:

[0019] A communication connection is established with the battery sensor, and the battery sensor is controlled to monitor the working status of the generator, the first battery and the second battery in real time, so that the battery sensor detects the electrical balance between the charging of the generator and the discharging of the first battery and the second battery.

[0020] Preferably, the method further comprises:

[0021] When it is detected that the current vehicle is turned off, the power supply status of the current vehicle is monitored, and the dual battery relay is controlled to be disconnected.

[0022] A second aspect of an embodiment of the present invention provides a dual-battery control system for an automobile, the system comprising:

[0023] A judgment module, used to judge the current starting state of the vehicle when receiving the engine state signal fed back by the engine controller;

[0024] A first processing module is used for controlling the dual battery relay to be attracted and starting the generator to charge the first battery and the second battery if it is determined that the current vehicle has been started;

[0025] a detection module, configured to detect an electrical balance between charging of the generator and discharging of the first battery and the second battery through a battery sensor;

[0026] A first execution module, configured to control the dual battery relay to be energized if the electrical balance is detected to be positive;

[0027] The second execution module is used to control the dual battery relay to disconnect if it is detected that the electrical balance is negative.

[0028] Wherein, in the above-mentioned automobile dual battery control system, the automobile dual battery control system further includes a second processing module, and the second processing module is specifically used for:

[0029] If it is determined that the current vehicle is not started or is being ignited, the dual battery relay is controlled to be disconnected so that the first battery and the second battery are disconnected from the power supply circuit of the entire vehicle.

[0030] Among them, in the above-mentioned automobile dual battery control system, the judgment module is specifically used for:

[0031] Establishing a communication connection with the engine controller and controlling the engine controller to monitor the working status of the engine in real time;

[0032] When receiving the engine start signal fed back by the engine controller, determining that the current vehicle is in the started state;

[0033] When the engine start signal fed back by the engine controller is not received, it is determined that the current vehicle is in a non-start state.

[0034] Among them, in the above-mentioned automobile dual battery control system, the detection module is specifically used for:

[0035] A communication connection is established with the battery sensor, and the battery sensor is controlled to monitor the working status of the generator, the first battery and the second battery in real time, so that the battery sensor detects the electrical balance between the charging of the generator and the discharging of the first battery and the second battery.

[0036] Among them, in the above-mentioned automobile dual battery control system, the automobile dual battery control system also includes a monitoring module, and the monitoring module is specifically used for:

[0037] When it is detected that the current vehicle is turned off, the power supply status of the current vehicle is monitored, and the dual battery relay is controlled to be disconnected.

[0038] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A flowchart of a method for controlling dual batteries of an automobile provided by a first embodiment of the present invention;

[0040] Figure 2 This is a structural block diagram of an automotive dual-battery control system provided in the third embodiment of the present invention.

[0041] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0042] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0043] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0045] Nowadays, with the development of automobile technology and the diversification of user modification needs, people will add another battery to the original battery of the existing car to power the modified electrical appliances. However, the existing technology cannot reasonably coordinate and control the dual batteries, so that when the car is powered off, the two batteries are prone to consume too much power by the modified electrical appliances, resulting in the original car battery feeding, which in turn causes the vehicle to be unable to start.

[0046] See also Figure 1 , shown is the automobile dual battery control method provided by the first embodiment of the present invention. The automobile dual battery control method provided by this embodiment can effectively prevent the dual batteries from being easily converted into electrical appliances and consuming too much electricity when the car is turned off, thereby causing the phenomenon of car power feeding. At the same time, it can effectively reduce the control cost of the dual batteries and is suitable for large-scale promotion and use.

[0047] Specifically, the automotive dual battery control method provided in this embodiment includes the following steps:

[0048] Step S10, when receiving the engine status signal fed back by the engine controller, determining the current starting status of the vehicle;

[0049] Specifically, in this embodiment, it should be noted that the automobile dual battery control method provided in this embodiment is specifically applied between the vehicle body controller, the engine controller, the dual battery relay, the first battery, the second battery and the battery sensor. The first battery represents the original vehicle battery, the second battery represents the back battery, and the first battery and the second battery are both electrically connected to the dual battery relay and the battery sensor.

[0050] Furthermore, in this step, it should be noted that when the body controller receives the engine status signal fed back by the engine controller, the body controller will immediately determine the current startup status of the vehicle at this time.

[0051] Step S20, if it is determined that the current vehicle has been started, the dual battery relay is controlled to be energized, and the generator is started, so that the generator charges the first battery and the second battery;

[0052] Furthermore, in this step, it should be noted that when the body controller determines that the current vehicle has been started, the body controller will further control the dual battery relay inside the current vehicle to be energized, and immediately start the generator in the current vehicle, so that the current generator can charge the above-mentioned first battery and second battery.

[0053] Step S30, detecting the electrical balance between the charging of the generator and the discharging of the first battery and the second battery by a battery sensor;

[0054] Furthermore, in this step, it should be noted that after the body controller starts the generator, the body controller will also correspondingly enable the battery sensor, and detect the electrical balance between the charging of the generator and the discharging of the first battery and the second battery through the battery sensor.

[0055] Step S40, if it is detected that the electrical balance is positive, controlling the dual battery relay to be energized;

[0056] Specifically, in this step, it should be noted that when the battery sensor detects that the electrical balance between the charging of the above-mentioned generator and the discharging of the first battery and the second battery is a positive value, that is, the battery charging rate of the battery is greater than the discharge rate, it indicates that the first battery and the second battery are in normal working condition. Therefore, the body controller immediately controls the dual battery relay to be energized.

[0057] Step S50: If it is detected that the electrical balance is negative, the dual battery relay is controlled to be disconnected.

[0058] Finally, in this step, it should be noted that when the battery sensor detects that the electrical balance between the charging of the above-mentioned generator and the discharging of the first battery and the second battery is a negative value, that is, the battery charging rate of the battery is less than the discharge rate, it indicates that the first battery and the second battery are in an abnormal working state. Therefore, the body controller immediately controls the dual battery relay to disconnect.

[0059] When in use, after receiving the engine status signal fed back by the engine controller, the startup status of the current vehicle is judged in real time. Furthermore, if it is judged that the current vehicle has been started, the dual battery relay is controlled to be energized, and the generator is started to charge the first battery and the second battery. On this basis, the battery sensor is used to detect the electrical balance between the charging of the generator and the discharging of the first battery and the second battery. Specifically, if the electrical balance is detected to be positive, the dual battery relay is controlled to be energized; if the electrical balance is detected to be negative, the dual battery relay is controlled to be disconnected. The above method can effectively prevent the dual battery from being easily consumed by the modified electrical appliances when the car is turned off, resulting in the phenomenon of car power feeding. At the same time, it can effectively reduce the control cost of the dual battery, which is suitable for large-scale promotion and use.

[0060] It should be noted that the above implementation process is only to illustrate the feasibility of the present application, but this does not mean that the automotive dual-battery control method of the present application has only the above-mentioned single implementation process. On the contrary, as long as the automotive dual-battery control method of the present application can be implemented, it can be included in the feasible implementation plan of the present application.

[0061] In summary, the automobile dual battery control method provided in the above embodiments of the present invention can effectively prevent the dual batteries from being easily converted into electrical appliances and consuming too much electricity when the car is turned off, thereby causing the phenomenon of car power feeding. At the same time, it can effectively reduce the control cost of the dual batteries and is suitable for large-scale promotion and use.

[0062] The second embodiment of the present invention also provides a method for controlling dual batteries of an automobile. The method for controlling dual batteries of an automobile provided in this embodiment specifically comprises the following steps:

[0063] Similarly, in this embodiment, it should be noted that the automobile dual battery control method provided in this embodiment is specifically applied between the vehicle body controller, the engine controller, the dual battery relay, the first battery, the second battery and the battery sensor. The first battery represents the original vehicle battery, the second battery represents the back battery, and both the first battery and the second battery are electrically connected to the dual battery relay and the battery sensor.

[0064] Step S11, establish a communication connection with the engine controller, and control the engine controller to monitor the working status of the engine in real time; when receiving the engine start signal fed back by the engine controller, determine that the current vehicle is in the started state; when receiving the engine start signal fed back by the engine controller, determine that the current vehicle is in the unstarted state.

[0065] Specifically, in this embodiment, it should be noted that this embodiment will first establish a communication connection between the body controller and the engine controller, such as connecting the body controller and the engine controller via a CAN bus. At the same time, the body controller controls the engine controller to monitor the working status of the engine in real time.

[0066] Furthermore, in this step, when the body controller receives the engine start signal fed back by the engine controller, it is determined that the current vehicle is in the started state; when the body controller does not receive the engine start signal fed back by the engine controller, it is determined that the current vehicle is in the unstarted state.

[0067] In addition, in this embodiment, it should be noted that the method further includes:

[0068] Step S21, if it is determined that the current vehicle is not started or is being ignited, the dual battery relay is controlled to be disconnected so that the first battery and the second battery are disconnected from the power supply circuit of the entire vehicle.

[0069] Furthermore, in this step, after the vehicle body controller receives the engine start signal fed back by the engine controller, the current vehicle body controller will immediately determine the current working state of the vehicle.

[0070] Specifically, if the body controller determines that the current vehicle is not started or is being ignited, the dual battery relay is controlled to be disconnected so that the first battery and the second battery are disconnected from the power supply circuit of the entire vehicle.

[0071] Step S31, if it is determined that the current vehicle has been started, the dual battery relay is controlled to be energized, and the generator is started, so that the generator charges the first battery and the second battery;

[0072] In addition, in this step, if the body controller determines that the current vehicle has been started, it controls the dual battery relay to be energized and starts the generator to allow the generator to charge the first battery and the second battery.

[0073] In addition, in this embodiment, it should be noted that the step of detecting the electrical balance between the charging of the generator and the discharging of the first battery and the second battery by using a battery sensor includes:

[0074] Step S41, establishing a communication connection with the battery sensor, and controlling the battery sensor to monitor the working status of the generator, the first battery and the second battery in real time, so that the battery sensor detects the electrical balance between the charging of the generator and the discharging of the first battery and the second battery.

[0075] In this step, it should be noted that this step will establish a communication connection between the body controller and the battery sensor, and enable the body controller to control the current battery sensor to monitor the working status of the above-mentioned generator, the above-mentioned first battery and the above-mentioned second battery in real time, so that the above-mentioned battery sensor can detect the electrical balance between the charging of the above-mentioned generator and the discharging of the above-mentioned first battery and the above-mentioned second battery.

[0076] Specifically, in this step, if the battery sensor detects that the electrical balance is positive, the body controller controls the dual battery relay to be energized;

[0077] Specifically, in this step, it should be noted that when the battery sensor detects that the electrical balance between the charging of the above-mentioned generator and the discharging of the first battery and the second battery is a positive value, that is, the battery charging rate of the battery is greater than the discharge rate, it indicates that the first battery and the second battery are in normal working condition. Therefore, the body controller immediately controls the dual battery relay to be energized.

[0078] If the battery sensor detects that the electrical balance is negative, the body controller controls the dual battery relay to be disconnected.

[0079] Finally, in this step, it should be noted that when the battery sensor detects that the electrical balance between the charging of the above-mentioned generator and the discharging of the first battery and the second battery is a negative value, that is, the battery charging rate of the battery is less than the discharge rate, it indicates that the first battery and the second battery are in an abnormal working state. Therefore, the body controller immediately controls the dual battery relay to disconnect.

[0080] In addition, in this embodiment, it should be noted that the method further includes:

[0081] Step S51, when it is detected that the current vehicle is turned off, the power supply status of the current vehicle is monitored, and the dual battery relay is controlled to be disconnected.

[0082] Finally, in this step, it should be noted that the above steps S11 to S41 explain in detail how to reasonably and effectively control the dual batteries inside the current vehicle when the engine inside the vehicle is started, that is, by effectively monitoring the electrical balance between the charging of the generator inside the current vehicle and the discharging of the first battery and the second battery, the dual battery relay can be closed and disconnected to achieve effective control of the first battery and the second battery.

[0083] In addition, in this embodiment, it is also necessary to explain that when the body controller detects that the current vehicle is turned off, the body controller will monitor the power status of the current vehicle in real time and control the dual battery relay inside the current vehicle to disconnect, so as to effectively avoid the dual batteries being easily consumed by modified electrical appliances when the car is turned off, thereby causing the car to be powered on.

[0084] It should be pointed out that the implementation principle and some technical effects of the method provided in the second embodiment of the present invention are the same as those of the first embodiment. For the sake of brief description, for matters not mentioned in this embodiment, reference may be made to the corresponding contents provided in the first embodiment.

[0085] In summary, the automobile dual battery control method provided in the above embodiments of the present invention can effectively prevent the dual batteries from being easily converted into electrical appliances and consuming too much electricity when the car is turned off, thereby causing the phenomenon of car power feeding. At the same time, it can effectively reduce the control cost of the dual batteries and is suitable for large-scale promotion and use.

[0086] See also Figure 2 , shown is a vehicle dual battery control system provided by a third embodiment of the present invention, the system comprising:

[0087] The judging module 12 is used to judge the current starting state of the vehicle when receiving the engine state signal fed back by the engine controller;

[0088] The first processing module 22 is used for controlling the dual battery relay to be attracted and starting the generator to charge the first battery and the second battery if it is determined that the current vehicle has been started;

[0089] A detection module 32, configured to detect an electrical balance between charging of the generator and discharging of the first battery and the second battery through a battery sensor;

[0090] A first execution module 42, configured to control the dual battery relay to be energized if the electrical balance is detected to be positive;

[0091] The second execution module 52 is used to control the dual battery relay to disconnect if it is detected that the electrical balance is negative.

[0092] Among them, in the above-mentioned automobile dual battery control system, the automobile dual battery control system further includes a second processing module 62, and the second processing module 62 is specifically used for:

[0093] If it is determined that the current vehicle is not started or is being ignited, the dual battery relay is controlled to be disconnected so that the first battery and the second battery are disconnected from the power supply circuit of the entire vehicle.

[0094] Among them, in the above-mentioned automobile dual battery control system, the judgment module is specifically used for:

[0095] Establishing a communication connection with the engine controller and controlling the engine controller to monitor the working status of the engine in real time;

[0096] When receiving the engine start signal fed back by the engine controller, determining that the current vehicle is in the started state;

[0097] When the engine start signal fed back by the engine controller is not received, it is determined that the current vehicle is in a non-start state.

[0098] Among them, in the above-mentioned automobile dual battery control system, the detection module is specifically used for:

[0099] A communication connection is established with the battery sensor, and the battery sensor is controlled to monitor the working status of the generator, the first battery and the second battery in real time, so that the battery sensor detects the electrical balance between the charging of the generator and the discharging of the first battery and the second battery.

[0100] Among them, in the above-mentioned automobile dual battery control system, the automobile dual battery control system also includes a monitoring module 72, and the monitoring module 72 is specifically used for:

[0101] When it is detected that the current vehicle is turned off, the power supply status of the current vehicle is monitored, and the dual battery relay is controlled to be disconnected.

[0102] In summary, the automobile dual battery control method and system provided in the above embodiments of the present invention can effectively prevent the dual batteries from being easily converted into electrical appliances and consuming too much electricity when the car is turned off, thereby causing the phenomenon of car power feeding. At the same time, it can effectively reduce the control cost of the dual batteries and is suitable for large-scale promotion and use.

[0103] It should be noted that the above modules can be functional modules or program modules, and can be implemented by software or hardware. For modules implemented by hardware, the above modules can be located in the same processor; or the above modules can be located in different processors in any combination.

[0104] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in conjunction with such instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in conjunction with such instruction execution systems, devices or apparatuses.

[0105] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0106] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0107] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0108] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for controlling dual batteries of an automobile, characterized in that: The method comprises: When receiving the engine status signal fed back by the engine controller, determining the current starting status of the vehicle; If it is determined that the current vehicle has been started, the dual battery relay is controlled to be energized, and the generator is started, so that the generator charges the first battery and the second battery; detecting, by a battery sensor, an electrical balance between charging of the generator and discharging of the first battery and the second battery; If the electrical balance is detected to be positive, controlling the dual battery relay to be energized; If the electrical balance is detected to be negative, controlling the dual battery relay to be disconnected; Establishing a communication connection with the engine controller and controlling the engine controller to monitor the working status of the engine in real time; When receiving the engine start signal fed back by the engine controller, determining that the current vehicle is in the started state; When no engine start signal fed back by the engine controller is received, determining that the current vehicle is in an unstarted state; A communication connection is established with the battery sensor, and the battery sensor is controlled to monitor the working status of the generator, the first battery and the second battery in real time, so that the battery sensor detects the electrical balance between the charging of the generator and the discharging of the first battery and the second battery.

2. The automotive dual battery control method according to claim 1, characterized in that: The method further comprises: If it is determined that the current vehicle is not started or is being ignited, the dual battery relay is controlled to be disconnected so that the first battery and the second battery are disconnected from the power supply circuit of the entire vehicle.

3. The automotive dual battery control method according to claim 1, characterized in that: The method further comprises: When it is detected that the current vehicle is turned off, the power supply status of the current vehicle is monitored, and the dual battery relay is controlled to be disconnected.

4. A dual-battery control system for an automobile, characterized in that: The system comprises: A judgment module, used to judge the current starting state of the vehicle when receiving the engine state signal fed back by the engine controller; A first processing module is used for controlling the dual battery relay to be attracted and starting the generator to charge the first battery and the second battery if it is determined that the current vehicle has been started; a detection module, configured to detect an electrical balance between charging of the generator and discharging of the first battery and the second battery through a battery sensor; A first execution module, configured to control the dual battery relay to be energized if the electrical balance is detected to be positive; a second execution module, configured to control the dual battery relay to disconnect if it is detected that the electrical balance is negative; Establishing a communication connection with the engine controller and controlling the engine controller to monitor the working status of the engine in real time; When receiving the engine start signal fed back by the engine controller, determining that the current vehicle is in the started state; When no engine start signal fed back by the engine controller is received, determining that the current vehicle is in an unstarted state; A communication connection is established with the battery sensor, and the battery sensor is controlled to monitor the working status of the generator, the first battery and the second battery in real time, so that the battery sensor detects the electrical balance between the charging of the generator and the discharging of the first battery and the second battery.

5. The automotive dual battery control system according to claim 4, characterized in that: The automobile dual battery control system further includes a second processing module, wherein the second processing module is specifically used for: If it is determined that the current vehicle is not started or is being ignited, the dual battery relay is controlled to be disconnected so that the first battery and the second battery are disconnected from the power supply circuit of the entire vehicle.

6. The automotive dual battery control system according to claim 4, characterized in that: The automobile dual battery control system further includes a monitoring module, which is specifically used for: When it is detected that the current vehicle is turned off, the power supply status of the current vehicle is monitored, and the dual battery relay is controlled to be disconnected.

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