Vehicle power supply control system and vehicle

Abstract

The invention provides a vehicle power supply control system, which comprises a power supply, an acquisition device, a power supply control module, a switch and an electrical center, and is characterized in that if the power supply control module judges that a received fault signal is a power supply circuit fault signal, the switch is controlled to be switched on so as to cut off the connection between the power supply and the electrical center; and if the power supply control module judges that the received fault signal is a load circuit fault signal, the power supply control module controls the electrical center to disconnect the electrical connection with the faulted load. When the power supply loop breaks down, the power supply loop is quickly disconnected, and when the load circuit breaks down, the connection with the fault load is disconnected through the electrical center, so that other load loops are prevented from failing due to the influence of the fault loop, and the reliability of the whole vehicle and the power supply system is greatly improved. The invention also provides a vehicle comprising the vehicle power supply control system.

Description

Technical Field

[0001] This invention relates to the field of vehicle power management technology, and in particular to a vehicle power control system and a vehicle including the system. Background Technology

[0002] The rapid development of intelligent driving technology has led to more loads in vehicles requiring stable power supply, placing higher demands on vehicle power networks. Whether it's the main controller for intelligent driving or the actuators such as the steering and braking systems, a stable and reliable power input is a prerequisite for normal operation. Current regulations related to the functional safety of intelligent driving require that steering and braking not be powered down simultaneously, that the intelligent driving domain controller and braking controller not be powered down simultaneously, and that the intelligent driving domain controller and HMI not be powered down simultaneously.

[0003] However, if the power supply circuit of the vehicle's power supply system malfunctions or becomes abnormal, it will cause the various loads in the vehicle to be unable to function properly. If the vehicle is in motion and cannot be stopped, there will be a safety hazard. Summary of the Invention

[0004] The purpose of this invention is to solve the safety hazard that exists in the prior art when the power supply circuit fails or malfunctions unexpectedly while the vehicle is in motion.

[0005] To address the aforementioned technical problems, embodiments of the present invention disclose a vehicle power control system, including a power supply, a data acquisition device, and a power control module. The power control module is connected to the data acquisition device, which is used to acquire vehicle status information and transmit the vehicle status information to the power control module. The power control module controls the power supply status of the power supply to multiple loads based on the vehicle status information acquired by the data acquisition device.

[0006] The vehicle power control system also includes a switch and an electrical center. The electrical center is electrically connected to the power supply and to multiple loads respectively. The switch is located on the connection circuit between the power supply and the electrical center and is connected to the power control module. The acquisition device includes an ignition status acquisition module and a diagnostic module. The ignition status acquisition module is used to acquire the vehicle's ignition status signal and transmit it to the power control module. If the power control module receives an ignition status signal indicating that the vehicle is ignited, it sends a diagnostic command signal to the diagnostic module. The diagnostic module is used to diagnose the circuit. If the diagnostic module detects a circuit fault, it sends a fault signal to the power control module. If the power control module determines that the received fault signal is a power circuit fault signal, it controls the switch to open to disconnect the power supply from the electrical center. If the power control module determines that the received fault signal is a load circuit fault signal, it controls the electrical center to disconnect the electrical connection from the faulty load.

[0007] Using the above technical solution, when the vehicle's power supply is normal, the electrical center operates normally, the switch is normally closed, and the power supply circuit can normally supply power to the loads connected to the electrical center. Once a power supply circuit fails, the power control module identifies the fault, sends a signal, and quickly disconnects the power supply circuit. Furthermore, the electrical center is configured with a separate connection for each load power supply circuit. When a load circuit fails, the connection to the faulty load is disconnected through the electrical center, preventing other load circuits from failing due to the faulty circuit. This ensures that all vehicle safety-related functions do not fail simultaneously, thereby greatly improving the reliability of the vehicle and power system.

[0008] According to another specific embodiment of the present invention, a vehicle power control system disclosed in this embodiment includes an electrical center comprising a first electrical center and a second electrical center, and multiple loads comprising multiple first-type loads and multiple second-type loads. The first electrical center is electrically connected to the multiple first-type loads, and the second electrical center is electrically connected to the multiple second-type loads. If the power control module determines that the received fault signal is a fault signal of a first-type load circuit, it controls the first electrical center to disconnect from the faulty first-type load and continues to send diagnostic command signals to the diagnostic module. If the power control module continues to receive fault signals and determines that they are fault signals of a first-type load circuit, it controls the first electrical center to disconnect from the multiple first-type loads. If the power control module determines that the received fault signal is a fault signal of a second-type load circuit, it controls the second electrical center to disconnect from the faulty second-type load and continues to send diagnostic command signals to the diagnostic module. If the power control module continues to receive fault signals and determines that they are fault signals of a second-type load circuit, it controls the second electrical center to disconnect from the multiple second-type loads.

[0009] Using the above technical solution, when a fault occurs in the power supply circuit of one or more electrical loads, the corresponding electrical center controls the disconnection of the faulty load's switch to prevent other load power supply circuits from failing due to the faulty circuit. Furthermore, if disconnecting the corresponding electrical load's switch still fails to resolve the fault, the main switch of that electrical center is disconnected to ensure the normal operation of the electrical loads connected to the other electrical center. By rationally configuring the electrical loads connected to the two electrical centers, the vehicle's safety-related functions can be guaranteed not to fail simultaneously, thereby greatly improving the reliability of the vehicle and its power system.

[0010] According to another specific embodiment of the present invention, a vehicle power control system is disclosed. The power supply includes a battery and a generator, and the switches include a first switch and a second switch. The first switch is disposed on the connection circuit between the battery and the electrical center. The power control module controls the connection and disconnection of the circuit between the battery and the electrical center by controlling the closing or opening of the first switch. The second switch is disposed on the connection circuit between the generator and the electrical center. The power control module controls the connection and disconnection of the circuit between the generator and the electrical center by controlling the closing or opening of the second switch. If the power control module determines that the received fault signal is a battery circuit fault signal, it controls the first switch to open. If the power control module determines that the received fault signal is a generator circuit fault signal, it controls the second switch to open.

[0011] By adopting the above technical solution, if a power output circuit fails, the system can diagnose the fault through the diagnostic module and isolate the faulty circuit to ensure that the normal circuit is not affected by the faulty circuit, so that at least one power output circuit in the system can work normally.

[0012] According to another specific embodiment of the present invention, a vehicle power control system is disclosed. The power source includes a battery, and the data acquisition device includes a battery sensor for acquiring the battery's charge level. If the power control module receives an ignition status signal indicating no ignition, it sends a data acquisition command signal to the battery sensor, which then acquires the charge level and transmits it to the power control module. Furthermore, if the power control module determines that the charge level is less than or equal to a first charge threshold and greater than a second charge threshold, it controls the electrical control center to disconnect the connection circuit with a portion of the load. If the power control module determines that the charge level is less than or equal to the second charge threshold, it controls a switch to open to stop the battery from supplying power.

[0013] Using the above technical solution, when the vehicle is parked, the battery power is monitored regularly. When the battery power is lower than the first power threshold, the electrical center restricts the operation of some electrical loads during parking, further reducing static current and extending parking time. When the battery power is lower than the second power threshold, the battery power supply circuit is directly disconnected, thereby preventing the battery from being damaged by deep discharge, while ensuring that the vehicle can still be started next time.

[0014] According to another specific embodiment of the present invention, a vehicle power control system disclosed in this embodiment further includes a central gateway, which is communicatively connected to a power control module and a terminal. If the power control module determines that the battery charge is less than or equal to a first charge threshold and greater than a second charge threshold, it controls the central gateway to periodically send a first warning message to the terminal to remind the vehicle owner to charge the battery. If the power control module determines that the battery charge is less than or equal to the second charge threshold, it controls the central gateway to send a second warning message to the terminal to remind the vehicle owner that the power is about to be cut off.

[0015] Using the above technical solution, when the battery charge is lower than the first charge threshold, the system restricts the operation of some electrical loads while the vehicle is parked, and reminds the driver to start the vehicle as soon as possible to charge the battery through various means; when the battery charge is lower than the second charge threshold, the system disconnects the battery circuit and notifies the owner that the power will be cut off.

[0016] According to another specific embodiment of the present invention, a vehicle power control system disclosed in the present invention further includes a reset device; the switch includes a first switch, which is disposed on the connection circuit between the battery and the electrical center, and the power control module controls the on / off state of the circuit between the battery and the electrical center by controlling the closing or opening of the first switch; the reset device is drivenly connected to the first switch, and the first switch can be controlled to close by the reset device.

[0017] According to another specific embodiment of the present invention, a vehicle power control system disclosed in this embodiment includes a parking timer module for collecting parking duration. If the power control module receives an ignition status signal indicating that the ignition is off, it also sends a collection command signal to the parking timer module, which collects the parking duration and transmits it to the power control module. If the power control module determines that the parking duration is greater than or equal to a time threshold, it controls the switch to open to disconnect the battery from the electrical center.

[0018] By adopting the above technical solution, when a vehicle is involved in a collision, the battery power supply circuit and the generator power supply circuit will be immediately disconnected to minimize the risk of fire caused by a short circuit in the power supply circuit due to the collision.

[0019] According to another specific embodiment of the present invention, a vehicle power control system disclosed in this embodiment includes a collision sensor for acquiring vehicle collision signals; wherein if the power control module receives an ignition status signal indicating that the vehicle is ignited and receives a collision signal, the power control module controls a switch to open to disconnect the power supply from the electrical center.

[0020] According to another specific embodiment of the present invention, a vehicle power control system disclosed in the present invention further includes a backup battery, which is connected to a generator, a power control module, a vehicle controller, and a door lock, and the generator can charge the backup battery; wherein if the power control module receives an ignition status signal indicating that the vehicle is ignited and receives a collision signal, the power control module also controls the backup battery to supply power to the vehicle controller and the door lock.

[0021] With the above technical solution, the main power supply circuit is immediately disconnected in the event of a collision, and the backup battery supplies power to the vehicle controller and door locks to ensure that the doors can be unlocked, which will facilitate subsequent rescue work.

[0022] An embodiment of the present invention also discloses a vehicle, including the vehicle power control system of the present invention. Attached Figure Description

[0023] Figure 1 This is a structural block diagram of the vehicle power control system of the present invention;

[0024] Figure 2 This is a structural block diagram of a specific embodiment of the vehicle power control system of the present invention;

[0025] Figure 3 This is a control flowchart of a specific embodiment of the power control module of the vehicle power control system of the present invention;

[0026] Figure 4 This is a control flowchart of another specific embodiment of the power control module of the vehicle power control system of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10. Power supply; 11. Storage battery; 12. Generator; 13. Backup battery;

[0029] 20. Data acquisition device; 21. Battery sensor;

[0030] 30. Power control module;

[0031] 40. Load; 41. Category I load; 42. Category II load;

[0032] 50. Switch; 51. First switch; 52. Second switch;

[0033] 60. Electrical Center; 61. First Electrical Center; 62. Second Electrical Center;

[0034] 70. Central gateway;

[0035] 80. Reset device;

[0036] 90. Vehicle controller;

[0037] 100. Door lock. Detailed Implementation

[0038] A stable power supply is crucial for safe driving during vehicle operation. Unexpected malfunctions or abnormalities in the vehicle's power supply system pose safety hazards. To address these issues, this invention provides a vehicle power control system and a vehicle incorporating this system.

[0039] To better understand the vehicle power control system and vehicle structure and configuration disclosed in this invention, a detailed description is provided below with reference to specific embodiments and accompanying drawings.

[0040] Example 1

[0041] like Figure 1 As shown, the vehicle power control system provided by this invention includes a power supply 10, a data acquisition device 20, and a power control module 30. The power supply 10 may include a battery and a generator. During the vehicle's standby and starting phases, the battery typically supplies power to the entire vehicle, handling the vehicle's static current and the starting current. After the vehicle starts, the generator serves as the power source and simultaneously charges the battery. Furthermore, when the generator is used as the power source, it also includes a DC-DC converter to transform the high-voltage DC power generated by the generator into power for the vehicle's loads. The power control module 30 is connected to the data acquisition device 20. The data acquisition device 20 collects vehicle status information and transmits it to the power control module 30. The power control module 30 controls the power supply status of the power supply 10 to multiple loads 40 based on the vehicle status information collected by the data acquisition device 20. Specifically, if the data acquisition device 20 detects that the vehicle is parked and the battery power is insufficient, the power control module 30 controls the battery to stop supplying power; if the data acquisition device 20 detects that the generator power is insufficient to meet the vehicle load requirements, the power control module 30 controls the battery to participate in power supply; if the data acquisition device 20 detects that a collision has occurred, the power control module 30 controls the power supply 10 to stop supplying power, etc. The power control module 30 can be a smart power control module (IPCM).

[0042] like Figure 1 As shown, the vehicle power control system also includes a switch 50 and an electrical center 60. The electrical center 60 is electrically connected to the power supply 10 and is also electrically connected to multiple loads 40. The electrical center 60 can be equipped with multiple ports with switches, each connected to one of the multiple loads 40. The switches in the electrical center 60 can control the on / off state of the electrical connection between the power supply 10 and each of the multiple loads 40, thereby controlling the power supply from the power supply 10 to different loads 40. The switch 50 is located on the connection circuit between the power supply 10 and the electrical center 60 and is connected to the power control module 30. The power control module 30 can control the on / off state of the power supply 10 and the electrical center 60 by controlling the switch 50, thereby controlling whether the power supply 10 supplies power.

[0043] The acquisition device 20 includes an ignition status acquisition module (not shown in the figure) and a diagnostic module (not shown in the figure); the ignition status acquisition module is used to acquire the vehicle's ignition status signal and transmit it to the power control module 30. Specifically, it acquires relevant signals of whether the vehicle is ignited and started, such as the KL15 electrical signal. If the KL15 high drive signal is acquired, it indicates that the vehicle has been ignited. Figure 3 and Figure 4 The diagram illustrates two control flows for the power control module 30. Solid lines represent electrical connections, and dashed lines represent communication connections. For example... Figure 3 As shown, if the power control module 30 receives an ignition status signal indicating ignition, it sends a diagnostic command signal to the diagnostic module. The diagnostic module performs circuit diagnostics. If the diagnostic module detects a circuit fault, it sends a fault signal to the power control module 30. Furthermore, if the power control module 30 determines that the received fault signal is a power circuit fault signal, it controls the switch 50 to open, disconnecting the power supply 10 from the electrical center 60. If the power control module 30 determines that the received fault signal is a load circuit fault signal, it controls the electrical center 60 to disconnect the electrical connection from the faulty load 40. The ignition status acquisition module can be integrated into the power control module 30, and the diagnostic module can be integrated into the power control module 30 and / or the electrical center 60.

[0044] Specifically, the diagnostic module analyzes the fault modes of the power supply circuit during the circuit diagnosis process, including overcurrent faults, overvoltage faults, and undervoltage faults. When the load current is too high, a short circuit occurs in the circuit, or at least one of the generator, DC-DC converter, or battery malfunctions, the current flowing through switch 50 will rise sharply. If the current is too high, it may burn out the power control module 30, switch 50, or even cause the vehicle controller to fail, seriously threatening driving safety. Therefore, when the diagnostic module detects that the current flowing through switch 50 exceeds the threshold, it determines that an overcurrent fault has occurred in the circuit. When a high-power load is momentarily disconnected, or when the generator or DC-DC converter malfunctions, the voltage in the circuit may rise abnormally, potentially damaging the electrical loads in the circuit. Therefore, when the diagnostic module detects overvoltage in the power supply circuit, it determines that an overvoltage fault has occurred in the circuit. When a high-power load is turned on momentarily, the vehicle is started, or a short circuit occurs in the circuit, it will cause undervoltage in the circuit, leading to the failure of the electrical loads. Therefore, when the diagnostic module detects undervoltage in the power supply circuit, it determines that an undervoltage fault has occurred in the circuit.

[0045] The vehicle power control system provided by this invention adds an electrical center 60 to the network and a switch 50 to the power supply circuit. When the vehicle power supply is normal, the electrical center 60 operates normally, the switch 50 is normally closed, and the power supply 10 can normally supply power to the electrical load 40. Once a fault occurs in the power supply circuit of the power supply 10, the power control module 30 can quickly identify the fault and send a signal to open the switch 50 to quickly disconnect the power supply circuit. Furthermore, when a fault occurs in the circuit of the electrical load 40, the electrical center 60 controls the switch of the faulty electrical load 40 to disconnect the connection with the faulty load 40, thus isolating the fault and preventing other circuits from failing due to the faulty circuit. This ensures that normal circuits are not affected by the faulty circuit, guaranteeing that all vehicle safety-related functions will not fail simultaneously, thereby greatly improving the reliability of the vehicle and the power system. It should be noted that after troubleshooting the circuit fault, the circuit can be reclosed via a one-button power restoration, reducing the need for fuse replacement compared to a traditional electrical center.

[0046] According to one specific embodiment of the present invention, such as Figure 2 As shown, the electrical center 60 includes a first electrical center 61 and a second electrical center 62. The multiple loads 40 include multiple first-class loads 41 and multiple second-class loads 42. The first electrical center 61 is electrically connected to each of the multiple first-class loads 41, and the second electrical center 62 is electrically connected to each of the multiple second-class loads 42. If the power control module 30 determines that the received fault signal is a circuit fault signal from a first-class load 41, it controls the first electrical center 61 to disconnect from the faulty first-class load 41 and continues to send diagnostic command signals to the diagnostic module. Furthermore, if the power control module 30 continues to... Upon receiving a fault signal and determining that a circuit fault has occurred in the first type of load 41, the first electrical center 61 is disconnected from all first type loads 41. If the power control module 30 determines that the received fault signal is a circuit fault in the second type of load 42, it controls the second electrical center 62 to disconnect from the faulty second type of load 42 and continues to send diagnostic command signals to the diagnostic module. If the power control module 30 continues to receive fault signals and determines that a circuit fault has occurred in the second type of load 42, it controls the second electrical center 62 to disconnect from multiple second type loads 42.

[0047] By adopting the above scheme, the electrical loads are divided into two groups. When a fault occurs in the power supply circuit of one or more electrical loads, the corresponding electrical center controls the disconnection of the switch for the faulty load, preventing other load power supply circuits from failing due to the faulty circuit. Furthermore, if disconnecting the corresponding electrical load switch still cannot resolve the fault, the main switch of that electrical center is disconnected to ensure the normal operation of the electrical loads connected to the other electrical center. By reasonably setting the electrical loads connected to the two electrical centers, the safety-related functions of the entire vehicle can be guaranteed not to fail simultaneously, thereby greatly improving the reliability of the entire vehicle and power system.

[0048] According to one specific embodiment of the present invention, the first type of load 41 includes an engine controller, a brake controller, and a human-machine interface; the second type of load 42 includes an intelligent driving controller and an intelligent driving actuator.

[0049] According to one specific embodiment of the present invention, such as Figure 2 As shown, the power supply 10 includes a battery 11 and a generator 12. The switch 50 includes a first switch 51 and a second switch 52. The first switch 51 is located on the connection circuit between the battery 11 and the electrical center 60. The power control module 30 controls the connection and disconnection of the circuit between the battery 11 and the electrical center 60 by controlling the opening and closing of the first switch 51. The second switch 52 is located on the connection circuit between the generator 12 and the electrical center 60. The power control module 30 controls the connection and disconnection of the circuit between the generator 12 and the electrical center 60 by controlling the opening and closing of the second switch 52. Specifically, if the power control module 30 determines that the received fault signal is a circuit fault signal of the battery 11, it controls the first switch 51 to open; if the power control module 30 determines that the received fault signal is a circuit fault signal of the generator 12, it controls the second switch 52 to open. It should be noted that... Figure 2 As shown, when the electrical center 60 includes a first electrical center 61 and a second electrical center 62, the power supply circuit of the battery 11 is divided into two branches that are connected to the first electrical center 61 and the second electrical center 62 respectively. The first switch 51 is located before the circuit branch and can be integrated on the positive terminal of the battery 11. When the first switch 51 is turned on, the circuit between the battery 11 and the two electrical centers 61 / 62 is disconnected. Similarly, the power supply circuit of the generator 12 is also divided into two branches that are connected to the first electrical center 61 and the second electrical center 62 respectively. The second switch 52 is located before the circuit branch.

[0050] With the above solution, the vehicle power control system has two power output circuits. If one power output circuit fails, the system can diagnose the fault through the diagnostic module and isolate the faulty circuit to ensure that the normal circuit is not affected by the faulty circuit, so that at least one power output circuit in the system can work normally.

[0051] As the sole energy source for a vehicle when parked and as a backup energy source when the vehicle is in normal operation, the battery supplies power to the vehicle's electrical load and plays a crucial role in the vehicle's low-voltage power network system. However, the battery is also a "consumable component," with its usable capacity decreasing over time. If the battery is depleted and not recharged in time, its usable capacity will drop drastically, potentially even rendering the battery unusable.

[0052] Even after the vehicle's power is off, a small current will still flow through some loads, continuously consuming battery power. When a vehicle is parked for extended periods, there is a risk of battery depletion. For example, during long-distance transport (such as by sea), the battery is prone to depletion due to the long transport period and the difficulty of charging the battery during transit. Furthermore, in daily use, vehicles may be parked for extended periods due to the owner's absence, resulting in low or even completely depleted battery power. Once the vehicle battery is depleted, it not only prevents the vehicle from starting, affecting the driver's experience, but also severely reduces the battery's health.

[0053] Therefore, according to one specific embodiment of the present invention, such as Figure 2 As shown, the power supply 10 includes a battery 11, and the data acquisition device 20 includes an Electronic Battery Sensor (EBS) 21, which can be installed on the negative terminal of the battery 11 to collect the state of charge (SOC) of the battery 11; as shown Figure 3 and Figure 4 As shown, if the power control module 30 receives an ignition status signal indicating that the vehicle is in a parked state, it sends a data acquisition command signal to the battery sensor 21. The battery sensor 21 collects the battery charge and transmits it to the power control module 30. The power control module 30 compares the battery charge with a pre-stored battery charge threshold and controls the power supply state of the battery 11 based on the comparison result. If the power control module 30 determines that the battery charge is greater than the first battery charge threshold (BAT_SOCthr1), it means that the current state of the battery 11 can still support the vehicle's starting after parking, and the power control module 30 does not take any action. If the power control module 30 determines that the battery charge is less than or equal to the first battery charge threshold (BAT_SOCthr1), it continues to determine whether the battery charge is greater than the second battery charge threshold. If the threshold (BAT_SOCthr2) is greater than the second power threshold (BAT_SOCthr2), it indicates that the battery 11 power level is at risk of not being able to support the vehicle's starting after parking. The control electrical center 60 disconnects the connection circuit with part of the load 40. If the power control module 30 determines that the power level is less than or equal to the second power threshold (BAT_SOCthr2), it indicates that the battery 11 power level has dropped to the critical point where it can only meet the requirements for a single vehicle start. The control switch 50 is turned on to control the battery 11 to stop supplying power. In the case of the first switch 51 and the second switch 52, the power control module 30 sends a Swch1_off signal to forcibly disconnect the first switch 51, in order to ensure the smooth starting of the vehicle next time and the health of the battery 11 as much as possible.

[0054] It should be noted that the first and second power thresholds are calibration values. The first power threshold can be the SOC value of the battery that can still start the vehicle after two weeks of standby based on the current static current. The second power threshold can be the minimum SOC value that can start the vehicle plus an appropriate safety margin.

[0055] Using the above solution, when the vehicle is parked, the battery power of the battery 11 is monitored periodically. When the battery power of the battery 11 is lower than the first power threshold, the electrical center 60 limits the operation of part of the electrical load 40 when parking, further reducing the static current and extending the parking time. When the battery power of the battery 11 is lower than the second power threshold, the power supply circuit of the battery 11 is directly disconnected, thereby preventing the battery 11 from being deeply discharged and damaged, while ensuring that the vehicle can still be started next time.

[0056] According to one specific embodiment of the present invention, such as Figure 2 As shown, the power control system also includes a central gateway (T-BOX) 70, which is communicatively connected to the power control module 30 and a terminal (not shown in the figure). The terminal can be the vehicle owner's mobile phone, tablet, laptop, etc. If the power control module 30 determines that the battery 11's charge is less than or equal to a first charge threshold and greater than a second charge threshold, it controls the central gateway 70 to periodically send a first warning message to the terminal via an app or SMS, notifying the vehicle owner that the battery 11's charge is low, thus reminding the owner to start the vehicle to charge the battery 11. The vehicle owner can also remotely disconnect the battery 11 circuit via their mobile phone as needed. If the power control module 30 determines that the battery 11's charge is less than or equal to the second charge threshold, it controls the central gateway 70 to send a second warning message to the terminal, notifying the vehicle owner that the battery 11's charge has reached a critical point, thus reminding the owner that the battery 11 is about to be disconnected from power and stop supplying power to the electrical loads.

[0057] Using the above scheme, when the battery 11 charge is lower than the first charge threshold, the operation of some electrical loads when the vehicle is parked is restricted, and the driver is reminded to start the vehicle as soon as possible to charge the battery 11 through various means; when the battery 11 charge is lower than the second charge threshold, the battery 11 circuit is directly disconnected, and the owner is notified that the power will be cut off.

[0058] According to one specific embodiment of the present invention, such as Figure 2 As shown, switch 50 includes a first switch 51, which is disposed on the connection circuit between battery 11 and electrical center 60. Power control module 30 controls the connection and disconnection of the circuit between battery 11 and electrical center 60 by controlling the closing or opening of the first switch 51. The power control system also includes a reset device 80, which is connected to the first switch 51. When the first switch 51 is open, the first switch 51 can be closed by manually operating the reset device 80.

[0059] According to one specific embodiment of the present invention, the data acquisition device 20 further includes a parking timer module, which acquires the parking duration; if the power control module 30 receives an ignition status signal indicating no ignition, it also sends a data acquisition command signal to the parking timer module, which acquires the parking duration and transmits it to the power control module 30; if the power control module 30 determines that the parking duration is greater than or equal to a time threshold (such as 3 days, 4 days, 5 days, etc.), indicating that the vehicle has been parked for a long time and it is estimated that it may be parked for a long time, the control switch 50 is turned on to disconnect the battery 11 from the electrical center 60, and at the same time, the central gateway 70 can be controlled to send a warning message to the terminal.

[0060] Furthermore, when the owner anticipates that the vehicle will be parked for an extended period, they can also actively disconnect the battery circuit through direct control or remote control via an app to better protect the battery and prevent the vehicle from failing to start after being parked for a long time.

[0061] According to one specific embodiment of the present invention, the acquisition device 20 includes a collision sensor for acquiring vehicle collision signals, and if a collision signal is acquired, it is sent to the power control module 30; wherein, if... Figure 4 As shown, if the power control module 30 receives an ignition status signal indicating that the power is ignited, it first determines whether a collision signal has been received. If a collision signal is received, the power control module 30 controls the switch 50 to open, thereby disconnecting the power supply 10 from the electrical center 60. If no collision signal is received, a diagnostic command signal is sent to the diagnostic module to determine whether a fault signal has been received, and then subsequent operations are performed.

[0062] In the event of a vehicle collision, a short circuit in the electrical circuit could cause the circuit temperature to rise and potentially catch fire, threatening the safety of the occupants. The vehicle power control system of this invention, upon receiving a collision signal from the collision sensor, immediately issues Swch1_off and Swch2_off signals, opening the first switch 51 and the second switch 52 to disconnect the power supply circuits of the battery 11 and the generator 12, while simultaneously controlling the generator 12 to shut down, thus minimizing the risk of fire caused by a short circuit in the power supply circuit due to the collision.

[0063] Relevant safety regulations require that vehicle doors must be unlocked in the event of a collision to facilitate subsequent rescue efforts. Therefore, according to one specific embodiment of the present invention, such as... Figure 2 As shown, the power supply 10 also includes a backup battery 13, which is connected to the generator 12, the power control module 30, the vehicle controller 90, and the door lock 100. After the vehicle is powered on, the generator 12 can charge the backup battery 13. The backup battery 13 is connected in parallel with the vehicle controller 90 and the door lock 100 circuits. Wherein, as Figure 4 As shown, if the ignition status signal received by the power control module 30 is ignition and a collision signal is received, the power control module 30 controls the switch 50 to open and also controls the backup battery 13 to supply power to the vehicle controller 90 and the door lock 100.

[0064] Using the above scheme, in the event of a collision, the main power supply circuit is immediately disconnected, and the backup battery 13 supplies power to the vehicle controller 90 and door locks 100, ensuring that the door locks 100 can be unlocked to facilitate subsequent rescue operations. The energy stored in the backup battery 13 is calibrated based on the energy required to unlock all the vehicle doors three times.

[0065] This invention proposes a vehicle power control system that can disconnect the battery circuit before the battery is depleted when the vehicle is parked, disconnect the faulty circuit when the generator power supply circuit or battery circuit fails during driving, isolate the faulty electrical load circuit when the electrical load fails, disconnect the battery and generator power supply circuits when the vehicle is involved in a collision, and simultaneously ensure that the doors can be unlocked.

[0066] Example 2

[0067] The vehicle provided by this invention includes the vehicle power control system described in Embodiment 1. It ensures that all vehicle safety-related functions do not fail simultaneously, thereby greatly improving vehicle reliability.

[0068] It should be noted that, in addition to the specific embodiments described above, those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention is presented in conjunction with preferred embodiments, this does not mean that the features of the invention are limited to these embodiments. On the contrary, the purpose of describing the invention in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of the present invention. To provide a deep understanding of the invention, many specific details are included in the above description, and the invention may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of the invention, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0069] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0070] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is usually placed in during use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0071] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0072] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0073] While the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the invention in conjunction with specific embodiments, and it should not be construed that the specific implementation of the invention is limited to these descriptions. Those skilled in the art can make adjustments in form and detail.

Claims

1. A vehicle power control system, comprising a power supply, a data acquisition device, and a power control module, wherein the power control module is connected to the data acquisition device, the data acquisition device is used to acquire vehicle status information and transmit the vehicle status information to the power control module, and the power control module controls the power supply status of the power supply to multiple loads according to the vehicle status information acquired by the data acquisition device; characterized in that, The vehicle power control system further includes a switch and an electrical center, the electrical center being electrically connected to the power supply, and the electrical center being electrically connected to the plurality of loads respectively; the switch is disposed on the connection circuit between the power supply and the electrical center and is connected to the power control module; and the acquisition device includes an ignition status acquisition module and a diagnostic module; wherein The ignition status acquisition module is used to acquire the vehicle's ignition status signal and transmit it to the power control module. If the power control module receives the ignition status signal indicating that the vehicle is ignited, it sends a diagnostic command signal to the diagnostic module. The diagnostic module is used to diagnose the circuit. If the diagnostic module detects a circuit fault, it sends a fault signal to the power control module. If the power control module determines that the received fault signal is a power circuit fault signal, it controls the switch to open to disconnect the power supply from the electrical center; if the power control module determines that the received fault signal is a load circuit fault signal, it controls the electrical center to disconnect the electrical connection from the faulty load.

2. The vehicle power control system as described in claim 1, characterized in that, The electrical center includes a first electrical center and a second electrical center, and the plurality of loads includes a plurality of first-type loads and a plurality of second-type loads. The first electrical center is electrically connected to each of the plurality of first-type loads, and the second electrical center is electrically connected to each of the plurality of second-type loads. If the power control module determines that the received fault signal is a first type of load circuit fault signal, it controls the first electrical center to disconnect the power connection with the faulty first type of load and continues to send the diagnostic command signal to the diagnostic module; and if the power control module continues to receive the fault signal and determines that it is a first type of load circuit fault signal, it controls the first electrical center to disconnect the power connection with the plurality of first type loads. If the power control module determines that the received fault signal is a fault signal of the second type of load circuit, it controls the second electrical center to disconnect the power connection with the faulty second type of load and continues to send the diagnostic command signal to the diagnostic module; and if the power control module continues to receive the fault signal and determines that it is a fault signal of the second type of load circuit, it controls the second electrical center to disconnect the power connection with the plurality of second type loads.

3. The vehicle power control system as described in claim 1, characterized in that, The power source includes a battery and a generator, and the switch includes a first switch and a second switch; the first switch is disposed on the connection circuit between the battery and the electrical center, and the power control module controls the connection and disconnection of the circuit between the battery and the electrical center by controlling the closing or opening of the first switch; the second switch is disposed on the connection circuit between the generator and the electrical center, and the power control module controls the connection and disconnection of the circuit between the generator and the electrical center by controlling the closing or opening of the second switch. in If the power control module determines that the received fault signal is a battery circuit fault signal, it controls the first switch to open; if the power control module determines that the received fault signal is a generator circuit fault signal, it controls the second switch to open.

4. The vehicle power control system as described in claim 3, characterized in that, The power source includes a storage battery, and the data acquisition device includes a battery sensor for acquiring the battery's charge level; wherein If the power control module receives an ignition status signal indicating no ignition, it sends a data acquisition command signal to the battery sensor. The battery sensor then acquires the battery charge and transmits it to the power control module. If the power control module determines that the power level is less than or equal to a first power threshold and greater than a second power threshold, it controls the electrical center to disconnect the connection circuit with part of the load. If the power control module determines that the power level is less than or equal to the second power threshold, it controls the switch to open to stop the battery from supplying power.

5. The vehicle power control system as described in claim 4, characterized in that, The power control system further includes a central gateway, which is communicatively connected to both the power control module and the terminal; wherein If the power control module determines that the battery charge is less than or equal to the first charge threshold and greater than the second charge threshold, it controls the central gateway to periodically send a first warning message to the terminal to remind the vehicle owner to charge the battery. If the power control module determines that the battery charge is less than or equal to the second charge threshold, it controls the central gateway to send a second warning message to the terminal to remind the vehicle owner that the power is about to be cut off.

6. The vehicle power control system as described in claim 4, characterized in that, The power control system further includes a reset device; the reset device is connected to the first switch and can control the first switch to close.

7. The vehicle power control system as described in claim 5, characterized in that, The data acquisition device also includes a parking timer module, which is used to acquire parking duration; if the power control module receives the ignition status signal as not ignited, it also sends an acquisition command signal to the parking timer module, which acquires the parking duration and transmits it to the power control module. in If the power control module determines that the parking time is greater than or equal to a time threshold, it controls the switch to open to disconnect the battery from the electrical center.

8. The vehicle power control system according to any one of claims 1-7, characterized in that, The acquisition device includes a collision sensor for acquiring vehicle collision signals; wherein If the power control module receives the ignition status signal indicating that the ignition has been activated and also receives the collision signal, the power control module controls the switch to open to disconnect the power supply from the electrical center.

9. The vehicle power control system as described in claim 8, characterized in that, The power source also includes a backup battery, which is connected to the generator, the power control module, the vehicle controller, and the door locks, respectively, and the generator can charge the backup battery; wherein If the power control module receives the ignition status signal indicating that the vehicle is ignited and also receives the collision signal, the power control module further controls the backup battery to supply power to the vehicle controller and the door lock.

10. A vehicle, characterized in that, The vehicle includes a vehicle power control system as described in any one of claims 1-9.

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