Charging management method, anti-feed system, vehicle control device and vehicle

Abstract

The invention relates to a charging management method, an anti-feed system, a vehicle control device and a vehicle. The charging management method comprises the steps that in the flameout state of a vehicle, whether a low-voltage battery system needs to be charged or not is judged according to data information, obtained regularly, of the low-voltage battery system of the vehicle; under the condition that the low-voltage battery system needs to be charged, a power supply system of the vehicle is controlled to charge the low-voltage battery system; and under the condition that the low-voltage battery system does not need to be charged, the vehicle is controlled to enter a dormant state. According to the application of the charging management method, when the vehicle is in a long-time flameout state, part of intelligent functions of the vehicle are still available, such as vehicle remote control, a sentry mode, vehicle machine software cloud upgrading and the like. And in addition, it is also ensured that a driver and passengers can be smoothly started and powered on when needing to use the vehicle, and the stability and practicability of the vehicle in the using process and the using experience of the driver and passengers are ensured.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular to a charging management method, an anti-feeding system, a vehicle control device and a vehicle. Background Art

[0002] Under the background of the global "dual carbon" goal, my country's automobile industry is developing steadily and rapidly towards electrification and intelligence. Among them, the vehicle charging system is an important part of electrification and intelligence. Existing hybrid vehicles are equipped with high-voltage power batteries and low-voltage batteries. Among them, the high-voltage power battery provides power output for the whole vehicle, while the low-voltage battery is responsible for supplying power to the low-voltage load before the high-voltage system is powered on, waking up the vehicle network and various controllers, etc. When the car is turned off, the high-voltage power battery is powered off, but the entire low-voltage system is not completely powered off, because all kinds of sensors in the vehicle are continuously consuming power. At the same time, with the development of automobile intelligence, there are more and more low-voltage power consumption conditions after the engine is turned off, such as vehicle remote control systems, vehicle sentry mode, software cloud upgrades, etc. Therefore, the power consumption of smart cars on the market after the engine is turned off is almost twice that of traditional non-smart cars.

[0003] The current charging management method for low-voltage batteries is mainly to convert high voltage electricity into low voltage electricity through a DC-DC converter and supply it to the low-voltage battery after the high-voltage power battery is powered on when the vehicle is started, so as to charge the low-voltage battery. However, when the vehicle is turned off for a long time, the high-voltage power battery cannot charge the low-voltage battery in time, which will cause the low-voltage battery to be exhausted, resulting in problems such as low-voltage battery feeding. Once the low-voltage battery voltage of the vehicle is lower than a certain threshold, it will affect some functions of the vehicle when it is turned off, and the vehicle will not be able to start and power on normally, causing difficulties for users. Summary of the invention

[0004] The present application provides a charging management method, an anti-feeding system, a vehicle control device and a vehicle to solve some or all of the deficiencies in the related art.

[0005] In a first aspect, the present application provides a charging management method applicable to a vehicle, comprising:

[0006] When the vehicle is turned off, judging whether the low-voltage battery system needs to be charged according to the data information of the low-voltage battery system of the vehicle acquired at regular intervals;

[0007] When the low-voltage battery system needs to be charged, controlling the power supply system of the vehicle to charge the low-voltage battery system;

[0008] When the low-voltage battery system does not need to be charged, the vehicle is controlled to enter a dormant state.

[0009] Optionally, when the low-voltage battery system needs to be charged, controlling the power supply system of the vehicle to charge the low-voltage battery system includes:

[0010] When the low-voltage battery system needs to be charged, determining whether the power supply system is available;

[0011] When the power supply system is available, controlling the power supply system to charge the low-voltage battery system;

[0012] When the power supply system is unavailable, the vehicle is controlled to enter a dormant state.

[0013] Optionally, the power supply system includes a high-voltage battery system and a power system. When the low-voltage battery system needs to be charged, the power supply system of the vehicle is controlled to charge the low-voltage battery system, and further includes:

[0014] determining whether the high-voltage battery system is available;

[0015] When the high-voltage battery system is available, controlling the high-voltage battery system to charge the low-voltage battery system;

[0016] In the case where the high-voltage battery system is unavailable, determining whether the power system is available;

[0017] When the power system is available, controlling the power system to charge the low-voltage battery system;

[0018] When the power system is unavailable, the vehicle is controlled to enter a dormant state.

[0019] Optionally, the vehicle includes a high-voltage charging box, the high-voltage charging box includes a DC-DC converter, the high-voltage battery system includes a relay, and the relay is electrically connected to the DC-DC converter. The controlling the high-voltage battery system to charge the low-voltage battery system includes:

[0020] The relay is controlled to close so that the power of the high-voltage battery system is converted into low-voltage power through the DC-DC converter and transmitted to the low-voltage battery system.

[0021] Optionally, the vehicle includes a high-voltage charging box, the high-voltage charging box includes a DC-DC converter, the power system includes an engine and a generator, and the generator is electrically connected to the DC-DC converter. The controlling the power system to charge the low-voltage battery system includes:

[0022] The engine is controlled to start and to supply energy to the generator, so that the generator generates electricity and the high voltage electricity generated by the generator is converted into low voltage electricity through the DC-DC converter and transmitted to the low voltage battery system.

[0023] Optionally, judging whether the low-voltage battery system needs to be charged according to the data information of the low-voltage battery system of the vehicle acquired at regular intervals includes:

[0024] Activated in response to a first wake-up signal from a vehicle dynamics control system, and receiving the data information collected by the collection module activated in response to a second wake-up signal;

[0025] According to the data information, it is determined whether the low-voltage battery system needs to be charged.

[0026] Optionally, controlling the vehicle to enter a dormant state includes:

[0027] In response to a sleep signal from a vehicle gateway module of the vehicle, the power supply system and the low-voltage battery system are controlled to be powered off.

[0028] Optionally, the power supply system of the vehicle is controlled to charge the low-voltage battery system, further comprising:

[0029] Determining whether the low-voltage battery system has completed charging according to the current data information of the low-voltage battery system during the charging process;

[0030] When the low-voltage battery system is fully charged, the vehicle is controlled to enter a dormant state.

[0031] Optionally, the data information includes at least one of a voltage value and a power value of the low-voltage battery system. When the low-voltage battery system is fully charged, controlling the vehicle to enter a dormant state includes:

[0032] When the voltage value is higher than the voltage upper limit threshold or the power value is higher than the power upper limit threshold, the power supply system and the low-voltage battery system are controlled to be powered off.

[0033] Optionally, the data information includes at least one of a voltage value and a power value of the low-voltage battery system. When the low-voltage battery system needs to be charged, controlling the power supply system of the vehicle to charge the low-voltage battery system includes:

[0034] When the voltage value is lower than the voltage lower limit threshold or the power value is lower than the power lower limit threshold, the power supply system is controlled to charge the low-voltage battery system.

[0035] In a second aspect, the present application also provides an anti-feedback system for a vehicle, comprising: a power supply system, a collection module and a vehicle controller, wherein the vehicle controller is electrically connected to the power supply system and the collection module.

[0036] The acquisition module is used to regularly collect data information of the low-voltage battery system of the vehicle and send it to the vehicle controller when the vehicle is turned off.

[0037] The vehicle controller is used to determine whether the low-voltage battery system needs to be charged according to the data information. If the low-voltage battery system needs to be charged, the power supply system is controlled to charge the low-voltage battery system. If the low-voltage battery system has completed charging or does not need to be charged, the vehicle is controlled to enter a dormant state.

[0038] Optionally, the vehicle controller is also used for:

[0039] When the low-voltage battery system needs to be charged, determine whether the power supply system is available; when the power supply system is available, control the power supply system to charge the low-voltage battery system; when the power supply system is unavailable, control the vehicle to enter a sleep state.

[0040] Optionally, the power supply system includes a high-voltage battery system and a power system, and the high-voltage battery system and the power system are electrically connected to the vehicle controller respectively.

[0041] The vehicle controller is also used for:

[0042] Determine whether the high-voltage battery system is available; if the high-voltage battery system is available, control the high-voltage battery system to charge the low-voltage battery system; if the high-voltage battery system is not available, determine whether the power system is available; if the power system is available, control the power system to charge the low-voltage battery system; if the power system is not available, control the vehicle to enter a dormant state.

[0043] Optionally, the anti-feedback system further includes a high-voltage charging box. The high-voltage charging box is electrically connected to the vehicle controller, the high-voltage battery system, and the power system. The electric energy generated by the high-voltage battery system and the power system is transmitted to the low-voltage battery system through the high-voltage charging box.

[0044] Optionally, the power system includes an engine and a generator, and the generator is electrically connected to the high-voltage charging box. The engine is used to supply energy to the generator, and the electrical energy generated by the generator is transmitted to the low-voltage battery system through the high-voltage charging box.

[0045] Optionally, the anti-feedback system further includes: a real-time clock, a vehicle dynamic control system, and a vehicle gateway module. The real-time clock is electrically connected to the vehicle dynamic control system, and the vehicle gateway module is electrically connected to the acquisition module, the vehicle controller, and the vehicle dynamic control system, respectively.

[0046] Wherein, the real-time clock is used to regularly wake up the vehicle dynamic control system.

[0047] The vehicle dynamic control system is used to wake up the vehicle controller and the vehicle gateway module after being awakened.

[0048] The vehicle gateway module is used to wake up the acquisition module after being awakened, and send a sleep signal to the vehicle controller when the low-voltage battery system does not need to be charged.

[0049] In a third aspect, the present application further provides a vehicle control device, comprising: a processor and a memory. The memory is used to store executable instructions of the processor. The processor is configured to execute the charging management method as described in the first aspect.

[0050] In a fourth aspect, the present application further provides a vehicle, comprising: the vehicle control device as described in the third aspect; and / or, the anti-feeding system as described in the second aspect.

[0051] The technical solution provided by the embodiments of the present application may have the following beneficial effects:

[0052] It can be seen from the above embodiments that the setting of the charging management method of the present application enables the vehicle controller to judge the current state of the low-voltage battery system based on the data information of the low-voltage battery system obtained by the acquisition module when the vehicle is in the off state. If the power of the low-voltage battery system is too low, the vehicle controller will control the power supply system to charge the low-voltage battery system. The application of this charging management method allows some of the intelligent functions of the vehicle to be still available when the vehicle is off for a long time, such as: vehicle remote control, sentry mode, car software cloud upgrade and other functions. It also ensures that the driver and passengers can start and power on smoothly when they need to use the vehicle, ensuring the stability and practicality of the vehicle during use, as well as the user experience of the driver and passengers.

[0053] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0055] Figure 1 This is a system framework diagram of an anti-feeding system in an embodiment of the present application;

[0056] Figure 2 This is a flow chart of a charging management method in one embodiment of the present application.

[0057] Description of reference numerals:

[0058] Anti-feedback system 1, vehicle controller 11, acquisition module 12, low-voltage battery system 13, high-voltage battery system 14, high-voltage battery control module 141, power system 15, engine 151, engine control module 1511, generator 152, generator control module 1521, high-voltage charging box 16, DC-DC converter 161, charging box control module 162, on-board charger 163, real-time clock 17, vehicle dynamic control system 18, vehicle gateway module 19. DETAILED DESCRIPTION

[0059] Here, the technical solutions in the embodiments (or "implementations") of the present application will be described clearly and completely in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0060] If there are terms involving directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance.

[0061] like Figure 1 As shown, the present application provides an anti-feeding system 1, comprising: a vehicle controller 11, a power supply system and a collection module 12, and the vehicle controller 11 is electrically connected to the power supply system and the collection module 12.

[0062] The acquisition module 12 is used to regularly acquire data information of the low-voltage battery system 13 of the vehicle and send it to the vehicle controller 11 when the vehicle is turned off.

[0063] The vehicle controller 11 is used to determine whether the low-voltage battery system 13 needs to be charged based on the data information. If the low-voltage battery system 13 needs to be charged, the power supply system is controlled to charge the low-voltage battery system 13. If the low-voltage battery system 13 has completed charging or does not need to be charged, the vehicle is controlled to enter a dormant state.

[0064] It can be seen from the above embodiments that the anti-feedback system 1 of the present application can obtain data information of the low-voltage battery system 13 through the acquisition module 12 at regular intervals when the vehicle is in the off state, and rely on the vehicle controller 11 to judge whether the current state of the low-voltage battery system needs to be charged based on the data information obtained by the acquisition module 12. If the power of the low-voltage battery system is too low, the vehicle controller 11 will control the power supply system to charge the low-voltage battery system. The setting of the anti-feedback system 1 makes it possible for some of the intelligent functions of the vehicle to be still available when the vehicle is off for a long time, such as: vehicle remote control, sentry mode, vehicle software cloud upgrade and other functions. It also ensures that the driver and passengers can start and power on smoothly when they need to use the vehicle, ensuring the stability and practicality of the vehicle during use, as well as the user experience of the driver and passengers.

[0065] In an optional embodiment, the vehicle controller 11 is also used to: when the low-voltage battery system 13 needs to be charged, determine whether the power supply system is available; when the power supply system is available, control the power supply system to charge the low-voltage battery system 13; when the power supply system is unavailable, control the vehicle to enter a sleep state.

[0066] Before charging the low-voltage battery system 13, the vehicle controller 11 will give priority to detecting whether the vehicle's power supply system is available. If the vehicle's power supply system is exhausted, the system is damaged, the temperature is too high, etc., the vehicle controller 11 will determine that the power supply system cannot supply power normally, and will therefore directly control the vehicle to enter a dormant state. It can be seen that the anti-feedback system 1 of the present application effectively avoids the situation where the power supply system is still powered on when the vehicle is turned off and the power supply system fails, effectively ensuring the safety of the vehicle during use and after the engine is turned off, and can also indirectly remind the driver and passengers that a fault has occurred, ensuring the user experience of the driver and passengers.

[0067] In an optional embodiment, the power supply system includes a high-voltage battery system 14 and a power system 15 , and the high-voltage battery system 14 and the power system 15 are electrically connected to the vehicle controller 11 , respectively.

[0068] The vehicle controller 11 is also used to: determine whether the high-voltage battery system 14 is available; if the high-voltage battery system 14 is available, control the high-voltage battery system 14 to charge the low-voltage battery system 13; if the high-voltage battery system 14 is not available, determine whether the power system 15 is available; if the power system 15 is available, control the power system 15 to charge the low-voltage battery system 13; if the power system 15 is not available, control the vehicle to enter a sleep state.

[0069] The anti-feedback system 1 can detect the available state of the high-voltage battery system 14, comprehensively consider the temperature, power, fault state and other factors of the high-voltage battery system 14, and judge the available state of the high-voltage battery system 14. Similarly, it can also comprehensively consider various factors of the power system 15 and judge the available state of the power system 15. It can be seen that the setting of the anti-feedback system 1 effectively improves the autonomy and safety of the vehicle in the off state.

[0070] The high-voltage battery system 14 includes a high-voltage battery control module 141, and the vehicle controller 11 is electrically connected to the high-voltage battery control module 141. The vehicle controller 11 sends an electrical signal to the high-voltage battery control module 141 to control the opening and closing of the high-voltage battery system 14 through the high-voltage battery control module 141, and then controls the high-voltage battery system 14 to charge the low-voltage battery system 13.

[0071] In existing hybrid vehicles, the high-voltage battery system 14 is used to provide power output for the entire vehicle, while the power system 15 is used to continue to provide power output for the entire vehicle and charge the battery system of the entire vehicle when the power of the high-voltage battery system 14 is low. Therefore, in the anti-feedback system 1 of the present application, the high-voltage battery system 14 responds to the charging signal of the vehicle controller 11 first, thereby charging the low-voltage battery system 13. When the high-voltage battery system 14 is exhausted or fails, the power system 15 responds to the control signal of the vehicle controller 11, and then charges the low-voltage battery system 13, and can also replenish a certain amount of power for the high-voltage battery system 14. It can be seen that the anti-feedback system 1 of the present application effectively prevents the battery system from feeding the vehicle, thereby preventing it from starting normally, thereby ensuring the autonomy, intelligence, practicality of the vehicle and the user experience of the driver and passengers.

[0072] In an optional embodiment, the anti-feedback system 1 further includes a high-voltage charging box 16. The high-voltage charging box 16 is electrically connected to the vehicle controller 11, the high-voltage battery system 14, and the power system 15. The electric energy generated by the high-voltage battery system 14 and the power system 15 is transmitted to the low-voltage battery system 13 through the high-voltage charging box 16.

[0073] Among them, as recorded above, the vehicle controller 11 sends a control signal to the high-voltage battery control module 141, and the high-voltage battery control module 141 closes the relay based on the control signal sent by the vehicle controller 11, so that the electric energy of the high-voltage battery system 14 is transmitted to the low-voltage battery system 13 through the high-voltage charging box 16, thereby charging the low-voltage battery system 13. It can be seen that in the anti-feedback system 1 of the present application, the power supply of the power supply system needs to go through multiple insurances, and the power supply system is started for charging only when safety is ensured. Such a charging method effectively ensures the safety of the whole vehicle and the stability during the charging process, and can also indirectly optimize the charging and discharging process of the vehicle power system 15, further improve the service life of the vehicle power system 15, and improve the vehicle experience of the driver and passengers.

[0074] In an optional embodiment, the power system 15 includes an engine 151 and a generator 152, and the generator 152 is electrically connected to the high-voltage charging box 16. The engine 151 is used to power the generator 152, and the electric energy generated by the generator 152 is transmitted to the low-voltage battery system 13 through the high-voltage charging box 16.

[0075] As described above, the anti-feedback system 1 can detect the available state of the power system 15, comprehensively consider factors such as the temperature and fault state of the engine 151 and the generator 152, and judge the available state of the power system 15, thereby improving the autonomy and safety of the vehicle in the off state.

[0076] The engine 151 further includes an engine control module 1511, and the generator 152 further includes a generator control module 1521. The vehicle controller 11 sends an electrical signal to the engine control module 1511, thereby starting the engine 151 through the engine control module 1511 to supply energy to the generator 152. Similarly, the vehicle controller 11 sends an electrical signal to the generator control module 1521, thereby controlling the start and stop of the generator 152 through the generator control module 1521, and then controlling the generator 152 to charge the low-voltage battery system 13.

[0077] It can be seen that if the vehicle controller 11 detects that the high-voltage battery system 14 cannot supply power, it will send a control signal to the engine control module 1511 and the generator control module 1521, and the generator 152 is powered by the operation of the engine 151, so that the generator 152 outputs electrical energy to the battery system of the vehicle. This charging management method fully utilizes the power system 15 of the vehicle and ensures that the low-voltage battery system 13 is charged with better feedback efficiency.

[0078] In addition, from Figure 1It can be seen that the high-voltage charging box 16 also includes a DC-DC converter 161, a charging box control module 162, and an on-board charger 163. Among them, the DC-DC converter 161 is used to convert the high-voltage electricity generated by the power supply system into low-voltage electricity and supply it to the low-voltage battery system 13. The charging box control module 162 is used to receive the control signal sent by the vehicle controller 11, and control the opening and closing of the high-voltage charging box 16 according to the signal. The on-board charger 163 is used to charge the high-voltage battery system 14 when the generator 152 is powered.

[0079] In an optional embodiment, the anti-feed system 1 further includes: a real-time clock 17, a vehicle dynamic control system 18, and a vehicle gateway module 19. The real-time clock 17 is electrically connected to the vehicle dynamic control system 18, and the vehicle gateway module 19 is electrically connected to the acquisition module 12, the vehicle controller 11, and the vehicle dynamic control system 18, respectively.

[0080] The real-time clock 17 is used to wake up the vehicle dynamic control system 18 at a regular time.

[0081] The vehicle dynamic control system 18 is used to wake up the vehicle controller 11 and the vehicle gateway module 19 after being awakened.

[0082] The vehicle gateway module 19 is used to wake up the acquisition module 12 after being awakened, and to send a sleep signal to the vehicle controller 11 when the low-voltage battery system 13 does not need to be charged. Specifically, when the voltage value of the low-voltage battery system 13 is lower than the voltage lower limit threshold or the power value is lower than the power lower limit threshold, it is judged that the low-voltage battery system 13 needs to be charged. When the voltage value of the low-voltage battery system 13 is not lower than the voltage lower limit threshold or the power value is not lower than the power lower limit threshold, or when the voltage value of the low-voltage battery system 13 is higher than the voltage upper limit threshold or the power value is higher than the power upper limit threshold, it is judged that the low-voltage battery system 13 does not need to be charged, and the vehicle controller 11 controls the power supply system and the low-voltage battery system 13 to power off.

[0083] Among them, the vehicle dynamic control system 18 relies on the real-time clock 17 to periodically send a first wake-up signal to the vehicle controller 11, and at the same time send a second wake-up signal to the acquisition module 12. After being awakened, the latter collects data information of the low-voltage battery system 13 and sends it to the vehicle controller 11, and then judges the current state of the low-voltage battery system 13. It can be seen that the anti-feedback system 1 of the present application makes the vehicle's wake-up, detection, judgment and other processes have the characteristics of high efficiency and high quality.

[0084] In an optional embodiment, the first wake-up signal may be a CAN line wake-up frame, and the second wake-up signal may be a LIN line wake-up frame.

[0085] In actual application, the real-time clock 17 will wake up the vehicle dynamic control system 18 every 12 hours to monitor and upload data of the vehicle's high-voltage system. After this process is completed, the vehicle dynamic control system 18 will send a first wake-up signal and a second wake-up signal. Of course, in an optional embodiment, the interval wake-up time of the real-time clock 17 can be set accordingly according to the actual power consumption, working conditions and special needs of different vehicles, such as: set to an interval of 11 hours, 10 hours, 9 hours or shorter; it can also be set to an interval of 13 hours, 14 hours, 15 hours or longer. Therefore, this application does not limit this.

[0086] In an optional embodiment, the modules of the anti-feed system 1 are connected by a communication bus to ensure high-speed, large-scale and reliable data transmission. The high-voltage charging box 16 and the low-voltage battery system 13 are connected by a low-voltage wiring harness, which is responsible for transmitting low-voltage electrical energy and control signals, and has a high degree of safety and reliability. The three high-voltage components of the high-voltage battery system 14, the power system 15 and the high-voltage charging box 16 are connected by a high-voltage wiring harness, which is responsible for transmitting high-voltage electrical energy. It can be seen that the anti-feed system 1 of the present application fully considers the electrical, mechanical and environmental performance, and ensures the safety and stability of the high and low voltage systems.

[0087] In actual use, the working principle of the anti-feedback system 1 is as follows:

[0088] After the vehicle is turned off, the real-time clock 17 wakes up the vehicle dynamic control system 18 at a fixed time, and the vehicle dynamic control system 18 then monitors the status of the entire high-voltage system of the vehicle and uploads data. At the same time, the vehicle dynamic control system 18 sends a wake-up signal to the vehicle controller 11, the vehicle gateway module 19 and the high-voltage battery control module 141. When the vehicle gateway module 19 is awakened, it will send a wake-up signal to the acquisition module 12, and then collect data information of the low-voltage battery system 13.

[0089] The vehicle controller 11 receives the data information detected by the acquisition module 12 and makes a judgment: when the voltage value of the low-voltage battery system 13 is lower than the voltage lower limit threshold or the power value is lower than the power lower limit threshold, it is judged that the low-voltage battery system 13 needs to be charged. At this time, the vehicle controller 11 will send a wake-up signal to the remaining modules of the anti-feedback system 1, comprehensively consider the temperature, power, fault status and other factors of the high-voltage battery system 14 and the power system 15, judge the available status of the high-voltage battery system 14 and the power system 15, and then control the high-voltage battery system 14 or the power system 15 to charge the low-voltage battery system 13. If the vehicle controller 11 detects that the high-voltage battery system 14 and the power system 15 are unavailable, it will control the power supply system and the low-voltage battery system 13 to power off in turn.

[0090] When the voltage value of the low-voltage battery system 13 is not lower than the voltage lower limit threshold or the power value is not lower than the power lower limit threshold, or when the voltage value of the low-voltage battery system 13 is higher than the voltage upper limit threshold or the power value is higher than the power upper limit threshold, it is judged that the low-voltage battery system 13 does not need to be charged, and the vehicle controller 11 controls the power supply system and the low-voltage battery system 13 to power off.

[0091] During the whole process, the anti-feedback system 1 completely autonomously performs the tasks of awakening, collecting, detecting, judging, monitoring, charging and sleeping, etc., and realizes the anti-feedback of the vehicle battery system under the premise of ensuring the safety and stability of each component of the vehicle, so that some of the intelligent functions of the vehicle are still available when the vehicle is turned off for a long time, such as: vehicle remote control, sentry mode, vehicle software cloud upgrade, etc. It also ensures that the driver and passengers can start and power on smoothly when they need to use the vehicle, improving the intelligence, stability, practicality of the vehicle during use and the user experience of the driver and passengers.

[0092] At the same time, the present application also provides a vehicle, which includes the anti-feeding system 1 as described above.

[0093] After the vehicle is turned off, the vehicle controller 11 can be woken up at a fixed time and the status information of the low-voltage battery system 13 can be detected, so that the low-voltage battery system 13 can be charged in time when the power is low. It can be seen that through the application of the anti-feed system 1, the vehicle effectively avoids the situation where the low-voltage battery system 13 is exhausted due to the long flameout time, thereby causing the vehicle to be unable to start, etc., effectively improving the practicality, intelligence and user experience of the vehicle.

[0094] In addition, if Figure 2 As shown, the present application also provides a charging management method applicable to the vehicle, which is executed by the vehicle controller 11 described above. The charging management method includes:

[0095] S1. When the vehicle is turned off, determine whether the low-voltage battery system 13 needs to be charged based on the data information of the low-voltage battery system 13 of the vehicle acquired at regular intervals; wherein the data information of the low-voltage battery system 13 is acquired at regular intervals by the acquisition module 12 .

[0096] S2. When the low-voltage battery system 13 needs to be charged, the power supply system of the vehicle is controlled to charge the low-voltage battery system 13;

[0097] S3. When the low-voltage battery system 13 does not need to be charged, the vehicle is controlled to enter a dormant state.

[0098] In this charging management method, when the vehicle is in the off state, the vehicle controller 11 judges the current state of the low-voltage battery system 13 based on the data information of the low-voltage battery system 13 acquired by the acquisition module 12. If the power of the low-voltage battery system 13 is too low, the vehicle controller 11 will control the power supply system to charge the low-voltage battery system 13. The application of this charging management method allows some of the intelligent functions of the vehicle to be still available when the vehicle is off for a long time, such as: vehicle remote control, sentry mode, vehicle software cloud upgrade and other functions. It also ensures that the driver and passengers can start and power on the vehicle smoothly when they need to use it, ensuring the stability and practicality of the vehicle during use, as well as the user experience of the driver and passengers.

[0099] In an optional embodiment, in S2, when the low-voltage battery system 13 needs to be charged, controlling the power supply system of the vehicle to charge the low-voltage battery system 13 may include:

[0100] S21, when the low-voltage battery system 13 needs to be charged, determining whether the power supply system is available;

[0101] S22, when the power supply system is available, controlling the power supply system to charge the low-voltage battery system 13;

[0102] S23: When the power supply system is unavailable, the vehicle is controlled to enter a dormant state.

[0103] Before charging the low-voltage battery system 13, the vehicle controller 11 will first detect whether the vehicle's power supply system is available. If the vehicle's power supply system is exhausted, the system is damaged, the temperature is too high, etc., the vehicle controller 11 will determine that the power supply system cannot supply power normally, and will directly control the vehicle to enter a dormant state. It can be seen that the application of this charging management method effectively avoids the situation where the power supply system is still powered on when the vehicle is turned off and the power supply system fails, effectively ensuring the safety of the vehicle during use and after the engine is turned off, and can also indirectly remind the driver and passengers that a fault has occurred, ensuring the user experience of the driver and passengers.

[0104] In an optional embodiment, the power supply system includes a high-voltage battery system 14 and a power system 15. In S2, when the low-voltage battery system 13 needs to be charged, the power supply system of the vehicle is controlled to charge the low-voltage battery system 13, and may also include:

[0105] S201, determining whether the high-voltage battery system 14 is available;

[0106] S202. When the high-voltage battery system 14 is available, the high-voltage battery system 14 is controlled to charge the low-voltage battery system 13. The vehicle controller 11 sends a control signal to the high-voltage battery control module 141, and the high-voltage battery control module 141 controls the opening and closing of the high-voltage battery system 14.

[0107] S203, when the high-voltage battery system 14 is unavailable, determining whether the power system 15 is available;

[0108] S204, when the power system 15 is available, controlling the power system 15 to charge the low-voltage battery system 13;

[0109] S205: When the power system 15 is unavailable, the vehicle is controlled to enter a dormant state.

[0110] In existing hybrid vehicles, the high-voltage battery system 14 is used to provide power output for the entire vehicle, while the power system 15 is used to continue to provide power output for the entire vehicle and charge the battery system of the entire vehicle when the power of the high-voltage battery system 14 is low. Therefore, in this charging management method, the high-voltage battery system 14 responds to the charging signal of the vehicle controller 11 first, thereby charging the low-voltage battery system 13. When the high-voltage battery system 14 is exhausted or fails, the power system 15 responds to the control signal of the vehicle controller 11, and then charges the low-voltage battery system 13, and can also replenish a certain amount of power for the high-voltage battery system 14. It can be seen that the application of this charging management method effectively prevents the battery system from feeding the vehicle and thus failing to start normally, thereby ensuring the autonomy, intelligence, practicality of the vehicle and the user experience of the driver and passengers.

[0111] In an optional embodiment, the high-voltage battery system 14 includes a relay, and the relay is electrically connected to the DC-DC converter 161 described above. In S202, when the high-voltage battery system 14 is available, the high-voltage battery system 14 is controlled to charge the low-voltage battery system 13, specifically including:

[0112] The control relay is closed so that the power of the high-voltage battery system 14 is converted into low-voltage power through the DC-DC converter 161 and transmitted to the low-voltage battery system 13 .

[0113] Among them, as recorded above, the vehicle controller 11 sends a control signal to the high-voltage battery control module 141, and the high-voltage battery control module 141 closes the relay based on the control signal sent by the whole controller, so that the electric energy of the high-voltage battery system 14 is transmitted to the low-voltage battery system 13 through the high-voltage charging box 16, thereby charging the low-voltage battery system 13. It can be seen that in this charging management method, the power supply of the power supply system needs to go through multiple insurances, and the power supply system is started for charging only when safety is ensured. Such a charging method effectively ensures the safety of the whole vehicle and the stability during the charging process, and can also indirectly optimize the charging and discharging process of the vehicle power system 15, further improve the service life of the vehicle power system 15, and improve the driving experience of the driver and passengers.

[0114] In an optional embodiment, in S204, when the power system 15 is available, controlling the power system 15 to charge the low-voltage battery system 13 specifically includes:

[0115] The engine 151 is controlled to start and supply energy to the generator 152, so that the generator 152 generates electricity and converts the high voltage electricity generated by the generator 152 into low voltage electricity through the DC-DC converter 161, and transmits it to the low voltage battery system 13. The start and stop of the engine 151 and the generator 152 are executed by the engine control module 1511 and the generator control module 1521.

[0116] It can be seen that if the vehicle controller 11 detects that the high-voltage battery system 14 cannot supply power, it will send a control signal to the engine control module 1511 and the generator control module 1521, and the generator 152 is powered by the operation of the engine 151, so that the generator 152 outputs electrical energy to the battery system of the vehicle. This charging management method fully utilizes the power system 15 of the vehicle and ensures that the low-voltage battery system 13 is charged with better feedback efficiency.

[0117] In an optional embodiment, in S1, when the vehicle is turned off, judging whether the low-voltage battery system 13 needs to be charged according to the data information of the low-voltage battery system 13 of the vehicle acquired at regular intervals may further include:

[0118] S11, starting in response to a first wake-up signal from the vehicle dynamics control system 18, and receiving data information collected by the collection module 12 started in response to a second wake-up signal;

[0119] S12. Determine whether the low-voltage battery system 13 needs to be charged based on the data information.

[0120] Among them, the vehicle dynamic control system 18 relies on the real-time clock 17 to regularly send a first wake-up signal to the vehicle controller 11, and at the same time send a second wake-up signal to the acquisition module 12. After being awakened, the latter collects data information of the low-voltage battery system 13 and sends it to the vehicle controller 11, and then judges the current state of the low-voltage battery system 13. It can be seen that the application of this charging management method makes the vehicle's wake-up, detection, judgment and other processes all have the characteristics of high efficiency and high quality.

[0121] In actual application, the real-time clock 17 will wake up the vehicle dynamic control system 18 every 12 hours to monitor and upload data of the vehicle's high-voltage system. After this process is completed, the vehicle dynamic control system 18 will send a first wake-up signal and a second wake-up signal. Of course, in an optional embodiment, the interval wake-up time of the real-time clock 17 can be set accordingly according to the actual power consumption, working conditions and special needs of different vehicles, such as: set to an interval of 11 hours, 10 hours, 9 hours or shorter; it can also be set to an interval of 13 hours, 14 hours, 15 hours or longer. Therefore, this application does not limit this.

[0122] In an optional embodiment, in S3, when the low-voltage battery system 13 does not need to be charged, the vehicle is controlled to enter a dormant state, specifically including:

[0123] In response to a sleep signal from the vehicle gateway module 19 of the vehicle, the power supply system and the low-voltage battery system 13 are controlled to be powered off.

[0124] Among them, the first wake-up signal sent by the vehicle dynamic control system 18 will wake up the vehicle gateway module 19 while waking up the vehicle controller 11. When the vehicle controller 11 determines that the low-voltage battery system 13 does not need to be charged, it will send the determination information to the vehicle gateway module 19, and the vehicle gateway module 19 will then feedback the sleep command to the vehicle controller 11 and the acquisition module 12 and other components, thereby controlling the power supply system and the low-voltage battery system 13 to power off, that is, controlling the vehicle to enter a sleep state. It is worth mentioning that before the vehicle goes into sleep, the vehicle dynamic control system 18 will prioritize uploading the vehicle's flameout monitoring data before entering a sleep state. It can be seen that the charging management method can further optimize the vehicle's information collection, flameout status management and other processes, and thereby complete the battery system's anti-feedback process more finely and efficiently.

[0125] In an optional embodiment, in S2, when the low-voltage battery system 13 needs to be charged, the power supply system of the vehicle is controlled to charge the low-voltage battery system 13, which may also include:

[0126] S24, judging whether the low-voltage battery system 13 has completed charging according to the current data information of the low-voltage battery system 13 during the charging process;

[0127] S25. When the low-voltage battery system 13 has completed charging, the vehicle is controlled to enter a dormant state.

[0128] During the charging process of the low-voltage battery system 13, the acquisition module 12 will monitor the current data information of the low-voltage battery system 13 in real time, and determine whether the low-voltage battery system 13 has completed charging based on the current data information, and disconnect the power transmission in time, thereby effectively charging and protecting the low-voltage battery system 13 and avoiding overcharging, effectively ensuring the safety of the vehicle and improving the service life of the entire battery system.

[0129] In an optional embodiment, the data information includes at least one of the voltage value and the power value of the low-voltage battery system 13. In S25, when the low-voltage battery system 13 is fully charged, the vehicle is controlled to enter a dormant state, specifically including:

[0130] When the voltage value is higher than the voltage upper limit threshold or the power value is higher than the power upper limit threshold, the power supply system and the low-voltage battery system 13 are controlled to be powered off.

[0131] In actual application, the specific content of the data information can be set accordingly according to the actual working conditions and the needs of the driver and passengers, for example, the voltage, power, and other data of the low-voltage battery system 13 can be collected. Therefore, this application does not limit this.

[0132] In the optional embodiment described in this scheme, voltage is set as the specific content of the data information, and the voltage upper limit threshold is set. Therefore, during the charging process, when the voltage collected by the acquisition module 12 is greater than or equal to the voltage upper limit threshold, the vehicle controller 11 will disconnect the charging process. Of course, in another optional embodiment, the power can also be set as the specific content of the data information, and the power upper limit threshold can be set accordingly as the judgment basis of the vehicle controller 11, which will not be repeated here.

[0133] In an optional embodiment, in S2, when the low-voltage battery system 13 needs to be charged, the power supply system of the vehicle is controlled to charge the low-voltage battery system 13, specifically including:

[0134] When the voltage value is lower than the voltage lower limit threshold or the power value is lower than the power lower limit threshold, the power supply system is controlled to charge the low-voltage battery system 13 .

[0135] Similarly, in actual application, parameters such as the voltage lower limit threshold and the power lower limit threshold are set. When the voltage acquired by the acquisition module 12 is lower than the voltage lower limit threshold, or the power is lower than the power lower limit threshold, the vehicle controller 11 will determine that the low-voltage battery system 13 needs to be charged, and then control the power supply system to charge the low-voltage battery system 13.

[0136] In this solution, the voltage lower limit threshold is set to 13.5V, and the power lower limit threshold is set to 70% of the total power. The setting of the above data fully considers the power required for the vehicle network to wake up, the average low-voltage power consumption value every 12 hours when the vehicle is turned off, and the optimal efficiency range of the DC-DC converter 161, etc., providing a more efficient and high-quality charging solution for the battery system of the vehicle.

[0137] At the same time, in this solution, the voltage upper limit threshold is set to 15.2V, and the power upper limit threshold is set to 90% of the total power. The setting of the above data can effectively avoid overcharging of the battery and ensure the safety and service life of the low-voltage battery system 13. Of course, in other optional embodiments, the reference values ​​of voltage and power can be set accordingly according to the specific conditions of different vehicles and the specific needs of users, such as further lowering the lower limit threshold of voltage and power, or further raising the upper limit threshold, etc. Therefore, this solution does not limit this.

[0138] The embodiment of the present application also provides a vehicle control device, including a processor and a memory, the memory is used to store executable instructions of the processor, and the processor is configured to execute the above-mentioned charging management method. The vehicle control device can be the above-mentioned vehicle controller 11, and the specific details can be referred to the description of the above-mentioned relevant parts, which will not be repeated here.

[0139] In this way, the vehicle controller 11 of the vehicle can be used as the control subject to execute the charging management method provided in the embodiment of the present application. When the vehicle is in the off state, the vehicle controller 11 judges the current state of the low-voltage battery system 13 based on the data information of the low-voltage battery system 13 acquired by the acquisition module 12. If the power of the low-voltage battery system 13 is too low, the vehicle controller 11 will control the power supply system to charge the low-voltage battery system 13. The application of this charging management method allows some of the intelligent functions of the vehicle to be still available when the vehicle is off for a long time, such as: vehicle remote control, sentry mode, car software cloud upgrade and other functions. It also ensures that the driver and passengers can start and power on smoothly when they need to use the vehicle, ensuring the stability and practicality of the vehicle during use, as well as the user experience of the driver and passengers.

[0140] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without causing conflicts. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the drawings; all modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application should be included in the scope of protection of this application.

Claims

1. A charging management method, applicable to a vehicle, characterized in that: include: When the vehicle is turned off, judging whether the low-voltage battery system needs to be charged according to the data information of the low-voltage battery system of the vehicle acquired at regular intervals; When the low-voltage battery system needs to be charged, controlling the power supply system of the vehicle to charge the low-voltage battery system; When the low-voltage battery system does not need to be charged, the vehicle is controlled to enter a dormant state.

2. The charging management method according to claim 1, characterized in that: When the low-voltage battery system needs to be charged, controlling the power supply system of the vehicle to charge the low-voltage battery system includes: When the low-voltage battery system needs to be charged, determining whether the power supply system is available; When the power supply system is available, controlling the power supply system to charge the low-voltage battery system; When the power supply system is unavailable, the vehicle is controlled to enter a dormant state.

3. The charging management method according to claim 2, characterized in that: The power supply system includes a high-voltage battery system and a power system; When the low-voltage battery system needs to be charged, controlling the power supply system of the vehicle to charge the low-voltage battery system includes: determining whether the high-voltage battery system is available; When the high-voltage battery system is available, controlling the high-voltage battery system to charge the low-voltage battery system; In the case where the high-voltage battery system is unavailable, determining whether the power system is available; When the power system is available, controlling the power system to charge the low-voltage battery system; When the power system is unavailable, the vehicle is controlled to enter a dormant state.

4. The charging management method according to claim 3, characterized in that: The vehicle includes a high-voltage charging box, the high-voltage charging box includes a DC-DC converter, the high-voltage battery system includes a relay, and the relay is electrically connected to the DC-DC converter; The controlling the high-voltage battery system to charge the low-voltage battery system comprises: The relay is controlled to close so that the power of the high-voltage battery system is converted into low-voltage power through the DC-DC converter and transmitted to the low-voltage battery system.

5. The charging management method according to claim 3, characterized in that: The vehicle includes a high-voltage charging box, the high-voltage charging box includes a DC-DC converter, the power system includes an engine and a generator, and the generator is electrically connected to the DC-DC converter; The controlling the power system to charge the low-voltage battery system includes: The engine is controlled to start and to supply energy to the generator, so that the generator generates electricity and the high voltage electricity generated by the generator is converted into low voltage electricity through the DC-DC converter and transmitted to the low voltage battery system.

6. The charging management method according to claim 1, characterized in that: The determining whether the low-voltage battery system needs to be charged according to the data information of the low-voltage battery system of the vehicle acquired at regular intervals includes: Activated in response to a first wake-up signal from a vehicle dynamics control system, and receiving the data information collected by the collection module activated in response to a second wake-up signal; According to the data information, it is determined whether the low-voltage battery system needs to be charged.

7. The charging management method according to claim 1, characterized in that: The controlling the vehicle to enter a dormant state comprises: In response to a sleep signal from a vehicle gateway module of the vehicle, the power supply system and the low-voltage battery system are controlled to be powered off.

8. The charging management method according to claim 1, characterized in that: The power supply system of the vehicle is controlled to charge the low-voltage battery system, including: Determining whether the low-voltage battery system has completed charging according to the current data information of the low-voltage battery system during the charging process; When the low-voltage battery system is fully charged, the vehicle is controlled to enter a dormant state.

9. The charging management method according to claim 8, characterized in that: The data information includes at least one of a voltage value and a power value of the low-voltage battery system; When the low-voltage battery system is fully charged, controlling the vehicle to enter a dormant state includes: When the voltage value is higher than the voltage upper limit threshold or the power value is higher than the power upper limit threshold, the power supply system and the low-voltage battery system are controlled to be powered off.

10. The charging management method according to claim 1, characterized in that: The data information includes at least one of a voltage value and a power value of the low-voltage battery system; When the low-voltage battery system needs to be charged, controlling the power supply system of the vehicle to charge the low-voltage battery system includes: When the voltage value is lower than the voltage lower limit threshold or the power value is lower than the power lower limit threshold, the power supply system is controlled to charge the low-voltage battery system.

11. A power feeding prevention system applied to a vehicle, characterized in that: include: A power supply system, a collection module and a vehicle controller, wherein the vehicle controller is electrically connected to the power supply system and the collection module; The acquisition module is used to regularly collect data information of the low-voltage battery system of the vehicle and send it to the vehicle controller when the vehicle is turned off; The vehicle controller is used to determine whether the low-voltage battery system needs to be charged based on the data information; when the low-voltage battery system needs to be charged, control the power supply system to charge the low-voltage battery system; when the low-voltage battery system has completed charging or does not need to be charged, control the vehicle to enter a sleep state.

12. The anti-feeding system according to claim 11, characterized in that: The vehicle controller is also used for: When the low-voltage battery system needs to be charged, determining whether the power supply system is available; When the power supply system is available, controlling the power supply system to charge the low-voltage battery system; When the power supply system is unavailable, the vehicle is controlled to enter a dormant state.

13. The anti-feeding system according to claim 12, characterized in that: The power supply system includes a high-voltage battery system and a power system, and the high-voltage battery system and the power system are electrically connected to the vehicle controller respectively; The vehicle controller is also used for: determining whether the high-voltage battery system is available; When the high-voltage battery system is available, controlling the high-voltage battery system to charge the low-voltage battery system; In the case where the high-voltage battery system is unavailable, determining whether the power system is available; When the power system is available, controlling the power system to charge the low-voltage battery system; When the power system is unavailable, the vehicle is controlled to enter a dormant state.

14. The anti-feeding system according to claim 13, characterized in that: It also includes a high-voltage charging box; the high-voltage charging box is electrically connected to the vehicle controller, the high-voltage battery system and the power system; the electric energy generated by the high-voltage battery system and the power system is transmitted to the low-voltage battery system through the high-voltage charging box.

15. The anti-feeding system according to claim 14, characterized in that: The power system includes an engine and a generator, and the generator is electrically connected to the high-voltage charging box; the engine is used to supply energy to the generator, and the electric energy generated by the generator is transmitted to the low-voltage battery system through the high-voltage charging box.

16. The anti-feeding system according to claim 11, characterized in that: Also includes: Real-time clock, vehicle dynamic control system, vehicle gateway module; The real-time clock is electrically connected to the vehicle dynamic control system, and the vehicle gateway module is electrically connected to the acquisition module, the vehicle controller and the vehicle dynamic control system respectively; Wherein, the real-time clock is used to regularly wake up the vehicle dynamic control system; The vehicle dynamic control system is used to wake up the vehicle controller and the vehicle gateway module after being awakened; The vehicle gateway module is used to wake up the acquisition module after being awakened, and send a sleep signal to the vehicle controller when the low-voltage battery system does not need to be charged.

17. A vehicle control device, characterized in that: include: processor; A memory, configured to store executable instructions of the processor; The processor is configured to execute the charging management method as described in any one of claims 1-10.

18. A vehicle, characterized in that: include: The vehicle control device as claimed in claim 17; and / or The anti-feeding system according to any one of claims 11 to 16.

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