Vehicle control method and device, product and vehicle

Abstract

The invention provides a vehicle control method and device, a product and a vehicle, and belongs to the technical field of vehicle control. The method comprises the step of starting a battery water heater PTC and a battery water cooling unit used for cooling the power battery when the current battery temperature of the power battery and the current water outlet temperature of the battery water heater PTC meet the power consumption starting condition. The invention aims to improve the braking performance of regenerative braking on the premise of ensuring the performance of the power battery.

Description

Technical Field

[0001] This application relates to the technical field of vehicle control, and more specifically, to a vehicle control method, apparatus, product, and vehicle. Background Technology

[0002] In electric vehicle braking systems, regenerative braking, as a core technology for energy recovery, is usually used in conjunction with mechanical braking to meet the vehicle's braking requirements. When the power battery is in a high-charge state or the single-cell voltage is close to the upper limit threshold, the feedback current will be limited to prevent the risk of overcharging. At this time, mechanical braking bears the main braking torque. However, continuous mechanical braking is prone to thermal decay between the brake pads and brake discs, which weakens the braking force. Therefore, in order to reduce the load on mechanical braking and avoid the risk of thermal decay, how to improve the braking performance of regenerative braking while ensuring the performance of the power battery is an urgent problem to be solved. Summary of the Invention

[0003] This application provides a vehicle control method, device, product, and vehicle, aiming to improve the braking performance of regenerative braking while ensuring the performance of the power battery.

[0004] In a first aspect, embodiments of this application provide a vehicle control method, the method comprising: When the current battery temperature of the power battery and the current outlet temperature of the battery water heater PTC meet the power consumption start-up conditions, the battery water heater PTC and the battery water cooling unit used to cool the power battery are turned on.

[0005] Optionally, the power consumption activation condition is met when the current battery temperature is less than the battery temperature threshold and the current outlet temperature is less than the outlet temperature threshold.

[0006] Optionally, the method further includes: When the current battery temperature or the current water outlet temperature does not meet the power consumption start-up conditions, the current battery temperature of the power battery and the current water outlet temperature of the battery water heater PTC are continuously monitored.

[0007] Optionally, after turning on the battery water heater PTC and the battery water cooling unit, the method further includes: When the current battery temperature or the current outlet temperature does not meet the power consumption start-up conditions, or when no power consumption start-up command is received within a preset time, the corresponding shutdown process of the battery water heater PTC and the battery water cooling unit is executed.

[0008] Optionally, the shutdown process corresponding to the battery water cooling unit includes: Get the current temperature of the coolant; When the current temperature of the coolant meets the preset delayed shutdown condition, the battery water cooling unit is shut down after a delay.

[0009] Optionally, delaying the shutdown of the battery water cooling unit includes: When the delayed working time of the battery water cooling unit reaches the target time threshold, the battery water cooling unit is turned off.

[0010] Optionally, delaying the shutdown of the battery water cooling unit includes: When the current temperature of the coolant is detected to be lower than the preset shutdown temperature, the battery water cooling unit is shut down.

[0011] Optionally, after obtaining the current temperature of the coolant, the method further includes: When the current temperature of the coolant does not meet the preset delay shutdown condition, the battery water cooling unit is directly shut down.

[0012] Optionally, when the current temperature of the coolant is greater than or equal to a preset low temperature threshold, the current temperature of the coolant satisfies the delayed shutdown condition. When the current temperature of the coolant is lower than the low temperature threshold, the current temperature of the coolant does not meet the delayed shutdown condition.

[0013] Optionally, the battery water cooling unit includes an air conditioning assembly or a thermal management unit.

[0014] Secondly, embodiments of this application provide a vehicle control device, the device comprising: The power consumption activation module is used to activate the battery water heater PTC and the battery water cooling unit for cooling the power battery when the current battery temperature of the power battery and the current outlet temperature of the battery water heater PTC meet the power consumption activation conditions.

[0015] Thirdly, embodiments of this application provide an electronic device, including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the vehicle control method as described in the first aspect of the embodiments.

[0016] Fourthly, embodiments of this application provide a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the vehicle control method as described in the first aspect of the embodiments.

[0017] Fifthly, embodiments of this application provide a computer program product, including a computer program / instructions, which, when executed by a processor, implement the vehicle control method described in the first aspect of the embodiments.

[0018] Sixthly, embodiments of this application provide a vehicle for executing the vehicle control method described in the first aspect of the embodiment, or including the vehicle control device described in the second aspect of the embodiment.

[0019] Beneficial effects: In this method, when the current battery temperature of the power battery and the current outlet temperature of the battery water heater PTC meet the power consumption activation conditions, the battery water heater PTC and the battery water cooling unit are activated. The regenerative braking performance is improved by consuming electrical energy through the battery water heater PTC and the battery water cooling unit. At the same time, the activation of the battery water heater PTC and the battery water cooling unit is determined based on the battery temperature and the outlet temperature of the battery water heater PTC to avoid the performance degradation of the power battery due to the increase in battery temperature. The regenerative braking performance can be improved while ensuring the performance of the power battery. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a battery thermal management system proposed in an embodiment of this application; Figure 2 This is a schematic diagram of the circuit connection according to an embodiment of this application; Figure 3 This is a flowchart of the steps of a vehicle control method provided in an embodiment of this application; Figure 4 This is a flowchart of the steps of a vehicle control method proposed in an embodiment of this application; Figure 5 This is an execution flowchart of a vehicle control method proposed in an embodiment of this application; Figure 6 This is a functional block diagram of a vehicle control device provided in one embodiment of this application; Figure 7 This is a schematic diagram of an electronic device according to an embodiment of this application; Figure 8 This is a schematic diagram of a non-volatile readable storage medium proposed in an embodiment of this application; Figure 9 This is a schematic diagram of a computer program product proposed in an embodiment of this application. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0024] SOC: State of Charge, is a core parameter that measures the ratio of a battery's remaining usable capacity to its fully charged capacity, with a value ranging from 0 to 1 (equivalent to 0%-100%). PTC: Positive Temperature Coefficient. PTC usually refers to a positive temperature coefficient thermistor, or PTC thermistor for short. A PTC thermistor is a typical temperature-sensitive semiconductor resistor. When the temperature exceeds a certain Curie temperature, its resistance increases stepwise with increasing temperature. VCU: Vehicle Control Unit; BMS: Battery Management System; CAN: Controller Area Network.

[0025] In electric vehicle braking systems, regenerative braking, as a core technology for energy recovery, is usually used in conjunction with mechanical braking to meet the vehicle's braking requirements.

[0026] In vehicles employing regenerative braking, the electric motor includes a drive mode that consumes electrical energy and a power generation mode that generates electrical energy. In drive mode, when the accelerator or accelerator is pressed, the vehicle's battery supplies power to the electric motor, which generates rotational force to drive the wheels. In this process, the electric motor converts electrical energy into kinetic energy. In power generation mode, when the accelerator is released or the brake is lightly applied, the inertia of the wheels causes the rotor of the electric motor to rotate, converting kinetic energy into electrical energy and transferring it to the power battery to charge it. Regenerative braking technology can recover wasted energy, improve the vehicle's energy efficiency and range, and share the deceleration task of mechanical braking, thus extending the lifespan of brake pads and brake discs.

[0027] When the power battery is in a high state of charge (SOC≥95%) or the single cell voltage is close to the upper limit threshold, the battery management system (BMS) will limit the feedback current to prevent the risk of overcharging. At this time, the mechanical brake needs to bear the main braking torque.

[0028] However, continuous mechanical braking can easily cause thermal fade between brake pads and brake discs. This is a physical phenomenon where the high temperature generated by friction between the brake disc and brake pads exceeds the material's limit, resulting in a decrease in friction and a weakening of braking force. Therefore, braking resistors are commonly used in the automotive industry as energy dissipation devices. By converting excess electrical energy into heat energy, they maintain the working capacity of the electric braking system when the battery is saturated, thereby reducing the mechanical braking load and avoiding the risk of thermal fade.

[0029] Currently, common braking resistors are mainly divided into air-cooled braking resistors and water-cooled braking resistors. Air-cooled braking resistors occupy slightly less space than water-cooled braking resistors, but due to their limited cooling capacity, they are prone to burning accidents. Water-cooled braking resistors have a larger cooling capacity and are therefore safer, but in addition to the resistor itself, they require corresponding water circuits and heat sinks, resulting in a larger size. Furthermore, braking resistors are also more expensive.

[0030] Therefore, in order to reduce the mechanical braking load and avoid the risk of thermal degradation, this application provides a vehicle control method that can improve the performance of regenerative braking while avoiding overcharging of the vehicle's power battery, thus balancing the challenges of improving braking performance and protecting battery performance.

[0031] Reference Figure 1 The diagram shows a schematic of a battery thermal management system provided in an embodiment of this application. The battery thermal management system includes an electric water pump, a battery water heater (PTC), a battery water cooling unit, a coolant temperature sensor, and a power battery.

[0032] The electric water pump is used to power the flow of coolant in the battery thermal management system. The coolant is pumped out by the electric water pump, flows through the battery water heater PTC, the battery water cooling unit, the coolant temperature sensor and the power battery, and then returns to the inlet of the electric water pump.

[0033] The battery water heater PTC is a heating element used to raise the temperature of the power battery under low temperature conditions, so as to avoid the power battery's charging and discharging performance weakening and regenerative braking limited due to excessively low temperature.

[0034] The battery water cooling unit is a cooling device used to cool the battery during high-temperature or high-intensity operation, preventing the power battery from overheating and causing weakened charging and discharging performance, thermal runaway risk, and aging problems. In actual implementation, the battery water cooling unit includes an air conditioning assembly and a thermal management unit. The air conditioning assembly includes cooling the passenger compartment and the battery thermal management circuit, and in some cases, it also cools the motor control system. The thermal management unit only cools the battery thermal management circuit or the battery thermal management circuit and the motor control system.

[0035] The coolant temperature sensor is used to monitor the temperature of the coolant flowing into the power battery in real time. The coolant temperature collected by the coolant temperature sensor can be used to adjust the cooling power of the air conditioning assembly or thermal management host, thereby realizing the processing of heat converted from regenerative braking energy.

[0036] Reference Figure 2 The diagram shows a circuit connection diagram provided in the embodiment of this application. The vehicle controller, the battery management controller in the BMS, the battery water heater PTC, the air conditioning assembly or thermal management host are connected and communicate with each other via a CAN bus. The power battery and the coolant temperature sensor are respectively connected to the battery management controller via hard wires.

[0037] Reference Figure 3 The diagram illustrates a flowchart of a vehicle control method according to an embodiment of this application. The method may specifically include the following steps: S101: When the current battery temperature of the power battery and the current outlet temperature of the battery water heater PTC meet the power consumption start-up conditions, the battery water heater PTC and the battery water cooling unit used to cool the power battery are turned on.

[0038] Specifically, when it is necessary to turn on the battery water heater PTC and the battery water cooling unit of the power battery to consume electrical energy, the vehicle controller VCU can generate a power consumption start command. The power consumption start command indicates that the current operating condition of the vehicle requires regenerative braking, but the state of charge of the power battery is high, or the voltage of the individual cells of the power battery is close to the upper limit threshold. At this time, it is possible to try to turn on the battery water heater PTC and the battery water cooling unit to consume electrical energy to improve the regenerative braking performance. In response to the power consumption start command, it is determined whether the battery water heater PTC and the battery water cooling unit can be turned on to consume electrical energy.

[0039] When the battery water heater PTC and battery water cooling unit are turned on, the current battery temperature of the vehicle's power battery and the current outlet temperature of the battery water heater PTC are obtained. Based on the battery temperature and the outlet temperature of the battery water heater PTC, it is determined whether the battery water heater PTC and battery water cooling unit can be turned on. This avoids the battery temperature from rising and causing a decrease in the performance of the power battery. It can improve the braking performance of regenerative braking while ensuring the performance of the power battery.

[0040] Reference Figure 4 This document illustrates a flowchart of a vehicle control method according to an embodiment of this application. The method can be applied to the battery management controller and specifically includes the following steps: S201: In response to the power consumption start command, obtain the current battery temperature of the power battery and the current outlet temperature of the battery water heater PTC.

[0041] Specifically, the power consumption start command can be issued by the vehicle controller (VCU) to the battery management controller.

[0042] In actual implementation, the vehicle controller can determine whether it is necessary to consume electrical energy by turning on the battery water heater PTC and battery water cooling unit based on the current braking condition of the vehicle. When it is necessary to consume electrical energy by turning on the battery water heater PTC and battery water cooling unit, the power consumption start command is sent to the battery management controller.

[0043] For example, when the current braking condition is a long downhill braking condition and the state of charge of the power battery is greater than the high state of charge threshold, or the single cell voltage of the power battery is close to the upper limit threshold, the vehicle controller can send the power consumption start command to the battery management controller.

[0044] In actual implementation, the braking conditions under which the vehicle controller issues the power consumption start command can be determined according to the actual application requirements, and this application embodiment does not impose any restrictions.

[0045] S202: Determine whether the current battery temperature of the power battery and the current outlet temperature of the battery water heater PTC meet the power consumption start-up conditions.

[0046] Specifically, the power consumption activation condition is met when the current battery temperature is lower than the battery temperature threshold and the current water outlet temperature is lower than the water outlet temperature threshold.

[0047] The battery temperature threshold and the outlet temperature threshold can be set according to the actual application requirements. For example, the battery temperature threshold can be set to 55°C and the outlet temperature threshold can be set to 60°C.

[0048] That is, when the current battery temperature is <55℃ and the current water outlet temperature is <60℃, the power consumption activation condition is met; when the current battery temperature is ≥55℃ or the current water outlet temperature is ≥60℃, the power consumption activation condition is not met.

[0049] S203: When the current battery temperature of the power battery and the current outlet temperature of the battery water heater PTC meet the power consumption start-up conditions, the battery water heater PTC and the battery water cooling unit are turned on.

[0050] Because high battery temperature can significantly affect battery charging and discharging performance, and high water temperature can continuously raise the battery temperature and cause the battery water heater PTC to overheat, the PTC can only be turned on when the battery temperature and the outlet temperature of the battery water heater PTC are low. In addition, the battery water cooling unit, such as the air conditioning assembly or thermal management unit, must be turned on to dissipate the heat generated by the battery water heater PTC in a timely manner.

[0051] After turning on the battery water heater PTC and the air conditioning assembly or thermal management unit, electrical energy can be continuously consumed, so that the motor can maintain a certain regenerative braking capability. In actual implementation, the heating power of the battery water heater PTC and the cooling power of the air conditioning assembly or thermal management unit can be adjusted to reduce the braking torque borne by the mechanical brake and avoid brake disc thermal fade.

[0052] In actual implementation, the heating power of the battery water heater PTC and the cooling power of the air conditioning assembly or thermal management host can be determined by the VCU in combination with the current braking conditions of the vehicle. This application embodiment does not impose any restrictions.

[0053] When the battery water heater PTC is turned on, some of the heat it generates is cooled and offset by the air conditioning assembly or thermal management unit. The remaining heat enters the power battery and is absorbed by the battery, while some heat is diffused into the external environment.

[0054] S204: When the current battery temperature of the power battery or the current outlet temperature of the battery water heater PTC does not meet the power consumption start-up conditions, the battery water heater PTC and the battery water cooling unit shall maintain their original working state.

[0055] When the current battery temperature or the current outlet temperature of the battery water heater PTC does not meet the power consumption activation conditions, i.e., the current battery temperature is ≥55℃ or the current outlet temperature is ≥60℃, it indicates that the power battery temperature is high and the water temperature is also high. If the battery water heater PTC and the battery water cooling unit are still turned on to consume power at this time, there is a risk of the power battery temperature becoming too high. Therefore, the battery water heater PTC and the battery water cooling unit are not turned on at this time.

[0056] In actual implementation, when the current battery temperature of the power battery or the current outlet temperature of the battery water heater PTC does not meet the power consumption start-up conditions, the current battery temperature of the power battery and the current outlet temperature of the battery water heater PTC can be continuously monitored until the current battery temperature and the current outlet temperature meet the power consumption start-up conditions, and then the battery water heater PTC and the battery water cooling unit are controlled to be turned on.

[0057] This means continuously monitoring the current battery temperature of the power battery and the current outlet temperature of the battery water heater PTC. If the temperature drops to the point where the power consumption activation conditions are met, i.e., the current battery temperature < 55℃ and the current outlet temperature < 60℃, the battery water heater PTC and the battery water cooling unit can be turned on to consume electrical energy.

[0058] S205: After turning on the battery water heater PTC and the battery water cooling unit, if the current battery temperature or the current outlet temperature does not meet the power consumption start-up conditions, or if no power consumption start-up command is received within a preset time, the corresponding shutdown process of the battery water heater PTC and the battery water cooling unit shall be executed.

[0059] Specifically, the shutdown process corresponding to the battery water heater PTC can be performed by directly controlling the battery water heater PTC to shut down.

[0060] When the current battery temperature and the current outlet temperature no longer meet the power consumption activation conditions, or when there is no longer a power consumption requirement, the battery water heater PTC should be turned off immediately to prevent the power battery temperature from rising and causing a performance degradation in the power battery.

[0061] Even when the battery water heater PTC is turned off, residual heat still exists, which may cause the temperature of the power battery to rise for a period of time. Therefore, in order to prevent the residual heat of the battery water heater PTC from causing the current battery temperature to continue to rise, the battery water cooling unit can be turned off after a delay, allowing the battery water cooling unit to continue working for a period of time to offset the residual heat of the battery water heater PTC.

[0062] Specifically, the shutdown process corresponding to the battery water cooling unit includes: Obtain the current temperature of the coolant and determine whether the current temperature of the coolant meets the preset delay shutdown condition.

[0063] Specifically, the current temperature of the coolant flowing into the power battery can be read by a coolant temperature sensor. The preset delay shutdown condition can be set by setting a low temperature threshold. The preset delay shutdown condition can be determined by comparing the low temperature threshold with the low temperature threshold.

[0064] For example, the low temperature threshold can be set to 25°C, which can be set according to the needs of actual applications. This application embodiment does not impose any restrictions.

[0065] When the current temperature of the coolant is less than the low temperature threshold, the current temperature of the coolant does not meet the delayed shutdown condition, and the battery water cooling unit is directly shut down. Since the current temperature of the coolant is <25°C at this time, it indicates that the temperature of the coolant is not high, and it is not necessary to use the battery water cooling unit to assist in heat dissipation, so the battery water cooling unit can be directly shut down.

[0066] When the current temperature of the coolant is greater than or equal to a preset low temperature threshold, the current temperature of the coolant meets the delayed shutdown condition, and the battery water cooling unit is shut down after a delay.

[0067] When the current temperature of the coolant is ≥25℃, that is, when the temperature of the coolant is high, the battery water cooling unit, such as the air conditioning assembly or thermal management unit, can be shut down after a delay, allowing the battery water cooling unit to continue working for a period of time to offset the residual heat of the battery water heater PTC.

[0068] In actual implementation, during the delayed shutdown of the battery water cooling unit, a timer can be used to record the delayed working time of the battery water cooling unit. When the delayed working time of the battery water cooling unit reaches the target time threshold, the battery water cooling unit is shut down. That is, the upper limit of the delayed working time of the battery water cooling unit is preset, such as 10 minutes, which can avoid excessive energy consumption under high temperature conditions.

[0069] During the delayed shutdown process of the battery water cooling unit, the current temperature of the coolant can be continuously monitored. When the current temperature of the coolant is detected to be lower than the preset shutdown temperature, the battery water cooling unit is shut down. For example, the shutdown temperature can be the same as the low temperature threshold, or a different value can be used. This application embodiment does not impose any restrictions.

[0070] Reference Figure 5 The diagram illustrates an execution flowchart of a vehicle control method provided in an embodiment of this application. In one feasible implementation, the execution process of this method may include the following steps: S1: VCU sends a power-on command.

[0071] S2: The BMS determines whether the current battery temperature of the power battery is less than 55°C and whether the current outlet temperature of the battery water heater PTC is less than 60°C.

[0072] If not, execute S3; if yes, execute S4.

[0073] S3: Continuously monitor the current battery temperature of the power battery and the current outlet temperature of the battery water heater PTC, and execute S2; S4: BMS activates the battery water heater PTC and air conditioning assembly or thermal management unit; S5: The BMS continuously monitors the current battery temperature of the power battery and the current outlet temperature of the battery water heater PTC. S6: The BMS determines whether the current battery temperature of the power battery is ≥55℃, or whether the current outlet temperature of the battery water heater PTC is ≥60℃, or whether it has not received a power consumption start command from the VCU within a preset time.

[0074] If not, proceed to S05; If so, then execute S07.

[0075] S7: Turn off the battery water heater PTC.

[0076] S8: Determine if the current temperature of the coolant is <25℃.

[0077] If not, proceed to S09; If so, execute S10.

[0078] S9: Delay the shutdown of the air conditioning assembly or thermal management unit for 10 minutes.

[0079] In actual implementation, it can also be set to shut down the air conditioning assembly or thermal management unit when the current temperature of the coolant is lower than the shutdown temperature.

[0080] S10: Turn off the air conditioning assembly or thermal management unit.

[0081] This method can dynamically adjust the start and stop of the battery water heater PTC and battery water cooling unit according to the battery temperature of the power battery and the outlet temperature of the battery water heater PTC. It can improve regenerative braking performance by consuming energy and reduce the impact of the reused battery thermal management circuit on battery performance, while avoiding the effect of the power battery's continuously rising temperature limiting the discharge performance.

[0082] Reference Figure 6 This diagram illustrates a functional block diagram of a vehicle control device according to an embodiment of this application. The device includes: The power consumption activation module 100 is used to activate the battery water heater PTC and the battery water cooling unit for cooling the power battery when the current battery temperature of the power battery and the current outlet temperature of the battery water heater PTC meet the power consumption activation conditions.

[0083] Optionally, the power consumption activation condition is met when the current battery temperature is less than the battery temperature threshold and the current outlet temperature is less than the outlet temperature threshold.

[0084] Optionally, the device further includes: The monitoring module is used to continuously monitor the current battery temperature of the power battery and the current outlet temperature of the battery water heater PTC when the current battery temperature or the current outlet temperature does not meet the power consumption start-up conditions.

[0085] Optionally, the device further includes: The power consumption shutdown module is used to execute the corresponding shutdown process of the battery water heater PTC and the battery water cooling unit when the current battery temperature or the current water outlet temperature does not meet the power consumption start conditions, or when no power consumption start command is received within a preset time.

[0086] Optionally, the power-off module includes: The delayed shutdown unit is used to obtain the current temperature of the coolant; when the current temperature of the coolant meets the preset delayed shutdown condition, the battery water cooling unit is shut down after a delay.

[0087] Optionally, the delayed shutdown unit is used to: When the delayed working time of the battery water cooling unit reaches the target time threshold, the battery water cooling unit is turned off.

[0088] Optionally, the delayed shutdown unit is used to: When the current temperature of the coolant is detected to be lower than the preset shutdown temperature, the battery water cooling unit is shut down.

[0089] Optionally, when the current temperature of the coolant is greater than or equal to a preset low temperature threshold, the current temperature of the coolant satisfies the delayed shutdown condition. When the current temperature of the coolant is lower than the low temperature threshold, the current temperature of the coolant does not meet the delayed shutdown condition.

[0090] Optionally, the battery water cooling unit includes an air conditioning assembly or a thermal management unit.

[0091] Reference Figure 7 The diagram illustrates an electronic device provided in an embodiment of this application. The electronic device includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor. When the program or instructions are executed by the processor, they implement the various processes of the vehicle control method embodiment described above and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0092] It should be noted that the electronic devices in the embodiments of this application include the mobile electronic devices and non-mobile electronic devices described above.

[0093] Reference Figure 8 The diagram illustrates a readable storage medium provided in an embodiment of this application. The readable storage medium stores a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the vehicle control method embodiments described above and achieve the same technical effects. To avoid repetition, further details are omitted here.

[0094] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0095] Reference Figure 9 The diagram illustrates a computer program product provided in an embodiment of this application, including a computer program / instruction. When the computer program / instruction is executed by a processor, it implements the various processes of the vehicle control method embodiment described above and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0096] This application also provides a vehicle for executing the various processes of the above-described vehicle control method embodiments, or includes the above-described vehicle control device, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0097] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0098] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions to cause a terminal (which may be a computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0099] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. The description of the embodiments above is only for the purpose of helping to understand the method and core idea of ​​this application. Those skilled in the art can make many forms under the guidance of this application without departing from the spirit and scope of protection of the claims, and all of these are within the protection scope of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A vehicle control method, characterized in that, The method includes: When the current battery temperature of the power battery and the current outlet temperature of the battery water heater PTC meet the power consumption start-up conditions, the battery water heater PTC and the battery water cooling unit used to cool the power battery are turned on.

2. The method according to claim 1, characterized in that, When the current battery temperature is less than the battery temperature threshold and the current outlet temperature is less than the outlet temperature threshold, the power consumption activation condition is met.

3. The method according to claim 1, characterized in that, The method further includes: When the current battery temperature or the current water outlet temperature does not meet the power consumption start-up conditions, the current battery temperature of the power battery and the current water outlet temperature of the battery water heater PTC are continuously monitored.

4. The method according to claim 1, characterized in that, After turning on the battery water heater PTC and the battery water cooling unit, the method further includes: When the current battery temperature or the current outlet temperature does not meet the power consumption start-up conditions, or when no power consumption start-up command is received within a preset time, the corresponding shutdown process of the battery water heater PTC and the battery water cooling unit is executed.

5. The method according to claim 4, characterized in that, The shutdown process corresponding to the battery water cooling unit includes: Get the current temperature of the coolant; When the current temperature of the coolant meets the preset delayed shutdown condition, the battery water cooling unit is shut down after a delay.

6. The method according to claim 5, characterized in that, Delayed shutdown of the battery water cooling unit includes: When the delayed working time of the battery water cooling unit reaches the target time threshold, the battery water cooling unit is turned off.

7. The method according to claim 5, characterized in that, Delayed shutdown of the battery water cooling unit includes: When the current temperature of the coolant is detected to be lower than the preset shutdown temperature, the battery water cooling unit is shut down.

8. The method according to claim 5, characterized in that, After obtaining the current temperature of the coolant, the method further includes: When the current temperature of the coolant does not meet the preset delay shutdown condition, the battery water cooling unit is directly shut down.

9. The method according to any one of claims 5-8, characterized in that, When the current temperature of the coolant is greater than or equal to a preset low temperature threshold, the current temperature of the coolant satisfies the delayed shutdown condition. When the current temperature of the coolant is lower than the low temperature threshold, the current temperature of the coolant does not meet the delayed shutdown condition.

10. The method according to claim 1, characterized in that, The battery water cooling unit includes an air conditioning assembly or a thermal management unit.

11. A vehicle control device, characterized in that, The device includes: The power consumption activation module is used to activate the battery water heater PTC and the battery water cooling unit for cooling the power battery when the current battery temperature of the power battery and the current outlet temperature of the battery water heater PTC meet the power consumption activation conditions.

12. An electronic device, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the vehicle control method as described in any one of claims 1-10.

13. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the vehicle control method as described in any one of claims 1-10.

14. A computer program product comprising a computer program / instructions, characterized in that, When the computer program / instructions are executed by the processor, they implement the vehicle control method according to any one of claims 1-10.

15. A vehicle, characterized in that, The vehicle is used to perform the vehicle control method according to any one of claims 1-10, or includes the vehicle control device according to claim 11.

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