Vehicle driving method, apparatus and device, and vehicle device and storage medium

Abstract

A vehicle driving method, a vehicle driving apparatus (10), a vehicle driving device (40), a vehicle device (5), and a storage medium. The vehicle driving method is applied to the vehicle driving apparatus (10), which comprises a hybrid traction battery module (11), wherein the hybrid traction battery module (11) comprises a first traction battery module (111) and a second traction battery module (112). The vehicle driving method comprises: acquiring a first battery state of charge of a first traction battery module (111) and a second battery state of charge of a second traction battery module (112); determining a driving mode on the basis of the first battery state of charge and the second battery state of charge; and finally, performing vehicle driving according to the driving mode.

Description

Vehicle driving method, device and equipment, vehicle equipment and storage medium Technical Field

[0001] The present application relates to new energy vehicle technology, and in particular to a vehicle driving method, device and equipment, vehicle equipment and storage medium. Background Art

[0002] Common new energy vehicles include HEV (Hybrid Electric Vehicle) and PHEV (Plug-in Hybrid Electric Vehicle). Among them, the HEV battery has a good cycle life, generally reaching 48,000 cycles. It intervenes when the vehicle starts and accelerates, which can achieve the purpose of saving fuel and improving power. The PHEV battery has a larger capacity, generally around 20kWh, and also has a separate pure electric operating condition and a longer pure electric range. However, the HEV battery has a small capacity, generally only around 1.8kWh to 2kWh, and does not have a separate pure electric operating condition. The PHEV battery has a poor cycle life, generally only reaching 1,500 cycles.

[0003] It can be seen that common new energy vehicle batteries cannot take into account both long cycle life and pure electric range, thereby reducing the overall performance of new energy vehicles.

[0004] Summary of the Invention

[0005] In order to solve the above technical problems, the present application hopes to provide a vehicle driving method, device and equipment, vehicle equipment and storage medium, which can enable new energy vehicle batteries to have both a longer cycle life and pure electric range.

[0006] The technical solution of this application is achieved as follows:

[0007] In a first aspect, an embodiment of the present application provides a vehicle driving method, which is applied to a vehicle driving device, the vehicle driving device including a hybrid power battery module, wherein the hybrid power battery module includes a first power battery module and a second power battery module, the method comprising:

[0008] Acquire a first battery charge of the first power battery module and a second battery charge of the second power battery module;

[0009] determining a driving mode based on the first battery charge and the second battery charge;

[0010] The vehicle is driven according to the driving mode.

[0011] In a second aspect, an embodiment of the present application provides a vehicle drive device, the vehicle drive device comprising:

[0012] an acquiring unit, configured to acquire a first battery charge of the first power battery module and a second battery charge of the second power battery module;

[0013] a determining unit, configured to determine a driving mode based on the first battery charge and the second battery charge;

[0014] The drive unit is used to drive the vehicle according to the drive mode.

[0015] In a third aspect, an embodiment of the present application provides a vehicle driving device, which includes: a processor and a memory configured to store a computer program that can be run on the processor, wherein the processor is configured to execute the steps of the aforementioned vehicle driving method when running the computer program.

[0016] In a fourth aspect, an embodiment of the present application provides a vehicle device, which includes a vehicle drive device, the vehicle drive device includes a hybrid power battery module, wherein the hybrid power battery module includes a first power battery module and a second power battery module, and the vehicle device is used to execute the steps of the aforementioned vehicle drive method.

[0017] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium on which a computer program is stored, wherein the computer program implements the steps of the aforementioned vehicle driving method when executed by a processor.

[0018] Embodiments of the present application provide a vehicle driving method, apparatus, and device, vehicle equipment, and storage medium. The vehicle driving method is applied to a vehicle driving device, wherein the vehicle driving device includes a hybrid power battery module, the hybrid power battery module including a first power battery module and a second power battery module; the vehicle driving device obtains a first battery charge of the first power battery module and a second battery charge of the second power battery module; determines a driving mode based on the first battery charge and the second battery charge; and finally, drives the vehicle according to the driving mode. Thus, in the embodiments of the present application, the battery charges of the first power battery module and the second power battery module are obtained separately, and the driving mode of the vehicle is further determined based on the battery charges, and the vehicle is adaptively driven based on the driving mode. In other words, in the embodiments of the present application, the vehicle can be adaptively driven based on the battery charges corresponding to the different battery modules in the hybrid power battery module. This ensures that the vehicle battery has a long cycle life and pure electric driving range, not only achieving efficient driving of the new energy vehicle but also improving the overall performance of the new energy vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG1 is a schematic structural diagram of a vehicle drive device according to an embodiment of the present application;

[0020] FIG2 is a flow chart of a vehicle driving method according to an embodiment of the present application;

[0021] FIG3 is a second flow chart of a vehicle driving method according to an embodiment of the present application;

[0022] FIG4 is a third flow chart of a vehicle driving method according to an embodiment of the present application;

[0023] FIG5 is a fourth flow chart of a vehicle driving method according to an embodiment of the present application;

[0024] FIG6 is a fifth flow chart of a vehicle driving method according to an embodiment of the present application;

[0025] FIG7 is a sixth flow chart of a vehicle driving method according to an embodiment of the present application;

[0026] FIG8 is a seventh flow chart of a vehicle driving method according to an embodiment of the present application;

[0027] FIG9 is a schematic diagram of the composition structure of a vehicle drive device according to an embodiment of the present application;

[0028] FIG10 is a schematic diagram of the composition structure of a vehicle drive device according to an embodiment of the present application;

[0029] FIG11 is a schematic diagram of the composition structure of a vehicle device in an embodiment of the present application. DETAILED DESCRIPTION

[0030] In order to enable a more detailed understanding of the features and technical contents of the embodiments of the present application, the implementation of the embodiments of the present application is described in detail below with reference to the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present application.

[0031] An HEV is a hybrid electric vehicle that uses both electricity and gasoline to generate power. It uses electricity at low speeds (under 20 km / h) and gasoline at high speeds. When the driver needs to accelerate quickly, the fuel engine and electric motor work together, replacing the engine with the electric motor to operate under more fuel-intensive conditions, such as idling and low-speed driving, saving fuel.

[0032] A PHEV is a plug-in hybrid electric vehicle (PHEV), capable of driving on electricity, fuel, or both. Furthermore, it features an on-board charging port and boasts an all-electric range exceeding 80km using the NEDC (New European Driving Cycle) range test method.

[0033] Current HEV hybrid models and PHEV plug-in hybrid models have their own advantages and disadvantages:

[0034] Due to the operating conditions, HEV batteries must be designed with high-rate discharge (maximum discharge rate > 40C), and PHEV batteries must be designed with relatively large-rate discharge (maximum discharge rate 5-10C).

[0035] Because the discharge rate of HEV batteries is high, the compaction density of the positive and negative electrode materials of the battery cell is low, so the battery capacity is small. Therefore, the power of HEV batteries is generally between 1 and 2 kWh.

[0036] Because the PHEV battery's discharge rate is higher, the density of the positive and negative electrode materials in the battery cell is higher, so the battery capacity is also larger. Therefore, the power of a PHEV battery is generally around 20kWh. Therefore, the power battery capacity of an HEV is much smaller than that of a PHEV.

[0037] HEV batteries have a very good cycle life, typically exceeding 48,000 cycles (10C charge / discharge, 100% DOD, 25°C, 80% SOH), which can meet a 10-year or 300,000-kilometer driving requirement. However, HEV batteries have a low capacity and lack pure electric operation, so their only advantage is fuel efficiency.

[0038] The cycle life of PHEV batteries is poor. Generally, the system can reach 1,500 cycles (1C charge and discharge, 100% DOD, 25°C, 80% SOH), which can meet the vehicle driving requirements of 120,000 kilometers (approximately 1,500 cycles). After reaching this mileage or number of years, the battery life will drop sharply, seriously affecting the driving experience.

[0039] It can be seen that common new energy vehicle batteries cannot achieve both a long cycle life and a pure electric driving range, thus reducing the overall performance of new energy vehicles.

[0040] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application.

[0041] The embodiments of the present application provide a vehicle driving method. It should be noted that the vehicle driving method proposed in the embodiments of the present application can be applied to a vehicle driving device, a vehicle driving device, or a vehicle equipment. The vehicle equipment may be integrated with a vehicle driving device or a vehicle driving device. This application does not specifically limit this.

[0042] It should be noted that, in the embodiment of the present application, Figure 1 is a structural schematic diagram of the vehicle drive device in the embodiment of the present application. As shown in Figure 1, the vehicle drive device 10 includes a hybrid power battery module 11, wherein the hybrid power battery module 11 includes a first power battery module 111 and a second power battery module 112.

[0043] It should be noted that the vehicle drive device 10 of the present application also includes a drive module 12 and an electric drive assembly 13. The drive module 12 includes an engine 121 and a motor 122. The drive module 12 is connected to the hybrid power battery module 11, and the electric drive assembly 13 is connected to the hybrid power battery module 11.

[0044] It should be noted that the high voltage end of the first power battery module 111 is connected to the motor 122 ; the high voltage end of the second power battery module 112 is connected to the electric drive assembly 13 , and the motor 122 is connected to the engine 121 .

[0045] It should be noted that, in the embodiment of the present application, a charging port 14 is provided on the outside of the second power battery module.

[0046] Here, the execution subject of the vehicle drive device 10 can be a VCU (Vehicle Control Unit). The VCU is the core controller in the control system of a new energy vehicle and plays a key role in the normal driving of the vehicle, braking feedback of battery energy, drive system control, vehicle energy management and optimization, vehicle communication, fault diagnosis, vehicle status monitoring and other functions.

[0047] Furthermore, in the embodiments of the present application, the vehicle driving method proposed in the embodiments of the present application is exemplarily described by taking a vehicle driving device as an example. FIG2 is a flow chart of a vehicle driving method in the embodiments of the present application. As shown in FIG2 , the vehicle driving method may specifically include the following steps:

[0048] Step 101: Obtain a first battery charge of a first power battery module and a second battery charge of a second power battery module.

[0049] In an embodiment of the present application, the vehicle driving device may first obtain a first battery charge of the first power battery module, and simultaneously obtain a second battery charge of the second power battery module.

[0050] It should be noted that, in the embodiments of the present application, the first battery charge represents the ratio of the remaining dischargeable capacity of the first power battery module after it has been used for a period of time or maintained for a long time to its fully charged capacity; the second battery charge represents the ratio of the remaining dischargeable capacity of the second power battery module after it has been used for a period of time or maintained for a long time to its fully charged capacity.

[0051] It should be noted that in the embodiments of the present application, the first power battery module and the second power battery module may be different power supply modules with charge and discharge functions. For example, the power battery modules in the hybrid power battery module may include HEV batteries and PHEV batteries.

[0052] For example, in some embodiments, the first power battery module may be an HEV battery, and the second power battery module may be a PHEV battery; the first power battery module may be a PHEV battery, and the second power battery module may be an HEV battery.

[0053] It should be noted that, in the embodiments of the present application, the first power battery module is an HEV battery and the second power battery module is a PHEV battery.

[0054] Step 102 : Determine a driving mode based on the first battery charge and the second battery charge.

[0055] In an embodiment of the present application, after obtaining a first battery charge of the first power battery module and a second battery charge of the second power battery module, the vehicle driving device may further determine a driving mode based on the first battery charge and the second battery charge.

[0056] It should be noted that, in the embodiments of the present application, the driving mode can be used to determine the driving method of the vehicle, wherein the driving mode can include multiple different vehicle driving methods. For example, the driving mode can include multiple different vehicle driving methods such as a first driving mode, a second driving mode, a third driving mode, and a fourth driving mode.

[0057] It should be noted that, in an embodiment of the present application, when the driving mode is determined based on the first battery charge and the second battery charge, when the second battery charge is less than or equal to the first threshold value and the first battery charge is within the set threshold range, the driving mode can be determined to be the first driving mode.

[0058] It should be noted that, in the embodiment of the present application, the first driving mode may represent a mode of driving the vehicle based on the first power battery module.

[0059] It should be noted that, in the embodiment of the present application, the first threshold value may represent the lower threshold value when the second power battery module is in a normal working state, and may also represent the upper threshold value when the second power battery module is in a low power maintenance stage.

[0060] It should be noted that, in the embodiment of the present application, the set threshold range may represent the threshold range in which the first power battery module is in a normal working state.

[0061] It should be noted that, in an embodiment of the present application, when determining the driving mode, the battery charge can be compared with the first threshold and the set threshold range respectively to obtain a comparison result. If the comparison result is that the second battery charge is less than or equal to the first threshold, and the first battery charge is within the set threshold range, it is considered that the second power battery module is in a low-power maintenance stage and the first power battery module is in a normal working state, so the driving mode is determined to be the first driving mode for vehicle driving based on the first power battery module.

[0062] It should be noted that, in an embodiment of the present application, when the driving mode is determined based on the first battery charge and the second battery charge, when the second battery charge is greater than the first threshold and the first battery charge is within the set threshold range, the driving mode is determined to be the second driving mode.

[0063] It should be noted that, in the embodiment of the present application, the second driving mode may represent a mode in which the vehicle is driven based on the second power battery module.

[0064] It should be noted that, in an embodiment of the present application, when determining the driving mode, the battery charge can be compared with the first threshold and the set threshold range respectively to obtain a comparison result. If the comparison result is that the second battery charge is greater than the first threshold, and the first battery charge is within the set threshold range, it is considered that the second power battery module and the first power battery module are both in normal working condition. Since the power of the first power battery module is much smaller than that of the second power battery module, when the second power battery module is in normal working condition, the driving force provided by the first power battery module can be completely ignored, so the driving mode is determined to be the second driving mode based on the second power battery module for vehicle driving.

[0065] It should be noted that in the embodiments of the present application, the driving mode may further include a third driving mode and a fourth driving mode determined based on the throttle opening and the second battery charge. The third driving mode may represent a mode in which the vehicle is driven by the engine and the second power battery module, and the fourth driving mode may represent a mode in which the vehicle is driven by the engine, the first power battery module, and the second power battery module.

[0066] Step 103: Drive the vehicle according to the driving mode.

[0067] In an embodiment of the present application, after determining the driving mode based on the first battery charge and the second battery charge, the vehicle driving device may further drive the vehicle according to the driving mode.

[0068] It should be noted that, in the embodiment of the present application, the vehicle driving device drives the vehicle according to any one of the first driving mode, the second driving mode, the third driving mode or the fourth driving mode.

[0069] It should be noted that in an embodiment of the present application, if the driving mode is the first driving mode, when the vehicle is driven according to this driving mode, it is necessary to disconnect the second power battery module, and at the same time control the first power battery module and the engine to jointly drive the motor so as to drive the vehicle through the motor.

[0070] It should be noted that if the driving mode is the first driving mode, the second power battery module is no longer able to charge or discharge normally, that is, the second power battery module is in a low-power holding stage. Therefore, when driving the vehicle in the first driving mode, on the one hand, the second power battery module can be disconnected; on the other hand, after disconnecting the second power battery module, to ensure sufficient driving force for the vehicle, the first power battery module and the engine are used as the power source to drive the motor, thereby driving the vehicle normally.

[0071] It should be noted that, in an embodiment of the present application, if the driving mode is the second driving mode, when the vehicle is driven according to this driving mode, the second power battery module can be controlled to drive the electric drive assembly to drive the vehicle through the electric drive assembly.

[0072] It should be noted that if the driving mode is the second driving mode, the second power battery module can charge and discharge normally. Although the first power battery module can also charge and discharge normally at this time, the power of the first power battery module is much smaller than that of the second power battery module, so the driving force provided by the first power battery module can be ignored. Therefore, when the vehicle is driven in the second driving mode, the driving force provided by the larger second power battery module to the electric drive assembly can be used to drive the vehicle normally.

[0073] It should be noted that in an embodiment of the present application, if the driving mode is the third driving mode, when the vehicle is driven according to this driving mode, the second power battery module can be controlled to drive the electric drive assembly, and the engine can be controlled to drive the motor at the same time, so as to drive the vehicle through the electric drive assembly and the motor.

[0074] It should be noted that if the driving mode is the third driving mode, the second power battery module can charge and discharge normally. However, if the driver accelerates but does not want to drive too fast, that is, the throttle opening is relatively small, the vehicle requires greater driving force. Therefore, when the vehicle is driven in the third driving mode, the engine can drive the motor to provide one driving force, while the second power battery module can drive the electric drive assembly to provide another driving force. These two driving forces are then used to drive the vehicle.

[0075] It should be noted that in an embodiment of the present application, if the driving mode is the fourth driving mode, when the vehicle is driven according to this driving mode, the first power battery module and the engine are controlled to jointly drive the motor, and at the same time, the second power battery module is controlled to drive the electric drive assembly, so that the vehicle is driven by the electric drive assembly and the motor.

[0076] It should be noted that if the drive mode is the fourth drive mode, indicating that the second power battery module can charge and discharge normally, then if the driver has already accelerated and wants to go even faster, that is, if the vehicle's throttle is opened wide, it means that the vehicle requires greater driving force. Therefore, when the vehicle is driven in the fourth drive mode, on the one hand, the first power battery module and the engine can jointly drive the motor to provide one driving force, and on the other hand, the second power battery module can drive the electric drive assembly to provide another driving force. These two driving forces are then used to drive the vehicle to accelerate.

[0077] It should be noted that FIG3 is a second flow chart of a vehicle driving method according to an embodiment of the present application. As shown in FIG3 , after obtaining the first battery charge of the first power battery module and the second battery charge of the second power battery module, that is, after step 101, and before driving the vehicle according to the driving mode, that is, before step 103, the vehicle driving method may further include the following steps:

[0078] Step 104: Determine the throttle opening.

[0079] In an embodiment of the present application, after obtaining the first battery charge of the first power battery module and the second battery charge of the second power battery module, the vehicle driving device may further determine the throttle opening.

[0080] It should be noted that in the embodiments of this application, the throttle opening refers to the degree of opening of the accelerator pedal. The throttle opening, also known as the throttle opening, refers to the angle at which the engine throttle is opened. The vehicle engine throttle is operated by the driver using the accelerator pedal to change the engine's air intake and thereby control engine operation. Different throttle openings indicate different engine operating conditions.

[0081] Step 105: Determine the driving mode based on the throttle opening and the second battery charge.

[0082] In an embodiment of the present application, after determining the accelerator opening, the vehicle driving device may further determine the driving mode based on the accelerator opening and the second battery charge.

[0083] It should be noted that the driving mode may further include a third driving mode, a fourth driving mode and other different vehicle driving modes.

[0084] It should be noted that, in an embodiment of the present application, when the driving mode is determined based on the throttle opening and the second battery charge, when the throttle opening is less than or equal to the second threshold and the second battery charge is greater than the first threshold, the driving mode is determined to be the third driving mode.

[0085] It should be noted that, in the embodiment of the present application, the third driving mode may represent a mode in which the vehicle is driven based on the second power battery module and the engine.

[0086] It should be noted that, in the embodiment of the present application, the first threshold value may represent the lower threshold value when the second power battery module is in a normal working state, and may also represent the upper threshold value when the second power battery module is in a low power maintenance stage.

[0087] It should be noted that, in the embodiment of the present application, the second threshold value may represent the size of the throttle opening during normal acceleration of the vehicle.

[0088] It should be noted that, in an embodiment of the present application, when determining the driving mode, the battery charge can be compared with the first threshold, and the throttle opening can be compared with the second threshold to obtain a comparison result. If the comparison result is that the throttle opening is less than or equal to the second threshold, and the second battery charge is greater than the first threshold, it is considered that the second power battery module is in a normal working state. At the same time, the driver requires a faster vehicle speed, so the driving mode is determined to be a third driving mode based on the second power battery module and the engine for vehicle driving.

[0089] It should be noted that, in an embodiment of the present application, when the driving mode is determined based on the throttle opening and the second battery charge, when the throttle opening is greater than the second threshold and the second battery charge is greater than the first threshold, the driving mode is determined to be the fourth driving mode.

[0090] It should be noted that, in the embodiment of the present application, the fourth driving mode may represent a mode in which the vehicle is driven based on the second power battery module, the first power battery module, and the engine.

[0091] It should be noted that, in the embodiment of the present application, the first threshold value may represent the lower threshold value when the second power battery module is in a normal working state, and may also represent the upper threshold value when the second power battery module is in a low power maintenance stage.

[0092] It should be noted that, in the embodiment of the present application, the second threshold value may represent the size of the throttle opening during normal acceleration of the vehicle.

[0093] It should be noted that, in an embodiment of the present application, when determining the driving mode, the battery charge can be compared with the first threshold, and the throttle opening can be compared with the second threshold to obtain a comparison result. If the comparison result is that the throttle opening is greater than the second threshold, and the second battery charge is greater than the first threshold, it is considered that the second power battery module is in a normal working state. At the same time, the driver also requires a faster vehicle speed, so the driving mode is determined to be a fourth driving mode based on the first power battery module, the second power battery module and the engine to drive the vehicle.

[0094] It should be noted that, in the embodiment of the present application, when the charge of the second battery is less than or equal to the first threshold, and the charge of the first battery is within the set threshold range, it indicates that the second power battery module is in a low-power maintenance stage, that is, the second power battery module can no longer meet the power requirements of the entire vehicle. At this time, since the first power battery module is in a normal working state, the first power battery module is discharged alone, that is, the vehicle starts the first driving mode.

[0095] It should be noted that, in the embodiment of the present application, when the charge of the second battery is greater than the first threshold value, and the charge of the first battery is within the set threshold range, it means that the second power battery module and the first power battery module are both in normal working condition. However, the charge of the first power battery module is very small compared to that of the second power battery module, that is, the driving force provided by the first power battery module is very small and can even be ignored. Therefore, the second power battery module can be discharged alone, that is, the vehicle starts the second driving mode.

[0096] It should be noted that in the embodiment of the present application, when the throttle opening is less than or equal to the second threshold value, and the second battery charge is greater than the first threshold value, it indicates that the second power battery module is in a normal working state, and the driver requires a faster vehicle speed, so the second power battery module is discharged separately and cooperates with the engine to output power, that is, the vehicle starts the third driving mode.

[0097] It should be noted that, in the embodiment of the present application, when the throttle opening is greater than the second threshold and the second battery charge is greater than the first threshold, it indicates that the second power battery module is in a normal working state, and the driver also requires a faster vehicle speed; therefore, the first power battery module and the second power battery module are discharged at the same time, and cooperate with the engine to output power, that is, the vehicle starts the fourth driving mode.

[0098] It should be noted that, in the embodiment of the present application, when the charge level of the second battery of the second power battery module is insufficient, the second power battery module is charged by a charging gun through the charging port.

[0099] It should be noted that, in the embodiment of the present application, when the driver applies the brakes, the energy fed back by the brakes is first charged to the first power battery module through the motor, and then to the second power battery module.

[0100] The embodiment of the present application provides a vehicle driving method, wherein the vehicle driving method is applied to a vehicle driving device, the vehicle driving device includes a hybrid power battery module, and the hybrid power battery module includes a first power battery module and a second power battery module; after the vehicle driving device obtains the first battery charge of the first power battery module and the second battery charge of the second power battery module; the driving mode is determined according to the above-mentioned first battery charge and second battery charge; finally, the vehicle is driven according to the above-mentioned driving mode. It can be seen that in the embodiment of the present application, the battery charge of the first power battery module and the second power battery module are respectively obtained by the vehicle driving device, and the driving mode of the vehicle is further determined according to the battery charge to complete the driving of the vehicle. In this way, it is ensured that the vehicle battery can have a long cycle life and pure electric driving range, which not only realizes the efficient driving of new energy vehicles, but also improves the comprehensive performance of new energy vehicles.

[0101] In order to better reflect the purpose of this application, further examples are given based on the above embodiments of this application.

[0102] FIG4 is a third flow chart of a vehicle driving method according to an embodiment of the present application. As shown in FIG4 , the method for determining the driving mode based on the first battery charge and the second battery charge specifically includes the following steps:

[0103] Step 1021 : When the second battery charge is less than or equal to the first threshold and the first battery charge is within a set threshold range, determine that the driving mode is the first driving mode.

[0104] In an embodiment of the present application, after obtaining the first battery charge of the first power battery module and the second battery charge of the second power battery module, the vehicle drive device can further determine that the driving mode is the first driving mode when the second battery charge is less than or equal to the first threshold and the first battery charge is within the set threshold range.

[0105] It should be noted that, generally speaking, when the SOC of the PHEV battery is less than or equal to 10%, it means that the PHEV battery is already in the low power retention stage.

[0106] It should be noted that, in the embodiment of the present application, the first threshold value may be any value greater than 0, for example, the first threshold value may be 5%.

[0107] It should be noted that in the embodiments of the present application, when the second battery charge is less than or equal to the first threshold, it indicates that the second power battery module is in the low-battery-holding stage. In practical applications, the second battery charge can be any value less than or equal to 5%. In other words, the second power battery module is in the low-battery-holding stage only when the second battery charge is less than or equal to 5%.

[0108] In other words, compared to existing PHEV batteries, the second power battery has a shorter low-power holding period, preventing the second power battery module from being in the low-power holding stage even when the power level is high. This allows the power of the second power battery module to be utilized to the maximum extent possible.

[0109] It should be noted that in the embodiments of the present application, the threshold range is set to a range consisting of an upper limit value and a lower limit value, wherein the upper limit value is greater than or equal to the lower limit value, the lower limit value can be any value greater than 0% and less than 30%, and the upper limit value can be any value greater than or equal to 30%.

[0110] It should be noted that, in the embodiment of the present application, the first battery charge being within the range of 30% to 80% indicates that the first power battery module is in a normal working state.

[0111] It should be noted that in the embodiments of the present application, a first battery charge level outside the range of 30% to 80% indicates that the first power battery module is in a faulty state. That is, when the first battery charge level is less than 30% or when the first battery charge level is greater than 80%, the first power battery module is in a faulty state.

[0112] Accordingly, as shown in FIG4 , the method for driving a vehicle according to the driving mode may include the following steps:

[0113] Step 1031: Based on the first driving mode, disconnect the second power battery module, and simultaneously control the first power battery module and the engine to jointly drive the motor, so as to drive the vehicle through the motor.

[0114] In an embodiment of the present application, when the second battery charge is less than or equal to the first threshold value, and the first battery charge is within the set threshold range, after determining that the driving mode is the first driving mode, the vehicle driving device can further disconnect the second power battery module based on the first driving mode, and at the same time control the first power battery module and the engine to jointly drive the motor to drive the vehicle through the motor.

[0115] It should be noted that in the embodiment of the present application, after the second power battery module is disconnected, the second power battery module no longer supplies power to the electric drive assembly. At this time, only the first power battery module and the engine jointly drive the motor to further drive the vehicle.

[0116] It should be noted that, in the embodiment of the present application, the first power battery module and the engine are controlled to jointly drive the motor, thereby expanding the power source of the motor, thereby providing greater driving force for the vehicle.

[0117] In order to better reflect the purpose of this application, further examples are given based on the above embodiments of this application.

[0118] FIG5 is a fourth flow chart of a vehicle driving method according to an embodiment of the present application. As shown in FIG5 , the method for determining a driving mode based on a first battery charge and a second battery charge specifically includes the following steps:

[0119] Step 1022 : When the second battery charge is greater than the first threshold and the first battery charge is within a set threshold range, determine that the driving mode is the second driving mode.

[0120] In an embodiment of the present application, after obtaining the first battery charge of the first power battery module and the second battery charge of the second power battery module, the vehicle drive device can further determine that the driving mode is the second driving mode when the second battery charge is greater than the first threshold and the first battery charge is within a set threshold range.

[0121] It should be noted that in the embodiment of the present application, when the second battery charge is greater than the first threshold, it indicates that the second power battery module is in normal working state. In practical applications, the second battery charge can be any value greater than or equal to 5%.

[0122] It should be noted that, in the embodiment of the present application, the second battery charge being within the range of 5% to 95% indicates that the second power battery module is in a normal working state.

[0123] It should be noted that, in the embodiment of the present application, the first battery charge being within the range of 30% to 80% indicates that the first power battery module is in a normal working state.

[0124] It should be noted that in the embodiments of this application, even if the first power battery module is in normal operation, there is no need to control the first power battery module to drive the motor and thus the vehicle. This is because the power capacity of the first power battery module is much smaller than that of the second power battery module. When the second power battery module is in normal operation, the driving force provided by the first power battery module can be completely ignored. This saves unnecessary energy resources.

[0125] Accordingly, as shown in FIG5 , the method for driving a vehicle according to the driving mode may include the following steps:

[0126] Step 1032: Based on the second driving mode, control the second power battery module to drive the electric drive assembly to drive the vehicle through the electric drive assembly.

[0127] In an embodiment of the present application, when the second battery charge is greater than the first threshold and the first battery charge is within the set threshold range, after determining that the driving mode is the second driving mode, the vehicle drive device can further control the second power battery module to drive the electric drive assembly based on the second driving mode, so as to drive the vehicle through the electric drive assembly.

[0128] It should be noted that in the embodiments of this application, because the power of the first power battery module is much smaller than that of the second power battery module, the driving force provided by the first power battery module can be ignored even when the first power battery module is in normal operation. In other words, the driving force provided to the electric drive assembly by the larger second power battery module can be directly used to further drive the vehicle. This saves unnecessary energy resources.

[0129] In order to better reflect the purpose of this application, further examples are given based on the above embodiments of this application.

[0130] FIG6 is a fifth flow chart of a vehicle driving method according to an embodiment of the present application. As shown in FIG6 , the method for determining the driving mode based on the throttle opening and the second battery charge specifically includes the following steps:

[0131] Step 1053: When the throttle opening is less than or equal to the second threshold and the second battery charge is greater than the first threshold, determine that the driving mode is the third driving mode.

[0132] In an embodiment of the present application, after determining the throttle opening, the vehicle driving device may determine the driving mode to be the third driving mode when the throttle opening is less than or equal to the second threshold and the second battery charge is greater than the first threshold.

[0133] It should be noted that, in the embodiment of the present application, both the first threshold and the second threshold can be any value greater than 0.

[0134] It should be noted that in the embodiment of the present application, the first threshold value may be 5% and the second threshold value may be 50%. That is, when the throttle opening is less than or equal to 50% and the second battery charge is greater than 5%, the vehicle driving mode is the third driving mode.

[0135] It should be noted that, in the embodiment of the present application, when the throttle opening is less than or equal to 50%, it indicates that the driver requires a faster vehicle speed, that is, the vehicle requires a greater driving force.

[0136] Accordingly, as shown in FIG6 , the method for driving a vehicle according to the driving mode may include the following steps:

[0137] Step 1033: Based on the third driving mode, control the second power battery module to drive the electric drive assembly, and at the same time control the engine to drive the motor, so as to drive the vehicle through the electric drive assembly and the motor.

[0138] In an embodiment of the present application, when the throttle opening is less than or equal to the second threshold and the second battery charge is greater than the first threshold, after determining that the driving mode is the third driving mode, the vehicle driving device can control the second power battery module to drive the electric drive assembly based on the third driving mode, and at the same time control the engine to drive the motor, so as to drive the vehicle through the electric drive assembly and the motor.

[0139] It should be noted that in the embodiment of this application, when the vehicle's throttle opening is relatively small, the engine drives the motor because the driver does not want to drive too fast. On this basis, combined with the second power battery module to drive the electric drive assembly, it is sufficient to drive the vehicle.

[0140] In order to better reflect the purpose of this application, further examples are given based on the above embodiments of this application.

[0141] FIG7 is a sixth flow chart of a vehicle driving method according to an embodiment of the present application. As shown in FIG7 , the method for determining the driving mode based on the throttle opening and the second battery charge specifically includes the following steps:

[0142] Step 1054 : When the throttle opening is greater than the second threshold and the second battery charge is greater than the first threshold, determine that the driving mode is the fourth driving mode.

[0143] In an embodiment of the present application, after determining the throttle opening, the vehicle driving device may determine the driving mode to be the fourth driving mode if the throttle opening is greater than a second threshold and the second battery charge is greater than a first threshold.

[0144] It should be noted that, in the embodiment of the present application, both the first threshold and the second threshold can be any value greater than 0.

[0145] It should be noted that in the embodiment of the present application, the second threshold value may be 50% and the first threshold value may be 5%. That is, when the throttle opening is greater than 50% and the second battery charge is greater than 5%, the vehicle driving mode is the fourth driving mode.

[0146] It should be noted that, in the embodiment of the present application, when the throttle opening is greater than 50%, it indicates that the driver requires a faster vehicle speed, that is, the vehicle requires a greater driving force.

[0147] Accordingly, as shown in FIG7 , the method for driving a vehicle according to the driving mode may include the following steps:

[0148] Step 1034: Based on the fourth driving mode, control the first power battery module and the engine to jointly drive the motor, and simultaneously control the second power battery module to drive the electric drive assembly, so as to drive the vehicle through the electric drive assembly and the motor.

[0149] In an embodiment of the present application, when the throttle opening is greater than the second threshold and the second battery charge is greater than the first threshold, after determining that the driving mode is the fourth driving mode, the vehicle driving device can control the first power battery module and the engine to jointly drive the motor based on the fourth driving mode, and at the same time control the second power battery module to drive the electric drive assembly, so as to drive the vehicle through the electric drive assembly and the motor.

[0150] It should be noted that in the embodiments of this application, when the vehicle's throttle is opened wide, it indicates that the driver wants a higher speed. Based on this, not only is the first power battery module and the engine required to jointly drive the motor, but the second power battery module is also required to drive the electric drive assembly, thereby providing greater driving force for the vehicle.

[0151] It should be noted that, in the embodiment of the present application, the first battery charge of the first power battery module is in a normal working state, that is, the first battery charge of the first power battery module is between 30% and 80%.

[0152] Furthermore, an embodiment of the present application provides a vehicle driving method, wherein the vehicle driving method is applied to a vehicle drive device, the vehicle drive device including a hybrid power battery module, a drive module, and an electric drive assembly, wherein the drive module includes an engine and a motor, and the hybrid power battery module includes a first power battery module and a second power battery module; the drive module is connected to the hybrid power battery module, and the electric drive assembly is connected to the hybrid power battery module; specifically, the high-voltage terminal of the first power battery module is connected to the motor; the high-voltage terminal of the second power battery module is connected to the electric drive assembly, and the motor is connected to the engine. The vehicle drive device obtains a first battery charge of the first power battery module, a second battery charge of the second power battery module, and determines a throttle opening; if the second battery charge is less than or equal to a first threshold value and the first battery charge is within a set threshold range, determines that the driving mode is a first driving mode, disconnects the second power battery module based on the first driving mode, and simultaneously controls the first power battery module and the engine to jointly drive the motor, thereby driving the vehicle via the motor. When the second battery charge is greater than the first threshold and the first battery charge is within a set threshold range, the drive mode is determined to be the second drive mode; based on the second drive mode, the second power battery module is controlled to drive the electric drive assembly, so that the vehicle is driven by the electric drive assembly. When the throttle opening is less than or equal to the second threshold and the second battery charge is greater than the first threshold, the drive mode is determined to be the third drive mode; based on the third drive mode, the second power battery module is controlled to drive the electric drive assembly, and the engine is controlled to drive the motor, so that the vehicle is driven by the electric drive assembly and the motor. When the throttle opening is greater than the second threshold and the second battery charge is greater than the first threshold, the drive mode is determined to be the fourth drive mode; based on the fourth drive mode, the first power battery module and the engine are controlled to jointly drive the motor, and the second power battery module is controlled to drive the electric drive assembly, so that the vehicle is driven by the electric drive assembly and the motor.

[0153] As can be seen, in the embodiments of the present application, the vehicle drive device obtains the battery charge of the first power battery module and the second power battery module, and further determines the vehicle drive mode based on the battery charge to complete the vehicle drive. This ensures that the vehicle battery has a long cycle life and pure electric range, not only achieving efficient driving of the new energy vehicle, but also improving the overall performance of the new energy vehicle.

[0154] It should be noted that in the embodiments of the present application, the cycle life characteristics of HEV batteries and PHEV batteries are combined, and the HEV battery is operated under frequent charge and discharge conditions, while the PHEV battery is operated under stable charge and discharge conditions, which can improve the life of the entire battery system.

[0155] It should be noted that in the embodiments of this application, a higher pure electric range can be achieved. Currently, the SOC range of PHEV batteries is 10% to 95%. Because the power of PHEVs is low at low SOC, it cannot meet the high-speed driving requirements of the entire vehicle. However, with the intervention of HEV batteries, power can be provided to the motor simultaneously, which can meet the pure electric power requirements of the entire vehicle. Therefore, the lower limit of the PHEV's use SOC can be reduced to 5%. Based on a 20kWh battery, the available power is increased by 2kWh, and the pure electric range is expected to increase by 10km.

[0156] Based on the above embodiments, another embodiment of the present application provides a vehicle driving method. The vehicle driving method can be applied to a powertrain system, which can be a vehicle drive device, a vehicle drive device, or a vehicle device. The vehicle device can be integrated with a vehicle drive device or a vehicle drive device. This application does not specifically limit this.

[0157] It should be noted that in the embodiment of the present application, FIG8 is a flow chart of a vehicle driving method in the embodiment of the present application. As shown in FIG8, the powertrain system 20 includes a hybrid power battery module (hybrid power battery system) 11, a drive module 12, and an electric drive assembly 13. The drive module 12 includes an engine 121 and a motor 122. The drive module 12 is connected to the hybrid power battery module 11, and the electric drive assembly 13 is connected to the hybrid power battery module 11.

[0158] It should be noted that in the embodiment of the present application, the hybrid power battery module 11 includes a first power battery module 111 and a second power battery module 112; wherein, the high-voltage end of the first power battery module 111 is connected to the motor 122; the high-voltage end of the second power battery module 112 is connected to the electric drive assembly 13, and the motor 122 is connected to the engine 121.

[0159] It should be noted that, in the embodiment of the present application, the vehicle driving method proposed in the embodiment of the present application is exemplified by using an HEV battery (first power battery module) and a PHEV battery (second power battery module).

[0160] HEV battery features:

[0161] ① Life characteristics: good cycle life, generally can reach 48,000 cycles, meeting the vehicle's 10-year or 300,000-kilometer warranty requirements.

[0162] ②Power characteristics: The power is small, generally only about 1.8 to 2 kWh. There is no separate pure electric working condition. It only intervenes when the vehicle starts and accelerates to achieve the purpose of saving fuel and improving power.

[0163] PHEV battery features:

[0164] ① Lifespan characteristics: The cycle life is poor, generally only reaching 1,500 cycles to meet the vehicle's 8-year or 120,000-kilometer warranty requirement. The reason for the poor cycle life is that PHEV batteries have a power conservation condition. That is, when the battery's SOC (State of Charge, the vehicle battery's charge state, also known as the remaining capacity) reaches approximately 10%, the PHEV battery will be used as an HEV battery, frequently charging and discharging to maintain the battery's SOC at approximately 10%. However, due to the material characteristics of PHEV batteries, the cycle design life itself is poor, so this condition has a significant impact on the cycle life of PHEV batteries.

[0165] ②Power characteristics: The power is relatively large, generally around 20kWh, and has independent pure electric operation. Generally, it can travel about 80km under WLTC (World Light Vehicle Test Cycle) conditions.

[0166] As shown in FIG8 , in the embodiment of the present application, the powertrain system mainly consists of the following parts:

[0167] 1. Engine 121.

[0168] 2. Motor 122; Motor 122 is attached to engine 121 and can be used in two different modes.

[0169] The first mode is the power generation mode: at this time, the motor 122 acts as a generator, and the engine 121 drives the generator to charge the HEV battery or the PHEV battery. Most of the time, it charges the HEV, and special working conditions are to charge the PHEV battery. For example, when the driver drives out camping, the PHEV battery can be used as a power supply for the user to carry out related activities. When the battery power is insufficient, the engine can be started to drive the motor to power the PHEV battery.

[0170] The second mode is the driving mode: at this time, the motor 122 serves as a driving motor, and the power source is the HEV power battery, which can participate in the driving of the vehicle together with the electric drive assembly.

[0171] 3. Hybrid power battery system (hybrid power battery module) 11: The battery system includes two battery modules, an HEV power battery module (first power battery module) 111 and a PHEV power battery module (second power battery module) 112. The high-voltage end of the HEV power battery is connected to the generator, and the charging of the HEV power battery is only provided by the generator. The high-voltage end of the PHEV power battery is connected to the electric drive assembly.

[0172] It should be noted that the two high-voltage circuits do not affect each other and can work independently.

[0173] 4. Electric drive assembly 13: It is connected to the PHEV power battery module 112. The PHEV power battery module 112 outputs power to the electric drive assembly 13, and then the electric drive assembly 13 drives the vehicle.

[0174] 5. Charging port 14: The charging of the PHEV power battery module is provided by the external charging port 14, and in special cases by the generator. For example, when the driver drives out to camp, the PHEV power battery can be used as a power supply for the user to carry out related activities. When the battery power is insufficient, the engine can be started to drive the motor to power the PHEV battery.

[0175] It should be noted that, in the embodiment of the present application, the powertrain system has the following working modes:

[0176] (1) First driving mode, such as HEV driving mode (engine + HEV power battery + motor):

[0177] The triggering condition of the HEV driving mode (first driving mode) is: the SOC of the PHEV power battery module is less than or equal to 5% (first threshold), and the SOC of the HEV power battery module is 30% to 80%.

[0178] The SOC of an HEV power battery module is between 30% and 80% during normal operation. A PHEV power battery module with an SOC of 5% or less is in the low-charge holding phase. At this point, the PHEV power battery module can no longer output power.

[0179] It should be noted that when the existing PHEV battery reaches a low SOC (generally 10%), it enters the low SOC maintenance stage, which is equivalent to the HEV operating condition. At this time, the engine will drive the generator to frequently charge and discharge the PHEV battery, resulting in a decrease in the cycle life of the PHEV battery. In addition, since the output power of the PHEV battery with a low SOC is low and cannot meet the power requirements of the entire vehicle, customers will not be allowed to use 0%. Generally, only about 10% will be used, which results in a waste of electricity, which is equivalent to 10% of the electricity being rarely used. The embodiment of the present application adjusts the lower limit of the SOC of the PHEV power battery module from 10% to 5%, thereby improving the power utilization rate of the PHEV power battery module.

[0180] The driving process of the HEV driving mode is: disconnect the PHEV power battery module. At this time, only the HEV power battery module and the engine jointly drive the motor to further drive the vehicle.

[0181] Applicable scenarios of HEV driving mode: Suitable for long-distance driving conditions or urban conditions.

[0182] Whether it's a long-distance trip or the user doesn't have time to charge, the PHEV power battery module reaches the low-power holding stage. At this point, the PHEV battery can no longer output power and the PHEV power battery module can be disconnected. The vehicle is then driven in HEV drive mode. That is, when the PHEV battery's SOC drops to 5%, the PHEV battery no longer charges or discharges, thus protecting the PHEV battery's cycle life. Since the HEV drive mode only uses the HEV power battery module and the engine to drive the motor, fuel consumption is lower, achieving fuel conservation.

[0183] It should be noted that when the PHEV battery's SOC is 0% < SOC ≤ 5%, the low SOC PHEV battery can no longer meet the vehicle's power requirements. At this point, the HEV battery will discharge independently, and the HEV's SOC will be between 30% ≤ SOC ≤ 80%. This means the vehicle is in HEV driving mode.

[0184] (2) EV drive mode (PHEV power battery + electric drive assembly):

[0185] The triggering condition of the EV driving mode (the second driving mode) is: the SOC of the PHEV power battery module is 5% to 95%, and the SOC of the HEV power battery module is 30% to 80%.

[0186] Among them, the SOC of the HEV power battery module is 30% to 80%, which is the power range of its normal operation, and the SOC of the PHEV power battery module is 5% to 95%, which is also the power range of its normal operation.

[0187] The driving process of the EV driving mode is: directly based on the PHEV power battery module to provide driving force to the electric drive assembly, further driving the vehicle.

[0188] It should be noted that, since the power of the HEV power battery module is much smaller than that of the PHEV power battery module, the first power battery module may be ignored even when it is in a normal working state.

[0189] The applicable scenarios of EV driving mode are: short-distance driving conditions or pure electric conditions.

[0190] It should be noted that when the SOC of the PHEV battery is 5%<SOC≤95%, the vehicle is in EV driving mode, and only the PHEV battery is discharged.

[0191] (3) First Sport mode (engine + PHEV power battery + electric drive assembly):

[0192] The triggering conditions for the first sports working mode (third driving mode) are: the throttle opening is less than or equal to 50% (the second threshold value), and the SOC of the PHEV power battery module is 5% to 95%.

[0193] It should be noted that when the throttle opening is less than or equal to 50%, it indicates that the driver requires a faster vehicle speed, that is, the vehicle requires a greater driving force.

[0194] The first sport mode operates as follows: with the throttle open slightly, the engine drives the electric motor, as the driver doesn't want to drive too fast. This, combined with the second power battery module driving the electric drive assembly, is sufficient to propel the vehicle forward.

[0195] The applicable scenario of the second sports working mode is: normal driving conditions.

[0196] It should be noted that when the first sports working mode is turned on, only the PHEV battery (5%≤SOC≤95%) is discharged, while the engine is used for power output.

[0197] (4) Second motion working mode (engine + HEV power battery + motor + PHEV power battery + electric drive assembly):

[0198] The triggering conditions for the second sports working mode (fourth driving mode) are: the throttle opening is less than or equal to 50% (the second threshold), the SOC of the PHEV power battery module is 5% to 95%, and the SOC of the HEV power battery module is 30% to 80%.

[0199] It should be noted that, in the embodiment of the present application, when the throttle opening is greater than 50%, it indicates that the driver requires a faster vehicle speed, that is, the vehicle requires a greater driving force.

[0200] The second sport mode operates as follows: When the vehicle's throttle is wide open, indicating the driver desires a higher speed, the first power battery module and engine are required to jointly drive the electric motor, while the second power battery module is also required to drive the electric drive assembly, providing greater driving force and enhancing the user's driving experience.

[0201] The applicable scenario of the second sports working mode is: high-speed driving conditions.

[0202] It should be noted that when the second sports working mode is turned on, on the basis of the first sports working mode, an additional power output is added, that is, the PHEV battery (5%<SOC≤95%) and the HEV battery (30%≤SOC≤80%) are discharged at the same time to cooperate with the engine for power output.

[0203] (5) Special mode: Engine direct drive, that is, the vehicle is driven directly by the engine.

[0204] Applicable scenarios: Applicable to conditions where both PHEV power batteries and HEV power batteries fail and cannot output power.

[0205] It should be noted that, in the embodiment of the present application, the powertrain system also includes the following modes:

[0206] (1) External charging: When the SOC of the PHEV battery is 5% ≤ SOC < 95%, the battery of the PHEV power battery module is charged to 95% through the charging gun and then stopped.

[0207] (2) Braking feedback: When the SOC of the PHEV battery is 5% ≤ SOC < 95% and the SOC of the HEV battery is 30% ≤ SOC < 80%, when the driver brakes, the energy from braking feedback is first charged to the HEV battery module through the motor, followed by the PHEV battery module. That is, when the HEV battery reaches 80% charge, the PHEV battery module will continue to be charged.

[0208] It should be noted that the vehicle driving method proposed in the embodiments of the present application has the following advantages.

[0209] 1. This application combines the characteristics of HEV and PHEV batteries, enabling the HEV battery to operate only in hybrid operating conditions and the PHEV battery to operate only in pure electric operating conditions (no power retention conditions, which require frequent charging and discharging). This can significantly extend the life of the PHEV battery, specifically increasing the service life of the vehicle's PHEV battery from 1500 cycles to 2000 cycles. The PHEV power battery module and HEV power battery module of this application are designed together, so low power retention conditions do not need to be considered.

[0210] 2. The driving modes of this application are diverse, which can enhance the driver's driving experience and provide a better acceleration experience.

[0211] 3. This application can also achieve a higher pure electric range. Currently, the SOC range of PHEV batteries is 10% to 95%. Because the power of PHEV batteries is low at low SOC, it cannot meet the high-speed driving requirements of the entire vehicle. However, with the intervention of HEV batteries, power can be provided to the motor simultaneously, which can meet the pure electric power requirements of the entire vehicle. Therefore, the lower limit of PHEV's use SOC can be reduced to 5%. Based on a 20kWh battery, the available power is increased by 2kWh, and the pure electric range is expected to increase by 10km.

[0212] Based on the same inventive concept as the above-mentioned embodiment, another embodiment of the present application provides a vehicle drive device. Figure 9 is a schematic diagram of the composition structure of the vehicle drive device. As shown in Figure 9, the vehicle drive device 10 includes: an acquisition unit 1001, a determination unit 1002, and a drive unit 1003.

[0213] An acquiring unit 1001 is configured to acquire a first battery charge of a first power battery module and a second battery charge of a second power battery module;

[0214] A determining unit 1002 is configured to determine a driving mode based on the first battery charge and the second battery charge;

[0215] The driving unit 1003 is used to drive the vehicle according to the driving mode.

[0216] An embodiment of the present application also provides a schematic diagram of the composition structure of a vehicle drive device. As shown in Figure 10, the vehicle drive device 40 proposed in the embodiment of the present application may include a processor 41 and a memory 42 configured to store a computer program that can run on the processor. Furthermore, the vehicle drive device 40 may also include a communication interface 43 and a bus 44 for connecting the processor 41, the memory 42 and the communication interface 43.

[0217] In the embodiment of the present application, the above-mentioned processor 21 can be at least one of an application-specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field programmable gate array (FPGA), a central processing unit (CPU), a controller, a microcontroller, and a microprocessor. It can be understood that for different devices, the electronic device used to implement the above-mentioned processor function can also be other, and the embodiment of the present application is not specifically limited. The vehicle drive device 40 can also include a memory 42, which can be connected to the processor 41, wherein the memory 42 is used to store executable program code, which program code includes computer operating instructions. The memory 42 may include a high-speed RAM memory, and may also include a non-volatile memory, for example, at least two disk memories.

[0218] In the embodiment of the present application, the bus 44 is used to connect the communication interface 43, the processor 41 and the memory 42, as well as the mutual communication between these devices.

[0219] In the embodiment of the present application, the memory 42 is used to store instructions and data.

[0220] Furthermore, in an embodiment of the present application, the above-mentioned processor 41 is used to obtain a first battery charge of the first power battery module and a second battery charge of the second power battery module; determine a driving mode according to the above-mentioned first battery charge and second battery charge; and finally, drive the vehicle according to the above-mentioned driving mode.

[0221] In practical applications, the memory 42 may be a volatile memory, such as a random-access memory (RAM); or a non-volatile memory, such as a read-only memory (ROM), a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD); or a combination of the above types of memory, and provide instructions and data to the processor 41.

[0222] The embodiment of the present application provides a vehicle drive device and a vehicle drive equipment. The vehicle drive equipment obtains the first battery charge of the first power battery module and the second battery charge of the second power battery module; determines the drive mode according to the above-mentioned first battery charge and second battery charge; and finally, drives the vehicle according to the above-mentioned drive mode. It can be seen that in the embodiment of the present application, the battery charge of the first power battery module and the second power battery module are obtained respectively, and then the drive mode of the vehicle is further determined according to the battery charge to complete the driving of the vehicle. In this way, it is ensured that the vehicle battery has a long cycle life and pure electric driving range, which not only realizes the efficient driving of new energy vehicles, but also improves the comprehensive performance of new energy vehicles.

[0223] An embodiment of the present application also provides a schematic diagram of the composition structure of a vehicle device. As shown in Figure 11, the vehicle device 5 includes a vehicle drive device 10, and the vehicle drive device 10 includes a hybrid power battery module 11, wherein the hybrid power battery module 11 includes a first power battery module 111 and a second power battery module 112.

[0224] In an embodiment of the present application, the vehicle drive device 10 also includes a drive module 12 and an electric drive assembly 13, the drive module 12 includes an engine 121 and a motor 122, wherein the drive module 12 is connected to the hybrid power battery module 11, and the electric drive assembly 13 is connected to the hybrid power battery module 11.

[0225] An embodiment of the present application provides a vehicle device, which obtains a first battery charge of a first power battery module and a second battery charge of a second power battery module; determines a driving mode based on the first battery charge and the second battery charge; and finally, drives the vehicle according to the driving mode. It can be seen that in an embodiment of the present application, the battery charge of the first power battery module and the second power battery module are obtained respectively, and then the driving mode of the vehicle is further determined based on the battery charge to complete the driving of the vehicle. In this way, it is ensured that the vehicle battery has a long cycle life and pure electric driving range, which not only realizes the efficient driving of new energy vehicles, but also improves the overall performance of new energy vehicles.

[0226] An embodiment of the present application provides a computer-readable storage medium having a program stored thereon, which implements the vehicle driving method described above when executed by a processor.

[0227] Specifically, the program instructions corresponding to a vehicle driving method in this embodiment may be stored on a storage medium such as a CD, a hard disk, or a USB flash drive. When the program instructions corresponding to the vehicle driving method in the storage medium are read or executed by a vehicle driving device, the following steps are included:

[0228] Acquire a first battery charge of the first power battery module and a second battery charge of the second power battery module;

[0229] determining a driving mode based on the first battery charge and the second battery charge;

[0230] The vehicle is driven according to the driving mode.

[0231] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of hardware embodiments, software embodiments, or embodiments combining software and hardware. Furthermore, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.

[0232] The present application is described with reference to the implementation flow diagram and / or block diagram of the method, device (system) and computer program product according to the embodiment of the present application. It should be understood that each flow and / or box in the flow diagram and / or block diagram and the combination of the flow and / or box in the flow diagram and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processing machine or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for realizing the function specified in one flow diagram or multiple flows and / or one block or multiple blocks of the block diagram.

[0233] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a product including an instruction device that implements the functions specified in implementing one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0234] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0235] The above description is merely a preferred embodiment of the present application and is not intended to limit the scope of protection of the present application.

Claims

1. A vehicle driving method, characterized in that: The vehicle driving method is applied to a vehicle driving device, the vehicle driving device includes a hybrid power battery module, wherein the hybrid power battery module includes a first power battery module and a second power battery module, and the method includes: Acquire a first battery charge of the first power battery module and a second battery charge of the second power battery module; determining a driving mode based on the first battery charge and the second battery charge; The vehicle is driven according to the driving mode.

2. The method according to claim 1, characterized in that The vehicle drive device further includes a drive module and an electric drive assembly, wherein the drive module includes an engine and a motor, wherein the drive module is connected to the hybrid power battery module, and the electric drive assembly is connected to the hybrid power battery module.

3. The method according to claim 2, characterized in that The determining the driving mode based on the first battery charge and the second battery charge includes: When the second battery charge is less than or equal to a first threshold value, and the first battery charge is within a set threshold range, the driving mode is determined to be the first driving mode.

4. The method according to claim 3, characterized in that The driving of the vehicle according to the driving mode includes: Based on the first driving mode, the second power battery module is disconnected, and the first power battery module and the engine are controlled to jointly drive the motor, so as to drive the vehicle through the motor.

5. The method according to claim 3, characterized in that The determining the driving mode based on the first battery charge and the second battery charge includes: When the second battery charge is greater than the first threshold and the first battery charge is within the set threshold range, the driving mode is determined to be the second driving mode.

6. The method according to claim 5, characterized in that The driving of the vehicle according to the driving mode includes: Based on the second driving mode, the second power battery module is controlled to drive the electric drive assembly, so as to drive the vehicle through the electric drive assembly.

7. The method according to any one of claims 3 to 6, characterized in that The method further comprises: Determine the throttle opening; The driving mode is determined based on the accelerator opening and the second battery charge.

8. The method according to claim 7, characterized in that The determining the driving mode based on the throttle opening and the second battery charge comprises: When the throttle opening is less than or equal to a second threshold, and the second battery charge is greater than the first threshold, the driving mode is determined to be the third driving mode.

9. The method according to claim 8, characterized in that The driving of the vehicle according to the driving mode includes: Based on the third driving mode, the second power battery module is controlled to drive the electric drive assembly, and the engine is controlled to drive the motor, so that the vehicle is driven by the electric drive assembly and the motor.

10. The method according to claim 8 or 9, characterized in that The determining the driving mode based on the throttle opening and the second battery charge comprises: When the throttle opening is greater than the second threshold, and the second battery charge is greater than the first threshold, the driving mode is determined to be the fourth driving mode.

11. The method according to claim 10, characterized in that The driving of the vehicle according to the driving mode includes: Based on the fourth driving mode, the first power battery module and the engine are controlled to jointly drive the motor, and the second power battery module is controlled to drive the electric drive assembly, so as to drive the vehicle through the electric drive assembly and the motor.

12. A vehicle driving device, characterized in that: The vehicle driving device comprises: An acquisition unit, used to acquire a first battery charge of the first power battery module and a second battery charge of the second power battery module; a determining unit, configured to determine a driving mode based on the first battery charge and the second battery charge; The driving unit is used to drive the vehicle according to the driving mode.

13. A vehicle driving device, characterized in that: The vehicle driving device includes: a processor and a memory configured to store a computer program that can be run on the processor, Wherein, the processor is configured to execute the vehicle driving method according to any one of claims 1 to 11 when running the computer program.

14. A vehicle device, characterized in that: The vehicle equipment includes a vehicle drive device, the vehicle drive device includes a hybrid power battery module, wherein the hybrid power battery module includes a first power battery module and a second power battery module, and the vehicle equipment is used to execute the vehicle drive method described in any one of claims 1 to 11.

15. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the vehicle driving method according to any one of claims 1 to 11 is implemented.

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