Vehicle control method, computer readable storage medium and vehicle

Abstract

The invention relates to a vehicle control method, a computer readable storage medium and a vehicle, and the control method comprises the steps that a target operation mode is set in response to the vehicle, state information and / or driving demand information of the vehicle are / is acquired, and the target operation mode comprises at least one sub-mode; and controlling the vehicle to run in a corresponding sub-mode according to the state information and / or the driving demand information of the vehicle. According to the method, the problems of dynamic characteristics and noise abrupt change in an existing hybrid electric vehicle range extending control strategy and the problem that power requirements, battery protection and efficiency are difficult to consider at the same time can be solved.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to a vehicle control method, a computer-readable storage medium, and a vehicle. Background Art

[0002] Hybrid electric vehicles (HEVs) integrate multiple power sources, including an engine, generator, drive motor, and battery. They can switch between various modes, including pure electric (EV), extended-range electric (EEV), and hybrid electric (HEV). To meet diverse driving needs, existing HEVs allow users to manually select energy management modes, such as pure electric priority, forced pure electric, intelligent hybrid, or battery conservation priority.

[0003] Currently, series-parallel hybrid configurations have become the mainstream hybrid vehicle due to their flexible mode switching. When implementing extended-range mode (where the engine generates electricity only and the vehicle is driven purely by electricity), existing technologies typically rely on setting a battery charge threshold (such as starting the engine at a low state of charge) or responding to acceleration demands to trigger engine start-stop. Extended-range electric vehicles are more popular with users because they offer a driving experience close to that of a pure electric vehicle in most operating conditions (such as fast response, quietness, and comfort).

[0004] However, existing extended-range control strategies are often simple or disconnected from other modes (such as engine direct drive). For example, the system may be forced to switch to direct drive mode during high-speed cruising, resulting in sudden changes in power characteristics and noise; or under continuous high load, a single power generation strategy is difficult to take into account power demand, battery protection and efficiency, affecting smoothness and quietness. Summary of the Invention

[0005] The embodiments of the present application provide a vehicle control method, a computer-readable storage medium, and a vehicle, aiming to improve the power characteristics and noise mutation problems in the existing hybrid electric vehicle range extension control strategy, as well as the problem of difficulty in balancing power requirements, battery protection, and efficiency.

[0006] The present application first provides a vehicle control method, applicable to a hybrid vehicle, comprising: setting a target operating mode in the vehicle; in response to the vehicle being set with the target operating mode, obtaining vehicle status information and / or driving demand information, wherein the target operating mode includes at least one sub-mode; and controlling the vehicle to operate in the corresponding sub-mode based on the vehicle status information and / or driving demand information. The status information includes at least the remaining battery charge of the vehicle, and the driving demand information includes at least one sub-mode selected by the user as a driving mode from among the sub-modes of the target operating mode, wherein the at least one sub-mode includes a motor drive sub-mode, an extended range sub-mode, a parking electric mode, and a brake energy recovery sub-mode.

[0007] In this application's control method, by responding to the target operating mode setting, real-time vehicle status information (such as battery charge) and driving demand information is collected, dynamically matching the optimal sub-mode operation. This method coordinates user preferences (such as the pursuit of a pure electric driving experience) with objective operating conditions, enabling the system to automatically switch between underlying operating sub-modes while maintaining the core experience of "super-extended range" (i.e., the target operating mode). For example, this method prioritizes motor torque output during rapid acceleration while optimizing power generation efficiency during cruising, thereby maintaining a consistent driving experience in complex scenarios. This method can improve the power characteristics and noise abruptness issues in existing hybrid vehicle range-extended control strategies, as well as the difficulty in balancing power requirements, battery protection, and efficiency.

[0008] In some embodiments, the vehicle includes at least an engine, a generator, a drive motor and a power battery; the vehicle also includes a non-target operating mode, and the non-target operating mode includes an engine direct drive sub-mode and a hybrid sub-mode; among them, the motor drive sub-mode is: the engine and the generator do not work, and the drive motor drives the wheels of the vehicle; the extended-range sub-mode is: the engine drives the generator to generate electricity, and the drive motor drives the wheels of the vehicle; the parking electric mode is: the engine drives the generator to generate electricity, and the drive motor does not work; the braking energy recovery sub-mode is: the engine and the generator do not work, and the drive motor charges the power battery; the engine direct drive sub-mode is: the engine drives the wheels of the vehicle, and the generator and the drive motor do not work; the hybrid sub-mode is: the engine drives the generator to generate electricity, and the engine and the drive motor jointly drive the wheels of the vehicle.

[0009] In some embodiments, the status information includes at least the remaining power of the power battery, and obtaining the status information of the vehicle includes: obtaining the remaining power of the power battery; correspondingly, controlling the vehicle to operate in a corresponding sub-mode according to the vehicle status information and / or driving demand information includes: controlling the vehicle to operate in a corresponding sub-mode according to the remaining power of the power battery.

[0010] In some embodiments, the status information includes at least the remaining power of the power battery, and the control method also includes: when the remaining power of the power battery drops to a preset range, controlling the engine to operate according to the optimal economic curve and drive the generator to generate electricity to charge the power battery; wherein the optimal economic curve is related to the engine speed and torque.

[0011] In some embodiments, the status information includes at least the remaining power of the power battery, and the control method also includes: when the remaining power of the power battery drops to a preset range, controlling the engine to operate according to the optimal economic curve and the preset speed curve, and driving the generator to generate electricity to charge the power battery; wherein the preset speed curve is related to the vehicle speed.

[0012] In some embodiments, setting the target operating mode includes: setting the target operating mode through a physical button; setting the target operating mode through the human-computer interaction interface of the vehicle-mounted terminal; setting the target operating mode through voice interaction with the vehicle-mounted terminal; setting the target operating mode through a mobile terminal that can communicate with the vehicle-mounted terminal.

[0013] In some embodiments, the vehicle includes at least a power battery, and the control method further includes: in response to the remaining power of the power battery being greater than or equal to a preset threshold, confirming that the vehicle is set to a target operating mode.

[0014] The present application also provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, a vehicle control method as in any embodiment of the present application is implemented.

[0015] In the computer-readable storage medium of the present application, by solidifying the above-mentioned control strategy algorithm in the storage medium, different vehicle models and platforms can realize the super-range extension function through the same program logic.

[0016] The present application also provides a vehicle, comprising at least a controller, wherein the controller is configured to execute a vehicle control method as described in any embodiment of the present application.

[0017] In the vehicle of the present application, the multi-sub-mode strategy described above is dynamically executed by the controller to improve the synchronization between the hardware response and the control strategy.

[0018] In some embodiments, the vehicle also includes an engine, a generator, a drive motor and a power battery; the vehicle can provide target operating modes and non-target operating modes, the target operating modes include motor drive sub-mode, extended range sub-mode, parking generator mode and brake energy recovery sub-mode, and the non-target operating modes include engine direct drive sub-mode and hybrid sub-mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a flowchart of a vehicle control method according to an embodiment of the present application.

[0020] Figure 2 It is a schematic diagram of the configuration of a vehicle according to an embodiment of the present application.

[0021] Figure 3 It is a schematic diagram of the configuration of a vehicle according to another embodiment of the present application.

[0022] Figure 4 This is a flowchart of a vehicle control method according to another embodiment of the present application.

[0023] Figure 5 It is a schematic diagram of the optimal economic curve of the engine of the embodiment of the present application.

[0024] Figure 6 This is a flowchart of a vehicle control method according to another embodiment of the present application.

[0025] Figure 7 It is a schematic diagram of a preset speed curve of the engine according to an embodiment of the present application.

[0026] Figure 8 This is a flowchart of a vehicle control method according to another embodiment of the present application.

[0027] Figure 9 It is a schematic diagram of the human-computer interaction interface of a vehicle according to an embodiment of the present application.

[0028] Figure 10 Schematic diagram of the relationship between the power level and mode setting of the power battery in an embodiment of the present application.

[0029] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects solved by this application more clearly understood, this application is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0031] Hybrid electric vehicles (HEVs), a key technology in the transition from traditional fuel vehicles to pure electric vehicles, typically utilize a powertrain consisting of multiple power sources, including an engine, generator, drive motor, and battery. This complex configuration enables the vehicle to switch between multiple operating modes, including electric vehicle (EV), extended-range electric vehicle (EEV), and hybrid electric vehicle (HEV) with direct engine involvement. Energy management control strategies, as core software technologies, coordinate the energy distribution and operating states of each power source, directly impacting the vehicle's fuel economy, power response, NVH (noise, vibration, and harshness) performance, and ride comfort, playing a key role in the user experience. To address diverse driving scenarios and user preferences, R&D teams have developed a variety of energy management modes, including those that allow the driver to manually select pure electric priority (prioritizing battery consumption), forced pure electric (maintaining pure electric driving), intelligent hybrid (automatically optimizing fuel and battery usage), or battery conservation priority (maintaining a high battery charge). These strategies aim to enhance the alignment of vehicle behavior with individual expectations through active user engagement.

[0032] Currently, the series-parallel configuration has become a mainstream hybrid technology solution due to its flexible mode switching capabilities. When implementing extended-range mode (where the engine only drives the generator for power generation, while the vehicle is driven by the electric motor), existing technologies primarily trigger engine start-stop by setting a battery charge threshold (such as starting the engine for power generation at low SOC) or responding to accelerator pedal pressure. Extended-range electric vehicles (EREVs) are popular with users because they offer driving characteristics similar to pure electric vehicles in most operating conditions: instantaneous torque response from electric drive, a quieter cabin environment, and a more linear acceleration feel.

[0033] However, the control logic of existing extended-range modes is often simplistic or significantly disconnected from other modes (such as parallel direct drive). For example, to balance fuel consumption and battery charge, the system may force a switch to engine direct drive mode under certain operating conditions (such as high-speed cruising), resulting in sudden changes in power output characteristics and noise. Alternatively, under sustained high loads, a single power generation strategy may struggle to simultaneously address power demand, battery protection, and power generation efficiency, impacting driving smoothness and quietness. These factors limit the consistency of the extended-range mode experience, making it difficult to fully meet users' expectations for a "pure electric driving experience."

[0034] To this end, the embodiments of the present application provide a vehicle control method, a computer-readable storage medium, and a vehicle, aiming to improve the power characteristics and noise mutation problems in the existing hybrid electric vehicle range extension control strategy, as well as the problem of difficulty in balancing power requirements, battery protection, and efficiency.

[0035] Figure 1 It is a flowchart of a vehicle control method according to an embodiment of the present application.

[0036] This application first provides a vehicle control method, including: Step S100: In response to the vehicle being set with a target operating mode, obtaining vehicle status information and / or driving demand information.

[0037] Among them, the target operating mode refers to the mode in which the engine does not participate in power output when the vehicle (hybrid electric vehicle) operates (even in high-speed cruising or climbing conditions, it will not be forced to switch to engine output power) to provide users with a "pure electric vehicle" driving experience. The target operating mode may include at least one sub-mode, and the at least one sub-mode includes a motor drive sub-mode, an extended-range sub-mode, a parking electric mode, and a brake energy recovery sub-mode. The vehicle of the embodiment of the present application can provide users with a target operating mode and can also provide a non-target operating mode. The non-target operating mode refers to the mode in which the engine can participate in power output (such as engine direct drive, or engine and drive motor hybrid drive) when the vehicle (hybrid electric vehicle) operates. The non-target operating mode may also include at least one sub-mode. Specifically, the non-target operating mode may include an engine direct drive sub-mode and a hybrid sub-mode. The engine direct drive sub-mode includes a first engine direct drive sub-mode and a second engine direct drive sub-mode, and the hybrid sub-mode includes a first hybrid sub-mode and a second hybrid sub-mode.

[0038] like Figure 1 As shown, the control method may further include: Step S200: controlling the vehicle to operate in a corresponding sub-mode according to the vehicle status information and / or driving demand information.

[0039] Through steps S100 and S200, the operating mode of the traditional vehicle is set to the target operating mode (also referred to as the "super extended-range mode" in the embodiment of the present application) and the non-target operating mode. The "super extended-range mode" can be set with one click, and the whole vehicle will shield the non-target operating mode in the target operating mode, so that the hybrid vehicle can obtain a driving experience similar to that of a pure electric vehicle. For example, under climbing conditions, the traditional hybrid vehicle will adopt engine direct drive or hybrid drive, while the pure electric vehicle adopts electric drive; after the improvement to the present application, the hybrid vehicle will shield direct drive / hybrid (non-target operating mode) in this mode and adopt electric drive completely, rather than forcibly switching to the engine to provide power.

[0040] Figure 2 It is a schematic diagram of the configuration of a vehicle according to an embodiment of the present application.

[0041] In the embodiments of this application, Figure 2As shown, the vehicle may include at least an engine 1, a generator 12, a drive motor 18, a clutch 8, a brake 3 and a power battery (not shown). In addition, the vehicle may also include a torsional vibration damper and a first shaft 2, a planetary gear mechanism, a planetary carrier 4, a sun gear 5, a planetary gear 6, a ring gear 7, a first gear 9, a second gear 10, a second shaft 11, a third gear 13, a fourth gear 14, a third shaft 15, a fifth gear 16, a fourth shaft 17, a sixth gear 19 and a differential 20, wherein the engine 1 is connected to the torsional vibration damper and the first shaft 2, the generator 12 is connected to the first shaft 2 through the second shaft 11, the third gear 10 and the second gear 9, the drive motor 18 is connected to the fourth shaft 17, and the brake 3 brakes the sun gear of the planetary gear mechanism. At this time, the planetary gear mechanism is equivalent to a fixed-axis gear mechanism to achieve a fixed speed ratio transmission. The clutch 8 will lock the planetary gears and the ring gear of the planetary gear mechanism to achieve speed ratio switching. Table 1 is a diagram of the present application. Figure 2 The different sub-modes of the embodiment correspond to the execution actions of the execution components and execution elements.

[0042] Table 1 As shown in Table 1, the motor drive submode is as follows: the brake and clutch are disengaged, the engine and generator are inoperative, and the drive motor drives the vehicle's wheels. The extended-range submode is as follows: the brake and clutch are disengaged, the engine drives the generator to generate electricity, and the drive motor drives the vehicle's wheels. The parking electric mode is as follows: the brake and clutch are disengaged, the engine drives the generator to generate electricity, and the drive motor is inoperative. The brake energy regeneration submode is as follows: the brake and clutch are disengaged, the engine and generator are inoperative, and the drive motor charges the power battery. The first engine direct drive submode is as follows: the brake is engaged, the clutch is disengaged, the engine drives the vehicle's wheels, and the generator and drive motor are inoperative. The second engine direct drive submode is as follows: the brake is disengaged, the clutch is engaged, the engine drives the vehicle's wheels, and the generator and drive motor are inoperative. The first hybrid submode is as follows: the brake is engaged, the clutch is disengaged, the engine drives the generator to generate electricity, and the engine and drive motor jointly drive the vehicle's wheels. The second hybrid submode is as follows: the brake is disengaged, the clutch is engaged, the engine drives the generator to generate electricity, and the engine and drive motor jointly drive the vehicle's wheels.

[0043] As you can understand, in the electric motor drive sub-mode, the engine's mechanical connection is completely severed, allowing the drive motor to independently drive the wheels. This delivers a fuel-efficient, noise-free, all-electric driving experience, perfect for short commutes. In the extended-range sub-mode, the engine serves solely as a range extender for generating electricity, while the drive motor remains the sole power source. This reduces the vibration and noise associated with engine speed and vehicle speed, preserving the linear response characteristics of pure electric drive. In the parked electric mode, the engine's high-efficiency range is utilized to generate electricity when the vehicle is stationary, mitigating the NVH (Noise, Vibration, and Harshness) fluctuations associated with charging in traditional hybrid vehicles while driving, enhancing charging comfort. In the brake energy regeneration sub-mode, kinetic energy is converted into stored electrical energy, improving energy utilization while maintaining consistent brake pedal force and reducing the jerkiness experienced when traditional mechanical brakes are engaged. The first / second engine direct drive sub-modes (using the brake / clutch to achieve two mechanical connection paths) and the first / second hybrid sub-modes provide redundant power for special driving conditions such as highways. However, in the super extended-range mode, their activation conditions are strictly limited to ensure that the user-driven all-electric driving experience is not accidentally interrupted.

[0044] Figure 3 It is a schematic diagram of the configuration of a vehicle according to another embodiment of the present application.

[0045] In other embodiments, Figure 3 As shown, the vehicle may include at least an engine 1, a generator 5, a drive motor 7, a clutch 3 and a power battery (not shown). In addition, the vehicle may also include a torque damper 2, a primary gear 4, an intermediate shaft 6 and a differential 8. Table 2 is the information provided in this application. Figure 3 The different sub-modes of the embodiment correspond to the execution actions of the execution components and execution elements.

[0046] Table 2 As shown in Table 2, non-target operating modes may include hybrid sub-modes, and target operating modes may include motor drive sub-modes, range extension sub-modes, parking generator mode, and brake energy recovery sub-modes. The motor drive sub-mode is as follows: the clutch is disengaged, the engine and generator do not work, and the drive motor drives the vehicle's wheels. The range extension sub-mode is as follows: the clutch is disengaged, the engine drives the generator to generate electricity, and the drive motor drives the vehicle's wheels. The parking generator mode is as follows: the clutch is disengaged, the engine drives the generator to generate electricity, and the drive motor does not work. The brake energy recovery sub-mode is as follows: the clutch is disengaged, the engine and generator do not work, and the drive motor charges the power battery. The hybrid sub-mode is as follows: the clutch is disengaged, the engine drives the generator to generate electricity, and the engine and drive motor jointly drive the vehicle's wheels.

[0047] In some embodiments, the status information may include at least the remaining power of the power battery, and step S100 may specifically include: obtaining the remaining power of the power battery. Correspondingly, step S200 may specifically include: controlling the vehicle to operate in a corresponding sub-mode according to the remaining power of the power battery.

[0048] In some embodiments, the driving demand information may include at least one sub-mode selected by the user from among the sub-modes of the target operating mode as the driving mode.

[0049] Figure 4 This is a flowchart of a vehicle control method according to another embodiment of the present application. Figure 5 It is a schematic diagram of the optimal economic curve of the engine of the embodiment of the present application.

[0050] In some embodiments, the status information includes at least the remaining power of the power battery, such as Figure 4 As shown, the control method may further include: Step S300: When the remaining power of the power battery drops to a preset range, the engine is controlled to operate according to the optimal economic curve and drive the generator to generate electricity to charge the power battery.

[0051] Among them, such as Figure 5 As shown, the optimal economy curve is related to the engine (APU) speed and torque. In this case, when the battery charge drops to a preset range (for example, 40% to 45%), the engine is operated according to the optimal economy curve. Based on the speed-torque mapping, the engine's most efficient operating point is locked for power generation, minimizing fuel consumption for the same battery charge.

[0052] Figure 6 This is a flowchart of a vehicle control method according to another embodiment of the present application. Figure 7 It is a schematic diagram of a preset speed curve of the engine according to an embodiment of the present application.

[0053] In some embodiments, the status information includes at least the remaining power of the power battery, such as Figure 6 As shown, the control method may further include: Step S400: When the remaining power of the power battery drops to a preset range, the engine is controlled to operate according to the optimal economic curve and the preset speed curve, and the generator is driven to generate electricity to charge the power battery.

[0054] Among them, such as Figure 7 As shown, the preset speed curve (also called the "speed limit curve") is dependent on vehicle speed. In this case, by overlaying the speed-dependent preset speed curve, the generator speed is dynamically adjusted based on the actual vehicle speed (e.g., reducing the speed at low speeds). This reduces the resonance noise associated with fixed-speed generators in the low-speed range, optimizing quietness across the entire speed range.

[0055] Figure 8 This is a flowchart of a vehicle control method according to another embodiment of the present application. Figure 9 It is a schematic diagram of the human-computer interaction interface of a vehicle according to an embodiment of the present application. Figure 10 Schematic diagram of the relationship between the power level and mode setting of the power battery in an embodiment of the present application.

[0056] In some embodiments, as Figure 8 As shown, the control method may further include: Step S001: Set the target operating mode.

[0057] The methods for setting the target operating mode include: setting the target operating mode through physical buttons; setting the target operating mode through the human-computer interaction interface of the vehicle terminal; setting the target operating mode through voice interaction with the vehicle terminal; setting the target operating mode through a mobile terminal that can communicate with the vehicle terminal. In this case, the user can directly trigger the mode switch through the physical buttons of the vehicle system; or through the human-computer interaction interface of the vehicle terminal (such as Figure 9 The system can be configured by selecting a preset mode on the central control touchscreen (shown in the figure); interacting with the vehicle system through voice commands to complete the setting; or remotely activating the target mode using a mobile device (such as a mobile app) connected to the vehicle terminal. This multimodal interaction design covers four scenarios: in-vehicle physical operation, screen touch, voice control, and mobile remote management, meeting the needs of quick setup in different usage habits and environments.

[0058] In some embodiments, as Figure 8 As shown, the control method may further include: Step S002: In response to the remaining power of the power battery being greater than or equal to a preset threshold, confirming that the vehicle is set to a target operating mode.

[0059] In step S500, the target operating mode is activated only when the battery charge is above a preset threshold (e.g., 40%). This ensures the required energy reserve for "super range extension." This reduces the limitations on low-battery mode functions (such as forced engine start for direct drive), ensuring that the user-selected mode (super range extension mode) fully covers the expected driving mileage and enhances the user experience.

[0060] In some embodiments, the preset threshold can be set according to the overall performance of the vehicle. For example, the preset threshold can also be set to 35%, 45%, 50% or 60%.

[0061] In some embodiments, when the vehicle is already operating in the target operating mode (i.e., in the super-range extended mode), and the power level of the power battery (hereinafter referred to as "battery") is above a preset threshold (e.g., 40%), the vehicle may perform energy management control, for example, Figure 10As shown, the vehicle can perform high-voltage energy management and brake energy recovery, etc.

[0062] In some embodiments, when the vehicle is not operating in the target operating mode (i.e., exiting the super-range extended mode), the power level of the power battery is below a preset threshold (e.g., 40%), and the vehicle can be driven as a normal hybrid vehicle, for example, Figure 10 As shown, the vehicle can remind the user of the remaining power or shut down related energy-consuming devices and equipment.

[0063] In this application's control method, by responding to the target operating mode setting, real-time vehicle status information (such as battery charge) and driving demand information is collected, dynamically matching the optimal sub-mode operation. This method coordinates user preferences (such as the pursuit of a pure electric driving experience) with objective operating conditions, enabling the system to automatically switch between underlying operating sub-modes while maintaining the core experience of "super-extended range" (i.e., the target operating mode). For example, this method prioritizes motor torque output during rapid acceleration while optimizing power generation efficiency during cruising, thereby maintaining a consistent driving experience in complex scenarios. This method can improve the power characteristics and noise abruptness issues in existing hybrid vehicle range-extended control strategies, as well as the difficulty in balancing power requirements, battery protection, and efficiency.

[0064] The present application also provides a computer-readable storage medium (not shown), in which a computer program is stored. When the computer program is executed by a processor, a vehicle control method as in any embodiment of the present application is implemented.

[0065] In the computer-readable storage medium of the present application, by solidifying the above-mentioned control strategy algorithm in the storage medium, different vehicle models and platforms can realize the super-range extension function through the same program logic.

[0066] This application also provides a vehicle (not shown) that may include at least a controller configured to execute the vehicle control method according to any of the embodiments of this application. In the vehicle of this application, the controller dynamically executes the aforementioned multi-sub-mode strategy, thereby improving the synchronization between hardware response and control strategy.

[0067] In some embodiments, the vehicle further includes an engine, a generator, a drive motor, and a power battery. The vehicle can provide target operating modes and non-target operating modes. The target operating modes include a motor drive sub-mode, an extended range sub-mode, a parking generator mode, and a brake energy recovery sub-mode. The non-target operating modes include an engine direct drive sub-mode and a hybrid sub-mode. Furthermore, the target operating modes and non-target operating modes that can be provided by the vehicle in the embodiments of the present application can be specifically described in any of the above-mentioned control method embodiments and are not further elaborated here.

[0068] In this application, "a plurality" refers to two or more than two. In this application, unless otherwise expressly defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0069] The terms "first," "second," "third," and "fourth," etc. (if any) in this application are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. The term "and / or" in this application simply describes an association relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0070] Unless otherwise specified, all steps of the present application may be performed sequentially or randomly. For example, a statement that the method includes steps A and B indicates that the method may include steps A and B performed sequentially, or steps B and A performed sequentially. For example, a statement that the method may also include step C indicates that step C may be added to the method in any order, for example, the method may include steps A, B, and C, or steps A, C, and B, or steps C, A, and B, etc.

[0071] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A vehicle control method, applied to a hybrid vehicle, characterized in that: The control method includes: setting a target operating mode in the vehicle; acquiring state information and / or driving demand information of the vehicle in response to the vehicle being set with the target operating mode, the target operating mode including at least one sub-mode; controlling the vehicle to operate in the corresponding sub-mode according to the vehicle status information and / or the driving demand information; Among them, the status information includes at least the remaining power of the vehicle, and the driving demand information may at least include the user selecting at least one sub-mode from the sub-modes of the target operating mode as the driving mode, and the at least one sub-mode includes a motor drive sub-mode, an extended-range sub-mode, a parking electric mode, and a brake energy recovery sub-mode.

2. The vehicle control method according to claim 1, characterized in that: The vehicle includes at least an engine, a generator, a drive motor and a power battery; the vehicle also includes a non-target operating mode, and the non-target operating mode includes an engine direct drive sub-mode and a hybrid sub-mode; wherein, The motor drive sub-mode is: the engine and the generator are not working, and the drive motor drives the wheels of the vehicle; The extended-range sub-mode is: the engine drives the generator to generate electricity, and the drive motor drives the wheels of the vehicle; The parking electric mode is: the engine drives the generator to generate electricity, and the drive motor does not work; The braking energy recovery sub-mode is as follows: the engine and the generator are not working, and the drive motor charges the power battery; The engine direct drive sub-mode is: the engine drives the wheels of the vehicle, and the generator and the drive motor are not working; The hybrid sub-mode is: the engine drives the generator to generate electricity, and the engine and the drive motor jointly drive the wheels of the vehicle.

3. The vehicle control method according to claim 2, characterized in that: The state information includes at least the remaining power of the power battery, and obtaining the state information of the vehicle includes: Obtaining the remaining power of the power battery; Correspondingly, controlling the vehicle to operate in the corresponding sub-mode according to the vehicle status information and / or the driving demand information includes: The vehicle is controlled to operate in the corresponding sub-mode according to the remaining power of the power battery.

4. The vehicle control method according to claim 2, characterized in that: The state information includes at least the remaining power of the power battery, and the control method further includes: When the remaining power of the power battery drops to a preset range, controlling the engine to operate according to the optimal economic curve and driving the generator to generate electricity to charge the power battery; The optimal economic curve is related to the speed and torque of the engine.

5. The vehicle control method according to claim 2, characterized in that: The state information includes at least the remaining power of the power battery, and the control method further includes: When the remaining power of the power battery drops to a preset range, controlling the engine to operate according to an optimal economy curve and a preset speed curve, and driving the generator to generate electricity to charge the power battery; The preset speed curve is related to the speed of the vehicle.

6. The vehicle control method according to claim 1, characterized in that: Setting a target operating mode in the vehicle includes: Setting the target operating mode by physical buttons; Setting the target operating mode through the human-computer interaction interface of the vehicle terminal; Setting the target operating mode through voice interaction with the vehicle-mounted terminal; The target operating mode is set by a mobile terminal capable of communicating with the vehicle-mounted terminal.

7. The vehicle control method according to claim 1, characterized in that: The vehicle includes at least a power battery, and the control method further includes: In response to the remaining power of the power battery being greater than or equal to a preset threshold, it is confirmed that the vehicle is set to the target operating mode.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the vehicle control method according to any one of claims 1 to 7 is implemented.

9. A vehicle, characterized in that: The vehicle control method comprises at least a controller configured to execute the vehicle control method according to any one of claims 1 to 7.

10. The vehicle according to claim 9, characterized in that The vehicle also includes an engine, a generator, a drive motor and a power battery; the vehicle can provide a target operating mode and a non-target operating mode, the target operating mode includes a motor drive sub-mode, an extended range sub-mode, a parking generator mode and a brake energy recovery sub-mode, and the non-target operating mode includes an engine direct drive sub-mode and a hybrid sub-mode.

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