Control method and device, storage medium, vehicle control unit and vehicle

Abstract

The embodiment of the invention provides a control method and device, a storage medium, a vehicle control unit and a vehicle, and the method comprises the steps: determining a driving mode as a first mode or a second mode according to an obtained first parameter based on a vehicle mode; if it is determined that the running mode is the first mode, determining that the driving mode is a battery driving mode and controlling the vehicle to run in the battery driving mode; if it is determined that the driving mode is the second mode, it is determined that the driving mode is the battery driving mode or the engine driving mode according to the second parameter, the vehicle is controlled to run in the determined battery driving mode or the engine driving mode, and therefore the driving mode of the vehicle can be automatically adjusted according to the vehicle condition. Whether the engine is started in advance to run in the engine driving mode or not is determined based on the running mode of the vehicle and the multiple parameters, the power requirement of the vehicle can be guaranteed, oil consumption of the vehicle is reduced, the complex running environment is met, attenuation of the service life of a battery is delayed, and the maintenance cost of the battery is reduced.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a control method, a device, a storage medium, a vehicle controller and a vehicle. Background Art

[0002] As the number of new energy hybrid models increases, the market has reported that new energy hybrid vehicles have problems such as insufficient battery retention, low battery power, and limited battery discharge power during driving, which leads to a significant reduction in the driving power of the vehicle and causes customer complaints.

[0003] The mainstream battery power conservation strategy for new energy hybrid vehicles now is to start the engine to generate electricity only after the battery power is consumed below a certain threshold, which cannot cope with complex and changeable driving conditions. When the engine cannot quickly generate electricity to replenish the battery, the discharge power of the low-power battery is limited, the vehicle power decreases, and it will not be able to meet the user's subsequent high-speed driving needs. If the battery power is in a low SOC state for a long time, the battery life will also be discounted, increasing the customer's battery maintenance costs. Summary of the invention

[0004] In view of this, the present invention provides a control method, a device, a storage medium, a vehicle controller and a vehicle, so as to solve the problem in the prior art that the battery life is greatly reduced and the customer's battery maintenance cost is increased.

[0005] In a first aspect, an embodiment of the present invention provides a control method, including:

[0006] Based on the acquired vehicle mode, determining the driving mode as the first mode or the second mode according to the acquired first parameter;

[0007] If it is determined that the driving mode is the first mode, then determining that the driving mode is the battery driving mode and controlling the vehicle to travel in the battery driving mode;

[0008] If it is determined that the driving mode is the second mode, the driving mode is determined to be the battery driving mode or the engine driving mode according to the acquired second parameter and the vehicle is controlled to travel in the determined battery driving mode or the engine driving mode.

[0009] In a possible implementation, the first parameter includes a first driving parameter or a second driving parameter, and the vehicle mode includes a first mode or a second mode; and determining the driving mode as the first mode or the second mode based on the acquired vehicle mode and the acquired driving parameter includes:

[0010] Based on the vehicle mode being the first mode, determining the driving mode to be the first mode or the second mode according to the first driving parameter; or,

[0011] Based on the vehicle mode being the second mode, the driving mode is determined to be the first mode or the second mode according to the second driving parameter.

[0012] In a possible implementation, the second parameter includes an external environment value, an initial power conservation value, and a gear position, the second parameter also includes a first acquisition parameter or a second acquisition parameter, the gear position includes a first gear position or a second gear position, and the engine driving mode includes a first series mode, a second series mode, or a parallel mode; determining that the driving mode is a battery driving mode or an engine driving mode according to the acquired third parameter and controlling the vehicle to travel in the determined battery driving mode or the engine driving mode includes:

[0013] generating a power conservation target value according to the external environment value and the initial power conservation value;

[0014] Determining whether the gear position is the first gear position or the second gear position;

[0015] If it is determined that the gear position is the first gear position, determining that the driving mode is the battery driving mode or the first series driving mode according to the first acquired parameter and the power conservation target value, and controlling the vehicle to travel in the determined battery driving mode or the first series driving mode;

[0016] If it is determined that the gear is the second gear, the driving mode is determined to be the battery driving mode, the second series mode or the parallel mode according to the second acquisition parameter and the power conservation target value, and the vehicle is controlled to travel in the determined battery driving mode, the second series mode or the parallel mode.

[0017] In a possible implementation, the second acquired parameter includes a power conservation mode and a first power conservation parameter; determining the driving mode as a battery driving mode, a second series mode, or a parallel mode according to the second acquired parameter and the power conservation target value and controlling the vehicle to travel in the determined battery driving mode, the second series mode, or the parallel mode includes:

[0018] Based on the power conservation mode, determining whether the first power conservation parameter and the power conservation target value meet a first condition;

[0019] If it is determined that the first power conservation parameter and the power conservation target value do not meet the first condition, determining that the driving mode is the battery driving mode, and controlling the vehicle to travel in the battery driving mode;

[0020] If it is determined that the first power conservation parameter and the power conservation target value meet the first condition, the driving mode is determined to be the second series mode, and the vehicle is controlled to travel in the second series mode.

[0021] In a possible implementation, the second acquired parameter further includes a second power conservation parameter; and after the controlling the vehicle to travel in the second series mode, the method further includes:

[0022] Based on the power conservation mode and the driving mode being the second series mode, determining whether the second power conservation parameter meets a second condition;

[0023] If it is determined that the second power conservation parameter does not meet the second condition, determining that the driving mode is the second series mode, and executing the step of controlling the vehicle to travel in the second series mode;

[0024] If it is determined that the second power conservation parameter meets the second condition, the driving mode is determined to be the parallel mode, and the vehicle is controlled to travel in the parallel mode.

[0025] In a possible implementation, the second acquired parameter further includes a third power conservation parameter; and after the controlling the vehicle to travel in the parallel mode, the method further includes:

[0026] Based on the power conservation mode and the driving mode being the parallel mode, determining whether the third power conservation parameter meets a third condition;

[0027] If it is determined that the third power conservation parameter meets the third condition, determining that the driving mode is the second series mode, and executing the step of controlling the vehicle to travel in the second series mode;

[0028] If it is determined that the third power conservation parameter does not meet the third condition, the driving mode is determined to be the parallel mode, and the step of controlling the vehicle to travel in the parallel mode is executed.

[0029] In a second aspect, an embodiment of the present invention provides a control device, including:

[0030] A first determination module, configured to determine, based on the acquired vehicle mode, whether the driving mode is the first mode or the second mode according to the acquired first parameter;

[0031] a second determination module, configured to determine that the driving mode is a battery driving mode and control the vehicle to travel in the battery driving mode if the first determination module determines that the driving mode is the first mode;

[0032] The third determination module is used to determine that the driving mode is the battery driving mode or the engine driving mode according to the acquired second parameter if the first determination module determines that the driving mode is the second mode, and control the vehicle to drive in the determined battery driving mode or the engine driving mode.

[0033] In a third aspect, an embodiment of the present invention provides a vehicle controller, comprising a memory for storing computer program instructions and a processor for executing the program instructions, wherein when the computer program instructions are executed by the processor, the vehicle controller is triggered to execute any one of the methods described in the first aspect.

[0034] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium includes a stored program, wherein when the program is running, the device where the computer-readable storage medium is located is controlled to execute any method described in the first aspect.

[0035] In a fifth aspect, an embodiment of the present invention provides a vehicle, the vehicle comprising a vehicle controller, a battery module and an engine module;

[0036] A vehicle controller is used to determine, based on the acquired vehicle mode, whether the driving mode is the first mode or the second mode according to the acquired first parameter; if the driving mode is determined to be the first mode, then the driving mode is determined to be the battery driving mode and the battery module is controlled to make the vehicle drive in the battery driving mode; if the driving mode is determined to be the second mode, then according to the acquired second parameter, the driving mode is determined to be the battery driving mode and the battery module is controlled to make the vehicle drive in the battery driving mode, or the driving mode is determined to be the engine driving mode and the battery module and the engine module are controlled to make the vehicle drive in the engine driving mode.

[0037] By adopting the solution provided by the embodiment of the present invention, based on the acquired vehicle mode, the driving mode is determined to be the first mode or the second mode according to the acquired first parameter; if the driving mode is determined to be the first mode, the driving mode is determined to be the battery driving mode and the vehicle is controlled to drive in the battery driving mode; if the driving mode is determined to be the second mode, the driving mode is determined to be the battery driving mode or the engine driving mode according to the acquired second parameter and the vehicle is controlled to drive in the determined battery driving mode or the engine driving mode, so that the driving mode of the vehicle can be automatically adjusted according to the vehicle condition, and whether to start the engine in advance to drive in the engine driving mode can be determined based on the driving mode of the vehicle and multiple parameters, which can ensure the power demand of the vehicle, reduce the fuel consumption of the vehicle and meet the complex driving environment, delay the attenuation of the battery life, and reduce the maintenance cost of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 A flow chart of a control method provided by an embodiment of the present invention;

[0040] Figure 2 A flow chart for determining a driving mode provided by an embodiment of the present invention;

[0041] Figure 3 A schematic diagram of a flow chart of a hybrid vehicle power conservation strategy provided by an embodiment of the present invention;

[0042] Figure 4 A flow chart for determining a driving mode provided by an embodiment of the present invention;

[0043] Figure 5 Another flow chart for determining a driving mode provided by an embodiment of the present invention;

[0044] Figure 6 A schematic diagram of the structure of a control device provided by an embodiment of the present invention;

[0045] Figure 7 A schematic diagram of the structure of a vehicle controller provided by an embodiment of the present invention;

[0046] Figure 8 A schematic structural diagram of a vehicle provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0047] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0048] It should be clear that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0049] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0050] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0051] Figure 1A flow chart of a control method provided by an embodiment of the present invention is as follows: Figure 1 As shown, the method includes:

[0052] Step 10: The vehicle controller determines whether the driving mode is the first mode or the second mode based on the acquired vehicle mode and the acquired first parameter. If the vehicle mode is determined to be the first mode, step 20 is executed; if the vehicle mode is determined to be the first mode, step 30 is executed.

[0053] In an embodiment of the present invention, the method described in the present invention can be applied to the VCU of a vehicle, wherein the vehicle includes a hybrid vehicle. Before step 10, it also includes: the vehicle is powered on, and the vehicle controller determines whether the vehicle is in a drivable state; if it is determined that the vehicle is not in a drivable state, the vehicle is controlled to be powered on again; if it is determined that the vehicle is in a drivable state, the vehicle mode is obtained. The vehicle also includes an on-board system and a vehicle power-on identification module, the on-board system is used to obtain the vehicle mode and send the vehicle mode to the vehicle controller; the vehicle power-on identification module is used to identify whether the vehicle is powered on; for example, the on-board system includes an in-vehicle infotainment system (In-Vehicle Infotainment, IVI), the vehicle power-on identification module includes a vehicle power-on light, when the vehicle is powered on, the vehicle power-on light is in a light-emitting state; after the vehicle is powered on, the vehicle power-on identification module is in a light-emitting state, indicating that the vehicle has a driving function, and the user can set the vehicle mode of the vehicle through the on-board system, and the vehicle mode includes a first mode or a second mode; the on-board system sends the vehicle mode set by the user to the vehicle controller based on the vehicle mode set by the user. However, the vehicle mode obtained by the vehicle controller may be a vehicle mode set by the user, or may be a default vehicle mode after the vehicle is powered on. In the embodiment of the present invention, the source of the vehicle mode obtained by the vehicle controller is not limited.

[0054] The vehicle can be powered by fuel and / or electric energy as energy. The first mode indicates that the vehicle is powered by electric energy as energy, for example, the first mode includes an electric vehicle (EV) mode. The second mode indicates that the vehicle is powered by fuel and / or electric energy as energy, for example, the second mode includes a hybrid electric vehicle (HEV) mode. The vehicle also includes a battery and / or an engine, and the vehicle can be powered by the electric energy provided by the battery and / or the kinetic energy generated by the fuel used by the engine.

[0055] Step 20: The vehicle controller determines that the driving mode is the battery driving mode and controls the vehicle to travel in the battery driving mode.

[0056] In an embodiment of the present invention, the driving mode may include multiple vehicle driving modes, for example, the battery includes a power battery, the vehicle also includes a drive motor, and the driving mode includes three vehicle driving modes; the power source of the first vehicle driving mode mainly includes the power battery supplying power to the drive motor, and the drive motor drives the vehicle to travel; the second vehicle driving mode is a mode in which the engine generates electricity to charge the power battery, the power battery supplies power to the drive motor, and the drive motor drives the vehicle to travel; the third vehicle driving mode is a mode in which the generator participates in the vehicle driving, and the engine generates electricity to charge the power battery, or the third vehicle driving mode is a mode in which the engine only drives the vehicle to travel but does not need to supply power to the drive motor. The battery driving mode includes the above-mentioned first vehicle driving mode. For example, the vehicle controller controls the power battery and the drive motor to make the vehicle travel according to the first vehicle driving mode.

[0057] Step 30: The vehicle controller determines that the driving mode is the battery driving mode or the engine driving mode according to the acquired second parameter and controls the vehicle to travel in the determined battery driving mode or the engine driving mode.

[0058] In an embodiment of the present invention, the vehicle controller controls the vehicle to travel in the battery drive mode if it is determined that the drive mode is the battery drive mode based on the acquired second parameter; if it is determined that the drive mode is the engine drive mode, the vehicle controller controls the vehicle to travel in the engine drive mode.

[0059] The vehicle also includes an engine management system (EMS), a generator control unit (GCU), a motor control unit (MCU) and a battery management system (BMS). When the vehicle controller determines the driving mode, the vehicle controller controls at least one of the EMS, GCU, MCU and BMS to enable the vehicle to drive in a battery driving mode or an engine driving mode. The engine driving mode includes the second vehicle driving mode or the third vehicle driving mode mentioned above.

[0060] An embodiment of the present invention provides a control method, which determines whether the driving mode is the first mode or the second mode based on the acquired vehicle mode and the first parameter acquired; if the driving mode is determined to be the first mode, the driving mode is determined to be the battery driving mode and the vehicle is controlled to drive in the battery driving mode; if the driving mode is determined to be the second mode, the driving mode is determined to be the battery driving mode or the engine driving mode according to the acquired second parameter and the vehicle is controlled to drive in the determined battery driving mode or the engine driving mode, so that the driving mode of the vehicle can be automatically adjusted according to the vehicle condition, and whether it is necessary to start the engine in advance to drive in the engine driving mode can be determined based on the driving mode of the vehicle and multiple parameters, which can ensure the power demand of the vehicle, reduce the fuel consumption of the vehicle and meet the complex driving environment, delay the attenuation of the battery life, and reduce the maintenance cost of the battery.

[0061] In a possible implementation, the first parameter includes a first driving parameter or a second driving parameter, and the vehicle mode includes a first mode or a second mode; step 10 may specifically include: step 101, the vehicle controller determines that the driving mode is the first mode or the second mode based on the first driving parameter based on the vehicle mode being the first mode.

[0062] In the embodiment of the present invention, the vehicle mode acquired by the vehicle controller is the first mode, but the vehicle controller also needs to determine whether the vehicle is traveling in the first mode according to the first driving parameter. The first driving parameter includes a first judgment parameter and a second judgment parameter, and step 101 may include: the vehicle controller determines whether the driving mode is the first mode according to the first judgment parameter or determines whether the driving mode is the second mode according to the second judgment parameter; the first judgment parameter includes at least two of the SOC value, the vehicle speed value, the pedal opening, and the pedal duration; the second judgment parameter includes at least one of the SOC value, the vehicle speed value, the pedal opening, and the pedal duration. Figure 2 A flow chart for determining a driving mode is provided in an embodiment of the present invention, such as Figure 2 As shown, step 101 may specifically include:

[0063] Step 1011: The vehicle controller determines whether the SOC value is less than the first power threshold value. If so, execute step 1015; if not, execute step 1012.

[0064] In the embodiment of the present invention, the SOC value includes a current power value, an average power value or a weighted power value within a period of time, etc. In the embodiment of the present invention, the specific meaning of the SOC value is not limited.

[0065] Figure 3 A schematic diagram of a hybrid vehicle power conservation strategy provided by an embodiment of the present invention, such as Figure 3As shown, the vehicle includes an IVI and a VCU. When the vehicle is powered on, the VCU determines whether the vehicle is in a drivable state. For example, if the vehicle power-on identification module is in a light-emitting state, it means that the vehicle has the driving function and is in a drivable state. The IVI sends the current vehicle mode and the set SOC power conservation target value to the VCU. The vehicle mode can be HEV mode or EV mode. The setting range of the power conservation target value is greater than or equal to 10% and less than or equal to 90%. After receiving the current vehicle mode, the VCU determines whether the vehicle mode is the HEV mode; if the vehicle mode is determined to be the HEV mode, the VCU determines whether the vehicle is traveling in the EV mode or the HEV mode based on the SOC value, wherein the vehicle traveling in the EV mode is traveling in the first driving mode mentioned above, while the vehicle traveling in the HEV mode will select one driving mode from multiple driving modes; if the vehicle mode is determined to be the EV mode, the VCU determines whether the vehicle is traveling in the EV mode or the HEV mode based on at least three of the SOC value, the vehicle speed value, the gas pedal opening, and the duration of the gas pedal opening being greater than 95%; when it is determined that the vehicle is traveling in the HEV mode, the set SOC power conservation target value is corrected based on the altitude pressure and the ambient temperature; determines whether the current gear is P / R / N; if the current gear is P / R / N, determines whether the vehicle is traveling in the EV mode or the engine is started and the vehicle is traveling in the engine series mode with idle power generation based on the SOC value and the corrected power conservation target value; if the current gear is D, the power conservation mode sent by the IVI is received, and the power conservation mode includes an intelligent power conservation mode or a forced power conservation mode mode; according to the power conservation mode, based on at least one of the SOC value, the vehicle speed value, the revised power conservation target value, and the accelerator pedal opening, it is determined that the vehicle is traveling in EV mode or the engine is started and traveling with power generation at the best efficiency point of the engine series mode, wherein the power conservation mode may be a power conservation mode provided by the IVI or a default power conservation mode, and the power conservation mode includes intelligent power conservation or forced power conservation, and in different power conservation modes, the thresholds corresponding to the SOC value, the vehicle speed value, the revised power conservation target value, and the accelerator pedal opening are different; if the vehicle is traveling with power generation at the best efficiency point of the engine series mode, then based on the vehicle speed value, it is determined that the vehicle continues to travel with power generation at the best efficiency point of the engine series mode or switches the engine series mode to the parallel mode and drives and generates power at the best efficiency point of the engine parallel mode; if the vehicle is driving and generating power at the best efficiency point of the engine parallel mode, then based on at least one of the accelerator pedal opening, the accelerator pedal change rate, and the vehicle speed value, it is determined that the vehicle is driving and generating power at the best efficiency point of the engine parallel mode or switches the engine parallel mode to the series mode and drives and generates power at the best efficiency point of the engine series mode.

[0066] like Figure 3 As shown, the first power threshold is 8%.

[0067] Step 1012: The vehicle controller determines whether the vehicle speed value is greater than the first vehicle speed threshold value. If so, execute step 1015; if not, execute step 1013.

[0068] In the embodiment of the present invention, the vehicle speed value includes the current vehicle speed value, the average vehicle speed value or the weighted vehicle speed value within a period of time, etc. The specific meaning of the vehicle speed value is not limited in the embodiment of the present invention. Figure 3 As shown, the first vehicle speed threshold is 125 kilometers per hour (km / h).

[0069] Step 1013: The vehicle controller determines whether the pedal opening is greater than the first opening threshold. If so, execute step 1014; if not, execute step 1016.

[0070] In the embodiment of the present invention, the pedal opening includes the ratio of the current pedal's moved angle to the rated moving angle or the complementary angle between the current pedal and the horizontal plane, wherein the pedal's moved angle may refer to the angle the pedal moves from the initial position to the current position, and the rated moving angle may refer to the maximum angle the pedal can move. The pedal includes an accelerator pedal, such as Figure 3 As shown, the pedal opening includes the accelerator pedal opening, and the first opening threshold is 95%.

[0071] Step 1014: The vehicle controller determines whether the pedal duration is greater than the first time threshold. If so, execute step 1015; if not, execute step 1016.

[0072] In the embodiment of the present invention, the pedal duration refers to the duration during which the pedal opening is greater than the first opening threshold. Figure 3 As shown, the first time threshold is 5 seconds (s).

[0073] Step 1015 , the vehicle controller determines whether the SOC value is greater than the second power threshold, if so, execute step 1016 ; if not, execute step 1017 .

[0074] In the embodiment of the present invention, Figure 3 As shown, the second power threshold is 99%. The first power threshold is less than the second power threshold.

[0075] Step 1016: The vehicle controller determines that the driving mode is the first mode.

[0076] In an embodiment of the present invention, in order to ensure the battery power, the vehicle controller determines that the vehicle can travel in the first mode according to at least two parameters among the SOC value, vehicle speed value, pedal opening and pedal duration in this order, thereby ensuring the battery power of the vehicle and ensuring the power demand and power of the vehicle.

[0077] Step 1017: The vehicle controller determines that the driving mode is the second mode.

[0078] In the embodiment of the present invention, when the vehicle mode is the first mode, in order to ensure the battery power, the vehicle controller can automatically switch the first mode to the second mode according to the SOC value being less than the first power threshold, the vehicle speed value being greater than the first vehicle speed threshold and the SOC value being less than or equal to the second power threshold, or the pedal opening being greater than the first opening threshold and the pedal duration being greater than the first time threshold and the SOC value being less than or equal to the second power threshold, so as to avoid the battery power being consumed too low or too quickly under pure electric driving conditions when the battery power is low or the vehicle has a high power demand, thereby delaying the battery life decay.

[0079] Or step 10 may specifically include: step 102, the vehicle controller determines that the driving mode is the first mode or the second mode according to the second driving parameter based on the vehicle mode being the second mode.

[0080] In the embodiment of the present invention, the vehicle mode acquired by the vehicle controller is the second mode, but the vehicle controller also needs to determine whether the vehicle is traveling in the second mode according to the second driving parameter. The second driving parameter includes the SOC value. The vehicle controller executes the above steps 1015 to 1017 to determine the driving mode.

[0081] In a possible implementation, the second parameter includes an external environment value, an initial power conservation value, and a gear position, the second parameter also includes a first acquisition parameter or a second acquisition parameter, the gear position includes a first gear position or a second gear position, and the engine driving mode includes a first series mode, a second series mode, or a parallel mode; Figure 4 A flowchart for determining a driving mode is provided in an embodiment of the present invention, such as Figure 4 As shown, step 20 may specifically include:

[0082] Step 201: The vehicle controller generates a power conservation target value according to an external environment value and an initial power conservation value.

[0083] In the embodiment of the present invention, the external environment value includes the altitude pressure value and / or the ambient temperature value. Under low temperature conditions, the battery power will decay rapidly as the temperature decreases. After the battery power is lower than a certain threshold, when the battery cell temperature drops to a certain temperature due to a long period of suspension, the discharge performance of the battery will drop significantly at low temperatures and low power, and the vehicle may be unable to drive. Under high altitude conditions, after the battery is lower than a certain threshold, the engine power generation efficiency decreases due to the high altitude, and the engine power generation is difficult to meet the high power demand of the vehicle, resulting in battery power feeding. Therefore, the external environment value includes the altitude pressure value and / or the ambient temperature value, taking into account the impact of the complex driving environment on power conservation. The initial power conservation value includes the power conservation target value set by the user or the default power conservation target value, such as Figure 3As shown, the initial power conservation value is within the range of greater than or equal to 10% and less than or equal to 90%. In the embodiment of the present invention, the initial power conservation target value or the value of the initial power conservation target value is not limited.

[0084] Step 201 may specifically include: the vehicle controller determines whether the initial power conservation value is greater than the power conservation target threshold; if it is determined that the initial power conservation value is greater than the power conservation target threshold, the initial power conservation value is used as the power conservation target value; if it is determined that the initial power conservation value is less than or equal to the power conservation target threshold, it is determined whether the altitude pressure value is less than the pressure threshold; if it is determined that the altitude pressure value is less than the pressure threshold, the initial power conservation value is plateau corrected to generate a first power conservation value; it is determined whether the ambient temperature is less than the temperature threshold; if it is determined that the ambient temperature is less than the temperature threshold, the first power conservation value is corrected. A low-temperature correction is performed to generate a second power conservation value and use the second power conservation value as the target power conservation value; if it is determined that the ambient temperature is greater than or equal to the temperature threshold, the first power conservation value is used as the target power conservation value; if it is determined that the altitude pressure value is greater than or equal to the pressure threshold, it is determined whether the ambient temperature is less than the temperature threshold; if it is determined that the ambient temperature is less than the temperature threshold, a low-temperature correction is performed on the initial power conservation value to generate a third power conservation value and use the third power conservation value as the target power conservation value; if it is determined that the ambient temperature is greater than or equal to the temperature threshold, the initial power conservation value is used as the target power conservation value.

[0085] For example, as the altitude pressure gradually decreases, the initial power conservation value increases linearly, and the corrected initial power conservation value can be corrected to 50% at most. When the corrected initial power conservation value exceeds 50%, the initial power conservation value will not be corrected for plateau. As the ambient temperature gradually decreases, the first power conservation value or the initial power conservation value increases linearly, and the corrected first power conservation value or the initial power conservation value can be corrected to 50% at most. When the battery SOC exceeds 50%, the first power conservation value or the initial power conservation value will not be corrected for low temperature. The power conservation target threshold is 50%, such as Figure 3 As shown, the air pressure threshold is 80 kPa and the temperature threshold is 0°C. Therefore, taking into account the extreme driving conditions such as plateau environment and low temperature environment, the initial power conservation value is corrected for plateau and / or low temperature.

[0086] Step 202: The vehicle controller determines whether the gear position is the first gear position or the second gear position. If the gear position is determined to be the first gear position, step 203 is executed; if the gear position is determined to be the second gear position, step 204 is executed.

[0087] In the embodiment of the present invention, the first gear position includes a non-forward gear position, and the non-forward gear position includes a parking gear, a reverse gear, or a neutral gear, etc. Figure 3 As shown in FIG. 1 , the P gear indicates the parking gear, the R gear indicates the reverse gear, and the N gear indicates the neutral gear. The second gear position includes the forward gear position, and the forward gear position includes the low-speed forward gear position or the drive gear position, etc. Figure 3 As shown, D gear represents the forward gear.

[0088] Step 203: The vehicle controller determines that the driving mode is the battery driving mode or the first series mode according to the first acquired parameter and the power conservation target value, and controls the vehicle to travel in the determined battery driving mode or the first series mode.

[0089] In the embodiment of the present invention, the first acquisition parameter includes an SOC value. Step 203 may specifically include: the vehicle controller determines whether the SOC value is less than the power conservation target value; if it is determined that the SOC value is less than the power conservation target value, the driving mode is determined to be the first series mode, and the vehicle is controlled to travel in the first series mode; if it is determined that the SOC value is greater than or equal to the power conservation target value, the driving mode is determined to be the battery driving mode, and the vehicle is controlled to travel in the battery driving mode.

[0090] When the vehicle controller determines that the driving mode is the battery driving mode, the vehicle controller controls the power battery and the driving motor so that the power battery provides electrical energy to the driving motor, and the driving motor drives the vehicle. At the same time, the driving mode can also be switched to the first mode.

[0091] The second vehicle driving mode mentioned above includes an engine series mode and idle power generation or an engine series mode and optimal efficiency point power generation. The first series mode includes an engine series mode and idle power generation. When the vehicle controller determines that the driving mode is the first series mode, the vehicle controller controls the engine to start and controls the engine, power battery and drive motor based on the first series mode, so that the engine charges the power battery at idle speed, the power battery provides electrical energy to the drive motor, and the drive motor drives the vehicle. For example, the VCU controls the GCU and EMS to start the engine in coordination. After the engine is started, idle power generation is performed in accordance with the series mode.

[0092] When the vehicle is in the first gear, it indicates that the vehicle is parked or driving at a low speed. In order to reduce excessive transmission of engine noise to the cab and improve the noise, vibration and harshness (NVH) of the passenger compartment, the engine is controlled to generate electricity at idle speed, which not only meets the battery power conservation requirement, but also improves the NVH requirement under the current working conditions. At the same time, the SOC power conservation target value is designed so that the vehicle controller can automatically adjust the driving mode to the first mode or the second mode, and control the vehicle to drive in pure electric mode or start the engine to drive. When the power conservation target value is set to the minimum, it can ensure that the vehicle can drive in pure electric mode as much as possible, meet the needs of using more electricity and less oil, and reduce the vehicle's fuel consumption. Therefore, based on the gear position, taking into account factors such as power generation efficiency, fuel consumption and NVH, the SOC power conservation target value is corrected for plateaus and low temperatures, and the SOC value is compared with the corrected power conservation target value. This can avoid the problem of insufficient power of the vehicle under low temperature conditions, and thus maintain the battery power at a high SOC in advance; when the battery power decays as the temperature decreases, the high battery power can ensure that the battery can still meet the vehicle's power requirements after low-temperature decay, thereby improving the battery's power conservation ability under low temperatures; it can avoid the problem of insufficient power of the vehicle under high altitude conditions. The power generation efficiency of the engine decreases due to the high altitude. Maintaining the battery power at a high SOC in advance can solve the problem of insufficient power due to low battery power under sudden acceleration; by starting the engine in advance to generate electricity and increase the power conservation SOC value, it can meet complex driving conditions, slow down the battery life decay, and reduce battery maintenance costs.

[0093] Step 204: The vehicle controller determines that the driving mode is the battery driving mode, the second series mode or the parallel mode according to the second acquired parameter and the power conservation target value, and controls the vehicle to travel in the determined battery driving mode, the second series mode or the parallel mode.

[0094] In the embodiment of the present invention, the second acquired parameter includes the power conservation mode and the first power conservation parameter; the second acquired parameter also includes the second power conservation parameter; the second acquired parameter also includes the third power conservation parameter. Figure 5 Another flow chart for determining a driving mode provided by an embodiment of the present invention is as follows: Figure 5 As shown, step 204 may specifically include:

[0095] Step 2041: The vehicle controller determines whether the first power conservation parameter and the power conservation target value meet the first condition based on the power conservation mode; if so, execute step 2043; if not, execute step 2042.

[0096] In the embodiment of the present invention, the first power conservation parameter includes at least one of a power conservation mode, an SOC value, a vehicle speed value, and a pedal opening; the vehicle controller obtains at least one of a third power threshold, a second vehicle speed threshold, a power compensation value, and a second opening threshold based on the power conservation mode, and the first condition includes at least one of an SOC value less than the third power threshold, a vehicle speed value greater than the second vehicle speed threshold, an SOC value less than a fourth power threshold generated by a power conservation target value and a power compensation value, and a pedal opening greater than the second opening threshold; determining whether the first power conservation parameter and the power conservation target value meet the first condition may specifically include: the vehicle controller determines whether the SOC value is less than the third power threshold; if it is determined that the SOC value is less than the third power threshold, step 2043 is executed; if it is determined that the SOC value is less than the third power threshold, step 2044 is executed; If the SOC value is greater than or equal to the third power threshold, determine whether the vehicle speed value is greater than the second vehicle speed threshold; if it is determined that the vehicle speed value is greater than the second vehicle speed threshold, execute step 2043; if it is determined that the vehicle speed value is less than or equal to the second vehicle speed threshold, generate a fourth power threshold according to the power conservation target value and the power compensation value; determine whether the SOC value is less than the fourth power threshold; if it is determined that the SOC value is less than the fourth power threshold, execute step 2043; if it is determined that the SOC value is greater than or equal to the fourth power threshold, determine whether the pedal opening is greater than the second opening threshold; if it is determined that the pedal opening is greater than the second opening threshold, execute step 2043; if it is determined that the pedal opening is less than or equal to the second opening threshold, execute step 2042. Thereby, the SOC value is compared with the third power threshold or the SOC value is compared with the third power threshold and the fourth power threshold, thereby avoiding the problem that the power threshold is set too high, which will cause the engine to start too early, reduce the user's pure electric driving experience, increase the fuel usage cost during the life cycle of the vehicle and increase the fuel consumption of the vehicle; and avoiding the problem that the power threshold is set too low, which will cause the battery power to be too low, insufficient discharge energy of the low-power battery, insufficient power of the whole vehicle, and frequent over-discharge of the battery will reduce the battery service life and increase the battery maintenance cost.

[0097] The power conservation mode includes intelligent power conservation mode or forced power conservation mode, such as Figure 3 As shown, the vehicle controller can obtain the power conservation mode set by the user sent by the IVI or obtain the default power conservation mode. For example, the default power conservation mode is the intelligent power conservation mode. In different power conservation modes, the third power threshold, the second vehicle speed threshold, the power compensation value, and the second opening threshold can have different values ​​or be the same; the fourth power threshold can be the sum of the power conservation target value and the power compensation value, but the calculation of the fourth power threshold is not limited in the embodiment of the present invention. Figure 3As shown, when the power conservation mode is the intelligent power conservation mode, the third power threshold is 20%; the second vehicle speed threshold is 40km / h; the power compensation value is 3%; the second opening threshold is 95%; and the fourth power threshold is the sum of the power conservation target value and the power compensation value. When the power conservation mode is the forced power conservation mode, the third power threshold is 50%; the second vehicle speed threshold is 20km / h; the power compensation value is 5%; the second opening threshold is 80%; and the fourth power threshold is the sum of the power conservation target value and the power compensation value.

[0098] Step 2042: The vehicle controller determines that the driving mode is the battery driving mode, and controls the vehicle to travel in the battery driving mode.

[0099] In the embodiment of the present invention, the vehicle controller determines that the driving mode is the battery driving mode, and switches the driving mode to the first mode. At this time, the second acquired parameter includes the power conservation mode and the first power conservation parameter.

[0100] Step 2043: The vehicle controller determines that the driving mode is the second series mode, and controls the vehicle to travel in the second series mode.

[0101] In an embodiment of the present invention, the above-mentioned second vehicle driving mode includes an engine series mode and idle power generation or an engine series mode and optimal efficiency point power generation. The second series mode includes an engine series mode and optimal efficiency point power generation. When the vehicle controller determines that the driving mode is the second series mode, the vehicle controller controls the engine to start; based on the second series mode, the engine, power battery and drive motor are controlled so that the engine charges the power battery at the optimal efficiency point, the power battery provides electrical energy to the drive motor, and the drive motor drives the vehicle to travel. For example, the VCU controls the GCU and EMS to start the engine in coordination and enables the engine to generate electricity at the optimal efficiency point. Therefore, when there is a high-power driving demand, the vehicle can be controlled to travel in the second series mode. At this time, the engine starts in advance to generate electricity, slowing down the battery power consumption, and avoiding the problem of insufficient power of the whole vehicle due to excessive battery power consumption.

[0102] In the intelligent power conservation mode or the forced power conservation mode, after the engine is started, it will generate electricity in series mode. Different throttle opening ranges correspond to different power generation gears of the engine. The engine power generation point changes with the change of the accelerator pedal opening. The engine is started in advance and the engine's best power generation efficiency point is selected for power generation to ensure that the battery is in a state of shallow charge and shallow discharge for a long time, delay the battery life attenuation, and reduce the battery maintenance cost. In the forced power conservation mode, the SOC value is maintained first to avoid the battery power consumption too fast or lower than the SOC power conservation target value set by the user, so that the SOC value is as close to the target power conservation value as possible. In the intelligent power conservation mode, fuel economy is given priority while taking into account the power conservation needs. Compared with the intelligent power conservation mode, the forced power conservation mode focuses more on battery power conservation, and makes certain concessions to fuel economy and vehicle NVH, so as to avoid the battery power consumption too fast or lower than the SOC power conservation target value set by the user.

[0103] If the computer executes step 2043 after executing step 2046, and the engine has been started, step 2043 includes: the vehicle controller switches the parallel mode to the second series mode; based on the second series mode, the engine, the power battery and the drive motor are controlled so that the engine charges the power battery at the optimal efficiency point, the power battery provides electrical energy to the drive motor, and the drive motor drives the vehicle.

[0104] Step 2044: The vehicle controller determines whether the second power conservation parameter meets the second condition based on the power conservation mode and the driving mode being the second series mode; if not, execute step 2043; if yes, execute step 2045.

[0105] In the embodiment of the present invention, at this time, the second acquired parameter includes the power conservation mode, the first power conservation parameter and the second power conservation parameter. The second power conservation parameter includes the vehicle speed value, the vehicle controller acquires the third vehicle speed threshold value based on the power conservation mode, and the second condition includes that the vehicle speed value is greater than the third vehicle speed threshold value; judging whether the second power conservation parameter meets the second condition may specifically include: the vehicle controller judges whether the vehicle speed value is greater than the third vehicle speed threshold value based on the driving mode being the second series mode; if it is judged that the vehicle speed value is less than or equal to the third vehicle speed threshold value, then execute step 2043; if it is judged that the vehicle speed value is greater than the third vehicle speed threshold value, then execute step 2045.

[0106] In different power conservation modes, the third vehicle speed threshold can be different or the same. Figure 3 As shown, when the power conservation mode is the intelligent power conservation mode, the third vehicle speed threshold is 80 km / h; when the power conservation mode is the forced power conservation mode, the third vehicle speed threshold is 80 km / h.

[0107] In the intelligent power conservation mode or the forced power conservation mode, after the engine enters the series mode to generate electricity, when the vehicle speed is within a certain range, the engine directly drives the vehicle, and its engine fuel economy is the best and fuel consumption is the lowest. Therefore, at this time, the engine is controlled to switch from the series mode to the parallel mode, and the engine's optimal driving and power generation fuel consumption point is met, and the current vehicle NVH is improved.

[0108] Step 2045: The vehicle controller determines that the driving mode is the parallel mode, and controls the vehicle to travel in the parallel mode.

[0109] In the embodiment of the present invention, the parallel mode includes the third vehicle driving mode mentioned above, such as Figure 3 As shown, the third vehicle driving mode includes the engine parallel mode and the best efficiency point driving and power generation. When the vehicle controller determines that the driving mode is the parallel mode, the engine has been started, and the vehicle controller switches the driving mode from the second series mode to the parallel mode, and controls the engine and the power battery based on the parallel mode, so that the engine charges the power battery at the best efficiency point, provides kinetic energy to the vehicle at the best efficiency point and drives the vehicle.

[0110] Step 2046: The vehicle controller determines whether the third power conservation parameter meets the third condition based on the power conservation mode and the driving mode being in parallel mode. If so, execute step 2043; if not, execute step 2045.

[0111] In the embodiment of the present invention, at this time, the second acquired parameter includes the power conservation mode, the first power conservation parameter, the second power conservation parameter and the third power conservation parameter. The third power conservation parameter includes at least one of a pedal opening, a pedal change rate, and a vehicle speed value; the vehicle controller obtains at least one of a third opening threshold, a pedal change rate threshold, and a fourth vehicle speed threshold based on the power conservation mode, and the third condition includes at least one of a pedal opening greater than the third opening threshold, a pedal change rate greater than the pedal change rate threshold, and a vehicle speed greater than the fourth vehicle speed threshold; judging whether the third power conservation parameter meets the third condition may specifically include: the vehicle controller judges whether the pedal opening is greater than the third opening threshold based on the driving mode being the parallel mode; if it is judged that the pedal opening is greater than the third opening threshold, executing step 2043; if it is judged that the pedal opening is less than or equal to the third opening threshold, judging whether the pedal change rate is greater than the pedal change rate threshold; if it is judged that the pedal change rate is greater than the pedal change rate threshold, executing step 2043; if it is judged that the pedal change rate is less than or equal to the pedal change rate threshold, judging whether the vehicle speed value is greater than the fourth vehicle speed threshold; if it is judged that the vehicle speed value is greater than the fourth vehicle speed threshold, executing step 2043; if it is judged that the vehicle speed value is less than or equal to the fourth vehicle speed threshold, determining that the driving mode is the parallel mode.

[0112] In different power conservation modes, the values ​​of the third opening threshold, the pedal change rate threshold, and the fourth vehicle speed threshold can be different or the same. Figure 3 As shown, when the power conservation mode is the intelligent power conservation mode, the third opening threshold is 95%; the pedal change rate threshold is 50% / s; and the fourth vehicle speed threshold is 125km / h. When the power conservation mode is the forced power conservation mode, the third opening threshold is 50%; the pedal change rate threshold is 50% / s; and the fourth vehicle speed threshold is 110km / h.

[0113] However, due to the inherent characteristics of the engine itself, the economy of the engine parallel drive will gradually deteriorate after the vehicle speed exceeds a certain range, so it is necessary to exit the parallel mode and switch back to the series mode to ensure the vehicle's fuel economy and power conservation. This enables the engine series mode and parallel mode to switch back and forth, ensuring the vehicle's fuel economy and power conservation. The vehicle speed to exit the parallel mode in the forced power conservation mode is earlier than the intelligent power conservation exit speed, in order to better ensure the battery power conservation needs.

[0114] An embodiment of the present invention provides a control method, which determines whether the driving mode is the first mode or the second mode based on the acquired vehicle mode and the first parameter acquired; if the driving mode is determined to be the first mode, the driving mode is determined to be the battery driving mode and the vehicle is controlled to drive in the battery driving mode; if the driving mode is determined to be the second mode, the driving mode is determined to be the battery driving mode or the engine driving mode according to the acquired second parameter and the vehicle is controlled to drive in the determined battery driving mode or the engine driving mode, so that the driving mode of the vehicle can be automatically adjusted according to the vehicle condition, and whether it is necessary to start the engine in advance to drive in the engine driving mode can be determined based on the driving mode of the vehicle and multiple parameters, which can ensure the power demand of the vehicle, reduce the fuel consumption of the vehicle and meet the complex driving environment, maintain the battery power, delay the attenuation of the battery life, and reduce the maintenance cost of the battery.

[0115] Figure 6 A schematic diagram of a control device provided by an embodiment of the present invention is shown in FIG. Figure 6 As shown, the device includes a first determining module 11, a second determining module 12 and a third determining module 13. The first determining module 11 is connected to the second determining module 12 and the third determining module 13.

[0116] The first determination module 11 is used to determine whether the driving mode is the first mode or the second mode based on the acquired vehicle mode and the acquired first parameter; the second determination module 12 is used to determine that the driving mode is the battery driving mode and control the vehicle to drive in the battery driving mode if the first determination module determines that the driving mode is the first mode; the third determination module 13 is used to determine that the driving mode is the battery driving mode or the engine driving mode and control the vehicle to drive in the determined battery driving mode or the engine driving mode according to the acquired second parameter if the first determination module determines that the driving mode is the second mode.

[0117] In a possible implementation, the first parameter includes a first driving parameter or a second driving parameter, and the vehicle mode includes a first mode or a second mode; the first determination module 11 is specifically used to determine that the driving mode is the first mode or the second mode based on the first driving parameter if the vehicle mode is the first mode; or, based on the vehicle mode being the second mode, determine that the driving mode is the first mode or the second mode based on the second driving parameter.

[0118] In one possible implementation, the second parameter includes an external environment value, an initial power conservation value and a gear position, the second parameter also includes a first acquisition parameter or a second acquisition parameter, the gear position includes a first gear position or a second gear position, and the engine drive mode includes a first series mode, a second series mode or a parallel mode; the third determination module 13 is specifically used to generate a power conservation target value according to the external environment value and the initial power conservation value; determine the gear position to be the first gear position or the second gear position; if the gear position is determined to be the first gear position, then determine the drive mode to be a battery drive mode or a first series mode according to the first acquisition parameter and the power conservation target value, and control the vehicle to travel in the determined battery drive mode or the first series mode; if the gear position is determined to be the second gear position, then determine the drive mode to be a battery drive mode, a second series mode or a parallel mode according to the second acquisition parameter and the power conservation target value, and control the vehicle to travel in the determined battery drive mode, the second series mode or the parallel mode.

[0119] In a possible implementation, the second acquired parameter includes the power conservation mode and the first power conservation parameter; the third determination module 13 is specifically used to determine whether the first power conservation parameter and the power conservation target value meet the first condition based on the power conservation mode; if it is determined that the first power conservation parameter and the power conservation target value do not meet the first condition, the driving mode is determined to be the battery driving mode, and the vehicle is controlled to travel in the battery driving mode; if it is determined that the first power conservation parameter and the power conservation target value meet the first condition, the driving mode is determined to be the second series mode, and the vehicle is controlled to travel in the second series mode.

[0120] In a possible implementation, the second acquisition parameter also includes a second power conservation parameter; the third determination module 13 is specifically used to determine whether the second power conservation parameter meets the second condition based on the power conservation mode and the driving mode being the second series mode; if it is determined that the second power conservation parameter does not meet the second condition, the driving mode is determined to be the second series mode, and the step of controlling the vehicle to travel in the second series mode is executed; if it is determined that the second power conservation parameter meets the second condition, the driving mode is determined to be the parallel mode, and the vehicle is controlled to travel in the parallel mode.

[0121] In a possible implementation, the second acquisition parameter also includes a third power conservation parameter; the third determination module 13 is specifically used to determine whether the third power conservation parameter meets the third condition based on the power conservation mode and the driving mode being in parallel mode; if it is determined that the third power conservation parameter meets the third condition, the driving mode is determined to be the second series mode, and the step of controlling the vehicle to travel in the second series mode is executed; if it is determined that the third power conservation parameter does not meet the third condition, the driving mode is determined to be the parallel mode, and the step of controlling the vehicle to travel in the parallel mode is executed.

[0122] An embodiment of the present invention provides a control device, which determines that the driving mode is the first mode or the second mode based on the acquired vehicle mode and the acquired first parameter; if the driving mode is determined to be the first mode, the driving mode is determined to be the battery driving mode and the vehicle is controlled to drive in the battery driving mode; if the driving mode is determined to be the second mode, the driving mode is determined to be the battery driving mode or the engine driving mode according to the acquired second parameter and the vehicle is controlled to drive in the determined battery driving mode or the engine driving mode, so that the driving mode of the vehicle can be automatically adjusted according to the vehicle condition, and whether it is necessary to start the engine in advance to drive in the engine driving mode can be determined based on the driving mode of the vehicle and multiple parameters, which can ensure the power demand of the vehicle, reduce the fuel consumption of the vehicle and meet the complex driving environment, maintain the battery power, delay the attenuation of the battery life, and reduce the maintenance cost of the battery.

[0123] Corresponding to the above embodiment, the present invention also provides a vehicle controller. Figure 7 The schematic diagram of the structure of a vehicle controller provided in an embodiment of the present invention is as follows. The vehicle controller 8 may include: a processor 801, a memory 802, and a communication unit 803. These components communicate via one or more buses. It can be understood by those skilled in the art that the structure of the vehicle controller shown in the figure does not constitute a limitation on the embodiment of the present invention. It may be a bus structure or a star structure, and may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0124] The communication unit 803 is used to establish a communication channel so that the vehicle controller can communicate with other devices, receive data sent by other devices or send data to other devices.

[0125] The processor 801 is the control center of the vehicle controller. It uses various interfaces and lines to connect various parts of the entire vehicle controller. It runs or executes software programs, instructions, and / or modules stored in the memory 802, and calls data stored in the memory to perform various functions and / or process data of the vehicle controller. The processor can be composed of an integrated circuit (IC), for example, it can be composed of a single packaged IC, or it can be composed of multiple packaged ICs with the same or different functions. For example, the processor 801 can include only a central processing unit (CPU). In an embodiment of the present invention, the CPU can be a single computing core or multiple computing cores.

[0126] The memory 802 is used to store the execution instructions of the processor 801. The memory 802 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0127] When the execution instruction in the memory 802 is executed by the processor 801, the vehicle controller 8 can execute Figure 1 Some or all of the steps in the illustrated embodiments.

[0128] In a specific implementation, the present invention further provides a computer-readable storage medium, wherein the computer storage medium may store a program, and when the program is executed, the program may include some or all of the steps in each embodiment of the control method provided by the present invention. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0129] In a specific implementation, the present invention further provides a computer program product, wherein the computer program product includes executable instructions, and when the executable instructions are executed on a computer, the computer executes part or all of the steps in each embodiment of the control method provided by the present invention.

[0130] Those skilled in the art can clearly understand that the technology in the embodiments of the present invention can be implemented by means of software plus a necessary general hardware platform. Based on this understanding, the technical solution in the embodiments of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which can be stored in a storage medium such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for enabling a vehicle controller (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention or some parts of the embodiments.

[0131] Figure 8 A schematic diagram of a vehicle structure provided by an embodiment of the present invention is shown in FIG. Figure 8 As shown, the vehicle 1 includes a battery module 6, an engine module 7 and a vehicle controller 8, the vehicle controller 8 is connected to the battery module 6 and the engine module 7, and the battery module 6 and the engine module 7 are connected.

[0132] The vehicle controller 8 is used to determine whether the driving mode is the first mode or the second mode based on the acquired vehicle mode and the acquired first parameter; if the driving mode is determined to be the first mode, the driving mode is determined to be the battery driving mode and the battery module 6 is controlled to make the vehicle drive in the battery driving mode; if the driving mode is determined to be the second mode, the driving mode is determined to be the battery driving mode and the battery module 6 is controlled to make the vehicle drive in the battery driving mode according to the acquired second parameter, or the driving mode is determined to be the engine driving mode and the battery module 6 and the engine module 7 are controlled to make the vehicle drive in the engine driving mode.

[0133] In the embodiment of the present invention, the battery module 6 may include an MCU, a BMS and a battery; the engine module 7 may include an EMS, a GCU and an engine.

[0134] In one possible implementation, the first parameter includes a first driving parameter or a second driving parameter, and the vehicle mode includes a first mode or a second mode; the vehicle controller 8 is specifically used to determine that the driving mode is the first mode or the second mode based on the vehicle mode being the first mode and according to the first driving parameter; or, based on the vehicle mode being the second mode, determine that the driving mode is the first mode or the second mode based on the second driving parameter.

[0135] In a possible implementation, the second parameter includes an external environment value, an initial power conservation value and a gear position, the second parameter also includes a first acquisition parameter or a second acquisition parameter, the gear position includes a first gear position or a second gear position, and the engine drive mode includes a first series mode, a second series mode or a parallel mode; the vehicle controller 8 is specifically used to generate a power conservation target value according to the external environment value and the initial power conservation value; determine the gear position to be the first gear position or the second gear position; if the gear position is determined to be the first gear position, then according to the first acquisition parameter and the power conservation target value, determine that the drive mode is a battery drive mode and control the battery module 6 to make the vehicle travel in the battery drive mode, or determine that the drive mode is the first series mode and control the battery module 6 and the engine module 7 to make the vehicle travel in the first series mode; if the gear position is determined to be the second gear position, then according to the second acquisition parameter and the power conservation target value, determine that the drive mode is a battery drive mode and control the battery module 6 to make the vehicle travel in the battery drive mode, or determine that the drive mode is the second series mode or the parallel mode and control the battery module 6 and the engine module 7 to make the vehicle travel in the determined second series mode or the parallel mode.

[0136] In one possible implementation, the second acquired parameter includes a power conservation mode and a first power conservation parameter; the vehicle controller 8 is specifically used to determine whether the first power conservation parameter and the power conservation target value meet the first condition based on the power conservation mode; if it is determined that the first power conservation parameter and the power conservation target value do not meet the first condition, the driving mode is determined to be a battery driving mode, and the battery module 6 is controlled to make the vehicle travel in the battery driving mode; if it is determined that the first power conservation parameter and the power conservation target value meet the first condition, the driving mode is determined to be the second series mode, and the battery module 6 and the engine module 7 are controlled to make the vehicle travel in the second series mode.

[0137] In a possible implementation, the second acquisition parameter also includes a second power conservation parameter; the vehicle controller 8 is specifically used to determine whether the second power conservation parameter meets the second condition based on the power conservation mode and the driving mode being the second series mode; if it is determined that the second power conservation parameter does not meet the second condition, the driving mode is determined to be the second series mode, and the step of controlling the battery module 6 and the engine module 7 to make the vehicle travel in the second series mode is executed; if it is determined that the second power conservation parameter meets the second condition, the driving mode is determined to be the parallel mode, and the battery module 6 and the engine module 7 are controlled to make the vehicle travel in the parallel mode.

[0138] In a possible implementation, the second acquired parameter also includes a third power conservation parameter; the vehicle controller 8 is specifically used to determine whether the third power conservation parameter meets the third condition based on the power conservation mode and the driving mode being in parallel mode; if it is determined that the third power conservation parameter meets the third condition, the driving mode is determined to be the second series mode, and the step of controlling the battery module 6 and the engine module 7 to make the vehicle travel in the second series mode is executed; if it is determined that the third power conservation parameter does not meet the third condition, the driving mode is determined to be the parallel mode, and the step of controlling the battery module 6 and the engine module 7 to make the vehicle travel in the parallel mode is executed.

[0139] An embodiment of the present invention provides a vehicle, which includes a battery module, an engine module and a vehicle controller. The vehicle controller is used to determine whether the driving mode is a first mode or a second mode based on an acquired vehicle mode and a first parameter; if the driving mode is determined to be the first mode, the driving mode is determined to be a battery driving mode and the battery module is controlled to make the vehicle drive in the battery driving mode; if the driving mode is determined to be the second mode, the driving mode is determined to be a battery driving mode and the battery module is controlled to make the vehicle drive in the battery driving mode according to the acquired second parameter, or the driving mode is determined to be an engine driving mode and the battery module and the engine module are controlled to make the vehicle drive in the engine driving mode, so that the vehicle controller can automatically adjust the driving mode of the vehicle according to the vehicle condition, and determine whether it is necessary to start the engine in advance to drive in the engine driving mode based on the vehicle's driving mode and multiple parameters, which can ensure the power demand of the vehicle, reduce the fuel consumption of the vehicle and meet the complex driving environment, delay the attenuation of the battery life, and reduce the maintenance cost of the battery.

[0140] In this specification, the same or similar parts between the various embodiments can be referred to each other. In particular, for the device embodiment and the terminal embodiment, since they are basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the description in the method embodiment.

Claims

1. A control method, characterized in that: include: Based on the acquired vehicle mode, determining the driving mode as the first mode or the second mode according to the acquired first parameter; If it is determined that the driving mode is the first mode, then determining that the driving mode is the battery driving mode and controlling the vehicle to travel in the battery driving mode; If it is determined that the driving mode is the second mode, the driving mode is determined to be the battery driving mode or the engine driving mode according to the acquired second parameter and the vehicle is controlled to travel in the determined battery driving mode or the engine driving mode.

2. The method according to claim 1, wherein the first parameter comprises a first driving parameter or a second driving parameter, and the vehicle mode comprises a first mode or a second mode; and the step of determining the driving mode as the first mode or the second mode based on the acquired vehicle mode and the acquired driving parameter comprises: Based on the vehicle mode being the first mode, determining the driving mode to be the first mode or the second mode according to the first driving parameter; or, Based on the vehicle mode being the second mode, the driving mode is determined to be the first mode or the second mode according to the second driving parameter.

3. The method according to claim 1, characterized in that The second parameter includes an external environment value, an initial power conservation value and a gear position, the second parameter also includes a first acquisition parameter or a second acquisition parameter, the gear position includes a first gear position or a second gear position, and the engine driving mode includes a first series mode, a second series mode or a parallel mode; the determining that the driving mode is a battery driving mode or an engine driving mode according to the acquired third parameter and controlling the vehicle to travel in the determined battery driving mode or the engine driving mode includes: generating a power conservation target value according to the external environment value and the initial power conservation value; determining that the gear position is the first gear position or the second gear position; If it is determined that the gear position is the first gear position, determining that the driving mode is the battery driving mode or the first series mode according to the first acquired parameter and the power conservation target value, and controlling the vehicle to travel in the determined battery driving mode or the first series mode; If it is determined that the gear is the second gear, the driving mode is determined to be the battery driving mode, the second series mode or the parallel mode according to the second acquisition parameter and the power conservation target value, and the vehicle is controlled to travel in the determined battery driving mode, the second series mode or the parallel mode.

4. The method according to claim 3, characterized in that The second acquired parameter includes a power conservation mode and a first power conservation parameter; determining the driving mode as a battery driving mode, a second series mode or a parallel mode according to the second acquired parameter and the power conservation target value and controlling the vehicle to travel in the determined battery driving mode, the second series mode or the parallel mode, includes: Based on the power conservation mode, determining whether the first power conservation parameter and the power conservation target value meet a first condition; If it is determined that the first power conservation parameter and the power conservation target value do not meet the first condition, determining that the driving mode is the battery driving mode, and controlling the vehicle to travel in the battery driving mode; If it is determined that the first power conservation parameter and the power conservation target value meet the first condition, the driving mode is determined to be the second series mode, and the vehicle is controlled to travel in the second series mode.

5. The method according to claim 4, characterized in that The second acquisition parameter also includes a second power conservation parameter; after the vehicle is controlled to travel in the second series mode, the method further includes: Based on the power conservation mode and the driving mode being the second series mode, determining whether the second power conservation parameter meets a second condition; If it is determined that the second power conservation parameter does not meet the second condition, determining that the driving mode is the second series mode, and executing the step of controlling the vehicle to travel in the second series mode; If it is determined that the second power conservation parameter meets the second condition, the driving mode is determined to be the parallel mode, and the vehicle is controlled to travel in the parallel mode.

6. The method according to claim 5, characterized in that The second acquisition parameter also includes a third power conservation parameter; after the vehicle is controlled to travel in the parallel mode, the method further includes: Based on the power conservation mode and the driving mode being the parallel mode, determining whether the third power conservation parameter meets a third condition; If it is determined that the third power conservation parameter meets the third condition, determining that the driving mode is the second series mode, and executing the step of controlling the vehicle to travel in the second series mode; If it is determined that the third power conservation parameter does not meet the third condition, the driving mode is determined to be the parallel mode, and the step of controlling the vehicle to travel in the parallel mode is executed.

7. A control device, characterized in that: include: A first determination module, configured to determine, based on the acquired vehicle mode, whether the driving mode is the first mode or the second mode according to the acquired first parameter; a second determination module, configured to determine that the driving mode is a battery driving mode and control the vehicle to travel in the battery driving mode if the first determination module determines that the driving mode is the first mode; The third determination module is used to determine that the driving mode is the battery driving mode or the engine driving mode according to the acquired second parameter if the first determination module determines that the driving mode is the second mode, and control the vehicle to drive in the determined battery driving mode or the engine driving mode.

8. A vehicle controller, characterized in that: It comprises a memory for storing computer program instructions and a processor for executing the program instructions, wherein when the computer program instructions are executed by the processor, the vehicle controller executes the method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the method according to any one of claims 1 to 6.

10. A vehicle, characterized in that: The vehicle includes a vehicle controller, a battery module and an engine module; A vehicle controller, configured to determine, based on the acquired vehicle mode and according to the acquired first parameter, whether the driving mode is the first mode or the second mode; if the driving mode is determined to be the first mode, determine that the driving mode is the battery driving mode and control the battery module to make the vehicle drive in the battery driving mode; If it is determined that the driving mode is the second mode, then based on the acquired second parameter, the driving mode is determined to be the battery driving mode and the battery module is controlled to make the vehicle drive in the battery driving mode, or the driving mode is determined to be the engine driving mode and the battery module and the engine module are controlled to make the vehicle drive in the engine driving mode.

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