Control Method, Device, ECU and Storage Medium of a Vehicle

Abstract

The present application provides a control method, device, ECU and storage medium for a vehicle. The method is applied to the ECU of the vehicle. By obtaining the opening degree of the vehicle's accelerator pedal and determining the target torque corresponding to the target driving mode according to the opening degree of the accelerator pedal and the target driving mode selected by the user, the target driving mode is the driving mode corresponding to the knob at any position selected by the user between the knob of the economy mode and the knob of the sport mode, and the target torque is determined according to the voltage signal value indicated by the knob corresponding to the target driving mode. Then, the vehicle is controlled to operate according to the target torque. In this technical solution, by selecting any mode between the economy mode and the sport mode, the vehicle can operate according to the user's driving habits, meeting the user's driving style preferences.

Description

Technical Field

[0001] The present application relates to the technical field of automobiles, and particularly relates to a control method, device, ECU, and storage medium for a vehicle. Background Art

[0002] With the continuous popularization of automobiles, in order to stand out in the competition, manufacturers need to continuously improve the handling performance of vehicles to meet the needs of users. Therefore, many models of currently sold vehicles are equipped with the function of "driving mode selection".

[0003] In the prior art, on a vehicle, a user can switch driving modes through a hardware switch (such as a knob) or a soft switch (such as a central control touch screen), such as economy (ECO), comfort (COM), sport (SPORT), etc., which better meets the driving style preference needs of different users.

[0004] However, the design of such a simple small number of driving modes only roughly conforms to the driving habits of some users, but cannot ensure that it conforms to everyone's driving habits. Therefore, how to design a driving mode suitable for the driving habits of most people has become a technical problem to be solved urgently. Summary of the Invention

[0005] The embodiments of the present application provide a control method, device, ECU, and storage medium for a vehicle, so as to solve the technical problem of how to design a driving mode suitable for the driving habits of most people.

[0006] In a first aspect, the embodiments of the present application provide a control method for a vehicle, which is applied to the power control unit ECU of the vehicle, and the method includes:

[0007] Obtain the opening degree of the accelerator pedal of the vehicle;

[0008] According to the opening degree of the accelerator pedal and the target driving mode selected by the user, determine the target torque corresponding to the target driving mode, where the target driving mode is the driving mode corresponding to any position of the knob selected by the user between the knob of the economy mode and the knob of the sport mode, and the target torque is determined according to the voltage signal value indicated by the knob corresponding to the target driving mode;

[0009] Control the vehicle to operate according to the target torque.

[0010] In a possible design of the first aspect, the target driving mode is specifically the driving mode corresponding to any position of the knob selected by the user between the knob of the economy mode and the knob of the comfort mode;

[0011] Correspondingly, determining the target torque corresponding to the target driving mode according to the throttle pedal opening and the target driving mode selected by the user includes:

[0012] Obtaining the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the economy mode, and the voltage signal value corresponding to the comfort mode;

[0013] Determining a first interpolation ratio of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the economy mode, and the voltage signal value corresponding to the comfort mode, where the first interpolation ratio is used to indicate the voltage proportion of the target driving mode between the economy mode and the comfort mode;

[0014] Determining the target torque corresponding to the target driving mode according to the first interpolation ratio, the output torque corresponding to the economy mode at the throttle pedal opening, and the output torque corresponding to the comfort mode at the throttle pedal opening.

[0015] In another possible design of the first aspect, the target driving mode is specifically the driving mode corresponding to the knob at any position selected by the user between the sport mode knob and the comfort mode knob;

[0016] Correspondingly, determining the target torque corresponding to the target driving mode according to the throttle pedal opening and the target driving mode selected by the user includes:

[0017] Obtaining the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sport mode, and the voltage signal value corresponding to the comfort mode;

[0018] Determining a second interpolation ratio of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sport mode, and the voltage signal value corresponding to the comfort mode, where the second interpolation ratio is used to indicate the voltage proportion of the target driving mode between the sport mode and the comfort mode;

[0019] Determining the target torque corresponding to the target driving mode according to the second interpolation ratio, the output torque corresponding to the sport mode at the throttle pedal opening, and the output torque corresponding to the comfort mode at the throttle pedal opening.

[0020] In yet another possible design of the first aspect, determining the target torque corresponding to the target driving mode according to the throttle pedal opening and the target driving mode selected by the user includes:

[0021] Obtain the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sports mode, and the voltage signal value corresponding to the economy mode;

[0022] Determine a third interpolation ratio of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sports mode, and the voltage signal value corresponding to the economy mode, where the third interpolation ratio is used to indicate the voltage proportion of the target driving mode between the sports mode and the economy mode;

[0023] Determine the target torque corresponding to the target driving mode according to the third interpolation ratio, the output torque corresponding to the sports mode at the throttle pedal opening, and the output torque corresponding to the economy mode at the throttle pedal opening.

[0024] Optionally, the obtaining of the throttle pedal opening of the vehicle includes:

[0025] Obtain the displacement value of the throttle pedal of the vehicle, where the displacement value is the distance that the throttle pedal drops;

[0026] Determine the throttle pedal opening of the throttle pedal according to the displacement value.

[0027] In a second aspect, an embodiment of the present application provides a control device for a vehicle, which is applied to an engine control unit (ECU) of the vehicle. The device includes:

[0028] An obtaining module, configured to obtain the throttle pedal opening of the vehicle;

[0029] A determining module, configured to determine the target torque corresponding to the target driving mode according to the throttle pedal opening and the target driving mode selected by the user, where the target driving mode is the driving mode corresponding to any position of the knob selected by the user between the knob of the economy mode and the knob of the sports mode, and the target torque is determined according to the voltage signal value indicated by the knob corresponding to the target driving mode;

[0030] A control module, configured to control the vehicle to operate according to the target torque.

[0031] In a possible design of the second aspect, the target driving mode is specifically the driving mode corresponding to any position of the knob selected by the user between the knob of the economy mode and the knob of the comfort mode;

[0032] Correspondingly, the determining module is specifically configured to:

[0033] Obtain the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the economy mode, and the voltage signal value corresponding to the comfort mode;

[0034] Determine a first interpolation ratio of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the economy mode, and the voltage signal value corresponding to the comfort mode, where the first interpolation ratio is used to indicate the voltage proportion of the target driving mode between the economy mode and the comfort mode;

[0035] Determine the target torque corresponding to the target driving mode according to the first interpolation ratio, the output torque corresponding to the economy mode at the throttle pedal opening, and the output torque corresponding to the comfort mode at the throttle pedal opening.

[0036] In another possible design of the second aspect, the target driving mode is specifically the driving mode corresponding to the knob at any position selected by the user between the sport mode knob and the comfort mode knob;

[0037] Correspondingly, the determining module is specifically configured to:

[0038] Obtain the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sport mode, and the voltage signal value corresponding to the comfort mode;

[0039] Determine a second interpolation ratio of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sport mode, and the voltage signal value corresponding to the comfort mode, where the second interpolation ratio is used to indicate the voltage proportion of the target driving mode between the sport mode and the comfort mode;

[0040] Determine the target torque corresponding to the target driving mode according to the second interpolation ratio, the output torque corresponding to the sport mode at the throttle pedal opening, and the output torque corresponding to the comfort mode at the throttle pedal opening.

[0041] In another possible design of the second aspect, the determining module is specifically configured to:

[0042] Obtain the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sport mode, and the voltage signal value corresponding to the economy mode;

[0043] Determine a third interpolation ratio of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sport mode, and the voltage signal value corresponding to the economy mode, where the third interpolation ratio is used to indicate the voltage proportion of the target driving mode between the sport mode and the economy mode;

[0044] Determine the target torque corresponding to the target driving mode according to the third interpolation ratio, the output torque corresponding to the motion mode at the throttle pedal opening, and the output torque corresponding to the economy mode at the throttle pedal opening.

[0045] Optionally, the obtaining module obtains the throttle pedal opening of the vehicle, specifically for:

[0046] Obtain the displacement value of the throttle pedal of the vehicle, where the displacement value is the distance that the throttle pedal drops;

[0047] Determine the throttle pedal opening of the throttle pedal according to the displacement value.

[0048] In a third aspect, an embodiment of the present application provides an ECU, including: a processor and a memory;

[0049] The memory stores computer execution instructions;

[0050] The processor executes the computer execution instructions, so that the ECU executes the control method of the vehicle as described in the first aspect and various possible designs above.

[0051] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, in which computer execution instructions are stored, and when the computer execution instructions are executed by a processor, they are used to implement the control method of the vehicle as described in the first aspect and various possible designs above.

[0052] In a fifth aspect, an embodiment of the present application provides a computer program product, including a computer program, and when the computer program is executed by a processor, it is used to implement the control method of the vehicle as described in the first aspect and various possible designs above.

[0053] The control method, device, ECU, and storage medium of the vehicle provided by the embodiments of the present application are applied to the ECU of the vehicle. By obtaining the throttle pedal opening of the vehicle and determining the target torque corresponding to the target driving mode according to the throttle pedal opening and the target driving mode selected by the user, the target driving mode is the driving mode corresponding to the knob at any position selected by the user between the knob of the economy mode and the knob of the motion mode, and the target torque is determined according to the voltage signal value indicated by the knob corresponding to the target driving mode, and then control the vehicle to run according to the target torque. In this technical solution, by selecting any mode between the economy mode and the motion mode, the vehicle can run according to the user's driving habits, meeting the user's driving style preferences. Description of the Drawings

[0054] The accompanying drawings herein are incorporated into and constitute a part of this specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure.

[0055] Figure 1 Schematic diagram of the driving mode function selection of the prior art provided for the embodiments of this application;

[0056] Figure 2 Schematic diagram of the application scenario of the vehicle control method provided for the embodiments of this application;

[0057] Figure 3 Schematic diagram of the driving mode function selection provided for the embodiments of this application;

[0058] Figure 4 Schematic flowchart of the first embodiment of the vehicle control method provided for the embodiments of this application;

[0059] Figure 5 Schematic diagram of the logic of the driving mode switching provided for the embodiments of this application;

[0060] Figure 6 Schematic flowchart of the second embodiment of the vehicle control method provided for the embodiments of this application;

[0061] Figure 7 Schematic flowchart of the third embodiment of the vehicle control method provided for the embodiments of this application;

[0062] Figure 8 Schematic flowchart of the fourth embodiment of the vehicle control method provided for the embodiments of this application;

[0063] Figure 9 Schematic diagram of the structure of the vehicle control device provided for the embodiments of this application;

[0064] Figure 10 Schematic diagram of the structure of the ECU provided for the embodiments of this application.

[0065] Through the above accompanying drawings, specific embodiments of the present disclosure have been shown, and there will be more detailed descriptions hereinafter. These drawings and text descriptions are not intended to limit the scope of the concept of the present disclosure in any way, but to illustrate the concept of the present disclosure to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0066] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0067] Before introducing the embodiments of the present application, the background technology of the present application is first explained:

[0068] Many passenger cars on the market are equipped with a "driving mode selection" function. Users can switch driving modes, such as economy (ECO), comfort (COM), and sports (SPORT), through hardware switches (such as knobs) or soft switches (such as central control touch screens), which better meet the driving style preferences of different users.

[0069] Figure 1 A schematic diagram of driving mode function selection in the prior art provided in an embodiment of the present application is shown in FIG. Figure 1 As shown, the driving mode knob is set with three modes: ECO, COM, and SPORT. At this time, the vehicle points to the ECO mode.

[0070] Generally speaking, there will be obvious differences in driving styles among ECO, COM and SPORT modes. The settings of the accelerator pedal map (Pedal Map) in different driving modes will take into account the usage needs of most people, but it cannot ensure that it meets everyone's driving habits or preferences.

[0071] Specifically, different driving modes correspond to different user demands. For example, the ECO mode generally emphasizes fuel economy. The accelerator pedal pulse in this mode will be weaker and the shift point speed will be lower. The accelerator pedal pulse in SPORT mode will be significantly stronger and the shift point speed will also be higher to ensure fast power response and ample torque output. The COM mode is quite satisfactory, taking into account both fuel economy and power, highlighting the balance between driving smoothness and fuel economy.

[0072] When developing the settings for the above modes, we generally take into account the usage habits and driving preferences of most people. However, there is also the problem of satisfying everyone. The mode settings cannot be fully segmented and cannot satisfy every customer.

[0073] Based on the above problems existing in the prior art, Figure 2 The following is a schematic diagram of an application scenario of the vehicle control method provided in the embodiment of the present application, which is used to solve the above technical problems. Figure 2As shown, the schematic diagram of the application scenario includes: vehicle 21 and user 22.

[0074] Among them, the vehicle 21 includes a function selection module for the driving mode set in the embodiment of the present application, that is, Figure 1 Between the shown ECO and COM, and between SPORT and COM, several more driving modes with options are added.

[0075] In a possible implementation, Figure 3 It is a schematic diagram of the driving mode function selection provided by the embodiment of the present application. As Figure 3 shown, three modes, namely ECO0, COM, and SPORT, are set on the driving mode knob. Between ECO0 and COM, ECO1... ECOx are added, and between SPORT and COM, COM1... COMy and other driving mode knobs are added.

[0076] Among them, the values of x and y are any integers, that is, any number of refined driving modes can be added.

[0077] Optionally, when the user 22 drives the vehicle 21 to run, the user manipulates the function selection module in the vehicle 21 to select a target driving mode suitable for himself. At this time, the electronic control unit (ECU) in the vehicle 21 controls the vehicle 21 to travel according to the torque required by the user 21 based on the target driving mode and the throttle opening of the user 21's foot.

[0078] It should be understood that in actual settings, the specific driving mode can also be selected through the progress bar method on the touch screen, and its implementation principle is the same, which will be given by the following embodiments.

[0079] Regarding the above technical problems, the inventor's technical concept process of the present application is as follows: The currently common driving modes are mainly ECO, COM, and SPORT modes. If the driving modes can be refined between these three modes, and the torque corresponding to a certain refined driving mode can be determined based on the voltage signals of the two known driving modes of this driving mode, then based on the torque and the throttle opening of the user during driving, the vehicle can be controlled to travel according to the user's own driving habits, effectively reducing the possibility of complaints from users in the market about the vehicle's driving style, and improving the user's vehicle use experience.

[0080] Next, taking Figure 2 the schematic diagram of the application scenario shown, the technical solution of the present application will be described in detail through specific embodiments. It should be noted that the following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the drawings.

[0081] Figure 4 This is a schematic flowchart of the first embodiment of the vehicle control method provided by the embodiments of the present application. As Figure 4 shown, this vehicle control method is applied to the ECU of the vehicle. The vehicle control method specifically includes the following steps:

[0082] Step 41: Obtain the opening degree of the vehicle's accelerator pedal.

[0083] In this step, when the user drives the vehicle on the road, the user controls the vehicle speed by the force of stepping on the accelerator pedal.

[0084] In any driving mode, the vehicle speed is related to the opening degree of the accelerator pedal, and the opening degree of the accelerator pedal is a percentage value.

[0085] Optionally, this step can be implemented in the following way:

[0086] Step 1: Obtain the displacement value of the vehicle's accelerator pedal.

[0087] Among them, the displacement value is the distance that the accelerator pedal drops.

[0088] In a possible implementation, when the vehicle is running, the user steps on the accelerator pedal to control the vehicle. Relative to before the vehicle starts, the distance that the accelerator pedal drops is the displacement value of the accelerator pedal (unit: cm).

[0089] Among them, the displacement value of the vehicle's accelerator pedal can be detected by a displacement sensor.

[0090] Step 2: Determine the opening degree of the accelerator pedal according to the displacement value.

[0091] In a possible implementation, after obtaining the displacement value of the accelerator pedal detected by the displacement sensor, according to this displacement value, the accelerator pedal signal voltage (unit: V) can be obtained. Based on this accelerator pedal signal voltage, (V-%) signal conversion is implemented to obtain the opening degree of the accelerator pedal.

[0092] For example, the opening degree of the accelerator pedal is 10%, 50%, etc.

[0093] Step 42: Determine the target torque corresponding to the target driving mode according to the opening degree of the accelerator pedal and the target driving mode selected by the user.

[0094] Among them, the target driving mode is the driving mode corresponding to the knob at any position selected by the user between the knob of the economy mode and the knob of the sports mode, and the target torque is determined according to the voltage signal value indicated by the knob corresponding to the target driving mode.

[0095] In this step, when the user is driving a vehicle on the road, it is often necessary to adjust the driving mode to conform to their driving habits. Combining Figure 3 , on the driving mode knob, there is a driving mode corresponding to the knob at any position between the economy mode knob and the sport mode knob. At this time, the user turns the knob to select the driving mode they choose.

[0096] Optionally, after determining the throttle pedal opening, according to the known Pedal Map, the throttle pedal look-up table output torque for the economy mode, the throttle pedal look-up table output torque for the comfort mode, and the throttle pedal look-up table output torque for the sport mode can be determined first.

[0097] Furthermore, when the user selects a driving mode corresponding to the knob at any position between the economy mode knob and the sport mode knob, the corresponding voltage signal values are different. Using the relationship between this voltage signal and the voltage signal values corresponding to the economy mode, comfort mode, and sport mode, and then based on the throttle pedal look-up table output torque, the target torque corresponding to the target driving mode can be obtained.

[0098] Optionally, according to the existing driving modes, the possible regions where the target driving mode may be located can be divided into three types:

[0099] One is that the target driving mode is a driving mode located between the economy mode and the comfort mode;

[0100] Two is that the target driving mode is a driving mode located between the sport mode and the comfort mode;

[0101] Three is that the target driving mode is a driving mode located between the economy mode and the sport mode.

[0102] Furthermore, according to the different regions where the target driving mode is located, the detailed methods for determining the target torque corresponding to the target driving mode are described respectively in Figure 6 , Figure 7 and Figure 8 .

[0103] It should be understood that in some implementations, it can also be through the touch screen method to select the target driving mode, and in other designs, it can be a section of line segment from the economy mode to the sport mode transition.

[0104] Step 43: Control the vehicle to run according to the target torque.

[0105] In this step, control the vehicle to run according to the target torque determined above. When the throttle pedal changes or the target driving mode is changed subsequently, the above method can still obtain the target torque required for the actual operation of the vehicle.

[0106] In a possible implementation, the vehicle is controlled to operate according to a target torque, such as 230 NM.

[0107] Specifically, Figure 5 This is a logic schematic diagram for the switching of driving modes provided by the embodiments of the present application, used to describe the principle of the Figure 4 embodiments shown. As Figure 5 shown:

[0108] The displacement detector detects the displacement of the accelerator pedal. After obtaining the displacement of the accelerator pedal, it is converted into the accelerator pedal signal voltage, and then the accelerator pedal signal voltage is converted into the accelerator pedal opening. The ECU uses the accelerator pedal opening to look up the table to obtain the accelerator pedal look-up table output torque, and then obtains the multi-stage driving mode pedal output torque according to the voltage signal values corresponding to multiple subdivided driving modes, so as to control the vehicle.

[0109] The vehicle control method provided by the embodiments of the present application is applied to the ECU of the vehicle. By obtaining the accelerator pedal opening of the vehicle and determining the target torque corresponding to the target driving mode according to the accelerator pedal opening and the target driving mode selected by the user, the target driving mode is the driving mode corresponding to the knob at any position selected by the user between the knob of the economy mode and the knob of the sports mode, and the target torque is determined according to the voltage signal value indicated by the knob corresponding to the target driving mode, and then the vehicle is controlled to operate according to the target torque. In this technical solution, by selecting any mode between the economy mode and the sports mode, the vehicle can operate according to the driving habits of the user, meeting the driving style preferences of the user.

[0110] Based on the above embodiments, Figure 6 This is a flowchart of the second embodiment of the vehicle control method provided by the embodiments of the present application. As Figure 6 shown, when the target driving mode is specifically the driving mode corresponding to the knob at any position selected by the user between the knob of the economy mode and the knob of the comfort mode, the above step 42 has the following implementation manners:

[0111] Step 61, obtain the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the economy mode, and the voltage signal value corresponding to the comfort mode.

[0112] In this step, the knob of the target driving mode is located between the knob of the economy mode and the knob of the comfort mode, that is, the voltage signal value corresponding to the target driving mode is also located between the voltage signal value corresponding to the economy mode and the voltage signal value corresponding to the comfort mode.

[0113] At this time, the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the economy mode, and the voltage signal value corresponding to the comfort mode can further determine the voltage ratio of the target driving mode between the economy mode and the comfort mode.

[0114] In a possible implementation, the voltage signal value corresponding to the economy mode is Veco0, the voltage signal value corresponding to the comfort mode is Vcom0, and the voltage signal value corresponding to the target driving mode is Vecox.

[0115] Among them, the value of x can be the number of driving modes set between the economy mode and the comfort mode in actual use.

[0116] Step 62: Determine the first interpolation ratio of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the economy mode, and the voltage signal value corresponding to the comfort mode.

[0117] Among them, the first interpolation ratio is used to indicate the voltage ratio of the target driving mode between the economy mode and the comfort mode.

[0118] In this step, the voltage signal value corresponding to the economy mode and the voltage signal value corresponding to the comfort mode can be used as the two ends of an increasing linear relationship. According to the voltage signal value corresponding to the target driving mode, the voltage ratio of the target driving mode between the economy mode and the comfort mode can be obtained, which is the first interpolation ratio.

[0119] In a possible implementation, the calculation formula of the first interpolation ratio Re (unit: %) is as follows:

[0120] Re = (Vecox - Veco0) / (Vcom0 - Veco0) * 100%

[0121] Step 63: Determine the target torque corresponding to the target driving mode according to the first interpolation ratio, the output torque corresponding to the economy mode at the throttle pedal opening, and the output torque corresponding to the comfort mode at the throttle pedal opening.

[0122] In this step, using the pedal map, the output torque corresponding to the economy mode at the throttle pedal opening and the output torque corresponding to the comfort mode at the throttle pedal opening can be determined. Based on this, between the two output torques, according to the first interpolation ratio, the target torque corresponding to the target driving mode is obtained.

[0123] In a possible implementation, the calculation formula of the target torque Tex (unit: NM) corresponding to the target driving mode is as follows:

[0124] Tex = Te0 + Re * (Tc0 - Te0)

[0125] Among them, the output torque corresponding to the economic mode at the throttle pedal opening is Te0, and the output torque corresponding to the comfort mode at the throttle pedal opening is Tc0.

[0126] It should be understood that for different driving modes, the embodiments of the present application describe examples of multi-level mode switching for the pedal map, which is also applicable to the gear shift map, steering force, etc., and will not be elaborated here.

[0127] The vehicle control method provided by the embodiments of the present application obtains the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the economic mode, and the voltage signal value corresponding to the comfort mode, determines the first interpolation ratio of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the economic mode, and the voltage signal value corresponding to the comfort mode, and finally determines the target torque corresponding to the target driving mode according to the first interpolation ratio, the output torque corresponding to the economic mode at the throttle pedal opening, and the output torque corresponding to the comfort mode at the throttle pedal opening. In this way, when the target driving mode is specifically the driving mode corresponding to any position of the knob selected by the user between the knob of the economic mode and the knob of the comfort mode, the vehicle can operate between the economic mode and the comfort mode according to the user's driving habits, meeting the user's driving style preferences.

[0128] Based on the above embodiments, Figure 7 is a schematic flowchart of the third embodiment of the vehicle control method provided by the embodiments of the present application. As Figure 7 shown, when the target driving mode is specifically the driving mode corresponding to any position of the knob selected by the user between the knob of the sport mode and the knob of the comfort mode, the above step 42 has the following implementation:

[0129] Step 71, obtain the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sport mode, and the voltage signal value corresponding to the comfort mode.

[0130] In this step, the knob of the target driving mode is located between the knob of the sport mode and the knob of the comfort mode, that is, the voltage signal value corresponding to the target driving mode is also between the voltage signal value corresponding to the sport mode and the voltage signal value corresponding to the comfort mode.

[0131] At this time, the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sport mode, and the voltage signal value corresponding to the comfort mode can further determine the voltage ratio of the target driving mode between the sport mode and the comfort mode.

[0132] In a possible implementation, the voltage signal value corresponding to the sport mode is Vspo, the voltage signal value corresponding to the comfort mode is Vcom0, and the voltage signal value corresponding to the target driving mode is Vcomy.

[0133] Among them, the value of y can be the number of driving modes set between the sports mode and the comfort mode in actual use.

[0134] Step 72: Determine the second interpolation ratio of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sports mode, and the voltage signal value corresponding to the comfort mode.

[0135] Among them, the second interpolation ratio is used to indicate the voltage ratio of the target driving mode between the sports mode and the comfort mode.

[0136] In this step, the voltage signal value corresponding to the sports mode and the voltage signal value corresponding to the comfort mode can be used as the two ends of an increasing linear relationship. According to the voltage signal value corresponding to the target driving mode, the voltage ratio of the target driving mode between the sports mode and the comfort mode can be obtained, which is the second interpolation ratio.

[0137] In a possible implementation, the calculation formula of the second interpolation ratio Rc (unit: %) is as follows:

[0138] Rc = (Vcomy - Vcom0) / (Vspo - Vcom0) * 100%

[0139] Step 73: Determine the target torque corresponding to the target driving mode according to the second interpolation ratio, the output torque corresponding to the sports mode at the throttle pedal opening, and the output torque corresponding to the comfort mode at the throttle pedal opening.

[0140] In this step, using the pedal map, the output torque corresponding to the sports mode at the throttle pedal opening and the output torque corresponding to the comfort mode at the throttle pedal opening can be determined. Based on this, between the two output torques, according to the second interpolation ratio, the target torque corresponding to the target driving mode is obtained.

[0141] In a possible implementation, the calculation formula of the target torque Tcy (unit: NM) corresponding to the target driving mode is as follows:

[0142] Tcy = Tc0 + Rc * (Ts - Tc0)

[0143] Among them, the output torque corresponding to the sports mode at the throttle pedal opening is Ts, and the output torque corresponding to the comfort mode at the throttle pedal opening is Tc0.

[0144] The control method of the vehicle provided by the embodiment of the present application obtains the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sports mode, and the voltage signal value corresponding to the comfort mode, and determines the second interpolation ratio of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sports mode, and the voltage signal value corresponding to the comfort mode. Then, according to the second interpolation ratio, the output torque corresponding to the sports mode at the throttle pedal opening, and the output torque corresponding to the comfort mode at the throttle pedal opening, the target torque corresponding to the target driving mode is determined. In this way, when the target driving mode is specifically the driving mode corresponding to any position of the knob selected by the user between the knob of the sports mode and the knob of the comfort mode, the vehicle can operate between the sports mode and the comfort mode according to the user's driving habits, meeting the user's driving style preferences.

[0145] Based on the above embodiment, Figure 8 It is a schematic flowchart of the fourth embodiment of the control method of the vehicle provided by the embodiment of the present application. As Figure 8 shown, the above step 42 has the following implementation manners:

[0146] Step 81: Obtain the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sports mode, and the voltage signal value corresponding to the economy mode.

[0147] In this step, the knob of the target driving mode is located between the knob of the economy mode and the knob of the sports mode, that is, the voltage signal value corresponding to the target driving mode is also between the voltage signal value corresponding to the economy mode and the voltage signal value corresponding to the sports mode.

[0148] At this time, the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the economy mode, and the voltage signal value corresponding to the sports mode can further determine the voltage ratio of the target driving mode between the economy mode and the sports mode.

[0149] In a possible implementation, the voltage signal value corresponding to the sports mode is Vspo, the voltage signal value corresponding to the economy mode is Veco0, and the voltage signal value corresponding to the target driving mode is Vspoz.

[0150] Among them, the value of z can be the number of driving modes set between the economy mode and the sports mode in actual application.

[0151] Step 82: Determine the third interpolation ratio of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sports mode, and the voltage signal value corresponding to the economy mode.

[0152] Among them, the third interpolation ratio is used to indicate the voltage ratio of the target driving mode between the sports mode and the economy mode.

[0153] In this step, the voltage signal value corresponding to the economic mode and the voltage signal value corresponding to the sport mode can be used as the two ends of an increasing linear relationship. According to the voltage signal value corresponding to the target driving mode, the voltage ratio of the target driving mode between the economic mode and the sport mode can be obtained, which is the third interpolation ratio.

[0154] In a possible implementation, the calculation formula for the third interpolation ratio Rs (unit: %) is as follows:

[0155] Rs = (Vspoz - Veco0) / (Vspo - Veco0) * 100%

[0156] Step 83: Determine the target torque corresponding to the target driving mode according to the third interpolation ratio, the output torque corresponding to the sport mode at the throttle pedal opening, and the output torque corresponding to the economic mode at the throttle pedal opening.

[0157] In this step, using the pedal map, the output torque corresponding to the economic mode at the throttle pedal opening and the output torque corresponding to the sport mode at the throttle pedal opening can be determined. Based on this, between the two output torques, according to the first interpolation ratio, the target torque corresponding to the target driving mode is obtained.

[0158] In a possible implementation, the calculation formula for the target torque Tez (unit: N·m) corresponding to the target driving mode is as follows:

[0159] Tez = Te0 + Rs * (Ts - Te0)

[0160] Among them, the output torque corresponding to the economic mode at the throttle pedal opening is Te0, and the output torque corresponding to the sport mode at the throttle pedal opening is Ts.

[0161] The vehicle control method provided by the embodiments of the present application, by obtaining the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sport mode, and the voltage signal value corresponding to the economic mode, determines the third interpolation ratio of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sport mode, and the voltage signal value corresponding to the economic mode. Then, according to the third interpolation ratio, the output torque corresponding to the sport mode at the throttle pedal opening, and the output torque corresponding to the economic mode at the throttle pedal opening, the target torque corresponding to the target driving mode is determined. In this way, when the target driving mode is specifically the driving mode corresponding to any position of the knob selected by the user between the knob of the sport mode and the knob of the economic mode, the vehicle can run between the sport mode and the economic mode according to the user's driving habits, meeting the user's driving style preferences.

[0162] Based on the above method embodiments,Figure 9 This is a schematic structural diagram of a control device for a vehicle provided by an embodiment of the present application. As Figure 9 shown, this control device for the vehicle is applied to the vehicle's powertrain control unit ECU and includes:

[0163] An acquisition module 91, configured to acquire the opening degree of the vehicle's accelerator pedal;

[0164] A determination module 92, configured to determine a target torque corresponding to the target driving mode according to the opening degree of the accelerator pedal and the target driving mode selected by the user. The target driving mode is the driving mode corresponding to any position of the knob selected by the user between the knob of the economy mode and the knob of the sport mode, and the target torque is determined according to the voltage signal value indicated by the knob corresponding to the target driving mode;

[0165] A control module 93, configured to control the vehicle to operate according to the target torque.

[0166] In a possible design of an embodiment of the present application, the target driving mode is specifically the driving mode corresponding to any position of the knob selected by the user between the knob of the economy mode and the knob of the comfort mode;

[0167] Correspondingly, the determination module 92 determines the target torque corresponding to the target driving mode according to the opening degree of the accelerator pedal and the target driving mode selected by the user, specifically for:

[0168] Acquire the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the economy mode, and the voltage signal value corresponding to the comfort mode;

[0169] According to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the economy mode, and the voltage signal value corresponding to the comfort mode, determine a first interpolation ratio of the target driving mode, where the first interpolation ratio is used to indicate the voltage ratio of the target driving mode between the economy mode and the comfort mode;

[0170] According to the first interpolation ratio, the output torque corresponding to the economy mode at the opening degree of the accelerator pedal, and the output torque corresponding to the comfort mode at the opening degree of the accelerator pedal, determine the target torque corresponding to the target driving mode.

[0171] In another possible design of an embodiment of the present application, the target driving mode is specifically the driving mode corresponding to any position of the knob selected by the user between the sport mode knob and the comfort mode knob;

[0172] Correspondingly, the determination module 92 determines the target torque corresponding to the target driving mode according to the opening degree of the accelerator pedal and the target driving mode selected by the user, specifically for:

[0173] Obtain the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sports mode, and the voltage signal value corresponding to the comfort mode;

[0174] According to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sports mode, and the voltage signal value corresponding to the comfort mode, determine the second interpolation ratio of the target driving mode, where the second interpolation ratio is used to indicate the voltage proportion of the target driving mode between the sports mode and the comfort mode;

[0175] According to the second interpolation ratio, the output torque corresponding to the sports mode at the throttle pedal opening, and the output torque corresponding to the comfort mode at the throttle pedal opening, determine the target torque corresponding to the target driving mode.

[0176] In another possible design of the embodiments of the present application, the determining module 92 determines the target torque corresponding to the target driving mode according to the throttle pedal opening and the target driving mode selected by the user, specifically for:

[0177] Obtain the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sports mode, and the voltage signal value corresponding to the economy mode;

[0178] According to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sports mode, and the voltage signal value corresponding to the economy mode, determine the third interpolation ratio of the target driving mode, where the third interpolation ratio is used to indicate the voltage proportion of the target driving mode between the sports mode and the economy mode;

[0179] According to the third interpolation ratio, the output torque corresponding to the sports mode at the throttle pedal opening, and the output torque corresponding to the economy mode at the throttle pedal opening, determine the target torque corresponding to the target driving mode.

[0180] Optionally, the obtaining module 91 obtains the throttle pedal opening of the vehicle, specifically for:

[0181] Obtain the displacement value of the throttle pedal of the vehicle, where the displacement value is the distance that the throttle pedal drops;

[0182] According to the displacement value, determine the throttle pedal opening of the throttle pedal.

[0183] The vehicle control device provided in the embodiments of the present application can be used to execute the technical solutions corresponding to the vehicle control method in the above embodiments, and its implementation principle and technical effects are similar, and will not be described in detail here.

[0184] It should be noted that the division of each module of the above device is only a division of logical functions. In actual implementation, it can be fully or partially integrated into a physical entity, or physically separated. And these modules can all be implemented in the form of software called by a processing element; they can also all be implemented in the form of hardware; it is also possible that some modules are implemented in the form of software called by a processing element, and some modules are implemented in the form of hardware. In addition, all or part of these modules can be integrated together or independently implemented. The processing element mentioned here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules can be completed by the integrated logic circuit in the processor element or the instructions in the form of software.

[0185] Figure 10 FIG. is a schematic structural diagram of an ECU provided by an embodiment of the present application. As Figure 10 shown, the ECU may include: a processor 100, a memory 101, and computer program instructions stored on the memory 101 and executable on the processor 100.

[0186] The processor 100 executes the computer execution instructions stored in the memory 101, so that the processor 100 executes the solutions in the above embodiments. The processor 100 may be a general-purpose processor, including a central processing unit CPU, a network processor (NP), etc.; it may also be a digital signal processor DSP, an application specific integrated circuit ASIC, a field programmable gate array FPGA, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0187] Optionally, the ECU may further include: a transceiver 102.

[0188] The memory 101 and the transceiver 102 are connected to the processor 100 through a system bus and complete communication with each other. The memory 101 is used to store computer program instructions.

[0189] The transceiver 102 is used to communicate with other devices, and the transceiver 102 constitutes a communication interface.

[0190] Optionally, in terms of hardware implementation, the above Figure 9 acquisition module 91 in the illustrated embodiment corresponds to the transceiver 102 in this embodiment.

[0191] The system bus can be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The system bus can be divided into an address bus, a data bus, a control bus, etc. For the sake of convenience in representation, only a thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0192] The ECU provided by the embodiment of the present application can be used to execute the technical solution corresponding to the vehicle control method in the above embodiment, and its implementation principle and technical effect are similar, which will not be elaborated here.

[0193] The embodiment of the present application also provides a chip for running instructions, and the chip is used to execute the technical solution of the vehicle control method in the above embodiment.

[0194] The embodiment of the present application also provides a computer-readable storage medium, and computer instructions are stored in the computer-readable storage medium. When the computer instructions run on the ECU, the ECU is enabled to execute the technical solution of the vehicle control method in the above embodiment.

[0195] The embodiment of the present application also provides a computer program product, including a computer program, and the computer program is used to execute the technical solution of the vehicle control method in the above embodiment when being executed by a processor.

[0196] The above computer-readable storage medium 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, a magnetic disk, or an optical disc. The readable storage medium can be any available medium that can be accessed by a general or dedicated ECU.

[0197] It should be understood that the present disclosure is not limited to the exact structure already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A control method for a vehicle, characterized in that, A powertrain control unit (ECU) applied to a vehicle, the method comprising: Obtaining the opening degree of the accelerator pedal of the vehicle; Determining a target torque corresponding to the target driving mode according to the opening degree of the accelerator pedal and the target driving mode selected by the user, where the target driving mode is the driving mode corresponding to the knob at any position selected by the user between the knob of the economy mode and the knob of the sports mode, and the target torque is determined according to the voltage signal value indicated by the knob corresponding to the target driving mode; Controlling the vehicle to operate according to the target torque; The target driving mode is specifically the driving mode corresponding to the knob at any position selected by the user between the knob of the economy mode and the knob of the comfort mode; Correspondingly, the determining the target torque corresponding to the target driving mode according to the opening degree of the accelerator pedal and the target driving mode selected by the user includes: Obtaining the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the economy mode, and the voltage signal value corresponding to the comfort mode; Determining a first interpolation ratio of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the economy mode, and the voltage signal value corresponding to the comfort mode, where the first interpolation ratio is used to indicate the voltage proportion of the target driving mode between the economy mode and the comfort mode; Determining the target torque corresponding to the target driving mode according to the first interpolation ratio, the output torque corresponding to the economy mode at the opening degree of the accelerator pedal, and the output torque corresponding to the comfort mode at the opening degree of the accelerator pedal.

2. The method according to claim 1, wherein The target driving mode is specifically the driving mode corresponding to the knob at any position selected by the user between the knob of the sports mode and the knob of the comfort mode; Correspondingly, the determining the target torque corresponding to the target driving mode according to the opening degree of the accelerator pedal and the target driving mode selected by the user includes: Obtaining the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sports mode, and the voltage signal value corresponding to the comfort mode; Determining a second interpolation ratio of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sports mode, and the voltage signal value corresponding to the comfort mode, where the second interpolation ratio is used to indicate the voltage proportion of the target driving mode between the sports mode and the comfort mode; Determining the target torque corresponding to the target driving mode according to the second interpolation ratio, the output torque corresponding to the sports mode at the opening degree of the accelerator pedal, and the output torque corresponding to the comfort mode at the opening degree of the accelerator pedal.

3. The method according to claim 1, wherein The determining the target torque corresponding to the target driving mode according to the opening degree of the accelerator pedal and the target driving mode selected by the user includes: Obtaining the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sports mode, and the voltage signal value corresponding to the economy mode; Determine a third interpolation ratio of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the sports mode, and the voltage signal value corresponding to the economy mode, where the third interpolation ratio is used to indicate the voltage proportion of the target driving mode between the sports mode and the economy mode; Determine the target torque corresponding to the target driving mode according to the third interpolation ratio, the output torque corresponding to the sports mode at the throttle pedal opening, and the output torque corresponding to the economy mode at the throttle pedal opening.

4. The method according to any one of claims 1 to 3, characterized in that, The obtaining the throttle pedal opening of the vehicle includes: Obtain the displacement value of the throttle pedal of the vehicle, where the displacement value is the distance that the throttle pedal drops; Determine the throttle pedal opening of the throttle pedal according to the displacement value.

5. A control device for a vehicle, characterized in that, Applied to the vehicle's powertrain control unit ECU, the device includes: An obtaining module, configured to obtain the throttle pedal opening of the vehicle; A determining module, configured to determine the target torque corresponding to the target driving mode according to the throttle pedal opening and the target driving mode selected by the user, where the target driving mode is the driving mode corresponding to the knob at any position selected by the user between the knob of the economy mode and the knob of the sports mode, and the target torque is determined according to the voltage signal value indicated by the knob corresponding to the target driving mode; A control module, configured to control the vehicle to run according to the target torque; The target driving mode is specifically the driving mode corresponding to the knob at any position selected by the user between the knob of the economy mode and the knob of the comfort mode; Correspondingly, the determining module is specifically configured to: Obtain the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the economy mode, and the voltage signal value corresponding to the comfort mode; Determine a first interpolation ratio of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the economy mode, and the voltage signal value corresponding to the comfort mode, where the first interpolation ratio is used to indicate the voltage proportion of the target driving mode between the economy mode and the comfort mode; Determine the target torque corresponding to the target driving mode according to the first interpolation ratio, the output torque corresponding to the economy mode, and the output torque corresponding to the comfort mode.

6. An ECU, comprising: A processor, a memory, and computer program instructions stored on the memory and executable on the processor, wherein when the processor executes the computer program instructions, the control method of the vehicle according to any one of claims 1 to 4 above is implemented.

7. A computer-readable storage medium, characterized in that, Computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by the processor, they are used to implement the control method of the vehicle according to any one of claims 1 to 4 above.

8. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it is used to implement the control method of the vehicle according to any one of claims 1 to 4 above.

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