CN114802062A - Vehicle control method, device, ECU and storage medium - Google Patents
Vehicle control method, device, ECU and storage medium Download PDFInfo
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- CN114802062A CN114802062A CN202210582783.3A CN202210582783A CN114802062A CN 114802062 A CN114802062 A CN 114802062A CN 202210582783 A CN202210582783 A CN 202210582783A CN 114802062 A CN114802062 A CN 114802062A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
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Abstract
The method is applied to the ECU of the vehicle, the accelerator pedal opening of the vehicle is obtained, the target torque corresponding to the target driving mode is determined according to the accelerator pedal opening and the target driving mode selected by a 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, 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 run according to the target torque. According to the technical scheme, any mode is selected between the economic mode and the motion mode, so that the vehicle can run according to the driving habits of the user, and the driving style preference of the user is met.
Description
Technical Field
The present application relates to the field of automotive technologies, and in particular, to a method and an apparatus for controlling a vehicle, an ECU, and a storage medium.
Background
With the increasing popularity of automobiles, manufacturers need to improve the operation performance of vehicles to meet the demands of users in order to stand out in competition, and therefore, many vehicles are provided with a function of "driving mode selection" in the vehicles sold at present.
In the prior art, on a vehicle, a user can switch driving modes such as Economy (ECO), Comfort (COM), SPORT (SPORT) and the like through a hardware switch (such as a knob) or a soft switch (such as a central control touch screen), so that the driving style preference requirements of different users are well met.
However, such a simple design of a small number of driving patterns only roughly conforms to the driving habits of some users, but cannot ensure the driving habits of every person, so how to design a driving pattern suitable for the driving habits of most people is a technical problem to be solved urgently.
Disclosure of Invention
The embodiment of the application provides a control method and device of a vehicle, an ECU (electronic control unit) and a storage medium, which are used for solving the technical problem of how to design a driving mode suitable for the driving habits of most people.
In a first aspect, an embodiment of the present application provides a control method of a vehicle, applied to a power control unit ECU of the vehicle, the method including:
acquiring the opening degree of an accelerator pedal of the vehicle;
determining a target torque corresponding to a target driving mode according to the opening degree of the accelerator pedal and the target driving mode selected by a user, wherein the target driving mode is the driving mode corresponding to a knob at any position selected by the user between a knob in an economy mode and a knob in a motion mode, and the target torque is determined according to a voltage signal value indicated by the knob corresponding to the target driving mode;
and controlling the vehicle to operate according to the target torque.
In a possible design of the first aspect, the target driving mode is a driving mode corresponding to a knob at any position selected by the user between the knob in the economy mode and the knob in the comfort mode;
correspondingly, the 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 includes:
acquiring a voltage signal value corresponding to the target driving mode, a voltage signal value corresponding to the economy mode and a voltage signal value corresponding to the comfort mode;
determining a first interpolation proportion 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, wherein the first interpolation proportion is used for indicating the voltage ratio of the target driving mode between the economy mode and the comfort mode;
and determining a target torque corresponding to the target driving mode according to the first interpolation proportion, the output torque corresponding to the economy mode under the opening degree of the accelerator pedal and the output torque corresponding to the comfort mode under the opening degree of the accelerator pedal.
In another possible design of the first aspect, the target driving mode is a driving mode corresponding to a knob at any position selected by the user between the sport mode knob and the comfort mode knob;
correspondingly, the 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 includes:
acquiring a voltage signal value corresponding to the target driving mode, a voltage signal value corresponding to the motion mode and a voltage signal value corresponding to the comfort mode;
determining a second interpolation proportion 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, wherein the second interpolation proportion is used for indicating the voltage ratio of the target driving mode between the sport mode and the comfort mode;
and determining a target torque corresponding to the target driving mode according to the second interpolation proportion, the output torque corresponding to the motion mode under the opening degree of the accelerator pedal and the output torque corresponding to the comfortable mode under the opening degree of the accelerator pedal.
In yet another possible design of the first aspect, the determining a target torque corresponding to a target driving mode according to the accelerator pedal opening and the target driving mode selected by a user includes:
acquiring a voltage signal value corresponding to the target driving mode, a voltage signal value corresponding to the motion mode and a voltage signal value corresponding to the economy mode;
determining a third interpolation proportion 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, wherein the third interpolation proportion is used for indicating the voltage ratio of the target driving mode between the sport mode and the economy mode;
and determining a target torque corresponding to the target driving mode according to the third interpolation proportion, the output torque corresponding to the motion mode under the opening degree of the accelerator pedal and the output torque corresponding to the economy mode under the opening degree of the accelerator pedal.
Optionally, the obtaining the opening degree of an accelerator pedal of the vehicle includes:
acquiring a displacement value of an accelerator pedal of the vehicle, wherein the displacement value is the falling distance of the accelerator pedal;
and determining the accelerator pedal opening degree of the accelerator pedal according to the displacement value.
In a second aspect, an embodiment of the present application provides a control apparatus of a vehicle, applied to a power control unit ECU of the vehicle, the apparatus including:
the acquisition module is used for acquiring the opening degree of an accelerator pedal of the vehicle;
the determining module is used for determining a target torque corresponding to a target driving mode according to the opening degree of the accelerator pedal and the target driving mode selected by a user, wherein the target driving mode is the driving mode corresponding to a knob at any position selected by the user between a knob in an economy mode and a knob in a motion mode, and the target torque is determined according to a voltage signal value indicated by the knob corresponding to the target driving mode;
and the control module is used for controlling the vehicle to operate according to the target torque.
In one possible design of the second aspect, the target driving mode is a driving mode corresponding to a knob at any position selected by the user between the knob in the economy mode and the knob in the comfort mode;
correspondingly, the determining module is specifically configured to:
acquiring a voltage signal value corresponding to the target driving mode, a voltage signal value corresponding to the economy mode and a voltage signal value corresponding to the comfort mode;
determining a first interpolation proportion 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, wherein the first interpolation proportion is used for indicating the voltage ratio of the target driving mode between the economy mode and the comfort mode;
and determining a target torque corresponding to the target driving mode according to the first interpolation proportion, the output torque corresponding to the economy mode under the opening degree of the accelerator pedal and the output torque corresponding to the comfort mode under the opening degree of the accelerator pedal.
In yet another possible design of the second aspect, the target driving mode is a driving mode corresponding to a knob at any position selected by the user between the sport mode knob and the comfort mode knob;
correspondingly, the determining module is specifically configured to:
acquiring a voltage signal value corresponding to the target driving mode, a voltage signal value corresponding to the motion mode and a voltage signal value corresponding to the comfort mode;
determining a second interpolation proportion 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, wherein the second interpolation proportion is used for indicating the voltage ratio of the target driving mode between the sport mode and the comfort mode;
and determining a target torque corresponding to the target driving mode according to the second interpolation proportion, the output torque corresponding to the motion mode under the opening degree of the accelerator pedal and the output torque corresponding to the comfortable mode under the opening degree of the accelerator pedal.
In yet another possible design of the second aspect, the determining module is specifically configured to:
acquiring a voltage signal value corresponding to the target driving mode, a voltage signal value corresponding to the motion mode and a voltage signal value corresponding to the economy mode;
determining a third interpolation proportion 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, wherein the third interpolation proportion is used for indicating the voltage ratio of the target driving mode between the sport mode and the economy mode;
and determining a target torque corresponding to the target driving mode according to the third interpolation proportion, the output torque corresponding to the movement mode under the opening degree of the accelerator pedal and the output torque corresponding to the economy mode under the opening degree of the accelerator pedal.
Optionally, the obtaining module obtains an accelerator pedal opening degree of the vehicle, and is specifically configured to:
acquiring a displacement value of an accelerator pedal of the vehicle, wherein the displacement value is the falling distance of the accelerator pedal;
and determining the accelerator pedal opening degree of the accelerator pedal according to the displacement value.
In a third aspect, an embodiment of the present application provides an ECU including: a processor, a memory;
the memory stores computer-executable instructions;
the processor executes the computer-executable instructions so that the ECU executes the control method of the vehicle as described in the first aspect and various possible designs described above.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, the computer-readable storage medium is used for implementing a control method for a vehicle as described in the first aspect and various possible designs.
In a fifth aspect, embodiments of the present application provide a computer program product comprising a computer program for implementing a control method of a vehicle as described in the first aspect and various possible designs described above when executed by a processor.
The method is applied to the ECU of the vehicle, the accelerator pedal opening of the vehicle is obtained, the target torque corresponding to the target driving mode is determined according to the accelerator pedal opening and the target driving mode selected by a 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, 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. According to the technical scheme, any mode is selected between the economic mode and the motion mode, so that the vehicle can run according to the driving habits of the user, and the driving style preference of the user is met.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic diagram of a prior art driving mode function selection provided by an embodiment of the present application;
fig. 2 is a schematic application scenario diagram of a control method of a vehicle according to an embodiment of the present application;
FIG. 3 is a schematic view of a driving mode function selection provided by an embodiment of the present application;
fig. 4 is a schematic flowchart of a first embodiment of a control method for a vehicle according to an embodiment of the present application;
FIG. 5 is a logic diagram illustrating switching of driving modes according to an embodiment of the present application;
fig. 6 is a schematic flowchart of a second embodiment of a vehicle control method according to an embodiment of the present application;
fig. 7 is a schematic flowchart of a third embodiment of a control method for a vehicle according to an embodiment of the present application;
fig. 8 is a schematic flowchart of a fourth embodiment of a control method for a vehicle according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of a control device of a vehicle according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of an ECU provided in the embodiment of the present application.
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Before introducing the embodiments of the present application, the background of the present application is explained first:
many types of passenger vehicles on the market are provided with a "driving mode selection" function. The user can switch driving modes such as Economy (ECO), Comfort (COM), SPORT (SPORT) and the like through a hardware switch (such as a knob) or a soft switch (such as a central control touch screen), and the driving style preference requirements of different users are well met.
Fig. 1 is a schematic diagram of a prior art driving mode function selection provided by an embodiment of the present application, and as shown in fig. 1, the driving mode knob is provided with three modes, namely ECO, COM, and port, when the vehicle is in an ECO mode.
Generally, there are obvious differences in driving style among ECO, COM and SPORT modes, and the setting of the accelerator Pedal pulse spectrum (Pedal Map) in different driving modes takes into account the use needs of most people, but cannot ensure to meet the driving habits or preferences of each person.
Specifically, different driving modes correspond to different user requirements, for example, an ECO mode generally highlights fuel economy, an accelerator pedal pulse spectrum in the mode is weak, and the rotating speed of a shift point is low; the pulse spectrum of the accelerator pedal in the SPORT mode is obviously stronger, and the rotating speed of a gear shifting point is higher, so that the quick power response and the abundant torque output are ensured; and the COM mode is a middle torque, gives consideration to fuel economy and dynamic property, and highlights the balance of driving smoothness and fuel economy.
For the setting development of the modes, the use habits and driving preferences of most people are considered, but the problem of strangeness among people exists, and the mode setting cannot be subdivided in a full range and cannot be satisfied by each client.
Based on the problems in the prior art, fig. 2 is a schematic view of an application scenario of a control method of a vehicle according to an embodiment of the present application, so as to solve the technical problems. As shown in fig. 2, the application scenario diagram includes: vehicle 21, user 22.
The vehicle 21 includes a function selection module of the driving mode set in the embodiment of the present application, that is, a driving mode with several more options added between ECO and COM and between port and COM shown in fig. 1.
In a possible implementation, fig. 3 is a schematic view of selecting a driving mode function provided by an embodiment of the present application, and as shown in fig. 3, the driving mode knob is provided with three modes, namely, ECO0, COM, and port, ECO1 … … ECOx is added between ECO0 and COM, and a driving mode knob, such as COM1 … … COMy, is added between port and COM.
The values of x and y are any integers, and any number of refined driving modes can be increased.
Alternatively, when the user 22 drives the vehicle 21, the user operates the function selection module in the vehicle 21 to select a target driving mode suitable for the user, and an Electronic Control Unit (ECU) in the vehicle 21 controls the vehicle 21 to run according to the target driving mode and the accelerator opening at the foot of the user 21 according to the torque required by the user 21.
It should be understood that, in the actual setting, a specific driving mode can be selected by means of a progress bar of the touch screen, and the implementation principle is the same and is given by the following embodiments.
In order to solve the technical problems, the technical conception process of the inventor is as follows: at present, common driving modes are mainly ECO, COM and SPORT modes, if the driving modes can be refined among the three modes, and the torque corresponding to a certain refined driving mode can be determined and obtained on the basis of voltage signals of the driving mode in two known driving modes, so that the vehicle can be controlled to run according to the driving habits of a user on the basis of the torque and the opening degree of an accelerator of the user in the driving process, the possibility of complaints of the user on the driving style of the vehicle in the market is effectively reduced, and the vehicle using experience of the user can be improved.
The technical solution of the present application is described in detail below with reference to an application scenario diagram shown in fig. 2 by specific embodiments. It should be noted that the following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
Fig. 4 is a schematic flowchart of a first embodiment of a vehicle control method according to an embodiment of the present application. As shown in fig. 4, the control method of the vehicle is applied to an ECU of the vehicle, and specifically includes the steps of:
and step 41, acquiring the opening degree of an accelerator pedal of the vehicle.
In the step, when the user drives the vehicle to run on the road, the user controls the speed of the vehicle by the force of stepping on the accelerator.
In any driving mode, the speed of the vehicle is related to the opening degree of an accelerator pedal, and the opening degree of the accelerator pedal is a percentage value.
Optionally, this step may be implemented as follows:
and step 1, acquiring a displacement value of an accelerator pedal of the vehicle.
Wherein the displacement value is the falling distance of the accelerator pedal.
In one possible implementation, when the vehicle is running, the user controls the vehicle by stepping on an accelerator pedal, and the distance of the accelerator pedal falling relative to the distance before the vehicle is not started is the displacement value (unit: cm) of the accelerator pedal.
The displacement value of the accelerator pedal of the vehicle can be detected by a displacement sensor.
And step 2, determining the opening degree of the accelerator pedal according to the displacement value.
In one possible implementation, after the displacement value of the accelerator pedal detected by the displacement sensor is obtained, the accelerator pedal signal voltage (unit: V) can be obtained according to the displacement value, and (V-%) signal conversion is realized based on the accelerator pedal signal voltage to obtain the accelerator pedal opening of the accelerator pedal.
For example, the accelerator pedal opening is 10%, 50%, or the like.
And step 42, 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.
The target driving mode is a driving mode corresponding to a knob at any position selected by a user between a knob of the economy mode and a knob of the sport mode, and the target torque is determined according to a voltage signal value indicated by the knob corresponding to the target driving mode.
In this step, when the user drives the vehicle to run on the road, the driving mode is often required to be adjusted to conform to the driving habit of the user, and with reference to fig. 3, on the knob of the driving mode, there is a driving mode corresponding to the knob at any position between the knob of the economy mode and the knob of the sport mode, and at this time, the user rotates the knob to select the driving mode selected by the user.
Optionally, after the opening degree of the accelerator Pedal is determined, according to a known Pedal pulse spectrum (Pedal Map), the economic mode accelerator Pedal lookup table output torque, the comfort mode accelerator Pedal lookup table output torque and the sport mode accelerator Pedal lookup table output torque may be determined first.
Further, when the user selects the driving mode corresponding to the knob at any position between the knob in the economy mode and the knob in the sport mode, the corresponding voltage signal values are different, and the torque is output based on the table look-up of the accelerator pedal by utilizing the relation between the voltage signal and the voltage signal values corresponding to the economy mode, the comfort mode and the sport mode, so that the target torque corresponding to the target driving mode can be obtained.
Optionally, according to the existing driving mode, the possible regions of the target driving mode can be divided into three types:
first, the target driving mode is a driving mode between the economy mode and the comfort mode;
secondly, the target driving mode is a driving mode between a sport mode and a comfort mode;
and thirdly, the target driving mode is a driving mode between the economy mode and the sport mode.
Further, the details of the target torque determination method corresponding to the target driving mode are respectively shown in fig. 6, 7 and 8 according to the different regions where the target driving mode is located.
It should be understood that in some implementations, the target driving mode may also be selected by way of a touch screen, and in other designs, may be a segment of the transition from economy mode to sport mode.
And 43, controlling the vehicle to operate according to the target torque.
In this step, the vehicle is controlled to operate according to the determined target torque, and when the subsequent accelerator pedal is changed or the target driving mode is changed, the method can still obtain the target torque required by the actual operation of the vehicle.
In one possible implementation, the vehicle is controlled to operate at a target torque, such as 230 NM.
Specifically, fig. 5 is a logic diagram of switching driving modes according to an embodiment of the present application, so as to describe the principle of the embodiment shown in fig. 4. As shown in fig. 5:
the displacement detector detects the displacement of the accelerator pedal, the displacement of the accelerator pedal is converted into the signal voltage of the accelerator pedal after the displacement of the accelerator pedal is obtained, then the signal voltage of the accelerator pedal is converted into the opening degree of the accelerator pedal, the ECU obtains the output torque of the lookup table of the accelerator pedal by utilizing the opening degree of the accelerator pedal and looking up the table, and then the output torque of the pedal in the multilevel driving modes is obtained according to the voltage signal values corresponding to the subdivided driving modes so as to realize the control of the vehicle.
The control method of the vehicle is applied to an ECU of the vehicle, the target torque corresponding to the target driving mode is determined by acquiring the opening degree of an accelerator pedal of the vehicle and according to the opening degree of the accelerator pedal and the target driving mode selected by a user, the target driving mode is the driving mode corresponding to a knob at any position selected by the user between a knob of an economy mode and a knob of a sport mode, the target torque is determined according to a 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. According to the technical scheme, any mode is selected between the economy mode and the sport mode, so that the vehicle can run according to the driving habits of the user, and the driving style preference of the user is met.
On the basis of the foregoing embodiment, fig. 6 is a schematic flowchart of a second embodiment of a vehicle control method provided in the embodiment of the present application. As shown in fig. 6, when the target driving mode is the driving mode corresponding to the knob at any position selected by the user between the knob in the economy mode and the knob in the comfort mode, the step 42 is implemented as follows:
and step 61, acquiring a voltage signal value corresponding to the target driving mode, a voltage signal value corresponding to the economic mode and a voltage signal value corresponding to the comfortable mode.
In this step, the knob for the target driving mode is located between the knob for the economy mode and the knob for the comfort mode, i.e., 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.
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 may further determine the voltage ratio of the target driving mode between the economy mode and the comfort mode.
In one possible implementation, the eco mode corresponds to Veco0, the comfort mode corresponds to Vcom0, and the target driving mode corresponds to Vecox.
Wherein the value of x may be the number of driving modes set between the economy mode and the comfort mode in actual use.
And step 62, determining a first interpolation proportion 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.
Wherein the first interpolation ratio is used to indicate a voltage ratio of the target driving mode between the economy mode and the comfort mode.
In this step, the voltage signal value corresponding to the economy mode and the voltage signal value corresponding to the comfort mode may be used as both ends of the increasing linear relationship, and 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 may be obtained, that is, the first interpolation ratio.
In one possible implementation, the first interpolation ratio Re (unit:%) is calculated as follows:
Re＝(Vecox-Veco0)/(Vcom0-Veco0)*100％
and step 63, determining a target torque corresponding to the target driving mode according to the first interpolation proportion, the output torque corresponding to the economic mode under the opening degree of the accelerator pedal and the output torque corresponding to the comfortable mode under the opening degree of the accelerator pedal.
In this step, 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 can be determined by using the pedal pulse spectrum, and based on this, the target torque corresponding to the target driving mode is obtained between the two output torques according to the first interpolation ratio.
In one possible implementation, the target torque Tex (unit: NM) for the target drive mode is calculated as follows:
Tex＝Te0+Re*(Tc0-Te0)
the output torque corresponding to the economy mode under the opening degree of the accelerator pedal is Te0, and the output torque corresponding to the comfort mode under the opening degree of the accelerator pedal is Tc 0.
It should be understood that, for different driving modes, the embodiment of the present application describes an example of multi-stage mode switching for a pedal pulse spectrum, and the same applies for a gear shift pulse spectrum (gear shift map), a steering force, and the like, and details are not described herein again.
According to the control method of the vehicle, 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 comfortable mode are obtained, the first interpolation proportion of the target driving mode is determined 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 comfortable mode, and finally the target torque corresponding to the target driving mode is determined according to the first interpolation proportion, the output torque corresponding to the economic mode under the opening degree of the accelerator pedal and the output torque corresponding to the comfortable mode under the opening degree of the accelerator pedal. In the mode, when the target driving mode is specifically the driving mode corresponding to the knob at any position selected by the user between the knob in the economy mode and the knob in the comfort mode, the vehicle can operate between the economy mode and the comfort mode according to the driving habits of the user, and the driving style preference of the user is met.
On the basis of the foregoing embodiment, fig. 7 is a schematic flowchart of a third embodiment of a control method for a vehicle according to the embodiment of the present application. As shown in fig. 7, when the target driving mode is the driving mode corresponding to the knob at any position selected by the user between the knob in the sport mode and the knob in the comfort mode, the step 42 is implemented as follows:
and step 71, acquiring a voltage signal value corresponding to the target driving mode, a voltage signal value corresponding to the motion mode and a voltage signal value corresponding to the comfort mode.
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, i.e. the voltage signal value corresponding to the target driving mode is also located between the voltage signal value corresponding to the sport mode and the voltage signal value corresponding to the comfort mode.
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 may further determine the voltage ratio of the target driving mode between the sport mode and the comfort mode.
In one possible implementation, the voltage signal value corresponding to the sport mode is Vspo, the voltage signal value corresponding to the comfort mode Vcom0, and the voltage signal value corresponding to the target driving mode Vcomy.
Wherein the value of y may be the number of driving modes set between the sport mode and the comfort mode in actual use.
And step 72, determining a second interpolation proportion of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the motion mode and the voltage signal value corresponding to the comfort mode.
Wherein the second interpolation ratio is used to indicate a voltage ratio of the target driving mode between the sport mode and the comfort mode.
In this step, the voltage signal value corresponding to the sport mode and the voltage signal value corresponding to the comfort mode may be used as two ends of the increasing linear relationship, and according to the voltage signal value corresponding to the target driving mode, the voltage ratio of the target driving mode between the sport mode and the comfort mode may be obtained, that is, the second interpolation ratio.
In one possible implementation, the second interpolation ratio Rc (unit:%) is calculated as follows:
Rc＝(Vcomy-Vcom0)/(Vspo-Vcom0)*100％
and 73, determining a target torque corresponding to the target driving mode according to the second interpolation proportion, the output torque corresponding to the motion mode under the opening degree of the accelerator pedal and the output torque corresponding to the comfortable mode under the opening degree of the accelerator pedal.
In this step, the output torque corresponding to the movement mode under the opening degree of the accelerator pedal and the output torque corresponding to the comfort mode under the opening degree of the accelerator pedal can be determined by using the pedal pulse spectrum, and based on the output torque, the target torque corresponding to the target driving mode is obtained between the two output torques according to the second interpolation ratio.
In one possible implementation, the target torque Tcy (unit: NM) corresponding to the target driving mode is calculated as follows:
Tcy＝Tc0+Rc*(Ts-Tc0)
the output torque corresponding to the motion mode under the opening degree of the accelerator pedal is Ts, and the output torque Tc0 corresponding to the comfort mode under the opening degree of the accelerator pedal is Tc.
The control method of the vehicle provided by the embodiment of the application determines a second interpolation proportion of the target driving mode by acquiring a voltage signal value corresponding to the target driving mode, a voltage signal value corresponding to the motion mode and a voltage signal value corresponding to the comfort mode, and according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the motion mode and the voltage signal value corresponding to the comfort mode, and then determines a target torque corresponding to the target driving mode according to the second interpolation proportion, an output torque corresponding to the motion mode at the opening degree of an accelerator pedal and an output torque corresponding to the comfort mode at the opening degree of the accelerator pedal, so that the vehicle can operate between the motion mode and the comfort mode according to the driving habits of the user when the target driving mode is specifically the driving mode corresponding to the knob at any position selected between the knob of the motion mode and the knob of the comfort mode by the user, the driving style preference of the user is satisfied.
On the basis of the foregoing embodiment, fig. 8 is a schematic flowchart of a fourth embodiment of a control method for a vehicle according to an embodiment of the present application. As shown in fig. 8, the step 42 is implemented as follows:
and 81, acquiring a voltage signal value corresponding to the target driving mode, a voltage signal value corresponding to the motion mode and a voltage signal value corresponding to the economic mode.
In this step, the knob of the target driving mode is located between the knob of the economy mode and the knob of the sport mode, i.e., 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 sport mode.
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 sport mode can further determine the voltage ratio of the target driving mode between the economy mode and the sport mode.
In one possible implementation, the sport mode corresponds to a voltage signal value of Vspo, the economy mode corresponds to a voltage signal value of Veco0, and the target driving mode corresponds to a voltage signal value of Vspoz.
Wherein the value of z may be the number of driving modes set between the economy mode and the sport mode in actual use.
And step 82, determining a third interpolation proportion of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the motion mode and the voltage signal value corresponding to the economy mode.
Wherein the third interpolation ratio is indicative of a voltage ratio of the target driving mode between the sport mode and the economy mode.
In this step, the voltage signal value corresponding to the economy mode and the voltage signal value corresponding to the sport mode may be used as two ends of the increasing linear relationship, and according to the voltage signal value corresponding to the target driving mode, the voltage ratio between the economy mode and the comfort mode in the target driving mode may be obtained, that is, the third interpolation ratio.
In one possible implementation, the third interpolation ratio Rs (unit:%) is calculated as follows:
Rs＝(Vspoz-Veco0)/(Vspo-Veco0)*100％
and step 83, determining a target torque corresponding to the target driving mode according to the third interpolation ratio, the output torque corresponding to the motion mode under the opening degree of the accelerator pedal and the output torque corresponding to the economy mode under the opening degree of the accelerator pedal.
In this step, the output torque corresponding to the economy mode at the opening degree of the accelerator pedal and the output torque corresponding to the sport mode at the opening degree of the accelerator pedal can be determined by using the pedal pulse spectrum, and based on the output torque, the target torque corresponding to the target driving mode is obtained between the two output torques according to the first interpolation ratio.
In one possible implementation, the target torque Tez (in NM) for the target driving mode is calculated as follows:
Tez＝Te0+Rs*(Ts-Te0)
the output torque corresponding to the economy mode under the opening degree of the accelerator pedal is Te0, and the output torque corresponding to the sport mode under the opening degree of the accelerator pedal is Ts.
According to the control method of the vehicle, a voltage signal value corresponding to a target driving mode, a voltage signal value corresponding to a movement mode and a voltage signal value corresponding to an economy mode are obtained, a third interpolation proportion of the target driving mode is determined according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the movement mode and the voltage signal value corresponding to the economy mode, and then a target torque corresponding to the target driving mode is determined according to the third interpolation proportion, an output torque corresponding to the movement mode under the opening degree of an accelerator pedal and an output torque corresponding to the economy mode under the opening degree of the accelerator pedal. In the mode, when the target driving mode is specifically the driving mode corresponding to the knob at any position selected by the user between the knob in the motion mode and the knob in the economy mode, the vehicle can run between the motion mode and the economy mode according to the driving habits of the user, and the driving style preference of the user is met.
On the basis of the above method embodiment, fig. 9 is a schematic structural diagram of a control device of a vehicle according to an embodiment of the present application. As shown in fig. 9, the control device of a vehicle applied to a power control unit ECU of the vehicle includes:
the acquiring module 91 is used for acquiring the opening degree of an accelerator pedal of a vehicle;
the determining module 92 is used for determining a target torque corresponding to a target driving mode according to the opening degree of an accelerator pedal and the target driving mode selected by a user, wherein the target driving mode is the driving mode corresponding to a knob at any position selected by the user between a knob in an economy mode and a knob in a motion mode, and the target torque is determined according to a voltage signal value indicated by the knob corresponding to the target driving mode;
and a control module 93 for controlling the vehicle to operate at the target torque.
In one possible design of the embodiment of the application, the target driving mode is specifically a driving mode corresponding to a knob at any position selected by a user between a knob in the economy mode and a knob in the comfort mode;
correspondingly, the determining module 92 determines a target torque corresponding to the target driving mode according to the accelerator pedal opening and the target driving mode selected by the user, and is specifically configured to:
acquiring a voltage signal value corresponding to a target driving mode, a voltage signal value corresponding to an economic mode and a voltage signal value corresponding to a comfortable mode;
determining a first interpolation proportion 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, wherein the first interpolation proportion is used for indicating the voltage ratio of the target driving mode between the economy mode and the comfort mode;
and determining a target torque corresponding to a target driving mode according to the first interpolation proportion, the output torque corresponding to the economic mode under the opening degree of the accelerator pedal and the output torque corresponding to the comfortable mode under the opening degree of the accelerator pedal.
In yet another possible design of the embodiment of the present application, the target driving mode is specifically a driving mode corresponding to a knob at any position selected by a user between a motion mode knob and a comfort mode knob;
correspondingly, the determining module 92 determines a target torque corresponding to the target driving mode according to the accelerator pedal opening and the target driving mode selected by the user, and is specifically configured to:
acquiring a voltage signal value corresponding to a target driving mode, a voltage signal value corresponding to a motion mode and a voltage signal value corresponding to a comfort mode;
determining a second interpolation proportion of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the movement mode and the voltage signal value corresponding to the comfort mode, wherein the second interpolation proportion is used for indicating the voltage ratio of the target driving mode between the movement mode and the comfort mode;
and determining a target torque corresponding to a target driving mode according to the second interpolation proportion, the output torque corresponding to the motion mode under the opening degree of the accelerator pedal and the output torque corresponding to the comfortable mode under the opening degree of the accelerator pedal.
In yet another possible design of the embodiment of the present application, the determining module 92 determines, according to the accelerator pedal opening and a target driving mode selected by a user, a target torque corresponding to the target driving mode, and is specifically configured to:
acquiring a voltage signal value corresponding to a target driving mode, a voltage signal value corresponding to a motion mode and a voltage signal value corresponding to an economic mode;
determining a third interpolation proportion of the target driving mode according to the voltage signal value corresponding to the target driving mode, the voltage signal value corresponding to the movement mode and the voltage signal value corresponding to the economy mode, wherein the third interpolation proportion is used for indicating the voltage ratio of the target driving mode between the movement mode and the economy mode;
and determining a target torque corresponding to a target driving mode according to the third interpolation proportion, the output torque corresponding to the motion mode under the opening degree of the accelerator pedal and the output torque corresponding to the economy mode under the opening degree of the accelerator pedal.
Optionally, the obtaining module 91 obtains an accelerator pedal opening of the vehicle, and is specifically configured to:
acquiring a displacement value of an accelerator pedal of a vehicle, wherein the displacement value is the falling distance of the accelerator pedal;
and determining the accelerator pedal opening of the accelerator pedal according to the displacement value.
The control device of the vehicle provided by the embodiment of the application can be used for executing the technical scheme corresponding to the control method of the vehicle in the embodiment, the implementation principle and the technical effect are similar, and the detailed description is omitted.
It should be noted that the division of the modules of the above apparatus is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.
Fig. 10 is a schematic structural diagram of an ECU provided in an embodiment of the present application. As shown in fig. 10, the ECU may include: a processor 100, a memory 101, and computer program instructions stored on the memory 101 and operable on the processor 100.
Processor 100 executes computer-executable instructions stored by memory 101 to cause processor 100 to perform aspects of the embodiments described above. The processor 100 may be a general-purpose processor including a central processing unit CPU, a Network Processor (NP), and the like; but also a digital signal processor DSP, an application specific integrated circuit ASIC, a field programmable gate array FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components.
Optionally, the ECU may further include: a transceiver 102.
Memory 101 and transceiver 102 are coupled to processor 100 via a system bus and communicate with each other, and memory 101 is used to store computer program instructions.
The transceiver 102 is used for communication with other devices, the transceiver 102 constituting a communication interface.
Optionally, in terms of hardware implementation, the obtaining module 91 in the embodiment shown in fig. 9 corresponds to the transceiver 102 in this embodiment.
The system bus may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The system bus may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.
The ECU provided in the embodiment of the present application may be used to execute the technical solutions corresponding to the control methods of the vehicle in the embodiments described above, and the implementation principles and technical effects thereof are similar and will not be described herein again.
The embodiment of the application also provides a chip for operating the instructions, and the chip is used for executing the technical scheme of the control method of the vehicle in the embodiment.
The embodiment of the present application further provides a computer-readable storage medium, where a computer instruction is stored in the computer-readable storage medium, and when the computer instruction runs on an ECU, the ECU is enabled to execute the technical solution of the control method of the vehicle in the foregoing embodiment.
The embodiment of the present application further provides a computer program product, which includes a computer program, and the computer program is used for executing the technical solution of the control method of the vehicle in the above embodiment when being executed by a processor.
The computer-readable storage medium described above may be implemented by any type of volatile or non-volatile memory device or 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 or optical disk. The readable storage medium may be any available medium that can be accessed by a general purpose or special purpose ECU.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. A control method of a vehicle, characterized by being applied to a power control unit ECU of the vehicle, the method comprising:
acquiring the opening degree of an accelerator pedal of the vehicle;
determining a target torque corresponding to a target driving mode according to the opening degree of the accelerator pedal and the target driving mode selected by a user, wherein the target driving mode is the driving mode corresponding to a knob at any position selected by the user between a knob in an economy mode and a knob in a motion mode, and the target torque is determined according to a voltage signal value indicated by the knob corresponding to the target driving mode;
and controlling the vehicle to operate according to the target torque.
2. The method according to claim 1, characterized in that the target driving mode is in particular the driving mode corresponding to the knob of 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 accelerator pedal opening and the target driving mode selected by the user includes:
acquiring a voltage signal value corresponding to the target driving mode, a voltage signal value corresponding to the economy mode and a voltage signal value corresponding to the comfort mode;
determining a first interpolation proportion 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, wherein the first interpolation proportion is used for indicating the voltage ratio of the target driving mode between the economy mode and the comfort mode;
and determining a target torque corresponding to the target driving mode according to the first interpolation proportion, the output torque corresponding to the economy mode under the opening degree of the accelerator pedal and the output torque corresponding to the comfort mode under the opening degree of the accelerator pedal.
3. The method according to claim 1, characterized in that the target driving mode is in particular the driving mode corresponding to a knob of any position selected by the user between the sport mode knob and comfort mode knob;
correspondingly, the 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 includes:
acquiring a voltage signal value corresponding to the target driving mode, a voltage signal value corresponding to the motion mode and a voltage signal value corresponding to the comfort mode;
determining a second interpolation proportion 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, wherein the second interpolation proportion is used for indicating the voltage ratio of the target driving mode between the sport mode and the comfort mode;
and determining a target torque corresponding to the target driving mode according to the second interpolation proportion, the output torque corresponding to the motion mode under the opening degree of the accelerator pedal and the output torque corresponding to the comfortable mode under the opening degree of the accelerator pedal.
4. The method of claim 1, wherein determining a target torque corresponding to the target driving mode according to the accelerator pedal opening and a target driving mode selected by a user comprises:
acquiring a voltage signal value corresponding to the target driving mode, a voltage signal value corresponding to the motion mode and a voltage signal value corresponding to the economy mode;
determining a third interpolation proportion 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, wherein the third interpolation proportion is used for indicating the voltage ratio of the target driving mode between the sport mode and the economy mode;
and determining a target torque corresponding to the target driving mode according to the third interpolation proportion, the output torque corresponding to the motion mode under the opening degree of the accelerator pedal and the output torque corresponding to the economy mode under the opening degree of the accelerator pedal.
5. The method according to any one of claims 1-4, wherein said obtaining an accelerator pedal opening of said vehicle comprises:
acquiring a displacement value of an accelerator pedal of the vehicle, wherein the displacement value is the falling distance of the accelerator pedal;
and determining the accelerator pedal opening degree of the accelerator pedal according to the displacement value.
6. A control apparatus of a vehicle, characterized by being applied to a power control unit ECU of the vehicle, the apparatus comprising:
the acquisition module is used for acquiring the opening degree of an accelerator pedal of the vehicle;
the determining module is used for determining a target torque corresponding to a target driving mode according to the opening degree of the accelerator pedal and the target driving mode selected by a user, wherein the target driving mode is the driving mode corresponding to a knob at any position selected by the user between a knob in an economy mode and a knob in a motion mode, and the target torque is determined according to a voltage signal value indicated by the knob corresponding to the target driving mode;
and the control module is used for controlling the vehicle to operate according to the target torque.
7. The device according to claim 6, characterized in that the target driving mode is a driving mode corresponding to a 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:
acquiring a voltage signal value corresponding to the target driving mode, a voltage signal value corresponding to the economy mode and a voltage signal value corresponding to the comfort mode;
determining a first interpolation proportion 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, wherein the first interpolation proportion is used for indicating the voltage ratio of the target driving mode between the economy mode and the comfort mode;
and determining a target torque corresponding to the target driving mode according to the first interpolation proportion, the output torque corresponding to the economy mode and the output torque corresponding to the comfort mode.
8. An ECU, comprising: a processor, a memory and computer program instructions stored on and executable on the processor, wherein the processor implements a method of controlling a vehicle as claimed in any one of claims 1 to 5 when executing the computer program instructions.
9. A computer-readable storage medium having stored thereon computer-executable instructions for implementing a control method of a vehicle according to any one of claims 1 to 5 when executed by a processor.
10. A computer program product comprising a computer program for implementing a control method of a vehicle according to any one of the preceding claims 1 to 5 when the computer program is executed by a processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210582783.3A CN114802062A (en) | 2022-05-26 | 2022-05-26 | Vehicle control method, device, ECU and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210582783.3A CN114802062A (en) | 2022-05-26 | 2022-05-26 | Vehicle control method, device, ECU and storage medium |
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| CN114802062A true CN114802062A (en) | 2022-07-29 |
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| CN202210582783.3A Pending CN114802062A (en) | 2022-05-26 | 2022-05-26 | Vehicle control method, device, ECU and storage medium |
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| Country | Link |
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| CN (1) | CN114802062A (en) |
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2022
- 2022-05-26 CN CN202210582783.3A patent/CN114802062A/en active Pending
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