CN112208348B - Torque control method and device, storage medium and vehicle-mounted terminal - Google Patents
Torque control method and device, storage medium and vehicle-mounted terminal Download PDFInfo
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- CN112208348B CN112208348B CN201910621046.8A CN201910621046A CN112208348B CN 112208348 B CN112208348 B CN 112208348B CN 201910621046 A CN201910621046 A CN 201910621046A CN 112208348 B CN112208348 B CN 112208348B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/44—Drive Train control parameters related to combustion engines
- B60L2240/443—Torque
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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Abstract
The disclosure provides a torque control method and device, a storage medium and a vehicle-mounted terminal, and relates to the field of vehicle running control. When the difference value between the current actual operation torque and the target torque is larger than a preset threshold value, adjusting the current actual operation torque to a transition torque according to a set unit adjustment step length; then controlling the engine to switch from the current actual operation torque to the transition torque operation and maintaining the set duration; and finally, the current actual operation torque of the engine and the current target torque related to the opening and closing degree of the throttle valve are obtained again until the difference value between the current actual operation torque of the engine and the target torque is smaller than a preset threshold value, so that the operation state of the engine is controlled to gradually transit from the current actual operation torque to the target torque, the vibration and the pause and contusion during driving are reduced, excessive abrasion cannot be caused to the engine, the service life of the engine is prolonged, and the driving safety is improved.
Description
Technical Field
The disclosure relates to the field of vehicle running control, in particular to a torque control method and device, a storage medium and a vehicle-mounted terminal.
Background
The cruise control function of a vehicle is to automatically maintain a vehicle speed without stepping on an accelerator pedal after a switch is turned on at a speed requested by a driver, so that the vehicle travels at a constant speed. After the vehicle runs on the highway for a long time, a driver does not need to control the accelerator pedal any more, so that the fatigue is reduced, unnecessary vehicle speed change is reduced, and the fuel can be saved.
In the prior art, when a driver finishes a constant-speed cruising function, the torque of an engine of the constant-speed cruising function is inconsistent with the torque corresponding to the opening and closing degree of an accelerator stepped by the driver, so that the torque of the engine changes suddenly, the vehicle shakes suddenly and is hindered, the service life of the engine of the vehicle is shortened, and the driving safety of the whole vehicle is reduced.
Disclosure of Invention
The purpose of the present disclosure is to provide a torque control method, a torque control device, a storage medium, and a vehicle-mounted terminal, so as to solve the problems that the torque of an engine suddenly changes, so that the vehicle shakes with a jerky feeling, and the service life of the vehicle engine is reduced.
In order to achieve the above object, there is provided according to a first aspect of the present disclosure a torque control method including:
acquiring a current actual operation torque of the engine and a target torque associated with a current opening and closing degree of an accelerator in response to a closing command for a vehicle cruising function;
determining a difference between the current actual operating torque and the target torque;
when the difference value between the current actual operation torque and the target torque is larger than a preset threshold value, adjusting the current actual operation torque to a transition torque according to a set unit adjustment step length, wherein the difference value between the transition torque and the target torque is smaller than the difference value between the current actual operation torque and the target torque;
controlling the engine to switch from the current actual operation torque to the transition torque operation and maintaining the set duration;
and re-acquiring the current actual operation torque of the engine and the target torque related to the current opening and closing degree of the throttle valve until the difference value of the current actual operation torque of the engine and the target torque is smaller than a preset threshold value.
Optionally, the obtaining the current actual operation torque of the engine and the target torque associated with the current opening degree of the throttle valve comprises:
the method comprises the steps of receiving the current actual running torque of an engine transmitted by a torque sensor and the accelerator opening value transmitted by an accelerator pedal position sensor, and searching a target torque related to the accelerator opening value according to a preset torque lookup table.
Optionally, when the difference between the current actual operating torque and the target torque is greater than a preset threshold, before the current actual operating torque is adjusted to the transition torque according to a set unit adjustment step length, the method includes:
and setting the unit adjustment step length and the time length according to the difference.
Optionally, the method further comprises:
when the difference value between the transition torque and the target torque is larger than the difference value between the current actual operation torque and the target torque, generating a fault prompt;
and outputting the fault prompt to a display module for display.
According to a second aspect of the present disclosure, there is provided a torque control device, the device comprising:
an information acquisition module configured to acquire a current actual operating torque of the engine and a target torque associated with a current opening degree of the throttle in response to a turn-off command for a vehicle cruise function;
a difference determination module configured to determine a difference between the current actual operating torque and the target torque;
a torque adjusting module configured to adjust the current actual operating torque to a transition torque according to a set unit adjustment step length when a difference between the current actual operating torque and the target torque is greater than a preset threshold, wherein the difference between the transition torque and the target torque is smaller than the difference between the current actual operating torque and the target torque;
an operating state control module configured to control the engine to switch from a current actual operating torque to the transition torque operation for a set period of time;
the information acquisition module is further configured to reacquire the current actual operating torque of the engine and the target torque associated with the current opening degree of the throttle until the difference between the current actual operating torque of the engine and the target torque is less than a preset threshold value.
Optionally, the information obtaining module includes:
the information receiving submodule is configured to receive the current actual running torque of the engine transmitted by the torque sensor and the accelerator opening value transmitted by the accelerator pedal position sensor;
and the information query submodule is configured to look up a target torque related to the throttle opening value according to a preset torque query table.
Optionally, the apparatus comprises:
and the parameter setting module is configured to set the unit adjustment step length and the time length according to the difference value.
Optionally, the apparatus further comprises:
a fault indication generation module configured to generate a fault indication when a difference between the transition torque and the target torque is greater than a difference between the current actual operating torque and the target torque;
and the information output module is configured to output the fault prompt to the display module for display.
According to a third aspect of the present disclosure, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method of the first aspect of the present disclosure.
According to a fourth aspect of the present disclosure, there is provided an in-vehicle terminal including:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to implement the steps of any of the above methods.
According to the torque control method, the torque control device, the storage medium and the vehicle-mounted terminal, when the difference value between the current actual operation torque and the target torque is larger than a preset threshold value, the current actual operation torque is adjusted to the transition torque according to a set unit adjustment step length; then controlling the engine to switch from the current actual operation torque to the transition torque operation and maintaining the set duration; and finally, the current actual operation torque of the engine and the current target torque related to the opening and closing degree of the throttle valve are obtained again until the difference value between the current actual operation torque of the engine and the target torque is smaller than a preset threshold value, so that the operation state of the engine is controlled to gradually transit from the current actual operation torque to the target torque, the vibration and the pause and contusion during driving are reduced, excessive abrasion cannot be caused to the engine, the service life of the engine is prolonged, and the driving safety is improved.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a flow chart of a torque control method of one implementation provided by an embodiment of the present disclosure;
FIG. 2 is a block diagram of circuit block connections for a torque control system provided by an embodiment of the present disclosure;
FIG. 3 is a flow chart of a torque control method of another embodiment provided by an embodiment of the present disclosure;
FIG. 4 is a flow chart of a torque control method of another embodiment provided by an embodiment of the present disclosure;
FIG. 5 is a functional block diagram of a torque control device according to one embodiment of the present disclosure;
FIG. 6 is a functional block diagram of a torque control device according to another embodiment provided by an embodiment of the present disclosure;
FIG. 7 is a functional block diagram of a torque control device according to another embodiment provided by an embodiment of the present disclosure;
FIG. 8 is a functional block diagram of a torque control device according to another embodiment provided by an embodiment of the present disclosure;
fig. 9 is a circuit module connection block diagram of the vehicle-mounted terminal provided in the embodiment of the present disclosure.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
The embodiment of the disclosure provides a torque Control method, which is applied to a Vehicle Control Unit (VCU), and the VCU can Control an engine of a Vehicle to output a specified torque and a specified rotating speed by receiving a Vehicle running Control instruction, so as to drive the Vehicle to run. As shown in fig. 1, the method comprises:
s11: the current actual operating torque of the engine and the target torque associated with the current throttle opening degree are acquired in response to a shut-off command for a vehicle cruise function.
For example, when the vehicle is in the cruise function mode and the cruise shutdown switch is pressed by the driver, the cruise shutdown switch issues a shutdown command for the vehicle cruise function (for example, the signal is switched from a high level signal to a low level signal) and transmits the command to the VCU, and the VCU responds to the shutdown command for the vehicle cruise function. The current actual operating torque of the engine is the operating torque when the engine is running immediately before the closing command of the vehicle cruise function is received (i.e., the engine torque in the cruise function mode is followed by the vehicle, and there is no correlation between the engine torque and the accelerator opening/closing degree). When the vehicle exits the cruise function mode in response to a shut-down command for the vehicle cruise function, the torque of the engine is correlated with the accelerator opening/closing degree.
Specifically, as shown in fig. 2, the VCU901 is applied to a torque control system, which further includes a torque sensor 201 and an accelerator pedal position sensor 202. The way to obtain the current actual operating torque of the engine 204 and the target torque associated with the current throttle opening degree may be: and receiving the current actual operation torque of the engine 204 transmitted by the torque sensor 201 and the accelerator opening value transmitted by the accelerator pedal position sensor 202, and searching a target torque related to the accelerator opening value according to a preset torque lookup table.
It is understood that the torque sensor 201 and the accelerator pedal position sensor 202 are respectively connected to the VCU901 in communication (in this case, the torque sensor 201 is provided independently). Among other things, the torque sensor 201 may sense torsional moments on various rotating or non-rotating mechanical components (e.g., the engine 204) and convert physical changes in torque to electrical signals. The accelerator pedal position sensor 202 is configured to detect the opening degree of the accelerator pedal depressed by the driver, and convert information of the detected opening degree of the accelerator pedal depressed into an electric signal.
S12: and determining the difference value of the current actual operation torque and the target torque.
For example, if the current operating torque is 250N/m and the target torque is 300N/m, the difference between the current actual operating torque and the target torque is 50N/m.
S13: and judging whether the difference value between the current actual operation torque and the target torque is larger than a preset threshold value, and if so, executing S14.
S14: and adjusting the current actual operation torque to the transition torque according to the set unit adjustment step length.
Wherein, the set threshold value can be 0N/m, 1N/m, 2N/m, etc., and the set unit adjustment step size is preferably smaller than the set threshold value. And the difference value of the transition torque and the target torque is smaller than the difference value of the current actual operation torque and the target torque. For example, if the current operating torque is 250N/m, the target torque is 300N/m, and the set unit adjustment step size is 10N/m, the transient torque is 260N/m.
S15: the engine 204 is controlled to switch from the current actual operating torque to the transition torque operation for a set period of time.
For example, if the engine 204 is switched from 250N/m to 260N/m and maintained for 500ms, the magnitude of the torque change is small due to the switching of the engine 204 from 250N/m to 260N/m, and thus, the driver does not feel a jolt or a jerk. The torque control system may also include a MCU203, with the MCU203 communicatively coupled with the engine 204. The manner for controlling the engine 204 to switch from the current actual operating torque to the transition torque operation and maintain the set time period may be: the VCU901 sends a control command to the MCU203, and after the MCU203 receives the control command, the engine 204 is controlled to switch from the current actual operating torque to the transient torque operation and maintain the set duration. It should be noted that the torque sensor 201 and the MCU203 may also be integrated into a chip module (not shown).
Returning to S11, the entire process ends until the difference between the current actual operating torque of the engine 204 and the target torque is smaller than the preset threshold value.
When the difference between the current actual operating torque of the engine 204 and the target torque is smaller than the preset threshold, it indicates that the current actual operating torque of the engine 204 is very close to the target torque, and at this time, after the current actual operating torque of the engine 204 is switched to the target torque, the driver does not feel a jolt or a jerk.
According to the torque control method provided by the embodiment of the disclosure, when the difference value between the current actual operation torque and the target torque is greater than the preset threshold value, the current actual operation torque is adjusted to the transition torque according to the set unit adjustment step length; then controlling the engine 204 to switch from the current actual operation torque to the transition torque operation and maintaining the set duration; finally, the current actual operation torque of the engine 204 and the current target torque related to the opening and closing degree of the throttle valve are obtained again until the difference value between the current actual operation torque of the engine 204 and the target torque is smaller than a preset threshold value, so that the operation state of the engine 204 is controlled to gradually transit from the current actual operation torque to the target torque, the vibration and the suspension feeling during driving are reduced, excessive abrasion on the engine 204 is avoided, the service life of the engine 204 is prolonged, and the driving safety is improved.
Optionally, as shown in fig. 3, before S13, the method includes:
s21: and setting the unit adjustment step length and the time length according to the difference.
Specifically, the unit adjustment step size may be set in positive correlation with the difference (i.e., the unit adjustment step size increases with an increase in the difference; decreases with a decrease in the difference), and the period may be set in negative correlation with the difference (i.e., the unit adjustment step size decreases with an increase in the difference; increases with a decrease in the difference).
When the difference is large, setting the unit adjustment step length to be relatively large, so that the time for switching the current torque to the target torque can be saved; when the difference is small, the unit adjustment step length is set to be relatively small, so that the driver's feeling of vibration and jerk when the current torque is switched to the transition torque can be reduced. For example, when the difference is 50N/m, the setting unit adjustment step size may be 10N/m; when the difference is 100N/m, the setting unit adjustment step size may be 20N/m.
When the difference is large, the set time length is relatively small, so that the time for switching the current torque to the target torque can be saved; when the difference is small, the period is set to be relatively large, so that it is possible to reduce the feeling of jarring and jerking of the driver when the current torque is switched to the transition torque. For example, when the difference is 50N/m, the set time period may be 2 s; when the difference is 100N/m, the set time period may be 1 s.
Optionally, after S15, as shown in fig. 4, the method further includes:
s31: and judging whether the difference value of the transition torque and the target torque is larger than the difference value of the current actual operation torque and the target torque, and if so, executing S32.
S32: and generating a fault prompt.
The generated fault prompt can be a text prompt of 'torque adjustment is in fault, please overhaul' and the like
S33: and outputting the fault prompt to a display module for display.
The display module can independently set, also can integrate in vehicle terminal, through output trouble suggestion to the display module demonstration to the driver can know the moment of torsion adjustment at the display module and break down, needs maintain.
Referring to fig. 5, the disclosed embodiment further provides a torque control device 500, wherein, with regard to the device in the disclosed embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be described in detail herein. The apparatus includes an information acquisition module 501, a difference determination module 502, a torque adjustment module 504, and an operating state control module 505.
The information acquisition module 501 is configured to acquire a current actual operating torque of the engine 204 and a target torque associated with a current throttle opening degree in response to a shut-off command for a vehicle cruise function.
The difference determination module 502 is configured to determine a difference between the current actual operating torque and the target torque.
The torque adjustment module 504 is configured to adjust the current actual operating torque to the transition torque according to a set unit adjustment step size when the difference between the current actual operating torque and the target torque is greater than a preset threshold.
Wherein a difference between the transition torque and the target torque is smaller than a difference between the current actual operating torque and the target torque.
The operating state control module 505 is configured to control the engine 204 to switch from the current actual operating torque to the transition torque operation for a set period of time.
The information obtaining module 501 is further configured to obtain the current actual operating torque of the engine 204 and the current target torque associated with the opening and closing degree of the throttle again until the difference between the current actual operating torque of the engine 204 and the target torque is smaller than a preset threshold value.
The torque control device 500 provided by the present disclosure adjusts the current actual operating torque to the transition torque according to the set unit adjustment step length when the difference between the current actual operating torque and the target torque is greater than the preset threshold; then controlling the engine 204 to switch from the current actual operation torque to the transition torque operation and maintaining the set duration; and finally, the current actual operation torque of the engine 204 and the current target torque related to the opening and closing degree of the throttle valve are obtained again until the difference value between the current actual operation torque of the engine 204 and the target torque is smaller than a preset threshold value, so that the operation state of the engine 204 is controlled to gradually transit from the current actual operation torque to the target torque, the vibration and the suspension feeling during driving are reduced, excessive abrasion of the engine 204 is avoided, the service life of the engine 204 is prolonged, and the driving safety is improved.
Optionally, as shown in fig. 6, the information obtaining module 501 includes:
and the information receiving submodule 601 is configured to receive the current actual operation torque of the engine 204 transmitted by the torque sensor 201 and the accelerator opening value transmitted by the accelerator pedal position sensor 202.
And the information query submodule 602 is configured to look up the target torque associated with the throttle opening value according to a preset torque query table.
Optionally, as shown in fig. 7, the apparatus further includes:
a parameter setting module 701 configured to set the unit adjustment step size and the duration according to the difference.
The parameter setting module 701 is specifically configured to set the unit adjustment step size according to a positive correlation with the difference value, and set the time length according to a negative correlation with the difference value.
Optionally, as shown in fig. 8, the apparatus further includes:
a fault indication generating module 801 configured to generate a fault indication when a difference between the transition torque and the target torque is greater than a difference between the current actual operating torque and the target torque;
and an information output module 802 configured to output the fault prompt to a display module for display.
Fig. 9 is a block diagram illustrating an in-vehicle terminal 900 according to an example embodiment. As shown in fig. 9, the in-vehicle terminal 900 may include: VCU901, memory 902. The in-vehicle terminal 900 may also include one or more of a multimedia component 903, an input/output (I/O) interface 904, and a communications component 905.
The VCU901 is used for controlling the overall operation of the vehicle-mounted terminal 900 to complete all or part of the steps of the torque control method. The memory 902 is used to store various types of data to support operation at the in-vehicle terminal 900, such as instructions for any application or method operating on the in-vehicle terminal 900, as well as application-related data, such as contact data, messaging, pictures, audio, video, and the like. The Memory 902 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 disk or optical disk. The multimedia component 903 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 902 or transmitted through the communication component 905. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 904 provides an interface between the VCU901 and other interface modules, such as a keyboard, mouse, buttons, and the like. These buttons may be virtual buttons or physical buttons. The communication component 905 is used for wired or wireless communication between the in-vehicle terminal 900 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, which is not limited herein. The corresponding communication component 905 may thus include: Wi-Fi module, Bluetooth module, NFC module, etc.
In an exemplary embodiment, the in-vehicle terminal 900 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal VCUs (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, or other electronic components for performing the torque control method described above.
In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by the VCU901, implement the steps of the torque control method described above is also provided. For example, the computer readable storage medium may be the memory 902 described above including program instructions executable by the VCU901 of the in-vehicle terminal 900 to perform the torque control method described above.
In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by the VCU, implement the steps of the torque control method described above is also provided. For example, the computer readable storage medium may be the memory 932 described above that includes program instructions executable by the VCU901 of the in-vehicle terminal 900 to perform the torque control method described above.
In another exemplary embodiment, a computer program product is also provided, which comprises a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-described torque control method when executed by the programmable apparatus.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A method of torque control, the method comprising:
acquiring a current actual operation torque of the engine and a target torque associated with a current opening and closing degree of an accelerator in response to a closing command for a vehicle cruising function;
determining a difference between the current actual operating torque and the target torque;
when the difference value between the current actual operation torque and the target torque is larger than a preset threshold value, adjusting the current actual operation torque to a transition torque according to a set unit adjustment step length and a set time length, wherein the unit adjustment step length and the set time length are set according to the difference value, and the difference value between the transition torque and the target torque is smaller than the difference value between the current actual operation torque and the target torque;
controlling the engine to switch from the current actual operation torque to the transition torque operation and maintaining the set duration;
and re-acquiring the current actual operation torque of the engine and the target torque related to the current opening and closing degree of the throttle valve until the difference value of the current actual operation torque of the engine and the target torque is smaller than a preset threshold value.
2. The method of claim 1, wherein the obtaining a current actual operating torque of the engine and a target torque associated with a current throttle opening degree comprises:
the method comprises the steps of receiving the current actual running torque of an engine transmitted by a torque sensor and the accelerator opening value transmitted by an accelerator pedal position sensor, and searching a target torque related to the accelerator opening value according to a preset torque lookup table.
3. The method of claim 1, wherein the setting the unit adjustment step size and the duration according to the difference comprises:
and setting the unit adjustment step length according to the positive correlation with the difference value, and setting the time length according to the negative correlation with the difference value.
4. The method of claim 1, further comprising:
when the difference value between the transition torque and the target torque is larger than the difference value between the current actual operation torque and the target torque, generating a fault prompt;
and outputting the fault prompt to a display module for display.
5. A torque control device, characterized in that the device comprises:
the information acquisition module is configured to respond to a closing instruction for a vehicle cruise function and acquire the current actual operation torque of the engine and a target torque related to the current opening degree of the throttle;
a difference determination module configured to determine a difference between the current actual operating torque and the target torque;
a torque adjusting module configured to adjust the current actual operating torque to a transition torque according to a set unit adjustment step length and a set unit adjustment time length when the difference between the current actual operating torque and the target torque is greater than a preset threshold, wherein the difference between the transition torque and the target torque is smaller than the difference between the current actual operating torque and the target torque;
an operating state control module configured to control the engine to switch from a current actual operating torque to the transition torque operation and maintain the set period of time;
the information acquisition module is further configured to reacquire a current actual operating torque of an engine and a current target torque associated with the opening and closing degree of an accelerator until a difference between the current actual operating torque of the engine and the target torque is less than a preset threshold;
and the parameter setting module is configured to set the unit adjustment step length and the time length according to the difference value.
6. The apparatus of claim 5, wherein the information obtaining module comprises:
the information receiving submodule is configured to receive the current actual running torque of the engine transmitted by the torque sensor and the accelerator opening value transmitted by the accelerator pedal position sensor;
and the information query submodule is configured to look up a target torque related to the throttle opening value according to a preset torque query table.
7. The apparatus of claim 5, wherein the parameter setting module is specifically configured to set the unit adjustment step size in a positive correlation with the difference, and to set the duration in a negative correlation with the difference.
8. The apparatus of claim 5, further comprising:
a fault indication generation module configured to generate a fault indication when a difference between the transition torque and the target torque is greater than a difference between the current actual operating torque and the target torque;
and the information output module is configured to output the fault prompt to the display module for display.
9. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.
10. A vehicle-mounted terminal characterized by comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to carry out the steps of the method of any one of claims 1 to 4.
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| CN201910621046.8A CN112208348B (en) | 2019-07-10 | 2019-07-10 | Torque control method and device, storage medium and vehicle-mounted terminal |
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| CN201910621046.8A CN112208348B (en) | 2019-07-10 | 2019-07-10 | Torque control method and device, storage medium and vehicle-mounted terminal |
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