CN113232611A - Control method of vehicle, and computer-readable storage medium - Google Patents
Control method of vehicle, and computer-readable storage medium Download PDFInfo
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- CN113232611A CN113232611A CN202110564856.1A CN202110564856A CN113232611A CN 113232611 A CN113232611 A CN 113232611A CN 202110564856 A CN202110564856 A CN 202110564856A CN 113232611 A CN113232611 A CN 113232611A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 230000002159 abnormal effect Effects 0.000 claims abstract description 21
- 230000005856 abnormality Effects 0.000 claims description 8
- 238000004590 computer program Methods 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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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
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/50—Instruments characterised by their means of attachment to or integration in the vehicle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Indicating Measured Values (AREA)
Abstract
The application relates to the technical field of vehicle control, in particular to a control method of a vehicle, the vehicle and a computer readable storage medium, wherein the vehicle control method comprises the following steps: acquiring an engine speed of a vehicle, and acquiring a first preset threshold related to the engine speed; if the engine speed is greater than or equal to the first preset threshold, executing a preset detection rule to obtain a detection result, wherein the detection rule comprises judging whether at least one of a display speed of a combination instrument or a wheel speed is in a preset threshold range, the display speed of the combination instrument is the speed detected by a vehicle speed sensor, and the wheel speed is the speed detected by a wheel speed sensor; determining whether the vehicle speed sensor is abnormal or not according to the detection result; if yes, reducing the rotating speed of the engine and sending an alarm instruction of the abnormity of the vehicle speed sensor. The technical scheme of the application prevents the guarantee period of the vehicle from being prolonged, and guarantees the legal rights and interests of automobile manufacturing enterprises.
Description
Technical Field
The present application relates to the field of vehicle control technologies, and in particular, to a control method for a vehicle, and a computer-readable storage medium.
Background
At present, automobile manufacturers usually know the vehicle mileage of users through a vehicle speed sensor so as to determine the quality guarantee period of the vehicle, but when the vehicle speed sensor is abnormal, the automobile manufacturers cannot know the real vehicle mileage of the vehicle, so that the quality guarantee period of the vehicle is prolonged.
In the related art, an electrical fault diagnosis method is mostly adopted to determine whether a vehicle speed sensor is faulty or not.
Disclosure of Invention
In order to solve the problem that the quality guarantee period of a vehicle is prolonged due to the fact that a vehicle speed sensor is abnormal in the prior art, the application provides a control method of the vehicle, the vehicle and a computer readable storage medium.
According to an aspect of an embodiment of the present application, there is provided a vehicle control method including: acquiring an engine speed of a vehicle, and acquiring a first preset threshold related to the engine speed; if the engine speed is greater than or equal to the first preset threshold, executing a preset detection rule to obtain a detection result, wherein the detection rule comprises judging whether at least one of a display speed of a combination instrument or a wheel speed is in a preset threshold range, the display speed of the combination instrument is the speed detected by a vehicle speed sensor, and the wheel speed is the speed detected by a wheel speed sensor; determining whether the vehicle speed sensor is abnormal or not according to the detection result; if yes, reducing the rotating speed of the engine and sending an alarm instruction of the abnormity of the vehicle speed sensor.
In one embodiment, the first predetermined threshold is any one of 700 and 900r/min, preferably 800r/min, which is the number of revolutions per minute of the engine.
In one embodiment, the preset detection rules include: acquiring the display speed and the wheel speed of the combination instrument; judging whether the display speed of the combination meter is less than or equal to a second preset threshold value or not, and judging whether the wheel speed is greater than or equal to a third preset threshold value or not; and if the combination meter displays that the speed is less than or equal to a second preset threshold value and the wheel speed is greater than or equal to a third preset threshold value, determining that the vehicle speed sensor is abnormal.
In one embodiment, the second predetermined threshold is any value from 0 to 5km/h, the second predetermined threshold is preferably 0km/h, the third predetermined threshold is any value from 10 to 20km/h, the third predetermined threshold is preferably 10km/h, km/h being kilometers per hour.
In one embodiment, reducing engine speed includes issuing a torque limit command to the engine that is used to reduce a power output of the engine.
In one embodiment, the torque limit command is limited to 20-40% of the maximum torque, preferably to 30% of the maximum torque.
In one embodiment, after the warning command of abnormality of the vehicle speed sensor is issued, the vehicle control method further includes: when the engine speed is greater than or equal to the first preset threshold value, acquiring a display speed of a combination meter; if the combination meter display speed is greater than the second predetermined threshold and less than or equal to the fourth predetermined threshold, a torque limit command is issued to limit to 40-60% of the maximum torque; and if the display speed of the combination meter is greater than a fourth preset threshold value, a command for releasing the torque limit is sent out.
In one embodiment, the fourth predetermined threshold is any one of 6-10km/h, preferably 6 km/h.
According to another aspect of the embodiments of the present application, there is also provided a vehicle including:
a vehicle body control module for executing the vehicle control method of the present application;
an engine module including a rotational speed sensor for detecting a rotational speed of the engine;
the combination instrument module is used for displaying the speed detected by the vehicle speed sensor and displaying an alarm instruction sent by the vehicle body control module;
a wheel module including a wheel speed sensor for detecting a wheel speed.
According to an aspect of an embodiment of the present application, a computer-readable storage medium has stored thereon computer program instructions which, when executed by a processor, implement the vehicle control method in the above-described embodiment.
The technical scheme adopted by the application has the following beneficial effects:
when the vehicle speed sensor is detected to be abnormal, such as a fault or illegal pulling-out, the speed of the vehicle is controlled to limit the vehicle to continuously run, so that the guarantee period of the vehicle is prevented from being prolonged, and the legal rights and interests of an automobile production enterprise are guaranteed.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 shows a flow chart of a vehicle control method according to one embodiment of the present application;
FIG. 2 is a flow diagram for one embodiment of step S120 of FIG. 1;
FIG. 3 is a flowchart of a vehicle control method after issuing a warning command that the vehicle speed sensor is abnormal;
FIG. 4 shows a block diagram of a vehicle according to one embodiment of the present application.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the subject matter of the present application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the application.
The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.
The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
The implementation details of the technical solution of the embodiment of the present application are set forth in detail below:
fig. 1 shows a flow chart of a vehicle control method according to an embodiment of the present application, which may be specifically executed by a body control module of a vehicle, and referring to fig. 1, the vehicle control method includes at least steps S110 to S140, as described in detail below:
in step S110, an engine speed of the vehicle is obtained, and a first predetermined threshold related to the engine speed is obtained.
The first predetermined threshold is any one of 700-900r/min, preferably 800r/min, which is the number of revolutions per minute of the engine.
And step S120, if the engine speed is greater than or equal to a first preset threshold value, executing a preset detection rule to obtain a detection result.
And if the rotating speed of the engine is greater than or equal to the first preset threshold value, the vehicle belongs to the running state, and executing a preset detection rule, and if the rotating speed of the engine is less than the first preset threshold value, the vehicle does not belong to the running state, and the preset detection rule is not executed.
The preset detection rule includes determining whether at least one of a combination meter display speed, which is a speed detected by a vehicle speed sensor, or a wheel speed, which is a speed detected by a wheel speed sensor, is within a predetermined threshold range.
Specifically, the preset detection rule includes: acquiring the display speed and the wheel speed of the combination instrument; judging whether the display speed of the combination meter is less than or equal to a second preset threshold value or not, and judging whether the wheel speed is greater than or equal to a third preset threshold value or not; if the combination meter displays that the speed is less than or equal to the second predetermined threshold and the wheel speed is greater than or equal to the third predetermined threshold, it is determined that the vehicle speed sensor is abnormal.
Specifically, the second predetermined threshold is any value from 0 to 5km/h, the second predetermined threshold is preferably 0km/h, the third predetermined threshold is any value from 10 to 20km/h, the third predetermined threshold is preferably 10km/h, and km/h is kilometer per hour.
And step S130, determining whether the vehicle speed sensor is abnormal or not according to the detection result.
If the combination meter displays that the speed is less than or equal to the second predetermined threshold and the wheel speed is greater than or equal to the third predetermined threshold, it is determined that the vehicle speed sensor is abnormal. If the combination meter displays that the speed is greater than the second predetermined threshold or the wheel speed is less than the third predetermined threshold, the vehicle speed sensor is not abnormal. It should be noted that the vehicle speed sensor abnormality includes a vehicle speed sensor failure or a vehicle speed sensor being pulled out.
And step S140, if so, reducing the rotating speed of the engine and sending an alarm instruction of the abnormity of the vehicle speed sensor.
Reducing the engine speed includes issuing a torque limit command to the engine that reduces the power output of the engine, thereby reducing the vehicle speed. The torque limit command is limited to 20-40% of the maximum torque, preferably to 30% of the maximum torque. For example, the body control module issues a torque limit command to the engine to 30% of maximum torque, and in the next firing cycle, the engine will execute the torque limit command to 30% of maximum torque, and the vehicle will travel at a speed not exceeding 20 km/h.
There are various ways of giving an alarm instruction of abnormality of the vehicle speed sensor, for example, it may be a voice broadcast of abnormality of the vehicle speed sensor. The vehicle speed sensor can also be prompted to be abnormal by the combination meter in a text mode, such as the text prompt: "the vehicle speed sensor is abnormal, the vehicle running speed will be limited". The vehicle speed sensor can also be broadcasted by voice, and the combination instrument displays characters to prompt the abnormality of the vehicle speed sensor.
FIG. 2 is a flowchart of one embodiment of step S120 of FIG. 1. Please refer to fig. 2. In step S120, the preset detection rule may specifically include the following steps S121 to S126.
Step S121, if the engine speed is greater than or equal to a first preset threshold value, step S122 is executed, for example, if the engine speed is 3000r/min, the display speed of the combination meter is acquired;
step S122, acquiring the display speed of the combination instrument;
step S123, judging whether the display speed of the combination meter is less than or equal to a second preset threshold value, if the display speed of the combination meter is less than or equal to the second preset threshold value, executing step S124, for example, if the display speed of the combination meter is 0km/h, acquiring the wheel speed;
step S124, obtaining the wheel speed;
step S125, determining whether the wheel speed is greater than or equal to a third predetermined threshold, and if the wheel speed is greater than or equal to the third predetermined threshold, determining that the vehicle speed sensor is abnormal, for example, the wheel speed is 10km/h, determining that the vehicle speed sensor is abnormal.
And step S126, obtaining a detection result and determining that the vehicle speed sensor is abnormal.
Fig. 3 is a flowchart of a vehicle control method after an alarm command for abnormality of a vehicle speed sensor is issued, and as shown in fig. 3, in this embodiment, the vehicle control method specifically includes the steps of:
step S210, when the rotating speed of the engine is greater than or equal to a first preset threshold value, acquiring the display speed of the combination instrument;
step S220, judging whether the display speed of the combination meter is greater than a second preset threshold value and less than or equal to a fourth preset threshold value, and if the display speed of the combination meter is greater than the second preset threshold value and less than or equal to the fourth preset threshold value, executing step S221;
step S221, a torque limiting instruction is sent to limit the torque to 40-60% of the maximum torque;
step S230, determining whether the display speed of the combination meter is greater than a fourth predetermined threshold, and if the display speed of the combination meter is greater than the fourth predetermined threshold, executing step S231;
in step S231, a command to cancel the torque restriction is issued.
In an embodiment of the application, the fourth predetermined threshold is any one of 6-10km/h, preferably 6 km/h.
The following describes vehicle embodiments of the present application that may be used to implement the vehicle control methods of the above-described embodiments of the present application. For details that are not disclosed in the embodiments of the vehicle of the present application, please refer to the embodiments of the vehicle control method described above in the present application.
FIG. 4 illustrates a vehicle according to one embodiment of the present application. Referring to fig. 4, the vehicle of the present application includes:
the vehicle body control module S310 is configured to execute the vehicle control method of the present application, and specifically includes: the vehicle body control module acquires the rotating speed of an engine and a first preset threshold value related to the rotating speed of the engine and judges whether the rotating speed of the engine is greater than or equal to the first preset threshold value or not; if the rotating speed of the engine is greater than or equal to a first preset threshold value, the vehicle body control module executes a preset detection rule to obtain a detection result, wherein the detection rule comprises the step of judging whether at least one of the display speed of the combination instrument or the wheel speed is in a preset threshold value range; determining whether the vehicle speed sensor is abnormal or not according to the detection result; if so, the vehicle body control module sends a torque limiting instruction to the engine to reduce the rotating speed of the engine, and the vehicle body control module also sends an alarm instruction of the abnormity of the vehicle speed sensor.
The vehicle body control module S310 can also determine whether the vehicle speed sensor is abnormal, and specifically includes: determining that the vehicle speed sensor belongs to an abnormal state, acquiring the rotating speed of an engine by a vehicle body control module, and acquiring the display speed of the combination instrument if the rotating speed of the engine is greater than or equal to the first preset threshold; if the speed displayed by the combination instrument is larger than a second preset threshold value, the vehicle body control module sends a torque limiting instruction to the engine module to limit the torque to 40-60% of the maximum torque; and if the display speed of the combination instrument is greater than the fourth preset threshold value, determining that the abnormality of the vehicle speed sensor is eliminated, and sending a torque limitation removing instruction to the engine module by the vehicle body control module.
An engine module S320 including a speed sensor for detecting engine speed;
the combination instrument module S330 is used for displaying the speed detected by the vehicle speed sensor and displaying an alarm instruction sent by the vehicle body control module;
the wheel module S340 includes a wheel speed sensor for detecting a wheel speed.
The body control module S310, the engine module S320, the cluster module S330, and the wheel module S340 are connected by a bus S350.
According to another aspect of the embodiments of the present application, there is also provided a computer-readable storage medium having stored thereon computer program instructions, which when executed by a processor, implement the vehicle control method in the above embodiments, the computer-readable medium may be included in the vehicle described in the above embodiments; or may exist separately without being assembled into the electronic device. The computer readable medium carries one or more programs which, when executed by an electronic device, cause the electronic device to implement the method described in the above embodiments.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains.
It will be understood that the present application 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 application is limited only by the appended claims.
Claims (10)
1. A vehicle control method characterized by comprising:
acquiring an engine speed of a vehicle, and acquiring a first preset threshold related to the engine speed;
if the engine speed is greater than or equal to the first preset threshold, executing a preset detection rule to obtain a detection result, wherein the detection rule comprises judging whether at least one of a display speed of a combination instrument or a wheel speed is in a preset threshold range, the display speed of the combination instrument is the speed detected by a vehicle speed sensor, and the wheel speed is the speed detected by a wheel speed sensor;
determining whether the vehicle speed sensor is abnormal or not according to the detection result;
if yes, reducing the rotating speed of the engine and sending an alarm instruction of the abnormity of the vehicle speed sensor.
2. The vehicle control method according to claim 1, characterized in that the first predetermined threshold is any one of values 700-900 r/min.
3. The vehicle control method according to claim 1, characterized in that the preset detection rule includes:
acquiring the display speed and the wheel speed of the combination instrument;
judging whether the display speed of the combination meter is less than or equal to a second preset threshold value or not, and judging whether the wheel speed is greater than or equal to a third preset threshold value or not;
and if the combination meter displays that the speed is less than or equal to a second preset threshold value and the wheel speed is greater than or equal to a third preset threshold value, determining that the vehicle speed sensor is abnormal.
4. A vehicle control method according to claim 3, characterized in that the second predetermined threshold value is any one of 0-5km/h and the third predetermined threshold value is any one of 10-20 km/h.
5. The vehicle control method according to claim 1, wherein the reducing the engine speed includes issuing a torque limit command to the engine, the torque limit command being for reducing a power output of the engine.
6. The vehicle control method according to claim 5, characterized in that the torque limit command is limited to 20-40% of the maximum torque.
7. The vehicle control method according to claim 1, characterized in that after a warning command of abnormality of the vehicle speed sensor is issued, the method further comprises:
when the engine speed is greater than or equal to the first preset threshold value, acquiring a display speed of a combination meter;
if the combination meter display speed is greater than the second predetermined threshold and less than or equal to the fourth predetermined threshold, a torque limit command is issued to limit to 40-60% of the maximum torque;
and if the display speed of the combination meter is greater than a fourth preset threshold value, a command for releasing the torque limit is sent out.
8. The vehicle control method according to claim 7, characterized in that the fourth predetermined threshold value is any one of 6-10 km/h.
9. A vehicle, characterized by comprising:
a vehicle body control module for performing the vehicle control method of claims 1-8;
an engine module including a rotational speed sensor for detecting a rotational speed of the engine;
the combination instrument module is used for displaying the speed detected by the vehicle speed sensor and displaying an alarm instruction sent by the vehicle body control module;
a wheel module including a wheel speed sensor for detecting a wheel speed.
10. A computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the method of any of claims 1-8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110564856.1A CN113232611B (en) | 2021-05-24 | 2021-05-24 | Control method of vehicle, and computer-readable storage medium |
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| CN202110564856.1A CN113232611B (en) | 2021-05-24 | 2021-05-24 | Control method of vehicle, and computer-readable storage medium |
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| CN114148343A (en) * | 2021-12-23 | 2022-03-08 | 盛瑞传动股份有限公司 | Vehicle control method and device, electronic equipment and computer storage medium |
| CN114509279A (en) * | 2022-02-15 | 2022-05-17 | 一汽解放青岛汽车有限公司 | Vehicle speed limiting function detection system, method, computer device and storage medium |
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| CN114509279B (en) * | 2022-02-15 | 2024-03-19 | 一汽解放青岛汽车有限公司 | Vehicle speed limit function detection system, method, computer device, and storage medium |
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| CN113232611B (en) | 2023-02-24 |
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