CN117445885A - Control method, system, vehicle and medium for EPB caliper under unown fault state - Google Patents
Control method, system, vehicle and medium for EPB caliper under unown fault state Download PDFInfo
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- CN117445885A CN117445885A CN202311491456.8A CN202311491456A CN117445885A CN 117445885 A CN117445885 A CN 117445885A CN 202311491456 A CN202311491456 A CN 202311491456A CN 117445885 A CN117445885 A CN 117445885A
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- caliper
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000009471 action Effects 0.000 claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims abstract description 9
- 230000003068 static effect Effects 0.000 claims abstract description 8
- 238000004590 computer program Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a control method, a system, a vehicle and a medium under an unknown fault state of an EPB caliper, wherein the control method comprises the following steps: s1, monitoring whether an operator requests to clamp the EPB calipers, if so, executing a step S2, otherwise, executing a step S3: s2, judging whether the EPB calipers are in an unowned fault state, if the EPB calipers are in the unowned fault state, the EPB calipers do not act, and if the EPB calipers are in a non-unowned fault state, the EPB calipers are controlled to execute clamping actions; s3, further judging whether an operator requests to release the EPB calipers, if so, executing a step S4, otherwise, controlling the EPB calipers not to act: s4, judging whether the EPB calipers are in an unbown fault state, and if the EPB calipers are in a non-unbown fault state, controlling the EPB calipers to execute a release action; if the EPB caliper is in an unknown fault state, executing a step S5; s5, judging whether the vehicle is in a static state, and if the vehicle is in a non-static state, executing EPB caliper release action; if the vehicle is in a stationary state, an asemblycheck operation is performed.
Description
Technical Field
The invention belongs to the field of electronic parking control, and particularly relates to a control method, a control system, a vehicle and a storage medium of an EPB caliper in an unowned fault state.
Background
Compared with the traditional mechanical hand brake, the electronic parking brake (Electrical Park Brake, hereinafter referred to as EPB) function has the advantages of simple whole car arrangement, small space requirement, simple and convenient user operation and higher safety. With the continuous promotion of vehicle configuration, the function is increasingly and widely applied to vehicles.
At present, after the whole vehicle of a whole vehicle factory assembly workshop is taken off line, the initial state of the motor running position of the EPB calipers cannot be identified, namely the calipers are possibly in an unknown fault state. According to a given off-line detection flow, in the process of going to an EPB calibration station after the vehicle is off-line, an operator can operate an EPB switch to clamp/release a caliper, so that the occurrence of the motor bottom collision condition is caused; after the bottom collision, due to the limit design of the mechanical structure of the calipers, during EPB calibration, faults of overlarge internal resistance of the motor executed by the calipers can be generated, and the EPB calibration is failed. Vehicles with failed calibration enter a repair station for treatment, so that the production takt and vehicle delivery are greatly influenced.
Disclosure of Invention
In order to solve the common problem of failure of EPB calibration caused by motor bottom collision of an EPB caliper after the assembly workshop vehicle is off line in the prior art, the invention provides the control method under the failure state of the EPB caliper unknown, which greatly improves the off-line detection passing rate of the assembly workshop vehicle, saves the repair time and improves the production efficiency.
The invention aims at realizing the following technical scheme:
in a first aspect, the present invention provides a control method in an EPB caliper unknown fault condition, including the steps of:
s1, monitoring whether an operator requests to clamp the EPB calipers, if so, executing a step S2, otherwise, executing a step S3:
s2, judging whether the EPB calipers are in an unowned fault state, if the EPB calipers are in the unowned fault state, the EPB calipers do not act, and if the EPB calipers are in a non-unowned fault state, the EPB calipers are controlled to execute clamping actions;
s3, further judging whether an operator requests to release the EPB calipers, if so, executing a step S4, otherwise, controlling the EPB calipers not to act:
s4, judging whether the EPB calipers are in an unbown fault state, and if the EPB calipers are in a non-unbown fault state, controlling the EPB calipers to execute a release action; if the EPB caliper is in an unknown fault state, executing a step S5;
s5, judging whether the vehicle is in a static state, and if the vehicle is in a non-static state, executing EPB caliper release action; if the vehicle is in a stationary state, an asemblycheck operation is performed.
Further, in the step S1, it is determined whether the operator requests clamping of the EPB caliper by monitoring the action of the operator pulling up the EPB switch.
Further, in step S3, whether the operator has a request to release the EPB caliper is determined by monitoring whether the operator has an operation to depress the brake and press the EPB switch.
Further, in the step S5, the judgment condition that the vehicle is in the stationary state is: and if the vehicle speed signal is less than or equal to 0.4Kph, judging that the vehicle is in a stationary state.
Further, in the step S5, the asssembly check operation is as follows: the clamping of the EPB calipers is firstly carried out, and then the EPB calipers are controlled to be released to the correct position.
In a second aspect, a control system under an EPB caliper unknown fault condition is provided, and is configured to execute the control method according to the present invention, where the control system includes a control unit, a power supply, an EPB switch, a left rear EPB caliper assembly, and a right rear EPB caliper assembly; the power supply is electrically connected with the control unit; the EPB switch is in signal connection with the control unit; the control unit is in signal connection with the left rear EPB caliper assembly and the right rear EPB caliper assembly; the control unit judges a clamping or releasing request of an operator to the EPB caliper through the EPB switch signal, acquires an EPB caliper assembly signal and judges whether the EPB caliper is in an unowned fault state or not; and controlling the clamping or releasing of the EPB calipers according to the operator request and the unown fault state of the EPB calipers.
In a third aspect, a vehicle is provided that uses a control method in an EPB caliper unknown fault condition according to the present invention.
In a fourth aspect, a computer readable storage medium is provided, on which a computer program is stored, which program, when being executed by a processor, implements a control method in an EPB caliper unknown fault state according to the present invention.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings to be used in the description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the contents of the embodiments of the present invention and these drawings without inventive effort for those skilled in the art.
FIG. 1 is a flow chart of a control method in an unknown fault state of an EPB caliper according to embodiment 1 of the present invention;
fig. 2 is a schematic block diagram of a control system in an EPB caliper unknown fault state according to embodiment 2 of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1, the present embodiment is a control method in an EPB caliper unknown fault state, including the following steps:
s1, monitoring whether an operator requests to clamp the EPB calipers, if so, executing a step S2, otherwise, executing a step S3:
the control unit monitors the action of pulling up the EPB switch by an operator, namely whether the operator has a request for clamping the EPB caliper or not; if the operator requests to clamp the EPB caliper, executing a step S2, otherwise executing a step S3;
s2, judging whether the EPB calipers are in an unowned fault state, if the EPB calipers are in the unowned fault state, the EPB calipers do not act, and if the EPB calipers are in a non-unowned fault state, the EPB calipers are controlled to execute clamping actions;
s3, further judging whether an operator requests to release the EPB calipers, if so, executing a step S4, otherwise, controlling the EPB calipers not to act:
the control unit judges whether the operator has a request for releasing the EPB calipers or not by monitoring whether the operator steps on the brake and presses the EPB switch or not; if the operator does not request release of the EPB caliper, the EPB caliper is not actuated; if the operator requests release, step S4 is performed;
s4, judging whether the EPB calipers are in an unbown fault state, and if the EPB calipers are in a non-unbown fault state, controlling the EPB calipers to execute a release action; if the EPB caliper is in an unknown fault state, executing a step S5;
s5, judging whether the vehicle is in a static state, and if the vehicle is in a non-static state, executing EPB caliper release action; if the vehicle is in a stationary state, an asemblycheck operation is performed.
In the step S5, the judgment conditions for the stationary state of the vehicle are as follows: and if the vehicle speed signal is less than or equal to 0.4Kph, judging that the vehicle is in a stationary state.
The asemblycheck operation is as follows: the clamping of the EPB calipers is firstly carried out, and then the EPB calipers are controlled to be released to the correct position.
Example 2
As shown in fig. 2, the present embodiment is a control system in an EPB caliper unknown fault state, including a control unit, a power supply, an EPB switch, a left rear EPB caliper assembly, and a right rear EPB caliper assembly; the power supply is electrically connected with the control unit; the EPB switch is in signal connection with the control unit; the control unit is in signal connection with the left rear EPB caliper assembly and the right rear EPB caliper assembly.
The control unit judges a clamping or releasing request of an operator to the EPB caliper through the EPB switch signal, acquires an EPB caliper assembly signal and judges whether the EPB caliper is in an unowned fault state or not; and controlling the clamping or releasing of the EPB calipers according to the operator request and the unown fault state of the EPB calipers.
Example 3
This embodiment is a vehicle capable of executing the control method in the EPB caliper unknown failure state described in embodiment 1.
Example 4
The present embodiment is a storage medium having stored thereon a computer program which, when executed by a processor, implements the control method in the EPB caliper unknown fault state as described in embodiment 1.
Any combination of one or more computer readable media may be employed. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (8)
1. The control method of the EPB caliper under the unown fault state is characterized by comprising the following steps of:
s1, monitoring whether an operator requests to clamp the EPB calipers, if so, executing a step S2, otherwise, executing a step S3:
s2, judging whether the EPB calipers are in an unowned fault state, if the EPB calipers are in the unowned fault state, the EPB calipers do not act, and if the EPB calipers are in a non-unowned fault state, the EPB calipers are controlled to execute clamping actions;
s3, further judging whether an operator requests to release the EPB calipers, if so, executing a step S4, otherwise, controlling the EPB calipers not to act:
s4, judging whether the EPB calipers are in an unbown fault state, and if the EPB calipers are in a non-unbown fault state, controlling the EPB calipers to execute a release action; if the EPB caliper is in an unknown fault state, executing a step S5;
s5, judging whether the vehicle is in a static state, and if the vehicle is in a non-static state, executing EPB caliper release action; if the vehicle is in a stationary state, an asemblycheck operation is performed.
2. A control method in an EPB caliper unknown fault condition according to claim 1, wherein in step S1, it is determined whether the operator requests clamping of the EPB caliper by monitoring the action of the operator pulling up the EPB switch.
3. The control method in an EPB caliper unknown fault state according to claim 1, wherein in the step S3, whether the operator has a request to release the EPB caliper is determined by monitoring whether the operator has an action to depress the brake and press the EPB switch.
4. The control method in an EPB caliper unknown fault state according to claim 1, wherein in the step S5, the judgment condition that the vehicle is in a stationary state is: and if the vehicle speed signal is less than or equal to 0.4Kph, judging that the vehicle is in a stationary state.
5. The control method in an EPB caliper unbown fault condition according to claim 1, wherein in said step S5, said asssembly check operation is: the clamping of the EPB calipers is firstly carried out, and then the EPB calipers are controlled to be released to the correct position.
6. A control system in the case of an EPB caliper unknown fault condition, characterized in that it is adapted to perform the control method according to any one of claims 1-5, said control system comprising a control unit, a power supply, an EPB switch, a left rear EPB caliper assembly and a right rear EPB caliper assembly; the power supply is electrically connected with the control unit; the EPB switch is in signal connection with the control unit; the control unit is in signal connection with the left rear EPB caliper assembly and the right rear EPB caliper assembly; the control unit judges a clamping or releasing request of an operator to the EPB caliper through the EPB switch signal, acquires an EPB caliper assembly signal and judges whether the EPB caliper is in an unowned fault state or not; and controlling the clamping or releasing of the EPB calipers according to the operator request and the unown fault state of the EPB calipers.
7. Vehicle, characterized in that it uses a control method in the case of an EPB caliper unknown fault condition according to any of claims 1-5.
8. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements a control method in an EPB caliper unknown fault state according to any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311491456.8A CN117445885A (en) | 2023-11-09 | 2023-11-09 | Control method, system, vehicle and medium for EPB caliper under unown fault state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311491456.8A CN117445885A (en) | 2023-11-09 | 2023-11-09 | Control method, system, vehicle and medium for EPB caliper under unown fault state |
Publications (1)
| Publication Number | Publication Date |
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| CN117445885A true CN117445885A (en) | 2024-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311491456.8A Pending CN117445885A (en) | 2023-11-09 | 2023-11-09 | Control method, system, vehicle and medium for EPB caliper under unown fault state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117445885A (en) |
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- 2023-11-09 CN CN202311491456.8A patent/CN117445885A/en active Pending
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