CN113619387A - Engine overspeed control method and device, vehicle and vehicle overspeed control method - Google Patents
Engine overspeed control method and device, vehicle and vehicle overspeed control method Download PDFInfo
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- CN113619387A CN113619387A CN202111014712.5A CN202111014712A CN113619387A CN 113619387 A CN113619387 A CN 113619387A CN 202111014712 A CN202111014712 A CN 202111014712A CN 113619387 A CN113619387 A CN 113619387A
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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
- B60K31/02—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 including electrically actuated servomechanism including an electric control system or a servomechanism in which the vehicle velocity affecting element is actuated electrically
Abstract
The application relates to the technical field of vehicles, and provides an engine overspeed control method, an engine overspeed control device, a vehicle and a vehicle overspeed control method. The engine overspeed control method comprises the following steps: acquiring the rotating speed of an engine; judging whether the rotating speed of the engine is greater than a first set rotating speed or not; when the rotating speed of the engine is greater than a first set rotating speed, a first control instruction is sent out; the clutch booster is pushed according to the first control command, so that the clutch is separated from the engine. According to the engine overspeed control method, the clutch booster is pushed by comparing whether the rotating speed of the engine is greater than a first set rotating speed or not and sending a first control instruction when the rotating speed of the engine is greater than the first set rotating speed, so that the clutch is separated from the engine in a manner of directly controlling the rotating speed of the engine, the condition of ultra-high rotating speed of the engine can be avoided, and the service life of the engine is prolonged.
Description
Technical Field
The application relates to the technical field of vehicles, in particular to an engine overspeed control method, an engine overspeed control device, a vehicle and a vehicle overspeed control method.
Background
In the related art, once the engine speed of the running vehicle is too high, the running vehicle not only causes damage to the machine itself, but also may threaten an operator or people around the running vehicle. At present, it is conventional that when an engine is overspeed due to technical failure, the engine speed sensor transmits the collected speed signal to the controller, and if the controller determines that the speed signal exceeds a set value, the controller outputs a control signal to the fuel cut-off solenoid valve to cut off the fuel supply to the engine, so as to reduce the engine speed until the engine stops.
However, the engine may still have a high rotational speed for a certain period of time even when the gear is shifted in a wrong direction due to the influence of inertia of the rotational speed of the engine, and therefore, the occurrence of the excessively high rotational speed of the engine cannot be completely prevented.
Content of application
In view of this, the embodiment of the application provides an engine overspeed control method, an engine overspeed control device, a vehicle and a vehicle overspeed control method, and solves the technical problem that the engine is easily damaged due to the passive increase of the engine speed.
In a first aspect, the present application provides an engine overspeed control method comprising: acquiring the rotating speed of an engine; judging whether the rotating speed of the engine is greater than a first set rotating speed or not; when the rotating speed of the engine is greater than the first set rotating speed, a first control instruction is sent out; and pushing a clutch booster according to the first control command, so that the clutch is separated from the engine.
According to the engine overspeed control method provided by the first aspect of the application, the clutch booster is pushed by comparing whether the rotating speed of the engine is greater than the first set rotating speed and sending the first control instruction when the rotating speed of the engine is greater than the first set rotating speed, so that the clutch is separated from the engine by directly controlling the rotating speed of the engine, the condition that the engine has ultrahigh rotating speed can be avoided, and the service life of the engine is prolonged.
With reference to the first aspect, in one possible implementation manner, the engine overspeed control method further includes: judging whether the rotating speed of the engine is less than a second set rotating speed or not; when the rotating speed of the engine is less than the second set rotating speed, a second control instruction is sent out; releasing the clutch booster according to the second control instruction to stop controlling the clutch to be separated from the engine; wherein the second set rotational speed is less than the first set rotational speed.
With reference to the first aspect, in one possible implementation manner, the second set rotation speed is 75% to 85% of the first set rotation speed.
With reference to the first aspect, in one possible implementation manner, the engine overspeed control method further includes: and when the rotating speed of the engine is greater than the first set rotating speed, sending alarm information.
With reference to the first aspect, in a possible implementation manner, the sending out an alarm message when the engine speed is greater than the first set speed specifically includes: when the rotating speed of the engine is greater than the first set rotating speed, a third control instruction is sent out; and sending the alarm information according to the third control instruction.
In a second aspect, the present application provides an engine overspeed control apparatus comprising: a rotational speed detection element configured to acquire and transmit an engine rotational speed signal; the control unit is in communication connection with the rotating speed detection element and is configured to acquire the engine rotating speed signal sent by the rotating speed detection element so as to judge the engine rotating speed and a first preset rotating speed and acquire a judgment result; and the actuating mechanism is in communication connection with the control unit and is configured to execute the action of pushing the clutch booster according to the judgment result.
The engine overspeed control device provided in the second aspect of the present application has the technical effects of any one of the engine overspeed control devices described above because it is used to implement the engine overspeed control method in any one of the implementations described above, and will not be described herein again.
With reference to the second aspect, in one possible implementation manner, the clutch booster includes a push rod, and the actuator includes: the linear motion mechanism is connected with the push rod and moves along a first direction to push the push rod, or the linear motion mechanism moves along a second direction to be separated from the push rod; wherein the first direction and the second direction are opposite to each other.
With reference to the second aspect, in one possible implementation manner, the engine overspeed control apparatus further includes: and the alarm system is in communication connection with the control unit and is configured to selectively send out alarm information according to the judgment result.
With reference to the second aspect, in one possible implementation manner, the alarm system includes a voice alarm.
In a third aspect, the present application provides a vehicle comprising: an engine; the engine overspeed control apparatus of any one of the implementations, an actuator of the engine overspeed control apparatus being connected to the engine, the actuator being configured to selectively urge the clutch booster; and a clutch selectively coupled to or decoupled from the clutch booster.
The vehicle according to the third aspect of the present application includes the engine overspeed control apparatus according to any one of the above-described implementations, and therefore, the technical effects of the engine overspeed control apparatus according to any one of the above-described implementations are achieved, and details thereof are omitted.
In a fourth aspect, the present application provides a vehicle overspeed control method comprising: the engine overspeed control method of any one of the implementations.
The vehicle overspeed control method provided by the fourth aspect of the present application includes the engine overspeed control method in any one of the above-described implementation manners, and therefore, the technical effects of the engine overspeed control method in any one of the above-described implementation manners are achieved, and details are not repeated here.
Drawings
FIG. 1 is a flow chart illustrating an engine overspeed control method provided in some implementations of the present application.
FIG. 2 is a flow chart illustrating an engine overspeed control method according to further implementations of the present disclosure.
FIG. 3 is a flow chart illustrating a method for engine overspeed control provided by some other implementations shown in FIG. 1.
Fig. 4 is a flowchart illustrating that when the engine speed is greater than the first set speed, the alarm information is sent out according to the engine overspeed control method provided by the implementation manner shown in fig. 3.
FIG. 5 is a flow chart illustrating an engine overspeed control method according to still other implementations of the present application.
FIG. 6 is a schematic diagram illustrating the components of an engine overspeed control apparatus according to some implementations of the present application.
FIG. 7 is a schematic diagram illustrating the components of an engine overspeed control apparatus provided in accordance with certain other implementations shown in FIG. 1.
Fig. 8 is a schematic structural diagram of a vehicle according to some implementations of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Summary of the application
In order to solve or improve the technical problem that the engine is easily damaged due to the passive increase of the rotating speed of the engine in the running process of the vehicle in the background technology, an engine overspeed protection control system and a control method thereof for an engineering vehicle can be adopted, wherein the engine overspeed protection control system comprises an engine, an engine rotating speed detection element, a controller and an engine overspeed protection hydraulic system, wherein the engine rotating speed detection element is positioned in the engine and used for detecting the output rotating speed of the engine and transmitting a detected engine rotating speed signal to the controller; the controller is connected with the engine rotating speed detection element and used for receiving a speed value detected by the engine rotating speed detection element, comparing the speed value with a preset value and judging whether to open the engine overspeed protection hydraulic system or not; the engine overspeed protection hydraulic system is connected with the controller and is connected with the engine through the power output device, the engine overspeed protection hydraulic system applies reverse load to the engine according to a current signal sent by the controller, so that the overspeed phenomenon of the engine is prevented, the engine is out of an overspeed state under the condition that the normal operation of the engine is not influenced, and the engine is prevented from being damaged. However, the engine is often overspeed passively when descending a long slope or engaging a wrong gear, no direct measure is provided for overspeed of the engine, and the engine is damaged after the engine speed is overspeed.
In view of the above technical problems, the basic idea of the present application is to provide an engine overspeed control method, device and vehicle. The engine overspeed control method is divided into two layers: the first layer is used for directly acting on the engine, and directly reducing the rotating speed of the engine after judging that the engine is overspeed; the second layer is used for giving an alarm to the driver through the alarm information, so that the driver can timely take measures to decelerate. The engine overspeed protection method, the engine overspeed protection device and the vehicle can prevent passive overspeed when descending a long slope or engaging a wrong gear because the actuating mechanism directly pushes the clutch booster to reduce the rotating speed of the engine.
It should be noted that the engine overspeed control method provided by the present application can be applied to vehicles in any scene. Specifically, the mechanical structure is designed to complete a specific work task in a manner of completing a specific mechanical action or information transmission through a corresponding mechanical structure or a part or all of components in the mechanical structure.
Having described the general principles of the present application, various non-limiting embodiments of the present application will now be described with reference to the accompanying drawings.
Exemplary Engine overspeed control method
FIG. 1 is a flow chart illustrating an engine overspeed control method provided in some implementations of the present application. As shown in fig. 1, the engine overspeed control method includes:
step 101: and acquiring the rotating speed of the engine.
The output end of the engine is connected with the input end of the transmission, and the engine is used for outputting power to the transmission. The engine speed is obtained and is a main basis for further judging whether the vehicle is overspeed or not.
Step 103: and judging whether the engine speed is greater than a first set speed.
It is understood that the first set speed is the maximum sustained overspeed speed permitted by the engine, and may be noted as S1. The acquired engine speed can be recorded as S0, S0 and S1 are compared, and the sizes of S0 and S1 are judged, so that the logical operation process can be simplified.
Step 105: and when the rotating speed of the engine is greater than the first set rotating speed, a first control instruction is sent out.
It is understood that the first control command is issued when the engine speed is greater than the first set speed, which indicates that the engine speed has exceeded the maximum sustained speed allowed by the engine. The first control instruction may be a level signal.
Step 107: the clutch booster is pushed according to the first control command, so that the clutch is separated from the engine.
The clutch booster is used for a vehicle hydraulically operating a clutch mechanism, is installed between a clutch and a clutch master cylinder, and is used for assisting in increasing output force when the clutch is operated to be separated or engaged. According to the engine overspeed control method, the clutch booster is pushed by comparing whether the rotating speed of the engine is greater than a first set rotating speed or not and sending a first control instruction when the rotating speed of the engine is greater than the first set rotating speed, so that the clutch is separated from the engine in a manner of directly controlling the rotating speed of the engine, the condition of ultra-high rotating speed of the engine can be avoided, and the service life of the engine is prolonged.
FIG. 2 is a flow chart illustrating an engine overspeed control method according to further implementations of the present disclosure. As shown in fig. 2, in one possible implementation, the engine overspeed control method further includes:
step 109: and judging whether the engine speed is less than a second set speed.
It is understood that the second set rotational speed is less than the maximum sustained rotational speed permitted by the engine. The second set rotation speed may be written as S2. Comparing S0 with S2, and judging the sizes of S0 and S2.
Step 111: and when the rotating speed of the engine is less than a second set rotating speed, a second control instruction is sent out.
It is understood that the second control command is issued when the engine speed is less than the second set speed. The second control instruction may be a level signal.
Step 113: and releasing the clutch booster according to the second control instruction so as to stop the control clutch from being separated from the engine. Can avoid the damage of the clutch caused by the repeated action of the clutch caused by the change of the rotating speed of the engine
Wherein the second set rotating speed is less than the first set rotating speed.
In one possible implementation, the second set rotational speed is 75% to 85% of the first set rotational speed. Wherein, 80% of the first set rotating speed is used as the second set rotating speed, so that the protection effect on the clutch is better.
FIG. 3 is a flow chart illustrating a method for engine overspeed control provided by some other implementations shown in FIG. 1. As shown in fig. 3, in one possible implementation, the engine overspeed control method further includes:
step 115: and when the rotating speed of the engine is greater than the first set rotating speed, sending alarm information.
Through sending alarm information to the navigating mate, can inform the navigating mate engine speed of revolution is too high, need step on the brake or change reasonable fender position.
Fig. 4 is a flowchart illustrating that when the engine speed is greater than the first set speed, the alarm information is sent out according to the engine overspeed control method provided by the implementation manner shown in fig. 3. As shown in fig. 4, in a possible implementation manner, when the engine speed is greater than a first set speed, the sending an alarm message specifically includes:
step 201: and when the rotating speed of the engine is greater than the first set rotating speed, a third control instruction is sent out.
It is understood that the first control command and the third control command may be issued simultaneously when the engine speed is greater than the first set speed.
Step 203: and sending alarm information according to the third control instruction.
The alarm information can inform the driver to step on the brake or adjust the gear until the actual rotating speed of the engine is lower than S2, and if the actual rotating speed of the engine is less than or equal to S2 and less than S1 multiplied by 80 percent, the clutch is released from a disengaged state.
Exemplary Engine overspeed control apparatus
FIG. 6 is a schematic diagram illustrating the components of an engine overspeed control apparatus according to some implementations of the present application. As shown in fig. 6, the engine overspeed control apparatus 100 includes: a rotational speed detection element 110, a control unit 120, an actuator 130 and a clutch booster 140.
Specifically, the rotation speed detecting element 110 is configured to acquire and transmit an engine rotation speed signal, wherein the rotation speed detecting element 110 may be a rotation speed sensor, the control unit 120 is connected in communication with the rotation speed detecting element 110, and the control unit 120 is configured to acquire the engine rotation speed signal transmitted by the rotation speed detecting element 110, so as to determine the engine rotation speed and the first predetermined rotation speed, and acquire a determination result. The actuator 130 is connected in communication with the control unit 120, wherein the actuator 130 is connected in communication with the control unit 120 via a wiring harness 160, such that the control unit 120 can send a first execution instruction to the actuator 130 via the wiring harness 160. The actuator 130 is configured to perform an action of whether to push the clutch booster 140 according to the judgment result. The result of the determination structure is that the engine speed is greater than the first predetermined speed, or the engine speed is less than or equal to the first predetermined speed, and when the engine speed is greater than the first predetermined speed, the actuator 130 executes the operation of the propulsion clutch booster 140 according to the first command. The control unit 120 may be an electronic control unit.
Since the engine overspeed control device 100 is used to implement the engine overspeed control method according to any one of the above embodiments, the engine overspeed control device 100 has the technical effects of any one of the above embodiments, and will not be described herein again.
Fig. 8 is a schematic structural diagram of a vehicle according to some implementations of the present disclosure. As shown in fig. 8, in one possible implementation, the clutch booster includes a push rod, and the actuator includes: and the linear motion mechanism is connected with the push rod and can be a linear motor, the linear motion mechanism moves along a first direction X1 to push the push rod, or the linear motion mechanism moves along a second direction X2 to be separated from the push rod. The first direction X1 and the second direction X2 are opposite.
FIG. 7 is a schematic diagram illustrating the components of an engine overspeed control apparatus provided in accordance with certain other implementations shown in FIG. 1. In one possible implementation, the engine overspeed control apparatus 100 further includes: an alarm system 150, the alarm system 150 being in communication with the control unit 120, the alarm system 150 being configured to selectively send out alarm information based on the determination.
In one possible implementation, the alarm system 150 includes a voice alarm to enable the audible alarm to be sounded, allowing the alarm to be more time-sensitive.
FIG. 5 is a flow chart illustrating an engine overspeed control method according to still other implementations of the present application. As shown in fig. 5, the engine overspeed control method includes:
step 301: an Electronic Control Unit (ECU) reads the engine speed.
Step 303: and judging whether the engine speed is greater than a first set speed.
Step 305: if yes, the electronic control unit sends a first control instruction to the execution mechanism and sends a third control instruction to the voice system.
The electronic control unit sends out a first control instruction, and the execution mechanism executes corresponding action according to the first control instruction.
Step 307: the actuating mechanism pushes the clutch booster to work, so that the clutch is separated from the engine, the rotating speed of the engine is not increased passively, and the voice system sends out alarm information to inform a driver of stepping on a brake or replacing a reasonable gear, and the rotating speed of the engine is reduced.
And pushing the clutch booster to work so that the clutch booster is disengaged. The alarm information is used for reminding a driver of informing the driver that the engine rotating speed is too high.
Step 309: and judging whether the engine speed is less than a second set speed. And S2 is S1 x 80% to avoid the damage of the clutch caused by the repeated action of the clutch due to the change of the rotating speed.
Step 311: and the electronic control unit sends a second control instruction to the executing mechanism, releases the clutch booster and enters a normal working mode.
And when the rotating speed of the engine is less than the second set rotating speed, the ECU sends a second control instruction to enable the executing mechanism to release the clutch booster, so that the clutch is normally connected with the engine.
Exemplary vehicle
Fig. 8 is a schematic structural diagram of a vehicle according to some implementations of the present disclosure. As shown in fig. 8, the vehicle 10 includes: engine 200, clutch and in any implementation of engine overspeed control apparatus 100, engine 200 is located within frame 300, and actuator 130 of engine overspeed control apparatus 100 is coupled to engine 200, and actuator 130 is configured to selectively urge clutch booster 140. The clutch and the clutch booster 140 may be selectively coupled to or decoupled from each other.
The engine overspeed control apparatus 100 obtains an engine speed signal detected and sent by the speed detecting element 110 through the control unit 120, and determines whether the engine speed is greater than a first set speed, and when the engine speed is greater than the first set speed, a first control instruction is sent out, so that the executing mechanism 130 pushes the clutch booster 140 according to the first control instruction.
It is understood that the rotation speed detecting element 110 is configured to acquire the engine rotation speed of the engine 200, and the clutch booster 140 are selectively coupled to or decoupled from each other. Actuator 130 of engine overspeed control apparatus 100 is coupled to engine 200, and actuator 130 is configured to selectively urge clutch booster 140. The clutch and the clutch booster 140 may be selectively coupled to or decoupled from each other. The vehicle 10 further includes a transmission 400, the transmission 400 being coupled to the engine 200.
Since vehicle 10 includes engine overspeed control device 100 according to any one of the above embodiments, the technical effects of engine overspeed control device 100 according to any one of the above embodiments are achieved, and therefore, detailed description thereof is omitted.
Exemplary vehicle overspeed control method
The vehicle overspeed control method comprises the following steps: the engine overspeed control method of any one of the implementations.
Since the vehicle overspeed control method includes the engine overspeed control method in any one of the above-described implementations, the vehicle overspeed control method has the technical effects of the engine overspeed control method in any one of the above-described implementations, and is not described herein again.
The control unit 120 includes: a processor and a memory having stored therein computer program instructions that, when executed by the processor, cause the processor to perform the engine overspeed control method of any of the implementations. The processor may be a Central Processing Unit (CPU) or other form of processing unit having data processing capabilities and/or instruction execution capabilities, and may control other components in the electronic device to perform desired functions.
The memory may include one or more computer program products that may include various forms of computer-readable storage media, such as volatile memory and/or non-volatile memory. The volatile memory may include, for example, Random Access Memory (RAM), cache memory (cache), and/or the like. The non-volatile memory may include, for example, Read Only Memory (ROM), hard disk, flash memory, etc. One or more computer program instructions may be stored on the computer-readable storage medium and executed by the processor 1101 to implement the steps of the mechanical mechanism control method of the various embodiments of the present application described above and/or other desired functions. Information such as light intensity, compensation light intensity, position of the filter, etc. may also be stored in the computer readable storage medium.
Exemplary computerProgram product and readable storage medium
In addition to the above-described methods and apparatus, embodiments of the present application may also be a computer program product comprising computer program instructions that, when executed by a processor, cause the processor to perform the steps of the engine overspeed control method of any of the above-described embodiments.
The computer program product may include program code for carrying out operations for embodiments of the present application in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like 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 computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server.
Furthermore, embodiments of the present application may also be a computer-readable storage medium having stored thereon computer program instructions that, when executed by a processor, cause the processor to perform the steps in the mechanical mechanism control method according to the various embodiments of the present application described in the "exemplary mechanical mechanism control method" section above in this specification.
A computer-readable storage medium may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may include, 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 readable storage medium include: an electrical connection having one or more wires, a portable disk, 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.
The foregoing describes the general principles of the present application in conjunction with specific embodiments, however, it is noted that the advantages, effects, etc. mentioned in the present application are merely examples and are not limiting, and they should not be considered essential to the various embodiments of the present application. Furthermore, the foregoing disclosure of specific details is for the purpose of illustration and description and is not intended to be limiting, since the foregoing disclosure is not intended to be exhaustive or to limit the disclosure to the precise details disclosed.
The block diagrams of devices, apparatuses, systems referred to in this application are only given as illustrative examples and are not intended to require or imply that the connections, arrangements, configurations, etc. must be made in the manner shown in the block diagrams. These devices, apparatuses, devices, systems may be connected, arranged, configured in any manner, as will be appreciated by those skilled in the art. Words such as "including," "comprising," "having," and the like are open-ended words that mean "including, but not limited to," and are used interchangeably therewith. The words "or" and "as used herein mean, and are used interchangeably with, the word" and/or, "unless the context clearly dictates otherwise. The word "such as" is used herein to mean, and is used interchangeably with, the phrase "such as but not limited to".
It should also be noted that in the devices, apparatuses, and methods of the present application, the components or steps may be decomposed and/or recombined. These decompositions and/or recombinations are to be considered as equivalents of the present application.
The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit embodiments of the application to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modifications, equivalents and the like that are within the spirit and principle of the present application should be included in the scope of the present application.
Claims (10)
1. An engine overspeed control method characterized by comprising:
acquiring the rotating speed of an engine;
judging whether the rotating speed of the engine is greater than a first set rotating speed or not;
when the rotating speed of the engine is greater than the first set rotating speed, a first control instruction is sent out;
and pushing a clutch booster according to the first control command, so that the clutch is separated from the engine.
2. The engine overspeed control method according to claim 1, characterized in that said engine overspeed control method further comprises:
judging whether the rotating speed of the engine is less than a second set rotating speed or not;
when the rotating speed of the engine is less than the second set rotating speed, a second control instruction is sent out;
releasing the clutch booster according to the second control instruction to stop controlling the clutch to be separated from the engine;
wherein the second set rotational speed is less than the first set rotational speed.
3. The engine overspeed control method according to claim 2, characterized in that said second set rotation speed is 75% to 85% of said first set rotation speed.
4. The engine overspeed control method according to any one of claims 1 to 3, characterized by further comprising:
and when the rotating speed of the engine is greater than the first set rotating speed, sending alarm information.
5. The engine overspeed control method according to claim 4, characterized in that said issuing an alarm message when said engine speed is greater than said first set speed specifically includes:
when the rotating speed of the engine is greater than the first set rotating speed, a third control instruction is sent out;
and sending the alarm information according to the third control instruction.
6. An engine overspeed control apparatus characterized by comprising:
a rotational speed detection element configured to acquire and transmit an engine rotational speed signal;
the control unit is in communication connection with the rotating speed detection element and is configured to acquire the engine rotating speed signal sent by the rotating speed detection element so as to judge the engine rotating speed and a first preset rotating speed and acquire a judgment result; and
and the actuating mechanism is in communication connection with the control unit and is configured to execute the action of pushing the clutch booster according to the judgment result.
7. The engine overspeed control apparatus of claim 6 wherein said clutch booster includes a push rod, said actuator includes:
the linear motion mechanism is connected with the push rod and moves along a first direction to push the push rod, or the linear motion mechanism moves along a second direction to be separated from the push rod;
wherein the first direction and the second direction are opposite to each other.
8. The engine overspeed control apparatus of claim 6 further comprising:
and the alarm system is in communication connection with the control unit and is configured to selectively send out alarm information according to the judgment result.
9. A vehicle, characterized in that the vehicle comprises:
an engine;
the engine overspeed control apparatus of any one of claims 6 to 9, an actuator of said engine overspeed control apparatus being connected to said engine, said actuator being configured to selectively urge said clutch booster; and
a clutch selectively coupled to or decoupled from the clutch booster.
10. A vehicle overspeed protection control method characterized by comprising: the engine overspeed control method according to any one of claims 1 to 5.
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| CN202111014712.5A CN113619387A (en) | 2021-08-31 | 2021-08-31 | Engine overspeed control method and device, vehicle and vehicle overspeed control method |
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| CN202111014712.5A CN113619387A (en) | 2021-08-31 | 2021-08-31 | Engine overspeed control method and device, vehicle and vehicle overspeed control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893310A (en) * | 2022-04-24 | 2022-08-12 | 潍柴动力股份有限公司 | Engine protection control method and device and electronic equipment |
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| CN111267802A (en) * | 2020-03-11 | 2020-06-12 | 三一专用汽车有限责任公司 | Vehicle control method, vehicle control system and automobile |
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