CN114321215B - Double-clutch vehicle escaping method, device and system and vehicle - Google Patents
Double-clutch vehicle escaping method, device and system and vehicle Download PDFInfo
- Publication number
- CN114321215B CN114321215B CN202011074561.8A CN202011074561A CN114321215B CN 114321215 B CN114321215 B CN 114321215B CN 202011074561 A CN202011074561 A CN 202011074561A CN 114321215 B CN114321215 B CN 114321215B
- Authority
- CN
- China
- Prior art keywords
- clutch
- vehicle
- preset
- engine
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 239000002826 coolant Substances 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 21
- 230000009977 dual effect Effects 0.000 claims description 17
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000000110 cooling liquid Substances 0.000 description 8
- 238000004590 computer program Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000002679 ablation Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Landscapes
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Control Of Transmission Device (AREA)
Abstract
The embodiment of the application provides a method, a device, a system and a vehicle for escaping from a double-clutch vehicle, and belongs to the technical field of automobiles. The method is applied to a vehicle, and the vehicle comprises the following steps: a first clutch and a second clutch; the method comprises the following steps: receiving preset conditions corresponding to the basic parameters output by the vehicle; judging whether each basic parameter accords with a preset condition corresponding to the basic parameter; if yes, the first clutch is controlled to transmit a first torque value of the engine, and a second gear synchronizer is combined to output the first torque value of the engine to a wheel end; wherein the first clutch accelerates a flow of a coolant to accelerate cooling of the second clutch when the first clutch transmits a first torque value of the engine. By using the method for removing the trapped double clutch vehicle, the second clutch can be cooled on the premise of helping the vehicle to get rid of the trapped double clutch vehicle.
Description
Technical Field
The embodiment of the application relates to the technical field of automobiles, in particular to a method, a device and a system for releasing a double-clutch vehicle and the vehicle.
Background
A clutch is an automotive component for temporarily disengaging or gradually engaging an engine with a transmission, and is capable of shutting off power input from the engine to the transmission; power input by the engine to the transmission may also be transmitted.
In the prior art, when a vehicle starts on a road with relatively small adhesion, for example, on a gravel road, the vehicle is liable to slip. When the vehicle slips, the clutch temperature can rise rapidly, and if the vehicle starts continuously under the condition that the clutch temperature rises, the clutch is easy to ablate. Therefore, to prevent the clutch from ablating under high temperature conditions, the output torque of the engine is typically reduced to protect the clutch.
However, after the engine output torque is reduced, the acceleration capability of the automobile is reduced, resulting in a reduction in the escaping capability of the vehicle.
Disclosure of Invention
The embodiment of the application provides a double-clutch vehicle escaping method and a vehicle thereof, and aims to solve the problems that the temperature of a clutch is too high and the escaping capability of the vehicle is low under the condition that the vehicle continuously starts.
An embodiment of the present application provides a method for releasing a dual clutch vehicle, where the method is applied to a vehicle, and the vehicle includes: a first clutch and a second clutch; the method comprises the following steps:
receiving preset conditions corresponding to the basic parameters output by the vehicle;
judging whether each basic parameter accords with a preset condition corresponding to the basic parameter;
if yes, the first clutch is controlled to transmit a first torque value of the engine, and a second gear synchronizer is combined to output the first torque value of the engine to a wheel end;
wherein the first clutch accelerates a flow of a coolant to accelerate cooling of the second clutch when the first clutch transmits a first torque value of the engine.
Optionally, each basic parameter includes: the rotation speed difference of the driving wheel, the gear, the throttle and the temperature of the second clutch; judging whether each basic parameter meets the preset conditions corresponding to the basic parameters or not comprises the following steps:
when the rotation speed difference of the driving wheel is larger than a preset first rotation speed difference threshold value, the gear satisfies the preset gear, the accelerator is larger than a preset accelerator threshold value, and the temperature of the second clutch is larger than or equal to a preset first temperature threshold value, the basic parameters conform to preset conditions corresponding to the basic parameters.
Optionally, the basic parameters further include: vehicle speed; the method further comprises the steps of:
when the rotation speed difference of the driving wheel is larger than a preset second rotation speed difference threshold value and smaller than the preset first rotation speed difference threshold value, the vehicle speed is 0km/h, the gear satisfies the preset gear, and the accelerator is in an initial state, determining that the vehicle is in a function preparation state, controlling the first clutch to transmit a second torque value of the engine, and simultaneously outputting the second torque value of the engine to a wheel end in combination with the second gear synchronizer;
wherein the second torque value is less than the first torque value.
Optionally, in the case that the first clutch transmits the first torque value of the engine, the first clutch accelerates a flow of a coolant to accelerate cooling of the second clutch, further comprising:
when the vehicle speed is greater than a preset speed threshold value and the temperature of the second clutch is less than or equal to a preset second temperature threshold value, the vehicle is determined to be in a escaping state, and the first clutch is controlled to be disconnected from between the engine and the transmission so as to stop transmitting the torque output by the engine; wherein the preset second temperature threshold is less than the preset first temperature threshold.
Optionally, in the case that the first clutch transmits the first torque value of the engine, the first clutch accelerates a flow of a coolant to accelerate cooling of the second clutch, further comprising:
when the temperature of the second clutch is greater than or equal to a preset third temperature threshold value, the first clutch is controlled to be disconnected from the engine and the transmission so as to stop transmitting the torque output by the engine; wherein the preset third temperature threshold is greater than the preset first temperature threshold.
Optionally, before receiving the preset condition that each basic parameter of the vehicle output corresponds to each basic parameter, the method further includes:
and detecting the temperature of the second clutch in real time through a temperature sensor.
A second aspect of the embodiments of the present application provides a dual clutch vehicle escaping device, the device being applied to a vehicle, the vehicle comprising: a first clutch and a second clutch; the device comprises:
the data receiving unit is used for receiving preset conditions of each basic parameter output by the vehicle and corresponding to each basic parameter;
the judging unit is used for judging whether the basic parameters accord with preset conditions corresponding to the basic parameters;
a control unit; if yes, the first clutch is controlled to transmit a first torque value of the engine, and a second gear synchronizer is combined to output the first torque value of the engine to a wheel end;
wherein the first clutch accelerates a flow of a coolant to accelerate cooling of the second clutch under control of the first clutch to transmit a first torque value of the engine.
A third aspect of the embodiments of the present application provides a dual clutch vehicle escaping system, which is characterized in that the system is applied to a vehicle, and the vehicle comprises: the system comprises a first clutch and a second clutch, and the double clutch vehicle escaping device provided in the second aspect of the embodiment of the application.
A fourth aspect of the embodiments of the present application provides a vehicle, including a dual clutch vehicle escaping device provided in the second aspect of the embodiments of the present application or a dual clutch vehicle escaping system provided in the third aspect of the embodiments of the present application.
By adopting the method for releasing the double clutch vehicle, under the condition of vehicle slipping, if continuous starting of the vehicle is carried out. At this time, judging whether each basic parameter accords with a preset condition corresponding to the basic parameter, if so, representing that the current second clutch is in a high-temperature state, and controlling the first clutch to transmit a first torque value between the engine and the transmission so as to accelerate the flow of cooling liquid, thereby accelerating the cooling of the second clutch and avoiding the high-temperature ablation of the second clutch; meanwhile, after the first clutch transmits the first torque value, the first torque value of the engine can be output to the wheel end by combining the second synchronizer, so that the vehicle is helped to get rid of the trouble.
The first clutch is controlled to transmit a first torque value of the engine by judging whether the basic parameters meet preset conditions, and after the second gear synchronizer is combined, the first torque value of the engine is transmitted to a wheel end to achieve escaping; and when the first clutch transmits a first torque value of the engine, the engine can drive the first clutch to rotate at a high speed so as to accelerate the flow of cooling liquid, thereby cooling the second clutch and protecting the second clutch.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments of the present application will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic logic diagram of a method for releasing a dual clutch vehicle according to an embodiment of the present application;
FIG. 2 is a flow chart illustrating steps of a method for releasing a dual clutch vehicle according to an embodiment of the present application;
FIG. 3 is a schematic illustration of a dual clutch configuration according to one embodiment of the present application;
fig. 4 is a schematic view of a dual clutch vehicle escaping device according to another embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
Example 1
Referring to fig. 1 and 2, a method for releasing a dual clutch vehicle, the method is applied to a vehicle, and the vehicle comprises: a first clutch and a second clutch; the method comprises the following steps:
step S1: and receiving preset conditions corresponding to the basic parameters output by the vehicle.
Wherein, each basic parameter includes: the rotation speed difference of the driving wheel, the gear, the throttle and the second clutch temperature.
The preset conditions comprise: a preset first rotation speed difference threshold, a preset gear, a preset throttle threshold and a preset first temperature threshold. For example, the preset first rotational speed difference threshold may be 200rpm; the preset gear may be a D gear; the preset throttle threshold may be 20% throttle opening; the preset first temperature threshold may be 200 ℃.
In this step, the preset condition is that the second clutch is close to the preset condition of ablation, that is, when each basic parameter meets the preset condition, the second clutch is in a non-ablated state.
Step S2: and judging whether each basic parameter accords with a preset condition corresponding to the basic parameter.
When the rotation speed difference of the driving wheel is larger than a preset first rotation speed difference threshold value, the gear satisfies the preset gear, the accelerator is larger than a preset accelerator threshold value, and the temperature of the second clutch is larger than or equal to a preset first temperature threshold value, the basic parameters conform to preset conditions corresponding to the basic parameters.
For example, when the difference of the rotation speed of the driving wheel is greater than 200rpm, the gear is the D gear, the accelerator is greater than 20% of the accelerator pedal opening, and the temperature of the second clutch is greater than or equal to 200 ℃, the corresponding preset condition is satisfied.
In this step, whether each basic parameter meets the preset condition corresponding to the basic parameter can be judged by the whole vehicle controller, for example, the preset condition corresponding to each basic parameter is stored in the whole vehicle controller in advance, when judging whether each basic parameter meets the preset condition corresponding to the basic parameter, the monitoring device detects each basic parameter output by the vehicle in real time and sends each basic parameter output by the vehicle to the whole vehicle controller in real time, and the whole vehicle controller judges whether each basic parameter meets the preset condition corresponding to the basic parameter. The monitoring device may include a speed sensor, a gear sensor, a temperature sensor, etc. to detect each basic parameter in real time and report the detected parameter to the vehicle controller, for example, the temperature sensor may detect the temperature of the second clutch in real time.
Step S3: if each basic parameter meets the preset condition corresponding to the basic parameter, controlling the first clutch to transmit a first torque value of an engine, and simultaneously combining a second gear synchronizer to output the first torque value of the engine to a wheel end;
wherein the first clutch accelerates a flow of a coolant to accelerate cooling of the second clutch when the first clutch transmits a first torque value of the engine.
The clutch is positioned between the engine and the speed changer, the clutch comprises a steel sheet and a friction plate, the steel sheet is fixedly connected with the engine, the friction plate is fixedly connected with the speed changer, when the steel sheet is controlled to be connected with the friction plate, the engine can transmit torque to the speed changer through the clutch, the clutch rotates at a high speed after the engine is connected with the speed changer, and the flow of cooling liquid can be accelerated when the clutch rotates at a high speed. The transmission may enable shifting of different gears of the vehicle, such as 1, 2, 3, 4, etc. Referring to fig. 3, the dual clutch includes a first clutch and a second clutch, the second clutch being located outside the first clutch, the first clutch controlling 2, 4 and 6 gears of the vehicle; the second clutch controls 1, 3, 5 and 7 gears of the vehicle; the first clutch and the second clutch are located in the same oil liquid groove together, and the flow of cooling liquid in the same oil liquid groove can be accelerated when the first clutch rotates, so that the second clutch can be cooled more quickly.
In this step, after the vehicle starts by combining the second clutch with the first gear synchronizer, if the temperature of the second clutch increases due to the slip of the vehicle, that is, each basic parameter meets the preset condition corresponding to the second clutch, at this time, in order to avoid ablation of the second clutch, the vehicle controller will control the first clutch to transmit the first torque value of the engine, and simultaneously combine with the second gear synchronizer to transmit the first torque value of the engine to the wheel end, thereby ensuring that the vehicle can get rid of poverty after starting.
For example, when the automobile slips on a road with relatively high road resistance and relatively low adhesion, such as a sand road surface, and needs to get rid of the slip, the second clutch transmits a torque value first, and a first gear synchronizer is combined to start 1 gear; after starting, if each basic parameter output by the vehicle meets a preset condition, namely before the second clutch is about to be ablated, the first clutch is controlled to transmit a first torque value of the engine to the transmission, and is combined with the second gear synchronizer to achieve escaping, and the first clutch can rotate at a high speed when transmitting the first torque value of the engine to the transmission, so that the flow of cooling liquid is quickened, and the second clutch is cooled.
In a possible implementation manner, when the rotation speed difference of the driving wheel is larger than a preset second rotation speed difference threshold and smaller than the preset first rotation speed difference threshold, the vehicle speed is 0km/h, the gear satisfies the preset gear, and the accelerator is in an initial state, determining that the vehicle is in a function preparation state, controlling the first clutch to transmit a second torque value of the engine, and simultaneously outputting the second torque value of the engine to a wheel end in combination with the second gear synchronizer; wherein the second torque value is less than the first torque value.
In this embodiment, the preset first rotational speed difference threshold is smaller than the preset second rotational speed difference threshold, and the preset first rotational speed difference threshold may be 100rpm; the preset gear may be a D gear; the throttle initial state may be 0, and the functional ready state refers to a state in which the vehicle has slipped, but the vehicle has not yet reached the second clutch ablation.
Wherein the torque value of the engine is proportional to the rotational speed of the clutch, and the rotational speed of the first clutch is greater than the rotational speed of the first clutch when the first clutch transmits the first torque value of the engine to the transmission because the first torque value is greater than the second torque value of the engine.
For example, when the rotation speed difference is greater than 100rpm and less than 200rpm, the vehicle speed is 0km/h, the gear is D gear, and the accelerator is 0, the vehicle is characterized as not meeting the preset condition that the second clutch is to be ablated, the first clutch does not need to rotate at an excessively high rotation speed through the first torque value of the engine, the first clutch is directly driven to rotate at a low speed through the second torque value of the engine, and the cooling of the second clutch can be completed and the second clutch is assisted to jointly transmit torque to the wheel end.
After the temperature of the second clutch is continuously increased, if the first clutch is driven to rotate at a low speed by the first torque value of the engine, the second clutch cannot be cooled when the temperature is greater than or equal to a preset first temperature threshold value. Therefore, when the temperature of the second clutch rises to a preset first temperature threshold value and other preset conditions are met, the second torque value of the engine is increased to a first torque value so as to increase the rotation speed of the first clutch, further accelerate the flow of cooling liquid and accelerate the cooling of the second clutch; and after the second torque value of the engine is increased to the first torque value, larger torque can be transmitted to the wheel end so as to help the vehicle get rid of the trapping.
In a possible embodiment, after step S3, further comprising:
when the vehicle speed is greater than a preset speed threshold value and the temperature of the second clutch is less than or equal to a preset second temperature threshold value, the vehicle is determined to be in a escaping state, and the first clutch is controlled to be disconnected from between the engine and the transmission so as to stop transmitting torque; wherein the preset second temperature threshold is less than the preset first temperature threshold.
In this embodiment, the preset speed threshold may be 5km/h; the preset second temperature threshold may be 180 ℃. For example, when the vehicle speed is greater than 5km/h and the second clutch temperature is less than or equal to 180 ℃, the first clutch is controlled to be disconnected from between the engine and the transmission, i.e. the steel plates of the clutch are controlled to be disconnected from the friction plates, so that the engine is disconnected from the transmission, and torque of the engine is no longer transmitted to the wheel end.
When the vehicle speed is greater than 5km/h, the vehicle is indicated to get rid of poverty; when the second clutch temperature is less than or equal to 180 ℃, it is indicated that the second clutch is at a normal temperature where it will not ablate. Because the vehicle is trapped and the second clutch is cooled, the first clutch can be controlled to be disconnected from the position between the engine and the transmission, and the vehicle can normally run in a first gear state by directly combining the second clutch with the first gear synchronizer.
In a possible embodiment, after step S3, further comprising:
when the temperature of the second clutch is greater than or equal to a preset third temperature threshold value, the first clutch is controlled to be disconnected from the engine and the transmission so as to stop transmitting the torque output by the engine; wherein the preset third temperature threshold is greater than the preset first temperature threshold.
In this embodiment, the preset third temperature threshold may be 300 ℃. For example, when the second clutch temperature is greater than 300 ℃, it is indicated that the dual clutch override method of the present application has failed, at which point the first clutch is controlled to disengage from between the engine and the transmission to stop transmitting torque output by the engine.
The preset third temperature threshold is a limit temperature value of the second clutch, at which the temperature of the second clutch cannot be reduced to a normal temperature, for example 180 ℃, even though the cooling operation is performed on the second clutch by the first clutch, at this time, in order to save vehicle energy, the first clutch may be controlled to be disconnected from between the engine and the transmission to stop transmitting the torque output by the engine.
Example two
Referring to fig. 4, another embodiment of the present application provides a dual clutch vehicle escaping device, based on the same inventive concept, the device is applied to a vehicle, and the vehicle comprises: a first clutch and a second clutch; the device comprises:
the data receiving unit is used for receiving preset conditions of each basic parameter output by the vehicle and corresponding to each basic parameter;
the judging unit is used for judging whether the basic parameters accord with preset conditions corresponding to the basic parameters;
a control unit; if yes, the first clutch is controlled to transmit a first torque value of the engine, and a second gear synchronizer is combined to output the first torque value of the engine to a wheel end;
wherein the first clutch accelerates a flow of a coolant to accelerate cooling of the second clutch under control of the first clutch to transmit a first torque value of the engine.
In this embodiment, after receiving preset conditions corresponding to each basic parameter output by the vehicle, the data receiving unit sends each basic parameter and the corresponding preset condition to the judging unit, the judging unit judges whether each basic parameter meets the preset condition corresponding to the basic parameter, and when the basic parameter meets the preset condition, the control unit controls the first clutch to rotate so as to output torque.
The first clutch is controlled to transmit a first torque value of the engine by judging whether the basic parameters meet preset conditions, and after the second gear synchronizer is combined, the first torque value of the engine is transmitted to a wheel end to achieve escaping; and when the first clutch transmits a first torque value of the engine, the engine can drive the first clutch to rotate at a high speed so as to accelerate the flow of cooling liquid, thereby cooling the second clutch and protecting the second clutch.
Example III
Based on the same inventive concept, another embodiment of the present application provides a dual clutch vehicle escaping system, the system is applied in a vehicle, and the vehicle comprises: the second embodiment of the application provides a device for releasing a double clutch vehicle.
Example IV
A vehicle comprises a double clutch vehicle escaping device described in the second embodiment of the application or a double clutch vehicle escaping system provided in the third embodiment of the application.
Referring to fig. 1, the vehicle is operated from a functional ready state to a stranded state: when the vehicle is in a functional ready state, there may be a case where there is a difference in rotational speed of the driving wheel between the two front wheels, or a case where there is a difference in rotational speed of the driving wheel between the two rear wheels, for example, in a case where the driving wheel is a front wheel of an automobile, one front wheel of the automobile slips, the other front wheel of the automobile is not slipped and is in a stationary state, and there is a difference in rotational speed of the driving wheel between the two front wheels.
In the first stage, if the rotation speed difference of the driving wheel is smaller than the preset first rotation speed difference threshold and larger than the preset second rotation speed difference threshold, the vehicle speed is 0, the vehicle gear is D gear, and the accelerator is 0, the current vehicle is judged to be in a function ready state, namely, the state that the second clutch is far not ablated at the moment is represented, at the moment, the engine is controlled to output a second torque value, the first clutch is controlled to transmit the second torque value of the engine to the transmission, the first clutch rotates at a low speed when transmitting the second torque value of the engine, the second clutch is used for executing cooling operation, and the second torque value of the engine is transmitted to the wheel end by combining the second gear synchronizer.
And in the second stage, if the vehicle is continuously started and is in a escaping state, the rotation speed difference of the driving wheel is continuously increased, the second clutch is slipped and continuously heated, when the rotation speed difference of the driving wheel is larger than a preset first rotation speed difference threshold value, the gear of the vehicle is D gear, the accelerator is larger than a preset accelerator threshold value, and the temperature of the second clutch is larger than or equal to a preset first temperature threshold value, the current vehicle is judged to be in a stranded state, namely, the second clutch is characterized to be in a state to be ablated at the moment, the second clutch is protected, the engine is controlled to output a first torque value, and the rotation speed of the first clutch is increased because the first torque value is larger than the second torque value, so that the flow of cooling liquid can be accelerated more quickly, the second clutch is cooled more quickly, and meanwhile, the engine outputs a larger first torque value to help the vehicle to realize escaping.
In the third stage, when the first clutch is controlled to rotate continuously, the following two conditions can occur: 1. if the first clutch rotates to a speed greater than a preset speed threshold and the temperature of the second clutch is less than or equal to a preset second temperature threshold, the vehicle is characterized as being in a escaping state at the moment, the second clutch is cooled to a safe temperature, and the safe temperature means that the second clutch cannot be ablated and is in a normal state. 2. And if the temperature of the second clutch is larger than a preset third temperature threshold value, the second clutch temperature is represented to reach a limit temperature, and the double clutch vehicle escaping method is failed at the limit temperature, so that the first clutch is directly disconnected from the position between the engine and the transmission to stop transmitting the torque output by the engine.
For the device embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference is made to the description of the method embodiments for relevant points.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
It will be apparent to those skilled in the art that embodiments of the present application may be provided as a method, apparatus, or computer program product. Accordingly, the present embodiments may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present embodiments have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the present application.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.
The above description is provided in detail of a method, a device, a system and a vehicle for releasing a dual clutch vehicle, and specific examples are applied to illustrate the principles and embodiments of the present application, and the above examples are only used to help understand the method and core ideas of the present application; meanwhile, as those skilled in the art will have modifications in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.
Claims (8)
1. A method for releasing a double clutch vehicle, wherein the method is applied to a vehicle, and the vehicle comprises: a first clutch and a second clutch; the method comprises the following steps:
receiving preset conditions corresponding to basic parameters output by the vehicle, wherein the basic parameters comprise a driving wheel rotating speed difference, a gear, an accelerator and a second clutch temperature;
when the rotation speed difference of the driving wheel is larger than a preset first rotation speed difference threshold value, the gear is D gear, the accelerator is larger than a preset accelerator threshold value, and the temperature of the second clutch is larger than or equal to a preset first temperature threshold value, the first clutch is controlled to transmit a first torque value of an engine, and a second gear synchronizer is combined to output the first torque value of the engine to a wheel end;
wherein the first clutch accelerates a flow of a coolant to accelerate cooling of the second clutch when the first clutch transmits a first torque value of the engine.
2. The method of claim 1, wherein the base parameters further comprise: vehicle speed; the method further comprises the steps of:
when the rotation speed difference of the driving wheels is larger than a preset second rotation speed difference threshold value and smaller than the preset first rotation speed difference threshold value, the vehicle speed is 0km/h, the gear is a D gear, the accelerator is in an initial state, determining that the vehicle is in a function preparation state, controlling the first clutch to transmit a second torque value of the engine, and simultaneously outputting the second torque value of the engine to a wheel end in combination with the second gear synchronizer;
wherein the second torque value is less than the first torque value.
3. The method of claim 2, wherein the first clutch accelerates a flow of coolant to accelerate cooling of the second clutch with the first clutch transmitting a first torque value of the engine, further comprising:
when the vehicle speed is greater than a preset speed threshold value and the temperature of the second clutch is less than or equal to a preset second temperature threshold value, the vehicle is determined to be in a escaping state, and the first clutch is controlled to be disconnected from between the engine and the transmission so as to stop transmitting the torque output by the engine; wherein the preset second temperature threshold is less than the preset first temperature threshold.
4. The method of claim 2, wherein the first clutch accelerates a flow of coolant to accelerate cooling of the second clutch with the first clutch transmitting a first torque value of the engine, further comprising:
when the temperature of the second clutch is greater than or equal to a preset third temperature threshold value, the first clutch is controlled to be disconnected from the engine and the transmission so as to stop transmitting the torque output by the engine; wherein the preset third temperature threshold is greater than the preset first temperature threshold.
5. The method according to claim 1, further comprising, prior to receiving the preset conditions for each basic parameter of the vehicle output corresponding to each basic parameter:
and detecting the temperature of the second clutch in real time through a temperature sensor.
6. A dual clutch vehicle override device for use in a vehicle, the vehicle comprising: a first clutch and a second clutch; the device comprises:
the data receiving unit is used for receiving preset conditions of each basic parameter output by the vehicle and corresponding to each basic parameter, wherein the basic parameters comprise a driving wheel rotating speed difference, a gear, an accelerator and a second clutch temperature;
the control unit is used for controlling the first clutch to transmit a first torque value of an engine when the rotation speed difference of the driving wheels is larger than a preset first rotation speed difference threshold value, the gear is a D gear, the accelerator is larger than a preset accelerator threshold value and the temperature of the second clutch is larger than or equal to a preset first temperature threshold value, and simultaneously combining a second gear synchronizer to output the first torque value of the engine to a wheel end;
wherein the first clutch accelerates a flow of a coolant to accelerate cooling of the second clutch under control of the first clutch to transmit a first torque value of the engine.
7. A dual clutch vehicle override system for use in a vehicle, the vehicle comprising: a first clutch and a second clutch, the system comprising the apparatus of claim 6.
8. A vehicle comprising the apparatus of claim 6 or the system of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011074561.8A CN114321215B (en) | 2020-10-09 | 2020-10-09 | Double-clutch vehicle escaping method, device and system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011074561.8A CN114321215B (en) | 2020-10-09 | 2020-10-09 | Double-clutch vehicle escaping method, device and system and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114321215A CN114321215A (en) | 2022-04-12 |
| CN114321215B true CN114321215B (en) | 2024-04-05 |
Family
ID=81031802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011074561.8A Active CN114321215B (en) | 2020-10-09 | 2020-10-09 | Double-clutch vehicle escaping method, device and system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114321215B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10308502A1 (en) * | 2003-02-26 | 2004-09-30 | Volkswagen Ag | Control of the automatic transmission of a road vehicle transmission uses an electro hydraulic control system |
| CN102418782A (en) * | 2010-09-28 | 2012-04-18 | 通用汽车环球科技运作有限责任公司 | Method of cooling a dual clutch transmission |
| CN102606719A (en) * | 2012-03-09 | 2012-07-25 | 重庆青山工业有限责任公司 | Cooling loop system of dual-clutch gearbox |
| CN106641233A (en) * | 2017-02-21 | 2017-05-10 | 周盈裕 | Dual-clutch transmission with magnetic torque adjustor |
| CN108363826A (en) * | 2017-12-25 | 2018-08-03 | 博格华纳汽车零部件(宁波)有限公司 | Wet-type dual-clutch slides rub limiting condition and cooling flow requirement analysis method |
-
2020
- 2020-10-09 CN CN202011074561.8A patent/CN114321215B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10308502A1 (en) * | 2003-02-26 | 2004-09-30 | Volkswagen Ag | Control of the automatic transmission of a road vehicle transmission uses an electro hydraulic control system |
| CN102418782A (en) * | 2010-09-28 | 2012-04-18 | 通用汽车环球科技运作有限责任公司 | Method of cooling a dual clutch transmission |
| CN102606719A (en) * | 2012-03-09 | 2012-07-25 | 重庆青山工业有限责任公司 | Cooling loop system of dual-clutch gearbox |
| CN106641233A (en) * | 2017-02-21 | 2017-05-10 | 周盈裕 | Dual-clutch transmission with magnetic torque adjustor |
| CN108363826A (en) * | 2017-12-25 | 2018-08-03 | 博格华纳汽车零部件(宁波)有限公司 | Wet-type dual-clutch slides rub limiting condition and cooling flow requirement analysis method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114321215A (en) | 2022-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4702595B2 (en) | Clutch protection system | |
| JP6295998B2 (en) | Internal combustion engine restart control device | |
| CA2515880C (en) | Acceleration launch strategy for an electromechanical automatic transmission | |
| JP5254366B2 (en) | Method and apparatus for automatic or semi-automatic selection of a good starting gear of a vehicle | |
| CN109322990B (en) | Sliding working condition torque control method | |
| US20160082967A1 (en) | Method and system for preventing overheating of clutch by means of forcible creeping | |
| JP2013208944A (en) | Hybrid vehicle | |
| KR101704274B1 (en) | Engine torque control method for vehicle | |
| JP2018159419A (en) | Vehicular control apparatus | |
| US8257224B2 (en) | Method for controlling an inching procedure of a motor vehicle | |
| CN114321215B (en) | Double-clutch vehicle escaping method, device and system and vehicle | |
| JP3623357B2 (en) | Vehicle drive control device | |
| KR101664705B1 (en) | Control method for vehicle | |
| CN106594113A (en) | Method for controlling clutch of vehicle | |
| CN106523688A (en) | Method for releasing creep torque control of vehicle before stop | |
| CN112065982B (en) | Vehicle gear shifting control method and device, vehicle and medium | |
| KR20160035937A (en) | System and method for controlling shif of hybrid vehicle | |
| CN104417534A (en) | A method for limiting the amount of energy dissipated in a friction clutch during engagement of the clutch | |
| GB2514839A (en) | Clutch pedal torque limiting | |
| JP2006336807A (en) | Clutch control device and clutch control method | |
| JP2020001502A (en) | Gear change support method of hybrid automobile and device | |
| CN114198430B (en) | Clutch engagement method, device, equipment and medium | |
| KR102074746B1 (en) | Apparatus and method for controlling engine clutch of hybrid electric vehicle | |
| JP3657416B2 (en) | Vehicle drive control device | |
| EP3204274B1 (en) | A method to control a powertrain in a vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |