阅读说明：本技术 一种离合器接触点读取方法及系统 (Clutch contact point reading method and system ) 是由 廖楚男 陈绪强 卢贵兵 于 2021-07-07 设计创作，主要内容包括：本公开提供了一种离合器接触点读取方法及系统,如果离合器的自学习值为零,离合器自学习不通过,读取到的离合离合器接触点数为零；如果离合器的自学习值为1,离合自学习通过,读取到的离合值触点为最终的读取的离合触点值；本公开能够有效的控制自动变速器的换挡时的动力结合及消除顿挫感,使得换挡过程应迅速地完成,减少了由于换挡时间过长而使摩擦元件的磨损增加和减少换挡期间输入功率低或中断而引起的速度损失；使得换挡过程缓慢平稳过渡,车速过渡圆滑,没有过高的瞬时加速度或瞬时减速度,避免了颠簸和冲击,提高了乘坐舒适性,减小了传动系的冲击载荷。(The invention provides a method and a system for reading a contact point of a clutch, wherein if a self-learning value of the clutch is zero, the self-learning of the clutch does not pass, and the number of the read contact points of the clutch is zero; if the self-learning value of the clutch is 1, the clutch self-learning passes, and the read clutch value contact is the final read clutch contact value; the automatic transmission can effectively control the power combination and eliminate the jerking sense during the gear shifting of the automatic transmission, so that the gear shifting process is rapidly completed, the abrasion of a friction element is increased due to overlong gear shifting time, and the speed loss caused by low or interrupted input power during the gear shifting is reduced; the gear shifting process is slowly and stably transited, the vehicle speed is transited smoothly, and excessive instantaneous acceleration or instantaneous deceleration does not exist, so that jolt and impact are avoided, the riding comfort is improved, and the impact load of a transmission system is reduced.)

1. A clutch contact point reading method, characterized by: the method comprises the following steps:

if the self-learning value of the clutch is zero, the self-learning of the clutch is not passed, and the number of the contact points of the clutch is zero;

if the self-learning value of the clutch is 1, the clutch self-learning is passed, and the read clutch value contact is the final read clutch contact value.

2. The clutch contact point reading method according to claim 1, characterized in that:

and if the self-learning value of the clutch is 1, and the read clutch contact point value is smaller than or equal to the first threshold value, the finally obtained clutch contact point number is zero.

3. The clutch contact point reading method according to claim 1, characterized in that:

and if the self-learning value of the clutch is 1, and the read clutch contact point value is greater than or equal to the second threshold value, the finally obtained clutch contact point number is zero.

4. The clutch contact point reading method according to claim 1, characterized in that:

and if the self-learning value of the clutch is 1, and the read clutch contact value is greater than or equal to the first threshold value, the read clutch contact is equal to the finally read clutch contact value.

5. The clutch contact point reading method according to claim 1, characterized in that:

and if the self-learning value of the clutch is 1, and the read clutch contact value is less than or equal to the second threshold value, the read clutch contact is equal to the finally read clutch contact value.

6. The clutch contact point reading method according to claim 2 or 4, characterized in that:

the first threshold value is 0.2.

7. The clutch contact point reading method according to claim 3 or 5, characterized in that:

the second threshold value is 0.9.

8. A clutch contact point reading system, comprising: the method comprises the following steps:

a first read determination module configured to: if the self-learning value of the clutch is zero, the self-learning of the clutch is not passed, and the number of the contact points of the clutch is zero;

a second read determination module configured to: if the self-learning value of the clutch is 1, the clutch self-learning is passed, and the read clutch value contact is the final read clutch contact value.

9. A computer-readable storage medium, on which a program is stored, which, when being executed by a processor, carries out the steps of the clutch contact point reading method according to any one of claims 1 to 7.

10. An electronic device comprising a memory, a processor and a program stored on the memory and executable on the processor, wherein the processor implements the steps of the clutch contact reading method according to any one of claims 1 to 7 when executing the program.

Technical Field

The disclosure relates to the technical field of clutch contact reading, in particular to a method and a system for reading a clutch contact.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

With the increasing emphasis on environmental pollution, the concentration of CO or HC compounds in the exhaust gas emitted is high when the engine is operated at idle and high speed. The application of the automatic transmission can ensure that the engine always runs in the range of the economical rotating speed, namely the rotating speed range with less pollutant emission, thereby reducing the emission pollution. Meanwhile, for an automatic transmission with an automatic clutch device, reasonable control of gear shifting and clutch combination has very important significance for traditional automobiles and new energy hybrid vehicles.

The inventor finds that automatic speed change can realize automatic gear shift by adopting hydraulic operation or electronic control through system design, when a gear shift lever is changed, a slide valve of hydraulic control is operated substantially, and a whole vehicle automatically meets the use requirements.

Disclosure of Invention

In order to solve the disadvantages of the prior art, the present disclosure provides a method and a system for reading a clutch contact point, which can effectively control power coupling and eliminate jerking during shifting of an automatic transmission, so that a shifting process is rapidly completed, increase in friction element wear due to an excessively long shifting time is reduced, and speed loss caused by low or interrupted input power during shifting is reduced; the gear shifting process is slowly and stably transited, the vehicle speed is transited smoothly, and excessive instantaneous acceleration or instantaneous deceleration does not exist, so that jolt and impact are avoided, the riding comfort is improved, and the impact load of a transmission system is reduced.

In order to achieve the purpose, the following technical scheme is adopted in the disclosure:

a first aspect of the present disclosure provides a clutch contact point reading method.

A clutch contact point reading method comprising the process of:

if the self-learning value of the clutch is zero, the self-learning of the clutch is not passed, and the number of the contact points of the clutch is zero;

if the self-learning value of the clutch is 1, the clutch self-learning is passed, and the read clutch value contact is the final read clutch contact value.

Further, if the self-learning value of the clutch is 1, and the read clutch contact point value is smaller than or equal to the first threshold value, the finally obtained clutch contact point value is zero.

Further, if the self-learning value of the clutch is 1, and the read clutch contact point value is greater than or equal to the second threshold value, the finally obtained clutch contact point value is zero.

Further, if the self-learning value of the clutch is 1, and the read clutch contact value is greater than or equal to the first threshold value, the read clutch contact is equal to the finally read clutch contact value.

Further, if the self-learning value of the clutch is 1, and the read clutch contact value is smaller than or equal to the second threshold value, the read clutch contact is equal to the finally read clutch contact value.

Further, the first threshold is 0.2.

Further, the second threshold is 0.9.

A second aspect of the present disclosure provides a clutch contact point reading system.

A clutch contact point reading system comprising:

a first read determination module configured to: if the self-learning value of the clutch is zero, the self-learning of the clutch is not passed, and the number of the contact points of the clutch is zero;

a second read determination module configured to: if the self-learning value of the clutch is 1, the clutch self-learning is passed, and the read clutch value contact is the final read clutch contact value.

A third aspect of the present disclosure provides a computer-readable storage medium having a program stored thereon, the program, when executed by a processor, implementing the steps in the clutch contact point reading method according to the first aspect of the present disclosure.

A fourth aspect of the present disclosure provides an electronic device, including a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor implements the steps of the clutch contact point reading method according to the first aspect of the present disclosure when executing the program.

Compared with the prior art, the beneficial effect of this disclosure is:

1. the method, the system, the medium or the electronic equipment have the characteristics of accurate reading, quick power combination reaction, high transmission efficiency and the like, the optimal conditions of power combination such as clutch and the like are effectively and quickly provided for the reading of the clutch contact point, and the smoothness of the subsequent automatic transmission gear shifting process is ensured, namely the gear shifting process can be stably carried out without jolt or impact.

2. The method, system, medium, or electronic device of the present disclosure ensures that clutch power is completed quickly, reduces increased wear on friction elements due to excessive clutch contact time, and reduces speed loss due to low or interrupted input power during clutch engagement.

3. The method, the system, the medium or the electronic equipment disclosed by the disclosure enable the clutch power combination process to be transited slowly and stably as much as possible, so that the vehicle speed is transited smoothly, excessive instantaneous acceleration or jerking speed is avoided, jolt and impact are avoided, the riding comfort is improved, the impact load of a transmission system is reduced, and the service life of parts is prolonged.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.

Fig. 1 is a schematic flowchart of a clutch contact point reading method provided in embodiment 1 of the present disclosure.

Detailed Description

The present disclosure is further described with reference to the following drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict.

Example 1:

as shown in fig. 1, embodiment 1 of the present disclosure provides a clutch contact point reading method, including the following processes:

setting: adp-read-21 is the read clutch contact point (0-1) as an observed quantity; clu touch st is the clutch contact point of final use; and the Get adp-flag indicates whether the self-learning value is written, if the self-learning value is set to be 1, the self-learning value is written, if the self-learning value is set to be 0, the self-learning value is not written, and if the self-learning value is not written, an initial value is needed.

The logic of reading is as follows:

If(！Get_adp_flag){clu_touch_st1＝0；}

Else{clu_touch_st 1＝Adp_read_21；}

If(clu_touch_st 1<＝0.2||clu_touch_st 1>＝0.9){clu_touch_st＝0；}

Else{clu_touch_st＝clu_touch_st 1；}

specifically, the method comprises the following steps:

if the Get _ adp _ flag is 0 and the clutch self-learning does not pass, the Get _ adp _ flag is 0, and when the value is inverted, the value is set to be 1, the number of read clutch contact points is 0, namely { clu touch stl is 0 };

otherwise, Get _ Adp _ flag is 1, the clutch self-learning passes, and the read clutch value contact clu touch st 1 is equal to the final read clutch value Adp read _ 21;

in the self-learning pass program, the following are further specified:

(1) if Get _ adp _ flag is 1, the clutch self-learning passes, the read clutch contact value clu touch st 1 is less than or equal to 0.2 or clu touch st 1 is greater than or equal to 0.9, the number of the clutch contact points read finally is 0, namely { clu touch stl is 0}, and therefore the read clutch contact value cannot be too small or too large during data processing.

(2) If the Get _ Adp _ flag is equal to 1, the clutch self-learning passes, the read clutch contact value clu touch st 1 is not less than 0.2 or the read clutch contact value clu touch st 1 is not more than 0.2, the read clutch contact value touch st 1 is equal to Adp read _21, and the read clutch contact value contact is equal to the final read clutch contact value.

Example 2:

an embodiment 2 of the present disclosure provides a clutch contact point reading system, including:

a first read determination module configured to: if the self-learning value of the clutch is zero, the self-learning of the clutch is not passed, and the number of the contact points of the clutch is zero;

a second read determination module configured to: if the self-learning value of the clutch is 1, the clutch self-learning is passed, and the read clutch value contact is the final read clutch contact value.

The working method of the system is the same as the clutch contact point reading method provided in embodiment 1, and details are not repeated here.

Example 3:

the embodiment 3 of the present disclosure provides a computer-readable storage medium on which a program is stored, which when executed by a processor, implements the steps in the clutch contact point reading method according to embodiment 1 of the present disclosure.

Example 4:

the embodiment 4 of the present disclosure provides an electronic device, which includes a memory, a processor, and a program stored in the memory and executable on the processor, and when the processor executes the program, the steps in the method for reading the contact point of the clutch according to the embodiment 1 of the present disclosure are implemented.

As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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 apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, 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.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.

The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.