CN103256322A - Control method and device for automatic catch clutch - Google Patents
Control method and device for automatic catch clutch Download PDFInfo
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- CN103256322A CN103256322A CN2013101753757A CN201310175375A CN103256322A CN 103256322 A CN103256322 A CN 103256322A CN 2013101753757 A CN2013101753757 A CN 2013101753757A CN 201310175375 A CN201310175375 A CN 201310175375A CN 103256322 A CN103256322 A CN 103256322A
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- clutch
- clutch pressure
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- idling
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Abstract
The invention relates to a control method and device for an automatic catch clutch. The control method for the automatic catch clutch comprises the steps that a detector determines whether a car is in a starting state or not; when an accelerator of the car in the starting state is loosened, a controller controls the clutch to enable the pressure of the clutch to return to zero instantly; after the pressure of the clutch returns to zero instantly, the controller controls the pressure of the clutch to increase gradually in a closed-loop mode to enable the pressure of the clutch to meet the requirement of idling-speed travel. According to the control method and device for the automatic catch clutch, when the accelerator is loosened in the starting process, the controller controls the clutch to enable the pressure of the clutch to return to zero instantly, so that the process that the pressure of the clutch gradually decreases is eliminated, and the problem that the pressure of the clutch decreases quickly or slowly is solved. After the pressure of the clutch returns to zero instantly, the controller controls the pressure of the clutch to increase gradually in the closed-loop mode to enable the pressure of the clutch to meet the requirement of idling-speed travel.
Description
Technical field
The present invention relates to a kind of controlling method and device of clutch, particularly relate to method and device that a kind of clutch that is suitable for automobile that throttle in the starting-up process is unclamped is suddenly controlled.
Background technique
Automatic catch automobile is in starting-up process, if unclamp throttle suddenly, because Engine torque sharply reduces, clutch will be from the starting recovering state to the idling travelling state.For wet clutch, when auto idle speed travelled, wet clutch was in sliding wear (half-clutch) state, and therefore, clutch becomes the process that idling is travelled from the starting state, is the process that clutch pressure reduces.Owing to be subjected to the restriction of solenoid valve characteristic, the process that pressure reduces is difficult to realize closed loop control at present.This has brought big difficulty also for the control that reduces of clutch pressure, if the excessive velocities that clutch pressure reduces, the goal pressure that clutch pressure is travelled less than idling, cause the idling travelling speed too small, do not meet design requirement, even it is too small clutch pressure to occur, is not enough to transmit moment of torsion, and vehicle is run out of steam; Otherwise slow excessively if clutch pressure reduces speed, it is slow excessively easily to make the clutch load reduce speed, yet this moment, Engine torque sharply descended, even negative torque occurs, and load is crossed senior general and caused engine speed to cross low and breathing heavily, even flame-out.
Summary of the invention
The purpose of the embodiment of the invention provides a kind of controlling method and device of automatic catch clutch, solves the clutch pressure described in the starting-up process and reduces too fast or slow excessively problem.
To achieve these goals, the invention provides following technological scheme:
A kind of controlling method of automatic catch clutch, this method comprises:
Step 1: detector determines whether automobile is in the starting state;
Step 2: when the gas that is in the starting state unclamped, controller is controlled described clutch made zero clutch pressure moment;
Step 3: after described clutch pressure moment made zero, the described clutch pressure of controller closed loop control increases gradually made clutch pressure reach the requirement that idling is travelled.
Preferably, described clutch is wet clutch.
Preferably, in described step 3, the described clutch pressure of controller closed loop control increases gradually to be made clutch reach the travel speed of a motor vehicle of described automobile when requiring of idling to be not less than the speed of a motor vehicle of idling when travelling.
Preferably, described controller is transmission control unit or car running computer.
The present invention also provides a kind of control gear that is applicable to the automatic catch clutch of said method, and this device comprises:
Detector is used for determining whether automobile is in the starting state;
Controller is used for when the gas that is in the starting state unclamps, and controller is controlled described clutch makes zero clutch pressure moment; And after described clutch pressure moment made zero, the described clutch pressure of controller closed loop control increases gradually made clutch pressure reach the requirement that idling is travelled.Preferably, described clutch is wet clutch.Described controller is transmission control unit or car running computer.
There is following technique effect at least in the embodiment of the invention:
1) the present invention is when throttle unclamps in starting-up process, and controller is controlled described clutch makes zero clutch pressure moment, thereby has eliminated the process that clutch pressure reduces gradually, has avoided clutch pressure to reduce too fast or slow excessively problem; After described clutch pressure moment made zero, the described clutch pressure of controller closed loop control increases gradually made clutch pressure reach the requirement that idling is travelled.
2) the described clutch pressure of controller closed loop control of the present invention increases gradually and makes clutch reach the travel speed of a motor vehicle of described automobile when requiring of idling, be not less than the speed of a motor vehicle of idling when travelling, thus the speed of a motor vehicle when having avoided the speed of a motor vehicle of automobile to be lower than idling and the motor acting step that causes.
Description of drawings
Fig. 1 be exemplary embodiment of the present clutch pressure, brake signal, the speed of a motor vehicle, gas pedal aperture, motor and speed changer conjugation grade respectively with the time relation schematic representation;
Fig. 1 is made up of Fig. 1-a, Fig. 1-b, Fig. 1-c, Fig. 1-d and Fig. 1-e;
Particularly, among Fig. 1-a, abscissa represents the time, and y coordinate represents clutch state, the description that particular content vide infra;
Among Fig. 1-b, abscissa represents the time, and y coordinate represents the folding degree of gas pedal;
Among Fig. 1-c, abscissa represents the time, and y coordinate represents brake signal;
Among Fig. 1-d, abscissa represents the time, and y coordinate represents the speed of a motor vehicle;
Among Fig. 1-e, abscissa represents the time, and y coordinate represents the clutch pressure under the PID closed loop control.
Embodiment
For the purpose, technological scheme and the advantage that make the embodiment of the invention is clearer, below in conjunction with accompanying drawing specific embodiment is described in detail.
A kind of controlling method of automatic catch clutch, this method comprises:
Step 1: detector determines whether automobile is in the starting state;
Step 2: when the gas that is in the starting state unclamped, controller is controlled described clutch made zero clutch pressure moment;
Step 3: after described clutch pressure moment made zero, the described clutch pressure of controller closed loop control increases gradually made clutch pressure reach the requirement that idling is travelled.When the present invention unclamped at described throttle, controller is controlled described clutch made zero clutch pressure moment, thereby has eliminated the process that clutch pressure reduces gradually, has avoided clutch pressure to reduce too fast or slow excessively problem; After described clutch pressure moment made zero, the described clutch pressure of controller closed loop control increases gradually made clutch pressure reach the requirement that idling is travelled.
In embodiments of the present invention, the wet clutch with automatic transmission illustrates process of the present invention.Fig. 1 showed clutch pressure, brake signal, the speed of a motor vehicle, gas pedal aperture, motor and speed changer conjugation grade respectively with time relation.
As shown in Figure 1:
Stage A: clutch is opened (open) state
The driver slams brake, and automobile is parked in the original place, and this moment, clutch pressure was zero.
Stage B: clutch idling (creep) state that travels
Driver's releasing of brake, but do not step on the gas, clutch pressure begins to raise, until there being moment of torsion to be delivered to speed changer.In the present embodiment, controller is the TCU(control unit for automatic shift), detector is integrated among the described TCU as a unit, and in other embodiments, described controller also can be car running computer.TCU serves as the control target with idling speed of operation (as 4kph), in the clutch pressure curve shown in Fig. 1-e, controller carries out PID(Proportion Integration Differentiation to clutch pressure) closed loop control (refer to as controlled output turn back in a certain way as control input end, and input end is applied a kind of control relation of control influence), automobile is creeped with the target vehicle speed of 4kph.
Stage C: clutch starting (take-off) state
The driver steps on the throttle, and TCU receives throttle signal, increases clutch pressure, and to transmit more Engine torque, this moment, clutch entered the starting stage.The starting-up process of clutch is the process of clutch from sliding wear to complete locking, but when starting-up process is still uncompleted, if the driver unclamps throttle suddenly, Engine torque will sharply reduce, TCU need reduce clutch pressure, reducing the load of motor, and the speed of a motor vehicle is reduced, get back to the idling driving cycle.
This moment is too fast if clutch pressure reduces, and easily makes clutch pressure less than the idling goal pressure of travelling, and makes speed too small, as not reaching 4kph in the present embodiment, can not satisfy the idling requirement of travelling; Otherwise if clutch pressure reduced slowly, it is slow that the clutch load was reduced, and makes engine speed cross low and breathing heavily influence travelling comfort, also may cause flame-out in the time of seriously.Reduce the too fast or slow excessively situation of process for fear of clutch pressure and take place, the present invention designs stage D.
Stage D: the transition state that clutch is opened fully (roll-out)
The present invention lays down clutch pressure earlier fully, gets back to the state of opening.This moment, automobile relied on inertia, in the blink that clutch is thrown off fully, still can continue to travel.
Stage E: clutch idling (creep) state that travels
After clutch was opened fully, TCU can open the operating mode in when brake according to the stage A souththern pine, by the PID closed loop control, makes clutch be operated in the idling driving cycle, and as can be seen, the clutch pressure when stage B and stage E is basic identical on Fig. 1-a and Fig. 1-e.
Shown in Fig. 1-d, when stage E, TCU controls described clutch pressure and increases gradually and make clutch reach travel the speed of a motor vehicle when requiring of idling, is not less than the speed of a motor vehicle of idling when travelling.
By above-mentioned narration to Fig. 1 as can be known, the present invention opened clutch earlier before clutch becomes the idling travelling state from the starting state fully, made clutch carry out the transition to the idling travelling state via full open position then.
As from the foregoing, the embodiment of the invention has following advantage:
1) the present invention is when throttle unclamps in starting-up process, and controller is controlled described clutch makes zero clutch pressure moment, thereby has eliminated the process that clutch pressure reduces gradually, has avoided clutch pressure to reduce too fast or slow excessively problem; After described clutch pressure moment made zero, the described clutch pressure of controller closed loop control increases gradually made clutch pressure reach the requirement that idling is travelled.
2) the described clutch pressure of controller closed loop control of the present invention increases gradually and makes clutch reach the travel speed of a motor vehicle of described automobile when requiring of idling, be not less than the speed of a motor vehicle of idling when travelling, thus the speed of a motor vehicle when having avoided the speed of a motor vehicle of automobile to be lower than idling and the motor acting step that causes.
3) the present invention becomes the continous curve formula process that motor and speed changer separate gradually into a kind of step type, non-continuity curvilinear style process.
4) prior art is that clutch pressure is reduced gradually, and the present invention reduces clutch pressure earlier and then increases, thereby has changed the working procedure of clutch in essence.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. the controlling method of an automatic catch clutch is characterized in that, this method comprises:
Step 1: detector determines whether automobile is in the starting state;
Step 2: when the gas that is in the starting state unclamped, controller is controlled described clutch made zero clutch pressure moment;
Step 3: after described clutch pressure moment made zero, the described clutch pressure of controller closed loop control increases gradually made clutch pressure reach the requirement that idling is travelled.
2. method according to claim 1 is characterized in that,
Described clutch is wet clutch.
3. method according to claim 1 and 2 is characterized in that,
In described step 3, the described clutch pressure of controller closed loop control increases gradually to be made clutch pressure reach travel the speed of a motor vehicle when requiring of idling to be not less than the speed of a motor vehicle of idling when travelling.
4. according to the described method of one of claim 1-3, it is characterized in that,
Described controller is transmission control unit or car running computer.
5. control gear that is applicable to the automatic catch clutch of one of claim 1-4 described method is characterized in that this device comprises:
Detector is used for determining whether automobile is in the starting state;
Controller is used for when the gas that is in the starting state unclamps, and controller is controlled described clutch makes zero clutch pressure moment; And after described clutch pressure moment made zero, the described clutch pressure of controller closed loop control increases gradually made clutch pressure reach the requirement that idling is travelled.
6. device according to claim 5 is characterized in that,
Described clutch is wet clutch.
7. device according to claim 5 is characterized in that,
Described controller is transmission control unit or car running computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310175375.7A CN103256322B (en) | 2013-05-10 | 2013-05-10 | A kind of controlling method of automatic catch clutch and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310175375.7A CN103256322B (en) | 2013-05-10 | 2013-05-10 | A kind of controlling method of automatic catch clutch and device |
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| CN103256322A true CN103256322A (en) | 2013-08-21 |
| CN103256322B CN103256322B (en) | 2016-01-27 |
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| CN201310175375.7A Active CN103256322B (en) | 2013-05-10 | 2013-05-10 | A kind of controlling method of automatic catch clutch and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542016A (en) * | 2013-10-25 | 2014-01-29 | 天津同步动力科技有限公司 | Normally-opened clutch actuator mechanism and control system and control method |
| CN105736601A (en) * | 2016-03-02 | 2016-07-06 | 安徽江淮汽车股份有限公司 | Control method and system for clutch torque in initial creep stage of automobile |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5576224A (en) * | 1978-12-01 | 1980-06-09 | Nissan Motor Co Ltd | Start controller of automatic clutch |
| JPS6390443A (en) * | 1986-10-04 | 1988-04-21 | Daihatsu Motor Co Ltd | Method of controlling start clutch for vehicle automatic transmission |
| US5893438A (en) * | 1995-09-08 | 1999-04-13 | Honda Giken Kogyo Kabushiki Kaisha | Control device for lockup clutch |
| CN1572578A (en) * | 2003-05-23 | 2005-02-02 | 丰田自动车株式会社 | Start control device for vehicle |
| CN101631962A (en) * | 2007-03-20 | 2010-01-20 | 日产自动车株式会社 | Clutch control device, and clutch control method |
| CN102644680A (en) * | 2011-02-16 | 2012-08-22 | 上海紫成信息科技有限公司 | Control method for adjusting suction speed of clutch in automobile transmission system |
-
2013
- 2013-05-10 CN CN201310175375.7A patent/CN103256322B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5576224A (en) * | 1978-12-01 | 1980-06-09 | Nissan Motor Co Ltd | Start controller of automatic clutch |
| JPS6390443A (en) * | 1986-10-04 | 1988-04-21 | Daihatsu Motor Co Ltd | Method of controlling start clutch for vehicle automatic transmission |
| US5893438A (en) * | 1995-09-08 | 1999-04-13 | Honda Giken Kogyo Kabushiki Kaisha | Control device for lockup clutch |
| CN1572578A (en) * | 2003-05-23 | 2005-02-02 | 丰田自动车株式会社 | Start control device for vehicle |
| CN101631962A (en) * | 2007-03-20 | 2010-01-20 | 日产自动车株式会社 | Clutch control device, and clutch control method |
| CN102644680A (en) * | 2011-02-16 | 2012-08-22 | 上海紫成信息科技有限公司 | Control method for adjusting suction speed of clutch in automobile transmission system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103542016A (en) * | 2013-10-25 | 2014-01-29 | 天津同步动力科技有限公司 | Normally-opened clutch actuator mechanism and control system and control method |
| CN103542016B (en) * | 2013-10-25 | 2016-04-20 | 天津同步动力科技有限公司 | A kind of normally open clutch actuator and control system and controlling method |
| CN105736601A (en) * | 2016-03-02 | 2016-07-06 | 安徽江淮汽车股份有限公司 | Control method and system for clutch torque in initial creep stage of automobile |
| CN105736601B (en) * | 2016-03-02 | 2017-12-01 | 安徽江淮汽车集团股份有限公司 | A kind of automobile wriggling clutch moment of torque control method at initial stage and system |
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| Publication number | Publication date |
|---|---|
| CN103256322B (en) | 2016-01-27 |
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Effective date of registration: 20190401 Address after: 317000 east gate of Taizhou City, Zhejiang Province Co-patentee after: Zhejiang Geely Holding Group Co., Ltd. Patentee after: Zhejiang Geely Automobile Research Institute Co., Ltd. Address before: 311228 No. 206 Farmer's Second House in Linjiang Industrial Park, Xiaoshan District, Hangzhou City, Zhejiang Province Co-patentee before: Zhejiang Geely Automobile Research Institute Co., Ltd. Patentee before: Hangzhou Branch, Zhejiang Geely Automobile Research Institute Co., Ltd. Co-patentee before: Zhejiang Geely Holding Group Co., Ltd. |