CN103557245B - A kind of vehicular clutch guard method and protection device - Google Patents
A kind of vehicular clutch guard method and protection device Download PDFInfo
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- CN103557245B CN103557245B CN201310526945.2A CN201310526945A CN103557245B CN 103557245 B CN103557245 B CN 103557245B CN 201310526945 A CN201310526945 A CN 201310526945A CN 103557245 B CN103557245 B CN 103557245B
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Abstract
The invention discloses a kind of vehicular clutch guard method and protection device.The method includes: clutch state is monitored and judges step: utilizes the status information of monitoring means monitoring clutch and judges clutch state by ECU；The rotating speed of engine flywheel and the rotation speed monitoring step of transmission input shaft: be utilize monitoring means to monitor its rotary speed information equally, and obtained both speed discrepancies by ECU；Perform step: under clutch is in bonding state; by ECU, described speed discrepancy and speed discrepancy scope set in advance are compared; if judging, described speed discrepancy is beyond described speed discrepancy scope; the then separation of automatic control clutch; thus the friction plate of clutch is protected; ensure the safety of clutch, extend the service life of clutch.
Description
Technical field
The present invention relates to vehicular clutch protection field, particularly relate to a kind of vehicular clutch guard method and protection device.
Background technology
Clutch is the vitals of automobile dynamic system, is also rapid wear attrition component.Clutch is generally made up of friction plate, spring leaf, platen and power output shaft, it is arranged between electromotor and change speed gear box, it is used for the moment stored on engine flywheel is passed to change speed gear box, it is ensured that vehicle passes to the appropriate driving force of driving wheel and moment of torsion under different travel conditions.So the comfortableness of automobile and automobile use cost etc. are often caused very big impact by the performance quality of clutch.
Clutch is divided into three duties, does not namely step on the full gearing of clutch, and part steps on half gearing of clutch, and steps on not interlocking of clutch.Wherein, when clutch is in full gearing state, the platen on flywheel and friction plate are static friction, and frictional force is maximum, and the rotating speed of flywheel is substantially equal to the rotating speed of clutch power power shaft；When clutch is in half gearing state, for sliding friction between platen and the friction plate on flywheel, now the rotating speed of flywheel is more than the rotating speed of clutch power power shaft.
Under clutch half gearing state, particularly when the speed discrepancy of engine flywheel Yu clutch power power shaft is excessive, the sliding friction between platen and friction plate is likely to even directly result in friction plate so that friction plate frictional dissipation is too fast and damages.It addition, vehicle often runs into the operating mode of various complexity at driving process, for instance anxious acceleration, braking, climbing etc..Under these operating modes, the rotating speed of wheel can be subject to the impact of external force, thus having influence on the rotating speed of clutch power output shaft, eventually makes there is speed discrepancy between the flywheel of electromotor and clutch power power shaft.Even so under clutch gearing state entirely, still would be likely to occur speed discrepancy between flywheel and clutch power power shaft, equally, if this speed discrepancy is excessive can make that friction plate frictional dissipation is too fast even to be damaged equally, shorten clutch service life.
Summary of the invention
It is an object of the invention to provide the guard method of a kind of clutch and device, for, when speed discrepancy is excessive between engine flywheel and Clutch input shaft, clutch being protected automatically.
To achieve these goals, the invention provides a kind of vehicular clutch guard method, including:
Monitor and judge whether clutch is in bonding state, being, carrying out next step；Otherwise continue monitoring and judge；
The rotating speed of the rotating speed of the flywheel of monitoring electromotor and the power shaft of variator, draws the speed discrepancy between described flywheel and described power shaft；
Frictional dissipation setting speed difference scope according to described clutch internal friction sheet；
Judge that whether described speed discrepancy is beyond described speed discrepancy scope, be automatically control described clutch separation；Otherwise described clutch is not controlled.
Alternatively, the bonding state of described clutch includes the full gearing state of not let slip the clutch and half gearing state of part let slip the clutch.
Alternatively, described speed discrepancy ranges for 0-300rpm.
Present invention also offers a kind of vehicular clutch protection device, including
Monitoring means, for monitoring the clutch of vehicle, electromotor and variator, with the rotary speed information of the flywheel of the status information and described electromotor that obtain described clutch and the power shaft of described variator；
Performance element, for controlling separation and the combination of described clutch；
ECU, for storing the speed discrepancy scope between described flywheel and described power shaft；Calculate the speed discrepancy of described flywheel and described power shaft and compare with described speed discrepancy scope；Finally according to comparative result, described performance element is controlled.
Alternatively, described monitoring means includes pedal jaw opening sensor, to obtain the opening information of described clutch pedal.
Alternatively, described monitoring means includes the first speed probe for monitoring described Speed of Reaction Wheels, also includes the second speed probe for monitoring described power shaft rotating speed.
Alternatively, described performance element includes:
Pump clutch, the separation for described clutch provides pump pressure；
First electromagnetic valve, is used for controlling described pump clutch；
ECU controls the break-make of described pump clutch, the final separation controlling clutch or combination by controlling the first electromagnetic valve.
Alternatively, the frictional dissipation causing described clutch internal friction sheet within the scope of described speed discrepancy is within described friction plate tolerance range.
Alternatively, described speed discrepancy ranges for 0-300rpm.
At least there is following Advantageous Effects in the present invention:
Method for clutch protection of the present invention and protection device, it is possible to rotating speed between engine flywheel and Clutch input shaft is carried out monitoring automatically and contrast automatically；And when clutch is in bonding state; if judging, between engine flywheel and Clutch input shaft, speed discrepancy is excessive, then the separation of automatic control clutch, thus the friction plate of clutch is protected; ensure the safety of clutch, extend the service life of clutch.
Accompanying drawing explanation
Fig. 1 be in the embodiment of the present invention clutch protection device and the parts such as electromotor and variator with the use of after structural representation；
Fig. 2 is control circuit figure in the embodiment of the present invention；
Fig. 3 is the flow chart of method for clutch protection in the embodiment of the present invention；
Wherein:
1-electromotor, 1001-flywheel, 2-variator, 201-power shaft, 3-clutch pedal, 4-pedal jaw opening sensor, 5-the first speed probe, 6-the second speed probe, 7-the first electromagnetic valve, 8-the second electromagnetic valve, 9-the second wheel cylinder, 10-master cylinder, 11-the first wheel cylinder, 12-release yoke.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with accompanying drawing, specific embodiment is described in detail.
As Figure 1-Figure 2, embodiments provide a kind of vehicular clutch protection device, injury-free mainly for the protection of clutch when speed discrepancy is excessive between the flywheel 1001 and the power shaft 201 of variator 2 of electromotor 1.Protection device specifically can include monitoring means, performance element and ECU.
Electronic control component ECU, for corresponding data being collected and processing, is controlled corresponding device.And storage inside has the speed discrepancy scope between flywheel 1001 and power shaft 201, the frictional dissipation causing clutch internal friction sheet within the scope of this speed discrepancy is that namely frictional dissipation is negligible within friction plate tolerance range.Because clutch friction plate generally all has certain abrasive resistance, so above-mentioned speed discrepancy scope sets mostly in reference to the abrasive resistance of friction plate, specifically can pass through to test acquisition accordingly.This example is preferred speed discrepancy ranges between 0-300rpm.Certainly, in other alternatives, speed discrepancy can be set to other scopes being suitable for according to situations such as the materials of friction plate.
The monitoring means of the present invention may include that
Pedal jaw opening sensor 4, is generally arranged at vehicular clutch pedal 3 place, for clutch pedal 3 is monitored, to obtain pedal opening information, and pedal opening information is transferred to ECU, thus judging that clutch is in bonding state or released state.Wherein bonding state can include the full gearing state of not let slip the clutch and half gearing state of part let slip the clutch.
First speed probe 5, is generally arranged on the flywheel 1001 of electromotor 1, for monitoring the rotating speed of flywheel 1001, and the rotary speed information monitored is transferred to ECU.
Second speed probe 6, is generally arranged on the power shaft 201 of variator 2, for monitoring the rotating speed of power shaft 201, and the rotary speed information monitored is transferred to ECU.
In the present invention, performance element is for controlling the separation of clutch.Clutch controller can include clutch master cylinder the 10, first wheel cylinder 11 and the release yoke 12 that are sequentially connected with, and clutch master cylinder 10 is first applied to the first wheel cylinder 11, and the first wheel cylinder 11 controls clutch separation again through controlling release yoke 12.Clutch is usually by being arranged on release yoke 12 or the effect of the return spring of other correspondence positions is to return to bonding state after being in released state, and prior art is also realized by return spring and counter structure mostly, so repeat no more herein.
The break-make of clutch master cylinder 10 is to be controlled by the second coupled wheel cylinder 9.And the second wheel cylinder 9 can be divided into and automatically controlling and manual control.Shown in the control circuit figure of Fig. 2, wherein the circuit with switch S is automatic control circuit, and another is artificial control line road.For manual control, including the second wheel cylinder 9 can pass through the second electromagnetic valve 8 and be controlled, the pedal 3 that the second electromagnetic valve 8 is by clutch is controlled, and pedal is to be manipulated by driver.For automatically controlling, including the second wheel cylinder 9 can pass through the first electromagnetic valve 7 be controlled, and ECU be have can by switch S control the first electromagnetic valve 7.
The ECU of the present invention is while judging that clutch is in bonding state, start to collect the rotating speed of the rotating speed of flywheel 1001 and power shaft 201, and contrast obtains speed discrepancy, then again the speed discrepancy scope of this speed discrepancy Yu inner setting is compared, if beyond speed discrepancy scope and speed discrepancy excessive time, ECU then controls the first electromagnetic valve 7 and closes, and make the second wheel cylinder 9, master cylinder 10, first wheel cylinder 11 and release yoke 12 work successively, clutch internal friction sheet is finally made to separate with flywheel 1001, the friction plate of clutch is protected, ensure the safety of clutch, extend the service life of clutch.Certainly, if speed discrepancy is without departing from speed discrepancy scope, the first electromagnetic valve 7 is not then controlled by ECU, and clutch carries out manual control only by the method for operator pedal.Also, it should be noted by master cylinder the 10, first wheel cylinder 11 and release yoke 12 interact device that the separation to clutch is controlled or method all same as the prior art, so the work process being not described in detail between them herein.
The said apparatus of the present invention is only required to be and original Clutch Control is carried out only small change, just the function that automatic control clutch separates, combines can be realized, thus reducing the dry friction of clutch friction plate and engine flywheel, making car load service life, cost have improvement, overcoming conventional hydraulic to control clutch operating system cannot carry out, to clutch, the defect that accommodation causes being easily damaged according to complex working condition.Wherein, the platen of clutch is being arranged on flywheel, and friction plate is arranged on clutch plate.
As depicted in the flow chart of fig.3; device is protected based on above-mentioned clutch; present invention also offers a kind of vehicular clutch guard method, when being for protecting that speed discrepancy is excessive between rotating speed and the power shaft 201 of variator 2 of the flywheel 1001 of electromotor 1 equally, clutch is injury-free.Mainly may include steps of:
By the pedal opening information of pedal jaw opening sensor 4 monitoring, step 101, judges whether clutch is in bonding state, is that bonding state then carries out next step 102.Not being that bonding state then proceeds monitoring and judges, defined herein as step 101a, essence and step 101 are same processes.
Step 102, is monitored the rotating speed of flywheel 1001, and the rotary speed information monitored is transferred to ECU by the first speed probe 5；Monitored the rotating speed of power shaft 201 by the second speed probe 6, and the rotary speed information monitored is transferred to ECU.Then ECU calculates the speed discrepancy between the flywheel 1001 of electromotor 1 and the power shaft 201 of variator 2.And then step 103 is carried out.
Step 103, it is judged that whether speed discrepancy obtained above is beyond the speed discrepancy scope set, and speed discrepancy ranges for 0-300rpm.Go beyond the scope, carry out step 104.Without departing from then carrying out step 105.
Step 104; the Guan Bi of ECU automatic control switch S controls the first electromagnetic valve 7 and opens; first electromagnetic valve 7 makes the second wheel cylinder 9, master cylinder the 10, first wheel cylinder 11 and release yoke 12 work successively after opening; clutch internal friction sheet is finally made to separate with the flywheel 1001 of electromotor 1; the friction plate of clutch is protected; ensure the safety of clutch, extend the service life of clutch.
Step 105, ECU maintained switch S opens so that clutch is in bonding state.
It addition, can also include the step of setting speed difference scope between step 102 and step 103, the frictional dissipation causing clutch internal friction sheet within the scope of this speed discrepancy is that namely frictional dissipation is negligible within friction plate tolerance range.The obtaining value method of speed discrepancy scope is consistent with the method describing device section timesharing use, repeats no more herein.
Also, it should be noted no matter the present invention is device or method, it is all according to circumstances need to automatically control on the basis of manual control clutch in implementation process.So when the speed discrepancy occurred between flywheel 1001 and power shaft 201 scope poor more than setting speed; in order to protect clutch meeting without damage to make clutch separation; but due to interruption of power transmission after clutch separation; vehicle can stop or stopping working; now driver can again shift gears and restart, and guarantees that the speed discrepancy between flywheel 1001 and power shaft 201 is in allowed band as far as possible.Certainly, owing to clutch when focusing on protecting above-mentioned speed discrepancy excessive of the present invention is injury-free, as the clutch separation follow-up work with rear vehicle, not within the research range of the present invention, so repeating no more.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (8)
1. a vehicular clutch guard method, it is characterised in that including:
Monitor and judge whether clutch is in bonding state, being, carrying out next step；Otherwise continue monitoring and judge；
The rotating speed of the rotating speed of the flywheel (1001) of monitoring electromotor (1) and the power shaft (201) of variator (2), draws the speed discrepancy between described flywheel (1001) and described power shaft (201)；
Frictional dissipation setting speed difference scope according to described clutch internal friction sheet；
Judge that whether described speed discrepancy is beyond described speed discrepancy scope, be automatically control described clutch separation；Otherwise described clutch is not controlled.
2. vehicular clutch guard method according to claim 1, it is characterised in that the bonding state of described clutch includes the full state that partly interlocks interlocking state and part let slip the clutch (3) of not let slip the clutch (3).
3. vehicular clutch guard method according to claim 1 and 2, it is characterised in that described speed discrepancy ranges for 0-300rpm.
4. a vehicular clutch protection device, it is characterised in that including:
Monitoring means, for monitoring the clutch of vehicle, electromotor (1) and variator (2), with the rotary speed information of the flywheel (1001) of the status information and described electromotor (1) that obtain described clutch and the power shaft (201) of described variator (2)；
Performance element, for controlling separation and the combination of described clutch；
ECU, is used for storing the speed discrepancy scope between described flywheel (1001) and described power shaft (201), and the frictional dissipation causing described clutch internal friction sheet within the scope of described speed discrepancy is within described friction plate tolerance range；Calculate the speed discrepancy of described flywheel (1001) and described power shaft (201) and compare with described speed discrepancy scope；If beyond described speed discrepancy scope, then the described performance element of ECU control makes clutch separation；Otherwise described performance element is not controlled by ECU.
5. vehicular clutch according to claim 4 protection device, it is characterised in that described monitoring means includes pedal jaw opening sensor (4), to obtain the opening information of described clutch pedal (3).
6. vehicular clutch according to claim 4 protection device; it is characterized in that; described monitoring means includes the first speed probe (5) for monitoring described flywheel (1001) rotating speed, also includes the second speed probe (6) for monitoring described power shaft (201) rotating speed.
7. vehicular clutch according to claim 4 protection device, it is characterised in that described performance element includes:
Pump clutch, the separation for described clutch provides pump pressure；
First electromagnetic valve (7), is used for controlling described pump clutch；
ECU controls the break-make of described pump clutch, the final separation controlling clutch or combination by controlling the first electromagnetic valve (7).
8. vehicular clutch according to claim 4 protection device, it is characterised in that described speed discrepancy ranges for 0-300rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310526945.2A CN103557245B (en) | 2013-10-30 | 2013-10-30 | A kind of vehicular clutch guard method and protection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310526945.2A CN103557245B (en) | 2013-10-30 | 2013-10-30 | A kind of vehicular clutch guard method and protection device |
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| Publication Number | Publication Date |
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| CN103557245A CN103557245A (en) | 2014-02-05 |
| CN103557245B true CN103557245B (en) | 2016-07-06 |
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| CN201310526945.2A Active CN103557245B (en) | 2013-10-30 | 2013-10-30 | A kind of vehicular clutch guard method and protection device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286576B (en) * | 2017-01-10 | 2021-05-18 | 舍弗勒技术股份两合公司 | Safety control method and device for clutch system |
| JP6926758B2 (en) * | 2017-07-14 | 2021-08-25 | いすゞ自動車株式会社 | Estimator and estimation method |
| CN107605993A (en) * | 2017-08-01 | 2018-01-19 | 宝沃汽车（中国）有限公司 | Clutch controller, system and method and vehicle |
| CN113530660A (en) * | 2021-07-27 | 2021-10-22 | 上海华兴数字科技有限公司 | Electric control silicone oil fan control method and system |
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|---|---|---|---|---|
| CN1204595A (en) * | 1997-06-09 | 1999-01-13 | 易通公司 | Clutch misadjustment determination |
| CN101151478A (en) * | 2005-03-31 | 2008-03-26 | 卡特彼勒公司 | System and method for controlling engagement of a clutch |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001260693A (en) * | 2000-03-21 | 2001-09-26 | Isuzu Motors Ltd | Controller for selective clutch |
| US6943676B2 (en) * | 2002-10-01 | 2005-09-13 | Eaton Corporation | Clutch protection system |
| JP5063475B2 (en) * | 2008-05-13 | 2012-10-31 | 本田技研工業株式会社 | Clutch control device |
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2013
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1204595A (en) * | 1997-06-09 | 1999-01-13 | 易通公司 | Clutch misadjustment determination |
| CN101151478A (en) * | 2005-03-31 | 2008-03-26 | 卡特彼勒公司 | System and method for controlling engagement of a clutch |
Non-Patent Citations (1)
| Title |
|---|
| 乘用车离合器自动保护装置的探讨;黄越杏等;《农业装备与车辆工程》;20120930;第50卷(第9期);第22-25页 * |
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