CN102297218A - Clutch separation system protection device - Google Patents

Clutch separation system protection device Download PDF

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Publication number
CN102297218A
CN102297218A CN2011102306997A CN201110230699A CN102297218A CN 102297218 A CN102297218 A CN 102297218A CN 2011102306997 A CN2011102306997 A CN 2011102306997A CN 201110230699 A CN201110230699 A CN 201110230699A CN 102297218 A CN102297218 A CN 102297218A
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CN
China
Prior art keywords
clutch
cam
control unit
release system
flywheel
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Granted
Application number
CN2011102306997A
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Chinese (zh)
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CN102297218B (en
Inventor
武松
顾伟明
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Zhejiang Geely Holding Group Co Ltd
Zhejiang Jingang Automobile Co Ltd
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Zhejiang Geely Holding Group Co Ltd
Zhejiang Jingang Automobile Co Ltd
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Application filed by Zhejiang Geely Holding Group Co Ltd, Zhejiang Jingang Automobile Co Ltd filed Critical Zhejiang Geely Holding Group Co Ltd
Priority to CN 201110230699 priority Critical patent/CN102297218B/en
Publication of CN102297218A publication Critical patent/CN102297218A/en
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Publication of CN102297218B publication Critical patent/CN102297218B/en
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Abstract

The invention discloses a clutch separation system protection device comprising a detection unit which is used for detecting the rotating speed of an engine flywheel; the detection unit transmits a rotating speed signal which is picked up to a control unit; the control unit receives and processes the signal and sends the same to an actuating unit; the actuating unit is used for controlling the joint of a clutch compressing disc and a flywheel friction plate; when the receiving the rotating speed signal of the flywheel which is less than the flameout threshold of an engine, the control unit can send out an instruction signal, so that the actuating unit works and the clutch compressing disc is separated from the flywheel friction plate. The clutch separation system protection device is used for protecting a clutch separation system when a vehicle is started, and solves the problem that when a manual transmission (MT) vehicle is started, the engine is flamed out because a clutch is released too quickly or the rotating speed of the engine is quite low.

Description

A kind of clutch release system protective gear
Technical field
The present invention relates to clutch protection field, be specifically related to a kind of clutch release system protective gear.
Background technique
Manually for the vehicle of retaining, clutch is the vitals of automobile dynamic system for MT, and it is being undertaken and is cutting off and the work that is connected between power and the motor.When urban road or complicated highway section were driven, clutch had become our one of the parts of frequent use, and the quality of clutch utilization, had directly embodied the height of driving level, had also embodied the quality for the vehicle protection.The correct clutch that uses, the principle of grasping clutch solves problem to utilize clutch under special circumstances, is that each automobile friend who drives the type of manually keeping off a car should grasp.
So-called clutch, as the term suggests utilize in other words " from " an amount of power transmitted with " closing ".Clutch is made up of friction plate, spring sheet, platen and pto, be arranged between motor and the gearbox, the transmission of torque that is used for storing on the engine flywheel is given gearbox, guarantee that vehicle passes to an amount of driving force of driving wheel and moment of torsion under different running condition, belong to the category of power assembly.In semi-linkage, the power intake and the clutch end of clutch allow speed discrepancy, just realize transmitting an amount of power by its speed discrepancy.
Clutch is divided into three working staties, does not promptly step on the full interlock of clutch, and part is stepped on half interlock of clutch, and the not interlock of stepping on clutch.When vehicle during at cruising, platen is tightly to bear against on the friction plate of flywheel, and the frictional force maximum between this moment platen and the friction plate keeps relative static friction between input shaft and the output shaft, and the two rotating speed is identical.When vehicle start, the driver steps on clutch, and the motion pulling platen of clutch pedal leans on backward, and just platen separates with friction plate, and this moment, platen did not contact fully with flywheel, did not just have relative friction yet.
A kind of at last, half interlock state of clutch just.At this moment, the frictional force of platen and friction plate is less than full interlock state.It between the friction plate on clutch compressing disc and the flywheel sliding friction state.The rotating speed of flywheel is greater than the rotating speed of output shaft, and the power section of transmitting out from flywheel passes to gearbox, and be equivalent to a kind of be flexible coupling state between motor and the driving wheel this moment.
In general, clutch is to play a role in vehicle start and gearshift, there is speed discrepancy between one and two of gearbox at this moment, must be with after the power of motor and the incision, synchronizer could be well synchronous with two with one rotating speed maintenance, after gear is hung into, by clutch one is engaged with engine power again, make power continue to be transmitted.
There is following shortcoming in the clutch of automobile in the prior art:
1, neophyty operation since to the clutch separation gap be not very familiar easily cause flame-out.
2, start to walk easily to cause flame-out again as parkings such as traffic light in travelling.
3, each vehicle clutch system is all different, the clutch that has is than higher, being put into 1/3rd places approximately just has and begins to engage, this 1/3rd clutch is in separation all the time before that is to say. and ensuing 1/3rd sections, a very short segment distance, clutch will fit like a glove, and that is to say the interval smaller of semi-linkage, and smouldering fire is flame-out quickly so cause easily.
4, fail to cooperatively interact between the Throttle Opening Control of the rotating speed of motor and the speed changer in the up-hill journey process easily cause flame-out.
Easily flame-out during MT manual-gear vehicle driveaway operation in the prior art, especially phenomenon is comparatively general especially in neophyty operation, and its chief reason is that motor suffocates fire.The main cause of engine misses is exactly an automobilism load torque (moment of torsion) greater than the torque of motor output, no matter be under steam or during starting.Engine operation comprises four strokes: air-breathing, compression, acting and exhaust, and wherein have only one to be (acting) of output torque, its excess-three stroke is that the inertia of dependence moment of flywheel moves.When exporting torque less than load torque, motor is braked, and can't carry out the periodic duty of four strokes, and period of braking is long, has not had the output torque, and motional inertia disappears, and motor is just flame-out naturally.
Summary of the invention
The invention provides a kind of clutch release system protective gear, solved the MT manual-gear vehicle and when starting, lost too rapid or the less problem that causes engine misses of engine speed of putting because of clutch.
A kind of clutch release system protective gear; comprise the detection unit that is used for detection of engine flywheel rotating speed; described detection unit is transferred to a control unit with the tach signal that is picked up; described control unit receives and processing signals sends to a performance element; described performance element is used for engaging of solenoidoperated cluthes platen and flywheel friction plate, can send command signal when the flywheel tach signal is lower than the engine misses threshold value and makes the performance element action so that clutch compressing disc breaks away from the flywheel friction plate when described control unit receives.
Described detection unit is a speed probe.
Described control unit is a central control unit, and described central control unit is PLC controller or dsp controller.
Described performance element comprises pushing device and power conducting unit.
Described power conducting unit is a connecting rod, slide block that described pushing device comprises actuating motor, be fixed on cam on the actuating motor main shaft, fit with cam edge and the guide groove that cooperates with slide block, described actuating motor receives the signal that is sent by described control unit, driving cam rotates, promoting slide block slides in guide groove, one end of described slide block and described connecting rod is fixed, and the described connecting rod the other end is fixed on the drive link of clutch pedal.
Side away from cam on the described slide block is provided with spring, slide block always had towards the trend of motor one side when pushing device was in the normal state, the proper functioning that can not interfere clutch, when pushing device returned to normal from working state, spring had the effect that makes the slow return of slide block.
Described cam off-centre is fixed on the main shaft of actuating motor, half is circular for a cam, the center of circle of circular portion and the main shaft of actuating motor are fixed, make things convenient for the motion of the rotation control slide block of cam like this, in the cam rotation process because the contour shape of cam promotes slide block movement, simultaneously also can be during the slide block return along with the slow return of the rotation of cam.
One or more groups gear pair is set, by changing the mode of velocity ratio, to improve the validity of actuating motor control angular displacement of the cam between described actuating motor and the cam.
The rotary speed information of described speed probe induction generator flywheel, rotary speed information is passed to central control unit, central control unit receives the rotary speed information of speed probe, send pulse signal and give the actuating motor of pushing device, actuating motor adopts pulse signal to control, receive the promptly rotatable specific angle of a pulse signal, can accurately control cam towards, when the rotating speed of engine flywheel is lower than setting threshold (engine misses threshold value), central control unit receives rotary speed information and sends pulse signal after treatment and give actuating motor, actuating motor rotation driving cam rotates 90 degree, slide block is slided in guide groove under action of cam, Driving force conducting unit connecting rod, connecting rod drives the clutch pedal motion, the spring sheet of compression clutch, make clutch compressing disc break away from the flywheel friction plate, utilize the Driving force of slide block, make clutch reach the state of automatic separation, even the following clutch pedal of this state all lifts (clutch normal engagement state) clutch compressing disc and also can not engage with the flywheel friction plate, all the time rest under the separated state of clutch the normal idling of motor; When the engine flywheel rotating speed just often, central control unit sends its continuation rotation 270 degree of pulse enable signal to actuating motor and resets, in the actuating motor rotary course, cam is resetted, the spring sheet of clutch makes the connecting rod return, drive the slide block return during connecting rod return, the clutch release system protective gear returns to normality, waits for the Next Command of central control unit; Owing to the contour shape of cam and the effect of slide block one side spring, slide block can back move slowly, and clutch compressing disc and flywheel friction plate are engaged slowly simultaneously.
Advantage of the present invention: the present invention separates with control; the fortune merit of recovering is protected the piece-rate system of automobile clutch; be lifted away from when closing that the device pedal is too fast to cause motor soon flame-out as korean pine in the process of driveaway operation; this clutch release system protective gear starts automatically; even at this moment the driver all lifts the clutch pedal motor and also can not stop working; the driver only needs again let slip the clutch just can continue driveaway operation; can not stop working does not need to light a fire again yet; that avoids thoroughly that motor causes because of the control mode of clutch is improper is flame-out; reduced infringement, shortened the stand-by period of vehicle body starting motor.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of the preferred embodiment for the present invention;
Fig. 3 is a pushing device normality structural representation shown in Figure 2;
Fig. 4 is a pushing device operating conditions structural representation shown in Figure 2.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, a kind of clutch release system protective gear is arranged between motor car engine and the clutch pedal, comprises detection unit 1, control unit 2, performance element 3; Detection unit 1 is selected speed probe for use, and central control unit 2 is selected the PLC controller for use, and performance element 3 comprises pushing device 31 and force actuators 32, and force actuators 32 is a connecting rod.
Speed probe 1 is arranged near the engine flywheel 7, the rotating speed of induction generator flywheel 7, at lower end one pushing device 31 is set near the drive link 4 of clutch pedal, a PLC controller 2 is set between speed probe 1 and pushing device 31, pushing device 31 comprises a housing 311, the slide block 314 that housing 311 is set at the inside is divided into two-part, housing 311 inwalls are provided with and are used for guide groove 315 that slide block 314 is led, the left side of slide block 314 is provided with an actuating motor 312, the main shaft top of actuating motor 312 is provided with a cam 313, half is circular for a cam 313, half is oval, oval part up, the top of the center of circle of circular portion and actuating motor 312 main shafts is fixed, the edge of cam 313 and slide block 314 are fitted, the right of slide block 314 is provided with a spring 316, be connected on the inwall of slide block 314 and housing 311, make slide block 314 have left trend forever, one end of the upper end of slide block 314 and connecting rod 32 is fixed, the other end of connecting rod 32 is fixed on the lower end of the drive link 4 of clutch pedal, and connecting rod 32 and slide block 314 are on the same vertical curve.
The rotating speed of speed probe 1 induction generator flywheel 7, then rotary speed information is passed to PLC controller 2, PLC controller 2 is with after the signal analysis and processing, send pulse signal and give actuating motor 312, send signal driving cam 313 after the actuating motor 312 acknowledge(ment) signal analysing and processing and rotate, the motion of control slide block 314 in guide groove 315, slide block 314 motions drive connecting rod 32 motions, the motion of solenoidoperated cluthes pedal 5, thereby the engaging of solenoidoperated cluthes platen 6 and flywheel friction plate 8.
The slow clutch pedal 5 of lifting, clutch compressing disc 6 slowly near flywheel friction plate 8, normally start to walk by automobile, and clutch pedal 5 pines are lifted when too fast, and motor can stop working.In the motor starting-up process, the rotating speed of speed probe 1 instant induction generator flywheel 7, when the rotating speed of engine flywheel 7 is lower than setting threshold (engine misses threshold value), PLC controller 2 sends pulse signal to actuating motor 312 after receiving rotary speed information and processing, actuating motor 312 rotation driving cams 313 clockwise rotate 90 degree, slide block 314 is being slided to the right in guide groove 315 under the effect of cam 313, promote connecting rod 32, the drive link 4 that connecting rod 32 drives clutch pedal moves right, make clutch compressing disc 6 break away from flywheel friction plate 8, the Driving force of slide block 314 makes clutch reach the state of automatic separation, even this state clutch pedal 5 down all lifts, clutch compressing disc 6 can not engage with flywheel friction plate 8 yet, rests under the separated state of clutch the normal idling of motor all the time; At last after engine flywheel 7 rotating speeds are normal; PLC controller 2 sends its continuation rotation 270 degree of pulse enable signal to actuating motor 312 and resets; in actuating motor 312 rotary courses; cam 313 resets; the spring sheet (not shown) of clutch makes connecting rod 32 returns; drive slide block 314 returns during connecting rod 32 returns, the clutch release system protective gear returns to normality.Owing to the contour shape of cam 313 and the effect of slide block 314 1 side springs 316, slide block 314 can back move slowly, and clutch compressing disc 6 and flywheel friction plate 8 are engaged slowly simultaneously.
In the present embodiment, also one or more groups gear pair can be set between the axle of actuating motor 312 and cam 313, to improve the validity of actuating motor 312 control cams 313 rotation angles.Actuating motor 312 main shafts rotate 90 degree or 270 degree are difficult to guarantee its precision because of pulse signal is controlled, and then cost is very high if need guarantee precision, and therefore gear pair is set can be by changing the mode of velocity ratio, increase cam 313 rotation precision.

Claims (9)

1. clutch release system protective gear; it is characterized in that; comprise the detection unit (1) that is used for detection of engine flywheel (7) rotating speed; described detection unit (1) is transferred to a control unit (2) with the tach signal that is picked up; described control unit (2) receives and processing signals sends to a performance element (3); described performance element (3) is used for engaging of solenoidoperated cluthes platen (6) and flywheel friction plate (8), sends command signal when the flywheel tach signal is lower than the engine misses threshold value and makes performance element (3) action so that clutch compressing disc (6) breaks away from flywheel friction plate (8) when described control unit (2) receives.
2. clutch release system protective gear according to claim 1 is characterized in that, described detection unit (1) is a speed probe.
3. clutch release system protective gear according to claim 1 is characterized in that, described control unit (2) is a central control unit.
4. clutch release system protective gear according to claim 1 is characterized in that, described performance element (3) comprises pushing device (31) and power conducting unit (32).
5. clutch release system protective gear according to claim 4; it is characterized in that; described power conducting unit (32) is a connecting rod; described pushing device (31) comprises actuating motor (312); be fixed on the cam (313) on actuating motor (312) main shaft; with the slide block (314) of cam (313) edge applying and the guide groove (315) that cooperates with slide block (314); described actuating motor (312) receives the signal that is sent by described control unit (2); driving cam (313) rotates; promoting slide block (314) slides in guide groove (315); described slide block (314) is fixed with described connecting rod one end, and the other end of described connecting rod is fixed on the drive link of clutch pedal (4).
6. clutch release system protective gear according to claim 5 is characterized in that, the side that described slide block (314) is gone up away from cam (313) is provided with spring (316).
7. clutch release system protective gear according to claim 5 is characterized in that, described cam (313) off-centre is fixed on the main shaft of actuating motor (312).
8. clutch release system protective gear according to claim 7 is characterized in that, half is circular for a described cam (313), and the main shaft of the center of circle of circular portion and actuating motor (312) is fixed.
9. clutch release system protective gear according to claim 5 is characterized in that, between described actuating motor (312) and the cam (313) one or more groups gear pair is set.
CN 201110230699 2011-08-12 2011-08-12 Clutch separation system protection device Expired - Fee Related CN102297218B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN 201110230699 CN102297218B (en) 2011-08-12 2011-08-12 Clutch separation system protection device

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CN102297218A true CN102297218A (en) 2011-12-28
CN102297218B CN102297218B (en) 2013-01-09

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104964018A (en) * 2015-06-30 2015-10-07 重庆友擘机械制造有限公司 Lock-up clutch
CN105531492A (en) * 2013-09-12 2016-04-27 Valeo离合器公司 Method and system for controlling a clutch
CN106594265A (en) * 2016-11-25 2017-04-26 浙江吉利控股集团有限公司 Control device and control method of manual transmission clutch
CN107850141A (en) * 2015-11-03 2018-03-27 宝马股份公司 For avoiding drawing the method and control unit of interruption in vehicle engine assembly system
CN108253040A (en) * 2018-01-05 2018-07-06 重庆青山工业有限责任公司 The anti-stall control method of emergency brake of vehicle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5413542A (en) * 1991-06-28 1995-05-09 Jarvis; Roger P. Clutch control system
CN1107426A (en) * 1993-08-03 1995-08-30 卢尔驱动***有限公司 Autombile
US20040260444A1 (en) * 2001-08-24 2004-12-23 Stefan Winkelmann Regulated drivetrain for damping out vibrations
CN1659054A (en) * 2002-04-10 2005-08-24 卢克摩擦片和离合器两合公司 Method, device and use thereof for operating a motor vehicle
CN101158377A (en) * 2007-11-22 2008-04-09 吉林大学 Pneumatic power fluid-control type clutch automatic control device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5413542A (en) * 1991-06-28 1995-05-09 Jarvis; Roger P. Clutch control system
CN1107426A (en) * 1993-08-03 1995-08-30 卢尔驱动***有限公司 Autombile
US20040260444A1 (en) * 2001-08-24 2004-12-23 Stefan Winkelmann Regulated drivetrain for damping out vibrations
CN1659054A (en) * 2002-04-10 2005-08-24 卢克摩擦片和离合器两合公司 Method, device and use thereof for operating a motor vehicle
CN101158377A (en) * 2007-11-22 2008-04-09 吉林大学 Pneumatic power fluid-control type clutch automatic control device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105531492A (en) * 2013-09-12 2016-04-27 Valeo离合器公司 Method and system for controlling a clutch
CN105531492B (en) * 2013-09-12 2019-02-22 Valeo离合器公司 For manipulating the control method and control system of clutch
CN104964018A (en) * 2015-06-30 2015-10-07 重庆友擘机械制造有限公司 Lock-up clutch
CN107850141A (en) * 2015-11-03 2018-03-27 宝马股份公司 For avoiding drawing the method and control unit of interruption in vehicle engine assembly system
CN106594265A (en) * 2016-11-25 2017-04-26 浙江吉利控股集团有限公司 Control device and control method of manual transmission clutch
CN106594265B (en) * 2016-11-25 2019-04-16 浙江吉利控股集团有限公司 A kind of manual transmission clutch control device and control method
CN108253040A (en) * 2018-01-05 2018-07-06 重庆青山工业有限责任公司 The anti-stall control method of emergency brake of vehicle

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