CN102297218B - Clutch separation system protection device - Google Patents
Clutch separation system protection device Download PDFInfo
- Publication number
- CN102297218B CN102297218B CN 201110230699 CN201110230699A CN102297218B CN 102297218 B CN102297218 B CN 102297218B CN 201110230699 CN201110230699 CN 201110230699 CN 201110230699 A CN201110230699 A CN 201110230699A CN 102297218 B CN102297218 B CN 102297218B
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- clutch
- separation system
- cam
- protection device
- control unit
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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
Technical field
The present invention relates to clutch protection field, be specifically related to a kind of clutch separation system protection device.
Background technique
For the vehicle of MT manual gear, clutch is the vitals of automobile dynamic system, 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 that clutch uses, and had directly embodied the height of driving ability, had also embodied the quality for the vehicle protection.The correct clutch that uses is grasped the principle of clutch to utilize under special circumstances clutch to solve problem, is that the automobile friend of each driving manual gear vehicle should grasp.
So-called clutch, as the term suggests utilize in other words " from " an amount of power transmitted with " closing ".Clutch is comprised of friction plate, spring sheet, platen and pto＝power take-off, be arranged between motor and the gearbox, the moment that is used for storing on the engine flywheel passes to 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, power intake and the clutch end of clutch have allowed speed discrepancy, namely realize transmitting an amount of power by its speed discrepancy.
Clutch is divided into three working staties, does not namely 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 when normally travelling, platen is tightly to bear against on the friction plate of flywheel, the frictional force between this moment platen and the friction plate is maximum, keeps relative static friction between input shaft and the output shaft, 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 namely 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 namely.At this moment, the frictional force of platen and friction plate is less than full interlock state.It is the sliding friction state between the friction plate on clutch compressing disc and the flywheel.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 an axle of gearbox and two axles at this moment, after the power of motor and an axle must being cut, synchronizer could be well synchronous with two axles with the rotating speed maintenance of an axle, gear hang into after, by clutch one axle 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 again easily to cause flame-out such as parkings such as traffic light in travelling.
3, each vehicle clutch system is all different, the clutch that has is higher, being put into approximately 1/3rd places 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 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 only have 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 naturally just flame-out.
Summary of the invention
The invention provides a kind of clutch separation system protection device, 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 separation system protection device; comprise the detection unit for detection of the engine flywheel rotating speed; described detection unit is transferred to a control unit with the tach signal that picks 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 wheel friction sheet, can send when the Speed of Reaction Wheels signal is lower than the engine misses threshold value when described control unit receives that command signal makes the performance element action so that clutch compressing disc disengaging wheel friction sheet.
Described detection unit is speed probe.
Described control unit is 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, the slide block that described pushing device comprises actuating motor, be fixed on cam on the servomotor spindle, 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, can not interfere the normal operation of 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 cam, the center of circle of circular portion and the main shaft of actuating motor are fixed, make things convenient for like this motion of the rotation control slide block of cam, in the cam rotation process because the contour shape of cam promotes slide block movement, simultaneously also can be along with the slow return of the rotation of cam during the slide block return.
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 to the actuating motor of pushing device, actuating motor adopts pulse signal to control, receive the i.e. 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 after treatment pulse signal to actuating motor, actuating motor rotary actuation cam rotates 90 degree, slide block is slided in guide groove under the effect 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 wheel friction sheet, utilize the Driving force of slide block, make clutch reach the state of automatic separation, even clutch pedal all lifts under this state (clutch normal engagement state) clutch compressing disc also not can with the wheel friction chip bonding, all the time rest under the separated state of clutch the normal idling of motor; When the engine flywheel rotating speed is normal, 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, band movable slider return during the connecting rod return, clutch separation system protection device 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 be back mobile slowly, and clutch compressing disc and wheel friction sheet 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 such as korean pine in the process of driveaway operation; this clutch separation system protection device 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 again to light a fire yet; that avoids thoroughly that motor causes because the control mode of clutch is improper is flame-out; reduce the infringement to motor, shortened the stand-by period of vehicle body starting.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of the preferred embodiment for the present invention;
Fig. 3 is pushing device normality structural representation shown in Figure 2;
Fig. 4 is pushing device operating conditions structural representation shown in Figure 2.
Embodiment
Such as Fig. 1, Fig. 2, shown in Figure 3, a kind of clutch separation system protection device 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, and central control unit 2 is selected the PLC controller, and performance element 3 comprises pushing device 31 and force actuators 32, and force actuators 32 is a connecting rod.
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 to actuating motor 312, send signal driver 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, bar 32 motions that are dynamically connected of slide block 314 Sports bands, the motion of solenoidoperated cluthes pedal 5, thereby the engaging of solenoidoperated cluthes platen 6 and wheel friction sheet 8.
The slow clutch pedal 5 of lifting, clutch compressing disc 6 slowly near wheel friction sheet 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 rotary actuation 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 wheel friction sheet 8, the Driving force of slide block 314 makes clutch reach the state of automatic separation, even clutch pedal 5 all lifts under this state, clutch compressing disc 6 can not engage with wheel friction sheet 8 yet, rests on all the time under the separated state of clutch the normal idling of motor; 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; band movable slider 314 returns during connecting rod 32 return, clutch separation system protection device 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 be back mobile slowly, and clutch compressing disc 6 and wheel friction sheet 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 pulse signal is controlled, and then cost is very high if need the assurance precision, and therefore gear pair is set can by changing the mode of velocity ratio, increase cam 313 rotation precision.
Claims (7)
1. clutch separation system protection device, it is characterized in that, comprise the detection unit (1) for detection of engine flywheel (7) rotating speed, described detection unit (1) is transferred to a control unit (2) with the tach signal that picks 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 wheel friction sheet (8), sends when the Speed of Reaction Wheels signal is lower than the engine misses threshold value when described control unit (2) receives that command signal makes performance element (3) action so that clutch compressing disc (6) disengaging wheel friction sheet (8);
Described performance element (3) comprises pushing device (31) and power conducting unit (32);
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).
2. clutch separation system protection device according to claim 1 is characterized in that, described detection unit (1) is speed probe.
3. clutch separation system protection device according to claim 1 is characterized in that, described control unit (2) is central control unit.
4. clutch separation system protection device according to claim 1 is characterized in that, the upper side away from cam (313) of described slide block (314) is provided with spring (316).
5. clutch separation system protection device according to claim 1 is characterized in that, described cam (313) off-centre is fixed on the main shaft of actuating motor (312).
6. clutch separation system protection device according to claim 5 is characterized in that, half is circular for described cam (313), and the main shaft of the center of circle of circular portion and actuating motor (312) is fixed.
7. clutch separation system protection device according to claim 1 is characterized in that, between described actuating motor (312) and the cam (313) one or more groups gear pair is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110230699 CN102297218B (en) | 2011-08-12 | 2011-08-12 | Clutch separation system protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110230699 CN102297218B (en) | 2011-08-12 | 2011-08-12 | Clutch separation system protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102297218A CN102297218A (en) | 2011-12-28 |
| CN102297218B true CN102297218B (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110230699 Expired - Fee Related CN102297218B (en) | 2011-08-12 | 2011-08-12 | Clutch separation system protection device |
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| Country | Link |
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| CN (1) | CN102297218B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3010473B1 (en) * | 2013-09-12 | 2015-08-21 | Valeo Embrayages | METHOD AND SYSTEM FOR CONTROLLING A CLUTCH |
| CN104964018A (en) * | 2015-06-30 | 2015-10-07 | 重庆友擘机械制造有限公司 | Lock-up clutch |
| DE102015221542A1 (en) * | 2015-11-03 | 2017-05-04 | Bayerische Motoren Werke Aktiengesellschaft | Method and control unit for avoiding train dropouts in the drive train of a vehicle |
| 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 |
| CN108253040B (en) * | 2018-01-05 | 2019-07-23 | 重庆青山工业有限责任公司 | The anti-stall control method of emergency brake of vehicle |
Citations (4)
| 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 | 卢尔驱动系统有限公司 | Autombile |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10237710A1 (en) * | 2001-08-24 | 2003-07-10 | Luk Lamellen & Kupplungsbau | Automatic friction clutch for smoothing variations in power transmission from engine to vehicle transmission components in which preset clutch torque is applied based on motor-torque and slip |
-
2011
- 2011-08-12 CN CN 201110230699 patent/CN102297218B/en not_active Expired - Fee Related
Patent Citations (4)
| 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 | 卢尔驱动系统有限公司 | Autombile |
| 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 |
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|---|---|
| CN102297218A (en) | 2011-12-28 |
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