CN100494724C - Heavy vehicle clutch automatic control system - Google Patents
Heavy vehicle clutch automatic control system Download PDFInfo
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- CN100494724C CN100494724C CNB2007100927883A CN200710092788A CN100494724C CN 100494724 C CN100494724 C CN 100494724C CN B2007100927883 A CNB2007100927883 A CN B2007100927883A CN 200710092788 A CN200710092788 A CN 200710092788A CN 100494724 C CN100494724 C CN 100494724C
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- clutch
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- valve
- speed switch
- switch electromagnetic
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Abstract
A heavy-typed vehicle clutch automatic control system consists of a gas storage tank (1), an electric control unit (2), a hydraulic source unit (3), a clutch control valve (4), a hydraulic control pneumatic cylinder (5), a separating puling fork (6), a clutch (7) and a displacement sensor (8); wherein the clutch control valve consists of a valve body and two high-speed switch electromagnetic valves; the pulse width modulation signal is emitted to the high-speed switch electromagnetic valve by the electric control unit (2), in order to control the separation and combination of the clutch and keep the working condition; the speed of the combination and separation of the clutch (7) can be controlled by changing the duty cycle of the pulse width modulation signal; the displacement sensor (8) detects the stroke of a platen of the clutch and can implement the enclosed ring control of the target combination position and speed of the clutch (7). The system changes the original hydraulic control pneumatic clutch mechanism a little, has simple structure, convenient arrangement, easy manufacture and reshape, reliable control, and can meet the requirement of the heavy-typed vehicle hydraulic control pneumatic clutch automatic control.
Description
Technical field
The present invention relates to the automatic control of vehicular clutch, be specifically related to the hydraulic control gas booster type clutch automatic control system of a kind of heavy vehicle mechanical automatic speed-changing system or automatic clutch operation system.
Background technique
Heavy vehicle generally adopts the armstrong's patent speed changer, because Transmission gear is many, shift control power is big, need gas pedal, clutch pedal and the action of gear shifting handle cooperation during gear shift, to driving operation technical requirements height, make driver's operation intensity big, fatiguability brings certain influence to travel safety simultaneously.To have the hand gear vehicle now and change electric-controlled mechanical automatic speed changing (AMT) vehicle into, the cancellation clutch pedal, realize clutch separation in conjunction with the automatic control of gearshift procedure, will reduce the driving technology difficulty, alleviate driving operation intensity greatly, can improve vehicle performance and technical merit simultaneously.For electric-controlled mechanical automatic speed changing vehicle, the automatic control of clutch is to guarantee that vehicle has good power character, starting and gear shift smoothness, and the key that reduces clutch abrasion.On June 21st, 2006 notice of authorization Chinese utility model patent ZL2005200837525 " open loop electro-pneumatic clutch ", a kind of clutch device scheme that adopts stepper motor, servo valve and air cylinder driven is disclosed, can realize the control function of clutch, but owing to adopt gear, tooth bar to connect between servo valve and the stepper motor, motion by machine feedback compensation servo valve valve rod, there is complicated in mechanical structure, it is big to take up space, be not easy to arrange and install, control accuracy is low, and does not cancel defectives such as clutch pedal.Disclosed Chinese invention patent application on August 29th, 2007 (publication number: CN101025208A) " heavy automobile clutch with automatically controlled pneumatic control valve and ecp control system ", the clutch electrical feedback control system that comprises clutch pedal displacement transducer, clutch displacement sensor, power-assisted cylinder, controller and push buttonvalve is disclosed, the electric controlled pneumatic control that can be used for the clutch of heavy-duty car, but same owing to kept clutch pedal, there is not realization clutch truly to control automatically.On January 18th, 2006 notice of authorization Chinese utility model patent ZL200420111683X " a kind of hydropneumatic servo-clutch control gear ", a kind of automatically controlled master cylinder device of connecting in original clutch hydraulic pressure operation system is disclosed, can realize clutch manual and automatic dual control or all-electric automatically controlled clutch control device, but because drive motor power and volume are big, be not easy to arrange and install, because the inertia of motor and reducing gear is bigger, be difficult to realize the accurate control of clutch simultaneously in conjunction with speed and position.The heavy vehicle clutch mechanism of hand gear generally adopts hydraulic control gas power-assisted driving mode, when hand gear being changed into the automatic speed changing of employing hydraulic actuator, need a kind of simple and compact for structure, arrange easy for installation, the control accuracy height is changed little clutch automatic control system to the original clutch hydraulic control of heavy vehicle gas power-assisted drive mechanism.
Summary of the invention
The objective of the invention is to propose a kind of heavy vehicle clutch automatic control system, on the basis that does not change former hydraulic control gas booster type clutch actuating mechanism, the clutch control valve that increase is made of two high-speed switch electromagnetic valves and valve body, by control, realize the automatic control of clutch separation cohesive process to high-speed switch electromagnetic valve.The original hydraulic control gas of vehicle booster type clutch actuating mechanism is changed not quite, and simple in structure, arrangement convenience is made repacking easily, and control reliably can be satisfied the heavy vehicle hydraulic control gas booster type clutch needs of control automatically.
For achieving the above object, technological scheme of the present invention is:
A kind of heavy vehicle clutch automatic control system of the present invention, form by gas holder, ECU (Electrical Control Unit), hydraulic power device, clutch control valve, hydraulic control gas servo-cylinder, disengaging yoke, clutch and clutch displacement sensor, wherein clutch control valve by valve body, often open high-speed switch electromagnetic valve, normally closed high-speed switch electromagnetic valve constitutes, these two high-speed switch electromagnetic valves are installed on the valve body by screw thread.Described clutch control valve has 3 hydraulic fluid ports, is respectively the control valve filler opening that links to each other with hydraulic power device pressure hydraulic fluid port, control valve return opening that links to each other with hydraulic power device return opening and the control port that is connected to hydraulic control gas servo-cylinder filler opening.The gas holder outlet links to each other with hydraulic control gas servo-cylinder suction port.The place is equipped with displacement transducer at clutch release fork, detects the clutch compressing disc stroke.Two high-speed switch electromagnetic valves and displacement transducer are electrically connected with ECU (Electrical Control Unit), and ECU (Electrical Control Unit) sends pulse-width signal to high-speed switch electromagnetic valve, control two high-speed switch electromagnetic valve power on/off may command clutches in conjunction with, separate and keep three kinds of operating modes.
When two high-speed switch electromagnetic valves are all switched on, normally closed high-speed switch electromagnetic valve is opened, often opening high-speed switch electromagnetic valve closes, pressure oil from the hydraulic power device enters hydraulic control gas servo-cylinder filler opening by normally closed high-speed switch electromagnetic valve, act on the hydraulic work cylinder piston as working pressure on the one hand, on the other hand again as pilot pressure, enter the right chamber of spool from the slave cylinder piston chamber by oily passage, the promotion spool moves to left, at first close the pneumatic control valve center hole through the open to atmosphere passage of relief opening, promoting pneumatic control valve then moves to left, at this moment the pressurized air from gas holder enters chamber, a spool left side by hydraulic control gas servo-cylinder suction port, enter the power piston pressure chamber through the gas passage again, propulsion power piston under the effect of hydraulic coupling and compressed air pressure like this, push rod moves to right, and makes clutch separation thereby promote the clutch release fork rotation.
When two high-speed switch electromagnetic valves all cut off the power supply, normally closed high-speed switch electromagnetic valve is closed, disconnected pressure oil from the hydraulic power device, often open the high-speed switch valve conducting, clutch control valve control port is communicated with return opening, and oil pressure descends in the hydraulic control gas servo-cylinder, and spool moves to right under the effect of return spring, pneumatic control valve is closed the passage in the chamber, a left side from the servo-cylinder suction port to spool under the effect of return spring, cut off the gas power-assisted.Chamber, a spool left side is communicated with relief opening by the pneumatic control valve center hole simultaneously, pressurized air in the power piston pressure chamber is after the gas passage enters chamber, a spool left side, enter atmosphere through relief opening, power piston pressure chamber pressure is reduced, anti-push rod and power piston move to left under the effect of clutch compressing disc spring, clutch.
When often opening high-speed switch electromagnetic valve energising, the outage of normally closed high-speed switch electromagnetic valve, clutch control valve filler opening, return opening all are not communicated with control port, turn-offed and entered hydraulic control gas servo-cylinder pressure oil, pneumatic control valve moves to right under the return spring effect, close the passage in chamber, a left side, cut off the gas power-assisted from the servo-cylinder suction port to spool.Simultaneously under the balanced action of oil pressure, air pressure and spring, spool moves to left and cuts off being communicated with of chamber, a spool left side and relief opening, and the pressure in the power piston pressure chamber remains unchanged, and power piston and push rod will keep motionless at this moment, and clutch is in hold mode.
By changing the dutycycle of the pulse-width signal that ECU (Electrical Control Unit) sends, can solenoidoperated cluthes separate, the speed of combination.Displacement transducer detects the stroke of clutch compressing disc, and the displacement amount signal is delivered to ECU (Electrical Control Unit), and system can carry out closed loop control to the binding site of clutch with in conjunction with speed under the control of ECU (Electrical Control Unit).
Owing to adopt such scheme, can be under the condition that does not change the original hydraulic control gas of vehicle booster type clutch actuating mechanism, realize the automatic control of the separating and combining of clutch, have stronger adaptability and versatility, and apparatus structure is simple, repacking is easy, and reliable operation can satisfy the needs that the AMT vehicle is controlled automatically to clutch.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a plan view of the present invention.
Fig. 2 is the insight structural map of clutch control valve.
Fig. 3 is the insight structural map of hydraulic control gas servo-cylinder.
Among the figure: 1-air accumulator, 2-ECU, 3-hydraulic power source device, 4-clutch control valve 401-is often driven the high-speed switch electromagnetic valve 402-left chamber of 510-spool, 511-spool, 505-push rod, 506-power piston, 507-power piston pressure chamber right chamber of 508-oily passage 509-spool, normally closed high-speed switch electromagnetic valve 403-valve body 404-control port 405-control valve oil return opening 406-control valve oil-in 5-hydraulic control gas servo-cylinder 501-servo-cylinder oil-in 502-hydraulic working cylinder piston 503-gas passage 504-working cylinder piston chamber 512-pneumatic control valve, 513-servo-cylinder air inlet, 514-exhaust outlet, 6-disengaging yoke, 7-clutch, 8-displacement transducer
Embodiment
A kind of heavy vehicle clutch automatic control system is made up of gas holder 1, ECU (Electrical Control Unit) 2, hydraulic power device 3, clutch control valve 4, hydraulic control gas servo-cylinder 5, disengaging yoke 6, clutch 7, clutch displacement sensor 8.Wherein clutch control valve 4 constitutes by often opening high-speed switch electromagnetic valve 401, normally closed high-speed switch electromagnetic valve 402 and valve body 403.Often opening high-speed switch electromagnetic valve 401 and normally closed high-speed switch electromagnetic valve 402 is installed on the valve body 403 by screw thread, described clutch control valve 4 has 3 hydraulic fluid ports, it is respectively the control valve filler opening 406 that links to each other with the pressure hydraulic fluid port of hydraulic power device 3, control valve return opening 405 that links to each other with the return opening of hydraulic power device 3 and the control port 404 that is connected to servo-cylinder filler opening 501, gas holder 1 outlet links to each other with servo-cylinder suction port 513.6 places are equipped with displacement transducer 8 at clutch release fork, in order to detect clutch 7 in conjunction with stroke.Often driving high-speed switch electromagnetic valve 401 and normally closed high-speed switch electromagnetic valve 402 and displacement transducer 8 is electrically connected with ECU (Electrical Control Unit) 2, send pulse-width signals by ECU (Electrical Control Unit) 2 and control respectively and often open high-speed switch electromagnetic valve 401 and 402 conductings of normally closed high-speed switch electromagnetic valve and close, may command clutch 7 in conjunction with, separate and keep three kinds of operating modes.When often opening high-speed switch electromagnetic valve 401 and normally closed high-speed switch electromagnetic valve 402 and all switch on, normally closed high-speed switch electromagnetic valve 401 conductings, often opening high-speed switch electromagnetic valve 402 closes, clutch control valve filler opening 406 is communicated with control port 404, pressure oil from hydraulic power device 3 enters servo-cylinder filler opening 501 by normally closed high-speed switch electromagnetic valve 402, act on the hydraulic work cylinder piston 502 as working pressure on the one hand, on the other hand again as pilot pressure, enter the right chamber 509 of spool from slave cylinder piston chamber 504 by oily passage 508, promoting spool 510 moves to left, at first close pneumatic control valve 512 center holes through relief opening 514 open to atmosphere passages, pneumatic control valve 512 is moved to left, at this moment the pressurized air from gas holder 1 enters chamber 511, a spool left side by servo-cylinder suction port 513, enter power piston pressure chamber 507 through gas passage 503 again, propulsion power piston 506 under the effect of hydraulic coupling and compressed air pressure like this, push rod 505 moves to right, thereby promote clutch release fork 6 rotations clutch 7 is separated.
When often opening high-speed switch electromagnetic valve 401 and normally closed high-speed switch electromagnetic valve 402 and all cut off the power supply, normally closed high-speed switch electromagnetic valve 402 is closed, disconnected pressure oil from hydraulic power device 3, often open high-speed switch electromagnetic valve 401 conductings, clutch control valve control port 404 is communicated with return opening 405, oil pressure descends in the hydraulic control gas servo-cylinder 5, spool 510 moves to right under the effect of return spring, pneumatic control valve 512 is closed the passage in the chamber 511, a left side from servo-cylinder suction port 513 to spool under the effect of return spring, cut off the gas power-assisted.Chamber 511, a spool left side is communicated with relief opening 514 by pneumatic control valve 512 center holes simultaneously, pressurized air in the power piston pressure chamber 507 is after gas passage 503 enters chamber 511, a spool left side, enter atmosphere through relief opening 514, pressure in the power piston pressure chamber 507 is reduced, anti-push rod 505 and power piston 506 move to left under the effect of clutch compressing disc spring, and clutch 7 engages.
When often opening high-speed switch electromagnetic valve 401 energisings, 402 outages of normally closed high-speed switch electromagnetic valve, clutch control valve filler opening 406, return opening 405 all are not communicated with control port 404, turn-offed the pressure oil that enters hydraulic control gas servo-cylinder 5, pneumatic control valve 512 moves to right under the return spring effect, close the passage in chamber 511, a left side, cut off the gas power-assisted from servo-cylinder suction port 513 to spool.Simultaneously under the balanced action of oil pressure and air pressure, spool 510 moves to left and cuts off being communicated with of chamber 511, a spool left side and relief opening 514, pressure in the power piston pressure chamber 507 remains unchanged, and power piston 506 and push rod 505 will keep motionless this moment, and clutch is in hold mode.
Change ECU (Electrical Control Unit) 2 and send to the dutycycle of often opening high-speed switch electromagnetic valve 401 and normally closed high-speed switch electromagnetic valve 402 pulse-width signals, get final product the speed of solenoidoperated cluthes 7 separation, combination.Displacement transducer 8 detects the stroke of clutch 7, and sends signal to ECU (Electrical Control Unit) 2, and system can carry out closed loop control to clutch 7 binding sites with in conjunction with speed by ECU (Electrical Control Unit) 2.
Claims (1)
1. heavy vehicle clutch automatic control system, by gas holder (1), ECU (Electrical Control Unit) (2), hydraulic power device (3), clutch control valve (4), hydraulic control gas servo-cylinder (5), disengaging yoke (6), clutch (7), displacement transducer (8) is formed, wherein clutch control valve (4) is by often opening high-speed switch electromagnetic valve (401), normally closed high-speed switch electromagnetic valve (402) and valve body (403) constitute, it is characterized in that often opening high-speed switch electromagnetic valve (401) and normally closed high-speed switch electromagnetic valve (402) is installed on the valve body (403) by screw thread, described clutch control valve (4) has 3 hydraulic fluid ports, it is respectively the control valve filler opening (406) that links to each other with the pressure hydraulic fluid port of hydraulic power device (3), control valve return opening (405) that links to each other with the return opening of hydraulic power device (3) and the control oil (404) that is connected to hydraulic control gas servo-cylinder (5) oil-feed (501), gas holder (1) outlet links to each other with the suction port (513) of hydraulic control gas servo-cylinder (5), often opening high-speed switch electromagnetic valve (401) and normally closed high-speed switch electromagnetic valve (402) is electrically connected with ECU (Electrical Control Unit) (2), send pulse-width signal by ECU (Electrical Control Unit) (2) and control the power on/off of often opening high-speed switch electromagnetic valve (401) and normally closed high-speed switch electromagnetic valve (402) respectively, may command clutch (7) combination, separate and keep three kinds of operating modes, the EDM Generator of Adjustable Duty Ratio joint clutch (7) that changes pulse-width signal separates, in conjunction with speed, locate to be equipped with the displacement transducer (8) that can detect clutch (7) platen stroke at disengaging yoke (6), system can carry out closed loop control to the binding site of clutch (7) with in conjunction with speed by ECU (Electrical Control Unit) (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100927883A CN100494724C (en) | 2007-09-29 | 2007-09-29 | Heavy vehicle clutch automatic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100927883A CN100494724C (en) | 2007-09-29 | 2007-09-29 | Heavy vehicle clutch automatic control system |
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| Publication Number | Publication Date |
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| CN101158378A CN101158378A (en) | 2008-04-09 |
| CN100494724C true CN100494724C (en) | 2009-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100927883A Expired - Fee Related CN100494724C (en) | 2007-09-29 | 2007-09-29 | Heavy vehicle clutch automatic control system |
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Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4921576B2 (en) * | 2010-06-30 | 2012-04-25 | 株式会社エクセディ | Clutch operating device |
| CN102338171A (en) * | 2011-06-21 | 2012-02-01 | 三一重工股份有限公司 | Clutch abrasion detection system and automobile |
| JP6238902B2 (en) * | 2011-11-24 | 2017-11-29 | シェフラー テクノロジーズ アー・ゲー ウント コー． カー・ゲーＳｃｈａｅｆｆｌｅｒ Ｔｅｃｈｎｏｌｏｇｉｅｓ ＡＧ ＆ Ｃｏ． ＫＧ | Method for checking proper filling of hydraulic operating device |
| CN102537307A (en) * | 2011-12-28 | 2012-07-04 | 上海汽车集团股份有限公司 | Automatic neutral-gear returning control method of parking for metal belt type stepless speed changer |
| CN104653659A (en) * | 2013-11-25 | 2015-05-27 | 陕西国力信息技术有限公司 | Automatic clutch assembly based on AMT (Automated Mechanical Transmission) |
| CN104712754A (en) * | 2013-12-17 | 2015-06-17 | 北汽福田汽车股份有限公司 | Vehicle clutch power-assisted mechanism, vehicle clutch mechanism and vehicle |
| CN104455085A (en) * | 2014-11-25 | 2015-03-25 | 长春一东离合器股份有限公司 | Compensation device of air booster |
| CN106151310A (en) * | 2015-03-25 | 2016-11-23 | 上海汽车集团股份有限公司 | Hydraulic control mechanism, ECU, clutch system and automobile |
| CN106932195B (en) * | 2015-12-30 | 2019-01-29 | 中国人民解放军装甲兵工程学院 | The mechanically aided formula clutch operating device intelligent Detection of armored vehicle |
| CN106704576B (en) * | 2017-01-03 | 2018-04-10 | 特百佳动力科技有限公司 | A kind of automatic clutch control system for vehicle manual gearbox |
| CN107781321B (en) * | 2017-10-16 | 2019-05-28 | 潍柴动力股份有限公司 | A kind of clutch controller and control method |
| CN107901749A (en) * | 2017-12-14 | 2018-04-13 | 茵卡动力新能源江苏有限公司 | A kind of automatic clutch actuator |
| CN108775351A (en) * | 2018-08-03 | 2018-11-09 | 国机重工（洛阳）建筑机械有限公司 | A kind of road roller clutch automatic controls |
| CN109386601B (en) * | 2018-12-11 | 2023-09-05 | 中国重汽集团济南动力有限公司 | Passenger train separation and reunion signal acquisition system |
| CN110043579B (en) * | 2019-05-13 | 2024-01-26 | 温州市东启汽车零部件制造有限公司 | Working cylinder assembly with hydraulic power-assisted clutch |
| CN114046318A (en) * | 2021-11-25 | 2022-02-15 | 潍柴动力股份有限公司 | Cylinder pressure-based clutch control method, device and equipment |
| CN114857183A (en) * | 2022-05-20 | 2022-08-05 | 潍柴动力股份有限公司 | Pneumatic clutch control method and device |
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2007
- 2007-09-29 CN CNB2007100927883A patent/CN100494724C/en not_active Expired - Fee Related
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| 液压电控离合器结合速度控制. 雷雨龙等.汽车技术，第12期. 2005 |
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| CN101158378A (en) | 2008-04-09 |
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Granted publication date: 20090603 Termination date: 20100929 |