CN101788380A - Simulation system for diaphragm spring of clutch - Google Patents
Simulation system for diaphragm spring of clutch Download PDFInfo
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- CN101788380A CN101788380A CN200910045719A CN200910045719A CN101788380A CN 101788380 A CN101788380 A CN 101788380A CN 200910045719 A CN200910045719 A CN 200910045719A CN 200910045719 A CN200910045719 A CN 200910045719A CN 101788380 A CN101788380 A CN 101788380A
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- diaphragm spring
- oil cylinder
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- 238000004088 simulation Methods 0.000 title abstract description 7
- 230000002706 hydrostatic effect Effects 0.000 claims description 23
- 238000006073 displacement reaction Methods 0.000 claims description 17
- 239000002828 fuel tank Substances 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 50
- 239000000295 fuel oil Substances 0.000 description 13
- 238000012360 testing method Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009183 running Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention discloses a simulation system for a diaphragm spring of a clutch, which comprises an electronic control unit, a hydraulic control subsystem and a clutch control subsystem, wherein the hydraulic control subsystem comprises an oil tank, a constant delivery pump and a motor; the clutch control subsystem comprises a clutch control cylinder, a first pressure sensor arranged on the clutch control cylinder, and a proportional pressure valve arranged on the clutch control cylinder and used for controlling the pressure in the clutch control cylinder according to a differential value between the actual pressure in the clutch control cylinder and the preset target pressure so as to make the controlled actual pressure reach the target pressure; and the target pressure serves as load resistance of the diaphragm spring of the clutch. Compared with the prior art, the simulation system for the diaphragm spring of the clutch can simulate load resistance of different types of diaphragm springs of clutches.
Description
Technical field
The present invention relates to the analogue system of clutch diaphragm spring.
Background technology
Along with the fast development of automotive engineering, the automatic gear for vehicle of various ways has appearred, mainly contains: hydraulic mechanical type automatic transmission (AT), mechanical continuously-variable transmission (CVT) and electric control mechanical type automatic speed variator (AMT).Wherein, the AMT variator is in conjunction with the self shifter and the high characteristics of manual transmission transmission efficiency of automatic transmission; have advantages such as the existing manual transmission production investment of the desired high fuel economy of present automobile industry development, low emission and protection, just be subjected to the favor of each automobile vendor.
Fig. 1 shows the analogue system synoptic diagram of clutch diaphragm spring in the prior art AMT variator.As described in Figure 1, comprise fuel tank 10, fixed displacement pump 11, motor 12, proportional pressure control valve 13, filtrator 14, retaining valve 15, tensimeter 16, clutch oil cylinder 17, proportional flow control valve 18, clutch position sensor 19.Wherein, fixed displacement pump 11 is used for extracting fuel oil from fuel tank 10, provides system required flow.Proportional pressure control valve 13 works to regulate oil pressure and stable oil pressure.Clutch oil cylinder 17 can be divided into left and right two chambers 170,171, and wherein, right chamber 171 comprises piston 172, piston push rod 173 and is located at loading spring 174 on the piston push rod 173.Proportional flow control valve 18 can automatically controlled mode be realized the throttling of flow is controlled, and makes flow act on left chamber 17, and clutch position sensor 19 is used for the position of sensing piston 172, and then obtains the resistance size of corresponding loading spring 174 according to described position.When carrying out l-G simulation test, by control ratio flow valve 18, make pressure oil enter the left chamber of clutch oil cylinder 17, the resistance promotion piston push rod 173 that pressure oil overcomes loading spring 174 moves to right, clutch position sensor 19 detects the position of piston push rod 173, according to the testing result of clutch position sensor 19, simulate the load resistance of the clutch diaphragm spring of corresponding described loading spring 174, realize the closed-loop control of clutch position.
Yet there is following problem in the position control analogue system of clutch coupling in the above-mentioned AMT variator: 1, the efficient of hydraulic system testing table is low.The hydraulic system constant pressure source is made up of fixed displacement pump and proportional pressure control valve.
When carrying out the hydraulic system test, fixed displacement pump is in running order all the time, has a large amount of pressure oil passing ratio surplus valve unloadings to flow back to fuel tank, causes the efficient of hydraulic system testing table low; 2, the load resistance size of spring can not be controlled.After spring installs, because spring rate and spring pre compressed magnitude are constant, so the load resistance of spring is according to fixing slope linear change.Because the load resistance of the diaphragm spring of different model clutch coupling is different, and be non-linear, in order to satisfy the versatility of AMT variator electricity liquid simulation test stand, simulate the load resistance of the diaphragm spring of different model clutch coupling, therefore be necessary to make the load resistance of clutch coupling controlled.
Summary of the invention
The invention provides a kind of analogue system of clutch diaphragm spring, solve the problem that to carry out emulation to the load resistance of dissimilar clutch diaphragm springs in the prior art.
The invention provides a kind of analogue system of clutch diaphragm spring, comprise electronic control unit, hydrostatic control subsystem and Clutch Control subsystem, described hydrostatic control subsystem comprises: fuel tank, fixed displacement pump, motor; It is characterized in that:
Described Clutch Control subsystem comprises:
The Clutch Control oil cylinder;
Be located at first pressure transducer of Clutch Control oil cylinder, be used to detect the in-oil cylinder actual pressure of described Clutch Control;
Be located at the proportional pressure valve of Clutch Control oil cylinder, controlled by electronic control unit, be used for regulating and control the in-oil cylinder pressure of Clutch Control, make that the actual pressure through regulation and control reaches goal pressure according to the difference between in-oil cylinder actual pressure of Clutch Control and the default goal pressure; Described goal pressure is used for the load resistance as clutch diaphragm spring.
Alternatively, described hydrostatic control subsystem also comprises second pressure transducer and the proportional pressure control valve that is used to regulate oil pressure and stable oil pressure.
Alternatively, described first, second pressure transducer comprises piezoelectric sensor.
Alternatively, the in-oil cylinder pressure of described regulation and control Clutch Control is to realize by the pid algorithm of electronic control unit.
The present invention provides a kind of analogue system of clutch diaphragm spring in addition, comprises electronic control unit, hydrostatic control subsystem and Clutch Control subsystem, and described hydrostatic control subsystem comprises: fuel tank, fixed displacement pump, motor; It is characterized in that:
Described Clutch Control subsystem comprises:
Clutch Control oil cylinder with left and right chamber;
Be located at first pressure transducer of the right chamber of Clutch Control oil cylinder, be used to detect the actual pressure of described right chamber;
Be located at the proportional pressure valve of the right chamber of Clutch Control oil cylinder, controlled by electronic control unit, be used for regulating and control the pressure of right chamber, make that the pressure in the right chamber reaches goal pressure according to the difference between the actual pressure of right chamber and the default goal pressure; Described goal pressure is used for the load resistance as clutch diaphragm spring.
Alternatively, described hydrostatic control subsystem also comprises second pressure transducer and the accumulator that is used to regulate oil pressure and stable oil pressure.
Alternatively, described first, second pressure transducer comprises piezoelectric sensor.
Alternatively, also comprise the proportional flow control valve of being located at left chamber.
Alternatively, the pressure in the right chamber of described regulation and control is to realize by the pid algorithm of electronic control unit.
Compared with prior art; the analogue system of the present invention's clutch diaphragm spring required for protection; by pressure is adjusted in real time, make that actual pressure is approaching or equal goal pressure, realize emulation to the load resistance of dissimilar clutch diaphragm springs.
Description of drawings
Fig. 1 shows the structural representation of the analogue system of clutch diaphragm spring in the prior art AMT variator;
Fig. 2 shows the framework synoptic diagram of analogue system in first embodiment of clutch diaphragm spring of the present invention;
Fig. 3 shows in the analogue system of clutch diaphragm spring of the present invention, the structural representation of hydrostatic control subsystem and Clutch Control subsystem;
Fig. 4 shows the analogue system framework synoptic diagram in a second embodiment of clutch diaphragm spring of the present invention;
Fig. 5 shows in the analogue system of clutch diaphragm spring of the present invention, the structural representation of hydrostatic control subsystem and Clutch Control subsystem.
Embodiment
The present invention provides a kind of analogue system of clutch diaphragm spring.
Below in conjunction with accompanying drawing content of the present invention is elaborated.
See also Fig. 2, show the analogue system structural representation in one embodiment of clutch diaphragm spring of the present invention.As shown in Figure 2, the analogue system of described clutch diaphragm spring comprise electronic control unit (Electronic Control Unit, ECU) 20, be subjected to the hydrostatic control subsystem 21 and the Clutch Control subsystem 22 of electronic control unit 20 controls.
In electronic control unit 20, store a plurality of control programs that can send corresponding steering order in advance.
In actual engineering, the control method that is most widely used is ratio, integration, differential control, is called for short PID control.When specific implementation, electronic control unit 20 can be Programmable Logic Controller (PLC), and it utilizes Closed loop Control to realize PID control.Utilizing electronic control unit 20 to carry out PID control meeting is described in following specific embodiment.Because of the technology of electronic control unit 20 and PID control is well known to those skilled in the art, so do not repeat them here.
Please consult Fig. 3 separately, it has shown hydrostatic control subsystem and the system chart of Clutch Control subsystem in first embodiment in the analogue system of clutch diaphragm spring provided by the present invention.
In conjunction with Fig. 2 and Fig. 3, hydrostatic control subsystem 21 plays the effect of control fuel feeding.In actual applications, hydrostatic control subsystem 21 comprises fuel tank 210, fixed displacement pump 211, motor 212, filtrator 213, pressure transducer 214, proportional pressure control valve 215.
Fuel tank 210 is used to store fuel oil.According to the actual conditions of the engine that motor vehicle disposed, described fuel oil can comprise gasoline or diesel oil.
Fixed displacement pump 211 is connected to fuel tank 210 mutually, is used for extracting fuel oils and providing to other assemblies from fuel tank 210, for example engine.
Motor 212 is connected in fixed displacement pump 211, is used to convert electric energy to mechanical energy, drives fixed displacement pump 211 runnings.
Filtrator 213 is located between fixed displacement pump 211 and the fuel tank 210, is used for fuel oil is filtered.In the present embodiment, filtrator 213 can for example be a filter screen, but not as limit, in other embodiments, it also can comprise filter bag.
Pressure transducer 214 is used for the sensing oil pressure.
Proportional pressure control valve 215 is used for parameters such as the pressure, flow of controlled hydraulic system.
In addition, hydrostatic control subsystem 21 can also comprise retaining valve 216 at fixed displacement pump 211 places.
Because the technology of each assembly in the hydrostatic control subsystem 21 is well known to those skilled in the art, so do not repeat them here.
Clutch Control subsystem 22 comprises Clutch Control oil cylinder 220, pressure transducer 221 and proportional pressure valve 222.
Be provided with piston 223 in the inside of Clutch Control oil cylinder 220, piston 223 can be divided into Clutch Control oil cylinder 220 left and right two chambers 224,225, wherein left chamber 224 can be an enclosed vacuum environment, and the pressure in the right chamber 225 can be regulated and control.
222 of pressure transducer 221 and proportional pressure valves are located at right chamber 225 places.
Pressure transducer 221 is used for the pressure of sensing Clutch Control oil cylinder 220 right chambers 225, and will be sent to electronic control unit 20 with electrical signal form with described pressure corresponding informance.
In concrete the application, proportional pressure valve 222 is located at the right chamber 225 of Clutch Control oil cylinder 220, make to comprise that the Clutch Control subsystem 22 of Clutch Control oil cylinder 220, pressure transducer 221 and proportional pressure valve 222 can constitute a pressure environment of closed-loop control, realize the real time dynamic tracing of actual pressure goal pressure.Specifically, goal pressure is used to represent the load resistance of clutch diaphragm spring, and for different vehicles, the load resistance of clutch diaphragm spring all can be different.Therefore, can preestablish a corresponding goal pressure of the load resistance with the clutch diaphragm spring of described vehicle according to vehicle.In actual emulation, pressure transducer 221 is the actual pressure of the right chamber 225 of sensing in real time, and described pressure information is sent to electronic control unit 20 with electrical signal form; Electronic control unit 20 calculates the deviation of actual pressure and predefined goal pressure according to described pressure information, by certain control algolithm (can be pid control algorithm in the present embodiment), send steering order to proportional pressure valve 222 it is dynamically controlled the oil pressure in the right chamber 225.Described steering order specifically comprises: for example when actual pressure during less than goal pressure, control ratio pressure valve 222 increases the fuel oil output quantities, increases the oil pressure in the right chamber 225, is used to approach described relatively large goal pressure; When actual pressure during greater than goal pressure, control ratio pressure valve 222 reduces the fuel oil output quantity, reduces the oil pressure in the right chamber 225, is used to approach described less relatively goal pressure; When actual pressure near or when equaling goal pressure, control ratio pressure valve 222 keeps existing fuel oil output quantity as far as possible, make that the oil pressure in the right chamber 225 is stable, be used to approach the goal pressure of described relative equivalent.Just can realize pressure in the right chamber 225 of Clutch Control oil cylinder 220 by said method to the dynamic tracking of goal pressure, reach the purpose that the load resistance to the clutch diaphragm spring of described vehicle carries out emulation.Like this, the load resistance of clutch diaphragm spring of vehicle for other still can pass through the aforesaid operations step, carries out Simulation Application, should have similar effects.Than the shortcoming of hydraulic system testing table function singleness of the prior art, the analogue system of clutch diaphragm spring provided by the present invention can realize the load resistance of dissimilar clutch diaphragm springs is carried out emulation, has good versatility.
Please consult Fig. 4 and Fig. 5 separately, it has shown hydrostatic control subsystem and Clutch Control subsystem system chart in a second embodiment in the analogue system of clutch diaphragm spring provided by the present invention.
In conjunction with Fig. 4 and Fig. 5, described second embodiment and Fig. 2 and first embodiment shown in Figure 3 are roughly the same.The analogue system of clutch diaphragm spring comprises electronic control unit 20, controlled by electronic control unit 20 among described second embodiment hydrostatic control subsystem 23 and Clutch Control subsystem 24.
Hydrostatic control subsystem 23 comprises fuel tank 230, fixed displacement pump 231, motor 232, filtrator 233, pressure transducer 234, accumulator 235, retaining valve 236.
Especially, accumulator 235 is used for can storing fuel oil as auxiliary oil sources.Accumulator 235 senses the oil pressure shakiness at pressure transducer 234, when for example oil pressure descends, can carry out work, replenishes oil mass, reduces fixed displacement pump 231 fuel feeding, reduces motor 232 power, plays the effect of regulating oil pressure and stable oil pressure.Prior art by the running of accumulator 235, has the tangible effect of improving at aspects such as the driving power that reduces fixed displacement pump 231, energy savings, reduction noise, reduction equipment operation costs relatively.
In addition, Clutch Control subsystem 24 comprises Clutch Control oil cylinder 240, proportional flow control valve 241, pressure transducer 242 and proportional pressure valve 243.
Be provided with piston 244 in the inside of Clutch Control oil cylinder 240, piston 244 can be divided into Clutch Control oil cylinder 240 left and right two chambers 245,246.
Proportional flow control valve 241 is to be located at left chamber 245 places, is subjected to electronic control unit 20 controls, is used for flow is carried out throttling control, and fuel oil is provided to left chamber 245.
243 of pressure transducer 242 and proportional pressure valves are located at right chamber 246 places.
Pressure transducer 242 is used for the pressure of sensing Clutch Control oil cylinder 240 right chambers 246, and will be sent to electronic control unit 20 with described pressure corresponding informance.
In concrete the application, proportional flow control valve 241 and proportional pressure valve 243 are located at the left chamber 245 and the right chamber 246 of Clutch Control oil cylinder 240 respectively, make the Clutch Control subsystem 24 that includes proportional flow control valve 241, Clutch Control oil cylinder 240 and proportional pressure valve 243 can constitute a pressure environment of closed-loop control, realize the real time dynamic tracing of actual pressure goal pressure.Simulation process among its principle of work and first embodiment is similar.Therefore, can preestablish a corresponding goal pressure of the load resistance with the clutch diaphragm spring of described vehicle according to vehicle.Pressure transducer 242 can sense the actual pressure of right chamber 246 in real time, and described pressure information is sent to electronic control unit 20 with electrical signal form, electronic control unit 20 calculates the deviation of actual pressure and predefined goal pressure according to described pressure information, by certain control algolithm, send steering order to proportional pressure valve 243 and make it carry out the oil pressure of fuel oil is dynamically controlled.Pressure in the final right chamber 246 of realizing Clutch Control oil cylinder 240 is to the dynamic tracking of goal pressure, reaches the purpose that the load resistance to the clutch diaphragm spring of described vehicle carries out emulation.
Though oneself discloses the present invention as above with preferred embodiment, the present invention is defined in this.Any those skilled in the art without departing from the spirit and scope of the present invention, all can do various changes and modification, so protection scope of the present invention should be as the criterion with claim institute restricted portion.
Claims (9)
1. the analogue system of a clutch diaphragm spring comprises electronic control unit, hydrostatic control subsystem and Clutch Control subsystem, and described hydrostatic control subsystem comprises: fuel tank, fixed displacement pump, motor; It is characterized in that:
Described Clutch Control subsystem comprises:
The Clutch Control oil cylinder;
Be located at first pressure transducer of Clutch Control oil cylinder, be used to detect the in-oil cylinder actual pressure of described Clutch Control;
Be located at the proportional pressure valve of Clutch Control oil cylinder, controlled by electronic control unit, be used for regulating and control the in-oil cylinder pressure of Clutch Control, make that the actual pressure through regulation and control reaches goal pressure according to the difference between in-oil cylinder actual pressure of Clutch Control and the default goal pressure; Described goal pressure is used for the load resistance as clutch diaphragm spring.
2. the analogue system of clutch diaphragm spring according to claim 1 is characterized in that, described hydrostatic control subsystem also comprises second pressure transducer and the proportional pressure control valve that is used to regulate oil pressure and stable oil pressure.
3. the analogue system of clutch diaphragm spring according to claim 1 and 2 is characterized in that, described first, second pressure transducer comprises piezoelectric sensor.
4. the analogue system of clutch diaphragm spring according to claim 1 is characterized in that, the in-oil cylinder pressure of described regulation and control Clutch Control is to realize by the pid algorithm of electronic control unit.
5. the analogue system of a clutch diaphragm spring comprises electronic control unit, hydrostatic control subsystem and Clutch Control subsystem, and described hydrostatic control subsystem comprises: fuel tank, fixed displacement pump, motor; It is characterized in that:
Described Clutch Control subsystem comprises:
Clutch Control oil cylinder with left and right chamber;
Be located at first pressure transducer of the right chamber of Clutch Control oil cylinder, be used to detect the actual pressure of described right chamber;
Be located at the proportional pressure valve of the right chamber of Clutch Control oil cylinder, controlled by electronic control unit, be used for regulating and control the pressure of right chamber, make that the pressure in the right chamber reaches goal pressure according to the difference between the actual pressure of right chamber and the default goal pressure; Described goal pressure is used for the load resistance as clutch diaphragm spring.
6. the analogue system of clutch diaphragm spring according to claim 5 is characterized in that, described hydrostatic control subsystem also comprises second pressure transducer and the accumulator that is used to regulate oil pressure and stable oil pressure.
7. according to the analogue system of claim 5 or 6 described clutch diaphragm springs, it is characterized in that described first, second pressure transducer comprises piezoelectric sensor.
8. the analogue system of clutch diaphragm spring according to claim 5 is characterized in that, also comprises the proportional flow control valve of being located at left chamber.
9. the analogue system of clutch diaphragm spring according to claim 5 is characterized in that, the pressure in the right chamber of described regulation and control is to realize by the pid algorithm of electronic control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100457196A CN101788380B (en) | 2009-01-22 | 2009-01-22 | Simulation system for diaphragm spring of clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100457196A CN101788380B (en) | 2009-01-22 | 2009-01-22 | Simulation system for diaphragm spring of clutch |
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| Publication Number | Publication Date |
|---|---|
| CN101788380A true CN101788380A (en) | 2010-07-28 |
| CN101788380B CN101788380B (en) | 2012-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100457196A Active CN101788380B (en) | 2009-01-22 | 2009-01-22 | Simulation system for diaphragm spring of clutch |
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| CN (1) | CN101788380B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261396A (en) * | 2011-04-28 | 2011-11-30 | 天津市松正电动汽车技术股份有限公司 | Electrically controlled and hydraulically operated clutch control system |
| CN103307266A (en) * | 2012-03-05 | 2013-09-18 | 通用汽车环球科技运作有限责任公司 | Transmissioin clutch return spring pressure learn using pid control |
| CN106248366A (en) * | 2016-09-05 | 2016-12-21 | 中国石油天然气股份有限公司 | Automatic inflow control valve inflow characteristic testing device |
| CN106594261A (en) * | 2015-10-15 | 2017-04-26 | 上海汽车集团股份有限公司 | Hydraulic clutch operation system, control unit, gearbox and automobile |
| CN108444707A (en) * | 2018-04-16 | 2018-08-24 | 哈尔滨理工大学 | A kind of hydraulic loaded thrust bearing test experience device |
| CN110513403A (en) * | 2015-03-11 | 2019-11-29 | 美国轮轴制造公司 | The clutch type power transmission device of Actuation delays time with reduction |
| CN113944710A (en) * | 2021-11-02 | 2022-01-18 | 湖北三江航天万山特种车辆有限公司 | Parking brake system and vehicle |
| CN115574015A (en) * | 2022-09-26 | 2023-01-06 | 重庆长安汽车股份有限公司 | Wet-type double-clutch oil filling control method and system, electronic equipment and vehicle |
-
2009
- 2009-01-22 CN CN2009100457196A patent/CN101788380B/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261396A (en) * | 2011-04-28 | 2011-11-30 | 天津市松正电动汽车技术股份有限公司 | Electrically controlled and hydraulically operated clutch control system |
| CN103307266A (en) * | 2012-03-05 | 2013-09-18 | 通用汽车环球科技运作有限责任公司 | Transmissioin clutch return spring pressure learn using pid control |
| US9115805B2 (en) | 2012-03-05 | 2015-08-25 | GM Global Technology Operations LLC | Transmissioin clutch return spring pressure learn using PID control |
| CN103307266B (en) * | 2012-03-05 | 2016-04-20 | 通用汽车环球科技运作有限责任公司 | PID is used to control to obtain transmission clutch return spring pressure |
| CN110513403A (en) * | 2015-03-11 | 2019-11-29 | 美国轮轴制造公司 | The clutch type power transmission device of Actuation delays time with reduction |
| CN110513403B (en) * | 2015-03-11 | 2021-07-30 | 美国轮轴制造公司 | Clutched power transmission device with reduced actuation delay time |
| CN106594261A (en) * | 2015-10-15 | 2017-04-26 | 上海汽车集团股份有限公司 | Hydraulic clutch operation system, control unit, gearbox and automobile |
| CN106248366A (en) * | 2016-09-05 | 2016-12-21 | 中国石油天然气股份有限公司 | Automatic inflow control valve inflow characteristic testing device |
| CN108444707A (en) * | 2018-04-16 | 2018-08-24 | 哈尔滨理工大学 | A kind of hydraulic loaded thrust bearing test experience device |
| CN113944710A (en) * | 2021-11-02 | 2022-01-18 | 湖北三江航天万山特种车辆有限公司 | Parking brake system and vehicle |
| CN115574015A (en) * | 2022-09-26 | 2023-01-06 | 重庆长安汽车股份有限公司 | Wet-type double-clutch oil filling control method and system, electronic equipment and vehicle |
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| Publication number | Publication date |
|---|---|
| CN101788380B (en) | 2012-06-06 |
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Address after: 528000 room 601-604, building A, block, building 131, Jihua West Road, Chancheng District, Guangdong, Foshan Patentee after: CORUN HYBRID POWER TECHNOLOGY Co.,Ltd. Address before: 410205 No. 348 west slope, Changsha hi tech Development Zone, Hunan, 101, 102, Tongzi Patentee before: CORUN HYBRID POWER TECHNOLOGY Co.,Ltd. |
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Application publication date: 20100728 Assignee: WUXI MINGHENG HYBRID POWER TECHNOLOGY Co.,Ltd. Assignor: CORUN HYBRID POWER TECHNOLOGY Co.,Ltd. Contract record no.: 2018530000001 Denomination of invention: Simulation system for diaphragm spring of clutch Granted publication date: 20120606 License type: Common License Record date: 20180103 |
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Effective date of registration: 20220817 Address after: No.16 Gongxin Avenue, industrial park, Yifeng County, Yichun City, Jiangxi Province Patentee after: Jiangxi Dingsheng New Material Technology Co.,Ltd. Address before: 528000 601-604 room, block A, 1 floor, 131 Ji Hua Xi Road, Chancheng District, Foshan, Guangdong. Patentee before: CORUN HYBRID POWER TECHNOLOGY Co.,Ltd. |
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