CN208203986U - A kind of double-clutch speed changer safety control system and vehicle - Google Patents
A kind of double-clutch speed changer safety control system and vehicle Download PDFInfo
- Publication number
- CN208203986U CN208203986U CN201820664477.3U CN201820664477U CN208203986U CN 208203986 U CN208203986 U CN 208203986U CN 201820664477 U CN201820664477 U CN 201820664477U CN 208203986 U CN208203986 U CN 208203986U
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- clutch
- control unit
- double
- speed changer
- control system
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Abstract
The utility model belongs to transmission control technical field, disclosing a kind of double-clutch speed changer safety control system and vehicle, double-clutch speed changer safety control system includes automatic gear-box control unit, automatic gear-box executing agency, hydraulic control unit, engine electronic control unit and engine torque executing agency.Double-clutch speed changer safety control system provided by the utility model, when the clutch presentation failure of hydraulic control unit is unable to pressure release state, engine electronic control unit can control the movement of engine torque executing agency and force to reduce engine torque, automatic gear-box control unit controls the movement of automatic gear-box executing agency and forces to neutral state, engine torque after reduction cannot pass through the automatic gear-box executing agency in neutral gear and be transmitted to differential mechanism, and then still be able to realize brake, guarantee the safety of vehicle.
Description
Technical field
The utility model belongs to transmission control technical field, especially a kind of double-clutch speed changer safety control system and
Vehicle.
Background technique
Double-clutch speed changer (DCT) is in order to guarantee that car gear shifting power does not interrupt, by transmission gear according to odd number shelves
It is arranged apart with even gear, and odd number shelves and even gear is made to be connected respectively with a clutch.Double clutches of automatic gear-box
Device switching and control multi-pass cross hydraulic control system realization, and hydraulic control system refers to receiving the control signal of TCU, passes through tune
Movement of the fuel-economizing hydraulic coupling to control two clutch actuators meets vehicle functions such as disengagement, the engagements of realizing clutch
Automatic control demand.
As shown in Figure 1, the controlling brancher of each clutch 01 of the hydraulic control system of existing double clutch automatic speed changing case
On at least provided with pressure-control valve 02 and safety valve 03, wherein.Pressure-control valve 02 adjusts the pressure for entering clutch 01
The pressure of the hydraulic oil of chamber.When needing the pressure chamber to clutch 01 to carry out pressure release, pass through automatic gear-box control unit (TCU)
Control signal-off safety valve 03, do not continue to the pressure chamber pressure supply to clutch 01, the pressure chamber automatic leakage of clutch 01
Pressure realizes throw-out-of clutch.
The safety valve 03 being arranged on the controlling brancher of each clutch 01 of the double clutch automatic speed changing case of the prior art, needs
By the on-off of TCU control safety valve 03 and then the pressure release of realization clutch 01, and then realize engine torque by double clutches
Automatic gear-box is transferred to the cutting of transmission process on differential mechanism, to realize that brake ensures vehicle safety.But if clutch
01 when itself breaking down, even if disconnections of control safety valve 03 cannot guarantee that the pressure release of clutch 01, engine torsion
Square still transmits, and great danger will be present in vehicle at this time；Furthermore pressure-control valve is used on prior art controlling brancher simultaneously
02 and safety valve 03, the quantity of valve is increased, and then increase hardware cost, and lead to double clutch automatic speed changing case fluid die block
Product is excessive.
Utility model content
The purpose of the utility model is to provide a kind of double-clutch speed changer safety control system and vehicles, to solve existing skill
Technical problem in art, even if it can also prevent biography of the engine torque to differential mechanism in clutch faults itself
It is defeated, and then guarantee the safety of vehicle.
The technical solution adopted in the utility model is as follows:
A kind of double-clutch speed changer safety control system, the double-clutch speed changer safety control system includes hydraulic control
Unit, the hydraulic control unit include:
First pressure sensor, the activating pressure for real-time monitoring first clutch；
Second pressure sensor, the activating pressure for real-time monitoring second clutch；
Wherein: the double-clutch speed changer safety control system further includes automatic gear-box control unit, automatic gear-box
Executing agency, engine electronic control unit and engine torque executing agency；
The input terminal of the automatic gear-box control unit is separately connected the first pressure sensor and second pressure
The output end of both force snesors；
The output end of the automatic gear-box control unit connects the input terminal of the engine electronic control unit, is used for
According to the monitoring signals of the first pressure sensor and/or the monitoring signals of the second pressure sensor to the engine
Electronic control unit sends the first command signal；
The output end of the engine electronic control unit connects the engine torque executing agency, for according to
First command signal controls engine torque executing agency execution movement to reduce engine torque；
The engine electronic control unit is also used to engine torque described in real-time monitoring, and according to the institute monitored
It states engine torque and sends the second command signal to the automatic gear-box control unit；
The output end of the automatic gear-box control unit is also connected with automatic gear-box executing agency, for according to described the
The control automatic gear-box executing agency execution of two command signals is acted to neutral gear.
Double-clutch speed changer safety control system as described above, wherein preferably, in the first clutch connection
Entreat oil feed line；
It is provided with the first control valve on connecting line between the first clutch and the central oil feed line, it is described
First control valve is used to control the closure degree of the first clutch；
The second clutch can connect the central oil feed line；
It is provided with the second control valve on connecting line between the second clutch and the central oil feed line, it is described
Second control valve is used to control the closure degree of the second clutch.
Double-clutch speed changer safety control system as described above, wherein preferably, first control valve and described
Second control valve is provided with one.
Double-clutch speed changer safety control system as described above, wherein preferably, the first clutch and described
The first accumulator is also equipped on connecting line between first control valve；
The second accumulator is also equipped on connecting line between the second clutch and second control valve.
Double-clutch speed changer safety control system as described above, wherein preferably, first accumulator and described
Second accumulator is spring accumulator.
Double-clutch speed changer safety control system as described above, wherein preferably, first control valve and described
Second control valve is ratio adjusting valve.
Double-clutch speed changer safety control system as described above, wherein preferably, the pressure release of the ratio adjusting valve
Fuel tank is connected at mouthful.
Double-clutch speed changer safety control system as described above, wherein preferably, the oil inlet of the ratio adjusting valve
First filter is provided at mouthful.
Double-clutch speed changer safety control system as described above, wherein preferably, the ratio adjusting valve it is fuel-displaced
The second filter is provided at mouthful.
A kind of vehicle, in which: the vehicle includes above-described double-clutch speed changer safety control system.
Compared with prior art, double-clutch speed changer safety control system provided by the utility model, passes through first pressure
The activating pressure of sensor real-time monitoring first clutch passes through the engagement of second pressure sensor real-time monitoring second clutch
Pressure, corresponding activating pressure value are transferred to automatic gear-box control unit, according to setting inside automatic gear-box control unit
Whether condition multilevel iudge first clutch is in malfunction, judges whether second clutch is in malfunction.When automatic
When gear box control unit judges that first clutch and/or second clutch are in malfunction, automatic gear-box control unit
The first command signal can be sent to engine electronic control unit；Engine electronic control unit receives the first instruction letter
After number, engine torque executing agency execution movement is controlled to reduce engine torque according to the first command signal；Here
Engine torque executing agency refers mainly to be clutch gas pedal, and engine electronic control unit forces clutch gas pedal aperture
Reduce, reduces the torque of engine.Meanwhile engine electronic control unit also real-time monitoring engine torque, and according to monitoring
The engine torque arrived sends the second command signal to automatic gear-box control unit；Automatic gear-box control unit according to this
The control automatic gear-box executing agency execution of two command signals is acted to neutral gear.When engine side is in low torque, at speed changer
In neutral state, then the torque of engine will cannot pass to the differential mechanism of the speed changer other side, and then ensure even if clutch
Failure, vehicle also can be realized brake, it is ensured that vehicle safety.
Double-clutch speed changer safety control system provided by the utility model, in first clutch and/or second clutch
When presentation failure is unable to pressure release state, engine torque is forced to reduce, and automatic gear-box executing agency forces to neutral state, drop
Engine torque after low cannot pass through the automatic gear-box executing agency in neutral gear and be transmitted to differential mechanism, and then prevent
Engine torque is transmitted to differential mechanism, realizes vehicle brake, vehicle when ensure that first clutch and/or second clutch failure
Safety.
Detailed description of the invention
Fig. 1 is the hydraulic control system configuration schematic diagram of the double clutch automatic speed changing case of the prior art；
Fig. 2 is double-clutch speed changer safety control system structural schematic diagram provided by the utility model；
Fig. 3 is hydraulic control unit structural schematic diagram.
Component label instructions:
01- clutch, 02- pressure-control valve, 03- safety valve；
1- automatic gear-box control unit；
2- automatic gear-box executing agency；
3- hydraulic control unit；
31- first clutch, 32- first pressure sensor, 33- second clutch, 34- second pressure sensor, 35-
One control valve, the second control valve of 36-, 361- fuel tank, 362- first filter, the second filter of 363-, the first accumulator of 37-,
The second accumulator of 38-；
4- engine electronic control unit；
5- engine torque executing agency；
The center 6- oil feed line.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and cannot be construed to the utility model
Limitation.
The embodiments of the present invention provide a kind of double-clutch speed changer safety control system, please refer to Fig. 2 and Fig. 3 institute
Show, double-clutch speed changer safety control system includes automatic gear-box control unit 1, automatic gear-box executing agency 2, hydraulic control
Unit 3, engine electronic control unit 4 and engine torque executing agency 5 processed.
Hydraulic control unit 3 includes first pressure sensor 32 and second pressure sensor 34；First pressure sensor 32
Activating pressure for real-time monitoring first clutch 31；Second pressure sensor 34 is for real-time monitoring second clutch 33
Activating pressure；The input terminal of automatic gear-box control unit 1 connects first pressure sensor 32 and second pressure sensor simultaneously
Both 34 output end；The input terminal of the output end connection engine electronic control unit 4 of automatic gear-box control unit 1, is used
According to the monitoring signals of the monitoring signals of first pressure sensor 32 and/or second pressure sensor 34 to Motronic control maps control
Unit 4 processed sends the first command signal；The output end of engine electronic control unit 4 connects engine torque executing agency 5, uses
It acts in controlling 5 execution of engine torque executing agency according to the first command signal to reduce engine torque；Motronic control maps
Control unit 4 is also used to real-time monitoring engine torque, and controls list to automatic gear-box according to the engine torque monitored
Member 1 sends the second command signal；The output end of automatic gear-box control unit 1 is also connected with automatic gear-box executing agency 2, is used for
2 execution of automatic gear-box executing agency is controlled according to the second command signal to act to neutral gear.
The double-clutch speed changer safety control system of the above structure, by 32 real-time monitoring first of first pressure sensor from
The activating pressure of clutch 31, it is corresponding to connect by the activating pressure of 34 real-time monitoring second clutch 33 of second pressure sensor
Combined pressure force value is transferred to automatic gear-box control unit 1, according to setting condition multilevel iudge inside automatic gear-box control unit 1
Whether whether first clutch 31 is in malfunction, judge second clutch 33 in malfunction.Here setting condition
Refer to automatic gear-box system hydraulic system work system pressure, such as system pressure in 15~30bar this wider model
It encloses, system pressure can also be maintained within a relatively narrow pressure limit, such as can be the pressure of 25bar.
When automatic gear-box control unit 1 judges first clutch 31 and/or second clutch 33 is in malfunction,
At this point, automatic gear-box control unit 1 can be to Motronic control maps in order to prevent engine torque from being further continued for being transmitted to differential mechanism
Control unit 4 sends the first command signal, after engine electronic control unit 4 receives first command signal, according to the
One command signal controls 5 execution of engine torque executing agency movement to reduce engine torque；Here engine torque is held
Row mechanism 5 refers mainly to be clutch gas pedal, and engine electronic control unit semi-finals clutch gas pedal aperture reduces, and reduces
The torque of engine.Meanwhile the also real-time monitoring engine torque of engine electronic control unit 4, and started according to what is monitored
Machine torque sends the second command signal to automatic gear-box control unit 1.Specifically, when decrease in engine torque to setting value,
Here setting value refers to and guarantees minimum clutch gas pedal aperture corresponding torque when engine is not flame-out, Motronic control maps
Control unit 4 to automatic gear-box control unit 1 send the second command signal, automatic gear-box control unit 1 according to this second
Command signal control 2 execution of automatic gear-box executing agency is acted to neutral gear.Here automatic gear-box executing agency 2 compared with
Technology is the same, refers to change gear and the synchronizer being used cooperatively with change gear and selector fork component.Although at this point,
One clutch 31 and/or second clutch 33 are presented failure and are unable to pressure release state, but at 2 entirety of automatic gear-box executing agency
In neutral state, engine torque cannot pass through the automatic gear-box executing agency 2 in neutral gear and be transmitted to differential mechanism, Jin Ershi
The prevention that engine torque is transmitted to differential mechanism is showed, has realized vehicle brake, when ensure that 3 malfunction of hydraulic control unit
The safety of vehicle.
In the prior art, double-clutch speed changer includes a first clutch with first hydraulic cylinder and one has the
The second clutch of two hydraulic cylinders.It can use this double clutch device and intervene first group of change gear and second group of gear shift tooth
Wheel.Such as first clutch can intervene first group of change gear, second clutch can intervene second group of change gear.It can be with
According to the operating process of different moments, perhaps (such as synchronous) occurs or holds in the time interval of overlapping or even simultaneously
Row operation.Such as can be executed in one group of change gear with very big flexibility and pluck shelves operation, in another group of change gear
It executes and hangs shelves operation.
Change gear in above description and the synchronizer and selector fork being used cooperatively with change gear collectively constitute
For the dynamic gear box actuator 2 of the present embodiment.And to first clutch and second clutch and the corresponding control group of the two
Part is referred to as hydraulic control unit 3, and in the prior art, the system of hydraulic control unit 3 refers in addition to including hydraulic Jie containing hydraulic medium
It further include a variety of different hydraulic control members except matter source (such as device with an oil pump or oil pressure pump or multiple oil pumps)
Part and hydraulic inlet, hydraulic efferent duct and internal duct, and it is used for the connector and oil circuit of hydraulic medium (such as machine oil), from
Hydraulic oil is sucked in the fuel tank or fuel tank of oil pump low-pressure side, is then pumped into hydraulic oil input pipe from oil pump high-pressure side as hydraulic oil
Among, (at least partly), which is recycled, in hydraulic oil input pipe and efferent duct is returned among fuel tank with lower oil pressure later.
In the present embodiment, specifically, as shown in figure 3, hydraulic control component 3 includes being located at two independent control branch roads
Element, one of controlling brancher for give first clutch 31 provide hydraulic oil, shunted from central oil feed line 6
It arrives, the first control valve 35, first pressure sensor 32 and first clutch 31 is disposed on the controlling brancher；Another control
Branch processed for give second clutch 33 provide hydraulic oil, also shunt and obtain from central oil feed line 6, on the controlling brancher according to
It is secondary to be provided with the first control valve 35, second pressure sensor 34 and second clutch 33.
First clutch 31 can be operated using liquid medium with pressure, and connect central oil feed line 6.
Second clutch 33 can be operated using liquid medium with pressure, and connect central oil feed line 6.
First control valve 35 is arranged on the connecting line between first clutch 31 and central oil feed line 6, for controlling
The closure degree of first clutch 31 processed；In the present embodiment, the first control valve 35 is ratio adjusting valve.
Second control valve 36 is arranged on the connecting line between second clutch 33 and central oil feed line 6, for controlling
The closure degree of second clutch 33 processed；In the present embodiment, the second control valve 36 is ratio adjusting valve.
First pressure sensor 32 is arranged on the connecting line between first clutch 31 and the first control valve 35, uses
In the activating pressure of the first clutch 31 of real-time monitoring hydraulic control unit 3, activating pressure herein refer to supply first from
The pressure of the hydraulic oil of clutch 31.
Second pressure sensor 34 is arranged on the connecting line between second clutch 33 and the second control valve 36, uses
In the activating pressure of the second clutch 33 of real-time monitoring hydraulic control unit 3；Activating pressure herein refer to supply second from
The pressure of the hydraulic oil of clutch 33.
Wherein: as the optimal technical scheme of the present embodiment, please continue to refer to shown in Fig. 3, the first control valve 35 only has one
It is a, the second control valve 36 only one.Due to the first clutch 31 and second clutch 33 of the present embodiment it is equal only one, and
The safety valve for the truncation of hydraulic medium oil is not additionally provided with as the prior art, at this point, in order to prevent engine torque
Transmission to differential mechanism, automatic gear-box control unit 1 can only work according to the process of being described below:
Automatic gear-box control unit 1 sends the first command signal, Motronic control maps control to engine electronic control unit 4
After unit 4 processed receives first command signal, it is dynamic that the execution of engine torque executing agency 5 is controlled according to the first command signal
Make to reduce engine torque；Here engine torque executing agency 5 refers mainly to be clutch gas pedal, Motronic control maps control
Unit semi-finals clutch gas pedal aperture processed reduces, and reduces the torque of engine.Meanwhile engine electronic control unit 4 is also real
When monitoring engine torque, and according to the engine torque monitored to automatic gear-box control unit 1 send second instruction believe
Number；Specifically, when decrease in engine torque is to setting value, setting value here, refer to guarantee engine do not stop working it is corresponding most
Small clutch gas pedal aperture, engine electronic control unit 4 send the second command signal to automatic gear-box control unit 1,
Automatic gear-box control unit 1 controls 2 execution of automatic gear-box executing agency according to second command signal and acts to neutral gear.This
When, although first clutch 31 and/or second clutch 33 are presented failure and are unable to pressure release state, automatic gear-box executes machine
Generally in neutral state, engine torque cannot pass through the automatic gear-box executing agency 2 in neutral gear and is transmitted to differential structure 2
Device, and then the prevention that engine torque is transmitted to differential mechanism is realized, vehicle brake is realized, ensure that hydraulic control unit 3
The safety of vehicle when malfunction.
So double-clutch speed changer safety control system provided by the present embodiment, for the hydraulic control after above improve
Unit 3 processed carries out the fault detection of both first clutch 31 and second clutch 33 and failure solves, to ensure the peace of vehicle
Entirely.Meanwhile on the one hand the hydraulic control unit 3 after improving reduces hard due to reducing the quantity of the valve on controlling brancher
Part cost, on the other hand, the volume that double clutch automatic speed changing case hydraulic module may be implemented reduce, i.e. the hydraulic control of the present embodiment
The reduction of the volume of 3 this module of unit processed.
In addition, the optimal technical scheme as the present embodiment, the connection between first clutch 31 and the first control valve 35
The first accumulator 37 is also equipped on pipeline；It is also equipped on connecting line between second clutch 33 and the second control valve 36
Second accumulator 38.First accumulator 37 and the second accumulator 38 are spring accumulator.First accumulator 37 and the second storage
Can device 38 could be used for cut-off hydraulic vibration, and then guarantee respectively first clutch 31 stabilization and second clutch 33 it is steady
It is fixed.
It is connected at the pressure relief opening of ratio adjusting valve as the optimal technical scheme of the present embodiment please continue to refer to shown in Fig. 3
There is fuel tank 361.Fuel tank 361 can play the role of collecting hydraulic oil.
It is arranged at the oil inlet of ratio adjusting valve as the optimal technical scheme of the present embodiment please continue to refer to shown in Fig. 3
There is first filter 362.The oil outlet of ratio adjusting valve is provided with the second filter 363.Here ratio adjusting valve includes
First control valve 35 and the second control valve 36.It is equal i.e. at the oil inlet of the first control valve 35 and at the oil inlet of the second control valve 36
It is provided with first filter 362；The oil outlet of first control valve 35 and the oil outlet of the second control valve 36 are provided with
Tow filtrator 363.Ratio adjusting valve, which can be entered, by first filter 362 to avoid the impurity particle in hydraulic oil leads to ratio
Regulating valve blocking；Meanwhile proportion adjustment is entered by the impurity particle that the second filter 363 can carry to avoid hydraulic oil reflux
Valve causes ratio adjusting valve to block.
Another embodiment of the utility model provides a kind of vehicle, in which: vehicle includes the above double-clutch speed changer peace
Full control system.
The structure, features, and effects of the present invention is described in detail based on the embodiments shown in the drawings, with
Upper is only the preferred embodiment of the utility model, but the present invention does not limit the scope of implementation as shown in the drawings, all according to this
Change or equivalent example modified to equivalent change made by the conception of utility model, still without departing from specification and diagram institute
When the spirit covered, it should be within the protection scope of the present utility model.
Claims (10)
1. a kind of double-clutch speed changer safety control system, the double-clutch speed changer safety control system includes hydraulic control list
First (3), the hydraulic control unit (3) include:
First pressure sensor (32) is used for the activating pressure of real-time monitoring first clutch (31)；
Second pressure sensor (34), the activating pressure of the second clutch (33) for real-time monitoring；
It is characterized by: the double-clutch speed changer safety control system further includes automatic gear-box control unit (1), automatic change
Su Xiang executing agency (2), engine electronic control unit (4) and engine torque executing agency (5)；
The input terminal of the automatic gear-box control unit (1) is separately connected the first pressure sensor (32) and described second
The output end of both pressure sensors (34)；
The output end of the automatic gear-box control unit (1) connects the input terminal of the engine electronic control unit (4), uses
According to the monitoring signals of the monitoring signals of the first pressure sensor (32) and/or the second pressure sensor (34) to
The engine electronic control unit (4) sends the first command signal；
The output end of the engine electronic control unit (4) connects the engine torque executing agency (5), for according to institute
It states the first command signal and controls engine torque executing agency (5) the execution movement to reduce engine torque；
The engine electronic control unit (4), is also used to engine torque described in real-time monitoring, and according to monitoring
Engine torque sends the second command signal to the automatic gear-box control unit (1)；
The output end of the automatic gear-box control unit (1) is also connected with automatic gear-box executing agency (2), for according to
Second command signal controls automatic gear-box executing agency (2) execution and acts to neutral gear.
2. double-clutch speed changer safety control system according to claim 1, it is characterised in that:
The first clutch (31) connects central oil feed line (6)；
The first control valve is provided on connecting line between the first clutch (31) and the central oil feed line (6)
(35), first control valve (35) is used to control the closure degree of the first clutch (31)；
Second clutch (33) the connection central oil feed line (6)；
The second control valve is provided on connecting line between the second clutch (33) and the central oil feed line (6)
(36), second control valve (36) is used to control the closure degree of the second clutch (33).
3. double-clutch speed changer safety control system according to claim 2, it is characterised in that:
First control valve (35) and second control valve (36) are provided with one.
4. double-clutch speed changer safety control system according to claim 2, it is characterised in that:
The first accumulator is also equipped on connecting line between the first clutch (31) and first control valve (35)
(37)；
The second accumulator is also equipped on connecting line between the second clutch (33) and second control valve (36)
(38)。
5. double-clutch speed changer safety control system according to claim 4, it is characterised in that:
First accumulator (37) and second accumulator (38) are spring accumulator.
6. double-clutch speed changer safety control system according to claim 2, it is characterised in that:
First control valve (35) and second control valve (36) are ratio adjusting valve.
7. double-clutch speed changer safety control system according to claim 6, it is characterised in that:
Fuel tank (361) are connected at the pressure relief opening of the ratio adjusting valve.
8. double-clutch speed changer safety control system according to claim 6, it is characterised in that:
First filter (362) are provided at the oil inlet of the ratio adjusting valve.
9. double-clutch speed changer safety control system according to claim 8, it is characterised in that:
The oil outlet of the ratio adjusting valve is provided with the second filter (363).
10. a kind of vehicle, it is characterised in that: the vehicle includes the described in any item double-clutch speed changer peaces of claim 1-9
Full control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820664477.3U CN208203986U (en) | 2018-05-04 | 2018-05-04 | A kind of double-clutch speed changer safety control system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820664477.3U CN208203986U (en) | 2018-05-04 | 2018-05-04 | A kind of double-clutch speed changer safety control system and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN208203986U true CN208203986U (en) | 2018-12-07 |
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|---|---|---|---|
| CN201820664477.3U Expired - Fee Related CN208203986U (en) | 2018-05-04 | 2018-05-04 | A kind of double-clutch speed changer safety control system and vehicle |
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| Country | Link |
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| CN (1) | CN208203986U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943919A (en) * | 2021-03-11 | 2021-06-11 | 南京信息职业技术学院 | New energy automobile double clutch control device |
-
2018
- 2018-05-04 CN CN201820664477.3U patent/CN208203986U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943919A (en) * | 2021-03-11 | 2021-06-11 | 南京信息职业技术学院 | New energy automobile double clutch control device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181207 Termination date: 20210504 |
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| CF01 | Termination of patent right due to non-payment of annual fee |