CN105946567B - Vehicle automatic clutch system and its control method - Google Patents
Vehicle automatic clutch system and its control method Download PDFInfo
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- CN105946567B CN105946567B CN201610266321.5A CN201610266321A CN105946567B CN 105946567 B CN105946567 B CN 105946567B CN 201610266321 A CN201610266321 A CN 201610266321A CN 105946567 B CN105946567 B CN 105946567B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
- B60K23/02—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for main transmission clutches
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- Combustion & Propulsion (AREA)
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- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The present invention provides a kind of vehicle automatic clutch system and its control method, the vehicle automatic clutch system includes controller, automatic work pump, electric pushrod for driving automatic work to pump, clutch pedal switch and shift switch, the piston rod of clutch main pump is connected to clutch pedal, the oil cylinder of oil cylinder and the automatic work pump of clutch main pump passes through pipeline connection, the oil cylinder of automatic work pump is connected to by pipeline with the oil cylinder of clutch slave cylinder, the piston rod of clutch slave cylinder is connected to clutch, electric pushrod, clutch pedal switch and shift switch are connect with controller signals respectively, the piston rod of the power output end connection automatic work pump of electric pushrod.Vehicle automatic clutch system of the invention, driver can both make clutch separation by way of stepping on clutch pedal, can also make clutch separation by way of pressing shift switch, relative to existing repacking mode, it is easier to realize and reequip at low cost.
Description
Technical field
The invention belongs to vehicular clutch technical fields, more particularly to a kind of vehicle automatic clutch system and its control
Method.
Background technique
Under identical internal configuration, manual gear vehicle wants much lower relative to automatic catch vehicle price, still, manual gear
Vehicle needs first to step on clutch pedal, then pluck gear in shift, and clutch pedal needs frequent operation, the traffic congestion the case where
Under, it frequently steps on clutch pedal and the foot of driver is made to be easy to produce fatigue, be unfavorable for safe driving.
Thus, in some refitted cars, by change ECU and increase sensor come realize manual gear vehicle it is automatic from
It closes.But such repacking general expenses are higher, and a dynamic repacking is completed, clutch pedal disabler originally, just in case repacking
Section failure, then vehicle cannot travel.
Summary of the invention
It is easily achieved technical problem to be solved by the invention is to provide a kind of and reequips vehicle automatic clutch at low cost
Device system.
It is as follows that the present invention solves technical solution used by above-mentioned technical problem:
A kind of vehicle automatic clutch system is provided, which includes clutch main pump, clutch slave cylinder and clutch, institute
State vehicle automatic clutch system include controller, automatic work pump, the electric pushrod for driving automatic work pump, from
Clutch pedal switch and shift switch, the piston rod of the clutch main pump are connected to clutch pedal, the clutch main pump
The oil cylinder of oil cylinder and automatic work pump passes through pipeline and the clutch by pipeline connection, the oil cylinder of the automatic work pump
The oil cylinder of device wheel cylinder is connected to, and the piston rod of the clutch slave cylinder is connected to the clutch, and the electric pushrod, clutch are stepped on
Switching plate and shift switch are connected with the controller in a signal way. respectively, and the power output end of the electric pushrod connects automatic work
The piston rod of pump, wherein
The clutch pedal switch sends stopping signal when the clutch pedal is operated to the controller, described
Controller is based on the stopping signal and controls the electric pushrod not output power；
The shift switch sends separation signal to the controller when pressed, and the controller is not receiving institute
In the case where stating stopping signal, based on the separation signal control the electric pushrod output power pushed with this it is described from starting building
Make the piston rod pumped to retract, drives the piston of clutch slave cylinder in the piston rod back off procedure of the automatic work pump by oil pressure
Bar stretches out, and pushes clutch separation with this；
Binding signal is sent when the shift switch unclamps to the controller, the controller is not receiving described stop
In the case where machine signal, the electric pushrod output power is controlled based on the binding signal and pushes the automatic work to pump with this
Piston rod stretch out, the piston rod of automatic work pump drives the piston rod time of clutch slave cylinder by oil pressure during stretching out
It moves back, pushes clutch to combine with this.
Further, the electric pushrod includes motor, retarder and lead screw, and the input terminal of the retarder is connected to institute
The output end of motor is stated, the output end of the retarder connects the input terminal of the lead screw, and the output end connection of the lead screw is certainly
The piston rod of dynamic working barrel.
Further, the lead screw includes shell, screw rod and push rod, and the screw rod is connected to the output end of the retarder
On, the push rod is threaded in the outside of the screw rod, and the end of the push rod stretches out the shell and starts building certainly with described
Make the piston rod pumped connection, the confined planes of the restricted push rod rotation are arranged in the inside of the shell, so that the push rod
It is only capable of opposite shell to slide, the position sensor for detecting push rod sliding position is also connected on the outside of the push rod, it is described
The first limit switch and the second limit switch are provided on shell, setting limit switches trigger projection on the push rod, described
Push rod vehicular clutch in initial position is completely combined, and the switch triggering projection pushes down first limit switch to stop
The motor rotation, vehicular clutch is kept completely separate when the push rod stretches out shell maximum position, the switch triggering projection pressure
The second limit switch is stated to stop the motor rotation in residence.
Further, the vehicle automatic clutch system further includes being connected with the controller in a signal way. for detecting vehicle
The gradiometer of track gradient size, the brake for detecting vehicle brake signal being connected with the controller in a signal way. are opened
It closes, the vehicle speed sensor signal of the controller and vehicle connects and simultaneously acquires speed in real time, and the controller and vehicle start
Machine signals of rotational speed sensor is connected to acquire engine speed in real time.
Further, the motor pattern switching signal of the controller and vehicle connects.
Vehicle according to the invention automatic clutch system, without changing former vehicle ECU, and by the vehicle automatic clutch
After system is installed on vehicle, the function of clutch pedal does not fail, and driver both can be by way of stepping on clutch pedal
Make clutch separation, clutch separation can also be made by way of pressing shift switch, relative to existing repacking mode, more
It is easily achieved and reequips at low cost.Also, newly-increased clutch pedal switch is able to detect whether clutch pedal is operated, from
Clutch pedal switch do not step on and shift switch when pressed, by electric pushrod drive clutch slave cylinder work so that
Obtain clutch separation；It is not stepped in clutch pedal switch and shift switch is when being released, clutch is driven by electric pushrod
The work of device wheel cylinder realizes the automatic gear change function of manual gear vehicle so that clutch combines.Also, clutch pedal
Switch sends stopping signal when clutch pedal is operated to controller, and it is not defeated that controller is based on stopping signal control electric pushrod
Power out switches to conventional manual shift mode, switching is rapidly, conveniently as long as that is, clutch pedal is operated.
In addition, the present invention also provides a kind of control methods of above-mentioned vehicle automatic clutch system, which is characterized in that packet
It includes:
A, clutch pedal switch sends stopping signal when clutch pedal is operated to controller, and controller is based on described
Stopping signal controls electric pushrod not output power；
B, shift switch sends separation signal to controller when pressed, and controller is not receiving the stopping signal
In the case where, it is retracted based on the separation signal control electric pushrod output power with the piston rod that this pushes automatic work to pump,
It drives the piston rod of clutch slave cylinder to stretch out by oil pressure in the piston rod back off procedure of automatic work pump, clutch is pushed with this
Separation；
C, binding signal is sent when shift switch unclamps to controller, controller is in the feelings for not receiving the stopping signal
Under condition, electric pushrod output power is controlled based on the binding signal and is stretched out with the piston rod that this pushes automatic work to pump, automatically
The piston rod of working barrel stretches out drives the piston rod of clutch slave cylinder to retract by oil pressure in the process, pushes clutch knot with this
It closes.
Further, the collected current vehicle speed of controller is lower than the first preset vehicle speed and when receiving brake signal, control
Electric pushrod output power processed pushes the piston rod of the automatic work pump to retract with this, and the piston rod of automatic work pump retracted
It drives the piston rod of clutch slave cylinder to stretch out by oil pressure in journey, clutch separation is pushed with this.
Further, step c specifically:
C1, shift switch send binding signal to controller when unclamping；
C2, controller be not in the case where receiving the stopping signal, according to the speed and track slope detected
Degree, judges the current shift mode of vehicle；The shift mode includes high-speed gear-shifting mode, low speed conventional shift mode and low speed slope
Spend shift mode；Wherein, when detect speed be greater than or equal to the second preset vehicle speed, regard as high-speed gear-shifting mode；Work as detection
The track gradient arrived is less than default value of slope and speed less than the second preset vehicle speed, regards as low speed conventional shift mode；
Value of slope and speed are preset less than the second preset vehicle speed when the track gradient detected is greater than or equal to, and regard as low speed slope
Spend shift mode；
C3, when judging to obtain the current shift mode of vehicle as high-speed gear-shifting mode, it is defeated that controller controls electric pushrod
First power out, the first power drive vehicular clutch are combined with First Speed；
When judging to obtain the current shift mode of vehicle as low speed conventional shift mode, it is defeated that controller controls electric pushrod
Second power out, the second power drive vehicular clutch are bound to the first half-clutch position with second speed, with third speed
Degree is from the first half-clutch position displacement to the second half-clutch position, after the second half-clutch position stops preset time, with the 4th
Speed is from the second half-clutch position displacement to full binding site；
When judging to obtain the current shift mode of vehicle as low speed gradient shift mode, it is defeated that controller controls electric pushrod
Third power out, the third power drive vehicular clutch are bound to intermediate half-clutch position with second speed, with third speed
Degree is from intermediate half-clutch position displacement to the second half-clutch position, after the second half-clutch position stops preset time, with the 4th
Speed is from the second half-clutch position displacement to full binding site；
Wherein, First Speed, second speed and fourth speed are all larger than third speed.
Further, step c2 further include:
Controller judges the current shift mode of vehicle, the shift mode according to engine speed, speed and brake signal
Further include ejection starting shift mode, when receive brake signal, speed be 0 and engine speed be greater than preset rotation speed when, recognize
It is set to ejection starting shift mode；
While ejection starts to walk under shift mode, and brake signal disappears, controller controls electric pushrod and exports the 4th function
Rate, the 4th power drive vehicular clutch are combined with the 5th speed, and the 5th speed is greater than or equal to second speed.
Further, step c2 further include:
The connection signal and speed that controller is switched according to motor pattern, judge the current shift mode of vehicle, the shift
Mode further includes movement shift mode, when the connection signal and speed for receiving motor pattern switch are less than the second preset vehicle speed,
Regard as movement shift mode；
When judging to obtain the current shift mode of vehicle as movement shift mode, controller controls electric pushrod output the
Three power, the third power drive vehicular clutch are bound to intermediate half-clutch position with second speed, with third speed from
Intermediate half-clutch position displacement is to the second half-clutch position, after the second half-clutch position stops preset time, with fourth speed
From the second half-clutch position displacement to full binding site.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the vehicle automatic clutch system that one embodiment of the invention provides；
Fig. 2 be another embodiment of the present invention provides vehicle automatic clutch system its controller and associated components signal
Connection schematic diagram；
Fig. 3 is clutch combination stroke in the control method for the vehicle automatic clutch system that one embodiment of the invention provides
Schematic diagram.
Appended drawing reference is as follows:
1, clutch main pump；101, the piston rod of clutch main pump；102, the oil cylinder of clutch main pump；2, automatic work
Pump；201, the piston rod of automatic work pump；202, the oil cylinder of automatic work pump；3, clutch slave cylinder；301, clutch slave cylinder
Piston rod；302, the oil cylinder of clutch slave cylinder；4, clutch；41, release bearing；42, platen；5, electric pushrod；51, motor；
52, retarder；53, lead screw；531, shell；532, screw rod；533, push rod；534, the first limit switch；535, the second limit is opened
It closes；536, limit switch triggers projection；6, clutch pedal switch；7, shift switch；8, clutch pedal；9, pipeline；10, it controls
Device；11, pipeline；12, position sensor；13, gradiometer；14, brake switch；15, vehicle speed sensor；16, engine speed passes
Sensor；17, motor pattern switchs.
Specific embodiment
In order to which the technical problems, technical solutions and beneficial effects solved by the present invention is more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
As shown in Figure 1, one embodiment of the invention provide a kind of vehicle automatic clutch system is provided, the vehicle include from
Clutch main pump 1, clutch slave cylinder 3 and clutch 4, vehicle automatic clutch system includes automatic work pump 2, described for driving
Electric pushrod 5, clutch pedal switch 6, shift switch 7 and the controller 10 of automatic work pump.The work of the clutch main pump 1
Stopper rod 101 is connected to clutch pedal 8, and the oil cylinder 102 and the oil cylinder 202 of automatic work pump 2 of the clutch main pump 1 pass through
Pipeline 9 is connected to, and the oil cylinder 202 of the automatic work pump 2 is connected to by pipeline 11 with the oil cylinder 301 of the clutch slave cylinder 3, institute
The piston rod 301 for stating clutch slave cylinder 3 is connected to the clutch 4, the electric pushrod 5, clutch pedal switch 6 and shift
Switch 7 is connect with 10 signal of controller respectively, the work of the power output end connection automatic work pump 2 of the electric pushrod 5
Stopper rod 201.
In the present embodiment, the clutch pedal switch 6 sends stopping signal when the clutch pedal 8 is operated to institute
Controller 10 is stated, the controller 10 is based on the stopping signal and controls the electric pushrod 5 not output power；The shift is opened
It closes 7 and sends separation signal when pressed to the controller 10, the controller 10 is not receiving the stopping signal
In the case of, the piston that 5 output power of electric pushrod pushes the automatic work to pump 2 with this is controlled based on the signal that separates
Bar 202 retracts, and drives the piston rod of clutch slave cylinder 3 in 202 back off procedure of piston rod of the automatic work pump 2 by oil pressure
301 stretch out, and push clutch 4 to separate with this；Binding signal is sent when the shift switch 7 unclamps to the controller 10, institute
Controller 10 is stated in the case where not receiving the stopping signal, it is defeated to control the electric pushrod 5 based on the binding signal
Power pushes the piston rod 201 of the automatic work pump 2 to stretch out out with this, and the piston rod 201 of the automatic work pump 2 stretched out
It drives the piston rod 301 of clutch slave cylinder 3 to retract by oil pressure in journey, pushes clutch 4 to combine with this.
In the present embodiment, as shown in Figure 1, the electric pushrod 5 includes motor 51, retarder 52 and lead screw 53, it is described to subtract
The input terminal of fast device 52 is connected to the output end of the motor 51, and the output end of the retarder 52 connects the defeated of the lead screw 53
Enter end, the piston rod 201 of the output end connection automatic work pump 2 of the lead screw 53.
In the present embodiment, as shown in Figure 1, the lead screw 53 includes shell 531, screw rod 532 and push rod 533, the screw rod
532 are connected on the output end of the retarder 52, and the push rod 533 is threaded in the outside of the screw rod 532, described to push away
The end of bar 533 stretch out the shell 531 and with the automatic work pump 2 piston rod 201 connect, the shell 531 it is interior
The confined planes that the restricted push rod 533 rotates are arranged in side, slide so that the push rod 533 is only capable of opposite shell, described to push away
The outside of bar 533 is also connected with the position sensor 12 for detecting 533 sliding position of push rod, and position sensor 12 for example can be with
It is slide rheostat.The first limit switch 534 and the second limit switch 535, the push rod 533 are provided on the shell 531
Upper setting limit switches trigger projection 536, and it is preferably arc projection, the first limit switch that limit switch, which triggers projection 536,
The position squeezed on 534 with limit switch triggering 536 phase of projection is provided with inclined-plane, so that limit switch triggers 536 energy of projection
Enough passes through and push the first limit switch 534；Similarly, it is squeezed on the second limit switch 535 with limit switch triggering 536 phase of projection
Position be provided with inclined-plane so that limit switch triggering projection 536 can by and push the second limit switch 535.
The push rod 533 vehicular clutch in initial position is completely combined, and the switch triggering projection 536 is pushed down described
First limit switch 534 is rotated with stopping the motor 51, the vehicle clutch when push rod 533 stretches out 531 maximum position of shell
Device is kept completely separate, and the switch triggering projection 536 pushes down second limit switch 535 to stop the motor 51 and rotate, with
This realizes the both ends limit of motor 51.
In the present embodiment, as shown in Figure 1, the clutch 4 includes release bearing 41 and platen 42, release bearing 41 and institute
The piston rod 301 for stating clutch slave cylinder connects, movement of the piston rod 301 of the clutch slave cylinder under oil pressure promotion, so that
Release bearing 41 and platen 42 combine or separation, and the combination and separation of clutch are realized with this.
In the present embodiment, the top or side of gear lever is arranged in the shift switch 7.It is of course also possible to be that setting exists
Other positions for being conducive to operation.
In the present embodiment, as shown in Fig. 2, the vehicle automatic clutch system further includes connecting with 10 signal of controller
Connect for detect vehicle running surface gradient size gradiometer 13, connect with 10 signal of controller be used for detect vehicle
The brake switch 14 of brake signal, the controller 10 is connect with 15 signal of vehicle speed sensor of vehicle and real-time collecting vehicle
Speed, the controller 10 are connect with 16 signal of engine speed sensor of vehicle to acquire engine speed, the control in real time
Device 10 processed is connect with 17 signal of motor pattern switch of vehicle.When motor pattern switch 17 is pressed, indicate that vehicle enters movement
Mode.
The vehicle automatic clutch system of the above embodiment of the present invention its working principles are as follows:
(1) mode (conventional manual shift) of clutch pedal is stepped on
Driver steps on clutch pedal 8, and clutch pedal switch 6 is connected, and sends stopping signal to controller 10, controller
10 are not worked based on stopping signal control motor 51, and the piston rod 101 of clutch main pump advances, in this way, due to clutch main pump
Oil cylinder 102, automatic work pump oil cylinder 202 and clutch slave cylinder oil cylinder 302 be it is interconnected so that clutch slave cylinder
Piston rod 301 push clutch 4 separate；In the state that clutch 4 separates, driver can shift gears.After the completion of shift, pine
Clutch pedal 8 is opened, clutch pedal switch 6 is returned to off-state.
(2) mode of shift switch is pressed
Driver presses shift switch 7, in this way, shift switch 7 is connected, shift switch 7 sends separation signal to the control
Device 10 processed, the controller 10 control the electricity in the case where not receiving the stopping signal, based on the separation signal
Dynamic 5 output power of push rod pushes the piston rod 202 of the automatic work pump 2 to retract with this, the piston rod of the automatic work pump 2
It drives the piston rod 301 of clutch slave cylinder 3 to stretch out by oil pressure in 202 back off procedure, pushes clutch 4 to separate with this.Shift
After the completion, driver unclamps the shift switch 7, and shift switch 7 sends binding signal to the controller 10, the controller
10 in the case where not receiving the stopping signal, based on the binding signal control 5 output power of electric pushrod with
This pushes the piston rod 201 of the automatic work pump 2 to stretch out, and the piston rod 201 of the automatic work pump 2 passes through during stretching out
Oil pressure drives the piston rod 301 of clutch slave cylinder 3 to retract, and pushes clutch 4 to combine with this.
Vehicle automatic clutch system according to the above embodiment of the present invention, without changing former vehicle ECU, and by the vehicle
After automatic clutch system is installed on vehicle, the function of clutch pedal does not fail, and driver both can be by stepping on clutch
The mode of pedal makes clutch separation, can also make clutch separation by way of pressing shift switch, relative to existing
Repacking mode, it is easier to realize and reequip at low cost.Also, whether newly-increased clutch pedal switch is able to detect clutch pedal
Be operated, clutch pedal switch do not step on and shift switch when pressed, clutch slave cylinder is driven by electric pushrod
Work so that clutch separation；It is not stepped in clutch pedal switch and shift switch is when being released, pushed away by electronic
Bar drives the work of clutch slave cylinder, so that clutch combines, realizes the automatic gear change function of manual gear vehicle.Also,
Clutch pedal switch sends stopping signal when clutch pedal is operated to controller, and controller is based on stopping signal control electricity
Dynamic push rod not output power switches to conventional manual shift mode as long as that is, clutch pedal is operated, switching rapidly, side
Just.
In addition, as shown in Figures 1 and 2, the present invention also provides a kind of based on above-mentioned vehicle automatic clutch system
Control method, comprising:
A, clutch pedal switch 6 sends stopping signal when clutch pedal 8 is operated to controller 10,10 base of controller
The not output power of electric pushrod 5 is controlled in the stopping signal；
B, shift switch 7 sends separation signal to controller 10 when pressed, and controller 10 is not receiving described stop
In the case where machine signal, the piston of automatic work pump 2 is pushed with this based on separation signal control 5 output power of electric pushrod
Bar 201 retracts, and drives the piston rod 301 of clutch slave cylinder 3 in 201 back off procedure of piston rod of automatic work pump 2 by oil pressure
It stretches out, pushes clutch 4 to separate with this；
C, binding signal is sent when shift switch 7 unclamps to controller 10, controller 10 is not receiving the shutdown letter
In the case where number, the piston rod of automatic work pump 2 is pushed with this based on binding signal control 5 output power of electric pushrod
201 stretch out, and the piston rod 201 of automatic work pump 2 stretches out drives the piston rod 301 of clutch slave cylinder 3 to return by oil pressure in the process
It moves back, pushes clutch 4 to combine with this.
In the present embodiment, the collected current vehicle speed of controller 10 is lower than the first preset vehicle speed and receives brake signal
When (connection of brake switch 14), controls 5 output power of electric pushrod and push the piston rod 201 of the automatic work pump 2 to return with this
It moves back, drives the piston rod 301 of clutch slave cylinder 3 to stretch out by oil pressure in 201 back off procedure of piston rod of automatic work pump 2, with
This pushes clutch 4 to separate.The setting of first preset vehicle speed is that automobile stops working in low speed in order to prevent, and the first preset vehicle speed can
Taking range is 10-20km/h, such as 15km/h.
In the present embodiment, step c specifically:
C1, shift switch send binding signal to controller when unclamping；
C2, controller be not in the case where receiving the stopping signal, according to the speed and track slope detected
Degree, judges the current shift mode of vehicle；The shift mode includes high-speed gear-shifting mode, low speed conventional shift mode and low speed slope
Spend shift mode；Wherein, when detect speed be greater than or equal to the second preset vehicle speed, regard as high-speed gear-shifting mode；Work as detection
The track gradient arrived is less than default value of slope and speed less than the second preset vehicle speed, regards as low speed conventional shift mode；
Value of slope and speed are preset less than the second preset vehicle speed when the track gradient detected is greater than or equal to, and regard as low speed slope
Spend shift mode.It is more than or equal to 30km/h, such as 35km/h that second preset vehicle speed, which can use range,.Default value of slope can use model
It encloses for more than or equal to 10 degree, such as 15 degree.
C3, when judging to obtain the current shift mode of vehicle as high-speed gear-shifting mode, it is defeated that controller controls electric pushrod
First power out, the first power drive vehicular clutch is with First Speed V1In conjunction with；First Speed V1Preferably equivalent to clutch
The speed of clutch when pedal is replied naturally.
As shown in figure 3, when judging to obtain the current shift mode of vehicle as low speed conventional shift mode, controller control
Electric pushrod exports the second power, and the second power drive vehicular clutch is with second speed V2It is bound to the first half-clutch position
L1 is set, with third speed V3It is moved to the second half-clutch position L2 from the first half-clutch position L1, in the second half-clutch position L2
After stopping preset time, with fourth speed V4Full binding site La is moved to from the second half-clutch position L2.In full binding site
La, clutch are completely combined, i.e., combination degree is 100%, in the moment (i.e. origin position in Fig. 3) that clutch has just combined,
Combination degree is expressed as 0%.It is 1-10s, such as 3s that preset time, which can use range,.First Speed V1, second speed V2And four-speed
Spend V4It is all larger than third speed V3.Preferably, second speed V2Equal to fourth speed V4.In this way, in low speed conventional shift mode
When, by the above-mentioned control of clutch, so that smooth gear shifting.
As shown in figure 3, when judging to obtain the current shift mode of vehicle as low speed gradient shift mode, controller control
Electric pushrod exports third power, and the third power drive vehicular clutch is with second speed V2It is bound to intermediate half-clutch position
Lm is set, with third speed V3It is moved to the second half-clutch position L2 from intermediate half-clutch position Lm, in the second half-clutch position L2
After stopping preset time, with fourth speed V4Full binding site La is moved to from the second half-clutch position L2.Intermediate half-clutch position
Lm is set between the first half-clutch half-clutch position L2 of position L1 and second.In this way, relative to low speed conventional shift mode, it is low
Under fast gradient shift mode, intermediate half-clutch position Lm is moved back relative to the first half-clutch position L1, in such manner, it is possible to guarantee low
Under fast gradient shift mode (hill start or ramp driving), clutch is bound to intermediate half-clutch position Lm, compared to knot
It is bonded to the first half-clutch position L1, is capable of providing bigger torque, in order to vehicle climbing.
In the present embodiment, step c2 further include:
Controller judges the current shift mode of vehicle, the shift mode according to engine speed, speed and brake signal
Further include ejection starting shift mode, when receive brake signal, speed be 0 and engine speed be greater than preset rotation speed when, recognize
It is set to ejection starting shift mode；
While ejection starts to walk under shift mode, and brake signal disappears, controller controls electric pushrod and exports the 4th function
Rate, the 4th power drive vehicular clutch is with the 5th speed V5In conjunction with.5th speed V5More than or equal to second speed V2。
In this way, clutch quickly combines, vehicle is scurried out rapidly, forms ejection starting effect.
In the present embodiment, step c2 further include:
The connection signal and speed that controller is switched according to motor pattern, judge the current shift mode of vehicle, the shift
Mode further includes movement shift mode, when the connection signal and speed for receiving motor pattern switch are less than the second preset vehicle speed,
Regard as movement shift mode；
In the case where moving shift mode, controller controls electric pushrod and exports third power, the third power drive vehicle
Clutch is with second speed V2It is bound to intermediate half-clutch position Lm, with third speed V3It is moved to from intermediate half-clutch position Lm
Second half-clutch position L2, after the second half-clutch position L2 stops preset time, with fourth speed V4From the second half-clutch position
It sets L2 and is moved to full binding site La.Intermediate half-clutch position Lm is located at the first half-clutch half-clutch position L2 of position L1 and second
Between.In this way, intermediate half-clutch position Lm is moved back relative to the first half-clutch position L1, in this way, energy in the case where moving shift mode
Enough guarantee in the case where moving shift mode, clutch is bound to intermediate half-clutch position Lm, compared to being bound to the first half-clutch position
L1 is set, bigger torque is capable of providing, in order to vehicle fast starting or acceleration.
In the present embodiment, movement shift mode is identical as the control of gradient shift mode, certainly according to different vehicles
It can require, different control can also be used.
To sum up, it is seen then that the above-mentioned control method of the present embodiment has comprehensively considered clutch of the vehicle under each shift mode
Device control enables above-mentioned vehicle automatic clutch system perfection to simulate each shift mode clutch of automatic block vehicle
Control, the installation or repacking of manual gear vehicle can be well adapted for, in the case where speed changer does not do any change, using compared with
Low cost realizes manual gear vehicle and changes automatic block vehicle.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. a kind of vehicle automatic clutch system, the vehicle include clutch main pump, clutch slave cylinder and clutch, feature exists
In including controller, automatic work pump, the electric pushrod for driving automatic work pump, clutch pedal switch and changing
Position switch, the piston rod of the clutch main pump are connected to clutch pedal, and the oil cylinder of the clutch main pump is started building certainly with described
Make the oil cylinder pumped by pipeline connection, the oil cylinder of the automatic work pump is connected by the oil cylinder of pipeline and the clutch slave cylinder
Logical, the piston rod of the clutch slave cylinder is connected to the clutch, and the electric pushrod, clutch pedal switch and shift are opened
Pass is connected with the controller in a signal way. respectively, the piston rod of the power output end connection automatic work pump of the electric pushrod,
In,
The clutch pedal switch sends stopping signal when the clutch pedal is operated to the controller, the control
Device is based on the stopping signal and controls the electric pushrod not output power；
The shift switch sends separation signal to the controller when pressed, and the controller is not receiving described stop
In the case where machine signal, the electric pushrod output power is controlled based on the separation signal and pushes the automatic work to pump with this
Piston rod retract, drive the piston rod of clutch slave cylinder to be stretched by oil pressure in the piston rod back off procedure of automatic work pump
Out, clutch separation is pushed with this；
Binding signal is sent when the shift switch unclamps to the controller, the controller is not receiving the shutdown letter
In the case where number, the work that the electric pushrod output power pushes the automatic work to pump with this is controlled based on the binding signal
Stopper rod stretches out, and the piston rod of the automatic work pump stretches out drives the piston rod of clutch slave cylinder to retract by oil pressure in the process,
Clutch is pushed to combine with this, specifically,
Binding signal is sent when the shift switch unclamps to the controller；
The controller is not in the case where receiving the stopping signal, according to the speed and the track gradient detected,
Judge the current shift mode of vehicle；The shift mode includes high-speed gear-shifting mode, low speed conventional shift mode and the low speed gradient
Shift mode；Wherein, when detect speed be greater than or equal to the second preset vehicle speed, regard as high-speed gear-shifting mode；When detecting
The track gradient be less than default value of slope and speed less than the second preset vehicle speed, regard as low speed conventional shift mode；When
The track gradient detected is greater than or equal to default value of slope and speed less than the second preset vehicle speed, regards as the low speed gradient
Shift mode；
When judging to obtain the current shift mode of vehicle as high-speed gear-shifting mode, controller controls electric pushrod and exports the first function
Rate, the first power drive vehicular clutch are combined with First Speed；
When judging to obtain the current shift mode of vehicle as low speed conventional shift mode, controller controls electric pushrod output the
Two power, the second power drive vehicular clutch are bound to the first half-clutch position with second speed, with third speed from
First half-clutch position displacement to the second half-clutch position, after the second half-clutch position stops preset time, with fourth speed
From the second half-clutch position displacement to full binding site；
When judging to obtain the current shift mode of vehicle as low speed gradient shift mode, controller controls electric pushrod output the
Three power, the third power drive vehicular clutch are bound to intermediate half-clutch position with second speed, with third speed from
Intermediate half-clutch position displacement is to the second half-clutch position, after the second half-clutch position stops preset time, with fourth speed
From the second half-clutch position displacement to full binding site；
Wherein, First Speed, second speed and fourth speed are all larger than third speed.
2. vehicle automatic clutch system according to claim 1, which is characterized in that the electric pushrod include motor,
Retarder and lead screw, the input terminal of the retarder are connected to the output end of the motor, the output end connection of the retarder
The input terminal of the lead screw, the piston rod of the output end connection automatic work pump of the lead screw.
3. vehicle automatic clutch system according to claim 2, which is characterized in that the lead screw includes shell, screw rod
And push rod, the screw rod are connected on the output end of the retarder, the push rod is threaded in the outside of the screw rod, institute
The end for stating push rod is stretched out the shell and is connect with the piston rod of automatic work pump, and the inside setting of the shell is limited
The confined planes of the push rod rotation are made, slides so that the push rod is only capable of opposite shell, is also connected on the outside of the push rod
For detecting the position sensor of push rod sliding position, the first limit switch and the second limit switch are provided on the shell,
Limit switches are set on the push rod and trigger projection, push rod vehicular clutch in initial position is completely combined, described
Switch triggering projection pushes down first limit switch to stop the motor rotation, when the push rod stretches out shell maximum position
Vehicular clutch is kept completely separate, and the switch triggering projection pushes down second limit switch to stop the motor rotation.
4. vehicle automatic clutch system according to claim 1, which is characterized in that the vehicle automatic clutch system
It further include the gradiometer for detecting vehicle running surface gradient size and the controller being connected with the controller in a signal way.
The vehicle speed sensor signal of the brake switch for being used to detect vehicle brake signal of signal connection, the controller and vehicle connects
And speed is acquired in real time, the engine speed sensor signal connection of the controller and vehicle is turned with acquiring engine in real time
Speed.
5. vehicle automatic clutch system according to claim 4, which is characterized in that the movement of the controller and vehicle
Mode switching signal connection.
6. a kind of control method of vehicle automatic clutch system described in claim 1 characterized by comprising
A, clutch pedal switch sends stopping signal when clutch pedal is operated to controller, and controller is based on the shutdown
Signal controls electric pushrod not output power；
B, shift switch sends separation signal to controller when pressed, and controller is in the feelings for not receiving the stopping signal
Under condition, retracted based on the separation signal control electric pushrod output power with the piston rod that this pushes automatic work to pump, automatically
It drives the piston rod of clutch slave cylinder to stretch out by oil pressure in the piston rod back off procedure of working barrel, clutch point is pushed with this
From；
C, binding signal is sent when shift switch unclamps to controller, controller is not the case where receiving the stopping signal
Under, electric pushrod output power is controlled based on the binding signal and is stretched out with the piston rod that this pushes automatic work to pump, is started building certainly
Make to drive the piston rod of clutch slave cylinder to retract by oil pressure during the piston rod pumped stretches out, pushes clutch to combine with this.
7. control method according to claim 6, which is characterized in that the collected current vehicle speed of controller is pre- lower than first
If speed and when receiving brake signal, controls electric pushrod output power and push the piston rod of the automatic work pump to return with this
Move back, drive the piston rod of clutch slave cylinder to stretch out by oil pressure in the piston rod back off procedure of automatic work pump, with this push from
Clutch separation.
8. control method according to claim 6, which is characterized in that step c further include:
Controller judges that the current shift mode of vehicle, the shift mode also wrap according to engine speed, speed and brake signal
Include ejection starting shift mode, when receive brake signal, speed be 0 and engine speed be greater than preset rotation speed when, regard as
Ejection starting shift mode；
While ejection starts to walk under shift mode, and brake signal disappears, controller controls electric pushrod and exports the 4th power, institute
It states the 4th power drive vehicular clutch to combine with the 5th speed, the 5th speed is greater than or equal to second speed.
9. control method according to claim 6, which is characterized in that step c further include:
The connection signal and speed that controller is switched according to motor pattern, judge the current shift mode of vehicle, the shift mode
It further include movement shift mode, when the connection signal and speed for receiving motor pattern switch are less than the second preset vehicle speed, identification
To move shift mode；
When judging to obtain the current shift mode of vehicle to move shift mode, controller controls electric pushrod and exports third function
Rate, the third power drive vehicular clutch are bound to intermediate half-clutch position with second speed, with third speed from centre
Half-clutch position displacement is to the second half-clutch position, after the second half-clutch position stops preset time, with fourth speed from the
Two half-clutch position displacements are to full binding site.
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| CN201610266321.5A CN105946567B (en) | 2016-04-26 | 2016-04-26 | Vehicle automatic clutch system and its control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610266321.5A CN105946567B (en) | 2016-04-26 | 2016-04-26 | Vehicle automatic clutch system and its control method |
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| CN108691917B (en) * | 2018-05-21 | 2020-04-24 | 山推工程机械股份有限公司 | Clutch operating device, engineering vehicle and gear shifting or reversing control method of engineering vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401041A (en) * | 2010-09-07 | 2012-04-04 | 沈诗文 | Automatic control clutch for automobile |
| CN203162118U (en) * | 2013-01-28 | 2013-08-28 | 贾洪彬 | Automobile Clutch Intelligent Control Device |
| CN204077376U (en) * | 2014-07-25 | 2015-01-07 | 谭世军 | Manual gear vehicle automatic clutch device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19647940C2 (en) * | 1996-11-20 | 1999-05-12 | Mannesmann Sachs Ag | Hydraulic actuator |
| JP4452040B2 (en) * | 2003-07-08 | 2010-04-21 | 株式会社トランストロン | Operating force assist control device |
| CN103192707B (en) * | 2013-03-29 | 2015-11-18 | 杨勇 | The automatic Detaching and Lapping device of pneumatically controlled clutch pedal of clutch |
| FR3027078B1 (en) * | 2014-10-13 | 2016-11-04 | Valeo Embrayages | ACTUATOR FOR TRANSMISSION SYSTEM |
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2016
- 2016-04-26 CN CN201610266321.5A patent/CN105946567B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401041A (en) * | 2010-09-07 | 2012-04-04 | 沈诗文 | Automatic control clutch for automobile |
| CN203162118U (en) * | 2013-01-28 | 2013-08-28 | 贾洪彬 | Automobile Clutch Intelligent Control Device |
| CN204077376U (en) * | 2014-07-25 | 2015-01-07 | 谭世军 | Manual gear vehicle automatic clutch device |
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