CN108087544A - Double-clutch speed changer hydraulic control system and control method - Google Patents

Double-clutch speed changer hydraulic control system and control method Download PDF

Info

Publication number
CN108087544A
CN108087544A CN201611027716.6A CN201611027716A CN108087544A CN 108087544 A CN108087544 A CN 108087544A CN 201611027716 A CN201611027716 A CN 201611027716A CN 108087544 A CN108087544 A CN 108087544A
Authority
CN
China
Prior art keywords
hydraulic oil
clutch
hydraulic
control
double
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611027716.6A
Other languages
Chinese (zh)
Inventor
甘道辉
孙光辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SAIC Motor Corp Ltd
Original Assignee
SAIC Motor Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SAIC Motor Corp Ltd filed Critical SAIC Motor Corp Ltd
Priority to CN201611027716.6A priority Critical patent/CN108087544A/en
Publication of CN108087544A publication Critical patent/CN108087544A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0262Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38Control of exclusively fluid gearing
    • F16H61/40Control of exclusively fluid gearing hydrostatic
    • F16H61/4008Control of circuit pressure

Abstract

A kind of double-clutch speed changer hydraulic control system and control method, the double-clutch speed changer hydraulic control system include controller, the first hydraulic oil supply subsystem, the second hydraulic oil supply subsystem, clutch cooling circuit and gearshift and perform system control loop;The control method includes:The controller obtains the temperature of double clutch and first hydraulic oil supply subsystem supply gearshift performs the hydraulic oil pressure of system control loop respectively according to vehicle power parameter;When the hydraulic oil pressure that the gearshift performs system control loop can not meet the needs of vehicle current working oil pressure, second hydraulic oil is controlled to supply subsystem and performs system control loop supply hydraulic oil to the gearshift;When the temperature of the double clutch is higher than preset temperature value, second hydraulic oil is controlled to supply subsystem and supplies hydraulic oil to the clutch cooling circuit.Using the above program, the cooling capacity to clutch can be improved.

Description

Double-clutch speed changer hydraulic control system and control method
Technical field
The present invention relates to transmission for vehicles technical field more particularly to a kind of double-clutch speed changer hydraulic control system and controls Method processed.
Background technology
Double clutch is a kind of new speed changer, including odd gear clutch and even gear clutch, passes through two Shift process is completed in the alternating switching of a clutch, is capable of providing unremitting power output.
Wet-type dual-clutch is mounted in a closed oil pocket full of hydraulic oil, and wet-type dual-clutch can utilize hydraulic pressure Oil is cooled down and lubricated, and wears smaller and good heat dissipation.In addition, wet-type dual-clutch structure has preferable regulating power, tool There is larger torque-transfer capability, therefore applied in automotive field than wide.
In the prior art, wet-type dual-clutch gear box hydraulic control system is pumped by engine-driven, from fuel tank Hydraulic oil is inside pumped out, hydraulic oil pressure is provided for clutch cooling circuit and actuator control loop.
However, when vehicle is in idling, runs at a low speed, the rotating speed of engine is relatively low, the hydraulic oil that mechanical pump is provided Underfed is performed with driving the action of shift fork actuator and double clutch in gearshift execution system namely can not meet gearshift The oil pressure demand of system control loop.When vehicle low speed high load works, such as climbing or large throttle starting, clutch be not complete It is complete to combine, in slipping state, amount of heat is generated, at this point, the rotating speed of engine is relatively low, the hydraulic pressure oil stream that mechanical pump is provided Amount is smaller, poor to the cooling capacity of clutch.
The content of the invention
Present invention solves the technical problem that it is how to meet hydraulic oil pressure needed for execution system control loop of shifting gears In the case of, improve the cooling capacity to clutch.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of control of double-clutch speed changer hydraulic control system Method, the double-clutch speed changer hydraulic control system include controller, the first hydraulic oil supply subsystem, the second hydraulic oil and supply System control loop is performed to subsystem, clutch cooling circuit and gearshift;The control method includes:The controller root According to vehicle power parameter, obtain changed described in the temperature of double clutch and first hydraulic oil supply subsystem supply respectively Gear performs the hydraulic oil pressure of system control loop;When the hydraulic oil pressure that the gearshift performs system control loop can not meet During the demand oil pressure of vehicle current working, second hydraulic oil is controlled to supply subsystem and is controlled back to the gearshift execution system Road supplies hydraulic oil;When the temperature of the double clutch is higher than preset temperature value, the second hydraulic oil supply subsystem is controlled It unites and supplies hydraulic oil to the clutch cooling circuit.
Optionally, the vehicle power parameter includes:Engine speed, current gear and throttle.
Optionally, the hydraulic oil pressure for performing system control loop when the gearshift can not meet vehicle current working Demand oil pressure when, second hydraulic oil is controlled to supply subsystem and performs system control loop supply hydraulic pressure to the gearshift Oil, including:When the engine speed is less than preset rotation speed, the current gear is in the first gear and the throttle is expired During sufficient first state condition, second hydraulic oil is controlled to supply subsystem and performs system control loop supply liquid to the gearshift Pressure oil.
Optionally, it is described when the temperature of the double clutch is higher than preset temperature value, second hydraulic oil is controlled to supply Hydraulic oil is supplied to the clutch cooling circuit to subsystem, including:When the engine speed be in preset rotation speed scope, When the current gear is in the second gear and the throttle the second status condition of satisfaction, second hydraulic oil is controlled to supply To subsystem hydraulic oil is supplied to the clutch cooling circuit.
Optionally, second hydraulic oil is being controlled to supply subsystem to clutch cooling circuit supply hydraulic oil When, the control method further includes:When detecting that engine is in running order, the first hydraulic oil supply subsystem is controlled It unites and supplies hydraulic oil to the clutch cooling circuit.
Optionally, the control method further includes:The controller is further adapted for, according to the vehicle power parameter, obtaining The gearshift performs the hydraulic oil pressure of system control loop, adjusts the input current value of pilot valve;So that the pilot valve root According to input current value, the hydraulic oil in two-way switch device is controlled to supply to the gearshift and performs system control loop or control Hydraulic oil in the two-way switch device is supplied to clutch cooling circuit.
Optionally, the control method further includes:For the controller according to the vehicle power parameter, what is got is described The temperature of double clutch, adjusts hydraulic-oil quantity in the clutch cooling circuit, and the temperature of the double clutch with it is described Hydraulic-oil quantity positive correlation in clutch cooling circuit.
Optionally, the control method further includes:The controller is according to described according to vehicle power parameter acquiring Gearshift performs the hydraulic oil pressure in system control loop, when the hydraulic oil pressure that the gearshift is performed in system control loop is big When default oil pressure, the safety valve in working connection is opened, reduces the hydraulic oil pressure in the gearshift execution system control loop.
Optionally, the gearshift, which performs system control loop, includes odd/even clutch control circuit;The controlling party Method further includes:The controller is operated according to vehicle shift, obtains target gear;According to the target gear, adjust described strange Hydraulic oil pressure in number/even number clutch control circuit.
Optionally, the gearshift performs system control loop and includes:Odd/even gear shift fork actuator control loop; The control method further includes:The controller is operated according to vehicle shift, obtains target gear;According to the target gear, The hydraulic oil pressure and hydraulic oil flow direction in the odd/even gear shift fork actuator control loop are controlled, to control State the movement of the corresponding gear shift fork actuator of target gear.
Optionally, the control method further includes:The controller detects the odd/even gear shift fork actuator When control loop breaks down, the even/odd gear shift fork actuator control loop is controlled to the odd/even gear Shift fork actuator control loop provides hydraulic oil.
The embodiment of the present invention additionally provides a kind of double-clutch speed changer hydraulic control system, including:Controller, two-way switch Device, the first hydraulic oil supply subsystem, the second hydraulic oil supply subsystem, clutch cooling circuit and gearshift execution system Control loop, wherein:The controller, suitable for according to vehicle power parameter, obtaining the temperature of double clutch and described respectively The first hydraulic oil supply subsystem supply gearshift performs the hydraulic oil pressure of system control loop;When the gearshift performs system When the hydraulic oil pressure of system control loop can not meet the needs of vehicle current working oil pressure, generate first control signal and send Subsystem is supplied to second hydraulic oil, generate second control signal and is sent to the two-way switch device;And work as institute When stating the temperature of double clutch higher than preset temperature value, generate the 3rd control signal and be simultaneously sent to the second hydraulic oil supply System generates the 4th control signal and is sent to the two-way switch device;Second hydraulic oil supplies subsystem, suitable for When receiving the first control signal or three control signals, start to work;The two-way switch device, suitable for according to reception The second control signal arrived supplies the hydraulic oil of second hydraulic oil supply subsystem to the gearshift execution system Control loop;And according to the 4th control signal received, by the hydraulic oil of second hydraulic oil supply subsystem It supplies to the clutch cooling circuit.
Optionally, the vehicle power parameter includes:Engine speed, current gear and throttle.
Optionally, the controller is in the suitable for working as the engine speed less than preset rotation speed, the current gear One gear and when the throttle meets first state condition, generation first control signal is simultaneously sent to second hydraulic oil Subsystem is supplied, generate second control signal and is sent to the two-way switch device.
Optionally, the controller is in preset rotation speed scope, at the current gear suitable for working as the engine speed When the second gear and the throttle the second status condition of satisfaction, generate the 3rd control signal and be simultaneously sent to second liquid Pressure oil feeder subsystem generates the 4th control signal and is sent to the two-way switch device.
Optionally, the first hydraulic oil supply subsystem includes:First oil pump is coupled with engine, suitable for starting The hydraulic oil in fuel tank is pumped into the gearshift under the driving of machine and performs system control loop and the clutch cooling circuit.
Optionally, the controller is further adapted for the temperature of the double clutch accessed by the vehicle power parameter During higher than preset temperature value and the in running order engine, control first hydraulic oil supply subsystem to it is described from Clutch cooling circuit supplies hydraulic oil.
Optionally, the second hydraulic oil supply subsystem includes:Motor, the second oil pump, wherein:The motor, with institute The coupling of the second oil pump is stated, suitable for driving second operation of oil pump;Second oil pump, suitable for the hydraulic oil in fuel tank is pumped into System control loop or the clutch cooling circuit are performed to the gearshift.
Optionally, the control system further includes:Pilot valve is coupled with the two-way switch device;The controller, also Suitable for performing the hydraulic oil pressure of system control loop according to the gearshift, the input current value of the pilot valve is adjusted;It is described Pilot valve, suitable for when input current value is less than default first current value, the hydraulic oil in the two-way switch device being controlled to supply System control loop is performed to the gearshift;When input current value is more than default second current value, the two-way opened is controlled The hydraulic oil closed in device is supplied to clutch cooling circuit, and first current value is less than second current value.
Optionally, the control system further includes:First flow valve, be arranged on first hydraulic oil supply subsystem with Between the clutch cooling circuit, and coupled with the pilot valve;The pilot valve is further adapted for, according to input current value, adjusting Save the aperture of the first flow valve, to adjust the hydraulic-oil quantity in the clutch cooling circuit, and input current value with The aperture positive correlation of the first flow valve.
Optionally, the control system further includes:Safety valve is arranged on the first flow valve and first hydraulic oil Between supplying subsystem, the hydraulic oil pressure suitable for performing system control loop in the gearshift is opened when being higher than default oil pressure, To reduce the hydraulic oil pressure that the gearshift performs system control loop.
Optionally, the control system further includes:Oil cooler, be arranged on the clutch cooling circuit with it is described first-class Between measuring valve, suitable for cooling down the hydraulic oil flowed through.
Optionally, the control system further includes:Filter device, be arranged on the oil cooler and the first flow valve it Between, suitable for filtering the hydraulic oil flowed through.
Optionally, the control system further includes:Second flow valve is arranged on the oil cooler and is cooled down with the clutch Between circuit;The controller is further adapted for being adjusted the hydraulic fluid flow rate supplied to the clutch cooling circuit.
Optionally, the control system further includes:Constant pressure valve is arranged on the input terminal and output terminal of the second flow valve Between, it is adjusted suitable for the pressure difference to the hydraulic oil pressure between the second flow valve input terminal and output terminal.
Optionally, the control system further includes:By-passing valve is arranged on the output terminal of the first flow valve and described the Between the input terminal of two flow valves, suitable in the pressure difference of the filter device upstream and the hydraulic oil pressure in the oil cooler downstream It is opened during more than predetermined threshold value.
Optionally, the control system further includes:Tooth shaft lubricant passage way, is arranged on the downstream of the oil cooler, and with institute It states oil cooler to connect and turn on, suitable for being lubricated gear and bearing.
Optionally, the gearshift performs system control loop and includes:Clutch control circuit;The clutch control circuit Including:Odd/even clutch control circuit;The odd/even clutch control circuit includes:First pressure valve, with institute State the first hydraulic oil supply subsystem and second hydraulic oil supply subsystem coupling;The controller, is further adapted for according to vehicle Gear shift operation, obtains target gear, and according to the target gear, controls the input current value of the first pressure valve, with Adjust the hydraulic oil pressure in the odd/even clutch control circuit, and the input current value of the first pressure valve with Hydraulic oil pressure positive correlation in the odd/even clutch control circuit.
Optionally, the clutch control circuit further includes:Pressure-regulating device is arranged under the first pressure valve Trip, suitable for adjusting the hydraulic oil pressure in the odd/even clutch control circuit.
Optionally, the clutch control circuit further includes:Device for pressure measurement is arranged under the first pressure valve Trip, suitable for measuring the hydraulic oil pressure in the odd/even clutch control circuit.
Optionally, the gearshift performs system control loop and includes:Gear shift fork actuator control loop;The gear is dialled Fork actuator control loop includes:Odd/even gear shift fork actuator control loop;The controller, suitable for according to vehicle Gear shift operation obtains target gear and according to the target gear odd/even gear shift fork actuator is controlled to control Hydraulic oil pressure and hydraulic oil flow direction in circuit, to control the fortune of the corresponding gear shift fork actuator of the target gear It is dynamic.
Optionally, the odd/even gear shift fork actuator control loop includes:Second pressure valve, the 3rd flow valve, Multi-way valve, wherein:The controller suitable for being operated according to vehicle shift, obtains the target gear and according to the target Gear controls the input current value of the second pressure valve, the input current value of the 3rd flow valve and the multi-way valve The flow direction of interior hydraulic oil;The second pressure valve supplies subsystem and second hydraulic oil with first hydraulic oil respectively Subsystem coupling is supplied, suitable for adjusting aperture according to input current value, to adjust the odd/even gear shift fork actuator control The hydraulic oil pressure in circuit processed, and the input current value of the second pressure valve and aperture positive correlation;3rd flow valve, if It puts between the second pressure valve and the multi-way valve, suitable for adjusting aperture according to input current value, adjusts the odd number/idol The hydraulic-oil quantity of number gear shift fork actuator control loop, to control the movement velocity of the shift fork actuator.
Optionally, the gear shift fork actuator control loop, further includes:Switch valve is arranged on the multi-way valve and institute It states between second pressure valve;The controller is further adapted for detect the odd/even gear shift fork actuator control loop During failure, the 5th control signal is generated, and is sent to the switch valve;The switch valve, suitable for receiving described It is closed after five control signals.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that:
Controller obtains the temperature of double clutch and first hydraulic oil supply respectively according to vehicle power parameter The system supply gearshift performs the hydraulic oil pressure of system control loop.When gearshift performs the hydraulic oil oil of system control loop When pressure can not meet the needs of vehicle current working oil pressure, the second hydraulic oil of control supplies subsystem to gearshift execution system control Circuit supplies hydraulic oil;When double clutch temperature be higher than preset temperature value when, control the second hydraulic oil supply subsystem to from Clutch cooling circuit supplies hydraulic oil, so as in the case where meeting execution system control loop hydraulic oil supply of shifting gears, improve To the cooling capacity of clutch.
Further, respectively odd gear fork controls circuit, even gear fork controls circuit are provided with second pressure Valve, the 3rd flow valve and multi-way valve, by being carried out respectively to odd gear shift fork actuator and even gear shift fork actuator Control, so as to improve the precision in double-clutch speed changer shift process, and simplifies the structure in gear fork controls circuit.
In addition, when controller detects that odd/even gear shift fork actuator control loop breaks down, control is even Number/odd gear shift fork actuator control loop provides hydraulic oil to odd/even gear shift fork actuator control loop, avoids The situation that odd/even gear shift fork actuator control loop can not work due to failure occurs, and is dialled so as to improve gear Pitch the robustness of actuator control loop.
Description of the drawings
Fig. 1 is a kind of structure diagram of double-clutch speed changer hydraulic control system in invention embodiment;
Fig. 2 is a kind of control method flow chart of double-clutch speed changer hydraulic control system in the embodiment of the present invention.
Specific embodiment
In the prior art, wet-type dual-clutch gear box hydraulic control system is pumped by engine-driven, from fuel tank Hydraulic oil is inside pumped out, hydraulic oil pressure is provided for clutch cooling circuit and actuator control loop.However, when vehicle is in Idling, when running at a low speed, the rotating speed of engine is relatively low, and the hydraulic fluid flow rate that mechanical pump is provided is not enough to driving gearshift and performs system The action of shift fork actuator and double clutch in system.When vehicle low speed high load works, such as climbing or large throttle starting, Clutch is in and is not completely combined, in slipping state, generates amount of heat, at this point, the rotating speed of engine is relatively low, mechanical pump institute The hydraulic fluid flow rate of offer is smaller, poor to the cooling capacity of clutch.
In embodiments of the present invention, controller obtains temperature and the institute of double clutch according to vehicle power parameter respectively State the hydraulic oil pressure that the first hydraulic oil supply subsystem supply gearshift performs system control loop.When gearshift execution system When the hydraulic oil pressure of control loop can not meet the needs of vehicle current working oil pressure, control the second hydraulic oil supply subsystem System control loop supply hydraulic oil is performed to gearshift;When the device temperature of double clutches is higher than preset temperature value, the second liquid is controlled Pressure oil feeder subsystem supplies hydraulic oil to clutch cooling circuit.So as to meet execution system control loop hydraulic oil of shifting gears In the case of supply, the cooling capacity to clutch can be improved.
It is understandable for above-mentioned purpose, feature and advantageous effect of the invention is enable to become apparent, below in conjunction with the accompanying drawings to this The specific embodiment of invention is described in detail.
With reference to Fig. 1, a kind of double-clutch speed changer hydraulic control system in the embodiment of the present invention is given.Double clutch speed-changings Device hydraulic control system includes:Controller (not shown), two-way switch device 14, the first hydraulic oil supply subsystem, the Two hydraulic oil supply subsystem 13, clutch cooling circuit and gearshift perform system control loop.
In specific implementation, the first hydraulic oil supply subsystem includes:First oil pump 121.First oil pump 121 and engine 122 connections, when engine 122 works, can drive the first oil pump 121 to pump out hydraulic oil out of fuel tank 11, the hydraulic pressure pumped out Oil does not export to gearshift and performs system control loop and clutch cooling circuit, and output to gearshift performs system control loop Hydraulic oil can provide gear shifting force for the control and the switching of gear of gearshift, and the hydraulic oil exported to clutch cooling circuit can be with Hydraulic oil is provided for the cooling of double clutch.
In practical applications, the first oil pump 121 can be mechanical pump, or other types can be by 122 institute of engine The pump of driving.
In specific implementation, the second hydraulic oil supply subsystem 13 includes:Motor 131, the second oil pump 132.Motor 131 with Second oil pump 132 connects, and when motor 131 works, the second oil pump 132 can be driven to pump out hydraulic oil out of fuel tank 11, pumped out Hydraulic oil can export to gearshift perform system control loop, can also export to clutch cooling circuit.
In practical applications, the second oil pump 132 can be that electronic constant pumps, or variable electronic pump can also be Other kinds of electronic pump.
In practical applications, corresponding 11 and second hydraulic oil of the fuel tank supply subsystem 13 of the first hydraulic oil supply subsystem Corresponding fuel tank 11 can be same fuel tank, or different fuel tanks.
In specific implementation, controller according to vehicle power parameter, can obtain the temperature of double clutch, can also basis The first hydraulic oil of vehicle power parameter acquiring supply subsystem supply gearshift performs the hydraulic oil pressure of system control loop, Can also be according to vehicle power parameter, while obtain described in the temperature of double clutch and the supply subsystem supply of the first hydraulic oil Gearshift performs the hydraulic oil pressure of system control loop.
In specific implementation, vehicle power parameter can include:Engine speed, current gear and throttle.At this It invents in an embodiment, controller can obtain the current rotating speed of engine by engine speed sensor, pass through automobile gear level Sensor obtains current gear, and throttle is obtained by throttle sensor.It is understood that may be used also in vehicle power parameter To include other parameter.
It, can when the hydraulic oil pressure that gearshift performs system control loop can not meet the needs of vehicle current working oil pressure To generate first control signal and second control signal, and first control signal is sent to the second hydraulic oil supply subsystem 13, control the second hydraulic oil supply subsystem 13 starts to work namely controls motor 131 to start to work, by second control signal Two-way switch device 14 is sent to, system control loop output hydraulic pressure oil is performed to gearshift.
In specific implementation, two-way switch device 14 includes two kinds of working conditions, is respectively:Second hydraulic oil is supplied into son Hydraulic oil supply gearshift in system 13 performs system control loop and the second hydraulic oil is supplied the hydraulic pressure in subsystem 13 Oil supply clutch cooling circuit.
After two-way switch device 14 receives second control signal, the second hydraulic oil is supplied according to second control signal Hydraulic oil in subsystem 13 supplies to gearshift and performs system control loop, and performing system control loop for gearshift carries out repairing, Gear shifting force is provided so as to the control for gearshift and the switching of gear.
In specific implementation, when the engine speed less than preset rotation speed, the current gear be in the first gear and When the throttle meets first state condition, generate first control signal and be sent to the second hydraulic oil supply subsystem System 13 generates second control signal and is sent to the two-way switch device 14.
In an embodiment of the present invention, preset rotation speed 800rpm, current gear are 1 grade, throttle corresponding first Status condition is:Throttle parameter is less than 15%.At this point, controller can be predicted to obtain the hydraulic pressure that gearshift performs system control loop Oil pressure can not meet the needs of vehicle current working oil pressure, generate first control signal and second control signal.
It is understood that in practical applications, it can also be according to the performance of various vehicle components and the applied field of reality Scape is adjusted one or more in corresponding preset rotation speed, preset gear and first state condition.Herein to specific Parameter setting values do not limit.
For example, when vehicle carries out dynamic start-stop or static start-stop, engine 122 is stopped, and is driven by engine 122 The first dynamic oil pump 121 can not pump out hydraulic oil out of fuel tank 11.At this point, the vehicle power parameter that controller is got is:Hair Motivation rotating speed is 0rpm, and it is 0 that current gear, which is in 1 grade and throttle,.At this point, gearshift performs the hydraulic pressure in system control loop When oil pressure can not meet the needs of vehicle current working oil pressure, first control signal and second control signal, the first control are generated Signal processed works namely controls motor 131 to start to work for the second hydraulic oil to be controlled to supply subsystem 13.Second control is believed Number it is sent to two-way switch device 14.Two-way switch device 14 supplies the second hydraulic oil according to the second control signal received The hydraulic oil that subsystem 13 pumps out supplies to gearshift and performs system control loop.
For another example, during vehicle is in idling mode or runs at a low speed, since 122 rotating speed of engine is relatively low, first The hydraulic-oil quantity that oil pump 121 is pumped out out of fuel tank 11 is less.The vehicle power parameter that controller is got is:Engine speed For 400rpm, current gear is 1 grade, throttle 10%.At this point, gearshift performs the hydraulic oil pressure in system control loop When can not meet the needs of vehicle current working oil pressure, the first hydraulic oil supply subsystem is the hydraulic pressure that gearshift execution system provides Oily low on fuel performs system worked well to drive to shift gears.At this point, controller generation first control signal and the second control letter Number, first control signal is sent to the second hydraulic oil supply subsystem, control motor 131 is started to work;By the second of generation Control signal is sent to two-way switch device 14.Second hydraulic oil is supplied son by two-way switch device 14 according to second control signal The hydraulic oil that system 13 pumps out supplies to gearshift and performs system control loop.
In specific implementation, when the temperature of double clutch is higher than preset temperature value, the 3rd control signal and the 4th is generated Control signal.3rd control signal is sent to the second hydraulic oil supply subsystem 13 by controller, for controlling the second hydraulic oil Supply subsystem 13 starts to work namely controls motor 131 to start to work, and the 4th control signal is sent to two-way switch device 14, the second hydraulic oil of control supplies subsystem 13 and supplies hydraulic oil to clutch cooling circuit.
After two-way switch device 14 receives four control signals, the second hydraulic oil is supplied according to the 4th control signal Hydraulic oil in subsystem 13 is supplied to clutch cooling circuit, and enough hydraulic oil is provided for the cooling of clutch.
In specific implementation, when the engine speed is in preset rotation speed scope, the current gear is in second gear When position and the throttle the second status condition of satisfaction, generate the 3rd control signal and be simultaneously sent to the second hydraulic oil supply Subsystem generates the 4th control signal and is sent to the two-way switch device.
In an embodiment of the present invention, preset rotation speed scope is 700rpm~1500rpm, and the second gear is 1 grade or 2 grades, Second preset condition is more than 15% for throttle parameter.At this point, the temperature of double clutch is higher than preset temperature value.Controller can give birth to Into the 3rd control signal and the 4th control signal.3rd control signal is sent to the second hydraulic oil supply subsystem by controller 13, the 4th control signal is sent to two-way switch device 14.
It is understood that in practical applications, it can also be according to the performance of various vehicle components and the applied field of reality Scape is adjusted corresponding preset rotation speed, preset gear or first state condition.Design parameter setting value is not done herein It limits.
For example, when vehicle is in low speed high load working condition, such as climbing or large throttle starting, at this point, clutch It is not completely combined, in slipping state, generates substantial amounts of heat, and 122 rotating speed of engine is relatively low, the first oil pump 121 is from fuel tank The hydraulic oil pumped out in 11 is supplied to the oil mass of clutch cooling circuit, can not meet the needs of being cooled down to clutch.Control obtains The vehicle power parameter got is:Engine speed 1000rpm, 1 grade of current gear and oil mass state are 40%.At this point, it is double from The temperature of clutch is higher than preset temperature value, generates the 3rd control signal and the 4th control signal.By the 3rd control signal of generation The second hydraulic oil supply subsystem 13 is sent to, the 3rd control signal is used to that motor 131 to be controlled to start to work.Controller will generate The 4th control signal be sent to two-way switch device 14.After two-way switch device 14 receives the 4th control signal, according to Four control signals export the hydraulic oil in the second hydraulic oil control subsystem 13 to clutch cooling circuit, are the cold of clutch Enough hydraulic oil is but provided.
In specific implementation, check valve can be provided between the second oil pump 132 and two-way switch device 14, passes through list To valve, it can effectively prevent that hydraulic oil is through 14 adverse current of two-way switch device to the second oil pump when the second oil pump 132 is stopped 132。
It can be seen that controller obtains the temperature of double clutch and first liquid respectively according to vehicle power parameter The Pressure oil feeder subsystem supply gearshift performs the hydraulic oil pressure of system control loop.When gearshift performs system control loop Hydraulic oil pressure when can not meet the needs of vehicle current working oil pressure, control the second hydraulic oil supply subsystem is held to gearshift Row system control loop supplies hydraulic oil;When the device temperature of double clutches is higher than preset temperature value, control the second hydraulic oil supply Subsystem supplies hydraulic oil to clutch cooling circuit.So as to meet the feelings for execution system control loop hydraulic oil supply of shifting gears Under condition, so as to improve the cooling capacity to clutch.
With continued reference to Fig. 1, in specific implementation, double-clutch speed changer hydraulic control system can also include:Pilot valve 15. Pilot valve 15 is coupled with two-way switch device 14.Controller can perform the hydraulic pressure of system control loop according to the gearshift got Oil pressure, adjusts the input current value of pilot valve 15, and pilot valve 15 can control two-way switch device according to the current value of itself Hydraulic oil flow direction in 14 can also control the hydraulic oil that the second hydraulic oil supply subsystem 13 pumps out to export to gearshift and perform System control loop or output are to clutch cooling circuit.
For example, when the hydraulic oil pressure that gearshift performs system control loop can not meet the needs of vehicle current working oil pressure When, less than the first current value, pilot valve 15 can control in two-way switch device 14 input current value of control pilot valve 15 Hydraulic oil supplies to gearshift and performs system control loop.
When the hydraulic oil pressure that gearshift performs system control loop meets the hydraulic oil pressure of vehicle current working demand, Controlling the input current value of pilot valve 15, pilot valve 15 can control the hydraulic pressure in two-way switch device 14 higher than the second current value 1. oil is supplied by interface to clutch cooling circuit.
In practical applications, two-way switch device 14 can be mechanical commutation valve, or solenoid directional control valve, it can be with Have the function of to change the device that flows to of hydraulic oil for other, can need make choice according to practical application.It is real in the present invention one It applies in example, two-way switch device 14 is 2/2-way reversal valve.
In specific implementation, in order to control the first hydraulic oil supply subsystem supply clutch cooling circuit hydraulic oil oil Amount, double-clutch speed changer hydraulic control system can also include:First flow valve 16.First flow valve 16 is arranged on the first hydraulic pressure Between oil supply subsystem and clutch cooling circuit, and coupled with pilot valve 15.Pilot valve 15 can according to input current value, The aperture of first flow valve 16 is adjusted, so as to which the first hydraulic oil supply subsystem be controlled to supply to the hydraulic pressure of clutch cooling circuit Oil mass.Input current value and the aperture size of first flow valve 16 are positively correlated in pilot valve 15, are specially:In pilot valve 15 Input current value is bigger, and the aperture of first flow valve 16 is bigger;Correspondingly, input current value is smaller in pilot valve 15, first-class The aperture for measuring valve 16 is smaller.
In specific implementation, oil return line is provided between first flow valve 16 and fuel tank 11 4., it can be by first flow The extra hydraulic oil that valve 16 exports imports fuel tank 11, saves hydraulic oil.
In practical applications, it is understood that there may be shift gears and perform the excessively high situation of the hydraulic oil pressure in system control loop, liquid When pressure oil oil pressure is excessively high, the safety and normal operation of double-clutch speed changer hydraulic control system can be affected.
The hydraulic oil pressure in system control loop is performed for balance gearshift, in an embodiment of the present invention, double clutches become Fast device hydraulic control system can also include:Safety valve 17.Safety valve 17 is arranged on the confession of 16 and first hydraulic oil of first flow valve To between subsystem, it can be opened when the hydraulic oil pressure that gearshift performs system control loop is higher than default oil pressure, pass through peace The pressure relief opening set in full valve exports a part of hydraulic oil, and the hydraulic oil pressure of system control loop is performed to reduce to shift gears.
In specific implementation, double-clutch speed changer hydraulic control system can also be in 16 and first hydraulic oil of first flow valve Oil cooler 18 is provided between supply subsystem.Oil cooler 18 can cool down the hydraulic oil flowed through, so as to improve hydraulic pressure Oil is to the cooling capacity of clutch.
In specific implementation, filter device 19 can be provided between oil cooler 18 and first flow valve 16.Filtering dress The hydraulic oil flowed through can be filtered by putting 19, so as to improve the cleannes of hydraulic oil, reduce hydraulic pressure well cuts pair The influence of oil cooler 18 and other component.
In practical applications, filter device 19 can be pressure filter, or high pressure filter can also be other tools There is the device of filtering function.
In specific implementation, in order to further control supply to clutch cooling circuit hydraulic-oil quantity, it is double from It closes in transmission hydraulic control system and is also provided with second flow valve 20.Second flow valve 20 be arranged on oil cooler 18 with from Between clutch cooling circuit, the hydraulic-oil quantity supplied to clutch cooling circuit can be controlled.
In order to further improve supply to the precision of the hydraulic-oil quantity in clutch cooling circuit, double-clutch speed changer liquid Pressure control system can also include:Constant pressure valve 21.Constant pressure valve 21 is arranged on the both ends of second flow valve 20, can be to second flow The pressure difference of the hydraulic oil pressure of 20 front and back end of valve is adjusted, and maintains the pressure difference of the hydraulic oil pressure of 20 front and back end of second flow valve Balance, to improve the precision of second flow valve 20, so as to further improve supply to the hydraulic pressure in clutch cooling circuit The precision of oil mass.
In specific implementation, double-clutch speed changer hydraulic control system can also include:By-passing valve 22.By-passing valve 22 is set Between the output terminal of first flow valve 16 and the input terminal of second flow valve 20.The hydraulic oil exported through first flow valve 16 passes through After oil cooler 18 cools down, temperature reduces, and generates pressure drop.When the hydraulic oil pressure of 19 upstream of filter device is cold with passing through oil cooler 18 But when the oil pressure difference between the hydraulic oil pressure between hydraulic oil pressure after is more than predetermined threshold value, by-passing valve 22 is opened. After by-passing valve 22 is opened, directly supplied to clutch and cooled down by second flow valve 20 through 16 output hydraulic pressure oil of first flow valve Circuit, without filter device 19 and oil cooler 18, so as to improve clutch cooling efficiency.
In specific implementation, tooth shaft lubricant passage way 23, tooth shaft lubricant passage way 23 are also provided in 18 downstream of oil cooler Lubricating oil can be provided for gear and bearing.
In specific implementation, gearshift, which performs system control loop, can include clutch control circuit 24, wherein, clutch Control loop 24 can include odd number clutch control circuit, even number clutch control circuit.
Odd number clutch control can include in circuit:First pressure valve 241.241 and first hydraulic oil of first pressure valve Supply subsystem and the second hydraulic oil supply subsystem 13 connect.Controller can be operated according to vehicle shift, obtain target shift Position, and according to target gear, the electric current inputted to first pressure valve 241 is controlled.First pressure valve 241 is according to input electricity Flow valuve adjusts the aperture of itself, adjusts the hydraulic oil pressure in odd number clutch control circuit, is exported by first pressure valve 241 Hydraulic oil 2. supplied to odd number clutch by interface, so as to controlling the action of odd number clutch, wherein, the first pressure Input current value and aperture size positive correlation in power valve 241.
It, can be in the upper of first pressure valve 241 in order to improve the cleannes of the hydraulic oil in odd number clutch control circuit Trip is provided with filter, can also the downstream of first pressure valve 241 be provided with filter, can also be in first pressure valve 241 Upstream and downstream respectively set a filter.
In specific implementation, first pressure valve 241 can be proportional pressure valve, or direct-acting electromagnetic valve.
In specific implementation, can include in odd number clutch control circuit:Pressure-regulating device 242.Pressure adjusts dress 242 downstreams for being arranged on first pressure valve 241 are put, the hydraulic oil pressure in odd number clutch control circuit can be adjusted It is whole.When the hydraulic oil pressure in odd number clutch control circuit is higher than maximum oil pressure, pressure-regulating device 242 can be by certainly The pressure relief opening output par, c hydraulic oil of body, to reduce the hydraulic oil pressure in odd number clutch control circuit.
In specific implementation, can also include in odd number clutch control circuit:Device for pressure measurement 243.Pressure measurement Device 243 is arranged on the downstream of first pressure valve 241, can measure the hydraulic oil pressure in odd number clutch control circuit.
Even number clutch control can include in circuit:First pressure valve 244.244 and first hydraulic oil of first pressure valve Supply subsystem and the second hydraulic oil supply subsystem 13 connect.Controller can be operated according to vehicle shift, obtain target shift Position, and according to target gear, the electric current inputted to first pressure valve 244 is controlled.First pressure valve 244 can be according to defeated Enter current value and adjust the aperture of itself, adjust the hydraulic oil pressure in even number clutch control circuit, pass through first pressure valve 244 3. the hydraulic oil of output is supplied by interface to even number clutch, controlled so as to the action of dual numbers clutch, wherein, the Input current value and aperture size positive correlation in one pressure valve 244.
It, can be in the upper of first pressure valve 244 in order to improve the cleannes of the hydraulic oil in even number clutch control circuit Trip is provided with filter, can also the downstream of first pressure valve 244 be provided with filter, can also be in first pressure valve 244 Upstream and downstream respectively set a filter.
In specific implementation, first pressure valve 244 can be proportional pressure valve, or Direct-action electromagnetic valve.
In specific implementation, can include in even number clutch control circuit:Pressure-regulating device 245.Pressure adjusts dress 245 downstreams for being arranged on first pressure valve 244 are put, can be adjusted with the hydraulic oil pressure in dual numbers clutch control circuit It is whole.When the hydraulic oil pressure in even number clutch control circuit is higher than maximum oil pressure, pressure-regulating device 245 can be by certainly The pressure relief opening output par, c hydraulic oil of body, to reduce the hydraulic oil pressure in even number clutch control circuit.In specific implementation, Even number clutch control can also include in circuit:Device for pressure measurement 246.Device for pressure measurement 246 is arranged on first pressure The downstream of valve 244 can measure the hydraulic oil pressure in even number clutch control circuit.
In specific implementation, gearshift performs can include in system control loop:Gear shift fork actuator control loop 25. Gear shift fork actuator control loop 25 includes:Odd gear shift fork actuator control loop and even gear shift fork actuator control Circuit processed.Controller can be operated according to vehicle shift, obtained target gear, and according to target gear, controlled odd/even shelves Hydraulic oil pressure and hydraulic oil flow direction in the shift fork actuator control loop of position, so as to be performed to the corresponding shift fork of target gear The movement of device is controlled.
It can include in odd/even gear shift fork actuator control loop:Shift fork actuator, second pressure valve, the 3rd Flow valve and multi-way valve.
It is illustrated by taking 7 fast wet-type dual-clutch hydraulic control systems as an example.Odd gear shift fork actuator control loop With even gear shift fork actuator control loop, wherein, odd gear includes:1 grade, 3 grades, 5 grades and 7 grades;Even gear includes: 2 grades, 4 grades, 6 grades and reverse gear (R grades).Gear shift fork actuator control loop 25 includes 4 shift fork actuators.Odd gear shift fork Actuator includes:Shift fork actuator 2581 and shift fork actuator 2582, wherein shift fork actuator 2581 control 1 grade and 3 grades, shift fork Actuator 2582 controls 5 grades and 7 grades.Even gear shift fork actuator includes shift fork actuator 2591 and shift fork actuator 2592, Wherein shift fork actuator 2592 controls 2 grades and 4 grades, and shift fork actuator 2591 controls 6 grades and R grades.
It can include in odd gear shift fork actuator control loop:Shift fork actuator 2581, shift fork actuator 2582, Two pressure valve 251, the 3rd flow valve 252 and multi-way valve 253.Controller can be operated according to vehicle shift, obtain target shift Position, and according to target gear, the input current value of control second pressure valve 251.Second pressure valve 251 and first hydraulic oil Supply subsystem and second hydraulic oil supply subsystem 13 couple, and can be controlled the aperture of itself big according to input current value It is small, so as to adjust the hydraulic oil pressure of odd gear shift fork actuator control loop, wherein, 251 input current of second pressure valve Value is positively correlated with aperture size.
It in practical applications, can be in order to improve the cleanliness of hydraulic oil in odd gear shift fork actuator control loop Filter is set in the upstream of second pressure valve 251, can also filter be set in the downstream of second pressure valve 251, it can be with Filter is respectively provided in the upstream of second pressure valve 251 and downstream.
In an embodiment of the present invention, second pressure valve 251 is ratio pressure solenoid valve.Controller can also be according to vehicle Gear shift operation obtains target gear, and according to target gear, the input current value of the 3rd flow valve 252 of control.3rd flow valve 252 are arranged between second pressure valve 251 and multi-way valve 253, can be according to itself input current value, and the aperture for adjusting itself is big It is small, so as to the hydraulic-oil quantity by adjusting odd gear shift fork actuator control loop, corresponding shift fork to be controlled to hold The movement velocity of row device.The input current value of 3rd flow valve 252 and aperture size positive correlation.
3rd flow valve 252 can accurately control the movement velocity of shift fork actuator according to input current value.So that The movement of shift fork actuator coordinated signals yoke bar, stirs synchronizer, engages gear, to control double-clutch speed changer gear Lifting.
In specific implementation, the 3rd flow valve 252 can be proportional flow control valve, or direct-acting electromagnetic valve.
In an embodiment of the present invention, the 3rd flow valve 252 is the proportional flow control valve of 3-position 4-way.
In practical applications, multi-way valve 253 is operated according to vehicle shift, obtains target gear, and according to target gear, control The hydraulic oil for making the output of the 3rd flow valve 252 is supplied to the shift fork actuator of respective notch.
It can include in even gear shift fork actuator control loop:Shift fork actuator 2591, shift fork actuator 2592, Two pressure valve 254, the 3rd flow valve 255 and multi-way valve 256.Controller can be operated according to vehicle shift, obtain target shift Position, and according to target gear, the input current value of control second pressure valve 254.Second pressure valve 254 and first hydraulic oil Supply subsystem and second hydraulic oil supply subsystem 13 couple, and can be controlled the aperture of itself big according to input current value It is small, so as to adjust the hydraulic oil pressure of even gear shift fork actuator control loop, wherein, 254 input current of second pressure valve Value and aperture size positive correlation.
It in practical applications, can be in order to improve the cleanliness of hydraulic oil in even gear shift fork actuator control loop Filter is set in the upstream of second pressure valve 254, can also filter be set in the downstream of second pressure valve 254, it can be with Filter is respectively provided in the upstream of second pressure valve 254 and downstream.
In an embodiment of the present invention, second pressure valve 254 is ratio pressure solenoid valve.Controller can also be according to vehicle Gear shift operation obtains target gear, and according to target gear, the input current value of the 3rd flow valve 255 of control.3rd flow valve 255 are arranged between second pressure valve 254 and multi-way valve 256, according to input current value, can adjust the aperture size of itself, So as to the hydraulic-oil quantity by adjusting even gear shift fork actuator control loop, to control corresponding shift fork actuator Movement velocity.The input current value of 3rd flow valve 255 is positively correlated with aperture size.
3rd flow valve 255 can accurately control the movement velocity of shift fork actuator according to input current value.So that The movement of shift fork actuator coordinated signals yoke bar, stirs synchronizer, engages gear, to control double-clutch speed changer gear Lifting.
In specific implementation, the 3rd flow valve 255 can be proportional flow control valve, or direct-acting electromagnetic valve.
In an embodiment of the present invention, the 3rd flow valve 255 is the proportional flow control valve of 3-position 4-way.
In practical applications, multi-way valve 256 is operated according to vehicle shift, obtains target gear, and according to target gear, control The hydraulic oil for making the output of the 3rd flow valve is supplied to the shift fork actuator of respective notch.
In specific implementation, gear shift fork actuator control loop 25 can also include:Switch valve 257.Switch valve 257 1 End is coupled with multi-way valve 253 and multi-way valve 256, and the other end is coupled with second pressure valve 251 and second pressure valve 254.Work as control When device detects that odd/even gear shift fork actuator control loop breaks down, the 5th control signal is generated, and is sent to out Valve 257 is closed, switch valve 257 is closed after receiving the 5th control signal.
When odd gear shift fork actuator control loop failure, switch valve 257 is closed, and even gear shift fork performs control The hydraulic oil in circuit can provide hydraulic oil by execution corresponding actions of the switch valve for the shift fork actuator of odd gear;Accordingly Ground, when even gear shift fork actuator control loop failure, switch valve 257 is closed, and odd gear shift fork actuator controls back Road provides hydraulic oil for the execution corresponding actions of the shift fork actuator of even gear.
Shift fork is held with the form that the 3rd flow valve is connected using second pressure valve in gear shift fork actuator control loop Row device is controlled, and while the control accuracy to shift fork actuator is improved, also enhances the robustness of system.
In specific implementation, 4 shift fork actuators in gear shift fork actuator control loop can be with sealing work( The double acting homalographic piston cylinder of energy.In addition, the size structure of 4 shift fork actuators can be identical, saved so as to reach The purpose of cost.
With reference to figure 2, a kind of control method of double-clutch speed changer hydraulic control system in the embodiment of the present invention is given Flow chart.With reference to Fig. 1, the controlling party to a kind of double-clutch speed changer hydraulic control system provided in the embodiment of the present invention Method illustrates.
Double-clutch speed changer hydraulic control system includes:Controller, the first hydraulic oil supply subsystem, the second hydraulic oil Supply subsystem, clutch cooling circuit and gearshift execution system control back, with reference to double-clutch speed changer hydraulic control Control method is described in detail in system.
Step S21 according to vehicle power parameter, obtains the temperature of double clutch and first hydraulic oil supply respectively The subsystem supply gearshift performs the hydraulic oil pressure of system control loop.
In specific implementation, the vehicle power parameter can include:Engine speed, current gear and throttle.
Whether step S22, judging the hydraulic oil pressure of the gearshift got execution system control loop can not meet The demand oil pressure of vehicle current working.
When judging result is to be, then S23 is entered step;When judging result is no, S24 is entered step.
Step S23 controls second hydraulic oil to supply subsystem and performs system control loop supply liquid to the gearshift Pressure oil.
In specific implementation, two-way switch device can be provided in double clutch controller hydraulic control systems, it is two-way Switching device and the supply subsystem coupling of the second hydraulic oil.When the hydraulic oil pressure that gearshift performs system control loop can not meet During the demand oil pressure of vehicle current working, controller can control the second hydraulic oil supply subsystem to start to work, and can control Hydraulic oil flow direction in two-way switch device processed controls back so as to which the second hydraulic oil be controlled to supply subsystem to gearshift execution system Road supplies hydraulic oil.
In specific implementation, when the engine speed less than preset rotation speed, the current gear be in the first gear and When the throttle meets first state condition, second hydraulic oil is controlled to supply subsystem to the gearshift execution system Control loop supplies hydraulic oil.
Whether step S24 judges the temperature of double clutch higher than preset temperature value.When judging result is to be, then enter Step S25;When judging result is no, then terminate flow.
Step S25 controls second hydraulic oil to supply subsystem and supplies hydraulic oil to the clutch cooling circuit.
In specific implementation, when the temperature of double clutch is higher than preset temperature value, the first hydraulic oil supply subsystem is When the hydraulic oil that clutch cooling circuit provides is not enough to cooling clutch, controller can control the second hydraulic oil to supply subsystem System is started to work, and the hydraulic oil in two-way switch device can be controlled to flow to, so as to control the second hydraulic oil supply System supplies hydraulic oil to clutch cooling circuit, to improve the cooling capacity to clutch.
In specific implementation, when the engine speed is in preset rotation speed scope, the current gear is in second gear When position and the throttle the second status condition of satisfaction, control the second hydraulic oil supply subsystem cold to the clutch But circuit supply hydraulic oil.
It should be noted that logically there is no direct sequencings by step S22 and step S24.In practical application In, step S22 can be first carried out, then performs step S24;Step S24 can also be first carried out, then performs step S22;May be used also To perform step S22 and step S24 simultaneously.
It in specific implementation, can also be to the work of engine when the temperature to double clutch is higher than preset temperature value State is detected, and when engine is in running order, controller can control the first hydraulic oil to supply subsystem to clutch Device cooling circuit supplies hydraulic oil.
It can be seen that controller obtains the temperature of double clutch and first liquid respectively according to vehicle power parameter The Pressure oil feeder subsystem supply gearshift performs the hydraulic oil pressure of system control loop.When gearshift performs system control loop Hydraulic oil pressure when can not meet the needs of vehicle current working oil pressure, control the second hydraulic oil supply subsystem is held to gearshift Row system control loop supplies hydraulic oil;When the temperature of double clutch is higher than preset temperature value, control the second hydraulic oil supply Subsystem supplies hydraulic oil to clutch cooling circuit.So as to meet the feelings for execution system control loop hydraulic oil supply of shifting gears Under condition, the cooling capacity to clutch is improved.
In specific implementation, pilot valve and two-way switch device can be provided in double-clutch speed changer control system, Controller can also perform the hydraulic oil pressure of system control loop according to the gearshift, adjust the input current value of pilot valve. Pilot valve controls the hydraulic oil in two-way switch device to supply to the gearshift execution system and controls back according to input current value Hydraulic oil in road or the control two-way switch device is supplied to clutch cooling circuit.
In specific implementation, controller can also be according to the temperature of the double clutch got, to clutch cooling circuit Middle hydraulic-oil quantity is adjusted.
In specific implementation, first flow valve is provided in double-clutch speed changer hydraulic control system, first flow valve can To control the hydraulic-oil quantity in the first hydraulic oil supply subsystem supply clutch cooling circuit.
In specific implementation, second flow valve is provided in double-clutch speed changer hydraulic control system, second flow valve can Further to control the hydraulic-oil quantity in the first hydraulic oil supply subsystem supply clutch cooling circuit.
In specific implementation, when the hydraulic oil pressure in execution system of shifting gears is more than default oil pressure, gearshift can be reduced Perform the hydraulic oil pressure in system control loop.
In an embodiment of the present invention, safety valve can be provided in double-clutch speed changer hydraulic control system, works as gearshift Hydraulic oil pressure in execution system is more than default oil pressure, and safety valve is opened, and can perform gearshift in system control loop A hydraulic oil output part, so as to reduce the hydraulic oil pressure in gearshift execution system control loop.
Gearshift, which performs system control loop, to be included:Odd/even clutch control circuit.Controller can be according to replacing vehicle Gear operation, obtains target gear, and according to target gear, controls the hydraulic oil in the odd/even clutch control circuit Oil pressure.
In specific implementation, first pressure valve is provided in odd/even clutch control circuit, control can basis Vehicle shift operates, and obtains target gear, and according to target gear, the aperture size of control first pressure valve, so as to control very Hydraulic oil pressure in number/even number clutch control circuit.
Gearshift, which performs system control loop, to be included:Odd/even gear shift fork actuator control loop.Controller can be with It is operated according to vehicle shift, obtains target gear, and according to target gear, control the odd/even gear shift fork actuator Hydraulic oil pressure and hydraulic oil flow direction in control loop, to control the movement of corresponding gear shift fork actuator.
In an embodiment of the present invention, it is provided in odd/even gear shift fork actuator control loop:Actuator, Two pressure valve, the 3rd flow valve and multi-way valve.Controller is operated according to vehicle shift, obtains target gear, and according to target Gear controls the aperture size of second pressure valve, so as to adjust the hydraulic pressure in odd/even gear shift fork actuator control loop Oil pressure.
Controller is operated according to vehicle shift, obtains target gear, and according to target gear, the 3rd flow valve of control is opened Size is spent, so as to adjust the hydraulic-oil quantity in odd/even gear shift fork actuator control loop, so as to control targe gear The movement velocity of corresponding shift fork actuator.
Controller is operated according to vehicle shift, is obtained target gear, and according to target gear, is controlled hydraulic oil in multi-way valve Supply is to corresponding shift fork actuator, so as to fulfill the gear shift operation of double-clutch speed changer.
In practical applications, it is also possible to there is a situation where the failure of odd/even gear shift fork actuator control loop, In order to enable during one of them failure of odd/even gear shift fork actuator control loop, gear fork controls circuit energy Normal work.In an embodiment of the present invention, when controller detects that odd/even gear shift fork actuator control loop occurs During failure, the even/odd gear shift fork actuator control loop is controlled to the odd/even gear shift fork actuator control Circuit supplies hydraulic oil processed.
In specific implementation, switch valve can be provided between second pressure valve and multi-way valve, when controller detects When odd gear shift fork actuator control loop breaks down, closure switch valve so that even gear shift fork actuator controls back Road can supply hydraulic oil to odd gear shift fork actuator control loop;Correspondingly, when controller detects that even gear is dialled When pitching the failure of actuator control loop, closure switch valve so that odd gear shift fork actuator control loop can be to idol Number gear shift fork actuator control loop supply hydraulic oil.
In specific implementation, a kind of concrete operating principle and stream of the control method of double-clutch speed changer hydraulic control system Journey is referred to the explanation in the double-clutch speed changer hydraulic control system provided in the above embodiment of the present invention, does not do herein superfluous It states.
It should be noted that appeared in the embodiment of the present invention, such as first pressure valve, second pressure valve, first flow Valve, second flow valve, " first " in the 3rd flow valve, " second ", " the 3rd " etc. are not intended to represent the order of relevant device, Or a certain definite equipment, only for convenience of description.For same statement but different equipment is marked, difference is only used for and is located at difference The equipment of branch road, type or structure can be identical or different, as second pressure valve 251 and second is pressed Power valve 254 all can be proportional pressure valve, can also be direct-acting electromagnetic valve, can be with one for proportional pressure valve, one For direct-acting electromagnetic valve.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can Relevant hardware to be instructed to complete by program, which can be stored in a computer readable storage medium, storage Medium can include:ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Any those skilled in the art are not departing from this It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute Subject to the scope of restriction.

Claims (33)

  1. A kind of 1. control method of double-clutch speed changer hydraulic control system, which is characterized in that the double-clutch speed changer hydraulic pressure Control system include controller, the first hydraulic oil supply subsystem, the second hydraulic oil supply subsystem, clutch cooling circuit with And gearshift performs system control loop;The control method includes:
    The controller obtains the temperature of double clutch and first hydraulic oil supply respectively according to vehicle power parameter The system supply gearshift performs the hydraulic oil pressure of system control loop;
    When the hydraulic oil pressure that the gearshift performs system control loop can not meet the needs of vehicle current working oil pressure, control It makes second hydraulic oil and supplies subsystem to the gearshift execution system control loop supply hydraulic oil;
    When the temperature of the double clutch is higher than preset temperature value, control second hydraulic oil supply subsystem to it is described from Clutch cooling circuit supplies hydraulic oil.
  2. 2. the control method of double-clutch speed changer hydraulic control system according to claim 1, which is characterized in that the vehicle Kinetic parameter includes:Engine speed, current gear and throttle.
  3. 3. the control method of double-clutch speed changer hydraulic control system according to claim 2, which is characterized in that described to work as When the hydraulic oil pressure that the gearshift performs system control loop can not meet the needs of vehicle current working oil pressure, described in control Second hydraulic oil supplies subsystem and performs system control loop supply hydraulic oil to the gearshift, including:
    When the engine speed be in the first gear and throttle satisfaction the less than preset rotation speed, the current gear During one status condition, second hydraulic oil is controlled to supply subsystem and performs system control loop supply hydraulic pressure to the gearshift Oil.
  4. 4. the control method of double-clutch speed changer hydraulic control system according to claim 2, which is characterized in that described to work as When the temperature of the double clutch is higher than preset temperature value, control the second hydraulic oil supply subsystem cold to the clutch But circuit supply hydraulic oil, including:
    When the engine speed is in preset rotation speed scope, the current gear is in the second gear and the throttle is expired During the second status condition of foot, second hydraulic oil is controlled to supply subsystem and supplies hydraulic oil to the clutch cooling circuit.
  5. 5. the control method of double-clutch speed changer hydraulic control system according to claim 1, which is characterized in that controlling When second hydraulic oil supplies subsystem to clutch cooling circuit supply hydraulic oil, further include:Start when detecting When machine is in running order, first hydraulic oil is controlled to supply subsystem and supplies hydraulic oil to the clutch cooling circuit.
  6. 6. the control method of double-clutch speed changer hydraulic control system according to claim 1, which is characterized in that also wrap It includes:
    The controller is further adapted for according to the vehicle power parameter, obtains the hydraulic pressure that the gearshift performs system control loop Oil pressure adjusts the input current value of pilot valve;So that the pilot valve is controlled according to input current value in two-way switch device Hydraulic oil supply the hydraulic oil performed to the gearshift in system control loop or the control two-way switch device supply to Clutch cooling circuit.
  7. 7. the control method of double-clutch speed changer hydraulic control system according to claim 1, which is characterized in that also wrap It includes:
    For the controller according to the vehicle power parameter, the temperature of the double clutch got adjusts the clutch Hydraulic-oil quantity in cooling circuit, and the temperature of the double clutch and hydraulic-oil quantity positive in the clutch cooling circuit It closes.
  8. 8. the control method of double-clutch speed changer hydraulic control system according to claim 1, which is characterized in that also wrap It includes:
    The controller performs the hydraulic oil in system control loop according to the gearshift according to vehicle power parameter acquiring Oil pressure when the hydraulic oil pressure that the gearshift is performed in system control loop is more than default oil pressure, opens the peace in working connection Full valve reduces the hydraulic oil pressure in the gearshift execution system control loop.
  9. 9. the control method of double-clutch speed changer hydraulic control system according to claim 1, which is characterized in that described to change Gear, which performs system control loop, includes odd/even clutch control circuit;The control method further includes:
    The controller is operated according to vehicle shift, obtains target gear;
    According to the target gear, the hydraulic oil pressure in the odd/even clutch control circuit is adjusted.
  10. 10. the control method of double-clutch speed changer hydraulic control system according to claim 1, which is characterized in that described Gearshift, which performs system control loop, to be included:Odd/even gear shift fork actuator control loop;The control method further includes:
    The controller is operated according to vehicle shift, obtains target gear;
    According to the target gear, control the hydraulic oil pressure in the odd/even gear shift fork actuator control loop with And hydraulic oil flow direction, to control the movement of the corresponding gear shift fork actuator of the target gear.
  11. 11. the control method of double-clutch speed changer hydraulic control system according to claim 10, which is characterized in that also wrap It includes:
    When the controller detects that the odd/even gear shift fork actuator control loop breaks down, the idol is controlled Number/odd gear shift fork actuator control loop provides hydraulic oil to the odd/even gear shift fork actuator control loop.
  12. 12. a kind of double-clutch speed changer hydraulic control system, which is characterized in that including:Controller, two-way switch device, first Hydraulic oil supply subsystem, the second hydraulic oil supply subsystem, clutch cooling circuit and gearshift perform system control loop, Wherein:
    The controller, suitable for according to vehicle power parameter, obtaining the temperature of double clutch and first hydraulic oil respectively Supply the hydraulic oil pressure that the subsystem supply gearshift performs system control loop;When the gearshift performs system control loop Hydraulic oil pressure when can not meet the needs of vehicle current working oil pressure, generate first control signal and be sent to described second Hydraulic oil supplies subsystem, generates second control signal and is sent to the two-way switch device;And when the double clutch Temperature when being higher than preset temperature value, the 3rd control signal of generation is simultaneously sent to second hydraulic oil supply subsystem, generation 4th control signal is simultaneously sent to the two-way switch device;
    Second hydraulic oil supplies subsystem, suitable for receiving the first control signal or the 3rd control signal When, it starts to work;
    The two-way switch device, suitable for according to the second control signal received, second hydraulic oil is supplied son The hydraulic oil of system supplies to the gearshift and performs system control loop;And according to the 4th control signal received, The hydraulic oil of second hydraulic oil supply subsystem is supplied to the clutch cooling circuit.
  13. 13. double-clutch speed changer hydraulic control system according to claim 12, which is characterized in that the vehicle power ginseng Number includes:Engine speed, current gear and throttle.
  14. 14. double-clutch speed changer hydraulic control system according to claim 13, which is characterized in that the controller is fitted In be in the first gear and throttle satisfaction first less than preset rotation speed, the current gear when the engine speed During status condition, generate first control signal and be sent to the second hydraulic oil supply subsystem, generate second control signal And it is sent to the two-way switch device.
  15. 15. double-clutch speed changer hydraulic control system according to claim 13, which is characterized in that the controller is fitted In be in preset rotation speed scope when the engine speed, the current gear is in the second gear and the throttle meet During the second status condition, generate the 3rd control signal and be sent to the second hydraulic oil supply subsystem, the 4th control of generation Signal is simultaneously sent to the two-way switch device.
  16. 16. double-clutch speed changer hydraulic control system according to claim 12, which is characterized in that first hydraulic oil Supply subsystem includes:First oil pump is coupled with engine, suitable for being pumped into the hydraulic oil in fuel tank under the driving of engine System control loop and the clutch cooling circuit are performed to the gearshift.
  17. 17. double-clutch speed changer hydraulic control system according to claim 16, which is characterized in that the controller, also Suitable for when the temperature of the double clutch is higher than preset temperature value and the in running order engine, controlling described first Hydraulic oil supplies subsystem and supplies hydraulic oil to the clutch cooling circuit.
  18. 18. double-clutch speed changer hydraulic control system according to claim 12, which is characterized in that second hydraulic oil Supply subsystem includes:Motor, the second oil pump, wherein:
    The motor is coupled with second oil pump, suitable for driving second operation of oil pump;
    Second oil pump performs system control loop or the clutch suitable for the hydraulic oil in fuel tank is pumped into the gearshift Device cooling circuit.
  19. 19. double-clutch speed changer hydraulic control system according to claim 12, which is characterized in that further include:
    Pilot valve is coupled with the two-way switch device;
    The controller is further adapted for performing system control loop according to the gearshift accessed by the vehicle power parameter Hydraulic oil pressure adjusts the input current value of the pilot valve;
    The pilot valve, suitable for when input current value is less than default first current value, controlling in the two-way switch device Hydraulic oil supplies to the gearshift and performs system control loop;When input current value is more than default second current value, institute is controlled It states the hydraulic oil in two-way switch device to supply to clutch cooling circuit, first current value is less than second electric current Value.
  20. 20. double-clutch speed changer hydraulic control system according to claim 19, which is characterized in that further include:
    First flow valve is arranged between first hydraulic oil supply subsystem and the clutch cooling circuit, and with institute State pilot valve coupling;
    The pilot valve is further adapted for according to input current value, adjusts the aperture of the first flow valve, to adjust the clutch Hydraulic-oil quantity in cooling circuit, and input current value and the aperture positive correlation of the first flow valve.
  21. 21. double-clutch speed changer hydraulic control system according to claim 20, which is characterized in that further include:
    Safety valve is arranged between the first flow valve and first hydraulic oil supply subsystem, suitable in the gearshift It is opened when performing the hydraulic oil pressure of system control loop higher than default oil pressure, system control loop is performed to reduce the gearshift Hydraulic oil pressure.
  22. 22. double-clutch speed changer hydraulic control system according to claim 20, which is characterized in that further include:
    Oil cooler is arranged between the clutch cooling circuit and the first flow valve, suitable for cooling down the hydraulic oil flowed through.
  23. 23. double-clutch speed changer hydraulic control system according to claim 22, which is characterized in that further include:
    Filter device is arranged between the oil cooler and the first flow valve, suitable for filtering the hydraulic oil flowed through.
  24. 24. double-clutch speed changer hydraulic control system according to claim 23, which is characterized in that further include:
    Second flow valve is arranged between the oil cooler and the clutch cooling circuit;
    The controller is further adapted for being adjusted the hydraulic fluid flow rate supplied to the clutch cooling circuit.
  25. 25. double-clutch speed changer hydraulic control system according to claim 24, which is characterized in that further include:
    Constant pressure valve is arranged between the input terminal and output terminal of the second flow valve, suitable for being inputted to the second flow valve The pressure difference of hydraulic oil pressure between end and output terminal is adjusted.
  26. 26. double-clutch speed changer hydraulic control system according to claim 24, which is characterized in that further include:
    By-passing valve is arranged between the output terminal of the first flow valve and the input terminal of the second flow valve, suitable in institute It is opened when stating the pressure difference of filter device upstream and the hydraulic oil pressure in the oil cooler downstream more than predetermined threshold value.
  27. 27. double-clutch speed changer hydraulic control system according to claim 22, which is characterized in that further include:
    Tooth shaft lubricant passage way is arranged on the downstream of the oil cooler, and is connected and turns on the oil cooler, suitable for gear and Bearing is lubricated.
  28. 28. double-clutch speed changer hydraulic control system according to claim 12, which is characterized in that the gearshift performs system System control loop includes:Clutch control circuit;The clutch control circuit includes:
    Odd/even clutch control circuit;
    The odd/even clutch control circuit includes:First pressure valve supplies subsystem and institute with first hydraulic oil State the supply subsystem coupling of the second hydraulic oil;
    The controller is further adapted for being operated according to vehicle shift, obtains target gear, and according to the target gear, controls institute The input current value of first pressure valve is stated, to adjust the hydraulic oil pressure in the odd/even clutch control circuit, and institute The input current value for stating first pressure valve and the hydraulic oil pressure positive correlation in the odd/even clutch control circuit.
  29. 29. double-clutch speed changer hydraulic control system according to claim 28, which is characterized in that the clutch control Circuit further includes:Pressure-regulating device is arranged on the downstream of the first pressure valve, suitable for adjusting the odd/even clutch Hydraulic oil pressure in device control loop.
  30. 30. double-clutch speed changer hydraulic control system according to claim 28, which is characterized in that the clutch control Circuit further includes:Device for pressure measurement is arranged on the downstream of the first pressure valve, suitable for measuring the odd/even clutch Hydraulic oil pressure in device control loop.
  31. 31. double-clutch speed changer hydraulic control system according to claim 12, which is characterized in that the gearshift performs system System control loop includes:Gear shift fork actuator control loop;The gear shift fork actuator control loop includes:Odd number/idol Number gear shift fork actuator control loop;
    The controller suitable for being operated according to vehicle shift, obtains target gear and according to target gear control Hydraulic oil pressure and hydraulic oil flow direction in odd/even gear shift fork actuator control loop, to control the target shift The movement of the corresponding gear shift fork actuator in position.
  32. 32. double-clutch speed changer hydraulic control system according to claim 31, which is characterized in that the odd/even Gear shift fork actuator control loop includes:Second pressure valve, the 3rd flow valve, multi-way valve,
    Wherein:
    The controller suitable for being operated according to vehicle shift, obtains the target gear and according to the target gear, control Make the input current value of the second pressure valve, hydraulic oil in the input current value of the 3rd flow valve and the multi-way valve Flow direction;
    The second pressure valve supplies subsystem and second hydraulic oil supply subsystem coupling with first hydraulic oil respectively It connects, suitable for adjusting aperture according to input current value, to adjust the hydraulic pressure of the odd/even gear shift fork actuator control loop Oil pressure, and the input current value of the second pressure valve and aperture positive correlation;
    3rd flow valve is arranged between the second pressure valve and the multi-way valve, suitable for according to input current value tune Whole aperture adjusts the hydraulic-oil quantity of the odd/even gear shift fork actuator control loop, the shift fork to be controlled to perform The movement velocity of device.
  33. 33. double-clutch speed changer hydraulic control system according to claim 32, which is characterized in that the gear shift fork is held Row device control loop, further includes:Switch valve is arranged between the multi-way valve and the second pressure valve;
    The controller is further adapted for when detecting that the odd/even gear shift fork actuator control loop breaks down, raw Into the 5th control signal, and it is sent to the switch valve;
    The switch valve, suitable for being closed after the 5th control signal is received.
CN201611027716.6A 2016-11-22 2016-11-22 Double-clutch speed changer hydraulic control system and control method Pending CN108087544A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611027716.6A CN108087544A (en) 2016-11-22 2016-11-22 Double-clutch speed changer hydraulic control system and control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611027716.6A CN108087544A (en) 2016-11-22 2016-11-22 Double-clutch speed changer hydraulic control system and control method

Publications (1)

Publication Number Publication Date
CN108087544A true CN108087544A (en) 2018-05-29

Family

ID=62168477

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611027716.6A Pending CN108087544A (en) 2016-11-22 2016-11-22 Double-clutch speed changer hydraulic control system and control method

Country Status (1)

Country Link
CN (1) CN108087544A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111425381A (en) * 2020-06-11 2020-07-17 盛瑞传动股份有限公司 Control method and device for electronic oil pump, electronic equipment and storage medium

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101082376A (en) * 2006-05-25 2007-12-05 通用汽车环球科技运作公司 Method and apparatus to control hydraulic pressure in an electro-mechanical transmission
CN102168754A (en) * 2011-04-08 2011-08-31 浙江万里扬变速器股份有限公司 Hydraulic control system for wet-type double-clutch automatic transmission
CN102652235A (en) * 2009-12-31 2012-08-29 博格华纳公司 Automatic transmission having high pressure actuation and low pressure lube hydraulic circuit
CN103629344A (en) * 2013-11-18 2014-03-12 浙江吉利控股集团有限公司 Wet type double-clutch automatic gearbox transmission system and transmission control method thereof
CN204852310U (en) * 2015-08-26 2015-12-09 博格华纳汽车零部件(宁波)有限公司 A double pump system for double clutch derailleur
CN204985686U (en) * 2015-07-27 2016-01-20 安徽江淮汽车股份有限公司 A hydraulic control system for hybrid double clutch automatic transmission
CN105465355A (en) * 2014-09-03 2016-04-06 上海汽车集团股份有限公司 Dual-clutch transmission and hydraulic control system thereof
CN105626844A (en) * 2014-10-28 2016-06-01 上海汽车集团股份有限公司 Hydraulic control system of wet type double-clutch speed changing box
CN105864424A (en) * 2016-04-07 2016-08-17 宁波上中下自动变速器有限公司 Double-clutch transmission hydraulic control system
WO2016152533A1 (en) * 2015-03-26 2016-09-29 ジヤトコ株式会社 Vehicular hydraulic control device and hydraulic control method
CN106062427A (en) * 2014-03-06 2016-10-26 腓特烈斯港齿轮工厂股份公司 Method for controlling a hydraulic-medium supply system of an automatic transmission

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101082376A (en) * 2006-05-25 2007-12-05 通用汽车环球科技运作公司 Method and apparatus to control hydraulic pressure in an electro-mechanical transmission
CN102652235A (en) * 2009-12-31 2012-08-29 博格华纳公司 Automatic transmission having high pressure actuation and low pressure lube hydraulic circuit
CN102168754A (en) * 2011-04-08 2011-08-31 浙江万里扬变速器股份有限公司 Hydraulic control system for wet-type double-clutch automatic transmission
CN103629344A (en) * 2013-11-18 2014-03-12 浙江吉利控股集团有限公司 Wet type double-clutch automatic gearbox transmission system and transmission control method thereof
CN106062427A (en) * 2014-03-06 2016-10-26 腓特烈斯港齿轮工厂股份公司 Method for controlling a hydraulic-medium supply system of an automatic transmission
CN105465355A (en) * 2014-09-03 2016-04-06 上海汽车集团股份有限公司 Dual-clutch transmission and hydraulic control system thereof
CN105626844A (en) * 2014-10-28 2016-06-01 上海汽车集团股份有限公司 Hydraulic control system of wet type double-clutch speed changing box
WO2016152533A1 (en) * 2015-03-26 2016-09-29 ジヤトコ株式会社 Vehicular hydraulic control device and hydraulic control method
CN204985686U (en) * 2015-07-27 2016-01-20 安徽江淮汽车股份有限公司 A hydraulic control system for hybrid double clutch automatic transmission
CN204852310U (en) * 2015-08-26 2015-12-09 博格华纳汽车零部件(宁波)有限公司 A double pump system for double clutch derailleur
CN105864424A (en) * 2016-04-07 2016-08-17 宁波上中下自动变速器有限公司 Double-clutch transmission hydraulic control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111425381A (en) * 2020-06-11 2020-07-17 盛瑞传动股份有限公司 Control method and device for electronic oil pump, electronic equipment and storage medium

Similar Documents

Publication Publication Date Title
CN109237013B (en) DCT (discrete cosine transformation) transmission hydraulic control system and method and automobile
KR102142172B1 (en) System and method for feed forward control of a hydraulic control system of a transmission
CN101861482B (en) Controller for variable transmission
CN106233044B (en) Gear arrangement with hydraulic system
CN101809329B (en) Hydraulic pressure supply device for industrial vehicle
CN201992053U (en) Twin-clutch automatic transmission hydraulic system with cooling, lubricating and flow regulating mechanism
CN103321884B (en) The control device of electrodynamic pump
CN102937125A (en) Testing system of hydraulic motor
US8475334B2 (en) Load-sensitive automatic transmission system for agricultural electric vehicle
CN106593978A (en) Hybrid electric vehicle and motor cooling hydraulic system thereof
CN105805284B (en) Gearbox lubricating system and method suitable for hybrid electric vehicle
US10174694B2 (en) Method of optimizing vehicle performance based on countershaft acceleration
CN105626844A (en) Hydraulic control system of wet type double-clutch speed changing box
CN107044540A (en) gear box hydraulic control system
CN108019501A (en) Transmission pressure system, control method and vehicle
CN109958763A (en) A kind of hydraulic control system and speed changer, vehicle of double-clutch automatic gearbox
CN110285210A (en) Hydraulic control system and vehicle
CN110319181A (en) A kind of hydraulic gear-shifting and cooling and lubricating system for hybrid power gearbox
CN106321805A (en) A hydraulic control system of a wet-type double-clutch gearbox, a gearbox, a TCU and an automobile
CN105090479A (en) Vehicle power control method and device
CN107061547A (en) hybrid vehicle and its gear box hydraulic control system
CN102062204B (en) Clutch hydraulic control device of double-clutch automatic transmission
US10337607B2 (en) Selectively controllable filtration system of a transmission and method thereof
CN109990016A (en) Wet dual clutch transmission rushes valve control method
CN206874703U (en) Hybrid vehicle and its gear box hydraulic control system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20180529

RJ01 Rejection of invention patent application after publication