CN105864424A - Double-clutch transmission hydraulic control system - Google Patents

Double-clutch transmission hydraulic control system Download PDF

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Publication number
CN105864424A
CN105864424A CN201610218071.8A CN201610218071A CN105864424A CN 105864424 A CN105864424 A CN 105864424A CN 201610218071 A CN201610218071 A CN 201610218071A CN 105864424 A CN105864424 A CN 105864424A
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CN
China
Prior art keywords
clutch
oil
pressure oil
high
number gear
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CN201610218071.8A
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Chinese (zh)
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CN105864424B (en
Inventor
邱志凌
陈勇
王瑞平
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宁波上中下自动变速器有限公司
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Publication of CN105864424A publication Critical patent/CN105864424A/en
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    • 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
    • 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
    • F16H61/26Generation or transmission of movements for final actuating mechanisms
    • F16H61/28Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/30Hydraulic or pneumatic motors or related fluid control means therefor

Abstract

A double-clutch transmission hydraulic control system mainly comprises a mechanical oil pump driven by an engine, a hydraulic source device of an electric oil pump driven by a motor, a clutch actuating high-pressure oil circuit, a shifting fork gear-shifting actuating high-pressure oil circuit and a lubrication cooling low-pressure oil circuit. The clutch actuating high-pressure oil circuit, the shifting fork gear-shifting actuating high-pressure oil circuit and the lubrication cooling low-pressure oil circuit are connected with the hydraulic source device. During normal operation, the mechanical oil pump supplies oil to a lubrication cooling low-pressure system, the electric oil pump supplies oil to the clutch actuating high-pressure oil circuit and the shifting fork gear-shifting actuating high-pressure oil circuit. When the engine is at a low speed or a lower oil temperature, the mechanical oil pump and the electric oil pump can supply oil to a shifting fork gear-shifting actuating high-pressure system simultaneously, so that the drive current of the electric oil pump is reduced, and the response speed of the hydraulic system is increased. However, when the engine is at a high oil temperature, the electric oil pump can also supplies oil to the lubrication cooling system to assist the mechanical oil pump in cooling double clutches. An electromagnet is used for positioning of a shifting fork gear-shifting oil cylinder, so that the design of the hydraulic system and valve bodies is simplified.

Description

Dual-clutch transmission hydraulic control system

Technical field

The present invention relates to automotive transmission field, especially a kind of dual-clutch transmission hydraulic control system.

Background technology

Double-clutch speed changer is in addition to the comfortableness of the motility and automatic transmission that have manual transmission, moreover it is possible to provide unremitting power to export;This change speed gear box has two clutches, and one controls strange gear number, and one controls even number gear;The when of using one to keep off, another gear has carried out gearshift preparation;During gearshift, power output is free of discontinuities, do not have time delay and shift time to be greatly shortened;The structure of double clutch gearboxes is similar to manual transmission very much, and double clutch gearboxes also include the power input shaft with gear and idle pulley, and the jackshaft with different shift gears, and change gear by selector fork;The utility model of Chinese Patent Application No. CN201320767136.6 discloses a kind of hydraulic control system of dual-clutch automatic transmission and corresponding variator and automobile, this hydraulic system includes working connection, odd number gear clutch, even number gear clutch, odd number gear hydraulic control system, even number gear hydraulic control system, and odd number keeps off and is respectively equipped with the first relief valve, the second relief valve on the oil circuit of clutch, even number gear clutch;Odd number gear hydraulic control system, even number gear hydraulic control system include the corresponding control valve connected with corresponding relief valve by corresponding seed oil road respectively.The mechanical oil pump fuel feeding that traditional hydraulic control system of dual-clutch automatic transmission is directly driven by an electromotor, in order to ensure that hydraulic system has enough pressure and flow, when low engine speeds (such as idling), variator can be put into gear startup, mechanical pump needs have the biggest discharge capacity, owing to flow and the energy consumption of mechanical pump are proportional to engine speed, when normal engine speed (3 times of idling), most of pump discharge of mechanical pump, by overflow, wastes the engine output of about 3%;In order to reduce engine output loss, some dual-clutch transmissions newly developed use pump hydraulic system;This pump hydraulic system is by parallel to whole hydraulic system fuel feeding for the mechanical oil pump directly driven with electromotor by motor-driven electronic oil pump set up;There is mechanical oil pump and the most under high pressure work in this pump hydraulic system, although its discharge capacity can be the half of tradition solely pumping system, but still has the engine output of about about 1.5% to be wasted during high speed, the deficiency that the overall efficiency of variator is relatively low;Therefore, design one reduces engine output waste, the dual-clutch transmission hydraulic control system that the overall efficiency of variator is higher, becomes problem demanding prompt solution.

Summary of the invention

The invention aims to overcome current pump hydraulic system to there is mechanical oil pump the most under high pressure work, although its discharge capacity can be the half of tradition solely pumping system, but still there is the engine output of about about 1.5% to be wasted during high speed, the deficiency that the overall efficiency of variator is relatively low, one is provided to reduce engine output waste, the dual-clutch transmission hydraulic control system that the overall efficiency of variator is higher.

The concrete technical scheme of the present invention is:

A kind of dual-clutch transmission hydraulic control system, including: it is provided with actuation-cylinder and cooling chamber is connected in parallel to the clutch that variator odd number keeps off, it is provided with actuation-cylinder and cooling chamber is connected in parallel to the clutch that variator even number keeps off, several odd numbers gear selector fork oil cylinder, several even numbers gear selector fork oil cylinder;Described dual-clutch transmission hydraulic control system also includes: be provided with mechanical oil pump driven by the engine and by the hydraulic power source device of motor-driven electric oil pump, clutch actuation high-pressure oil passage, shifting-fork gear-shifting actuating high pressure oil circuit, lubrication low pressure oil way;Clutch actuation high-pressure oil passage, shifting-fork gear-shifting actuating high pressure oil circuit and lubrication low pressure oil way are connected with hydraulic power source device respectively.When this dual-clutch transmission hydraulic control system uses, mechanical oil pump mainly gives lubrication low pressure oil way fuel feeding, and electric oil pump mainly gives clutch actuation high-pressure oil passage and shifting-fork gear-shifting actuating high pressure oil circuit fuel feeding;Owing to mechanical oil pump output pressure is low, institute's wasted work rate is less, thus avoids the energy loss that traditional dual-clutch transmission hydraulic system big pump high pressure causes;Electric oil pump only starts the several seconds when gear shift, and energy consumption is the least;With existing by compared with the hydraulic control system of dual-clutch automatic transmission of an engine-driven oil pump feed, the hydraulic control system of the present invention decreases engine output waste, and variator overall efficiency can improve 2%;This dual-clutch transmission hydraulic control system reduces engine output waste, and the overall efficiency of variator is higher.

As preferably, described hydraulic power source device includes: the electromagnetic valve of hydraulic power source device, several check valves, hydraulic damping hole, the pressure transducer of hydraulic power source device, the oil screen of hydraulic power source device, oil sump;Machinery oil delivery side of pump is connected with an import of the electromagnetic valve of hydraulic power source device;The outlet of electric oil pump is connected with another import of electromagnetic valve and the import of first check valve of hydraulic power source device respectively;The import of second check valve is connected with an outlet of the electromagnetic valve of hydraulic power source device;The import of the 3rd check valve is connected with another outlet of electromagnetic valve and the one end in hydraulic damping hole of hydraulic power source device respectively;The outlet of the other end in hydraulic damping hole and second check valve connects;The outlet of first check valve is connected with the outlet of the 3rd check valve and the pressure transducer of hydraulic power source device respectively.Hydraulic power source device is by the electromagnetic valve of a hydraulic power source device and hydraulic damping hole, if desired (as low oil temperature or electric oil pump lost efficacy), mechanical oil pump can supply hydraulic oil to clutch actuation high-pressure oil passage and shifting-fork gear-shifting actuating high pressure oil circuit, thus reduce the driving electric current of electric oil pump, improve variator low temperature gearshift performance, help gear shift;And when high oil temperature, the slow-speed of revolution, electric oil pump also can give lubrication oil circuit fuel feeding, mechanical oil pump is helped to lower the temperature to cooling chamber and the even number gear clutch of odd number gear clutch;The function of this partable reduces two pump deliveries, further reduces hydraulic system energy consumption.

As preferably, described clutch actuation high-pressure oil passage includes: the oil screen of clutch actuation high-pressure oil passage, the proportional solenoid of clutch actuation high-pressure oil passage, the pressure transducer of two clutch actuation high-pressure oil passages and two the clutch actuation oil cylinders that import is connected with the outlet of first check valve;Two imports of the proportional solenoid of clutch actuation high-pressure oil passage outlet with the oil screen of clutch actuation high-pressure oil passage respectively is connected;The actuation-cylinder of odd number gear clutch and the actuation-cylinder of even number gear clutch are respectively connected with the outlet of the proportional solenoid of a clutch actuation high-pressure oil passage;Odd number gear clutch and the clutch of even number gear clutch can be controlled easily by the proportional solenoid of clutch actuation high-pressure oil passage.

As preferably, described shifting-fork gear-shifting actuating high pressure oil circuit includes: an import is connected to the two-position four-way solenoid directional control valve of hydraulic power source, several odd numbers gear selector fork oil cylinder, several even numbers gear selector fork oil cylinder and a counterbalance valve;The two ends of odd number gear selector fork oil cylinder and the two ends of even number gear selector fork oil cylinder are connected with electromagnetic switch valve outlet port respectively.Activate branch road by two shifting-fork gear-shiftings and can conveniently control odd number gear selector fork and the transposition of even number gear gearshift group.

As preferably, described odd number gear selector fork oil cylinder and even number gear selector fork oil cylinder are positioned by the electromagnetic positioners being provided with electromagnetic location pin.Make not shift when odd number gear selector fork oil cylinder and even number gear selector fork cylinder efficient

As preferably, described lubrication low pressure oil way includes: the oil cooler that import is connected with the outlet of second check valve, the low-pressure safety valve being connected with the outlet of second check valve;The cooling chamber of odd number gear clutch and the cooling chamber of even number gear clutch are connected with the outlet of oil cooler respectively.Odd number gear clutch and even number gear clutch can effectively be cooled down by lubrication low pressure oil way.

As preferably, described hydraulic power source device also includes: the high-pressure safety valve being connected with the outlet of first check valve.Safety can be improved.

As preferably, described hydraulic power source device also includes: the hydraulic energy storage device being connected with the outlet of first check valve.The stability of high pressure can be improved.

A kind of dual-clutch transmission hydraulic control system, is characterized in that, including: hydraulic power source, clutch actuation hydraulic control system, there is solenoid directional control valve, several odd numbers gear selector fork oil cylinder and several even numbers gear selector fork oil cylinder.This dual-clutch transmission hydraulic control system reduces engine output waste, and the overall efficiency of variator is higher.

As preferably, described odd number gear selector fork oil cylinder and even number gear selector fork oil cylinder are by electromagnetic location finger setting;The two ends of odd number gear selector fork oil cylinder and the two ends of even number gear selector fork oil cylinder connect two outlets of solenoid directional control valve respectively.Activate branch road by two shifting-fork gear-shiftings and can conveniently control odd number gear selector fork and the transposition of even number gear gearshift group;Odd number gear selector fork oil cylinder and even number gear selector fork oil cylinder are positioned by the electromagnetic positioners being provided with electromagnetic location pin.Make not shift when odd number gear selector fork oil cylinder and even number gear selector fork cylinder efficient

Compared with prior art, the invention has the beneficial effects as follows: this dual-clutch transmission hydraulic control system reduces engine output waste, and the overall efficiency of variator is higher.Hydraulic power source device is by the electromagnetic valve of a hydraulic power source device and hydraulic damping hole, if desired (as low oil temperature or electric oil pump lost efficacy), mechanical oil pump can supply hydraulic oil to clutch actuation high-pressure oil passage and shifting-fork gear-shifting actuating high pressure oil circuit, thus reduce the driving electric current of electric oil pump, improve variator low temperature gearshift performance, help gear shift;And when high oil temperature, the slow-speed of revolution, electric oil pump also can give lubrication oil circuit fuel feeding, mechanical oil pump is helped to lower the temperature to cooling chamber and the even number gear clutch of odd number gear clutch;The function of this partable reduces two pump deliveries, further reduces hydraulic system energy consumption.Actuation-cylinder and the clutch of even number gear clutch of odd number gear clutch can be conveniently controlled by the proportional solenoid of clutch actuation high-pressure oil passage.Activate branch road by two shifting-fork gear-shiftings and can conveniently control odd number gear selector fork and the transposition of even number gear gearshift group.Odd number gear selector fork oil cylinder and even number gear selector fork oil cylinder are positioned by the electromagnetic positioners being provided with electromagnetic location pin.Make not shift when odd number gear selector fork oil cylinder and even number gear selector fork cylinder efficient.Odd number gear clutch and even number gear clutch can effectively be cooled down by lubrication low pressure oil way.High-pressure safety valve can improve safety.Hydraulic energy storage device can improve the stability of high pressure.

Accompanying drawing explanation

Fig. 1 is a kind of hydraulic structure schematic diagram of the present invention.

nullIn figure: clutch actuation oil cylinder 1、Cooling chamber 2、Odd number gear clutch 3、Even number gear clutch 4、Odd number gear selector fork oil cylinder 5、Even number gear selector fork oil cylinder 6、Electromotor 7、Mechanical oil pump 8、Motor 9、Electric oil pump 10、The electromagnetic valve 11 of hydraulic power source device、Hydraulic damping hole 12、The pressure transducer 13 of hydraulic power source device、The oil screen 14 of hydraulic power source device、Oil sump 15、First check valve 16、High-pressure safety valve 17、Hydraulic energy storage device 18、Second check valve 19、3rd check valve 20、The oil screen 21 of clutch actuation high-pressure oil passage、First proportional solenoid 22、Second proportional solenoid 24、The pressure transducer 25 of clutch actuation high-pressure oil passage、Counterbalance valve 26、Two-position four-way solenoid directional control valve 30、Oil cooler 31、Low-pressure safety valve 32、Electromagnetic location pin 42、Electromagnetic positioners 41.

Detailed description of the invention

Shown in below in conjunction with the accompanying drawings, the present invention is described further

As shown in Figure 1: a kind of dual-clutch transmission hydraulic control system, including: it is provided with the odd number gear clutch 3 of actuation-cylinder 1 and cooling chamber 2, it is provided with the even number gear clutch 4 of actuation-cylinder and cooling chamber, two odd number gear selector fork oil cylinders 5, two even numbers gear selector fork oil cylinders 6, are provided with the mechanical oil pump 8 driven by electromotor 7 and the hydraulic power source device of electric oil pump 10 driven by motor 9, clutch actuation high-pressure oil passage, shifting-fork gear-shifting actuating high pressure oil circuit, lubrication low pressure oil way;Clutch actuation high-pressure oil passage, shifting-fork gear-shifting actuating high pressure oil circuit and lubrication low pressure oil way are connected with hydraulic power source device respectively.

In the present embodiment:

Described hydraulic power source device includes: the electromagnetic valve 11 of hydraulic power source device, three check valves, hydraulic damping hole 12, the pressure transducer 13 of hydraulic power source device, the oil screen 14 of hydraulic power source device, oil sump 15, the high-pressure safety valve 17 being connected with the outlet of first check valve 16, the hydraulic energy storage device 18 being connected with the outlet of first check valve 16;Machinery oil delivery side of pump is connected with an import of the electromagnetic valve of hydraulic power source device;The outlet of electric oil pump import with first check valve 16 and second check valve 19 respectively is connected;The outlet of check valve 19 is connected with another import of the electromagnetic valve of hydraulic power source device;The import of second check valve 19 is connected with an outlet of the electromagnetic valve of hydraulic power source device;The import of the 3rd check valve 20 is connected with another outlet of electromagnetic valve and the one end in hydraulic damping hole of hydraulic power source device respectively;The other end in hydraulic damping hole is connected with lubrication low pressure oil way import;The outlet of first check valve is connected with the outlet of the 3rd check valve and the pressure transducer 15 of hydraulic power source device respectively.

Described clutch actuation high-pressure oil passage includes: the oil screen 21 of the clutch actuation high-pressure oil passage that import is connected with the outlet of first check valve, the first proportional solenoid 22 that import with odd number gear clutch 3 is connected, the second proportional solenoid 24 that import with even number gear clutch is connected, the pressure transducer 25 of two clutch actuation high-pressure oil passages;The oil screen 21 of clutch actuation high-pressure oil passage can be connected on two imports of the first proportional solenoid 22 and the second proportional solenoid 24 to prevent foul from entering proportional solenoid.

Described shifting-fork gear-shifting actuating high pressure oil circuit includes: an import is connected to the two-position four-way solenoid directional control valve 30 of hydraulic power source, several odd numbers gear selector fork oil cylinder 5, several even numbers gear selector fork oil cylinder 6 and a counterbalance valve 26.The two ends of shifting-fork gear-shifting oil cylinder are connected with solenoid directional control valve 30 outlet respectively;Odd number gear selector fork oil cylinder 5 and even number gear selector fork oil cylinder 6 are positioned by the electromagnetic positioners 41 being provided with electromagnetic location pin 42;Counterbalance valve 26 is connected to magnetic reversal valve 30 oil return outlet.

Described lubrication low pressure oil way includes: the oil cooler 31 that import is connected with electromagnetic valve 11 outlet and damping hole 12 port of export of hydraulic power source device, low-pressure safety valve 32;The cooling chamber of odd number gear clutch and the cooling chamber of even number gear clutch are connected with the outlet of oil cooler respectively.

When this dual-clutch transmission hydraulic control system uses, mechanical oil pump mainly gives lubrication low pressure oil way fuel feeding, and electric oil pump mainly gives clutch actuation high-pressure oil passage and shifting-fork gear-shifting actuating high pressure oil circuit fuel feeding;Owing to mechanical oil pump output pressure is low, institute's wasted work rate is less, thus avoids the energy loss that traditional dual-clutch transmission hydraulic system big pump high pressure causes;Electric oil pump only starts the several seconds when gear shift, and energy consumption is the least;With the mechanical oil pump fuel feeding that directly driven by an electromotor of hydraulic control system of dual-clutch automatic transmission compared with, decrease engine output waste, variator overall efficiency can improve 2%;Electromagnetic valve and hydraulic damping hole by a hydraulic power source device, if desired (as low oil temperature or electric oil pump lost efficacy), mechanical oil pump can supply hydraulic oil to clutch actuation high-pressure oil passage and shifting-fork gear-shifting actuating high pressure oil circuit, thus reduce the driving electric current of electric oil pump, improve variator low temperature gearshift performance, help gear shift;And when high oil temperature, the slow-speed of revolution, electric oil pump also can give lubrication oil circuit fuel feeding, mechanical oil pump is helped to lower the temperature to cooling chamber and the even number gear clutch of odd number gear clutch;The function of this partable reduces two pump deliveries, decreases hydraulic system energy consumption.

The invention has the beneficial effects as follows: this dual-clutch transmission hydraulic control system reduces engine output waste, and the overall efficiency of variator is higher.Hydraulic power source device is by the electromagnetic valve of a hydraulic power source device and hydraulic damping hole, if desired (as low oil temperature or electric oil pump lost efficacy), mechanical oil pump can supply hydraulic oil to clutch actuation high-pressure oil passage and shifting-fork gear-shifting actuating high pressure oil circuit, thus reduce the driving electric current of electric oil pump, improve variator low temperature gearshift performance, help gear shift;And when high oil temperature, the slow-speed of revolution, electric oil pump also can give lubrication oil circuit fuel feeding, mechanical oil pump is helped to lower the temperature to cooling chamber and the even number gear clutch of odd number gear clutch;The function of this partable reduces two pump deliveries, further reduces hydraulic system energy consumption.Actuation-cylinder and the clutch of even number gear clutch of odd number gear clutch can be conveniently controlled by the proportional solenoid of clutch actuation high-pressure oil passage.Activate branch road by two shifting-fork gear-shiftings and can conveniently control odd number gear selector fork and the transposition of even number gear gearshift group.Odd number gear selector fork oil cylinder and even number gear selector fork oil cylinder are positioned by the electromagnetic positioners being provided with electromagnetic location pin.Make not shift when odd number gear selector fork oil cylinder and even number gear selector fork cylinder efficient.Odd number gear clutch and even number gear clutch can effectively be cooled down by lubrication low pressure oil way.High-pressure safety valve can improve safety.Hydraulic energy storage device can improve the stability of high pressure.

It is apparent to one skilled in the art that the present invention can change into multiple application mode, and such change is not regarded as a departure from the scope of the present invention.All such technical staff to described field obviously revise, and are included within the scope of present claims.

Claims (10)

1. a dual-clutch transmission hydraulic control system, including: it is provided with odd number gear clutch (3) of actuation-cylinder (1) and cooling chamber (2), it is provided with even number gear clutch (4) of actuation-cylinder and cooling chamber, several odd numbers gear selector fork oil cylinder (5), several even numbers gear selector fork oil cylinder (6);It is characterized in that, described dual-clutch transmission hydraulic control system also includes: be provided with the mechanical oil pump (8) driven by electromotor (7) and the hydraulic power source device of electric oil pump (10) driven by motor (9), clutch actuation high-pressure oil passage, shifting-fork gear-shifting actuating high pressure oil circuit, lubrication low pressure oil way;Clutch actuation high-pressure oil passage, shifting-fork gear-shifting actuating high pressure oil circuit and lubrication low pressure oil way are connected with hydraulic power source device respectively.
Dual-clutch transmission hydraulic control system the most according to claim 1, is characterized in that, described hydraulic power source device includes: electromagnetic valve (11), hydraulic damping hole (12) and several check valves;When being not powered on, the outlet of mechanical oil pump (8) is connected to lubrication low pressure oil way by this electromagnetic valve, also through second check valve (19) and damping hole (12), the outlet of electric oil pump (10) is connected to lubrication low pressure oil way simultaneously;When this solenoid valves, the outlet of mechanical oil pump (8) is connected to lubrication low pressure oil way through hydraulic damping hole by electromagnetic valve, the most also through first check valve (20), the outlet of mechanical oil pump (8) is connected to clutch actuation high-pressure oil passage and gearshift actuating high pressure oil circuit.
Dual-clutch transmission hydraulic control system the most according to claim 2, is characterized in that, described hydraulic power source device also includes: the hydraulic energy storage device (18) being connected with the outlet of first check valve (16).
Dual-clutch transmission hydraulic control system the most according to claim 2, is characterized in that, described hydraulic power source device also includes: the high-pressure safety valve (17) being connected with the outlet of first check valve.
5. according to the dual-clutch transmission hydraulic control system described in claim 1 or 2 or 3 or 4, it is characterized in that, described clutch actuation high-pressure oil passage includes: the oil screen (21) of the clutch actuation high-pressure oil passage that import is connected with the outlet of first check valve, the proportional solenoid of clutch actuation high-pressure oil passage, the pressure transducer (25) of two clutch actuation high-pressure oil passages and two clutch actuation oil cylinders;Two imports of the proportional solenoid of clutch actuation high-pressure oil passage outlet with the oil screen of clutch actuation high-pressure oil passage respectively is connected;The actuation-cylinder of odd number gear clutch and the actuation-cylinder of even number gear clutch are respectively connected with the outlet of the proportional solenoid of a clutch actuation high-pressure oil passage;Odd number gear clutch and the clutch of even number gear clutch can be controlled easily by the proportional solenoid of clutch actuation high-pressure oil passage.
6. according to the dual-clutch transmission hydraulic control system described in claim 1 or 2 or 3 or 4, it is characterized in that, described shifting-fork gear-shifting actuating high pressure oil circuit includes: an import is connected to the two-position four-way solenoid directional control valve (30) of hydraulic power source, several odd numbers gear selector fork oil cylinder, several even numbers gear selector fork oil cylinder and a counterbalance valve (26);The two ends of odd number gear selector fork oil cylinder and the two ends of even number gear selector fork oil cylinder are connected with electromagnetic switch valve outlet port respectively.
Dual-clutch transmission hydraulic control system the most according to claim 6, is characterized in that, described odd number gear selector fork oil cylinder and even number gear selector fork oil cylinder are positioned by the electromagnetic positioners (41) being provided with electromagnetic location pin (42).
8. according to the dual-clutch transmission hydraulic control system described in claim 1 or 2 or 3 or 4, it is characterized in that, described lubrication low pressure oil way includes: the oil cooler (31) that import is connected with the outlet of second check valve, the low-pressure safety valve (32) being connected with the outlet of second check valve;The cooling chamber of odd number gear clutch and the cooling chamber of even number gear clutch are connected with the outlet of oil cooler respectively.
9. a dual-clutch transmission hydraulic control system, it is characterized in that, including: hydraulic power source, clutch actuation hydraulic control system, have solenoid directional control valve (30), several odd numbers gear selector fork oil cylinder (5) and several even numbers keep off selector fork oil cylinder (6).
Dual-clutch transmission hydraulic control system the most according to claim 9, is characterized in that, described odd number gear selector fork oil cylinder (5) and even number gear selector fork oil cylinder (6) are positioned by electromagnetic location pin (42);The two ends of the two ends of odd number gear selector fork oil cylinder (5) and even number gear selector fork oil cylinder (6) connect two outlets of solenoid directional control valve (30) respectively.
CN201610218071.8A 2016-04-07 2016-04-07 Dual-clutch transmission hydraulic control system CN105864424B (en)

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CN108087544A (en) * 2016-11-22 2018-05-29 上海汽车集团股份有限公司 Double-clutch speed changer hydraulic control system and control method
CN109210187A (en) * 2018-10-08 2019-01-15 重庆长安汽车股份有限公司 A kind of double-clutch speed changer hydraulic control system, method and automobile
CN109812513A (en) * 2019-01-31 2019-05-28 武汉船用机械有限责任公司 The hydraulic control system of hydraulic clutch

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