CN102644734B - Hydraulic control device of automatic speed changer - Google Patents

Hydraulic control device of automatic speed changer Download PDF

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Publication number
CN102644734B
CN102644734B CN201210105727.7A CN201210105727A CN102644734B CN 102644734 B CN102644734 B CN 102644734B CN 201210105727 A CN201210105727 A CN 201210105727A CN 102644734 B CN102644734 B CN 102644734B
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CN
China
Prior art keywords
control valve
valve
oil
gearshift
clutch
Prior art date
Application number
CN201210105727.7A
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Chinese (zh)
Other versions
CN102644734A (en
Inventor
刘祥伍
于新涛
张广瀚
宋廷彬
Original Assignee
盛瑞传动股份有限公司
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Priority to CN201210105727.7A priority Critical patent/CN102644734B/en
Publication of CN102644734A publication Critical patent/CN102644734A/en
Application granted granted Critical
Publication of CN102644734B publication Critical patent/CN102644734B/en

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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
    • F16H61/0202Control 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 electric
    • F16H61/0204Control 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 electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
    • F16H61/0206Layout of electro-hydraulic control circuits, e.g. arrangement of valves
    • 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
    • F16H61/18Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
    • 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
    • F16H63/00Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30Constructional features of the final output mechanisms
    • F16H63/34Locking or disabling mechanisms
    • F16H63/36Interlocking devices
    • 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
    • F16H61/18Preventing unintentional or unsafe shift, e.g. preventing manual shift from highest gear to reverse gear
    • F16H2061/185Means, e.g. catches or interlocks, for preventing unintended shift into reverse gear

Abstract

The invention relates to a hydraulic control device of an automatic speed changer. The hydraulic control device of the automatic speed changer comprises an oil pump, a manual control valve, four clutches and one brake, wherein the manual control valve is provided with an oil inlet, a first oil outlet and a second oil outlet; the oil inlet is connected with an outlet of the oil pump; the first oil outlet of the manual control valve is connected with a first oil inlet outlet of a shuttle valve, and the second oil outlet of the manual control valve is connected with the second oil inlet outlet; an oil outlet of the shuttle valve controls a second clutch by virtue of a first shift control valve; the first oil inlet outlet of the shuttle valve controls a first clutch by virtue of a second shift control valve and controls a third clutch by virtue of a third shift control valve; and the outlet of the oil pump controls the brake by virtue of a fourth shift control valve and controls a fourth clutch by virtue of a fifth shift control valve. By adopting the hydraulic control device of the automatic speed changer disclosed by the invention, mechanical interlocking of a reverse gear and a forward gear of a vehicle is realized, the vehicle can not travel in the forward gear when the vehicle travels in the reverse gear R, and reliability and safety are improved.

Description

A kind of hydraulic control device of automatic transmission

Technical field

The present invention relates to a kind of automatic transmission, specifically, relate to a kind of hydraulic control device of automatic transmission, belong to field of mechanical technique.

Background technique

Along with the development of automatic transmission technology, the gear number that can realize due to traditional Three Degree Of Freedom automatic transmission is lower, just progressively replaced by four-degree-of-freedom many gears automatic transmission, four-degree-of-freedom many gears automatic transmission can realize the above automatic speed changing of six gears.

Realizing in process of the present invention, inventor finds at least there is following problem in prior art, although the gear number that four-degree-of-freedom many gears automatic transmission can realize is higher, but four-degree-of-freedom many gears automatic transmission is when realizing a gear, three executive components are often needed to combine the switching that could realize gear, and mutual cooperation to be had between each executive component, although the number of executive component can be reduced like this, but be the increase in the complexity of gearshift logic, cause simultaneously and realize mechanical interlocked difficulty.At present, four-degree-of-freedom speed changer can only rely on automatical control system to realize interlocking, but in automatical control system, if the control signal controlling forward gear breaks down with the control signal controlling to reverse gear, the reliability of automatic transmission and Security will be caused obviously to decline, market also there is not the mechanical interlocked four-degree-of-freedom speed changer that can realize forward gear He reverse gear, reliability and Security lower.

Summary of the invention

The technical problem to be solved in the present invention is for above deficiency, a kind of hydraulic control device of automatic transmission is provided, overcome the defect that in prior art, forward gear can only rely on automatical control system to realize with the interlocking of reversing gear, hydraulic control device described in employing, not only can realize automatic transmission to reverse gear and the electric controlled interlocking of forward gear, also achieve simultaneously and reverse gear and forward gear mechanical interlocked, improve reliability and Security.

For solving above technical problem, the present invention by the following technical solutions: a kind of hydraulic control device of automatic transmission, comprises oil pump, hand control valve, first clutch, second clutch, the 3rd clutch, four clutches and break, it is characterized in that:

Described hand control valve is provided with filler opening, the first oil outlet and the second oil outlet;

Filler opening connects oily delivery side of pump;

Shuttle valve is connected with between first oil outlet of hand control valve and the second oil outlet;

Shuttle valve is provided with the first filler opening, the second filler opening and oil outlet, and the first oil outlet of hand control valve connects the first filler opening of shuttle valve, and the second oil outlet of hand control valve connects the second filler opening of shuttle valve;

The oil outlet of shuttle valve controls second clutch through the first gearshift control valve;

First filler opening of shuttle valve controls first clutch through the second gearshift control valve and controls the 3rd clutch through the 3rd gearshift control valve;

Oil delivery side of pump through the 4th gearshift control valve control brake and through the 5th gearshift control valve control four clutches.

A kind of optimized project, control termination first solenoid valve of described first gearshift control valve.

Another kind of optimized project, control termination second solenoid valve of described second gearshift control valve.

Another optimized project, control termination the 3rd solenoid valve of described 3rd gearshift control valve.

Further optimized project, control termination the 4th solenoid valve of described 4th gearshift control valve.

Further optimized project, control termination the 5th solenoid valve of described 5th gearshift control valve.

Further optimized project, the oil outlet of described shuttle valve connects the oil inlet end of the first gearshift control valve, the fuel-displaced termination second clutch of the first gearshift control valve.

A concrete optimized project, the first filler opening of described shuttle valve connects the oil inlet end of the second gearshift control valve and the 3rd gearshift control valve, and the oil outlet end of the second gearshift control valve connects first clutch, and the oil outlet end of the 3rd gearshift control valve connects the 3rd clutch.

Another kind of concrete optimized project, described oily delivery side of pump connects the oil inlet end of the 4th gearshift control valve, the 5th gearshift control valve, the oil outlet end connecting brake of the 4th gearshift control valve, and the oil outlet end of the 5th gearshift control valve connects four clutches.

A kind of optimized project, when described hand control valve is in and reverses gear R position, second oil outlet of the outlet hand control valve of oil pump, the second oil outlet of hand control valve is communicated with the second filler opening of shuttle valve, the first filler opening of shuttle valve, the first oil outlet cut-off of hand control valve.

After the present invention adopts above technological scheme, compared with prior art, have the following advantages: when hand control valve is in and reverses gear R position, second oil outlet of the outlet hand control valve of oil pump, second oil outlet of hand control valve is communicated with the second filler opening of shuttle valve, all the time there is oil pressure in the second filler opening of shuttle valve, first filler opening of shuttle valve, first oil outlet cut-off of hand control valve, second gearshift control valve, 3rd gearshift control valve does not have fluid to flow through all the time, even if the second solenoid valve, 3rd solenoid valves, second gearshift control valve, the oil outlet of the 3rd gearshift control valve also can not build oil pressure all the time, first clutch and the 3rd clutch always can not be in conjunction with, therefore, achieve when vehicle reverses gear and forward gear mechanical interlocked, vehicle is when the R gear that reverses gear travels, forward gear can not be entered travel, improve reliability and Security.

Below in conjunction with drawings and Examples, the present invention is described in detail.

Accompanying drawing explanation

Accompanying drawing 1 is the structure principle chart of hydraulic control device in the embodiment of the present invention;

Accompanying drawing 2 is the gearshift logic diagram of hydraulic control device gear in the embodiment of the present invention;

In figure,

1-oil pump, 2-first working connection, 3-first oil circuit, 4-second oil circuit, 5-shuttle valve, 6-the 3rd oil circuit, 7-manually operated valve, 8-first shift valve, 9-second shift valve, 10-the 3rd shift valve, 11-the 4th shift valve, 12-the 5th shift valve, 13-second working connection, 14 the 5th solenoid valves, 15-the 4th solenoid valve, 16-the 3rd solenoid valve, 17-second solenoid valve, 18-first solenoid valve, 19-the 4th oil circuit, 20-the 5th oil circuit, 21-the 6th oil circuit, 22-the 7th oil circuit, 23-the 8th oil circuit, 24-the 9th oil circuit, C1-first clutch, C2-second clutch, C3-the 3rd clutch, C4-four clutches, B1-break.

Embodiment

Embodiment, as shown in Figure 1, a kind of hydraulic control device of automatic transmission, comprises oil pump 1, hand control valve 7, first clutch C1, second clutch C2, the 3rd clutch C3, four clutches C4 and break B1, outlet first working connection 2 of oil pump 1 and the second working connection 13;

Hand control valve 7 is provided with filler opening, the first oil outlet and the second oil outlet, first working connection 2 connects the filler opening of hand control valve 7, first oil outlet of hand control valve 7 connects the first filler opening of shuttle valve 5 through the first oil circuit 3, the second oil outlet of hand control valve 7 connects the second filler opening of shuttle valve 5 through the second oil circuit 4;

The first gearshift control valve 8 is provided with between the oil outlet of shuttle valve 5 and second clutch C2, the oil outlet of shuttle valve 5 connects the oil inlet end of the first gearshift control valve 8 through the 3rd oil circuit 6, the oil outlet end of the first gearshift control valve 8 meets second clutch C2 through the 4th oil circuit 19, control termination first solenoid valve 18 of the first gearshift control valve 8;

The second gearshift control valve 9 is provided with between first filler opening of shuttle valve 5 and first clutch C1, first filler opening of shuttle valve 5 connects the oil inlet end of the second gearshift control valve 9 through the 9th oil circuit 24, the oil outlet end of the second gearshift control valve 9 connects first clutch C1 through the 5th oil circuit 20, and the control end of the second gearshift control valve 9 connects the second solenoid valve 17;

Be provided with the 3rd between first filler opening of shuttle valve 5 and the 3rd clutch C3 to shift gears control valve 10, first filler opening of shuttle valve 5 connects the oil inlet end of the 3rd gearshift control valve 10 through the 9th oil circuit 24, the oil outlet end of the 3rd gearshift control valve 10 connects the 3rd clutch C3 through the 6th oil circuit 21, and the control end of the 3rd gearshift control valve 10 connects the 3rd solenoid valve 16;

Be provided with the 4th between second working connection 13 and break B1 to shift gears control valve 11, second working connection 13 connects the oil inlet end of the 4th gearshift control valve 11, the oil outlet end of the 4th gearshift control valve 11 is through the 7th oil circuit 22 connecting brake B1, and the control end of the 4th gearshift control valve 11 connects the 4th solenoid valve 15;

Be provided with the 5th between second working connection 13 and four clutches C4 to shift gears control valve 12, second working connection 13 connects the oil inlet end of the 5th gearshift control valve 12, the oil outlet end of the 5th gearshift control valve 12 connects four clutches C4 through the 8th oil circuit 23, and the control end of the 5th gearshift control valve 12 connects the 5th solenoid valve 14;

First gearshift control valve 8, second gearshift control valve 9, the 3rd gearshift control valve 10, the 4th gearshift control valve 11 are connected fuel tank 25 with the drain tap of the 5th gearshift control valve 12;

4th gearshift control valve 11 is directly connected the second working connection 13 with the 5th gearshift control valve 12, that is, as long as vehicle one starts, just have oil pressure and supply the 4th gearshift control valve 11 and the 5th gearshift control valve 12 always, and supply the first gearshift control valve 8, the oil pressure of the second gearshift control valve 9 and the 3rd gearshift control valve 10, only has manually control valve 7, just arrive by the first oil circuit 3 or the second oil circuit 4, therefore break B1 and four clutches C4 can control the 4th gearshift control valve 11 and the 5th gearshift control valve 12 and combining by the 4th solenoid valve 15 and the 5th gearshift control valve 12 at any time, and first clutch C1, second clutch C2, 3rd clutch C3, manually can only connect the first working connection 2 and other gearshift control valve by control valve 7, realize combining.

As shown in Figure 2, hand control valve 7 comprises four positions: parking shifting-position P, reversing gear R, empty wagons gear N and advance gear D, shadow representation bonding state in figure, do not have shadow representation separated state, the formation of the R gear that reverses gear goes to realize by combining shift gears original paper break B1, second clutch C2 and four clutches C4.

Known by accompanying drawing 2 logic diagram of shifting gears, when forward gear, first clutch C1 at least forms advance gear in conjunction with an ability with the 3rd clutch C3, when hand control valve 7 be in reverse gear R position time, first working connection 2 communicates with the second oil circuit 4, main oil pressure is after shuttle valve 5, inner for shuttle valve 5 steel ball is pressed to the first filler opening of shuttle valve 5, second oil circuit 4 can only be communicated with the 3rd oil circuit 6 with the oil outlet through shuttle valve 5, and the 3rd oil circuit 6 is connected to the first shift valve 8, first shift valve 8 is communicated with second clutch C2 again, when hand control valve 7 is in R gear, be energized to the first solenoid valve 18, the first gearshift control valve 8 is made to be in upper, now the 4th oil circuit 19 is communicated with the 3rd oil circuit 6, second clutch C2 can be combined at any time.Because when R keeps off, the second filler opening of shuttle valve 5 exists oil pressure all the time, first oil circuit 3 is obstructed simultaneously, cause the 9th oil circuit 24 all the time cannot oil-feed, therefore the second gearshift control valve 9, the 3rd gearshift control valve 10 do not have fluid to flow through all the time, even if the second solenoid valve 17, the 3rd solenoid valve 16 are energized, 6th oil circuit 21 and the 5th oil circuit 20 also can not build oil pressure all the time, and first clutch C1 and the 3rd clutch C3 always can not be in conjunction with.Therefore achieve when vehicle travels at the R gear that reverses gear, in any case the situation of forward gear traveling also can not be entered.

Those skilled in the art will recognize that; above-mentioned embodiment is exemplary; to enable those skilled in the art better understand content of the present invention; should not be understood as limiting the scope of the invention; because electric controlled interlocking is the common practise of those skilled in the art; technical solution of the present invention part has only been described in detail mechanical interlocked realization, as long as the improvement done according to technical solution of the present invention, all falls into protection scope of the present invention.

Claims (10)

1. a hydraulic control device of automatic transmission, comprise oil pump (1), hand control valve (7), first clutch (C1), second clutch (C2), the 3rd clutch (C3), four clutches (C4) and break (B1), hand control valve (7) is provided with filler opening, the first oil outlet and the second oil outlet, filler opening connects the outlet of oil pump (1), it is characterized in that:
Shuttle valve (5) is connected with between first oil outlet of described hand control valve (7) and the second oil outlet;
Shuttle valve (5) is provided with the first filler opening, the second filler opening and oil outlet, and the first oil outlet of hand control valve (7) connects the first filler opening of shuttle valve (5), and the second oil outlet of hand control valve (7) connects the second filler opening of shuttle valve (5);
The oil outlet of shuttle valve (5) controls second clutch (C2) through the first gearshift control valve (8);
First filler opening of shuttle valve (5) controls first clutch (C1) through the second gearshift control valve (9) and controls the 3rd clutch (C3) through the 3rd gearshift control valve (10);
The outlet of oil pump (1) is through the 4th gearshift control valve (11) control brake (B1) and control four clutches (C4) through the 5th gearshift control valve (12).
2. a kind of hydraulic control device of automatic transmission as claimed in claim 1, is characterized in that: control termination first solenoid valve (18) of described first gearshift control valve (8).
3. a kind of hydraulic control device of automatic transmission as claimed in claim 1, is characterized in that: control termination second solenoid valve (17) of described second gearshift control valve (9).
4. a kind of hydraulic control device of automatic transmission as claimed in claim 1, is characterized in that: the control termination the 3rd solenoid valve (16) of described 3rd gearshift control valve (10).
5. a kind of hydraulic control device of automatic transmission as claimed in claim 1, is characterized in that: the control termination the 4th solenoid valve (15) of described 4th gearshift control valve (11).
6. a kind of hydraulic control device of automatic transmission as claimed in claim 1, is characterized in that: the control termination the 5th solenoid valve (14) of described 5th gearshift control valve (12).
7. a kind of hydraulic control device of automatic transmission as claimed in claim 1, is characterized in that: the oil outlet of described shuttle valve (5) connects the oil inlet end of the first gearshift control valve (8), the fuel-displaced termination second clutch (C2) of the first gearshift control valve (8).
8. a kind of hydraulic control device of automatic transmission as claimed in claim 1, it is characterized in that: the first filler opening of described shuttle valve (5) connects the oil inlet end of the second gearshift control valve (9) and the 3rd gearshift control valve (10), the oil outlet end of the second gearshift control valve (9) connects first clutch (C1), and the oil outlet end of the 3rd gearshift control valve (10) connects the 3rd clutch (C3).
9. a kind of hydraulic control device of automatic transmission as claimed in claim 1, it is characterized in that: the outlet of described oil pump (1) connects the oil inlet end of the 4th gearshift control valve (11), the 5th gearshift control valve (12), the oil outlet end connecting brake (B1) of the 4th gearshift control valve (11), the oil outlet end of the 5th gearshift control valve (12) connects four clutches (C4).
10. as a kind of hydraulic control device of automatic transmission of claim 1-9 as described in one of them, it is characterized in that: when described hand control valve (7) is in and reverses gear R position, second oil outlet of the outlet hand control valve (7) of oil pump (1), second oil outlet of hand control valve (7) is communicated with the second filler opening of shuttle valve (5), the first filler opening of shuttle valve (5), the first oil outlet cut-off of hand control valve (7).
CN201210105727.7A 2012-04-12 2012-04-12 Hydraulic control device of automatic speed changer CN102644734B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210105727.7A CN102644734B (en) 2012-04-12 2012-04-12 Hydraulic control device of automatic speed changer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210105727.7A CN102644734B (en) 2012-04-12 2012-04-12 Hydraulic control device of automatic speed changer
PCT/CN2012/074057 WO2013152511A1 (en) 2012-04-12 2012-04-15 Hydraulic control device of automatic speed changer

Publications (2)

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CN102644734A CN102644734A (en) 2012-08-22
CN102644734B true CN102644734B (en) 2014-12-24

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WO (1) WO2013152511A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103671898B (en) * 2013-12-25 2017-06-06 盛瑞传动股份有限公司 A kind of shift control method of hydraulic automatic speed variator
CN104089000A (en) * 2014-07-01 2014-10-08 盛瑞传动股份有限公司 Slip difference equivalent method and system for hydraulic automatic transmission
CN104089002A (en) * 2014-07-01 2014-10-08 盛瑞传动股份有限公司 Shifting cooperative control method and related device
CN104405865A (en) * 2014-11-18 2015-03-11 盛瑞传动股份有限公司 Automatic transmission gearbox and gear shifting oil pressure regulating system thereof
CN106838292B (en) * 2016-12-26 2018-06-05 湖北航天技术研究院特种车辆技术中心 A kind of self shifter hydraulic control system
CN109404528B (en) * 2019-01-24 2019-05-10 盛瑞传动股份有限公司 Gear keeps hydraulic control system and gearbox

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19535093A1 (en) * 1994-11-18 1996-05-23 Michael Meyerle Infinitely variable gear esp. with hydrostatic torque split e.g. for motor vehicles
DE19746090A1 (en) * 1997-09-24 1999-03-25 Linde Ag Hydrostatic drive system for vehicle e.g. forklift
CN1760571A (en) * 2004-10-14 2006-04-19 丰田自动车株式会社 Hydraulic control apparatus for automatic transmission
CN101788051A (en) * 2010-03-22 2010-07-28 盛瑞传动股份有限公司 Hydraulic control system used in failure of electric control system of automatic speed changer
CN202579990U (en) * 2012-04-12 2012-12-05 盛瑞传动股份有限公司 Hydraulic control device of automatic speed changer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19535093A1 (en) * 1994-11-18 1996-05-23 Michael Meyerle Infinitely variable gear esp. with hydrostatic torque split e.g. for motor vehicles
DE19746090A1 (en) * 1997-09-24 1999-03-25 Linde Ag Hydrostatic drive system for vehicle e.g. forklift
CN1760571A (en) * 2004-10-14 2006-04-19 丰田自动车株式会社 Hydraulic control apparatus for automatic transmission
CN101788051A (en) * 2010-03-22 2010-07-28 盛瑞传动股份有限公司 Hydraulic control system used in failure of electric control system of automatic speed changer
CN202579990U (en) * 2012-04-12 2012-12-05 盛瑞传动股份有限公司 Hydraulic control device of automatic speed changer

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CN102644734A (en) 2012-08-22
WO2013152511A1 (en) 2013-10-17

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