CN102494119B - Semi-automatic gear shift operating system for automobile - Google Patents
Semi-automatic gear shift operating system for automobile Download PDFInfo
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- CN102494119B CN102494119B CN201110438266.0A CN201110438266A CN102494119B CN 102494119 B CN102494119 B CN 102494119B CN 201110438266 A CN201110438266 A CN 201110438266A CN 102494119 B CN102494119 B CN 102494119B
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- 239000003921 oil Substances 0.000 claims description 65
- 239000000945 filler Substances 0.000 claims description 32
- 239000012530 fluid Substances 0.000 claims description 17
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 230000007935 neutral effect Effects 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 239000010727 cylinder oil Substances 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000010720 hydraulic oil Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The invention relates to a semi-automatic gear shift operating system for an automobile, comprising a main pump, a branched pump, a clutch pedal, a gear lever, a clutch and a servotronic valve, wherein a valve group is arranged between the main pump and the branched pump, and the gear lever comprises an inner lever and an outer lever. By using the semi-automatic gear shift operating system for the automobile, hydraulic pressure can be acted on a release yoke of the clutch while a driver selects a gear by toggling the gear lever, furthermore, the aims of clutch and transmission are achieved, the action that the driver treads the clutch pedal is omitted, and the labor intensity of the driver is relieved. The valve group has a throttling function so that pressure in an oil path can be released slowly to achieve the effect that the clutch is engaged stably.
Description
Technical field
The present invention relates to a kind of Semi-automatic gear shift operating system for automobile.
Background technique
Present all kinds of hand gear automobile gear shift variable-speed operating control systems (as Fig. 2), comprise clutch pedal 16, master cylinder 18, wheel cylinder 2, speed changer 3, gear lever 5, in the time of shift speed change, need driver to step on clutch pedal, promote total pump piston and then drive wheel cylinder, finally acting on the withdrawal fork 1 of clutch, making clutch separation, driver again operations platoon's pin hangs after required gear and loosens clutch pedal, and clutch is engaged.In this process, fluid in wheel cylinder is directly got back in master cylinder, its flow can not regulate, can only control the speed of unclamping clutch pedal by driver engages clutch smooth and steady, if driver's operation lack of skill, clutch not smooth engagement can cause shrugging one's shoulders of automobile, thereby clutch and whole transmission system are impacted.And for driver, in driving, constantly trample clutch pedal, can give driver particularly the driver of long-duration driving bring very large labor intensity, make driver easily tired.
Summary of the invention
The object of the present invention is to provide a kind of Semi-automatic gear shift operating system for automobile, the effect that can make driver realize manpower in moving with the hand gear lever gearshift to trample clutch pedal, and can make clutch smooth and steady engage.In addition, in Semi-automatic gear shift operating system for automobile thrashing of the present invention or other situation, also can take to trample the mode of clutch pedal in the past, realize normal clutch shifting function.
The present invention realizes by the following technical solutions:
A kind of Semi-automatic gear shift operating system for automobile, comprises master cylinder, wheel cylinder, clutch pedal, speed changer, clutch, gear lever, is provided with the valve group being made up of valve A, valve B, valve C between master cylinder and wheel cylinder; Described valve A comprises valve body, and valve body is provided with filler opening, oil outlet, is provided with one-way valve, adjustable restrictive valve in valve body, and described filler opening is communicated with the oil inlet end of one-way valve and the oil inlet end of adjustable restrictive valve, and oil outlet is communicated with the oil outlet end of adjustable restrictive valve; Described valve B is a piston-type pressure control valve, the oil outlet of valve A is communicated with the filler opening of the piston upper chamber of valve B, be provided with another filler opening at the piston cavity of resorption of valve B simultaneously, also be communicated with the oil outlet of valve A, in piston cavity of resorption, be provided with and the taper valve rod of piston interlock, the filler opening in the piston cavity of resorption of this taper valve rod and described valve B coordinates formation one open type cone valve; Described valve C is a piston-type pressure control valve, and the oil outlet of valve A is communicated with the filler opening of the piston upper chamber of valve C, and the oil outlet of piston cavity of resorption is communicated with wheel cylinder; In addition, be also provided with a filler opening at piston cavity of resorption, be communicated with the oil outlet of the piston cavity of resorption of valve B; Also be provided with another filler opening at piston upper chamber, be communicated with the oil outlet of master cylinder, be provided with the taper valve rod linking with piston in piston upper chamber, this taper valve rod and the described filler opening being communicated with master cylinder oil outlet coordinate formation one cone valve; Described gear lever comprises interior bar and outer bar, and both connect by bearing pin, and interior bar swings around bearing pin in bar outside, between interior bar and outer bar, return spring is set, and interior bar is returned to central position; In described interior bar lower end, movable contact is set, on outer bar, with movable contact relevant position, fixed contact is set, movable contact and power cathode UNICOM, fixed contact is electrically connected with solenoid valve; The pedal switch coordinating with clutch pedal is set on vehicle body, and pedal switch one end wire is connected with solenoid valve, and the other end wire is connected with positive source; Be connected with a booster valve with master cylinder, described booster valve comprises valve body, and left and right two-piston is set in it, and right piston contacts with the piston of master cylinder, and left piston contacts with clutch pedal, leaves space, and booster valve air inlet/hydraulic fluid port is set in valve body between the two-piston of left and right; Booster valve air inlet/hydraulic fluid port is communicated with going out of described solenoid valve gas/oil end, described solenoid valve is two-position three-way valve, it enters gas/oil end and is communicated with gas/oil potential source, returning gas/oil end is connected with storage atmosphere or accumulator, the normal position of solenoid valve is booster valve and atmosphere or accumulator connection, and working position booster valve is communicated with gas/oil potential source.
Semi-automatic gear shift operating system for automobile of the present invention, by being arranged on moving, the fixed contact in gear lever, make driver in stirring gear lever, make movable contact contact with fixed contact, make hydraulic oil enter booster valve by controlling electrically-controlled valve energising, and then successively by master cylinder, valve group (valve A, valve B, valve C), wheel cylinder, act on the withdrawal fork of clutch, make clutch separation, realize gearshift.The loop throttling function that valve group has on the other hand, driver is being unclamped after gear lever, and the hydraulic oil in system rigidly connects while closing at clutch, can only reflux by the throttle valve of valve A, thereby the pressure of wheel cylinder is slowly discharged, arrive the object that clutch smooth and steady engages.
In Semi-automatic gear shift operating system for automobile inefficacy of the present invention or other situation, driver can be by trampling clutch pedal (the now pedal switch control solenoid valve power-off on clutch pedal, at this moment booster valve is connected with accumulator), clutch pedal drives total pump piston motion, hydraulic oil is acted on the withdrawal fork of clutch by valve group and wheel cylinder, driver stirs gear lever and selects gear simultaneously, finally reaches clutch speed-changing object.Driver selects, after gear, to unclamp clutch pedal, and in wheel cylinder, pressure rigidly connects while closing at clutch, slowly discharges, thereby realize the effect that clutch smooth and steady engages by the throttle valve effect of valve group.
Brief description of the drawings
Fig. 1 is Semi-automatic gear shift operating system for automobile structural drawing of the present invention;
Fig. 2 is the automobile gear shift variable-speed operating control system construction drawing of prior art;
Fig. 3 is the left view of the described gear lever of invention.
Embodiment
Below a kind of Semi-automatic gear shift operating system for automobile of the present invention is described in further detail:
As shown in Figure 1, a kind of Semi-automatic gear shift operating system for automobile, comprises master cylinder 18, wheel cylinder 2, clutch pedal 16, speed changer 3, clutch 62, gear lever 5, is provided with the valve group being made up of valve A19, valve B20, valve C21 between master cylinder and wheel cylinder; Described valve A comprises valve body 57, valve body is provided with filler opening 29, oil outlet 32, in valve body, be provided with one-way valve 28, adjustable restrictive valve 31, described filler opening 29 is communicated with the oil inlet end of one-way valve and the oil inlet end of adjustable restrictive valve, and oil outlet 32 is communicated with the oil outlet end of adjustable restrictive valve; Described valve B20 is a piston-type pressure control valve, the oil outlet 32 of valve A is communicated with the filler opening 34 of the piston upper chamber 59 of valve B, be provided with another filler opening 38 at the piston cavity of resorption 58 of valve B simultaneously, also be communicated with the oil outlet 32 of valve A, in piston cavity of resorption, be provided with and the taper valve rod 37 of piston interlock, the filler opening 38 in the piston cavity of resorption 58 of this taper valve rod and described valve B coordinates formation one open type cone valve; Described valve C21 is a piston-type pressure control valve, and the oil outlet 32 of valve A is communicated with the filler opening 55 of the piston upper chamber 45 of valve C, and the oil outlet 49 of piston cavity of resorption 48 is communicated with wheel cylinder 2; In addition, be also provided with a filler opening 50 at piston cavity of resorption 48, be communicated with the oil outlet 39 of the piston cavity of resorption of valve B; Also be provided with another filler opening 56 at piston upper chamber 45, be communicated with the oil outlet 27 of master cylinder 18, be provided with the taper valve rod 52 linking with piston in piston upper chamber, this taper valve rod and the described filler opening being communicated with master cylinder oil outlet 56 coordinate formation one cone valves; Described gear lever 5 comprises interior bar 8 and outer bar 6, and both connect by bearing pin 7, and interior bar swings around bearing pin in bar 6 outside, between interior bar 8 and outer bar 6, return spring is set, and interior bar is returned to central position; In described interior bar lower end, movable contact 11 is set, on outer bar, with movable contact relevant position, fixed contact 10 is set, movable contact and power cathode UNICOM, fixed contact 10 is electrically connected with a solenoid valve 12; The pedal switch 15 coordinating with clutch pedal is set on vehicle body, and pedal switch one end wire is connected with solenoid valve, and the other end wire is connected with positive source; Be connected with a booster valve 17 with master cylinder 18, described booster valve comprises valve body 24, left and right two-piston 22,25 is set in it, right piston 25 contacts with the piston of master cylinder 18, left piston 22 contacts with clutch pedal 16, in valve body, 22,25 of left and right two-pistons leave space, and booster valve air inlet/hydraulic fluid port 23 is set; Booster valve air inlet/hydraulic fluid port is communicated with going out of described solenoid valve gas/oil end, described solenoid valve is two-position three-way valve, it enters gas/oil end and is communicated with gas/oil potential source 13, returning gas/oil end is connected with atmosphere or accumulator 14, the normal position of solenoid valve is booster valve and atmosphere or accumulator connection, and working position booster valve is communicated with gas/oil potential source.
Described valve B20 is formed by connecting by two valve bodies 41, in valve body, be provided with piston 35, taper valve rod 37, return spring 40, stop bit bolt 33, valve B20 is divided into piston upper chamber and cavity of resorption 59,58 by described piston 35, in piston upper chamber 59, be provided with packing ring 36, stop bit bolt 33 is arranged in piston upper chamber 59 and conflicts with piston 35, the taper valve rod 37 being connected on piston 35 stretches into cavity of resorption 58, and return spring 40 is placed on outside taper valve rod and between packing ring and piston.
Described valve C21 comprises valve body 60, connect valve gap 42 is set in valve body one end, in valve body, be provided with two return springs 47, 51, piston 46, outer valve rod 53, taper valve rod 52, valve C21 is divided into upper and lower two chambeies 45 by piston 46, 48, the outer valve rod 53 being connected on piston 46 stretches into epicoele 45, return spring 47 is positioned at cavity of resorption 48 and pushes down piston, taper valve rod 52 Spielpassung are placed in outer valve rod 53, between taper stem bottom and piston 46, be provided with return spring 51, bar hole 44 is set on outer valve rod, positioning hole 54 is set on taper valve rod, locating stud 61 is arranged in positioning hole through bar hole, to the extrusion location of taper valve rod, on taper valve rod, be provided with positive stop lug boss 43, externally valve stem spacing.
Piston in booster valve, valve A, valve B, valve C and Sealing adopt oil resistant rubber leather cup.
Valve C is in the time of non-gearshift state, and outside piston 46 drives under the effect of spring 47, valve rod 53 is conflicted with the positive stop lug boss 43 of taper valve rod 52 to the right, and taper valve rod seals filler opening 56 to the right; Valve C is in the time of gearshift oil-feed state, hydraulic oil enters valve C epicoele 45 from filler opening 55, hydraulic coupling is moved to the left piston 46 and outer valve rod 53, and taper valve rod 52 under the effect of return spring 51 mutually externally valve rod reach preset position to the right, described preset position is the position of the taper valve rod while contacting with bar hole 44 of the locating stud 61 on taper valve rod.When valve C is in the time shifting gears oil return state, hydraulic oil in wheel cylinder acts on valve C piston 46, and drive outer valve rod 53 and taper valve rod 52 to move right, fluid in valve C epicoele 45 is discharged by hydraulic fluid port 55,56, until taper valve rod continue to move right seal hydraulic fluid port 56(now clutch just started engage), after this fluid in epicoele 45 can only be discharged by valve A throttle valve 31 from hydraulic fluid port 55.The effect of the preset position that the relatively outer valve rod of above-mentioned taper valve rod stretches out is to the right exactly to meet wheel cylinder to start oil return to clutch and rigidly connect while closing, taper valve rod just seals hydraulic fluid port 56, ensure when wheel cylinder has just started oil return normal flow oil return by hydraulic fluid port 56 and clutch rigidly connect close after by the slow fuel-economizing oil return of hydraulic fluid port 55.
The outer bar of described gear lever 5 is U-shaped, and interior bar is placed in outer bar, and connects by bearing pin 7, can swing with respect to outer bar.On a side outer wall of bar, return spring 9 is set outside, the two ends of return spring are overlapped on outer bar opening surface, and internally return is carried out in the swing of bar.In addition, outer bar has and the same mounting structure of existing replacing vehicle pin and function, connects the gear shifting structure of speed changer by driving link, selects gear shift position.
Between the neutral switch of speed changer and fixed contact, be connected delayer 4 is set.
The valve body 57 of described valve A, is provided with exhaust port 30, and exhaust port is located at being connected on oil duct of one-way valve oil outlet end and adjustable restrictive valve oil inlet end.
In the time that automobile needs to shift gears under steam, driver manipulates gear lever 5, now in gear lever, bar 8 first overcomes the power of return spring 9 and produces relative displacement with outer bar 6, movable contact 11 on interior bar is contacted with the electric shock of determining on outer bar 10, solenoid valve 12 is switched on, and hydraulic oil enters booster valve 17, promotes right piston 25 and moves right, and then the piston movement of drive master cylinder 18, hydraulic oil is pressed into valve group (valve A, valve B, valve C).The one-way valve 28 that now first hydraulic oil wash valve A19 open enters the cavity of resorption 58 of valve B and the epicoele 45 of epicoele 59 and valve C, the hydraulic oil of valve B cavity of resorption 58 enters wheel cylinder 2 through the cavity of resorption 48 of valve C again, along with wheelcylinder piston drives clutch release fork 1, after clutch bearing contacts with clutch disengaging lever, withdrawal fork is stressed, in valve group, oil circuit oil pressure raises, oil pressure acts in valve B on piston 35, the power that oil pressure overcomes return spring 40 in valve B is moved to the left taper valve rod 37 and blocks fluid to enter valve B cavity of resorption 58, now hydraulic oil enters the epicoele 45 of valve C by valve C filler opening 55, hydraulic coupling is moved to the left piston 46 and outer valve rod 53, when outer valve rod moves to when bar hole 44 is contacted with locating stud 61, outer valve rod just drives taper valve rod 52 to be moved to the left and opens filler opening 56, hydraulic oil enters piston 46 that valve C epicoele 45 promotes valve C to left movement, the hydraulic oil of valve C cavity of resorption is pressed into wheel cylinder, make clutch separation by withdrawal fork.Meanwhile driver manipulates in gear lever bar and drives outer bar to move forward and backward to realize and move back shelves or enter shelves, driver's manipulation force to gear lever that comes loose, and movable contact separates and gets back to home position with fixed contact, and solenoid valve power-off is got back to normal, and booster valve is communicated with accumulator.At this moment the power of clutch pressure plate spring is acted on clutch slave cylinder wheelcylinder piston is moved right by withdrawal fork, and then make valve C piston 46 drive outer valve rod 53 and taper valve rod 52 to move right, until taper valve rod 52 is blocked filler opening 56 (now clutch driven plate and driving disc rigidly connect tactile), fluid in valve C can only reflux by the adjustable restrictive valve of valve A 31, due to the control flow effect of throttle orifice, pressure in clutch slave cylinder is slowly discharged, thereby make the joint of clutch smooth and steady, complete whole gearshift flow process.
When in the inefficacy of this Semi-automatic gear shift operating system for automobile or other situation, driver steps on clutch pedal, pedal switch 15 on it disconnects booster valve 17 and hydraulic power 13 by controlling solenoid valve 12, clutch pedal drives the left piston 22 of booster valve to move right simultaneously, drive master cylinder, act on wheel cylinder by valve group again, thereby complete clutch disengage process.Driver unclamps pedal, and the pressure in clutch speed-changing system, by the throttling action of valve group, also can be realized clutch smooth and steady and engage effect.
In compact car and minicar, time delay device can be set, because compact car and minicar driver only trample a clutch pedal and just complete shift process in the time of gearshift, therefore time delay device is arranged between the neutral position switch on fixed contact and speed changer, make gear lever in the time of neutral gear position, even if movable contact separates with fixed contact, also can make solenoid valve 12 energising work 1.5 seconds, keep the pressure in booster valve, thereby the separated state that allows clutch keep 1.5 seconds, delay time can be adjusted in advance.
Claims (6)
1. a Semi-automatic gear shift operating system for automobile, comprises master cylinder (18), wheel cylinder (2), clutch pedal (16), speed changer (3), clutch (62), gear lever (5), it is characterized in that:
Between master cylinder and wheel cylinder, be provided with the valve group being formed by valve A (19), valve B (20), valve C (21);
Described valve A comprises valve body (57), valve body is provided with filler opening (29), oil outlet (32), in valve body, be provided with one-way valve (28), adjustable restrictive valve (31), described filler opening (29) is communicated with the oil outlet (27) of master cylinder (18), in valve body, be communicated with again with the oil inlet end of one-way valve and the oil inlet end of adjustable restrictive valve, oil outlet (32) is communicated with the oil outlet end of adjustable restrictive valve;
Described valve B (20) is a piston-type pressure control valve, the oil outlet (32) of valve A is communicated with the filler opening (34) of the piston upper chamber (59) of valve B, be provided with another filler opening (38) at the piston cavity of resorption (58) of valve B simultaneously, also be communicated with the oil outlet (32) of valve A, in piston cavity of resorption, be provided with the taper valve rod (37) linking with piston, this taper valve rod filler opening (38) interior with the piston cavity of resorption (58) of described valve B coordinates formation one open type cone valve;
Described valve C (21) is a piston-type pressure control valve, and the oil outlet (32) of valve A is communicated with the filler opening (55) of the piston upper chamber (45) of valve C, and the oil outlet (49) of piston cavity of resorption (48) is communicated with wheel cylinder (2); In addition, be also provided with a filler opening (50) at piston cavity of resorption (48), be communicated with the oil outlet (39) of the piston cavity of resorption of valve B; Also be provided with another filler opening (56) at piston upper chamber (45), be communicated with the oil outlet of master cylinder (18), in piston upper chamber, be provided with the taper valve rod (52) linking with piston, this taper valve rod and the described filler opening being communicated with master cylinder oil outlet (56) coordinate formation one cone valve;
Described gear lever (5) comprises interior bar (8) and outer bar (6), and both connect by bearing pin (7), and interior bar swings around bearing pin in bar (6) outside, between interior bar (8) and outer bar (6), return spring (9) is set, and interior bar is returned to central position; In described interior bar lower end, movable contact (11) is set, on outer bar, with movable contact relevant position, fixed contact (10) is set, movable contact and power cathode UNICOM, fixed contact (10) is electrically connected with solenoid valve (12); The pedal switch (15) coordinating with clutch pedal (16) is set on vehicle body, and one end wire of pedal switch is connected with solenoid valve, and the other end wire is connected with positive source;
Be connected with a booster valve (17) with master cylinder (18), described booster valve comprises valve body (24), left and right two-piston (22,25) is set in it, right piston (25) contacts with the piston of master cylinder (18), left piston (22) contacts with clutch pedal (16), in valve body, between left and right two-piston (22,25), leave space, and booster valve air inlet/hydraulic fluid port (23) is set; Booster valve air inlet/hydraulic fluid port is communicated with going out of described solenoid valve gas/oil end, described solenoid valve is two-position three-way valve, it enters gas/oil end and is communicated with gas/oil potential source (13), returning gas/oil end is connected with atmosphere or accumulator (14), the normal position of solenoid valve is booster valve and atmosphere or accumulator connection, and working position booster valve is communicated with gas/oil potential source.
2. Semi-automatic gear shift operating system for automobile according to claim 1, it is characterized in that: described valve B (20) is formed by connecting by two valve bodies (41), in valve body, be provided with piston (35), taper valve rod (37), return spring (40), stop bit bolt (33), valve B (20) is divided into piston upper chamber and piston cavity of resorption (59 by described piston (35), 58), in piston upper chamber (59), be provided with packing ring (36), stop bit bolt (33) is arranged in piston upper chamber (59) and conflicts with piston (35), the taper valve rod (37) being connected on piston (35) stretches into piston cavity of resorption (58), return spring (40) is placed on outside taper valve rod and between packing ring and piston.
3. Semi-automatic gear shift operating system for automobile according to claim 1, it is characterized in that: described valve C (21) comprises valve body (60), connect valve gap (42) is set in valve body one end, in valve body, be provided with two return springs (47, 51), piston (46), outer valve rod (53), taper valve rod (52), piston (46) is by valve C(21) be divided into upper and lower two chambeies (48, 45), the outer valve rod (53) being connected on piston (46) stretches into epicoele (45), return spring (47) is positioned at cavity of resorption (48) and pushes down piston, taper valve rod (52) Spielpassung is placed in outer valve rod (53), between taper stem bottom and piston (46), be provided with return spring (51), bar hole (44) is set on outer valve rod, positioning hole (54) is set on taper valve rod, locating stud (61) is arranged in positioning hole through bar hole, to the extrusion location of taper valve rod, on taper valve rod, be provided with positive stop lug boss (43), externally valve stem spacing.
4. Semi-automatic gear shift operating system for automobile according to claim 1, it is characterized in that: the outer bar of described gear lever (5) is U-shaped, interior bar is placed in outer bar, and connect by bearing pin (7), on a side outer wall of bar, return spring (9) is set outside, the two ends of return spring are overlapped on outer bar opening surface, make interior bar return after swing.
5. Semi-automatic gear shift operating system for automobile according to claim 1, is characterized in that: between the neutral switch of speed changer and fixed contact, be connected delayer (4) is set.
6. Semi-automatic gear shift operating system for automobile according to claim 1, it is characterized in that: the valve body (57) of described valve A is provided with exhaust port (30), exhaust port is located at being connected on oil duct of one-way valve oil outlet end and adjustable restrictive valve oil inlet end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110438266.0A CN102494119B (en) | 2011-12-24 | 2011-12-24 | Semi-automatic gear shift operating system for automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110438266.0A CN102494119B (en) | 2011-12-24 | 2011-12-24 | Semi-automatic gear shift operating system for automobile |
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| CN102494119A CN102494119A (en) | 2012-06-13 |
| CN102494119B true CN102494119B (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110438266.0A Active CN102494119B (en) | 2011-12-24 | 2011-12-24 | Semi-automatic gear shift operating system for automobile |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105370874B (en) * | 2014-08-18 | 2018-11-16 | 韩培洲 | Without clutch pedal manual transmission |
| CN106321806B (en) * | 2016-09-26 | 2018-10-12 | 华能伊敏煤电有限责任公司 | The manual shift device of the automatic gear-box of dump truck |
| CN106678349A (en) * | 2016-11-29 | 2017-05-17 | 慕彩霞 | Auxiliary electric control clutch device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2100525U (en) * | 1990-12-31 | 1992-04-01 | 衡阳拖拉机厂 | Electric-controlled pneumatic means of automotive clutch operating mechanism |
| JPH08135779A (en) * | 1994-11-04 | 1996-05-31 | Daihatsu Motor Co Ltd | Hydraulic control device for automatic transmission |
| CN1740583A (en) * | 2004-08-23 | 2006-03-01 | 胡华泉 | Hydraulic operation mechanism of semi-automatic clutch |
| CN201192984Y (en) * | 2008-02-18 | 2009-02-11 | 苏伟 | Stable and safe engaging and disengaging gear for vehicle |
| CN201313503Y (en) * | 2008-12-06 | 2009-09-23 | 孙昌锡 | Automobile shift system |
| CN201342942Y (en) * | 2008-12-09 | 2009-11-11 | 瑞立集团瑞安汽车零部件有限公司 | Gear shifting device |
| CN201395060Y (en) * | 2009-05-08 | 2010-02-03 | 广西玉柴机器股份有限公司 | Clutch automatic control system |
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Owner name: CHONGQING CHANGFENG NEW ENERGY TECHNOLOGY CO., LTD Free format text: FORMER OWNER: ZHUANG XIAOLIN Effective date: 20140522 |
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