CN109114217A - Shift hydraulic control system, speed changer and automobile - Google Patents

Shift hydraulic control system, speed changer and automobile Download PDF

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Publication number
CN109114217A
CN109114217A CN201710482357.1A CN201710482357A CN109114217A CN 109114217 A CN109114217 A CN 109114217A CN 201710482357 A CN201710482357 A CN 201710482357A CN 109114217 A CN109114217 A CN 109114217A
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CN
China
Prior art keywords
oil
valve
throttle valve
cylinder chamber
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710482357.1A
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Chinese (zh)
Inventor
袁敏刚
邱洪祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inner Mongol Ou Yide Engine Ltd
Original Assignee
Inner Mongol Ou Yide Engine Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Inner Mongol Ou Yide Engine Ltd filed Critical Inner Mongol Ou Yide Engine Ltd
Priority to CN201710482357.1A priority Critical patent/CN109114217A/en
Publication of CN109114217A publication Critical patent/CN109114217A/en
Pending legal-status Critical Current

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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
    • F16H61/38Control 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
    • F16H61/04Smoothing ratio shift

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The invention discloses a kind of shift hydraulic control system, speed changer and automobiles, it include: oil pump and oil return fuel tank, the oil pump is parallel with the first oil cylinder chamber and the second oil cylinder chamber, the first oil circuit is formed between the oil pump and the first oil cylinder chamber, the second oil circuit is formed between the oil pump and the second oil cylinder chamber, is connected with hydraulic valve on second oil circuit, is connected with oil return circuit between the oil pump and hydraulic valve, overflow valve is connected on the oil return circuit, the overflow valve is connect with oil return fuel tank.Shift hydraulic control system, speed changer and automobile provided by the invention can guarantee the stationarity of automobile gear shift.

Description

Shift hydraulic control system, speed changer and automobile
Technical field
The present embodiments relate to automobile manufacturing field more particularly to a kind of shift hydraulic control systems, speed changer and vapour Vehicle.
Background technique
When automobile gear shift, automobile gear shift hydraulic control system is for the oil liquid flowing between control oil pump and oil cylinder, oil Liquid pushes the piston motion in oil cylinder to realize the holding and separation of clutch-plate by the oil liquid pumped in oil pump, that is, real The gear shift operation of existing automobile.In the prior art between entire oil pump and oil cylinder without buffer unit, since the oil pressure of oil pump is constant, When shift, the pressure of oil pump can directly impact oil cylinder, larger to the impact of oil cylinder, cause the stationarity of shift bad.
Summary of the invention
The present invention provides a kind of shift hydraulic control system, speed changer and automobile, to solve defect in the prior art, Realize steady shift.
One aspect of the present invention provides a kind of shift hydraulic control system, comprising: oil pump and oil return fuel tank, the oil pump are in parallel There are the first oil cylinder chamber and the second oil cylinder chamber, forms the first oil circuit, the oil pump and second between the oil pump and the first oil cylinder chamber The second oil circuit is formed between oil cylinder chamber, is connected with hydraulic valve on second oil circuit, is connected between the oil pump and hydraulic valve There is oil return circuit, overflow valve is connected on the oil return circuit, the overflow valve is connect with oil return fuel tank.
Further, first segment is also in series on second oil circuit and between the oil pump and the hydraulic valve Flow valve and second throttle.
Further, it is equipped with third throttle valve, the 4th throttle valve and the first check valve on first oil circuit, described the Three throttle valves are connected with the first check valve, and the 4th throttle valve is in parallel with third throttle valve and the first check valve, and described One check valve is connected along the direction of the third throttle valve to the first oil cylinder chamber.
Further, it is equipped with the 5th throttle valve, the 6th throttle valve and second one-way valve on second oil circuit, described the Five throttle valves are connected with second one-way valve, and the 6th throttle valve is in parallel with the 5th throttle valve and second one-way valve, and described Two check valves are connected along the direction of the 5th throttle valve to the second oil cylinder chamber.
Another aspect of the present invention provides a kind of speed changer, which is characterized in that is equipped in the speed changer any one of as above The shift hydraulic control system.
Another aspect of the invention provides a kind of automobile, and speed changer as described above is equipped on the automobile.
Shift hydraulic control system, speed changer and automobile provided by the invention, by overflow valve of connecting on oil return circuit, By the oil pressure of the second oil circuit of overflow valve regulation, back pressure can produce, keep cylinder piston motion steady, in the first oil cylinder chamber oil inlet During being switched to the second oil cylinder chamber oil inlet, so that being able to maintain that stable pressure on the second oil circuit, not to oil cylinder piston It will cause greater impact, guarantee the smoothness and stability of shift.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the shift hydraulic control system that one embodiment of the invention provides.
Appended drawing reference:
1- oil pump;2- oil return fuel tank;3- the first oil cylinder chamber;
4- the second oil cylinder chamber;The first oil circuit of 5-;The second oil circuit of 6-;
7- hydraulic valve;8- oil return circuit;9- overflow valve;
10- first throttle valve;11- second throttle;12- third throttle valve;
The 4th throttle valve of 13-;The first check valve of 14-;The 5th throttle valve of 15-;
The 6th throttle valve of 16-;17- second one-way valve;The 7th throttle valve of 18-.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Embodiment one
Fig. 1 is the structural schematic diagram for the shift hydraulic control system that one embodiment of the invention provides.Attached drawing 1 is please referred to, this Embodiment provides a kind of shift hydraulic control system, comprising: oil pump 1 and oil return fuel tank 2, oil pump 1 are parallel with 3 He of the first oil cylinder chamber Second oil cylinder chamber 4 forms the first oil circuit 5 between oil pump 1 and the first oil cylinder chamber 3, is formed between oil pump 1 and the second oil cylinder chamber 4 Two oil circuits 6 are connected with hydraulic valve 7 on second oil circuit 6, oil return circuit 8, oil return circuit are connected between oil pump 1 and hydraulic valve 7 Overflow valve 9 is connected on 8, overflow valve 9 is connect with oil return fuel tank 2.
Specifically, the first oil cylinder chamber 3 and the second oil cylinder chamber 4 are used to be separately connected clutch, to drive clutch to be changed Gear manipulation is switched to the intermediate period of 4 oil inlet of the second oil cylinder chamber by 3 oil inlet of the first oil cylinder chamber, passes through oil return circuit in shift Overflow valve 9 on 8 maintains the oil liquid pressure in the second oil circuit 6 so that the spool of hydraulic valve 7 be able to maintain that it is at one relatively steady Fixed position, and make when oil pump 1 pumps oil liquid to the second oil cylinder chamber 4 by the second oil circuit 6, overflow valve 9 plays regulating system The effect of pressure reduces shift shock so that shift control is more smoothly and stablizes.
Shift hydraulic control system provided in this embodiment passes through overflow by overflow valve 9 of connecting on oil return circuit 8 Valve 9 adjusts the oil pressure of the second oil circuit 6, can produce back pressure, keeps cylinder piston motion steady, switches in 3 oil inlet of the first oil cylinder chamber During 4 oil inlet of the second oil cylinder chamber, so that stable pressure is able to maintain that on the second oil circuit 6, it will not to oil cylinder piston Greater impact is caused, guarantees the smoothness and stability of shift.Shift hydraulic control system in the present embodiment, due to increasing Overflow valve 9, but also the pressure oil at overflow valve 9 can be guided at each idle hydraulic valve (such as hydraulic valve 7), this In the operating condition, the spool of these idle hydraulic valves can also be controlled by small pressure oil and be in one relatively sample At constant position, in this way, when converting gear, the case where being just not in oil circuit sinuous flow.And also ensure gear shift Smoothness and stability, the case where capable of preferably fighting climb and fall and car strenuous vibration.
Further, first throttle valve 10 can also be in series on the second oil circuit 6 and between oil pump 1 and hydraulic valve 7 With second throttle 11.On the second oil circuit 6, the second oil circuit is controlled by concatenated first throttle valve 10 and second throttle 11 The flow of oil liquid in 6 preferably controls the oil liquid pressure being input in the second oil cylinder chamber 4, is further ensured that shift is steady.
Third throttle valve 12, the 4th throttle valve 13 and the first check valve 14, third section are also provided on the first oil circuit 5 Stream valve 12 is connected with the first check valve 14, and the 4th throttle valve 13 is in parallel with third throttle valve 12 and the first check valve 14, and first Check valve 14 is connected along the direction of the 12 to the first oil cylinder of third throttle valve chamber 3.Specifically, can be by the entrance of the first check valve 14 It being connect with third throttle valve 12, the outlet of the first check valve 14 is connect with the first oil cylinder chamber 3, in the first oil cylinder 3 oil inlet of chamber, oil Liquid flows in the first oil cylinder chamber 3 by third throttle valve 12, the first check valve 14 and the 4th throttle valve 13, passes through throttle valve Throttling action, so that the flow of hydraulic oil is further controlled, oil liquid impacts oil cylinder piston smaller when shift, is conducive to protect Card shift is steady.Also, in oil return, due to the first check valve 14 can only one-way conduction, the oil liquid in the first oil cylinder chamber 3 is only capable of The first oil cylinder chamber 3 is flowed out by the 4th throttle valve 13, only once throttles, shift speed is enabled to be unlikely to too low, while the Four throttle valves 13 also function to certain buffer function, and shift is steady.
It is similar, it is equipped with the 5th throttle valve 15, the 6th throttle valve 16 and second one-way valve 17 on the second oil circuit 6, the 5th Throttle valve 15 is connected with second one-way valve 17, and the 6th throttle valve 16 is in parallel with the 5th throttle valve 15 and second one-way valve 17, the Two check valves 17 are connected along the direction of the 5th the 15 to the second oil cylinder of throttle valve chamber 4.5th throttle valve 15, the 6th throttle valve 16 and Third throttle valve 12, the 4th throttle valve 13 and the first check valve 14 in the effect of two check valves 17 and principle and the first oil circuit 5 Similar, details are not described herein.Certainly, the 7th throttle valve 18 can also be connected in the exit of hydraulic valve 7, multiple throttle valves are matched It closes, the oil liquid flow on the second oil circuit 6 is reliably controlled.
Embodiment two
The present embodiment provides a kind of speed changer, the hydraulic control of shift described in embodiment one as above is installed in the speed changer System processed.
Wherein, the structure and function for hydraulic control system of shifting gears is same as the previously described embodiments, and therefore not to repeat here.
Embodiment three
A kind of automobile is equipped with speed changer provided by embodiment two on automobile.Automobile provided in this embodiment is being shifted gears More smooth in the process and stable, users'comfort is preferable.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features; And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and Range.

Claims (6)

1. a kind of shift hydraulic control system characterized by comprising oil pump and oil return fuel tank, the oil pump are parallel with first Oil cylinder chamber and the second oil cylinder chamber form the first oil circuit, the oil pump and the second oil cylinder chamber between the oil pump and the first oil cylinder chamber Between form the second oil circuit, be connected with hydraulic valve on second oil circuit, be connected with oil return between the oil pump and hydraulic valve Oil circuit is connected with overflow valve on the oil return circuit, and the overflow valve is connect with oil return fuel tank.
2. shift hydraulic control system according to claim 1, which is characterized in that on second oil circuit and in institute It states and is also in series with first throttle valve and second throttle between oil pump and the hydraulic valve.
3. shift hydraulic control system according to claim 2, which is characterized in that be equipped with third on first oil circuit Throttle valve, the 4th throttle valve and the first check valve, the third throttle valve are connected with the first check valve, the 4th throttle valve with Third throttle valve and the first check valve are in parallel, and first check valve is along the third throttle valve to the first oil cylinder chamber Direction conducting.
4. shift hydraulic control system according to claim 3, which is characterized in that be equipped with the 5th on second oil circuit Throttle valve, the 6th throttle valve and second one-way valve, the 5th throttle valve are connected with second one-way valve, the 6th throttle valve with 5th throttle valve and second one-way valve are in parallel, and the second one-way valve is along the 5th throttle valve to the second oil cylinder chamber Direction conducting.
5. a kind of speed changer, which is characterized in that installation is just like the described in any item shifts of Claims 1 to 4 in the speed changer Hydraulic control system.
6. a kind of automobile, which is characterized in that be equipped with speed changer as claimed in claim 5 on the automobile.
CN201710482357.1A 2017-06-22 2017-06-22 Shift hydraulic control system, speed changer and automobile Pending CN109114217A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710482357.1A CN109114217A (en) 2017-06-22 2017-06-22 Shift hydraulic control system, speed changer and automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710482357.1A CN109114217A (en) 2017-06-22 2017-06-22 Shift hydraulic control system, speed changer and automobile

Publications (1)

Publication Number Publication Date
CN109114217A true CN109114217A (en) 2019-01-01

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ID=64732889

Family Applications (1)

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CN201710482357.1A Pending CN109114217A (en) 2017-06-22 2017-06-22 Shift hydraulic control system, speed changer and automobile

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CN (1) CN109114217A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02129413A (en) * 1988-11-09 1990-05-17 Honda Motor Co Ltd Clutch control device of transmission
CN102062204A (en) * 2010-11-16 2011-05-18 浙江吉利汽车研究院有限公司 Clutch hydraulic control device of double-clutch automatic transmission
CN102913614A (en) * 2012-10-23 2013-02-06 重庆赛特尔机械有限公司 Hydraulic control system of automatic gearshift automobile transmission
CN103470751A (en) * 2013-09-29 2013-12-25 长城汽车股份有限公司 Hybrid electric vehicle and double clutch automatic transmission used for hybrid electric vehicle
CN204099575U (en) * 2014-09-12 2015-01-14 绍兴金道齿轮箱有限公司 The proportional hydraulic control system of fork truck hydraulic transmission gearbox
CN205824143U (en) * 2016-03-09 2016-12-21 内蒙古欧意德发动机有限公司 Combination type valve body structure, change speed gear box and automobile
CN106812932A (en) * 2015-12-01 2017-06-09 张学 A kind of selectivity output hydraulic control system of dual-clutch automatic transmission
CN207034162U (en) * 2017-06-22 2018-02-23 内蒙古欧意德发动机有限公司 Gearshift hydraulic control system, speed changer and automobile

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02129413A (en) * 1988-11-09 1990-05-17 Honda Motor Co Ltd Clutch control device of transmission
CN102062204A (en) * 2010-11-16 2011-05-18 浙江吉利汽车研究院有限公司 Clutch hydraulic control device of double-clutch automatic transmission
CN102913614A (en) * 2012-10-23 2013-02-06 重庆赛特尔机械有限公司 Hydraulic control system of automatic gearshift automobile transmission
CN103470751A (en) * 2013-09-29 2013-12-25 长城汽车股份有限公司 Hybrid electric vehicle and double clutch automatic transmission used for hybrid electric vehicle
CN204099575U (en) * 2014-09-12 2015-01-14 绍兴金道齿轮箱有限公司 The proportional hydraulic control system of fork truck hydraulic transmission gearbox
CN106812932A (en) * 2015-12-01 2017-06-09 张学 A kind of selectivity output hydraulic control system of dual-clutch automatic transmission
CN205824143U (en) * 2016-03-09 2016-12-21 内蒙古欧意德发动机有限公司 Combination type valve body structure, change speed gear box and automobile
CN207034162U (en) * 2017-06-22 2018-02-23 内蒙古欧意德发动机有限公司 Gearshift hydraulic control system, speed changer and automobile

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