CN103363101A - Dual clutch automatic transmission and hydraulic pressure gear-shifting control system thereof - Google Patents
Dual clutch automatic transmission and hydraulic pressure gear-shifting control system thereof Download PDFInfo
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- CN103363101A CN103363101A CN2013103269265A CN201310326926A CN103363101A CN 103363101 A CN103363101 A CN 103363101A CN 2013103269265 A CN2013103269265 A CN 2013103269265A CN 201310326926 A CN201310326926 A CN 201310326926A CN 103363101 A CN103363101 A CN 103363101A
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- 230000005540 biological transmission Effects 0.000 title abstract description 5
- 230000009977 dual effect Effects 0.000 title abstract description 5
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 188
- 239000012530 fluid Substances 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 abstract description 16
- 235000019198 oils Nutrition 0.000 description 41
- 230000008859 change Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control 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
- F16H61/68—Control 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 specially adapted for stepped gearings
- F16H61/684—Control 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 specially adapted for stepped gearings without interruption of drive
- F16H61/688—Control 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 specially adapted for stepped gearings without interruption of drive with two inputs, e.g. selection of one of two torque-flow paths by clutches
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control 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
- F16H61/02—Control 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
- F16H61/0202—Control 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
- F16H61/0204—Control 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
- F16H61/0206—Layout of electro-hydraulic control circuits, e.g. arrangement of valves
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention discloses a dual clutch automatic transmission and a hydraulic pressure gear-shifting control system thereof. The hydraulic pressure gear-shifting control system of the dual clutch automatic transmission comprises a first odd-number selector fork, a second odd-number selector fork, a first even-number selector fork, a second even-number selector fork, a main oil line, a first reversing valve component, a second reversing valve component, a first regulating valve, a second regulating valve, a first control valve and a second control valve. The first control valve controls the first reversing valve component to switch a working condition, and the second control valve controls the second reversing valve component to switch a working condition. The switchover of the working conditions of the first reversing valve component and the second reversing valve component changes the flow direction of oil, the first regulating valve and the second regulating valve regulate oil pressure on two ends of the corresponding sector fork, so that only one sector fork can be controlled at the same time. According to the hydraulic pressure gear-shifting control system of the dual clutch automatic transmission provided by the embodiment of the invention, the number of the control valves is fewer, the cost is low, and the mistake proofing function of shifts is reliable.
Description
Technical field
The present invention relates to vehicular field, in particular to the hydraulic gear-shifting control system of a kind of double-clutch automatic gearbox and this double-clutch automatic gearbox.
Background technique
The solenoid valve quantity that the hydraulic gear-shifting control system of existing double-clutch automatic gearbox adopts is more, and the combination by switch electromagnetic valve and multiple directional control valve realizes shift transformation, and cost is high and control system is complicated.
Summary of the invention
The present invention is intended to one of solve the problems of the technologies described above at least to a certain extent.For this reason, one object of the present invention is to propose the hydraulic gear-shifting control system of the low and reliable double-clutch automatic gearbox of gear error-disable function of a kind of cost.
Another object of the present invention is to propose a kind of double-clutch automatic gearbox with described hydraulic gear-shifting control system.
A kind of hydraulic gear-shifting control system of double-clutch automatic gearbox is proposed according to the embodiment of first aspect present invention to achieve these goals.The hydraulic gear-shifting control system of described double-clutch automatic gearbox comprises the first odd number gear shift fork, the second odd number gear shift fork, the first even number gear shift fork, the second even number gear shift fork and working connection; The first reversing valve assembly, described the first reversing valve assembly links to each other with described the first odd number gear shift fork respectively by the first and second seed oil roads, and link to each other with described the second odd number gear shift fork respectively by the third and fourth seed oil road, and link to each other with described the first even number gear shift fork respectively with the 6th seed oil road by the 5th, and link to each other with described the second even number gear shift fork respectively with the 8th seed oil road by the 7th; The second reversing valve assembly, described the second reversing valve assembly links to each other with described the first reversing valve assembly respectively by the 9th to the 12 seed oil road; The first and second modulating valve, described first with described the second modulating valve in each first end all link to each other with described the second reversing valve assembly and the second end all links to each other with described working connection; The first control valve, described the first control valve and described the first reversing valve assembly link to each other to control described the first reversing valve assembly and are in the first working state all being communicated with described the 12 seed oil road with the 11 seed oil road and the described the 6th with the tenth seed oil road, the described the 5th with described the 9th seed oil road, described second described first, or control described the first reversing valve assembly and be in the second working state all to be communicated with the 12 seed oil road with the 11 seed oil road, the described the 8th with described the tenth seed oil road, the described the 7th with the 9th seed oil road, the described the 4th the described the 3rd; The second control valve, described the second control valve and described the second reversing valve assembly link to each other to control described the second reversing valve assembly and are in the 3rd working state so that described the first modulating valve is communicated with described the tenth seed oil road with described the 9th seed oil road, described the second modulating valve, or control the second reversing valve assembly and be in the 4th working state so that described the first modulating valve is communicated with described the 12 seed oil road with described the 11 seed oil road, described the second modulating valve.
That common adjusting by described the first modulating valve and described the second modulating valve realizes according to the realization of each gear of the hydraulic gear-shifting control system of the double-clutch automatic gearbox of the embodiment of the invention.That is to say, the realization of each gear is to realize by the oil pressure at the two ends of the control shift fork corresponding with this gear.Simultaneously, when described the second reversing valve assembly was in the 3rd working state, the hydraulic gear-shifting control system of double-clutch automatic gearbox can realize the control of odd number gear; When described the second reversing valve assembly was in the 4th working state, the hydraulic gear-shifting control system of double-clutch automatic gearbox can realize the control of even number gear and the gear that reverses gear.
Further, no matter described the second reversing valve assembly is in the 3rd working state or described the second reversing valve assembly is in the 4th working state, the same time of hydraulic gear-shifting control system of double-clutch automatic gearbox can only be controlled a shift fork, thereby realized the uniqueness of shift control, played the gear error-disable function.Further, realize the gear error-disable function by the structural design to described the first reversing valve assembly and described the second reversing valve assembly, improved the reliability of hydraulic gear-shifting control system.
In addition, described the first control valve is controlled the flow direction that described the first reversing valve assembly switch operating state changes oil, described the second selector valve is controlled the flow direction that described the second reversing valve assembly switch operating state changes oil, thereby reduced the quantity of control valve of the hydraulic gear-shifting control system of double-clutch automatic gearbox, and reduced cost.
Therefore according to the hydraulic gear-shifting control system of the double-clutch automatic gearbox of the embodiment of the invention, the less control valve of usage quantity has realized that switching, the cost between each gear of double-clutch automatic gearbox is low and the gear error-disable function is reliable.
In addition, the hydraulic gear-shifting control system of double-clutch automatic gearbox according to the above embodiment of the present invention can also have following additional technical characteristics:
According to one embodiment of present invention, described the first reversing valve assembly comprises the first selector valve and the second selector valve, wherein said the first selector valve links to each other with the two ends of described the first odd number gear shift fork respectively with described the second seed oil road by described first, and links to each other with the two ends of described the second odd number gear shift fork respectively with described the 4th seed oil road by the described the 3rd; Described the second selector valve links to each other with the two ends of described the first even number gear shift fork respectively with described the 6th seed oil road by the described the 5th, and links to each other with the two ends of described the second even number gear shift fork respectively with described the 8th seed oil road by the described the 7th.
According to one embodiment of present invention, described the second reversing valve assembly comprises the 3rd selector valve and the 4th selector valve, wherein said the 3rd selector valve links to each other with described the first selector valve respectively with described the tenth seed oil road by described the 9th seed oil road, and described the 4th selector valve links to each other with described the second selector valve respectively with described the 12 seed oil road by described the 11 seed oil road.
According to one embodiment of present invention, be connected with the 13 and the 14 seed oil road between the first end of described the first modulating valve and described the 3rd selector valve, be connected with the 15 and the 16 seed oil road between the first end of described the second modulating valve and described the 4th selector valve, be connected with the 17 seed oil road and the 18 seed oil road between described the 3rd selector valve and the 4th selector valve, wherein described the 18 seed oil road and described the tenth seed oil road when described the second reversing valve assembly is in the 3rd working state, described the 13 seed oil road is communicated with described the 9th seed oil road, and when described the second reversing valve assembly is in the 4th working state described the 17 seed oil road and described the 12 seed oil road, described the 15 seed oil road is communicated with described the 11 seed oil road.
Alternatively, described the first control valve and described the second control valve are solenoid valve.
Alternatively, described the first modulating valve and described the second modulating valve are proportional pressure valve.
Further, the hydraulic gear-shifting control system of described double-clutch automatic gearbox also comprises: the first filter and the second filter that filter fluid, described the first filter is connected between the second end of described working connection and described the first modulating valve, and described the second filter is connected between the second end of described working connection and described the second modulating valve.Can the oil in the hydraulic gear-shifting control system of described double-clutch automatic gearbox be filtered thus, the damage of avoiding the impurity in the oil that the component in the hydraulic gear-shifting control system of described double-clutch automatic gearbox are caused, the working life of improving described component.
Embodiment according to second aspect present invention proposes a kind of double-clutch automatic gearbox.Described double-clutch automatic gearbox comprises the hydraulic gear-shifting control system according to the described double-clutch automatic gearbox of first aspect present invention, thereby has realized switching and gear error-disable function between each gear with low cost, simple structure.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming embodiment's the description in conjunction with following accompanying drawing, wherein:
Fig. 1 is the structural representation of the hydraulic gear-shifting control system according to the double-clutch automatic gearbox of the embodiment of the invention when being in 1 gear or 3 gear;
Fig. 2 is the structural representation of the hydraulic gear-shifting control system according to the double-clutch automatic gearbox of the embodiment of the invention when being in 5 gears or 7 gear;
Fig. 3 is the structural representation of the hydraulic gear-shifting control system according to the double-clutch automatic gearbox of the embodiment of the invention when being in 2 gears or 4 gear;
Fig. 4 is the structural representation of the hydraulic gear-shifting control system according to the double-clutch automatic gearbox of the embodiment of the invention when being in 6 gears or R gear.
Description of reference numerals:
The hydraulic gear-shifting control system 10 of double-clutch automatic gearbox, the first odd number gear shift fork 11, the second odd number gear shift fork 12, the first even number gear shift fork 13, the second even number gear shift fork 14, working connection 20, the first seed oil road 201, the second seed oil road 202, the 3rd seed oil road 203, the 4th seed oil road 204, the 5th seed oil road 205, the 6th seed oil road 206, the 7th seed oil road 207, the 8th seed oil road 208, the 9th seed oil road 209, the tenth seed oil road 210, the 11 seed oil road 211, the 12 seed oil road 212;
The 13 seed oil road 213, the 14 seed oil road 214, the 15 seed oil road 215, the 16 seed oil road 216, the 17 seed oil road 217, the 18 seed oil road 218, the first reversing valve assembly 31, the first selector valve 311, the second selector valve 312,
The second reversing valve assembly 32, the 3rd selector valve 321, the 4th selector valve 322, the first modulating valve 41, the second modulating valve 42, the first control valve 51, the second control valve 52, the first filter 61, the second filter 62
Embodiment
The below describes embodiments of the invention in detail, and described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment who is described with reference to the drawings, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, orientation or the position relationship of the indication such as term " left side ", " right side " are based on orientation shown in the drawings or position relationship, only be for convenience of description the present invention and simplified characterization, rather than indication or the hint device of indication or element must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".
In the present invention, unless clear and definite regulation and restriction are arranged in addition, broad understanding should be done in the terms such as term " installation ", " linking to each other ", " connection ", " fixing ", for example, can be to be fixedly connected with, and also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can indirectly link to each other by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
Below with reference to the hydraulic gear-shifting control system 10 of Fig. 1-Fig. 4 description according to the double-clutch automatic gearbox of the embodiment of the invention.Such as Fig. 1-shown in Figure 4, comprise according to the hydraulic gear-shifting control system 10 of the double-clutch automatic gearbox of the embodiment of the invention: the first odd number gear shift fork 11, the second odd number gear shift fork 12, the first even number gear shift fork 13, the second even number gear shift fork 14, working connection 20, the first reversing valve assembly 31, the second reversing valve assembly 32, the first modulating valve 41, the second modulating valve 42, the first control valve 51 and the second control valve 52.
Such as Fig. 1-shown in Figure 4, be the seven speed dual clutch automatic transmission according to the double-clutch automatic gearbox of the embodiment of the invention.
1 gear and two gears of 3 gears that the first reversing valve assembly 31 links to each other and is used for the control double-clutch automatic gearbox with the two ends of the first odd number gear shift fork 11 respectively by the first seed oil road 201 and the second seed oil road 202.5 gears and two gears of 7 gears that the first reversing valve assembly 31 links to each other and is used for the control double-clutch automatic gearbox with the two ends of the second odd number gear shift fork 12 respectively by the 3rd seed oil road 203 and the 4th seed oil road 204.2 gears and two gears of 4 gears that the first reversing valve assembly 31 links to each other and is used for the control double-clutch automatic gearbox with the two ends of the first even number gear shift fork 13 respectively by the 5th seed oil road 205 and the 6th seed oil road 206.6 gears and two gears of R gear that the first reversing valve assembly 31 links to each other and is used for the control double-clutch automatic gearbox with the two ends of the second even number gear shift fork 14 respectively by the 7th seed oil road 207 and the 8th seed oil road 208.
In one embodiment of the invention, such as Fig. 1-shown in Figure 4, the first reversing valve assembly 31 can comprise the first selector valve 311 and the second selector valve 312.3 gears, one end that the first selector valve 311 can pass through the first seed oil road 201 and the first odd number gear shift fork 11 link to each other, and the first selector valve 311 can keep off 1 gear and two gears of 3 gears that an end link to each other and be used for the control double-clutch automatic gearbox by 1 of the second seed oil road 202 and the first odd number gear shift fork 11.
The first selector valve 311 can link to each other with 7 gears, one end of the second odd number gear shift fork 12 by the 3rd seed oil road 203, and the first selector valve 311 can link to each other with 5 gears, one end of the second odd number gear shift fork 12 by the 4th seed oil road 204, is used for 5 gears and two gears of 7 gears of control double-clutch automatic gearbox.That is to say, the first selector valve 311 can be controlled 1 gear, 3 gears, 5 gears and four odd number gears of 7 gears gear.
The second selector valve 312 can link to each other with 4 gears, one end of the first even number gear shift fork 13 by the 5th seed oil road 205, and the second selector valve 312 can link to each other with 2 gears, one end of the first even number gear shift fork 13 by the 6th seed oil road 206, is used for 2 gears and two gears of 4 gears of control double-clutch automatic gearbox.
The second selector valve 312 can keep off an end with the R of the second even number gear shift fork 14 by the 7th seed oil road 207 and link to each other, and the second selector valve 312 can link to each other with 6 gears, one end of the second even number gear shift fork 14 by the 8th seed oil road 208, is used for 6 gears and two gears of R gear of control double-clutch automatic gearbox.That is to say the second selector valve 312 controls 2 gears, 4 gears and three even number gear gears of 6 gears and gear that reverses gear of R gear.
The second reversing valve assembly 32 links to each other with the first reversing valve assembly 31 respectively with the 12 seed oil road 212 by the 9th seed oil road 209, the tenth seed oil road 210, the 11 seed oil road 211.
In one embodiment of the invention, such as Fig. 1-shown in Figure 4, the second reversing valve assembly 32 can comprise the 3rd selector valve 321 and the 4th selector valve 322.The 3rd selector valve 321 can link to each other with the first selector valve 311 respectively with the tenth seed oil road 210 by the 9th seed oil road 209.The 4th selector valve 322 can link to each other with the second selector valve 312 respectively with the 12 seed oil road 212 by the 11 seed oil road 211.Wherein, as depicted in figs. 1 and 2, the first selector valve 311 and the second selector valve 312 can be two position switching valves, and have respectively left position and right position.The 3rd selector valve 321 and the 4th selector valve 322 can be two position switching valves, and have respectively left position and right position.
The first end of the first modulating valve 41 links to each other with the second reversing valve assembly 32, the second end of the first modulating valve 41 links to each other with working connection 20 so that the oil with pressure in the working connection 20 is flowed to corresponding oil circuit by the second reversing valve assembly 32, for example flows to the 9th seed oil road 209.
The first end of the second modulating valve 42 links to each other with the second reversing valve assembly 32, the second end of the second modulating valve 42 links to each other with working connection 20 so that the oil with pressure in the working connection 20 is flowed to corresponding oil circuit by the second reversing valve assembly 32, for example flows to the tenth seed oil road 210.
The first control valve 51 and the first reversing valve assembly 31 link to each other to control the first reversing valve assembly 31 and are in the first working state or control the first reversing valve assembly 31 and be in the second working state.
When the first reversing valve assembly 31 is in the first working state, the first seed oil road 201 is communicated with the 9th seed oil road 209, the second seed oil road 202 is communicated with the tenth seed oil road 210, and the 5th seed oil road 205 is communicated with the 11 seed oil road 211, and the 6th seed oil road 206 is communicated with the 12 seed oil road 212.In one embodiment of the invention, as shown in figures 1 and 3, when the first reversing valve assembly 31 was in the first working state, the first selector valve 311 and the second selector valve 312 were in left position simultaneously.
When the first reversing valve assembly 31 is in the second working state, the 3rd seed oil road 203 is communicated with the 9th seed oil road 209, the 4th seed oil road 204 is communicated with the tenth seed oil road 210, and the 7th seed oil road 207 is communicated with the 11 seed oil road 211, and the 8th seed oil road 208 is communicated with the 12 seed oil road 212.In one embodiment of the invention, such as Fig. 2 and shown in Figure 4, when the first reversing valve assembly 31 was in the second working state, the first selector valve 311 and the second selector valve 312 were in right position simultaneously.
The second control valve 52 and the second reversing valve assembly 32 link to each other to control the second reversing valve assembly 32 and are in the 3rd working state or control the second reversing valve assembly 32 and be in the 4th working state.
When the second reversing valve assembly 32 was in the 3rd working state, the first modulating valve 41 was communicated with the 9th seed oil road 209, and the second modulating valve 42 is communicated with the tenth seed oil road 210.That is to say, when the second reversing valve assembly 32 was in the 3rd working state, the first modulating valve 41 was regulated the pressure that enters the 9th seed oil road 209, and the second modulating valve 42 is regulated the pressure that enters the tenth seed oil road 210.In one embodiment of the invention, as depicted in figs. 1 and 2, when the second reversing valve assembly 32 was in the 3rd working state, the 3rd selector valve 321 was in left position, and the second selector valve 312 is in right position.
When the second reversing valve assembly 32 was in the 4th working state, the first modulating valve 41 was communicated with the 11 seed oil road 211, and the second modulating valve 42 is communicated with the 12 seed oil road 212.That is to say, when the second reversing valve assembly 32 was in the 4th working state, the first modulating valve 41 was regulated the pressure that enters the 11 seed oil road 211, and the second modulating valve 42 is regulated the pressure that enters the 12 seed oil road 212.In one embodiment of the invention, as shown in Figure 3 and Figure 4, when the second reversing valve assembly 32 was in the 4th working state, the 3rd selector valve 321 was in right position, and the second selector valve 312 is in left position.
In one embodiment of the invention, such as Fig. 1-shown in Figure 4, be connected with the 13 seed oil road 213 and the 14 seed oil road 214 between the first end of the first modulating valve 41 and the 3rd selector valve 321.That is to say, the first end of the first modulating valve 41 has two terminations, and one of them termination links to each other with the 3rd selector valve 321 by the 13 seed oil road 213, and another termination links to each other with the 3rd selector valve 321 by the 14 seed oil road 214.
Be connected with the 15 seed oil road 215 and the 16 seed oil road 216 between the first end of the second modulating valve 42 and the 4th selector valve 322.That is to say, the first end of the second modulating valve 42 has two terminations, and one of them termination links to each other with the 3rd selector valve 321 by the 15 seed oil road 215, and another termination links to each other with the 3rd selector valve 321 by the 16 seed oil road 216.
Be connected with the 17 seed oil road 217 and the 18 seed oil road 218 between the 3rd selector valve 321 and the 4th selector valve 322.When the second reversing valve assembly 32 was in the 3rd working state, the 3rd selector valve 321 was in left position, and the 4th selector valve 322 is in right position.At this moment, the 18 seed oil road 218 is communicated with the tenth seed oil road 210, and the 13 seed oil road 213 is communicated with the 9th seed oil road 209.
When the second reversing valve assembly 32 was in the 4th working state, the 3rd selector valve 321 was positioned at right position, and the 4th selector valve 322 is in left position.At this moment, the 17 seed oil road 217 is communicated with the 12 seed oil road 212, and the 15 seed oil road 215 is communicated with the 11 seed oil road 211.
Alternatively, the first control valve 51 and the second control valve 52 can be solenoid valve.Further alternatively, the first modulating valve 41 and the second modulating valve 42 can be proportional pressure valve.
Double-clutch automatic gearbox comprises first clutch (scheming not shown), second clutch (scheming not shown) and oil sump (not shown).Oil in the working connection 20 oil with pressure that to be oil pump (not shown)s pump in the oil sump.When first clutch engaged, the hydraulic gear-shifting control system 10 of double-clutch automatic gearbox selected 1 gear, 3 gears, 5 gears or 7 gears to be the output gear according to vehicle actual travel state (for example, the rotating speed of the motor of vehicle, throttle opening, the speed of a motor vehicle etc.).When second clutch engaged, the hydraulic gear-shifting control system 10 of double-clutch automatic gearbox selected 2 gears, 4 gears, 6 gears or R gear to be the output gear according to vehicle actual travel state (for example, the rotating speed of the motor of vehicle, throttle opening, the speed of a motor vehicle etc.).
Below with reference to Fig. 1-Fig. 4 working procedure according to the hydraulic gear-shifting control system 10 of the double-clutch automatic gearbox of the embodiment of the invention is described:
When first clutch engages, according to the actual travel state of vehicle, when vehicle need to travel with 1 gear, the first reversing valve assembly 31 was in the first working state, and the second reversing valve assembly 32 is in the 3rd working state.Particularly, as shown in Figure 1, the first control valve 51 controls the first selector valve 311 is in left position, and the second selector valve 312 also is in left position.The second control valve 52 controls the 3rd selector valve 321 is in left position, and the 4th selector valve 322 is in right position.
From working connection 20 a part of fluid out after the first modulating valve 41 is regulated successively through the 13 seed oil road 213, the 3rd selector valve 321, the 9th seed oil road 209, the first selector valve 311, the first seed oil road 201, enter 3 gears, one end of the first odd number gear shift fork 11; From working connection 20 another part fluid out after the second modulating valve 42 is regulated successively through the 16 seed oil road 216, the 4th selector valve 322, the 18 seed oil road 218, the 3rd selector valve 321, the tenth seed oil road 210, the first selector valve 311, the second seed oil road 202, enter 1 gear, one end of the first odd number gear shift fork 11.
Through the adjusting of the first modulating valve 41 and the second modulating valve 42, the oil pressure of 3 gears, one end of the first odd number gear shift fork 11 is greater than the oil pressure of 1 gear, one end, and vehicle realizes that 1 gear travels.
According to the actual travel state of vehicle, when vehicle need to travel with 3 gears, oil moved towards identical when the trend of oil was travelled with 1 gear with vehicle.Difference only is, through the adjusting of the first modulating valve 41 and the second modulating valve 42, the oil pressure of 3 gears, one end of the first odd number gear shift fork 11 is less than the oil pressure of 1 gear, one end, and vehicle realizes that 3 gears travel.
According to the actual travel state of vehicle, when vehicle need to travel with 5 gears, the first reversing valve assembly 31 was in the second working state, and the second reversing valve assembly 32 is in the 3rd working state.Particularly, as shown in Figure 2, the first control valve 51 controls the first selector valve 311 is in right position, and the second selector valve 312 also is in right position.The second control valve 52 controls the 3rd selector valve 321 is in left position, and the 4th selector valve 322 is in right position.
From working connection 20 a part of fluid out after the first modulating valve 41 is regulated successively through the 13 seed oil road 213, the 3rd selector valve 321, the 9th seed oil road 209, the first selector valve 311, the 3rd seed oil road 203, enter 7 gears, one end of the second odd number gear shift fork 12; From working connection 20 another part fluid out after the second modulating valve 42 is regulated successively through the 16 seed oil road 216, the 4th selector valve 322, the 18 seed oil road 218, the 3rd selector valve 321, the tenth seed oil road 210, the first selector valve 311, the 4th seed oil road 204, enter 5 gears, one end of the second odd number gear shift fork 12.
Through the adjusting of the first modulating valve 41 and the second modulating valve 42, when the oil pressure of 7 gears, one end of the first odd number gear shift fork 11 kept off the oil pressure of an end greater than 5, vehicle realized that 5 gears travel.
According to the actual travel state of vehicle, when vehicle need to travel with 7 gears, fluid moved towards identical when the trend of fluid was travelled with 5 gears with vehicle.Difference only is, through the adjusting of the first modulating valve 41 and the second modulating valve 42, the oil pressure of 7 gears, one end of the first odd number gear shift fork 11 is during less than the oil pressure of 5 gears, one end, and vehicle realizes that 7 gears travel.
When second clutch engages, according to the actual travel state of vehicle, when vehicle need to travel with 2 gears, the first reversing valve assembly 31 was in the first working state, and the second reversing valve assembly 32 is in the 4th working state.Particularly, as shown in Figure 3, the first control valve 51 controls the first selector valve 311 is in left position, and the second selector valve 312 also is in left position.The second control valve 52 controls the 3rd selector valve 321 is in right position, and the 4th selector valve 322 is in left position.
From working connection 20 a part of fluid out after the first modulating valve 41 is regulated successively through the 14 seed oil road 214, the 3rd selector valve 321, the 17 seed oil road 217, the 4th selector valve 322, the 12 seed oil road 212, the second selector valve 312, the 6th seed oil road 206, enter 2 gears, one end of the first even number gear shift fork 13; From working connection 20 another part fluid out after the second modulating valve 42 is regulated successively through the 15 seed oil road 215, the 4th selector valve 322, the 11 seed oil road 211, the second selector valve 312, the 5th seed oil road 205, enter 4 gears, one end of the first even number gear shift fork 13.
Through the adjusting of the first modulating valve 41 and the second modulating valve 42, the oil pressure of 4 gears, one end of the first odd number gear shift fork 11 is greater than the oil pressure of 2 gears, one end, and vehicle realizes that 2 gears travel.
According to the actual travel state of vehicle, when vehicle need to travel with 4 gears, oil moved towards identical when the trend of oil was travelled with 2 gears with vehicle.Difference only is, through the adjusting of the first modulating valve 41 and the second modulating valve 42, the oil pressure of 4 gears, one end of the first even number gear shift fork 13 is less than the oil pressure of 2 gears, one end, and vehicle realizes that 4 gears travel.
According to the actual travel state of vehicle, when vehicle need to travel with 6 gears, the first reversing valve assembly 31 was in the second working state, and the second reversing valve assembly 32 is in the 4th working state.Particularly, as shown in Figure 4, the first control valve 51 controls the first selector valve 311 is in right position, and the second selector valve 312 also is in right position.The second control valve 52 controls the 3rd selector valve 321 is in right position, and the 4th selector valve 322 is in left position.
From working connection 20 a part of fluid out after the first modulating valve 41 is regulated successively through the 14 seed oil road 214, the 3rd selector valve 321, the 17 seed oil road 217, the 4th selector valve 322, the 12 seed oil road 212, the second selector valve 312, the 8th seed oil road 208, enter 6 gears, one end of the second even number gear shift fork 14; From working connection 20 another part fluid out after the second modulating valve 42 is regulated successively through the 15 seed oil road 215, the 4th selector valve 322, the 11 seed oil road 211, the second selector valve 312, the 7th seed oil road 207, the R that enters the second even number gear shift fork 14 keeps off an end.
Through the adjusting of the first modulating valve 41 and the second modulating valve 42, the R of the first even number gear shift fork 13 keeps off the oil pressure of an end greater than the oil pressure of 6 gears, one end, and vehicle realizes that 6 gears travel.
According to the actual travel state of vehicle, when vehicle need to travel with the R gear, fluid moved towards identical when the trend of fluid was travelled with 6 gears with vehicle.Difference only is, through the adjusting of the first modulating valve 41 and the second modulating valve 42, the R of the first even number gear shift fork 13 keeps off the oil pressure of an end less than the oil pressure of 6 gears, one end, and vehicle realizes that the R gear travels.
That common adjusting by the first modulating valve 41 and the second modulating valve 42 realizes according to the realization of each gear of the hydraulic gear-shifting control system 10 of the double-clutch automatic gearbox of the embodiment of the invention.That is to say, the realization of each gear is to realize by the oil pressure in the oil circuit at the two ends of the control shift fork corresponding with this gear.Simultaneously, when the second reversing valve assembly 32 was in the 3rd working state, the hydraulic gear-shifting control system 10 of double-clutch automatic gearbox can realize the control of odd number gear; When the second reversing valve assembly 32 was in the 4th working state, the hydraulic gear-shifting control system 10 of double-clutch automatic gearbox can realize the control of even number gear and the gear that reverses gear.
Further, no matter the second reversing valve assembly 32 is in the 3rd working state or the second reversing valve assembly 32 is in the 4th working state, the 10 same times of hydraulic gear-shifting control system of double-clutch automatic gearbox can only be controlled a shift fork, thereby realized the uniqueness of shift control, played the gear error-disable function.Further, realize the gear error-disable function by the structural design to the first reversing valve assembly 31 and the second reversing valve assembly 32, improved the reliability of hydraulic gear-shifting control system.
In addition, the first control valve 51 controls the first reversing valve assembly 31 switch operating states change the flow direction of oil, the second selector valve 312 controls the second reversing valve assembly 32 switch operating states change the flow direction of oil, thereby reduced the quantity of control valve of the hydraulic gear-shifting control system 10 of double-clutch automatic gearbox, and reduced cost.
Therefore according to the hydraulic gear-shifting control system 10 of the double-clutch automatic gearbox of the embodiment of the invention, the less control valve of usage quantity has realized that switching, the cost between each gear of double-clutch automatic gearbox is low and the gear error-disable function is reliable.
In one embodiment of the invention, the hydraulic gear-shifting control system 10 of double-clutch automatic gearbox can also comprise the first filter 61 and the second filter 62 for filter oil.The first filter 61 can be connected between the second end of working connection 20 and the first modulating valve 41, and the second filter 62 can be connected between the second end of working connection 20 and the second modulating valve 42.Can the oil in the hydraulic gear-shifting control system 10 of double-clutch automatic gearbox be filtered thus, the damage of avoiding the impurity in the oil that the component in the hydraulic gear-shifting control system 10 of double-clutch automatic gearbox are caused, the working life of improving described component.
The present invention also provides a kind of double-clutch automatic gearbox.Described double-clutch automatic gearbox comprises the hydraulic gear-shifting control system 10 of double-clutch automatic gearbox according to the above embodiment of the present invention, thereby has realized switching and gear error-disable function between each gear with low cost, simple structure.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or the example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiments or example.
Although the above has illustrated and has described embodiments of the invention, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art is not in the situation that break away from principle of the present invention and aim can change above-described embodiment within the scope of the invention, modification, replacement and modification.
Claims (8)
1. the hydraulic gear-shifting control system of a double-clutch automatic gearbox is characterized in that, comprising:
The first odd number gear shift fork, the second odd number gear shift fork, the first even number gear shift fork, the second even number gear shift fork and working connection;
The first reversing valve assembly, described the first reversing valve assembly links to each other with described the first odd number gear shift fork respectively by the first and second seed oil roads, and link to each other with described the second odd number gear shift fork respectively by the third and fourth seed oil road, and link to each other with described the first even number gear shift fork respectively with the 6th seed oil road by the 5th, and link to each other with described the second even number gear shift fork respectively with the 8th seed oil road by the 7th;
The second reversing valve assembly, described the second reversing valve assembly links to each other with described the first reversing valve assembly respectively by the 9th to the 12 seed oil road;
The first and second modulating valve, described first with described the second modulating valve in each first end all link to each other with described the second reversing valve assembly and the second end all links to each other with described working connection;
The first control valve, described the first control valve and described the first reversing valve assembly link to each other to control described the first reversing valve assembly and are in the first working state all being communicated with described the 12 seed oil road with the 11 seed oil road and the described the 6th with the tenth seed oil road, the described the 5th with described the 9th seed oil road, described second described first, or control described the first reversing valve assembly and be in the second working state all to be communicated with the 12 seed oil road with the 11 seed oil road, the described the 8th with described the tenth seed oil road, the described the 7th with the 9th seed oil road, the described the 4th the described the 3rd;
The second control valve, described the second control valve and described the second reversing valve assembly link to each other to control described the second reversing valve assembly and are in the 3rd working state so that described the first modulating valve is communicated with described the tenth seed oil road with described the 9th seed oil road, described the second modulating valve, or control the second reversing valve assembly and be in the 4th working state so that described the first modulating valve is communicated with described the 12 seed oil road with described the 11 seed oil road, described the second modulating valve.
2. the hydraulic gear-shifting control system of double-clutch automatic gearbox according to claim 1 is characterized in that, described the first reversing valve assembly comprises the first selector valve and the second selector valve,
Wherein said the first selector valve links to each other with the two ends of described the first odd number gear shift fork respectively with described the second seed oil road by described first, and links to each other with the two ends of described the second odd number gear shift fork respectively with described the 4th seed oil road by the described the 3rd;
Described the second selector valve links to each other with the two ends of described the first even number gear shift fork respectively with described the 6th seed oil road by the described the 5th, and links to each other with the two ends of described the second even number gear shift fork respectively with described the 8th seed oil road by the described the 7th.
3. the hydraulic gear-shifting control system of double-clutch automatic gearbox according to claim 2 is characterized in that, described the second reversing valve assembly comprises the 3rd selector valve and the 4th selector valve,
Wherein said the 3rd selector valve links to each other with described the first selector valve respectively with described the tenth seed oil road by described the 9th seed oil road, and described the 4th selector valve links to each other with described the second selector valve respectively with described the 12 seed oil road by described the 11 seed oil road.
4. the hydraulic gear-shifting control system of double-clutch automatic gearbox according to claim 3 is characterized in that,
Be connected with the 13 and the 14 seed oil road between the first end of described the first modulating valve and described the 3rd selector valve,
Be connected with the 15 and the 16 seed oil road between the first end of described the second modulating valve and described the 4th selector valve,
Be connected with the 17 seed oil road and the 18 seed oil road between described the 3rd selector valve and the 4th selector valve, wherein described the 18 seed oil road is communicated with described the 9th seed oil road with described the tenth seed oil road, described the 13 seed oil road when described the second reversing valve assembly is in the 3rd working state, and described the 17 seed oil road is communicated with described the 11 seed oil road with described the 12 seed oil road, described the 15 seed oil road when described the second reversing valve assembly is in the 4th working state.
5. the hydraulic gear-shifting control system of double-clutch automatic gearbox according to claim 1 is characterized in that, described the first control valve and described the second control valve are solenoid valve.
6. the hydraulic gear-shifting control system of double-clutch automatic gearbox according to claim 1 is characterized in that, described the first modulating valve and described the second modulating valve are proportional pressure valve.
7. the hydraulic gear-shifting control system of double-clutch automatic gearbox according to claim 1, it is characterized in that, also comprise: the first filter and the second filter that are used for filtering fluid, described the first filter is connected between the second end of described working connection and described the first modulating valve, and described the second filter is connected between the second end of described working connection and described the second modulating valve.
8. a double-clutch automatic gearbox is characterized in that, comprises according to claim 1 the hydraulic gear-shifting control system of each described double-clutch automatic gearbox in-7.
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| CN201310326926.5A CN103363101B (en) | 2013-07-30 | 2013-07-30 | Double-clutch automatic gearbox and hydraulic gear-shifting control system thereof |
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| CN201310326926.5A CN103363101B (en) | 2013-07-30 | 2013-07-30 | Double-clutch automatic gearbox and hydraulic gear-shifting control system thereof |
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| CN103363101B CN103363101B (en) | 2015-11-18 |
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| CN104534083A (en) * | 2014-12-24 | 2015-04-22 | 重庆青山工业有限责任公司 | Hydraulic system for gear shifting of double-clutch transmission |
| CN105299213A (en) * | 2015-11-11 | 2016-02-03 | 安徽江淮汽车股份有限公司 | Oil pre-charging system of dual-clutch automatic transmission |
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| CN105673836A (en) * | 2014-11-18 | 2016-06-15 | 广州汽车集团股份有限公司 | Gear shifting control system for automatic speed changer |
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| EP3222889A4 (en) * | 2014-11-18 | 2018-06-20 | Guangzhou Automobile Group Co. Ltd. | Gear-shifting control system of automatic transmission |
| CN109296748A (en) * | 2018-11-29 | 2019-02-01 | 重庆青山工业有限责任公司 | Hydraulic system is used in a kind of shift of dual-clutch transmission |
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| CN104534083A (en) * | 2014-12-24 | 2015-04-22 | 重庆青山工业有限责任公司 | Hydraulic system for gear shifting of double-clutch transmission |
| CN105299213A (en) * | 2015-11-11 | 2016-02-03 | 安徽江淮汽车股份有限公司 | Oil pre-charging system of dual-clutch automatic transmission |
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Effective date of registration: 20191113 Address after: 071000 No.75, Dongsheng Road, Lianchi District, Baoding City, Hebei Province Patentee after: Beehive transmission technology Hebei Co.,Ltd. Address before: 071000 No. 2266 Chaoyang South Street, Hebei, Baoding Patentee before: GREAT WALL MOTOR Co.,Ltd. |
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