CN102330759B - Hydraulic system and hybrid power vehicle comprising same - Google Patents
Hydraulic system and hybrid power vehicle comprising same Download PDFInfo
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- CN102330759B CN102330759B CN 201010224814 CN201010224814A CN102330759B CN 102330759 B CN102330759 B CN 102330759B CN 201010224814 CN201010224814 CN 201010224814 CN 201010224814 A CN201010224814 A CN 201010224814A CN 102330759 B CN102330759 B CN 102330759B
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- 230000033001 locomotion Effects 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 15
- 239000003921 oil Substances 0.000 claims description 118
- 239000010720 hydraulic oil Substances 0.000 claims description 56
- 230000005540 biological transmission Effects 0.000 claims description 37
- 238000000034 method Methods 0.000 claims description 16
- 238000010992 reflux Methods 0.000 claims description 11
- 239000013618 particulate matter Substances 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 2
- 239000003638 chemical reducing agent Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The invention relates to a hydraulic system, which comprises an overall proportional pressure valve, a first proportional pressure valve, a second proportional pressure valve and a third proportional pressure valve, wherein the first proportional pressure valve is combined with the overall proportional pressure valve for controlling the movement of a piston arranged in a first clutch control oil cylinder communicated with the fluid of the first proportional pressure valve, so the disconnected/connected state of a first clutch connected with the first clutch control oil cylinder is controlled; the second proportional pressure valve is combined with the overall proportional pressure valve for controlling the movement of a piston arranged in a second clutch control oil cylinder communicated with the fluid of the second proportional pressure valve, so the disconnected/connected state of a second clutch connected with the second clutch control oil cylinder is controlled; and the third proportional pressure valve is combined with the overall proportional pressure valve for controlling the movement of a piston arranged in a synchronizer control oil cylinder communicated with the fluid of the third proportional pressure valve, so the position of a synchronizer connected with the synchronizer control oil cylinder is controlled, and finally, the switching and combination between different motive power sources and the switching between gears of a hybrid power vehicle are realized.
Description
[technical field]
The present invention relates to hydraulic system.Particularly, the present invention relates to for a plurality of clutches of handling hybrid vehicle transmission and the hydraulic system of synchronizer.
[background technique]
Vehicle has also brought " energy consumption, environmental pollution " two large problems when offering convenience to people.Each large vehicle manufacturer has released respectively the motor vehicle driven by mixed power of the internal-combustion engine conjunction with motor of energy-conservation and environmental protection for this reason.For example, AM General vehicle company has released Chevrolet VOLT motor vehicle driven by mixed power, and BYD company has released F3DM type motor vehicle driven by mixed power.This class motor vehicle driven by mixed power is also referred to as plug-in hybrid vehicle.The mixed power of plug-in hybrid vehicle mainly is comprised of relatively little motor and one or two motors of discharge capacity, wherein motor is responsible for realizing that pure electric-powered output and braking energy reclaim when electrokinetic cell energy and power ratio are higher generally speaking, when electrokinetic cell energy and power drop to a predefined value, realize engine start, generate electricity or participate in the function such as motivational drive directly by motor.
In the prior art, the drive system of above-mentioned plug-in hybrid vehicle has multiple-working mode.For example its drive system can be operated in electric-only mode, this moment only motor as the power source of transmission system; It also can be operated under the series model, and this moment, motor and integrated actuating electric generator provided electric energy, and only motor is as the power source of transmission system; It can also be operated under the paralleling model in addition, and this moment, motor and motor were jointly as the power source of transmission system.Plug-in hybrid vehicle has the power source of mixing, thereby its transmission system need to have the transmission system that is connected with motor with motor and integrated actuating electric generator, this transmission system comprises the first clutch that is connected with motor and integrated actuating electric generator, the second clutch that is connected with motor, and the synchronizer that is used for gearshift that is connected with the first and second clutches.
The transmission system of plug-in hybrid vehicle need have the hydraulic system that adapts with it with the complex work mode operation, namely needs a kind ofly can handle a plurality of clutches of having in the transmission system that complicated machinery arranges and the hydraulic system of synchronizer.
[summary of the invention]
The purpose of this invention is to provide and a kind ofly can handle a plurality of clutches of having in the hybrid vehicle transmission that complicated machinery arranges and the hydraulic system of synchronizer.
Purpose of the present invention is achieved by the following technical programs.Particularly, a technological scheme of the present invention provides a kind of hydraulic system, and it comprises: the first in-line that is connected with accumulator with oil groove respectively, and wherein accumulator is arranged on the oil groove downstream along the first in-line, is used for storage from the hydraulic oil of oil groove; Be arranged on the toatl proportion pressure valve in accumulator downstream along the first in-line, be used for flow through its pressure of integrally control, and provide feedback by pressure transducer to the HYDRAULIC CONTROL SYSTEM unit; The first proportional pressure valve that is connected in parallel to each other and connects with the toatl proportion pressure valve, the second proportional pressure valve and the 3rd proportional pressure valve, the movement of the piston of the first clutch control oil cylinder of the first proportional pressure valve associating toatl proportion pressure valve control series connection with it, thereby the clutch state to the first clutch that is connected with first clutch control oil cylinder is controlled, and provides feedback by pressure transducer to the HYDRAULIC CONTROL SYSTEM unit; The movement of the piston in the second clutch control oil cylinder of the second proportional pressure valve associating toatl proportion pressure valve control series connection with it, thereby the clutch state to the second clutch that is connected with second clutch control oil cylinder is controlled, and provides feedback by pressure transducer to the HYDRAULIC CONTROL SYSTEM unit; The movement of the piston in the synchronizer control oil cylinder of the 3rd proportional pressure valve associating toatl proportion pressure valve control passing ratio Flow valve series connection with it, and provide feedback by pressure transducer and position transducer to the HYDRAULIC CONTROL SYSTEM unit, the 3rd proportional pressure valve the first ratio pressure and the second proportional pressure valve to Clutch Control operation of oil cylinde process separately in so that the pressure of synchronizer control oil cylinder keeps stable, thereby realize stable control to the position of the synchronizer that is connected with synchronizer control oil cylinder; And with the return line of the first in-line tandem, return line be used for to be accepted the hydraulic oil of the accumulator, toatl proportion pressure valve, the first proportional pressure valve, the second proportional pressure valve and the 3rd proportional pressure valve that are communicated with its fluid, and hydraulic oil wherein is back in the oil groove.
According to technique scheme, wherein between toatl proportion pressure valve and accumulator tie point and oil groove, be provided with at least one first filter and at least one second filter, wherein at least one second filter is arranged on the downstream of at least one the first filter, the size of the particulate matter in the hydraulic oil that the size of the particulate matter in the hydraulic oil that at least one second filter allows to pass through allows to pass through less than at least one first filter.
According to technique scheme, wherein between at least one first filter and at least one the second filter, be provided with the oil hydraulic pump that is driven by motor, oil hydraulic pump out passes through at least one first filter and at least one second filter with hydraulic oil successively from the oil groove pumping, thereby so that enters accumulator or flow through the toatl proportion pressure valve by one-way valve through the hydraulic oil of double filtration.
According to technique scheme, wherein hydraulic system also comprises the pressure-relief valve that is communicated with the first in-line and return line fluid, with the pressure of the hydraulic oil in convenient the first in-line during greater than the first pressure threshold of setting, so that pressure-relief valve is opened, thereby the hydraulic oil in the first in-line is discharged in the return line, and then so that hydraulic oil be back in the oil groove.
According to technique scheme, wherein when the pressure of accumulator place hydraulic oil during less than the second pressure threshold of setting, the running of the control unit control motor of hydraulic system is in order to be pumped into the hydraulic oil of the expectation oil hydraulic pump by motor driving in the accumulator.
According to technique scheme, wherein hydraulic system also comprises the valve of safeguarding that is communicated with the first in-line and return line fluid, when breaking down with convenient hydraulic system, by safeguarding that valve makes the hydraulic oil in the first in-line be discharged into return line, thereby under atmospheric pressure realize the maintenance to hydraulic system.
According to technique scheme, wherein synchronizer control oil cylinder is can two-way oil-filled and mobile piston cylinder.
According to technique scheme, wherein at the first proportional pressure valve and the second proportional pressure valve when it breaks down, hydraulic oil in first clutch control oil cylinder and the second clutch control oil cylinder is back in the first in-line by the preparation pipeline that is provided with one-way valve that the hydraulic oil in supplying separately passes through respectively, and then is back in the return line by the toatl proportion pressure valve.
According to technique scheme, wherein toatl proportion pressure valve, the first proportional pressure valve, the second proportional pressure valve and the 3rd proportional pressure valve are the solenoid valve of two-bit triplet, they include inlet opening, delivery outlet and refluxing opening separately, and wherein their refluxing opening all is connected in return line; The inlet opening of toatl proportion pressure valve is connected in accumulator and oil groove; The inlet opening of the first proportional pressure valve, the second proportional pressure valve and the 3rd proportional pressure valve is connected in the delivery outlet of toatl proportion pressure valve with parallel way; The delivery outlet of the first proportional pressure valve is connected in first clutch control oil cylinder; The delivery outlet of the second proportional pressure valve is connected in second clutch control oil cylinder; The delivery outlet passing ratio Flow valve of the 3rd proportional pressure valve is connected in synchronizer control oil cylinder, and synchronizer control oil cylinder both sides arrange different piston areas.
According to technique scheme, wherein the toatl proportion pressure valve can be safety valve.
According to technique scheme, wherein pressure transducer be arranged between the first proportional pressure valve and the first clutch control oil cylinder, between the second proportional pressure valve and the second clutch control oil cylinder and proportional flow control valve control between the oil cylinder with synchronizer, position transducer is arranged on synchronizer and controls between oil cylinder and the synchronizer.
An again technological scheme of the present invention provides a kind of motor vehicle driven by mixed power that comprises above-mentioned hydraulic system, wherein the transmission system of motor vehicle driven by mixed power comprises the first clutch that is connected with integrated actuating electric generator with motor, the second clutch that is connected with drive motor, carry out the synchronizer that gear is selected by transmission shaft and gear mechanism, hybrid vehicle transmission is used for vehicle power is sent to wheel, wherein the position of the clutch state of the first clutch of motor vehicle driven by mixed power and second clutch and synchronizer is controlled by described hydraulic system, thereby realizes the level and smooth gearshift of motor vehicle driven by mixed power.
Benefit of the present invention is: the mode owing to adoption rate pressure valve in this hydraulic system and one-way valve combination, guaranteed when automobile hydraulic system breaks down, and motor vehicle driven by mixed power can normally travel, and guarantees vehicle and user's Security.
Benefit of the present invention is: the toatl proportion pressure valve can realize the adjusting to pressure in the first in-line, thereby can reduce the leakage of subsequent element in the hydraulic system, and the toatl proportion pressure valve can be used as safety valve and guarantees security of system in addition.
Benefit of the present invention also is: a plurality of filter joint work, guarantee through the cleanliness of hydraulic oil of each valve (such as one-way valve, proportional pressure valve etc.) in the hydraulic system pollution-freely, and guaranteed the function of each valve of hydraulic system.In addition multi-filtering also guaranteed to enter other elements in the hydraulic system and lubrication system hydraulic oil through filtering, guaranteed the function of each element.
Benefit of the present invention also is: by usage ratio pressure valve and proportional flow control valve, realization is to the control of synchronizer control oil cylinder, and then realization realizes (the stably motion of good motion controllability to the stable control of synchronizer, impact and noise without combination), thus realize smooth-going gear shift.
Benefit of the present invention also is: this hydraulic system being provided with is safeguarded valve, in order to the hydraulic oil in the first in-line can be discharged in the return line when safeguarding, thereby has protected each element in the system.
[description of drawings]
With reference to accompanying drawing, disclosure of the present invention will be easier to understand.Those skilled in the art easily are understood that: these accompanying drawings only are used for the purpose of explanation, and are not to be intended to protection scope of the present invention is construed as limiting.Among the figure:
Fig. 1 shows the structural representation according to the transmission system of the two clutch synchronization devices gearshift of motor vehicle driven by mixed power of the present invention.
Fig. 2 shows the structural representation for the hydraulic system of the transmission system of the two clutch synchronization devices gearshift of the motor vehicle driven by mixed power of Fig. 1.
Parts and label list
| 1 | Motor |
| 2 | |
| 3 | Integrated actuating electric generator |
| 4 | Differential mechanism |
| 5 | Transmission shaft (main shaft) |
| 6 | First clutch |
| 7 | Second clutch |
| 8 | Synchronizer |
| 9 | The |
| 10 | The |
| 20 | |
| 100 | |
| 102 | The |
| 104 | Oil |
| 106 | |
| 108 | The |
| 110 | The first one- |
| 112 | |
| 114 | Pressure- |
| 116 | Safeguard |
| 118 | The toatl |
| 120 | The first |
| 122 | First clutch |
| 124 | The second one- |
| 126 | The second |
| 128 | The 3rd one- |
| 130 | Second clutch |
| 132 | The 3rd |
| 134 | Proportional |
| 136 | Synchronizer control oil cylinder |
| 200 | The first in- |
| 202 | |
| 204 | The first connecting |
| 206 | The second connecting |
| 208 | The 3rd connecting |
| 210 | The 4th connecting |
| 212 | The 5th connecting |
| 214 | The 6th connecting |
| 216 | The 7th connecting |
| 218 | The 8th connecting |
| 220 | The 9th connecting |
| 222 | The tenth connecting pipeline |
[embodiment]
Fig. 1-2 and following declarative description specific embodiment of the present invention with the instruction those skilled in the art how to make and use optimal mode of the present invention.In order to instruct inventive principle, simplified or omitted some conventional aspects.Those skilled in the art should understand that the modification that is derived from these embodiments falls within the scope of the invention.Those skilled in the art should understand that in every way combination of following characteristics is to form a plurality of modification of the present invention.Thus, the present invention is not limited to following specific embodiment, and is only limited by claim and their equivalent.
Fig. 1 shows the structural representation according to the transmission system of the two clutch synchronization devices gearshift of motor vehicle driven by mixed power of the present invention.The transmission system of motor vehicle driven by mixed power as shown in Figure 1 comprises: are connected the first clutch 6 that is connected, the second clutch 7 that is connected with drive motor 2, transmission shaft (being main shaft) the 5, first speed reducer 9, the second speed reducer 10 and synchronizer 8 with integrated actuating electric generator with motor 1.Transmission system by differential mechanism 4 with power transmission to wheel 20.According to a preferred embodiment of the present invention, first clutch 6 is normally open clutch in the transmission system of the motor vehicle driven by mixed power among Fig. 1; Second clutch 7 is the Normally closed type clutch; Synchronizer 8 can slide at main shaft 5, and carries out gear by main shaft 5 and gear mechanism (such as first order speed reducer 9 etc.) and select, and main shaft 5 connects first order speed reducer 9 or second level speed reducer 10 by synchronizer 8.First order speed reducer 9 or second level speed reducer 10 connected with differentials 4, hybrid vehicle transmission transmits power by differential mechanism 4 to wheel 20.For the transmission system according to the present embodiment, those skilled in the art easily are understood that: the transmission system of the two clutch synchronization devices combination gearshift of motor vehicle driven by mixed power can turn round under multiple-working mode, can realize non-power gear shifting function when it switches gear.The synchronization combining of first clutch 6 and second clutch 7 and synchronizer 8 control when guaranteeing gearshift.
Fig. 2 shows a plurality of clutches in the transmission system and the hydraulic system of synchronizer in the control diagram 1.This hydraulic system comprises: oil groove 100, the first filter 102, oil hydraulic pump 104, motor 106, the second filter 108, the first one-way valve 110, accumulator 112, pressure-relief valve 114, safeguard valve 116, toatl proportion pressure valve 118, the first proportional pressure valve 120, first clutch control oil cylinder 122, the second one-way valve 124, the second proportional pressure valve 126, the 3rd one-way valve 128, second clutch control oil cylinder 130, the 3rd proportional pressure valve 132, proportional flow control valve 134, synchronizer control oil cylinder 136, the first in-line 200, a plurality of connecting pipeline 204-222, high pressure discharge pipe 202, a plurality of sensors, control wiring and drive system control unit.Wherein oil groove 100 is used for the storage liquid force feed, the first filter 102 is arranged on the downstream of oil groove 100 along the first in-line 200, oil hydraulic pump 104 is arranged on the downstream of the first filter 102 along the first in-line 200, thereby motor 106 be used for driving oil hydraulic pump 104 with hydraulic oil from from oil groove 100 pumping out, the second filter 108 is arranged on the downstream of oil hydraulic pump 104 along the first in-line 200, the first one-way valve 110 is arranged on the downstream of the second filter 108 along the first in-line 200, toatl proportion pressure valve 118 is arranged on the downstream of the first one-way valve 110 along the first in-line 200, the 3rd proportional pressure valve 132 is arranged on the downstream of toatl proportion pressure valve 118 along the first in-line 200.Wherein motor 106 is step controllable motor.The first filter 102 is fit to larger particulate matter in the filtered fluid force feed, and the second filter 108 is fit to less particulate matter in the filtered fluid force feed, that is: the first filter (102) is strainer, and the second filter (108) is secondary filter, and the size of particulate matter is less than the size of particulate matter in the hydraulic oil of the first filter 102 filtrations in the hydraulic oil that the second filter 108 filters.Need to prove: according to the enlightenment of above-described embodiment; those skilled in the art easily are understood that the needs according to hydraulic system; the first more than one filter and the second filter with other filter capacities also can be set, and this will drop in protection scope of the present invention also.
As shown in Figure 2, the first connecting pipeline 204 is arranged between the first one-way valve 110 and the toatl proportion pressure valve 118 along the first in-line 200, and is communicated with accumulator 112; One end of the second connecting pipeline 206 and the 3rd connecting pipeline 208 is arranged in parallel between the first one-way valve 110 and toatl proportion pressure valve 118 along the first in-line 200, the other end of the second connecting pipeline 206 and the 3rd connecting pipeline 208 is arranged on the return line 202, wherein pressure-relief valve 114 is arranged on the second connecting pipeline 206, safeguard that valve 116 is arranged on the 3rd connecting pipeline 208, wherein pressure-relief valve 114 is opened when the pressure of the hydraulic oil in the first in-line 200 surpasses the first predetermined pressure threshold, thereby so that the hydraulic oil in accumulator 112 and/or the first in-line 200 is back in the return line 202 by connecting pipeline 206 and 208, return line 202 between oil hydraulic pump 104 and the first filter 102 tandem in the first in-line 200, this so that in the return line 202 hydraulic oil finally can be back in the oil groove 100.Safeguard when valve 116 is only in maintenance and during safeguarding just to be opened, thereby so that the hydraulic oil in the first in-line 200 be back in the return line 202.
As shown in Figure 2, the 4th connecting pipeline 210 and the 5th connecting pipeline 212 are successively set between toatl proportion pressure valve 118 and the 3rd proportional pressure valve 132 along the first in-line 200.The first proportional pressure valve 120 is arranged on the 4th connecting pipeline 210, the 4th connecting pipeline 210 and first clutch control oil cylinder 122 fluids are communicated with, and first clutch is controlled oil cylinder 122 and connected (not shown in the drawings they between connecting mode) with first clutch 6.The second proportional pressure valve 126 is arranged on the 5th connecting pipeline 212, the 5th connecting pipeline 212 and second clutch control oil cylinder 130 is connected, and second clutch is controlled oil cylinder 130 and connected (not shown in the drawings they between connecting mode) with second clutch 7.As shown in Figure 2, toatl proportion pressure valve 118, the first proportional pressure valve 120, the second proportional pressure valve 126 and the 3rd proportional pressure valve 132 are two-position three-way valve, and they include inlet opening, delivery outlet and refluxing opening.The inlet opening of these Proportional valves all is connected on the first in-line 200, and the refluxing opening of toatl proportion pressure valve 118, the first proportional pressure valve 120 and the second proportional pressure valve 126 is connected on the return line 202 by the 8th connecting pipeline 218, the 9th connecting pipeline 220 and the tenth connecting pipeline 222 respectively, and the refluxing opening of the 3rd proportional pressure valve 132 directly is connected on the return line 202.These Proportional valves are the proportional pressure valve of band feedback.Toatl proportion pressure valve 118 is used for the hydraulic oil of accumulator 112 and the first in-line 200 is adjusted to from higher pressure the lower pressure of the downstream workpiece needs of the first in-line 200; in addition when the first proportional pressure valve 120 and 126 inefficacy of the second proportional pressure valve; toatl proportion pressure valve 118 enters safety protection pattern (SV); its refluxing opening is opened, thereby so that the hydraulic oil in the first in-line 200 be back in the return line 202.Need to prove: toatl proportion pressure valve 118 can replace with the cheap a little safety valve of price.Hydraulic oil is to the pressure of the first clutch control oil cylinder 122 that is connected to first clutch 6 in the first proportional pressure valve 120 further adjusting the first in-lines 200.Hydraulic oil is to the pressure of the second clutch control oil cylinder 130 that is connected to second clutch 7 in the second proportional pressure valve 126 further adjusting the first in-lines 200.The 3rd proportional pressure valve 132, toatl proportion pressure valve 118 and proportional flow control valve 134 joint work control to pressure and the flow of synchronizer control oil cylinder 136, the 3rd proportional pressure valve 132 also has pressure stabilization function, the 3rd proportional pressure valve 132 keeps stable so that synchronizer is controlled the pressure of oil cylinder 136 in the first proportional pressure valve 120 and 126 pairs of Clutch Control operation of oil cylinde processes separately of the second proportional pressure valve, thereby so that synchronizer control oil cylinder 136 can stable operation, then so that (not shown in the drawings they between connecting mode) that connects with synchronizer control oil cylinder 136 synchronizer 8 can be worked reposefully, thereby the level and smooth gearshift of realization transmission system.Need to prove: those skilled in the art's enlightenment according to the present invention easily is understood that: the present invention can adopt the solenoid valve of other kinds to replace proportional pressure valve, and this also will drop in protection scope of the present invention.
Below will elaborate the working principle of first clutch 6 and second clutch 7 in the hydraulic system.Piston in the first clutch control oil cylinder 122 moves forward under the effect of hydraulic oil, so that first clutch 6 combinations, and mobile backward under the effect of the piston return spring therein in the first clutch control oil cylinder 122, so that first clutch 6 separates.Usually, separate and in the situation that the first proportional pressure valve 120 can work, the hydraulic oil in the first clutch 6 is back in the return line 202 by the refluxing opening of the first proportional pressure valve 120 when first clutch 6; And when the first proportional pressure valve 120 breaks down, hydraulic oil in the first clutch control oil cylinder 122 are back in the first in-line 200 by the 6th connecting pipeline 214, and and then the refluxing opening by toatl proportion pressure valve 118 be back in the return line 202.Piston in the second clutch control oil cylinder 130 is mobile backward under the effect at hydraulic oil, so that second clutch 7 separates, and move forward under the effect of the piston return spring therein in the second clutch control oil cylinder 130, so that second clutch 7 combinations.Because second clutch is the Normally closed type clutch, when second clutch 7 in conjunction with the time, the second proportional pressure valve 126 is in the valve port closed condition; And when the second proportional pressure valve 126 broke down, the hydraulic oil in the second clutch control oil cylinder 130 was back in the first in-line 200 by the 7th connecting pipeline 216, and and then the refluxing opening by toatl proportion pressure valve 118 flow into return line 202.Wherein first, second and the 3rd one-way valve are used for the flow direction of control hydraulic system hydraulic oil.
The delivery outlet of the 3rd proportional pressure valve 132 as shown in Figure 2 is connected with the inlet opening of proportional flow control valve 134, the delivery outlet of proportional flow control valve 134 connects with synchronizer control oil cylinder 136, the both sides of synchronizer control oil cylinder 136 arrange different piston areas, synchronizer control oil cylinder 136 connects (not shown in the drawings they between connecting mode) with synchronizer 8, the 3rd proportional pressure valve 132 is in conjunction with the position of proportional flow control valve 134 control synchroes 8, so that synchronizer 8 is on the position of neutral, a grade and second gear.Need to prove: according to as shown in Figure 2 embodiment's enlightenment, it will be understood by those skilled in the art that synchronizer 8 also can be in other gears except neutral, a grade and second gear, and this will drop in protection scope of the present invention also.
As shown in Figure 2, pressure-relief valve 114 with safeguard on the connecting pipeline of valve 116, toatl proportion pressure valve 118, the first proportional pressure valve 120, the second proportional pressure valve 126, the 3rd proportional pressure valve 132, proportional flow control valve 134 and with first clutch control oil cylinder 122, second clutch control oil cylinder 130 and with connecting pipeline that synchronizer control oil cylinder 136 fluids are communicated with on be provided with pressure transducer P/E, and also be provided with the position transducer U/E for the position of sensing synchronizer 8 on synchronizer control oil cylinder 136 and the pipeline that synchronizer 8 is connected, these pressure transducers gather the pressure signal on each valve or each pipeline and send these pressure signals to the HYDRAULIC CONTROL SYSTEM unit, and position transducer U/E gathers the position signal of synchronizer 8 and sends position signal to the HYDRAULIC CONTROL SYSTEM unit, communicates by letter with the car load control unit by the CAN bus in the HYDRAULIC CONTROL SYSTEM unit.In addition, when the pressure at accumulator place during less than the second pressure threshold of setting, the running of the control unit control motor of hydraulic system is in order to be pumped into the hydraulic oil of expectation in the hydraulic system by the oil hydraulic pump that motor 106 drives.Need to prove: the first pressure threshold is greater than the second pressure threshold.The HYDRAULIC CONTROL SYSTEM unit is according to the working state of the transmission system of two clutch synchronization devices gearshift, transmit control signal to motor, oil hydraulic pump and each valve of hydraulic system, thereby the movement of piston in control first clutch control oil cylinder 122, second clutch control oil cylinder 130 and the synchronizer control oil cylinder 136 is so that control first clutch 6 and the clutch state of second clutch 7 and the position of synchronizer 8.Particularly, the HYDRAULIC CONTROL SYSTEM unit is according to the working state of transmission system and gather the pressure signal that comes and can realize control to the clutch state of clutch, and can realize accurate control to the synchronizer position according to working state, pressure signal and the position signal of transmission system.The HYDRAULIC CONTROL SYSTEM unit adopts step controllable motor, cooperates accumulator and plus signal feedback to realize, has realized the closed loop control of whole system, has reached simultaneously energy-saving effect.The HYDRAULIC CONTROL SYSTEM unit by in Comparative Examples pressure valve and the shift process to the regulation and control of motor, realize the adjusting to the Operating torque in the clutch working procedure, thereby realize smooth-going gearshift.
Need to prove: for the transmission system of certain preferred embodiment of the present invention, it also comprises second in-line that need to carry out to synchronizer 8, the first speed reducer 9 and the second speed reducer 10 Cooling and Lubricator.Not shown this second in-line in hydraulic system of the present invention.But be understood that easily that to those skilled in the art the first in-line and the second in-line can adopt same oil.Need to prove, the first in-line and the second in-line also can adopt non-oil of the same race.In the above embodiment of the present invention, the first in-line is pressure duct, and the second in-line is low pressure line, and the pressure of hydraulic oil is greater than the pressure of hydraulic oil in the second in-line in the first in-line.
The invention provides a kind of motor vehicle driven by mixed power that comprises above-mentioned hydraulic system, wherein the transmission system of motor vehicle driven by mixed power comprises the first clutch that is connected with power source and second clutch, carries out the synchronizer that gear is selected by transmission shaft and gear mechanism, hybrid vehicle transmission is used for vehicle power is sent to wheel, wherein the position of the clutch state of the first clutch of motor vehicle driven by mixed power and second clutch and synchronizer is controlled by described hydraulic system, thereby realizes the level and smooth gearshift of motor vehicle driven by mixed power.
Need to prove, those skilled in the art can also carry out many variants to hydraulic system according to the enlightenment of above-mentioned preferential embodiment.For example one of them variant provides a kind of hydraulic system, it comprises: the toatl proportion pressure valve, be connected with oil groove with accumulator by the first in-line, be used for flow through its pressure of integrally control, and provide feedback by pressure transducer to the HYDRAULIC CONTROL SYSTEM unit; At least two proportional pressure valves that are connected in parallel to each other and connect with the toatl proportion pressure valve, the wherein movement of the piston in the Clutch Control oil cylinder of one of them proportional pressure valve control series connection with it at least two proportional pressure valves, thereby the clutch state to the clutch that is connected with the Clutch Control oil cylinder is controlled, and to providing feedback by pressure transducer to the HYDRAULIC CONTROL SYSTEM unit; The movement of the piston in the synchronizer control oil cylinder of another proportional pressure valve associating toatl proportion pressure valve control passing ratio Flow valve series connection with it at least two proportional pressure valves, thereby the position to the synchronizer that is connected with synchronizer control oil cylinder is controlled, and provides feedback by pressure transducer and position transducer to the HYDRAULIC CONTROL SYSTEM unit; And with the return line of the first in-line tandem, the hydraulic oil of the accumulator that return line is used for accepting being communicated with its fluid, toatl proportion pressure valve, at least two proportional pressure valves, and hydraulic oil wherein is back in the oil groove.Those skilled in the art are understood that easily above-mentioned variant also will drop in protection scope of the present invention.
Benefit of the present invention is: the mode owing to adoption rate pressure valve in this hydraulic system and one-way valve combination, guaranteed when automobile hydraulic system breaks down, and motor vehicle driven by mixed power can normally travel, and guarantees vehicle and user's Security.
Benefit of the present invention is: the toatl proportion pressure valve can realize the adjusting to hydraulic fluid pressure in the first in-line, thereby can reduce the leakage of subsequent element in the hydraulic system, and the toatl proportion pressure valve can be used as safety valve and guarantees security of system in addition.
Benefit of the present invention also is: a plurality of filter joint work, guarantee the oily cleanliness without any pollution through each valve of hydraulic system (such as proportional pressure valve, one-way valve etc.), and guaranteed the function of each valve of hydraulic system.In addition multi-filtering also guaranteed to enter other elements in the hydraulic system and lubrication system hydraulic oil through filtering, guaranteed the function of each element and lubrication system.
Benefit of the present invention also is: by usage ratio pressure valve and proportional flow control valve, realization is to the control of synchronizer control oil cylinder, and then realization realizes (the stably motion of good motion controllability to the stable control of synchronizer, impact and noise without combination), thus realize smooth-going gear shift.
Benefit of the present invention also is: this hydraulic system being provided with is safeguarded valve, in order to the hydraulic oil in the first in-line can be discharged in the return line when safeguarding, thereby has protected each element in the system.
Claims (12)
1. hydraulic system comprises:
The first in-line that is connected with accumulator with oil groove respectively, wherein said accumulator is arranged on described oil groove downstream along described the first in-line, is used for storage from the hydraulic oil of described oil groove;
It is characterized in that, be arranged on the toatl proportion pressure valve in described accumulator downstream along described the first in-line, be used for flow through its pressure of integrally control, and provide feedback by pressure transducer to the HYDRAULIC CONTROL SYSTEM unit;
The first proportional pressure valve, the second proportional pressure valve and the 3rd proportional pressure valve that are connected in parallel to each other and connect with described toatl proportion pressure valve,
Described the first proportional pressure valve is united described toatl proportion pressure valve and is controlled the movement that the first clutch of series connection with it is controlled the piston of oil cylinder, thereby the clutch state to the first clutch that is connected with described first clutch control oil cylinder is controlled, and provides feedback by pressure transducer to the HYDRAULIC CONTROL SYSTEM unit;
Described the second proportional pressure valve is united the movement that described toatl proportion pressure valve is controlled the piston in the second clutch control oil cylinder of series connection with it, thereby the clutch state to the second clutch that is connected with described second clutch control oil cylinder is controlled, and provides feedback by pressure transducer to the HYDRAULIC CONTROL SYSTEM unit;
Described the 3rd proportional pressure valve is united the movement that described toatl proportion pressure valve is controlled the piston in the synchronizer control oil cylinder of passing ratio Flow valve series connection with it, and provide feedback by pressure transducer and position transducer to described HYDRAULIC CONTROL SYSTEM unit, described the 3rd proportional pressure valve described the first proportional pressure valve and described the second proportional pressure valve to Clutch Control operation of oil cylinde process separately in so that the pressure of described synchronizer control oil cylinder keeps stable, thereby realize stable control to the position of the synchronizer that is connected with described synchronizer control oil cylinder; And
Return line with described the first in-line tandem, described return line be used for to be accepted the described hydraulic oil of the described accumulator, described toatl proportion pressure valve, described the first proportional pressure valve, described the second proportional pressure valve and described the 3rd proportional pressure valve that are communicated with its fluid, and described hydraulic oil wherein is back in the described oil groove.
2. hydraulic system as claimed in claim 1, it is characterized in that, between described toatl proportion pressure valve and described accumulator tie point and described oil groove, be provided with at least one first filter and at least one second filter, wherein said at least one second filter is arranged on the downstream of described at least one the first filter, and the size of the particulate matter in the described hydraulic oil that described at least one second filter allows to pass through allows the size of the particulate matter that passes through less than described at least one first filter.
3. hydraulic system as claimed in claim 2, it is characterized in that, between described at least one first filter and described at least one second filter, be provided with the oil hydraulic pump that is driven by motor, described oil hydraulic pump out passes through described at least one first filter and described at least one second filter with described hydraulic oil successively from described oil groove pumping, thereby so that enters described accumulator or flow through described toatl proportion pressure valve through one-way valve through the hydraulic oil of double filtration.
4. hydraulic system as claimed in claim 2, it is characterized in that, described hydraulic system also comprises the pressure-relief valve that is communicated with described the first in-line and described return line fluid, with the pressure of the hydraulic oil in described the first in-line of box lunch during greater than the first pressure threshold of setting, so that described pressure-relief valve is opened, thereby the hydraulic oil in described the first in-line is discharged in the described return line, and then so that described hydraulic oil be back in the described oil groove.
5. hydraulic system as claimed in claim 3, it is characterized in that, when the pressure of described accumulator place hydraulic oil during less than the second pressure threshold of setting, the running of HYDRAULIC CONTROL SYSTEM unit controls motor is in order to be pumped into the described oil hydraulic pump of hydraulic oil by described motor driving of expectation in the described accumulator.
6. hydraulic system as claimed in claim 2, it is characterized in that, described hydraulic system also comprises the valve of safeguarding that is communicated with described the first in-line and described return line fluid, when breaking down with the described hydraulic system of box lunch, make the hydraulic oil in described the first in-line be discharged into described return line by the described valve of safeguarding, thereby under atmospheric pressure realize the maintenance to described hydraulic system.
7. hydraulic system as claimed in claim 1 is characterized in that, described synchronizer control oil cylinder is can two-way oil-filled and mobile piston cylinder.
8. hydraulic system as claimed in claim 1, it is characterized in that, when described the first proportional pressure valve and described the second proportional pressure valve break down, hydraulic oil in described first clutch control oil cylinder and the described second clutch control oil cylinder is back in described the first in-line by the preparation pipeline that is provided with one-way valve that the hydraulic oil in supplying separately passes through respectively, and then is back in the described return line by described toatl proportion pressure valve.
9. hydraulic system as claimed in claim 1, it is characterized in that, described toatl proportion pressure valve, described the first proportional pressure valve, described the second proportional pressure valve and described the 3rd proportional pressure valve are the solenoid valve of two-bit triplet, they include inlet opening, delivery outlet and refluxing opening separately, and wherein their refluxing opening all is connected in described return line; The inlet opening of described toatl proportion pressure valve is connected in described accumulator; The inlet opening of described the first proportional pressure valve, described the second proportional pressure valve and described the 3rd proportional pressure valve is connected in the delivery outlet of described toatl proportion pressure valve with parallel way; The delivery outlet of described the first proportional pressure valve is connected in described first clutch control oil cylinder; The delivery outlet of described the second proportional pressure valve is connected in described second clutch control oil cylinder; The delivery outlet passing ratio Flow valve of described the 3rd proportional pressure valve is connected in described synchronizer control oil cylinder, and the both sides of described synchronizer control oil cylinder arrange different piston areas.
10. hydraulic system as claimed in claim 1 is characterized in that, described toatl proportion pressure valve is safety valve.
11. hydraulic system as claimed in claim 1, it is characterized in that, described pressure transducer is arranged between described the first proportional pressure valve and the described first clutch control oil cylinder, between described the second proportional pressure valve and the described second clutch control oil cylinder and described proportional flow control valve control between the oil cylinder with described synchronizer, described position transducer is arranged on described synchronizer and controls between oil cylinder and the described synchronizer.
12. one kind comprises the motor vehicle driven by mixed power such as each described hydraulic system of claim 1-11, the transmission system of wherein said motor vehicle driven by mixed power comprises the first clutch that is connected with integrated actuating electric generator with motor, the second clutch that is connected with drive motor, carry out the synchronizer that gear is selected by transmission shaft and gear mechanism, described hybrid vehicle transmission is used for the power of vehicle is sent to wheel, the clutch state of the first clutch of wherein said motor vehicle driven by mixed power and second clutch and the position of synchronizer are controlled by described hydraulic system, thereby realize the level and smooth gearshift of motor vehicle driven by mixed power.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010224814 CN102330759B (en) | 2010-07-12 | 2010-07-12 | Hydraulic system and hybrid power vehicle comprising same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010224814 CN102330759B (en) | 2010-07-12 | 2010-07-12 | Hydraulic system and hybrid power vehicle comprising same |
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| CN102330759A CN102330759A (en) | 2012-01-25 |
| CN102330759B true CN102330759B (en) | 2013-04-10 |
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| CN 201010224814 Expired - Fee Related CN102330759B (en) | 2010-07-12 | 2010-07-12 | Hydraulic system and hybrid power vehicle comprising same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE112014002121A5 (en) * | 2013-04-25 | 2016-01-14 | Schaeffler Technologies AG & Co. KG | Hydrostatic clutch actuation system |
| 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 |
| KR20170065547A (en) * | 2014-10-09 | 2017-06-13 | 보르그워너 인코퍼레이티드 | Control systems for hydraulically actuated transmissions of electric vehicles |
| CN106032825A (en) * | 2015-03-20 | 2016-10-19 | 上海瑞迪汽车科技有限公司 | Vehicle clutch electro-hydraulic automatic control system |
| CN106594261A (en) * | 2015-10-15 | 2017-04-26 | 上海汽车集团股份有限公司 | Hydraulic clutch operation system, control unit, gearbox and automobile |
| ITUB20160258A1 (en) * | 2016-01-25 | 2017-07-25 | Cnh Ind Italia Spa | Transmission system. |
| CN106758600B (en) * | 2017-02-24 | 2018-09-11 | 株洲时代电子技术有限公司 | A kind of rail grinding machine traveling process for gear |
| CN106868964B (en) * | 2017-02-24 | 2018-10-12 | 株洲时代电子技术有限公司 | A kind of rail grinding machine traveling shifting system |
| CN108980231B (en) * | 2018-08-28 | 2019-08-06 | 安徽江淮汽车集团股份有限公司 | A kind of hybrid electric vehicle power control system and hybrid electric vehicle |
| CN109505972A (en) * | 2018-12-07 | 2019-03-22 | 上海上汽马瑞利动力总成有限公司 | A kind of mixed dynamic Transmission System of matching |
| CN111365311B (en) * | 2018-12-25 | 2021-04-16 | 广州汽车集团股份有限公司 | Hydraulic module of electromechanical coupling system and control method thereof |
| CN112406516B (en) * | 2019-08-23 | 2021-11-09 | 上海汽车集团股份有限公司 | Hydraulic system control method and device |
| CN112096853B (en) * | 2020-09-11 | 2021-11-09 | 陕西法士特齿轮有限责任公司 | Safety valve mechanism, system and control method for hydraulic automatic gear shifting system |
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| US6116391A (en) * | 1995-09-12 | 2000-09-12 | Luk Getriebe-Systeme Gmbh | Method of and apparatus for actuating the torque transmitting system and the transmission in the power train of a motor vehicle |
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| CN1980806A (en) * | 2004-06-03 | 2007-06-13 | 标致·雪铁龙汽车公司 | Transmission element for parallel hybrid traction chain |
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| US7007782B2 (en) * | 2003-02-14 | 2006-03-07 | Automotive Components Holdings Llc | Control of a hydraulic coupling system |
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|---|---|---|---|---|
| US6116391A (en) * | 1995-09-12 | 2000-09-12 | Luk Getriebe-Systeme Gmbh | Method of and apparatus for actuating the torque transmitting system and the transmission in the power train of a motor vehicle |
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| CN1980806A (en) * | 2004-06-03 | 2007-06-13 | 标致·雪铁龙汽车公司 | Transmission element for parallel hybrid traction chain |
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| CN102330759A (en) | 2012-01-25 |
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