CN106104093A - Hydraulic supply unit - Google Patents

Abstract

Thering is provided a kind of hydraulic supply unit, this hydraulic supply unit can omit the accumulator of conventional decompression, and can realize more function with less parts, and then can make device integral miniaturization.Accumulator (62) is connected with the 1st and the 2nd main line (SL, ML) via the 1st and the 2nd looped pipeline road (OL1, OL2) respectively, and the hydraulic pressure from oil pump is individually directed the 1st and the 2nd driving force transmission mechanism by the 1st and the 2nd main line (SL, ML).The 1st open and close valve (63) that 1st looped pipeline road (OL1) carries out opening and closing is opened using the hydraulic pressure supplied via the 2nd main line (ML) as the 1st signal pressure.2nd looped pipeline road (OL2) carries out the 2nd open and close valve (64) of opening and closing be configured to its spool (82) and pressed to opening direction by means of the hydraulic pressure from accumulator (62) side, and, 2nd open and close valve (64) is connected with accumulator (62) via the 3rd looped pipeline road (OL3), opens using the hydraulic pressure supplied via the 3rd looped pipeline road (OL3) as the 2nd signal pressure.3rd looped pipeline road (OL3) is opened and closed by the 3rd open and close valve (65).

Description

Hydraulic supply unit

Technical field

The present invention relates to hydraulic supply unit, hydraulic pressure supply is transmitted the hydraulic pressure of driving force from electromotor to being used for by it 1st driving force transmission mechanism of formula and the 2nd driving force transmission mechanism.

Background technology

In the past, as this hydraulic supply unit, the most known structure having disclosed in patent documentation 1.This hydraulic pressure supply Device is for the hydraulic pressure to driving force transmission mechanism supply work such as the variable v-belt drive of vehicle, clutches.Further, liquid Pressure feedway has: with electromotor as power source, the oil pump that is connected with driving force transmission mechanism via main line, via pair Pipeline and the 1st accumulator being connected with main line, the stop valve being located on looped pipeline road and the 2nd storage being connected with the 1st accumulator Can device.

In the hydraulic supply unit of above structure, when electromotor operates, stop valve remains open mode, from oil The hydraulic pressure of pump is supplied to driving force transmission mechanism via main line, and one part is supplied to via main line and looped pipeline road Get up in the 1st accumulator and by accumulation.Further, when engine stop, stop valve is kept closed mode, thus stores before The hydraulic pressure amassed in the 1st accumulator is kept, and a part for the hydraulic pressure accumulated is discharged into the 2nd accumulator and is accumulated Come.Then, when electromotor is started again, stop valve is opened, thus is accumulated in the hydraulic pressure warp in the 1st and the 2nd accumulator It is fed into driving force transmission mechanism by looped pipeline road and main line.In sum, in this conventional hydraulic supply unit, starting During the starting again of machine, supply hydraulic pressure fully to driving force transmission mechanism.

Prior art literature

Patent documentation

Patent documentation 1: Japanese Patent Application 2012-185639

Summary of the invention

The problem that invention is to be solved

In above-mentioned conventional hydraulic supply unit, the hydraulic pressure being accumulated in the 1st accumulator is only capable of at electromotor again It is fed into driving force transmission mechanism, when the operating of electromotor, even if from the situation that the hydraulic pressure of oil pump is not enough during secondary starting Under, can not supply.Further, the reason being provided with the 2nd accumulator in conventional hydraulic supply unit is as follows.That is, It is because: during the operating of electromotor, the hydraulic pressure of driving force transmission mechanism side is according to the duty of driving force transmission mechanism sometimes And become big, thus, the hydraulic pressure being accumulated in the 1st accumulator becomes very large.In the case of Gai, in order to keep being accumulated in the 1st accumulation of energy The biggest hydraulic pressure in device, it is necessary to using large-scale stop valve, thus, the manufacturing cost of device increases, therefore to prevent This situation, makes the 2nd accumulator play a role as the accumulator of decompression, by remaining of the hydraulic pressure being accumulated in the 1st accumulator Remaining part subrelease is put in the 2nd accumulator.So, in conventional hydraulic supply unit, the 2nd accumulator of decompression necessitates Technical characteristic, accordingly resulted in the maximization that device is overall.

The present invention completes to solve above such problem, its object is to, it is provided that a kind of hydraulic pressure supply dress Putting, this kind of hydraulic supply unit can omit the accumulator of conventional decompression, and can realize more with less parts Many functions, and then device integral miniaturization can be made.

Means for solving the above

In order to reach above-mentioned purpose, the invention of the 1st aspect is hydraulic supply unit, and hydraulic pressure supply is transmitted to being used for by it From the 1st driving force transmission mechanism ((following, identical in this) in embodiment of the fluid pressure type of the driving force of electromotor 3 Deceleration lazy-tongs 35, speedup lazy-tongs 36) and the 2nd driving force transmission mechanism (the 1st clutch the 15, the 2nd clutch 16), described hydraulic supply unit is characterised by, it has: oil pump 41, and it is with electromotor 3 as power source, for respectively via 1st and the 2nd main line (synchronizing oil circuit SL, working connection ML) is to the 1st and the 2nd driving force transmission mechanism supply hydraulic pressure；Accumulator 62, 62, it can accumulate hydraulic pressure, respectively via the 1st and the 2nd looped pipeline road (the 1st auxiliary oil circuit OL1, the 2nd auxiliary oil circuit OL2, auxiliary oil circuit OL) And be connected with the 1st and the 2nd main line；1st open and close valve 63, it is made up of normally close valve, and the 1st looped pipeline road carries out opening and closing, and with 2nd main line connects, and opens using the hydraulic pressure via the 2nd main line supply as the 1st signal pressure；2nd open and close valve 64, it is by having The normally close valve having spool 82 is constituted, and the 2nd looped pipeline road is carried out opening and closing, is arranged to spool 82 by means of from accumulator 62,62 The hydraulic pressure of side and pressed to opening direction, and the 2nd open and close valve 64 is via the 3rd looped pipeline road (the 3rd auxiliary oil circuit OL3, auxiliary oil circuit OL) and with accumulator 62,62 it is connected, opens as the 2nd signal pressure using the hydraulic pressure via the 3rd looped pipeline road supply；And the 3rd open Valve closing 65, it is for carrying out opening and closing to the 3rd looped pipeline road.

According to this structure, the hydraulic pressure from the oil pump with electromotor as power source is supplied respectively via the 1st and the 2nd main line It is given to the 1st and the 2nd driving force transmission mechanism.Further, accumulator is respectively via the 1st and the 2nd looped pipeline Lu Eryu the 1st and the 2nd supervisor Road connects, and the 1st open and close valve that the 1st looped pipeline road carries out opening and closing is made up of normally close valve, and with the liquid via the 2nd main line supply Pressure is opened as the 1st signal pressure.Additionally, the 2nd open and close valve that the 2nd looped pipeline road carries out opening and closing is made up of normally close valve, and warp Connected by the 3rd looped pipeline Lu Eryu accumulator, open as the 2nd signal pressure using the hydraulic pressure via the 3rd looped pipeline road supply.Further, Utilize the 3rd open and close valve that the 3rd looped pipeline road is carried out opening and closing.

According to said structure, during electromotor operating, along with the hydraulic pressure from oil pump is fed into the 1st and the as described above 2 driving force transmission mechanisms, the 1st open and close valve is opened using the hydraulic pressure via the 2nd main line supply as the 1st signal pressure.Thus, send out During motivation operating, accumulator connects with oil pump, thus, from the one of the hydraulic pressure of oil pump via the 1st looped pipeline road and the 1st main line Part is fed in accumulator via the 1st main line and the 1st looped pipeline road and is accumulated.In the case of Gai, accumulator be except oil pump Outside also connect with the 1st driving force transmission mechanism, therefore consumed by the 1st driving force transmission mechanism along with hydraulic pressure, it is possible to will accumulation Hydraulic pressure supply in accumulator is to the 1st driving force transmission mechanism.

Further, after engine stop, the oil pump with electromotor as power source also stops, thus, from oil pump through the 2nd The supply of the 1st signal pressure of main line also stops, and therefore, the 1st open and close valve being made up of normally close valve is closed.Additionally, to accumulation of energy The 2nd looped pipeline road that device connects carries out the 2nd open and close valve of opening and closing and is made up of normally close valve, if not opening by the 3rd open and close valve Supplying the 2nd signal pressure, the 2nd open and close valve is maintained for closed mode.Further, the 3rd opening and closing is passed through on the 3rd looped pipeline road being connected with accumulator Valve carries out opening and closing.In sum, such as, when engine stop, by utilizing the 1st～the 3rd open and close valve to close off the 1st～ 3 looped pipeline roads, thus the hydraulic pressure being accumulated in accumulator before is maintained.In the case of Gai, the 1st open and close valve be along with engine stop And be automatically switched off, there is no need for the special control of the 1st open and close valve that the hydraulic pressure being accumulated in accumulator is kept System.

Additionally, such as, during starting again after engine stop, by being opened by the 3rd open and close valve, accumulation of energy will be accumulated in A part for hydraulic pressure in device is supplied to the 2nd open and close valve as the 2nd signal pressure, thus, is opened by the 2nd open and close valve such that it is able to The surplus of the hydraulic pressure being accumulated in accumulator is supplied to the 2nd driving force transmission mechanism via the 2nd looped pipeline road and the 2nd main line.

Further, can clearly know according to said structure, the 2nd open and close valve is via the 2nd looped pipeline road, accumulator, the 1st looped pipeline road Be connected with the 1st driving force transmission mechanism with the 1st main line, the spool of the 2nd open and close valve by the hydraulic pressure from accumulator side to beating Evolution is to pressing.Additionally, when electromotor operates, as mentioned above the 1st looped pipeline road is carried out the 1st open and close valve of opening and closing and is maintained at and beats Open state.Based on above content, when electromotor operates, when the hydraulic pressure of the 1st driving force transmission mechanism side becomes bigger, make This hydraulic pressure is applied to the spool of the 2nd open and close valve via the 1st main line etc., thereby, it is possible to opened by the 2nd open and close valve.

Thus, the 1st and the 2nd driving force transmission mechanism via the 1st main line, the 1st looped pipeline road, accumulator, the 2nd looped pipeline road with And the 2nd main line communicate with each other, therefore, it is possible to make the hydraulic pressure of the 1st driving force transmission mechanism side be discharged into the 2nd driving force transmission machine Structure side.Therefore, when electromotor operates, it is possible to prevent the hydraulic pressure of the 1st driving force transmission mechanism side from becoming excessive, so will not be Accumulator is accumulated excessive hydraulic pressure, therefore, it is possible to omit above-mentioned conventional decompression accumulator.Further, in the case of being somebody's turn to do, with The hydraulic pressure the 1st driving force transmission mechanism side becomes bigger, and the 2nd open and close valve automatically opens up, so need not for making the 1st to drive The special control of the 2nd open and close valve of the hydraulic pressure release of Poewr transmission mechanism side.

Further, as it has been described above, the hydraulic supply unit of the present invention has following function: when electromotor operates at accumulator The function of middle accumulation hydraulic pressure；When electromotor operates from accumulator to the function of the 1st driving force transmission mechanism supply hydraulic pressure；Prevent The function of excessiveization of the hydraulic pressure being accumulated in accumulator；It is accumulated in accumulator when electromotor operates during engine stop Hydraulic pressure carry out the function that keeps；When again starting, the hydraulic pressure supply being accumulated in accumulator is driven to the 2nd at electromotor The function of force transfer mechanism, the hydraulic supply unit of the present invention has the function more than conventional hydraulic supply unit.Additionally, store Accumulator from hydraulic pressure supply to the 1st and the 2nd driving force transmission mechanism that carry out can be also used as by device, the 2nd open and close valve be also used as Control valve that accumulation and the releasing of the hydraulic pressure of accumulator are controlled and for making the liquid of the 1st driving force transmission mechanism side The relief valve of pressure release, accordingly, it is capable to enough less parts realize more function.

As it has been described above, according to the hydraulic supply unit of the present invention, it is possible to omit conventional decompression accumulator, it is possible to relatively Few parts realize more function, and then can make device integral miniaturization.

The invention of the 2nd aspect is characterised by, in the hydraulic supply unit described in the 1st aspect, to the 2nd driving force transmission The hydraulic pressure of mechanism's supply is set to higher than to the hydraulic pressure of the 1st driving force transmission mechanism supply, when electromotor 3 operates, works as rule When fixed condition is set up, by being opened by the 3rd open and close valve 65, the 2nd signal pressure is fed into the 2nd open and close valve 64, with by the 2nd open and close valve 64 open (Figure 18).

According to this structure, when electromotor operates, when rated condition is set up, the 2nd open and close valve is opened.Thus, such as the 1st As described in the explanation of the invention of aspect, the 1st and the 2nd driving force transmission mechanism is via the 1st main line, the 1st looped pipeline road, storage Can device, the 2nd looped pipeline road and the 2nd main line and communicate with each other.In the case of Gai, to the hydraulic pressure of the 2nd driving force transmission mechanism supply It is set to higher than to the hydraulic pressure of the 1st driving force transmission mechanism supply, therefore, it is possible to higher by the 2nd driving force transmission mechanism side Hydraulic pressure via the supply such as the 2nd main line to the 1st driving force transmission mechanism.

Further, owing to carrying out opening of the 2nd open and close valve when rated condition is set up, it is therefoie, for example, by starting During machine operating, request makes the 1st rapid operation setup of driving force transmission mechanism is this rated condition, when this request, it is possible to will be higher Hydraulic pressure supply to the 1st driving force transmission mechanism, thereby, it is possible to make the 1st driving force transmission mechanism work rapidly.

Further, both fuel pump is the structure sucking and discharging working oil, then be mixed into sky from the working oil that oil pump is discharged Gas is inevitable.If the air being mixed into is accumulated in accumulator together with hydraulic pressure, then drive to the 1st and the 2nd from accumulator The hydraulic pressure of force transfer mechanism supply correspondingly reduces.According to said structure, when electromotor operates, it is possible to the 2nd driving force is passed The hydraulic pressure passing mechanism side supplies to the 1st via the 2nd main line, the 2nd looped pipeline road, accumulator, the 1st looped pipeline road and the 1st main line Driving force transmission mechanism, therefore, it is possible to air-out therewith, and then, it is possible to from accumulator to the 1st and the 2nd driving force transmission machine Structure supplies hydraulic pressure fully.

The invention of the 3rd aspect is characterised by, in the hydraulic supply unit described in the 1st or the 2nd aspect, at electromotor 3 During stopping, by the 3rd open and close valve 65 is maintained at closed mode, the 2nd signal presses to the supply of the 2nd open and close valve 64 and is stopped, with 2nd open and close valve 64 is maintained at closed mode (Figure 19), when the electromotor 3 of halted state is started, by by the 3rd open and close valve 65 open, thus the 2nd signal pressure is fed into the 2nd open and close valve 64, so that the 2nd open and close valve 64 is opened (Figure 20).

According to this structure, when engine stop, the 2nd open and close valve is maintained at closed mode, and when halted state When electromotor is started, the 2nd open and close valve is opened, therefore, it is possible to suitably obtain the effect of the invention of the 1st aspect, i.e. can Suitably obtain following effect: can be when electromotor starts again, from accumulator to the 2nd driving force transmission mechanism supply hydraulic pressure.

The invention of the 4th aspect is characterised by, in the hydraulic supply unit described in any one of the 1st to the 3rd aspect, Also have: bypass line (the 1st bleed off circuit BL1), it is connected with the 1st looped pipeline road, walks around the 1st open and close valve 63；And check valve (the 1st check valve 91), it is located in bypass line, it is allowed to working oil flows into accumulator from the 1st supervisor's trackside via bypass line 62,62 side, and stop working oil to flow into the 1st supervisor's trackside from accumulator 62,62 side via bypass line.

Owing to oil pump is with electromotor as power source, so when electromotor starts, the hydraulic pressure of oil pump the most fully rises, institute With smaller via the 1st signal pressure of the 2nd supervisor's road direction the 1st open and close valve supply from oil pump, thus, the 1st as normally close valve is opened Valve closing is likely not switched on.

Connect in the way of walking around the 1st open and close valve, in bypass line according to said structure, bypass line and the 1st looped pipeline road It is provided with check valve.Further, by this check valve, it is allowed to working oil flows into accumulator side from the 1st supervisor's trackside via bypass line. Based on above content, even if when electromotor starts, causing the 1st open and close valve not beaten owing to the hydraulic pressure of oil pump the most fully rises In the case of opening, it is also possible to by a part for the hydraulic pressure from oil pump via the 1st main line, the 1st looped pipeline road and bypass line It is supplied in accumulator and accumulates, therefore, it is possible to make hydraulic pressure accumulate rapidly in accumulator.Further, by check valve, resistance Only working oil flows into the 1st supervisor's trackside from accumulator side via bypass line, and therefore, the hydraulic pressure being accumulated in accumulator is starting The 1st supervisor's trackside will not be discharged into via bypass line when machine stops.

Accompanying drawing explanation

Fig. 1 is that the drive system of the vehicle of the hydraulic supply unit by applying embodiment of the present invention is together with driving wheel The skeleton diagram illustrated.

Fig. 2 is the hydraulic circuit diagram illustrating hydraulic supply unit etc..

Fig. 3 is the hydraulic circuit diagram of the synchronous hydraulic pipeline etc. illustrating hydraulic supply unit.

Fig. 4 is by the figure shown in a part of parts cutting for pressure accumulater.

Fig. 5 is the sectional view amplifying the 1st open and close valve illustrated under closed mode.

Fig. 6 is the sectional view amplifying the 1st open and close valve illustrated under open mode.

Fig. 7 is the sectional view amplifying the 2nd open and close valve illustrated under closed mode.

Fig. 8 is the sectional view amplifying the 2nd open and close valve illustrated under open mode.

Fig. 9 is the block diagram of the ECU etc. illustrating hydraulic supply unit.

Figure 10 is the figure for illustrating the action of the drive system under LOW pattern.

Figure 11 is the figure for illustrating the action of the drive system under HI pattern.

Figure 12 is the figure for illustrating the action of the synchronous hydraulic pipeline under LOW pattern.

Figure 13 is the figure for illustrating the action of the synchronous hydraulic pipeline under HI pattern.

Figure 14 is the figure for illustrating the action of the pressure accumulater during manual starting of electromotor.

Figure 15 is the figure that the action of the pressure accumulater under to normal mode illustrates.

Figure 16 is the figure for illustrating the action of the pressure accumulater being different under the normal mode of Figure 15.

Figure 17 is the figure that the action of the pressure accumulater under to safe mode illustrates.

Figure 18 is the figure for illustrating the action of the pressure accumulater under rapid mode of operation.

Figure 19 is the figure that the action of the pressure accumulater in being automatically stopped electromotor illustrates.

The figure that the action of pressure accumulater when Figure 20 is for the most again starting electromotor illustrates.

Detailed description of the invention

Hereinafter, referring to the drawings being preferred embodiment described in detail to the present invention.As it is shown in figure 1, apply this The drive system of the vehicle of the hydraulic supply unit of embodiment has: as the power source of vehicle internal combustion engine (hereinafter referred to as " electromotor ") 3, for the driving force of electromotor 3 being delivered to the left and right sidesing driving wheel DW's (illustrate only right driving wheel) of vehicle Torque-converters 4, buncher 5, power shaft the 6, the 1st output shaft the 7, the 2nd output shaft 8, countershaft 9 and pony axle 10.Electromotor 3 is Petrol engine, has the bent axle 3a for exporting driving force.These power shaft the 6, the 1st output shaft the 7, the 2nd output shaft 8, countershafts 9 And pony axle 10 configures in parallel relationship, power shaft 6 is configured to become coaxial with bent axle 3a.

Torque-converters 4 has impeller of pump 4a, turbine 4b and lock-up clutch, and (lock up clutch, hereinafter referred to as " LU Clutch ") 4c.Impeller of pump 4a and bent axle 3a links, and turbine 4b links with power shaft 6, is filled with work between both 4a, 4b Oil.The driving force of electromotor 3 is substantially passed to power shaft 6 via impeller of pump 4a, working oil and turbine 4b.

LU clutch 4c is fluid pressure type, is provided with 1LU grease chamber 4d and the 4e (reference of 2LU grease chamber in LU clutch 4c Fig. 2).By by hydraulic pressure supply to 1LU grease chamber 4d, and from 2LU grease chamber 4e discharge hydraulic pressure (working oil), thus LU clutch Device 4c becomes engagement state, in contrast, by by hydraulic pressure supply to 2LU grease chamber 4e, and from 1LU grease chamber 4d arrange Going out working oil, thus LU clutch 4c releases this joint.By the joint of LU clutch 4c, make the bent axle 3a of electromotor 3 and defeated Enter the state becoming directly link between axle 6.Further, the degree of engagement of LU clutch 4c is according to being supplied to the 1st or 2LU grease chamber The hydraulic pressure (amount of working oil) of 4d, 4e and change.

Further, impeller of pump 4a is integrally formed with gear 4f, this gear 4f and the input being integrally located at oil pump 41 described later Gear 41a engagement on axle.It addition, in FIG, for convenience, gear 41a is drawn in the position leaving gear 4f, by void Line illustrates that both 41a, 4f are engaged with each other.

Described buncher 5 is belt, has the 1st belt wheel the 11, the 2nd belt wheel 12 and transfer tape 13.1st belt wheel 11 by Movable part 11a opposite each other and fixed part 11b etc. are constituted.Movable part 11a is can move along the axis direction of the 2nd output shaft 8 Mode that is dynamic and that can not rotate against is installed on the 2nd output shaft 8, and fixed part 11b is fixed on the 2nd output shaft 8.Both 11a, 11b Between be formed with the trough of belt of V shape, this trough of belt is for around hanging transfer tape 13.Further, movable part 11a is provided with belt wheel grease chamber 11c (with reference to Fig. 2), by supplying hydraulic pressure to this belt wheel grease chamber 11c, movable part 11a moves in the axial direction, thus the 1st belt wheel 11 Belt wheel width changes, and its effective diameter changes.

2nd belt wheel 12 is constituted in the way of as above-mentioned 1st belt wheel 11, and its movable part 12a figure can be along the axle of countershaft 9 Line direction is moved and the mode that cannot rotate is installed on countershaft 9, and fixed part 12b is fixed on countershaft 9.Both shapes between 12a, 12b Become to have the trough of belt of V shape.Further, movable part 12a is provided with belt wheel grease chamber 12c (with reference to Fig. 2).By to this belt wheel grease chamber 12c Supply hydraulic pressure, movable part 12a moves in the axial direction, thus the belt wheel width change of the 2nd belt wheel 12, and its effective diameter becomes Change.Transfer tape 13 hangs around two belt wheels 11,12 with the state being embedded in the trough of belt of two belt wheels 11,12.

As it has been described above, in buncher 5, by supplying to belt wheel grease chamber 11c, 12c of the 1st and the 2nd belt wheel 11,12 Hydraulic pressure, the effective diameter of two belt wheels 11,12 is infinitely changed, and thus, infinitely controls its gear ratio (the 1st and the 2nd belt wheel 11, the ratio of the rotating speed between 12).

Further, on power shaft 6, it is respectively equipped with in the part with the end and electromotor 3 side of electromotor 3 opposite side 1 clutch the 15 and the 2nd clutch 16.1st clutch 15 is used for power shaft 6 and is located at power shaft 6 in the way of rotatable On the 1st reduction gearing 21 between be attached and cut off, be made up of the friction clutch of fluid pressure type, there is clutch grease chamber 15a (with reference to Fig. 2).By supplying hydraulic pressure to the clutch grease chamber 15a of the 1st clutch 15, the 1st clutch 15 becomes joint shape State, thus, connected between power shaft the 6 and the 1st reduction gearing 21.Thus, the 1st reduction gearing 21 and power shaft 6 are integratedly certainly As rotated.

Further, by stopping the clutch grease chamber 15a supply hydraulic pressure to the 1st clutch 15, the 1st clutch 15 becomes joint The state being released from, thus, cut-off between power shaft the 6 and the 1st reduction gearing 21.Thus, the 1st reduction gearing 21 is relative to defeated Enter axle 6 rotatable.The hydraulic pressure being supplied to clutch grease chamber 15a is the highest, and the degree of engagement of the 1st clutch 15 is the biggest.Further, 1 reduction gearing 21 engages with the 2nd reduction gearing 22 being integrally formed at the 2nd output shaft 8.

Above-mentioned 2nd clutch 16 is for power shaft 6 and the 1st sensing tooth being located at power shaft 6 in the way of rotatable It is attached between wheel 23 and cuts off, being made up of the friction clutch of the fluid pressure type identical with the 1st clutch 15, there is clutch Grease chamber 16a (with reference to Fig. 2).By supplying hydraulic pressure to the clutch grease chamber 16a of the 2nd clutch 16, the 2nd clutch 16 becomes joint State, thus, connected between power shaft the 6 and the 1st induction gear 23.Thus, the 1st induction gear 23 is with power shaft 6 integratedly Freely rotate.

Further, by stopping the clutch grease chamber 16a supply hydraulic pressure to the 2nd clutch 16, the 2nd clutch 16 becomes it and connects Close the state being released from, thus, cut-off between power shaft the 6 and the 1st induction gear 23.Thus, the 1st induction gear 23 relative to Power shaft 6 is rotatable.Identical with the 1st clutch 15, the hydraulic pressure being supplied to clutch grease chamber 16a is the highest, the 2nd clutch 16 Degree of engagement becomes much larger.Further, the 1st induction gear 23 engages with the 2nd induction gear 24 being integrally formed at countershaft 9.

Described 1st output shaft 7 is provided with in the way of rotatable rotating forward gear 25 and counter gear 26, and one It is provided with the 1st and finally drives gear 27.Further, on the 1st output shaft 7, it is provided with the deceleration lazy-tongs 35 of fluid pressure type, passes through Slow down with lazy-tongs 35, rotate forward gear 25 and counter gear 26 links with the 1st output shaft 7 selectively.

As it is shown on figure 3, deceleration lazy-tongs 35 have: cylinder 35a, the work being located in the way of sliding freely in cylinder 35a Fill in 35b, be integrally formed at the selector fork 35c of piston 35b and be sticked in the sleeve 35d of selector fork 35c.Hereinafter, with Fig. 3 Left side be that " left ", right side illustrate for " right ".In cylinder 35a by piston 35b be divided into left side the 1st synchronization grease chamber 35e and The 2nd synchronization grease chamber 35f on right side, hydraulic pressure is supplied simultaneously to the 1st and the 2nd synchronization grease chamber 35e, 35f, or is fed into the 1 or the 2nd synchronizes grease chamber 35e, 35f.

In deceleration with in lazy-tongs 35, when hydraulic pressure is fed into the 1st and the 2nd synchronization grease chamber 35e, 35f, piston 35b is held in neutral position (with reference to Figure 13 described later) together with selector fork 35c, correspondingly, rotates forward gear 25 He Counter gear 26 is released from (with reference to Figure 11 described later) relative to the link of the 1st output shaft 7.Thus, gear 25 and reversion are rotated forward Gear 26 is rotatable relative to the 1st output shaft 7.Further, when hydraulic pressure is supplied only to the 1st synchronization grease chamber 35e, piston 35b Move to the right (with reference to Figure 12 described later) relative to cylinder 35a together with selector fork 35c, correspondingly, rotate forward gear 25 It is linked on the 1st output shaft 7 (with reference to Figure 10 described later).Thus, rotate forward gear 25 to rotate from integratedly with the 1st output shaft 7 As, counter gear 26 is rotatable relative to the 1st output shaft 7.

Additionally, hydraulic pressure be supplied only to the 2nd synchronization grease chamber 35f time, piston 35b together with selector fork 35c relative to Cylinder 35a moves to the left, and correspondingly, counter gear 26 is linked on the 1st output shaft 7.Thus, counter gear 26 and 1 output shaft 7 is the most rotatable, rotates forward gear 25 rotatable relative to the 1st output shaft 7.

Further, rotate forward gear 25 engage with aforesaid 1st induction gear 23, counter gear 26 be integrally formed at pony axle 1st gear 28 of 10 engages.On pony axle 10 in addition to the 1st gear 28, the 2nd gear 29, the 2nd gear 29 also it are wholely set Engage with the 1st induction gear 23.It addition, in FIG, for convenience, rotate forward gear 25 and the 2nd gear 29 to be drawn in away from the The position of 1 induction gear 23, is represented by dashed line both and 25,29 engages with the 1st induction gear 23.

Further, the described 1st gear 27 is finally driven to engage with the final driven gear 30 being integrally formed at differential gear DF. On differential gear DF, be provided with drive shaft AL of left and right, Ar, the former AL and the latter Ar are linked to left and right sidesing driving wheel DW respectively On.

Additionally, on the 2nd output shaft 8, be provided with the 2nd in the way of rotatable and finally drive gear 31, and be provided with liquid The speedup of pressure type lazy-tongs 36.Speedup lazy-tongs 36 are attached to the 2nd output shaft for finally driving gear 31 by the 2nd On 8, its basic structure is identical with deceleration lazy-tongs 35.Specifically, as it is shown on figure 3, speedup lazy-tongs 36 have: Cylinder 36a, the piston 36b being located in the way of sliding freely in cylinder 36a, the selector fork 36c being integrally formed at piston 36b and It is sticked in the sleeve 36d of selector fork 36c.It is divided into the 1st synchronization grease chamber 36e in left side and right side in cylinder 36a by piston 36b 2nd synchronizes grease chamber 36f, and hydraulic pressure is selectively supplied to the 1st and the 2nd synchronization grease chamber 36e, 36f.

In speedup with in lazy-tongs 36, when hydraulic pressure is fed into the 1st synchronization grease chamber 36e, piston 36b and selector fork 36c moves (with reference to Figure 13 described later) to the right relative to cylinder 36a together, and correspondingly, the 2nd finally drives gear 31 to be connected Tie (with reference to Figure 11 described later) on the 2nd output shaft 8.Thus, the 2nd gear 31 is finally driven to rotate integratedly with the 2nd output shaft 8 Freely.Additionally, hydraulic pressure be fed into the 2nd synchronization grease chamber 36f time, piston 36b together with selector fork 36c relative to cylinder 36a Moving to the left (with reference to Figure 12 described later), correspondingly, the 2nd finally drives gear 31 to be solved with the link of the 2nd output shaft 8 Except (with reference to Figure 10 described later).Thus, the 2nd finally drive gear 31 rotatable relative to the 2nd output shaft 8.Further, the 2nd Gear 31 is driven to engage with aforesaid final driven gear 30 eventually.

The drive system of above structure has as its action pattern: by the driving force of electromotor 3 in the change with low speed side Speed ratio carried out infinitely variable speeds after state under be transferred to driving wheel DW low-speed mode (hereinafter referred to " LOW pattern ") and will The driving force of electromotor 3 is transferred to the high speed of driving wheel DW with the gear ratio of high-speed side when having carried out after infinitely variable speeds Pattern (hereinafter becomes " HI pattern ").Hereinafter, Figure 10 and Figure 11 is respectively referred to for moving in these LOW patterns and HI pattern Illustrate successively.

[LOW pattern]

In LOW pattern, the 1st clutch 15 is made to engage and release the joint of the 2nd clutch 16.Further, deceleration is utilized With lazy-tongs 35, rotating forward gear 25 is attached on the 1st output shaft 7, and it is defeated to utilize speedup lazy-tongs 36 to release the 2nd Shaft the 8 and the 2nd finally drives the link between gear 31.

So, as shown in the thick line of the band arrow represented with hacures in Figure 10, transmit via torque-converters 4 from electromotor 3 Driving force to power shaft 6 carries via the 1st clutch the 15, the 1st reduction gearing the 21, the 2nd reduction gearing the 22, the 2nd output shaft the 8, the 1st Wheel 11, transfer tape the 13, the 2nd belt wheel 12, countershaft the 9, the 2nd induction gear the 24, the 1st induction gear 23, rotating forward gear 25, deceleration are with same Step mechanism the 35, the 1st output shaft the 7, the 1st finally drives gear 27, final driven gear 30, differential gear DF and left and right drive shaft AL, Ar, be passed to left and right sidesing driving wheel DW.Further, in LOW pattern, by changing the gear ratio of buncher 5, start The driving force of machine 3 is passed to driving wheel DW when having carried out after infinitely variable speeds with the gear ratio of low speed side.It addition, In Figure 10, in order to illustrate that the 1st clutch 15 is in engagement state, the 1st clutch 15 be marked hacures.

[HI pattern]

In HI pattern, make the 2nd clutch 16 engage, and release the joint of the 1st clutch 15.Further, speedup is utilized Finally drive gear 31 to be attached on the 2nd output shaft 8 with lazy-tongs 36 by the 2nd, and utilize deceleration lazy-tongs 35 to solve Except the link rotated forward between both gear 25 and counter gear 26 and the 1st output shaft 7.

So, as shown in the thick line of the band arrow represented with hacures in Figure 11, it is transferred to power shaft 6 from electromotor 3 Driving force via the 2nd clutch 16, the 1st induction gear 23, the 2nd induction gear 24, countershaft 9, the 2nd belt wheel 12, transfer tape 13, 1 belt wheel the 11, the 2nd output shaft 8, speedup lazy-tongs the 36, the 2nd finally drive gear 31, final driven gear 30, differential gear DF and left and right drive shaft AL, Ar, be passed to left and right sidesing driving wheel DW.Further, in HI pattern, by changing buncher The gear ratio of 5, the driving force of electromotor 3 is passed to drive when having carried out after infinitely variable speeds with the gear ratio of high-speed side Driving wheel DW.It addition, in fig. 11, in order to illustrate that the 2nd clutch 16 is in engagement state, the 2nd clutch 16 be marked shade Line.

It follows that the hydraulic supply unit of present embodiment is illustrated with reference to Fig. 2～Fig. 9.Hydraulic supply unit to Aforesaid torque-converters 4, buncher the 5, the 1st and the 2nd clutch 15,16, deceleration lazy-tongs 35 and speedup synchronize Mechanism 36 supplies hydraulic pressure, and hydraulic supply unit has the oil pump 41 shown in Fig. 2, working connection ML, clutch hydraulic pressure pipeline CLL, LU Fluid pressure line LUL, belt wheel fluid pressure line PUL and synchronous hydraulic pipeline SYL.In the following description, to the 1st and the 2nd clutch Device 15,16 carries out being referred to as and being properly termed as " clutch mechanism ", and to deceleration lazy-tongs 35 and speedup lazy-tongs 36 carry out being referred to as and being properly termed as " lazy-tongs ".

Oil pump 41 is the gear pump with electromotor 3 as power source, and it is connected with the one end of working connection ML.Electromotor 3 is transported When turning, the driving force of electromotor 3 is transferred to oil pump 41 via aforesaid torque-converters 4, gear 4f and gear 41a, thus oil pump 41 Being driven, thus, oil pump 41 sucks and is stored in the working oil in fuel tank R, and is discharged to working connection after boosting In ML.In working connection ML, from oil pump 41 side, it is sequentially provided with PH control valve the 42 and the 1st air relief valve 43 being made up of guiding valve.At oil When pump 41 operates, from the hydraulic pressure of working oil of oil pump 41 after by PH control valve 42 pressure regulation be fed into the 1st and subtract Pressure valve 43, LU fluid pressure line LUL and belt wheel fluid pressure line PUL.The hydraulic pressure being fed into the 1st air relief valve 43 is subtracting by the 1st Clutch hydraulic pressure pipeline CLL, synchronous hydraulic pipeline SYL it is fed under the post-decompression state of pressure valve 43.

Clutch hydraulic pressure pipeline CLL for by from the 1st air relief valve 43 hydraulic pilot clutch mechanism (the 1st and the 2nd from Clutch 15,16) clutch grease chamber 15b, 16b, clutch hydraulic pressure pipeline CLL has the 1st and the 2nd clutch oil circuit CL1, CL2 And the 1st and the 2nd electromagnetic valve SV1, SV2.The one end of the 1st and the 2nd clutch oil circuit CL1, CL2 and the other end of working connection ML Portion connects, and the other end of two oil circuit CL1, CL2 is connected with clutch grease chamber 15a, 16a respectively.Further, the 1st and the 2nd electromagnetic valve SV1, SV2 are respectively provided at the midway of the 1st and the 2nd clutch oil circuit CL1, CL2, are connected with ECU described later (electronic control unit) 2 (with reference to Fig. 9).

When oil pump 41 operates, from the hydraulic pressure of the 1st air relief valve 43 respectively via working connection ML, the 1st and the 2nd clutch oil Road CL1, CL2 are fed into clutch grease chamber 15a, 16a.By utilize ECU2 described later change the 1st and the 2nd electromagnetic valve SV1, The aperture of SV2, controls to be fed into the hydraulic pressure (amount of working oil) of clutch grease chamber 15a, 16a respectively, thus, changes the respectively The degree of engagement of the 1 and the 2nd clutch 15,16.

LU fluid pressure line LUL is for by the 1st and the 2LU grease chamber of the hydraulic pilot LU clutch 4c from PH control valve 42 4d, 4e, LU fluid pressure line LUL is constituted by with lower part: the TC pressure regulator valve 44 being connected with PH control valve 42 via oil circuit；Via oil The LC control valve 45 that road is connected with TC pressure regulator valve 44；And via oil circuit with LC control valve the 45, the 1st and 2LU grease chamber 4d, 4e The LC switching valve 46 etc. connected.These TC pressure regulator valves 44, LC control valve 45 and LC switching valve 46 is made up of guiding valve.At oil pump 41 During operating, the hydraulic pressure from PH control valve 42 is fed into via TC pressure regulator valve 44, LC control valve 45 and LC switching valve 46 etc. The 1st or 2LU grease chamber 4d, 4e of LU clutch 4c.

Further, from the hydraulic pressure of aforesaid 1st air relief valve 43 after by the 3rd electromagnetic valve SV3 pressure regulation be supplied to To LC control valve 45.Thus, LC control valve 45 is driven, thus is supplied to the 1st or hydraulic pressure (the working oil of 2LU grease chamber 4d, 4e Amount) change, and then change the degree of engagement of LU clutch 4c.So, the aperture by making the 3rd electromagnetic valve SV3 changes Become, thus change the degree of engagement of LU clutch 4c.The aperture of the 3rd electromagnetic valve SV3 is by ECU2 control (with reference to Fig. 9).

Further, on LC switching valve 46, connection has electric magnet SO.By excitation and the non-excitation of electric magnet SO, LC switches valve 46 Driven, thus, control the supply destination of hydraulic pressure of 45 from LC and be switched to the 1st or 2LU grease chamber 4d, 4e.Thus, as Upper described hydraulic pressure is fed into 1LU grease chamber 4d, and discharges working oil from 2LU grease chamber 4e, thus becomes engagement state, instead It, by making hydraulic pressure be fed into 2LU grease chamber 4e, and discharge working oil from 1LU grease chamber 4d, become and engage the shape released State.The excitation of electric magnet SO and non-excitation are by ECU2 control (with reference to Fig. 9).

Described belt wheel fluid pressure line PUL is for by hydraulic pilot the 1st and the 2nd belt wheel 11,12 from PH control valve 42 Belt wheel grease chamber 11c, 12c, described belt wheel fluid pressure line PUL is constituted by with lower part: be connected with belt wheel grease chamber 11c via oil circuit 1st pressure regulator valve 47；With the 2nd pressure regulator valve 48 etc. being connected with belt wheel grease chamber 12c via oil circuit.1st and the 2nd pressure regulator valve 47,48 is all It is made up of guiding valve, is connected via the part between oil circuit and PH control valve the 42 and the 1st air relief valve 43 in working connection ML.At oil pump 41 operating time, from PH control valve 42 hydraulic pressure respectively via oil circuit, the 1st and the 2nd pressure regulator valve 47,48 be fed into the 1st and the 2nd Grease chamber 11c, 12c.

Further, from the hydraulic pressure of the 1st air relief valve 43 after by the 4th electromagnetic valve SV4 pressure regulation be fed into the 1st tune Pressure valve 47.Thus, the 1st pressure regulator valve 47 is driven, thus the hydraulic pressure (amount of working oil) being fed into belt wheel grease chamber 11c becomes Change, and then, change the effective diameter of the 1st belt wheel 11.So, changed by the aperture making the 4th electromagnetic valve SV4, thus change The effective diameter of the 1st belt wheel 11.The aperture of the 4th electromagnetic valve SV4 is by ECU2 control (with reference to Fig. 9).

Additionally, from the hydraulic pressure of the 1st air relief valve 43 after by the 5th electromagnetic valve SV5 pressure regulation be fed into the 2nd tune Pressure valve 48.Thus, the 2nd pressure regulator valve 48 is driven, thus, the hydraulic pressure (amount of working oil) being fed into belt wheel grease chamber 12c occurs Change, and then, change the effective diameter of the 2nd belt wheel 12.So, changed by the aperture making the 5th electromagnetic valve SV5, thus change Become the effective diameter of the 2nd belt wheel 12.The aperture of the 5th electromagnetic valve SV5 is by ECU2 control (with reference to Fig. 9).

Described synchronous hydraulic pipeline SYL is for by from the hydraulic pilot lazy-tongs of the 1st air relief valve 43, (deceleration synchronizes Mechanism 35 and speedup lazy-tongs 36) the 1st and the 2nd synchronization grease chamber 35e, 36e, 35f, 36f, described synchronous hydraulic pipeline SYL synchronization oil circuit SL, the 1st switching valve 51, the 2nd switching valve 52 and the 3rd switching valves 53 etc. as shown in Figure 3 are constituted.Such as Fig. 2 institute Showing, the part synchronizing the one end of oil circuit SL and ratio the 1st air relief valve 43 downstream of working connection ML connects, and is synchronizing oil circuit SL Midway, from working connection ML side, be sequentially provided with the 2nd air relief valve 54, Section 1 stream device RE1 and check valve 55.

Hydraulic pressure from the 1st air relief valve 43 is fed into the 1st He under by the 2nd further post-decompression state of air relief valve 54 2nd synchronizes grease chamber 35e, 36e, 35f, 36f.It is fed into the hydraulic pressure (target of the 1st and the 2nd synchronization grease chamber 35e, 36e, 35f, 36f Value) to be set to the hydraulic pressure (desired value) than being supplied to clutch grease chamber 15a, 16a low.This is due to the 1st and the 2nd clutch 15,16 is the friction clutch of fluid pressure type as previously mentioned, and its transmission torque changes according to the hydraulic pressure of supply, so needing Bigger hydraulic pressure.On the other hand, deceleration lazy-tongs 35 and speedup lazy-tongs 36 are by making their gearshift dial Fork 35c, 36c carry out action thus are attached on axle by gear, therefore need not the biggest hydraulic pressure.

Above-mentioned Section 1 stream device RE1 is orifice restriction device, utilizes Section 1 stream device RE1 to be limited in synchronization oil circuit SL and flows The flow of working oil.It addition, Section 1 stream device RE1 can also be adjustable choke.Check valve 55 allows working oil to subtract from the 2nd Pressure valve 54 the lateral 1st and the 2nd synchronizes grease chamber's 35e, 36e, 35f, 36f side inflow, and stops working oil to synchronize from the 1st and the 2nd Lateral 2nd air relief valve 54 side inflow of grease chamber 35e, 36e, 35f, 36f.

Further, as it is shown on figure 3, the ratio check valve 55 synchronizing oil circuit SL leans on the element branches of lazy-tongs side to become the 1st～the 4th Synchronize oil circuit SL1～SL4.1st～the 3rd synchronizes the end of oil circuit SL1～SL3 respectively with the 1st～the 3rd switching valve 51～53 even Connecing, the 4th end synchronizing oil circuit SL4 is connected with the one end of upstream side the 1st auxiliary oil circuit OL1a described later.

1st switching valve 51 is made up of the guiding valve with 4 ports, and the upper connection of 1 in 4 ports has the 1st synchronization oil circuit The end of SL1, remaining 3 are connected to the one end of the 1st～the 3rd oil circuit L1～L3.The other end of 1st oil circuit L1 with Described fuel tank R connects, and the other end of the 2nd and the 3rd oil circuit L2, L3 is connected with the cylinder 36a of speedup lazy-tongs 36.Further, 2nd connects with the 1st and the 2nd grease chamber 36e, 36f respectively with the 3rd oil circuit L2, L3.

2nd switching valve 52 is made up of the guiding valve with 3 ports, and the upper connection of 1 in 3 ports has the 2nd synchronization oil circuit The end of SL2, remaining 2 are connected to the one end of the 4th and the 5th oil circuit L4, L5.The other end of 4th oil circuit L4 with Slow down and connect with the cylinder 35a of lazy-tongs 35, the 4th oil circuit L4 and the 1st grease chamber 35e connection.The other end of 5th oil circuit L5 and the 2 oil circuit L2 connect.Further, as the 2nd switching valve 52, the 3rd switching valve 53 is made up of the guiding valve with 3 ports, at 3 ends In Kou 1 is upper connects the end having the 3rd synchronization oil circuit SL3, is connected to the 6th and the 7th oil circuit L6, L7 on remaining 2 One end.The other end of 6th oil circuit L6 is connected with the cylinder 35a of deceleration lazy-tongs 35, the 6th oil circuit L6 and the 2nd grease chamber 35f connects.Further, the other end of the 7th oil circuit L7 is connected with fuel tank R.

Further, the 1st～the 3rd switching valve 51～53 is connected to the 1st～electric magnet SO1～SO3.By the 1st ～the 3rd electric magnet SO1～SO3 excitation and non-excitation, the 1st～the 3rd switching valve 51～53 is driven into duty and initial State, thus, the stream of the working oil in synchronous hydraulic pipeline SYL is switched.The excitation of the 1st～the 3rd electric magnet SO1～SO3 With non-excitation by ECU2 control (with reference to Fig. 9).Hereinafter, with reference to Figure 12 and Figure 13, in aforementioned LOW pattern and HI pattern based on The switching of the stream that the 1st～the 3rd switching valve 51～53 is carried out illustrates.

[LOW pattern]

In LOW pattern, the 1st electric magnet SO1 is controlled into non-excited state, thus, at the beginning of being driven into by the 1st switching valve 51 Beginning state, thus, as shown in figure 12, make the 1st synchronization oil circuit SL1 and the 3rd oil circuit L3 connection, and make the 2nd oil circuit L2 and the 1st oil Road L1 connects.Thus, it is supplied to, from the 2nd air relief valve 54, the part synchronizing the hydraulic pressure of oil circuit SL and is synchronized oil circuit SL1 via the 1st It is supplied to the 2nd grease chamber 36f of speedup lazy-tongs 36 with the 3rd oil circuit L3.Thus, as shown in the arrow of Figure 12 hollow core, Piston 36b moves together with selector fork 36c to the left, and the working oil in the 1st grease chamber 36e is via the 2nd and the 1st oil circuit L2, L1 are discharged in fuel tank R.

Further, along with selector fork 36c moves to the left as described above, real based on aforesaid speedup lazy-tongs 36 The 2nd existing output shaft the 8 and the 2nd finally drives the link between gear 31 to be released from.It addition, in fig. 12, illustrate with point and go to work Make oil, and utilize the arrow along various oil circuit labellings that the flow direction (action direction of hydraulic pressure) of working oil is shown.This Other accompanying drawings described later also do same process.

Additionally, in LOW pattern, the 2nd electric magnet SO2 is controlled into non-excited state, thus, the 2nd switching valve 52 is driven Move into original state, thus, make the 2nd synchronization oil circuit SL2 and the 4th oil circuit L4 connection, and to the port being connected with the 5th oil circuit L5 Close.Additionally, the 3rd electric magnet SO3 is controlled into excited state, thus, the 3rd switching valve 53 is driven into duty, Thus, make the 6th oil circuit L6 and the 7th oil circuit L7 connection, and the port connecting oil circuit SL3 Tong Bu with the 3rd is closed.

As previously discussed, by driving the 2nd and the 3rd switching valve 52,53, it is fed into synchronization oil circuit from the 2nd air relief valve 54 The residue of the hydraulic pressure in SL synchronizes oil circuit SL2 and the 4th oil circuit L4 via the 2nd and is fed into the 1st oil of deceleration lazy-tongs 35 Room 35e.Thus, as in Figure 12 with shown in hollow arrow, piston 35b moves together with selector fork 35c to the right, and, Working oil in 2nd grease chamber 35f is discharged in fuel tank R via the 6th and the 7th oil circuit L6, L7.Further, along with as described above Selector fork 35c moves to the right, carries out rotating forward gear the 25 and the 1st output realized based on aforesaid deceleration lazy-tongs 35 The link of axle 7.

[HI pattern]

In HI pattern, the 1st electric magnet SO1 is controlled into excited state, thus, the 1st switching valve 51 is driven into work State, thus, as shown in figure 13, make the 1st synchronization oil circuit SL1 and the 2nd oil circuit L2 connection, and make the 3rd oil circuit L3 and the 1st oil circuit L1 connects.Thus, from the 2nd air relief valve 54 be fed into synchronize oil circuit SL hydraulic pressure a part via the 1st synchronize oil circuit SL1 and 2nd oil circuit L2 is fed into the 1st grease chamber 36e of speedup lazy-tongs 36.Thus, as shown in the arrow of Figure 13 hollow core, live Plug 36b move to the right together with selector fork 36c, and the working oil in the 2nd grease chamber 36f via the 3rd and the 1st oil circuit L3, L1 is discharged in fuel tank R.Further, along with selector fork 36c moves to the right as described above, carry out based on aforesaid speedup The 2nd output shaft the 8 and the 2nd realized with lazy-tongs 36 finally drives the link between gear 31.

It addition, in HI pattern, as the situation of LOW pattern, the 2nd electric magnet SO2 is controlled into non-excited state, by This, drive into original state by the 2nd switching valve 52, so that the 2nd synchronizes oil circuit SL2 and the 4th oil circuit L4 and connect, and to the The port that 5 oil circuit L5 connect is closed.Thus, it is supplied to synchronize the part quilt of the hydraulic pressure of oil circuit SL from the 2nd air relief valve 54 It is supplied to the 1st grease chamber 35e of deceleration lazy-tongs 35.

Additionally, the 3rd electric magnet SO3 is controlled into non-excited state, thus, the 3rd switching valve 53 is driven into original state, So that the 3rd synchronizes oil circuit SL3 and the 6th oil circuit L6 connection, and the port being connected with the 7th oil circuit L7 is closed.Thus, It is supplied to the residue synchronizing the hydraulic pressure of oil circuit SL be supplied to via the 3rd synchronization oil circuit SL3 and the 6th oil circuit L6 from the 2nd air relief valve 54 To deceleration the 2nd grease chamber 35f of lazy-tongs 35.So, the hydraulic pressure from the 2nd air relief valve 54 is supplied simultaneously to the 1st and the 2nd Grease chamber 35e, 35f, thus, piston 35b is positioned at neutral position together with selector fork 35c, correspondingly, subtracts based on aforesaid What speed lazy-tongs 35 realized rotate forward gear 25 and counter gear 26 is released from the link of the 1st output shaft 7.

Further, hydraulic supply unit also has pressure accumulater 61.As shown in Figure 4, pressure accumulater 61 has: 2 accumulators 62, the 62, the 1st～the 3rd auxiliary oil circuit OL1～OL3 and for respectively the 1st～the 3rd auxiliary oil circuit OL1～OL3 being carried out the 1st of opening and closing ～the 3rd open and close valve 63～65.Each accumulator 62 is the piston-type accumulator that can accumulate hydraulic pressure, by cylinder 62a, with slide freely Piston 62b that mode is located in cylinder 62a and the spring 62c etc. being made up of compression helical spring is constituted.At cylinder 62a and piston Dividing between 63b has pressure accumulating chamber 62d, piston 62b to be exerted a force to pressure accumulating chamber 62d side by spring 62c.Below, it is referred to as 2 accumulators 62,62 time, its label only records one.This is also same for pressure accumulating chamber 62d.

1st auxiliary oil circuit OL1 is used for making the pressure accumulating chamber 62d of accumulator 62 connect with aforesaid synchronization oil circuit SL, the 1st auxiliary oil circuit OL1 is by being located at upstream side the 1st auxiliary oil circuit OL1a synchronizing oil circuit SL side and downstream control 1 auxiliary oil circuit being located at accumulator 62 side OL1b is constituted.As shown in Figure 3 and Figure 4, the one end of upstream side the 1st auxiliary oil circuit OL1a and the 4th synchronization oil in Tong Bu oil circuit SL Road SL4 connects, and the other end of upstream side the 1st auxiliary oil circuit OL1a is connected with the 1st port 71a described later of the 1st open and close valve 63.

Further, the one end of downstream control 1 auxiliary oil circuit OL1b and the 2nd port 71d described later of the 1st open and close valve 63 connect, The other end is connected with the one end of auxiliary oil circuit OL.The other end of auxiliary oil circuit OL is branched off into two strands, and with accumulator 62 even Connect.So, downstream control 1 auxiliary oil circuit OL1b is connected with accumulator 62 via auxiliary oil circuit OL, and connects with pressure accumulating chamber 62d.

Further, on upstream side and downstream control 1 auxiliary oil circuit OL1a, OL1b, connection has the 1st side walking around the 1st open and close valve 63 Logical oil circuit BL1, is provided with the 1st check valve 91 in the midway of the 1st bleed off circuit BL1.By means of the 1st check valve 91, it is allowed to working oil From synchronize oil circuit SL side via the 1st bleed off circuit BL1 flow into accumulator 62 side, and stop working oil from accumulator 62 side via 1st bleed off circuit BL1 flows into and synchronizes oil circuit SL side.

Described 2nd auxiliary oil circuit OL2 is for making the pressure accumulating chamber 62d of accumulator 62 connect with aforementioned working connection ML, and the described 2nd is secondary Oil circuit OL2 is by being located at upstream side the 2nd auxiliary oil circuit OL2a of working connection ML side and being located at downstream control 2 auxiliary oil circuit of accumulator 62 side OL2b is constituted.As shown in Figure 2 and Figure 4, the one end of upstream side the 2nd auxiliary oil circuit OL2a is connected with working connection ML, the other end with The 1st port 81a described later of the 2nd open and close valve 64 connects.

Further, upstream side the 2nd auxiliary oil circuit OL2a is provided with Section 2 stream device RE2 of the flow limiting working oil.Section 2 stream Although device RE2 is the orifice restriction device as Section 1 stream device RE1, but can also be variable throttler.Additionally, in upstream Connecting on the auxiliary oil circuit OL2a of side the 2nd has the 2nd bleed off circuit BL2 walking around Section 2 stream device RE2, the 2nd bleed off circuit BL2 to be provided with 2nd check valve 92.By means of the 2nd check valve 92, it is allowed to working oil flows into via the 2nd bleed off circuit BL2 from the 2nd open and close valve 64 side Working connection ML side, and stop working oil to flow into the 2nd open and close valve 64 side from working connection ML side via the 2nd bleed off circuit BL2.

Additionally, ratio Section 2 stream device RE2 of upstream side the 2nd auxiliary oil circuit OL2a has the 4th by connection in the part of working connection ML side The one end of auxiliary oil circuit OL4.4th auxiliary oil circuit OL4 is for opening the 1st open and close valve 63 using the hydraulic pressure of working connection ML side as being used for 1st signal pressure described later and guide the 1st open and close valve 63, the other end of the 4th auxiliary oil circuit OL4 is described later with the 1st open and close valve 63 3rd port 71h connects.

Further, the one end of downstream control 2 sidestream road OL2b and the 2nd port 81d described later of the 2nd open and close valve 64 connect, The other end is connected with the one end of aforesaid auxiliary oil circuit OL.Thus, as downstream control 1 auxiliary oil circuit OL1b, downstream control 2 Auxiliary oil circuit OL2b is connected with accumulator 62 via auxiliary oil circuit OL, and connects with pressure accumulating chamber 62d.

The hydraulic pressure of accumulator 62 side is opened the described later 2nd of the 2nd open and close valve 64 as being used for by described 3rd auxiliary oil circuit OL3 Signal pressure and guide the 2nd open and close valve 64, described 3rd auxiliary oil circuit OL3 is by upstream side the 3rd auxiliary oil circuit OL3a being located at accumulator 62 side Constitute with the downstream control 3 auxiliary oil circuit OL3b being located at the 2nd open and close valve 64 side.The one end of upstream side the 3rd auxiliary oil circuit OL3a is with secondary Oil circuit OL connects, and the other end is connected with the 3rd open and close valve 65.The one end of downstream control 3 auxiliary oil circuit OL3b and the 3rd open and close valve 65 Connecting, the other end is connected with the 3rd port 81h described later of the 2nd open and close valve 64.3rd open and close valve 65 is by the electromagnetic valve of normally closed type Constitute, be connected (with reference to Fig. 9) with ECU2.Stop based on from ECU2 to the input driving signal of the 3rd open and close valve 65 and input, the 3 open and close valves 65 are opened and closed, and thus, the 3rd auxiliary oil circuit OL3 are carried out opening and closing.

It follows that with reference to Fig. 4～Fig. 6, the 1st open and close valve 63 is illustrated.It addition, in the diagram, for convenience, The only main composition key element mark label to the 1st open and close valve 63, the label of clipped element.1st open and close valve 63 Being constituted by using the normally close valve that the hydraulic pressure of supply is opened as the 1st signal pressure, the 1st open and close valve 63 has: main part 71, be accommodated in Spool 72, drive division 73 and back-moving spring 74 in main part 71.Hereinafter, with left side and the right side of Fig. 5 be respectively " left " and " right ".

Being provided with aforementioned 1st port 71a on the peripheral part of the right part of main part 71, the 1st port 71a is formed as ring-type, and And be connected with the other end of upstream side the 1st auxiliary oil circuit OL1a.Further, in the inside of the right part of main part, start to depend on from left side Secondary it is provided with valve chamber 71b and valve seat 75.The periphery of valve chamber 71b be provided with extend radially outward 2 intercommunicating pore 71c, 71c.Valve chamber 71b connects with the 1st port 71a via these 2 intercommunicating pores 71c, 71c, and also with upstream side the 1st auxiliary oil circuit OL1a connects.

Above-mentioned valve seat 75 is formed as cylindric, has the 1st intercommunicating pore 75a and the 2nd intercommunicating pore 75b communicated with each other.1st even Through hole 75a is in the upper extension of left and right directions (axis direction), and its left part is expanding in the way of consistent with spool 72.2nd intercommunicating pore 75b is made up of 2 holes, is arranged in the right part of valve seat 75, and extends radially outward from the 1st intercommunicating pore 75a.Valve seat The right-hand member of 75 is closed by wall portion.Further, the peripheral part of the right part of main part 71 is provided with aforementioned 2nd port 71d, the 2nd port 71d is formed as ring-type, and is connected with the one end of downstream control 1 auxiliary oil circuit OL1b.1st intercommunicating pore 75a is via the 2nd intercommunicating pore 75b and connect with the 2nd port 71d, and also connect with downstream control 1 auxiliary oil circuit OL1b.

Described spool 72 is formed as spherical, is incorporated in valve chamber 71b, it is possible in the detent position shown in Fig. 5 and Fig. 6 institute The most freely move between the release position shown.During as it is shown in figure 5, spool 72 is positioned at detent position, its right part with The left part of valve seat 75 abuts, and closes the 1st intercommunicating pore 75a of valve seat 75, and the right part of spool 72 is incorporated in the 1st even In through hole 75a, the left side of spool 72 is towards intercommunicating pore 71c, 71c.Further, as shown in Figure 6, spool 72 is being positioned at release position Time, its left part abuts with the wall portion in the left side of valve chamber 71b, and right part lifts off a seat 75, and thus, the 1st intercommunicating pore 75a opens Putting, the right-hand part of spool 72 is towards intercommunicating pore 71c, 71c.Additionally, open by the 1st intercommunicating pore 75a, valve chamber 71b and the 1st connection Hole 75a connects.

Further, on main part 71, it is formed with incorporating section 71e at its left part, and is formed from central part to right part The bullport 71f that left and right directions extends.Incorporating section 71e and bullport 71f communicates with each other, and bullport 71f connects with valve chamber 71b. Described drive division 73 is made up of base portion 73a and the bar-shaped press section 73b extended to the right from base portion 73a, described drive division 73 The most freely can move at the initial position shown in Fig. 5 with between the operating position shown in Fig. 6.Base portion 73a quilt Being accommodated in the 71e of incorporating section, the outer peripheral face of base portion 73a contacts with the inner peripheral surface of incorporating section 71e.Further, base portion 73a with left and right The sectional area of the area ratio spool 72 in the cross section that direction is vertical is big.Press section 73b is inserted in bullport 71f, its right part Be formed as tapered wedge-like.When drive division 73 is positioned at initial position, the left part of the right part of press section 73b and spool 72 is supported Connect.

Further, base portion 73a is formed with the recess of opening to the left, this recess is provided with described back-moving spring 74. Back-moving spring 74 is made up of compression helical spring, and spool 72 is exerted a force to the right by it across drive division 73.At the 1st open and close valve 63 When closed mode, spool 72 and drive division 73 be respectively held in due to the force of back-moving spring 74 aforementioned detent position and On initial position.The spring constant of back-moving spring 74 is set so as to realize the regulation of the action of pressure accumulater 61 described later Value.Further, the right flank of the incorporating section 71e and base portion 73a of main part 71 space being divided into becomes grease chamber 71g, described 1st signal pressure is fed into this grease chamber 71g.The left part (end of 71e side, incorporating section) of bullport 71f is provided with sealing member (not shown), utilizes this sealing member to stop working oil to be laterally guided hole 71f from grease chamber 71g and flows into.

Further, the peripheral part of the left part of main part 71 is provided with aforementioned 3rd port 71h.As the 1st port 71a, the 3 port 71h are formed as ring-type, and are connected with the other end of the 4th auxiliary oil circuit OL4.Additionally, the left part at main part 71 is formed 2 intercommunicating pores 71i, 71i.Each intercommunicating pore 71i extends radially outward from above-mentioned grease chamber 71g, and with grease chamber 71g and the 3rd Port 71h connects.Grease chamber 71g connects with the 4th auxiliary oil circuit OL4 via intercommunicating pore 71i, 71i and the 3rd port 71h.

Additionally, on main part 71, be provided with the 4th ring-type port 71j between the 1st port 71a and the 3rd port 71h.4th Port 71j via 2 intercommunicating pores 71k, the 71k extended radially to inner side from the 4th port 71j with described bullport 71f Connection.Further, the 4th port 71j connects and has the one end of discharge oil circuit DL, the other end of discharge oil circuit DL and fuel tank R Connect.

It follows that the action of the 1st open and close valve 63 is illustrated with reference to Fig. 5 and Fig. 6.As it is shown in figure 5, in the 1st signal pressure When (working oil) is not supplied to grease chamber 71g, the 1st open and close valve 63 is closed, spool 72 and drive division 73 are by means of multiple The position force of spring 74 and be maintained separately at detent position and initial position, the 1st intercommunicating pore 75a of valve seat 75 is by spool 72 envelope Close.Thus, via the flowing of the working oil between upstream side and downstream control 1 auxiliary oil circuit OL1a, OL1b of the 1st open and close valve 63 Cut-off.

Further, as shown in Figure 6, when making the 1st signal pressure be fed into grease chamber 71g to open the 1st open and close valve 63, Drive division 73 is pressed to the left by means of the 1st signal pressure of supply, thus, as shown in the arrow of this figure hollow core, drives Portion 73 overcomes the active force of back-moving spring 74 to move to the left, is positioned at operating position.Thus, spool 72 is from back-moving spring 74 The lower liberation of effect, thus, spool 72 can move on the release position that the wall portion in the left side with valve chamber 71b abuts freely.Further, Along with drive division 73 is positioned at operating position, the tapered right part of the press section 73b of drive division 73 towards intercommunicating pore 71k, 71k, Thus, valve chamber 71b connects with discharge oil circuit DL via bullport 71f, intercommunicating pore 71k, 71k and the 4th port 71j.

In the case of Gai, when working oil has flowed into valve chamber 71b via upstream side the 1st auxiliary oil circuit OL1a etc., flow into valve chamber 71b's Working oil is discharged to discharge oil circuit DL via bullport 71f, intercommunicating pore 71k, 71k and the 4th port 71j, and spool 72 moves therewith Move release position.Thus, valve chamber 71b and the 1st intercommunicating pore 75a is made to connect, via upstream side the 1st auxiliary oil circuit by aforementioned OL1a etc. flow into the working oil of valve chamber 71b and flow into downstream via the 1st and the 2nd intercommunicating pore 75a, 75b and the 2nd port 71d 1st auxiliary oil circuit OL1b.Further, along with spool 72 moves to release position, bullport 71f is closed by spool 72, therefore, and working oil Discharge to above-mentioned discharge oil circuit DL is stopped.

Further, in the case of above-mentioned such 1st signal pressure is fed into grease chamber 71g, when working oil is via downstream control 1 When auxiliary oil circuit OL1b etc. flow into the 1st intercommunicating pore 75a, spool 72 is pressed by the working oil flowing into the 1st intercommunicating pore 75a, thus spool 72 are positioned at release position.Its result is, via downstream control 1 auxiliary oil circuit OL1b etc. flow into the working oil of the 1st intercommunicating pore 75a via Valve chamber 71b, intercommunicating pore 71c, 71c and the 1st port 71a flow into upstream side the 1st auxiliary oil circuit OL1a.Further, spool 72 is when so When being positioned at release position as described in before, afterwards, as long as not stopping the supply of the 1st signal pressure, spool 72 is just flowed into the 1st even The hydraulic pressure of the working oil of through hole 75a is maintained at release position.

2nd open and close valve 64 is constituted by using the normally close valve that the hydraulic pressure of supply is opened as the 2nd signal pressure, itself and the 1st opening and closing Valve 63 is similarly constituted.Therefore, below, with reference to Fig. 4, Fig. 7 and Fig. 8, structure and action to the 2nd open and close valve 64 are carried out simply Explanation.It addition, in the following description, it is respectively " left " and " right " with left side and the right side of Fig. 7, in the diagram, for facilitating See, only the main composition key element mark label to the 2nd open and close valve 64.As shown in Fig. 4, Fig. 7 and Fig. 8, the 2nd open and close valve 64 has Main part 81, spool 82, drive division 83 and back-moving spring 84.

Main part 81 is provided with aforementioned 1st and the 2nd port 81a, 81d, valve chamber 81b and valve seat 85.These are the 1st and years old 2 port 81a, 81d, valve chamber 81b and the structure of valve seat 85, configuration respectively with the 1st and the 2nd port 71a of the 1st open and close valve 63, 71d, valve chamber 71b and the structure of valve seat 75, configure identical.Valve chamber 81b is via 2 intercommunicating pores 81c, 81c and the 1st port 81a And connect with upstream side the 2nd auxiliary oil circuit OL2a.Further, the 1st intercommunicating pore 85a of valve seat 85 is via the 2nd intercommunicating pore 85b and the 2nd end Mouthful 81d and connect with downstream control 2 auxiliary oil circuit OL2b.

Spool 82 is formed as spherical, is incorporated in valve chamber 81b, it is possible to shown in the detent position shown in Fig. 7 and Fig. 8 The most freely move between release position.As it is shown in fig. 7, when the 2nd open and close valve 64 is closed, spool 82 Being positioned at detent position, the right part of spool 82 abuts with the left part of valve seat 85, and is closed by the 1st intercommunicating pore 85a of valve seat 85, The right part of spool 82 is incorporated in the 1st intercommunicating pore 85a, and the left side of spool 82 is towards intercommunicating pore 81c, 81c.Further, as Shown in Fig. 8, when the 2nd open and close valve 64 is in open mode, spool 82 is positioned at release position, its left part and a left side of valve chamber 81b The wall portion of side abuts, and right part lifts off a seat 85, and thus the 1st intercommunicating pore 85a is opened, and the right-hand part of spool 82 is towards even Through hole 81c, 81c.Additionally, connected by open 1st intercommunicating pore 85a, valve chamber 81b and the 1st intercommunicating pore 85a.

Further, main part 81 being formed with incorporating section 81e and bullport 81f, the structure of both 81e, 81f, configuration are respectively With the incorporating section 71e of the 1st open and close valve 63 and the structure of bullport 71f, configure identical.Drive division 83 drives with the 1st open and close valve 63 Dynamic portion 73 is similarly constituted, it is possible to the initial position shown in Fig. 7 and between the operating position shown in Fig. 8 in the lateral direction from Such as movement.The base portion 83a of drive division 83 is incorporated in the 81e of incorporating section, the outer peripheral face of base portion 83a and the inner circumferential of incorporating section 81e Face contacts.Further, the sectional area of the area ratio spool 82 in the cross section vertical with left and right directions of base portion 83a is big.Additionally, drive division The press section 83b of 83 is inserted in bullport 81f, when drive division 83 is positioned at initial position, and the tapered right side of press section 83b End abuts with the left part of spool 82.

Back-moving spring 84 is made up of compression helical spring, exerts a force spool 82 to the right across drive division 83.In the 2nd opening and closing When valve 64 is closed, spool 82 and drive division 83 are respectively held in aforementioned closing due to the force of back-moving spring 84 On position and initial position.The spring constant of back-moving spring 84 is set so as to realize the action of pressure accumulater 61 described later Setting.Further, the right flank of the incorporating section 81e and base portion 83a of main part 81 space marked off becomes grease chamber 81g, institute State the 2nd signal pressure and be fed into this grease chamber 81g.The left part (end of 81e side, incorporating section) of bullport 81f is provided with sealing Part (not shown), utilizes this sealing member to stop working oil to be laterally guided hole 81f from grease chamber 81g and flows into.

Further, main part 81 is provided with aforementioned 3rd port 81h, the structure of the 3rd port 81h, configuration and the 1st open and close valve The structure of the 3rd port 71h of 63, configure identical.Grease chamber 81g is via 2 intercommunicating pores 81i, 81i and the 3rd port 81h and downstream Side the 3rd auxiliary oil circuit OL3b connects.The 4th port 81j it is additionally provided with on main part 81.The structure of the 4th port 81j, configuration and the 1st opening and closing The structure of the 4th port 71j of valve 63, configuring identical, the 4th port 81j is via 2 intercommunicating pores 81k, 81k with bullport 81f even Logical.Further, connecting and have the one end of discharge oil circuit DL on the 4th port 81j, the other end of discharge oil circuit DL is with fuel tank R even Connect.2nd open and close valve 64 configured as described carries out the action identical with the 1st open and close valve 63, the 2nd open and close valve 64 by by Its grease chamber 81g supplies the 2nd signal pressure and opens, and closes by stopping supply the 2nd signal pressure.

Further, as it is shown in figure 9, represent the rotating speed of electromotor 3 (below, from engine speed sensor 101 to ECU2 input Referred to as " engine speed ") the detection signal of NE, represents the gas pedal of vehicle from accelerator open degree sensor 102 to ECU2 input The detection signal of operational ton (hereinafter referred to as " the accelerator open degree ") AP of (not shown).Further, from vehicle speed sensor 103 to ECU2 Input represents the detection signal of vehicle velocity V P of vehicle.

Additionally, connect on ECU2 have the ignition switch (hereinafter referred to as " IG SW ") 104 of vehicle and brake switch (following, Claim " BR SW ") 105.The operation of the firing key (not shown) that IG SW104 is carried out by driver and be switched on or disconnect, And this on/off signal (ON/OFF signal) is input in ECU2.Further, the brake pedal (not shown) at vehicle is stepped on When stepping on, BR SW105 connects signal (ON signal) to ECU2 input, and the brake pedal (not shown) at vehicle is not trodden on Time, BR SW105 inputs cut-off signal (OFF signal) to ECU2.

ECU2 is made up of microcomputer, and this microcomputer is made up of CPU, RAM, ROM and input/output interface etc. (the most not shown).ECU2 according to the detection signal from above-mentioned various sensors 101～103 and from IG SW104 and The ON/OFF signal of BR SW105, according to the control program being stored in ROM, to electromotor 3 and the action of hydraulic supply unit It is controlled.

Specifically, when IG SW104 is switched in electromotor 3 stops, ECU2 is by making starter (not shown) Work etc., thus start (manual starting) electromotor 3.Further, when IG SW104 is disconnected in electromotor 3 operates, pass through Stop the fuel injection etc. of electromotor 3, thus stop (manually stopping) electromotor 3.Further, when electromotor 3 operates, such as, wrap When condition A containing following regulation～multiple stop conditions of the regulation of D are all set up, spray by stopping the fuel of electromotor 3 Deng, thus stop (being automatically stopped) electromotor 3.

A: output ON signal from IG SW104

B: vehicle velocity V P detected is below setting VPREF

C: the accelerator open degree AP detected is below setting APREF

D: output ON signal from BR SW105

Further, about ECU2, when being automatically stopped of electromotor 3, such as, condition E of following regulation and the rule of F are comprised When in fixed multiple starting conditions again at least 1 sets up, ECU2 starts (the most again starting) electromotor the most again 3.By being controlled etc. performing automatically again starting of electromotor 3 to the injection of the fuel of starter, electromotor 3.

E: trampling by gas pedal, accelerator open degree AP has exceeded setting APREF

F: by the releasing trampled of brake pedal, output OFF signal from BR SW105

Further, ECU2 passes through according to accelerator open degree AP, vehicle velocity V P the 1st and the 2nd electromagnetic valve SV1, SV2 and the 1st～the 3rd Electric magnet SO1～SO3 is controlled, and the action pattern of drive system is set as aforementioned LOW pattern and HI mould selectively Formula.Such as, when accelerator open degree AP is increased dramatically, drastically trampling corresponding to gas pedal, in order to make to be transferred to driving wheel DW Torque be increased dramatically, action pattern is set to LOW pattern.

Additionally, the action of pressure accumulater 61 is controlled by ECU2.Hereinafter, with reference to Figure 14～Figure 20 to being controlled by ECU2 The action of pressure accumulater 61 illustrates.First, with reference to Figure 14, the manual starting to the electromotor 3 connected with IG SW104 After beginning, the action of the pressure accumulater 61 of the period (during manual starting) crushing to electromotor 3 illustrates.

As shown in figure 14, when electromotor 3 manual starting, by the 3rd open and close valve 65 being controlled for closed mode, thus 2 open and close valves 64 are retained as closed mode.Further, along with the manual starting of execution electromotor 3, oil pump 41 is together with electromotor 3 Driven by starter, thus discharge working oil from oil pump 41.From oil pump 41 working oil hydraulic pressure via working connection ML and with Step oil circuit SL (the 4th synchronizes oil circuit SL4) is fed into the 1st upstream side auxiliary oil circuit OL1a, and is fed into via working connection ML Upstream side the 2nd auxiliary oil circuit OL2a.

Further, a part for the hydraulic pressure being supplied to upstream side the 1st auxiliary oil circuit OL1a is fed into the valve chamber of the 1st open and close valve 63 71b, a part for the hydraulic pressure being supplied to upstream side the 2nd auxiliary oil circuit OL2a is fed into the valve chamber 81b of the 2nd open and close valve 64, and The remaining grease chamber 71g being fed into the 1st open and close valve 63 via the 4th auxiliary oil circuit OL4 etc..So, from the hydraulic pressure quilt of oil pump 41 It is supplied to grease chamber 71g as the 1st signal pressure, and at this time point, owing to the hydraulic pressure of oil pump 41 the most fully rises, so the Spool 72 and the drive division 73 of 1 open and close valve 63 are respectively held in closed position and work by means of the active force of back-moving spring 74 Make on position.That is, the 1st open and close valve 63 is held in closed mode.

Further, the surplus of the hydraulic pressure being supplied to upstream side the 1st auxiliary oil circuit OL1a is fed into the 1st bleed off circuit BL1.As front Stating like that, the 1st check valve 91 owing to being located in the 1st bleed off circuit BL1 allows working oil from synchronizing the lateral accumulator of oil circuit SL 62 side inflows, so being supplied to the hydraulic pressure of the 1st bleed off circuit BL1 also via downstream control 1 auxiliary oil circuit OL1b and auxiliary oil circuit OL quilt It is supplied to the pressure accumulating chamber 62d of accumulator 62.As previously discussed, when electromotor 3 manual starting, from oil pump 41 hydraulic pressure via Upstream side the 1st auxiliary oil circuit OL1a, the 1st bleed off circuit BL1, downstream control 1 auxiliary oil circuit OL1b, auxiliary oil circuit OL are fed into accumulator In 62 and accumulated.

It follows that the action of the pressure accumulater 61 when operating electromotor 3 with reference to Figure 15～Figure 18 illustrates.Pressure accumulation fills Put 61 and there is action pattern when normal mode, safe mode and rapid mode of operation operate as electromotor 3.Normal mode It it is the action pattern commonly used when operating of electromotor 3.

As shown in figure 15, in normal mode, by being controlled by the 3rd open and close valve 65 as closed mode, the 2nd open and close valve 64 is protected It is held in closed mode.Further, identical with situation during aforesaid electromotor 3 manual starting, from the hydraulic pressure of oil pump 41 via upper Trip side the 2nd auxiliary oil circuit OL2a and the 4th oil circuit OL4 is fed into the grease chamber 71g of the 1st open and close valve 63 as the 1st signal pressure.This situation Under, different from situation during electromotor 3 manual starting, owing to the hydraulic pressure of oil pump 41 fully rises, so by supplying to grease chamber 71g To the 1st signal pressure, drive division 73 overcomes the active force of back-moving spring 74 to move to operating position, the most concomitantly, and spool 72 In release position, its result is, the 1st open and close valve 63 is held in open mode.

Further, in normal mode, the 1st open and close valve 63 is held in open mode as described above, thus, from oil pump The hydraulic pressure of 41 is via upstream side the 1st auxiliary oil circuit OL1a, the 1st open and close valve the 63, the 1st bleed off circuit BL1, downstream control 1 auxiliary oil circuit OL1b, auxiliary oil circuit OL are fed in accumulator 62 and by accumulation.

Additionally, in normal mode, along with the switching of the action pattern of drive system, when the hydraulic pressure from oil pump 41 is same Step mechanism (deceleration lazy-tongs 35, speedup lazy-tongs 36) consumes, and the hydraulic pressure thus synchronizing oil circuit SL side becomes than storage The hydraulic pressure of energy device 62 side is low.Further, as described above, the company between ratio and upstream side the 1st oil circuit OL1a synchronizing oil circuit SL The portion that connects leans on the part of working connection ML side to be provided with Section 1 stream device RE1, thus, leans on the liquid of lazy-tongs side than Section 1 stream device RE1 The change of pressure is smaller on the impact of working connection ML side.Thus, as shown in figure 16, the hydraulic pressure being accumulated in accumulator 62 is along with same The consumption to hydraulic pressure of the step mechanism, and via auxiliary oil circuit OL, downstream control 1 auxiliary oil circuit OL1b, the 1st open and close valve 63, upstream side the 1st pair Oil circuit OL1a is fed into synchronization oil circuit SL, is also supplied to lazy-tongs.In the case of Gai, owing to utilizing aforementioned check valve 55 to hinder Only working oil from lazy-tongs side via synchronizing oil circuit SL to the 2nd air relief valve 54 side inflow, so being accumulated in accumulator 62 Hydraulic pressure will not be fed into the part leaning on working connection ML side than check valve 55.

It follows that the action of the pressure accumulater 61 under safe mode is illustrated with reference to Figure 17.Although from oil pump 41 Hydraulic pressure be fed into lazy-tongs, but such as, as the gear of the object linked and the rotating speed of axle the most inconsistent and When causing gear not link with axle, anti-due to piston 35b, 36b of aforesaid lazy-tongs are pushed back from gear side effect Active force, therefore, the hydraulic pressure of lazy-tongs side increases, and becomes excessive sometimes.Safe mode is in order to when electromotor 3 operates Prevent the hydraulic pressure of lazy-tongs side from becoming excessive because of above-mentioned reason, and the hydraulic pressure of lazy-tongs side is discharged into clutch mechanism The action pattern of (the 1st and the 2nd clutch 15,16) side.

In safe mode, identical with the situation of normal mode, the 3rd open and close valve 65 is controlled as closed mode.Further, as Shown in Figure 17, in safe mode, identical with the situation of normal mode, the 1st open and close valve the 63 and the 1st check valve 91 is held in be beaten Open state.Therefore, along with the hydraulic pressure of lazy-tongs side becomes bigger for above-mentioned reasons, the hydraulic pressure of lazy-tongs side is via upper The secondary oil of trip side the 1st auxiliary oil circuit OL1, the 1st open and close valve the 63, the 1st bleed off circuit BL1, downstream control 1 auxiliary oil circuit OL1b, downstream control 2 Road OL2b is fed into the 1st intercommunicating pore 85a of the 2nd open and close valve 64.

Structure according to aforesaid 2nd open and close valve 64 can be clear and definite, is fed into the hydraulic pressure of the 1st intercommunicating pore 85a with by valve The mode effect that core 82 presses to side, release position.In contrast, the hydraulic pressure of lazy-tongs side is bigger, thus, from synchronization The hydraulic pressure that mechanism side is supplied to the 1st intercommunicating pore 85a is bigger, so by the effect of this hydraulic pressure, spool 82 overcomes back-moving spring The active force of 84 moves to release position, and the 2nd open and close valve 64 becomes open mode.The most concomitantly, the 1st intercommunicating pore it is supplied to The hydraulic pressure of 85a is fed into upstream side the 2nd auxiliary oil circuit OL2a via valve chamber 81b etc..

A part for the hydraulic pressure being supplied to upstream side the 2nd auxiliary oil circuit OL2a is fed into the 1st via the 4th auxiliary oil circuit OL4 etc. The grease chamber 71g of open and close valve 63.Further, as described above, utilization is located at Section 2 stream device walking around upstream side the 2nd auxiliary oil circuit OL2a The 2nd check valve 92 on the 2nd bleed off circuit BL2 of RE2, it is allowed to working oil from the 2nd open and close valve 64 side via the 2nd bleed off circuit BL2 is to working connection ML side inflow.Therefore, being mainly supplied to of surplus of the hydraulic pressure of upstream side the 2nd auxiliary oil circuit OL2a it is supplied to To the 2nd bleed off circuit BL2, also it is fed into clutch mechanism side via upstream side the 2nd auxiliary oil circuit OL2a, working connection ML.

As previously discussed, in safe mode, the 2nd open and close valve 64 works as relief valve, the hydraulic pressure of lazy-tongs side Via upstream side the 1st auxiliary oil circuit OL1a, the 1st open and close valve the 63, the 1st bleed off circuit BL1, downstream control 1 auxiliary oil circuit OL1b, downstream 2nd auxiliary oil circuit OL2b, the 2nd open and close valve 64, upstream side the 2nd auxiliary oil circuit OL2a, the 2nd bleed off circuit BL2, working connection ML be discharged into from Clutch mechanism side.Become bigger it addition, the action under safe mode is as the hydraulic pressure of lazy-tongs side and automatically carries out. In other words, when electromotor 3 operates, action pattern is the hydraulic pressure according to lazy-tongs side to the switching of safe mode and automatically carries out 's.

It follows that the action of the pressure accumulater 61 under described rapid mode of operation is illustrated with reference to Figure 18.Work rapidly Operation mode is such action pattern: when electromotor 3 operates, when request makes lazy-tongs work rapidly, by more high pressure The hydraulic pressure supply of clutch mechanism side is to lazy-tongs.Carry out time this request is such as following.

That is, in HI pattern, when the dosage of accelerator open degree AP is bigger than setting (when gas pedal is trampled suddenly), for Action pattern is switched to rapidly LOW pattern to make the torque being delivered to driving wheel DW be increased dramatically with corresponding, And ask to make lazy-tongs work rapidly.Or, in HI pattern, and, in the case of vehicle velocity V P is higher than setting, BR SW105 is when disconnection is switched on (when brake pedal is trampled), in order to action pattern is rapidly switched to LOW pattern So that bigger engine braking acts on driving wheel DW, and ask to make lazy-tongs work rapidly.

In rapid mode of operation, the 3rd open and close valve 65 is controlled as open mode, in order to the 2nd open and close valve 64 is opened.By This, as shown in figure 18, the hydraulic pressure of accumulator 62 side is via upstream side the 3rd auxiliary oil circuit OL3a, the 3rd open and close valve 65, downstream control 3 pair Oil circuit OL3b, is supplied to the grease chamber 81g of the 2nd open and close valve 64 as the 2nd signal pressure.Thus, as described above, along with drive division 83 move to operating position, and spool 82 moves to release position, and the 2nd open and close valve 64 is opened.Further, with the situation of normal mode Identical, by supplying the 1st signal pressure to the grease chamber 71g of the 1st open and close valve 63, the 1st open and close valve 63 is held in open mode.

As described above, the hydraulic pressure being fed into clutch mechanism is higher than the hydraulic pressure being fed into lazy-tongs.Therefore, exist Rapidly in mode of operation, along with above-mentioned such 1st and the 2nd open and close valve 63,64 is opened, the higher hydraulic pressure warp of working connection ML side By upstream side the 2nd auxiliary oil circuit OL2a, the 2nd open and close valve 64, downstream control 2 auxiliary oil circuit OL2b, downstream control 1 auxiliary oil circuit OL1b, the 1st Open and close valve 63, upstream side the 1st auxiliary oil circuit OL1a, synchronization oil circuit SL are fed into lazy-tongs.

It follows that the action of the pressure accumulater 61 when being automatically stopped electromotor 3 with reference to Figure 19 illustrates.Such as Figure 19 institute Showing, when electromotor 3 is automatically stopped, being controlled by the 3rd open and close valve 65 as closed mode, thus, the 2nd open and close valve 64 is held in pass Closed state.Further, along with being automatically stopped of electromotor 3, also stop from working oil from the discharge of oil pump 41, therefore, the 1st signal Pressure is no longer fed into the 1st open and close valve 63, and thus, the 1st open and close valve 63 is also held in closed mode.Additionally, utilize the 1st unidirectional Valve 91, stop working oil from accumulator 62 side via the 1st bleed off circuit BL1 to synchronize oil circuit SL side inflow.As previously discussed, exist When electromotor 3 is automatically stopped, the 1st～the 3rd auxiliary oil circuit OL1～OL3 is closed by the 1st～the 3rd open and close valve 63～65 respectively, and the 1 bleed off circuit BL1 is closed by the 1st check valve 91, and thus, the hydraulic pressure being accumulated in when electromotor 3 operates in accumulator 62 is protected Hold.

Key element during it addition, when electromotor 3 is automatically stopped and manually stop, beyond pressure accumulater 61, i.e. the 1st and 2LU grease chamber 4d, 4e, belt wheel grease chamber 11c, 12c, clutch grease chamber 15a, 16a, the 1st and the 2nd synchronize grease chamber 35e, 36e, 35f, 36f, working connection ML, clutch hydraulic pressure pipeline CLL, LU fluid pressure line LUL, belt wheel fluid pressure line PUL, synchronous hydraulic pipeline SYL Interior working oil is discharged in fuel tank R via discharge oil circuit (not shown).

It follows that the action of the pressure accumulater 61 when automatically again starting electromotor 3 with reference to Figure 20 illustrates.Start When machine 3 starts automatically again, the 3rd open and close valve 65 is controlled as open mode, in order to the 2nd open and close valve 64 is opened.Thus, such as figure Shown in 20, a part for the hydraulic pressure being accumulated in accumulator 62 is via auxiliary oil circuit OL, upstream side the 3rd auxiliary oil circuit OL3a, the 3rd opening and closing Valve 65, downstream control 3 auxiliary oil circuit OL3b, be supplied to the grease chamber 81g of the 2nd open and close valve 64 as the 2nd signal pressure, and thus, the 2nd opens Valve closing 64 is opened.

Further, when electromotor 3 starts automatically again, owing to the hydraulic pressure of oil pump 41 the most fully rises, accumulator 62 side Hydraulic pressure higher, therefore, be accumulated in surplus the opening along with above-mentioned 2nd open and close valve 64 of the hydraulic pressure in accumulator 62, and via Auxiliary oil circuit OL, downstream control 2 auxiliary oil circuit OL2b, the 2nd open and close valve 64 are fed into upstream side the 2nd auxiliary oil circuit OL2a.It is supplied to A part for the hydraulic pressure of trip side the 2nd auxiliary oil circuit OL2a is supplied to the 1st open and close valve via the 4th oil circuit OL4 etc. as the 1st signal pressure The grease chamber 71g of 63, the surplus of the hydraulic pressure being supplied to upstream side the 2nd auxiliary oil circuit OL2a is fed into clutch via working connection ML etc. Mechanism.In the case of Gai, also identical with the situation of safe mode, it is supplied to the surplus of the hydraulic pressure of upstream side the 2nd auxiliary oil circuit OL2a Major part is fed into working connection ML side via the 2nd bleed off circuit BL2 etc..

Further, as described above, the part being accumulated in the hydraulic pressure in accumulator 62 is supplied to as the 2nd signal pressure 2 open and close valves 64, thus the 2nd open and close valve 64 is opened, thus the surplus being accumulated in the hydraulic pressure in accumulator 62 is fed into the 1st opening and closing The grease chamber 71g of valve 63, clutch mechanism.Thus, based on the 1st signal pressure from accumulator 62 side become than reset by pressure The active force of spring 74 is little, so spool 72 and drive division 73 are maintained separately in closing by means of the force of back-moving spring 74 Position and initial position, the 1st open and close valve 63 is held in closed mode.

Further, when electromotor 3 manually stops, in order to the 2nd open and close valve 64 is opened so that being accumulated in accumulator 62 Hydraulic pressure is discharged, and temporarily controls the 3rd open and close valve 65 to open mode.Thus, automatically again start with electromotor 3 by carrying out Time the identical action of situation, the hydraulic pressure being accumulated in accumulator 62 is discharged to clutch mechanism side.Electromotor 3 later When manually stopping, the 3rd open and close valve 65 is closed.

It addition, when electromotor 3 manually stops, not carrying out the control of opening of the 3rd above-mentioned open and close valve 65, and carry out and send out The action that when motivation 3 is automatically stopped, the situation of (Figure 19) is identical, thus, maintains the hydraulic pressure being accumulated in accumulator 62, and, Can also be when electromotor 3 manual starting, identical the moving of situation of (Figure 20) during by carrying out automatically again starting with electromotor 3 Make, by the hydraulic pressure supply that is accumulated in accumulator 62 to clutch mechanism.

Further, the various key elements in present embodiment are as follows with the corresponding relation of the various key elements in the present invention.That is, this reality Execute the 2nd driving force transmission mechanism that the 1st and the 2nd clutch 15,16 in mode is equivalent in the present invention, and, this embodiment party Deceleration lazy-tongs 35 and speedup lazy-tongs 36 in formula are equivalent to the 1st driving force transmission mechanism in the present invention.And And, the synchronization oil circuit SL in present embodiment is equivalent to the 1st main line in the present invention, and, the main oil in present embodiment Road ML is equivalent to the 2nd main line in the present invention.

Additionally, the 1st～the 3rd auxiliary oil circuit OL1～OL3 in present embodiment be respectively equivalent in the present invention the 1st～the 3rd Looped pipeline road, and, the auxiliary oil circuit OL in present embodiment is equivalent to the 1st～the 3rd looped pipeline road in the present invention.Further, this enforcement The 1st bleed off circuit BL1 in mode is equivalent to the bypass line in the present invention, and, the 1st check valve 91 in present embodiment Be equivalent to the check valve in the present invention.

As shown above, according to present embodiment, from the hydraulic pressure of the oil pump 41 with electromotor 3 as power source via synchronization Oil circuit SL etc. is fed into lazy-tongs (deceleration lazy-tongs 35, speedup lazy-tongs 36), and, via working connection ML Etc. being fed into clutch mechanism (the 1st and the 2nd clutch 15,16).Further, accumulator 62 is respectively via the 1st and the 2nd auxiliary oil circuit OL1, OL2 (upstream side and downstream control 1 auxiliary oil circuit OL1a, OL1b, upstream side and downstream control 2 auxiliary oil circuit OL2a, OL2b) and Connect with Tong Bu oil circuit SL (the 4th synchronizes oil circuit SL4) and working connection ML.

Additionally, the 1st open and close valve 63 that the 1st auxiliary oil circuit OL1 carries out opening and closing is made up of normally close valve, and, with via main oil The hydraulic pressure of road ML supply is opened as the 1st signal pressure.Additionally, the 2nd auxiliary oil circuit OL2 is carried out the 2nd open and close valve 64 of opening and closing by Normally close valve constitute, and via the 3rd auxiliary oil circuit OL3 (upstream side and downstream control 3 auxiliary oil circuit OL3a, OL3b) with accumulator 62 Connect, open as the 2nd signal pressure using the hydraulic pressure via the 3rd auxiliary oil circuit OL3 supply.Further, the 3rd auxiliary oil circuit OL3 passes through the 3rd Open and close valve 65 is opened and closed.

Based on the above, as the explanation done with reference to Figure 15, when electromotor 3 operates, along with from oil pump 41 Hydraulic pressure be fed into lazy-tongs and clutch mechanism, the 1st open and close valve 63 is using the hydraulic pressure that supplies via working connection ML as the 1st Signal pressure and open.Thus, when electromotor 3 operates, from oil pump 41 hydraulic pressure a part via synchronize oil circuit SL, the 1st Auxiliary oil circuit OL1 is fed in accumulator 62 and by accumulation.In the case of Gai, as the explanation done with reference to Figure 16, remove Beyond oil pump 41, accumulator 62 also connects with lazy-tongs, is therefore consumed by lazy-tongs along with hydraulic pressure, it is possible to will be accumulated in Hydraulic pressure supply in accumulator 62 is to lazy-tongs.

Further, as the explanation done with reference to Figure 19, when electromotor 3 is automatically stopped, with electromotor 3 as power source Oil pump 41 also stops, thus also stops from the supply of the 1st signal pressure of oil pump 41, so the 1st opening and closing being made up of normally close valve Valve 63 cuts out.Further, by being controlled by the 3rd open and close valve 65 as closed mode, the 2nd open and close valve 64 is held in closed mode.This Sample, when electromotor 3 is automatically stopped, the 1st～the 3rd auxiliary oil circuit OL1～OL3 is closed by the 1st～the 3rd open and close valve 63～65 respectively, Thus, the hydraulic pressure being accumulated in accumulator 62 before this is maintained.In the case of Gai, along with electromotor 3 is automatically stopped, the 1st opening and closing Valve 63 is automatically switched off, and there is no need for the spy of the 1st open and close valve 63 keeping the hydraulic pressure being accumulated in accumulator 62 Other control.

Additionally, as the explanation done with reference to Figure 20, when electromotor 3 starts automatically again, the 3rd open and close valve 65 is controlled It is made as open mode.Thus, by a part for the hydraulic pressure being accumulated in accumulator 62 is supplied to the 2nd as the 2nd signal pressure Open and close valve 64, opens the 2nd open and close valve 64, therefore, it is possible to the surplus by the hydraulic pressure being accumulated in accumulator 62 is secondary oily via the 2nd Road OL2, working connection ML are supplied to clutch mechanism.

Further, as the explanation done with reference to Figure 17, when electromotor 3 operates, the hydraulic pressure in lazy-tongs side becomes Time bigger, make this hydraulic action in the spool 82 of the 2nd open and close valve 64, thereby, it is possible to the 2nd open and close valve 64 is opened, and then can The hydraulic pressure of lazy-tongs side is discharged into clutch mechanism side.Therefore, when electromotor 3 operates, it is possible to prevent lazy-tongs side Hydraulic pressure become excessive, so excessive hydraulic pressure will not be accumulated in accumulator 62, therefore, it is possible to omit aforesaid conventional subtracting Pressure accumulator.Further, in the case of being somebody's turn to do, along with the hydraulic pressure of lazy-tongs side becomes relatively big, the 2nd open and close valve 64 automatically opens up, because of This, it is not necessary to is for discharging the special control of the 2nd open and close valve 64 of the hydraulic pressure of lazy-tongs side.

Further, as described above, the hydraulic supply unit of present embodiment has following function: at electromotor 3 In accumulator 62, the function of hydraulic pressure is accumulated during operating；Hydraulic pressure is supplied from accumulator 62 to lazy-tongs when electromotor 3 operates Function；Prevent from being accumulated in the function of excessiveization of the hydraulic pressure in accumulator 62；Electromotor is kept when electromotor 3 is automatically stopped The function of the hydraulic pressure being accumulated in accumulator 62 during 3 operating；And by automatic at electromotor 3 for the hydraulic pressure that is accumulated in accumulator 62 Being supplied to the function of clutch mechanism when again starting, the hydraulic supply unit of present embodiment has than conventional hydraulic pressure supply The function that device is many.Additionally, accumulator 62 is also used as the accumulator supplying hydraulic pressure to lazy-tongs and clutch mechanism, the 2nd Open and close valve 64 is also used as the accumulation of the hydraulic pressure for controlling accumulator 62 and the control valve of releasing and for discharging lazy-tongs The relief valve of the hydraulic pressure of side, therefore, it is possible to utilize less parts to realize more function.

As previously discussed, according to the hydraulic supply unit of present embodiment, it is possible to omit the accumulator of conventional decompression, And less parts can be utilized to realize more function, and then, it is possible to realize the miniaturization that device is overall.

Further, the hydraulic pressure that the hydraulic pressure of clutch mechanism is set to than being supplied to lazy-tongs it is supplied to high, as with reference to figure 18 explanations done are such, and when electromotor 3 operates, when request makes lazy-tongs work rapidly, the 2nd open and close valve 64 is beaten Open.Thereby, it is possible to by the higher hydraulic pressure supply of clutch mechanism side to lazy-tongs, therefore, it is possible to make same according to this request Step mechanism works rapidly.Additionally, along with the supply of this hydraulic pressure, it is possible to discharge the air being included in working oil, therefore, it is possible to from Accumulator 62 supplies hydraulic pressure fully to lazy-tongs and clutch mechanism.

Further, the 1st bleed off circuit BL1 and the 1st auxiliary oil circuit OL1 that walk around the 1st open and close valve 63 connect, the 1st bleed off circuit BL1 It is provided with the 1st check valve 91.Further, the 1st check valve 91 is utilized, it is allowed to working oil bypasses via the 1st from gearshift oil circuit SL side Oil circuit BL1 is to accumulator 62 side inflow.So, when electromotor manual starting, as the explanation done with reference to Figure 14, even if The hydraulic pressure of oil pump 41 the most fully rise and cause the 1st open and close valve 63 be not turned on such in the case of, it is also possible to will be from The hydraulic pressure of oil pump 41 is supplied to accumulator 62 via the 1st bleed off circuit BL1 etc. and accumulates, therefore, it is possible to rapidly to accumulation of energy Hydraulic pressure accumulated by device 62.Further, utilize the 1st check valve 91, stop working oil from accumulator 62 side via the 1st bleed off circuit BL1 to Synchronizing oil circuit SL side inflow, therefore, being accumulated in the hydraulic pressure in accumulator 62 will not be other via the 1st when electromotor 3 is automatically stopped Logical oil circuit BL1 is discharged into synchronization oil circuit SL side.

It addition, the present invention is not limited to the embodiment having been described above, it is possible to implement in a wide variety of ways.Example As, in embodiments, although oil pump 41 is gear pump, but can also be the suitable of other with electromotor as power source Pump, such as, can also be vane pump, trochoid pump.Further, in embodiments, although the quantity of accumulator 62,62 is 2, But can also be arbitrary.Additionally, in embodiments, although accumulator 62 is piston-type, but as long as can accumulate Hydraulic pressure, such as, can also be leather bag type.Further, in embodiments, although utilize back-moving spring 74 across drive division 73 pairs of spools 72 exert a force, but directly can also exert a force spool.In the case of Gai, spool be pressed by the 1st signal pressure across drive division Press thus be positioned at release position.For above spool 72, drive division 73 and the deformation of back-moving spring 74, for the 2nd opening and closing The spool 82 of valve 64, drive division 83 and back-moving spring 84 are also identical.

Additionally, in embodiments, although the 1st～the 3rd auxiliary oil circuit OL1～OL3 and accumulator 62 are via auxiliary oil circuit OL Connect, but auxiliary oil circuit OL can also be omitted, and alongside one another and be directly connected.Further, in embodiments, it is supplied to The hydraulic pressure that the hydraulic pressure of clutch mechanism is set to than being supplied to lazy-tongs is high, but it is also possible in contrast, is supplied to The hydraulic pressure that the hydraulic pressure of lazy-tongs is set to than being supplied to clutch mechanism is high, or, it is also possible to it is set to mutually the same Height.Additionally, in embodiments, although the 1st bleed off circuit BL1 walking around the 1st open and close valve 63 is connected to the 1st auxiliary oil circuit OL1, but the 1st bleed off circuit BL1 can also be omitted.

Further, in embodiments, although it is synchrodrive respectively that the 1st and the 2nd driving force in the present invention is transferred to device Structure and clutch mechanism, but can also be other the suitable mechanism for transmitting the driving force from electromotor, such as It is torque-converters 4, buncher 5.Additionally, in embodiments, as the power source of oil pump 41, although have employed and send out for gasoline The electromotor 3 of motivation, but diesel engine, LPG electromotor can also be used.Further, in embodiments, it is by this Bright hydraulic supply unit is applied to the example of the drive system of vehicle, but can also be applied to other suitable mechanism In, the drive system etc. of such as boats and ships.The deformation relating to above embodiment can appropriately combined be applied.Furthermore it is possible to In the range of the purport of the present invention, the structure of details is suitably changed.

Label declaration

3: electromotor

15: the 1 clutches (the 2nd driving force transmission mechanism)

16: the 2 clutches (the 2nd driving force transmission mechanism)

35: slow down with lazy-tongs (the 1st driving force transmission mechanism)

36: speedup is with lazy-tongs (the 1st driving force transmission mechanism)

41: oil pump

ML: working connection (the 2nd main line)

SL: synchronize oil circuit (the 1st main line)

62；Accumulator

63: the 1 open and close valves

64: the 2 open and close valves

65；3rd open and close valve

OL1: the 1 auxiliary oil circuit (the 1st looped pipeline road)

OL2: the 2 auxiliary oil circuit (the 2nd looped pipeline road)

OL3: the 3 auxiliary oil circuit (the 3rd looped pipeline road)

OL: auxiliary oil circuit (the 1st looped pipeline road, the 2nd looped pipeline road, the 3rd looped pipeline road)

82: spool

BL1: the 1 bleed off circuit (bypass line)

91: the 1 check valves (check valve)

Claims (4)

1. a hydraulic supply unit, its by hydraulic pressure supply to be used for transmit from electromotor driving force fluid pressure type the 1st Driving force transmission mechanism and the 2nd driving force transmission mechanism, it is characterised in that

Described hydraulic supply unit has:

Oil pump, it is with described electromotor as power source, for driving via the described in the 1st main line and the 2nd supervisor's road direction the 1st respectively Force transfer mechanism and the 2nd driving force transmission mechanism supply hydraulic pressure；

Accumulator, it can accumulate hydraulic pressure, respectively via the 1st main line and the 2nd described in the 1st looped pipeline road and the 2nd looped pipeline Lu Eryu Main line connects；

1st open and close valve, it is made up of normally close valve, described 1st looped pipeline road carries out opening and closing, and is connected with described 2nd main line, Open using the hydraulic pressure via the 2nd main line supply as the 1st signal pressure；

2nd open and close valve, it is made up of the normally close valve with spool, described 2nd looped pipeline road is carried out opening and closing, is arranged to described valve Core is pressed to opening direction by means of the hydraulic pressure from described accumulator side, and the 2nd open and close valve is via the 3rd looped pipeline road And be connected with described accumulator, open using the hydraulic pressure via the 3rd looped pipeline road supply as the 2nd signal pressure；

And the 3rd open and close valve, it is for carrying out opening and closing to described 3rd looped pipeline road.

Hydraulic supply unit the most according to claim 1, it is characterised in that

Hydraulic pressure to described 2nd driving force transmission mechanism supply is set to ratio to described 1st driving force transmission mechanism supply Hydraulic pressure is high,

When described electromotor operates, when rated condition is set up, by described 3rd open and close valve is opened, described 2nd signal pressure It is fed into described 2nd open and close valve, to be opened by described 2nd open and close valve.

Hydraulic supply unit the most according to claim 1 and 2, it is characterised in that

When described engine stop, by described 3rd open and close valve is maintained at closed mode, described 2nd signal presses to described The supply of the 2nd open and close valve is stopped, so that described 2nd open and close valve is maintained at closed mode,

When the described electromotor of halted state is started, by being opened by described 3rd open and close valve, described 2nd signal pressure is supplied It is given to described 2nd open and close valve, to be opened by described 2nd open and close valve.

4. according to the hydraulic supply unit described in any one in claims 1 to 3, it is characterised in that

Described hydraulic supply unit also has:

Bypass line, it is connected with described 1st looped pipeline road, walks around described 1st open and close valve；And

Check valve, it is located in this bypass line, it is allowed to working oil flows into via described bypass line from described 1st supervisor's trackside Described accumulator side, and stop working oil to flow into described 1st supervisor's trackside from described accumulator side via described bypass line.