CN107035684A - Vehicle hydraulic device - Google Patents
Vehicle hydraulic device Download PDFInfo
- Publication number
- CN107035684A CN107035684A CN201610811905.6A CN201610811905A CN107035684A CN 107035684 A CN107035684 A CN 107035684A CN 201610811905 A CN201610811905 A CN 201610811905A CN 107035684 A CN107035684 A CN 107035684A
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- Prior art keywords
- oil
- pump
- working fluid
- pressure
- passage
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
- F04C2/3445—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the vanes having the form of rollers, slippers or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/06—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
- F01C21/0818—Vane tracking; control therefor
- F01C21/0854—Vane tracking; control therefor by fluid means
- F01C21/0863—Vane tracking; control therefor by fluid means the fluid being the working fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/3446—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2210/00—Fluid
- F04C2210/20—Fluid liquid, i.e. incompressible
- F04C2210/206—Oil
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/18—Pressure
- F04C2270/185—Controlled or regulated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/58—Valve parameters
- F04C2270/585—Controlled or regulated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
A kind of vehicle hydraulic device is disclosed, it is provided with electric oil pump (48) and shuttle valve (50) so that when starting, by being applied to the back pressure of blade from electric oil pump, vane pump (14) can also operate smooth.Even if when the oil pressure for the working fluid discharged from the vane pump (14) exceedes the back pressure in blade containment groove, the working fluid is also from vane pump oil drain passage (30) flow direction back of the body pressure oil passage (36) so that the blade is not pushed into the holding tank.Therefore, it is possible to reduce during the operation of the vane pump due to the fluctuation of the discharge rate of the vane pump caused by the fluctuation in the oil pressure of vane pump oil drain passage (30).
Description
Technical field
The present invention relates to a kind of vehicle hydraulic device of the vane pump with as oil pressure source, and more particularly, to
Vehicle hydraulic dress that is smooth and seldom being influenceed during the operation of vane pump by the oil pressure of oil drain passage is operated during a kind of starting
Put.
Background technology
Vane pump driven by the engine, in the pump case of the inner circumferential cam surface with substantially elliptical, for example, having
By the multiple blade institutes assembled rotor on the rotary shaft and be radially assembled in the blade containment groove being arranged in the rotor
The variable pump chamber of multiple discharge capacities limited.As blade rotates, the volume of pump chamber while the inner peripheral surface of pump case is crushed on
Change and discharge force is applied to working fluid.
The power of inner peripheral surface for blade to be pressed in pump case is pressed in the pump in rotor from rotary centrifugal force and by blade
The back pressure of the inner peripheral surface of housing is obtained.The working fluid discharged from vane pump is used to obtain the back pressure.If however, the rotation of rotor
Rotary speed is low when vane pump is started, then pump possibly can not be started swimmingly.Because, even if when the centrifugal force of rotating vane
When being combined with the back pressure produced by the working fluid as being discharged from vane pump, blade is pressed in the power of inner peripheral surface of pump case too
It is small.
In order to solve this problem, Japanese patent application discloses No. 2008-286108 and discloses a kind of be used in blade
The technology of the back pressure in vane pump is improved when pumping up dynamic.Specifically, the oil pressure for the working fluid discharged from electric oil pump passes through the back of the body
Pressure oil passage is fed in the blade containment groove being arranged in rotor, so that being radially assembled to the blade to be formed in the rotor
Multiple blades in holding tank are crushed on the inner peripheral surface of pump case.Therefore, the vane pump proposed is also grasped when starting
Make smooth.
In JP 2008-286108 A vane pump, if the discharge pressure of vane pump exceedes the back of the body in blade containment groove
Pressure, then blade may be pulled in holding tank, and may reduce the pressure for the working fluid discharged from vane pump.
The content of the invention
Find out under the background of these situations, the invention provides a kind of vehicle hydraulic device with vane pump,
Wherein as blade rotates while the inner peripheral surface of pump case is crushed on, the volume of the pump chamber of the vane pump changes to incite somebody to action
Discharge force is applied to working fluid.Vehicle according to the invention hydraulic means also operated when starting it is smooth, and in leaf
Seldom influenceed during the operation of piece pump by the pressure fluctuation of oil drain passage.
According to the present invention a scheme there is provided it is a kind of including vane pump, oil pressure control circuit, electric oil pump vehicle
Hydraulic means, the vehicle hydraulic device also includes shuttle valve.Vane pump is by engine driving to rotate.Vane pump includes pump case
Body, multiple blades and rotor.The pump case has the inner circumferential cam surface in elliptical cross-sectional shape.The multiple blade is set
Put in the pump case.The rotor provides the blade containment groove for accommodating the multiple blade so that the multiple blade is in institute
State radially may move for rotor；The oil pressure control circuit includes the first oil drain passage, the second oil drain passage and back pressure oil
Passage.First oil drain passage is configured to guide to the working fluid discharged from the vane pump except vehicle hydraulic dress
Device outside putting.The multiple blade that the back of the body pressure oil passage is configured into the blade containment groove provides back pressure.
The electric oil pump is configured to that the working fluid is discharged into the back of the body pressure oil passage by second oil drain passage.Institute
State the intersection that shuttle valve is arranged on first oil drain passage, second oil drain passage and the back of the body pressure oil passage.It is described
Shuttle valve is configured to：(I) is high when the oil pressure from the working fluid in first oil drain passage that the vane pump is discharged
When from the oil pressure of the working fluid in second oil drain passage that the electric oil pump is discharged, it is allowed to the workflow
Body flows to the back of the body pressure oil passage from first oil drain passage, and (i i) is when described first discharged from the vane pump
The oil pressure of the working fluid in oil drain passage is equal to or less than second oil extraction discharged from the electric oil pump
During the oil pressure of the working fluid in passage, it is allowed to which the working fluid flows to the back pressure oil from the electric oil pump
Passage.
According to above-mentioned oil pressure control circuit, by being applied to the back pressure of multiple blades by electric oil pump, even in blade
The vane pump also operates smooth when pumping up dynamic.In addition, during the operation of vane pump, even if when the oil in the first oil drain passage
When higher pressure is arrived in pressure fluctuation, the oil pressure that can be also supplied by shuttle valve in the first oil drain passage is as the back pressure of blade, and leaf
Piece is pushed into receiving cavity.Therefore, it is possible to suppress from vane pump discharge working fluid pressure decline and realization
Stable operation.
In the vehicle hydraulic device, the electric oil pump can be configured as only in the starting of the engine simultaneously
And activated when the temperature of the working fluid is equal to or less than predetermined temperature.
According to oil pressure control circuit as described above, the electric oil pump is only when engine is started and works as working fluid
Temperature be equal to or less than predetermined temperature when operate.The electric oil pump is only used when necessary, can reduce making for electric power
With.
In addition, in the vehicle hydraulic device, the oil pressure for the working fluid discharged from the electric oil pump
It can decline with the rising of the temperature of the working fluid.
According to oil pressure control circuit as described above, the oil pressure for the working fluid discharged from the electric oil pump
As the temperature of the working fluid rises and decline.Therefore, it is possible to the use of further reduction electric power.
In addition, in vehicle hydraulic device, the engine is reset used after in the engine stop
When time is within the scheduled time, the electric oil pump can be with inoperative.
According to above-mentioned oil pressure control circuit, when the engine resets used after the engine stop
Between for short time within the scheduled time when, due to back pressure in this case and not always reduce it is so many, and it is subsequent not
Need to activate electric oil pump, so the consumption of electric power can be reduced by preventing the actuating of electric oil pump.
Brief description of the drawings
Feature, advantage and the technology and industrial significance to one exemplary embodiment of the invention are carried out below with reference to accompanying drawings
Description, wherein identical label represents identical element, and wherein：
Fig. 1 is the schematic diagram of the construction of the major part for the vehicle hydraulic device for showing the first embodiment of the present invention；
Fig. 2 is the front view for removing its lid of the vane pump of the vehicle hydraulic device in Fig. 1；
Fig. 3 is the schematic diagram of the construction of the major part for the vehicle hydraulic device for showing the second embodiment of the present invention；
Fig. 4 is the functional block diagram of the major part of the Motor Control function for the electronic controller for showing Fig. 3；
Fig. 5 is the major part of the operation for the electric oil pump for showing the vehicle hydraulic device in control figure 3, i.e. shown
For the flow chart for the control operation for reducing the electric power used by vehicle hydraulic device；And
Fig. 6 is for the electronic oil needed for the temperature acquisition of the working fluid of the vehicle hydraulic device according to second embodiment
One example of the graph of a relation of the rotating speed of pump.
Specific embodiment
Hereinafter, the first embodiment with reference to the accompanying drawings in detail to the vehicle hydraulic device of the present invention is described.
Fig. 1 is the schematic diagram for the construction for showing vehicle oil gear 10.Vehicle oil gear 10 includes vane pump 14, electronic
Oil pump 48 and shuttle valve 50.Vane pump 14 supplies working fluid to the hydraulic pressure control device 12 as oil pressure control circuit.For example,
Hydraulic pressure control device 12 consumes the workflow of such as hydraulic cylinder of the pulley of automatic transmission (A/T) or buncher (CVT)
Body.Electric oil pump 48 supplies back pressure to vane pump 14.
Vane pump 14 by engine 15 rotation driving.Vane pump 14 has the first suction inlet 22, the second suction inlet 24, the
One outlet 26 and the second outlet 28.First suction inlet 22 and the second suction inlet 24 are stored in the work in food tray 18
Fluid is inhaled into the mouth passed through via oil filter 20.The outlet 28 of first discharge port 26 and second is sucked working fluid
It is discharged to the mouth that outside passed through of pump.Vane pump 14 also has multiple leaves that back pressure is fed to suction and discharge working fluid
The the first back pressure groove 42 and the second back pressure groove 44 of piece 82.Working fluid is by the pump chamber P that is set by blade 82 from suction inlet 22,24
It is transported to outlet 26,28.
Vane pump oil drain passage 30 equivalent to the first oil drain passage is connected to the outlet 28 of first discharge port 26 and second,
And vane pump oil drain passage 30 is used as being pumped into oil from the working fluid that the outlet 28 of first discharge port 26 and second is discharged
Working fluid service duct that pressure control device 12 is passed through, leading to hydraulic pressure control device 12.Vane pump oil drain passage 30 is also
The first input port 50a of shuttle valve 50 is connected to, and as the workflow discharged from the outlet 28 of first discharge port 26 and second
Body be pumped into the first back pressure groove 42 and the second back pressure groove 44 is passed through, the working fluid service duct that leads to vane pump 14.
Electric oil pump oil drain passage 31 equivalent to the second oil drain passage is connected to the of another input port of shuttle valve 50, i.e. shuttle valve 50
Two input port 50b, and the delivery outlet 50c of shuttle valve 50 is connected to back of the body pressure oil passage 36.
The first suction inlet 22 and the second suction inlet 24 of vane pump 14 are connected to oil by suction passage 34 via oil filter 20
Disk 18 so that the working fluid being stored in food tray 18 is inhaled into the first suction inlet 22 and the second suction inlet 24.Suction passage
Electric oil pump 48 is also connected to food tray 18 by 34 via oil filter 20 so that the working fluid being stored in food tray 18 is inhaled into
Electric oil pump 48.Drainback passage 32 makes the working fluid of hydraulic pressure control device 12 return to the suction passage 34 of vane pump 14.
Fig. 2 is the front view for removing its lid of the vane pump 14 of vehicle hydraulic device 10.Vane pump 14 is by main body 68, cam
Ring 70, side plate 66, rotor 74, pump shaft 76 and pump cover (not shown) composition.Main body 68 has the cavity 16 of substantial cylindrical.It is convex
The shape of the general cylindrical shape of torus 70, and be assembled in cavity 16, to be rotated relative to main body 68.Cam ring 70
Equivalent to pump case, and therefore it is also referred to as pump case.Side plate 66 has disc-shape, and is installed into so as to side plate
66 flat surfaces and another flat surfaces respectively with the bottom wall surface of cavity 16 and the circular of cam ring 70 one
Mode that individual end face is in contact and between the bottom wall surface and cam ring 70 of the cavity 16 of main body 68.Rotor 74 has cylinder
Shape, and be received so that outer peripheral face is convex to have closely-spaced mode to face between the inner circumferential cam surface 78 of cam ring 70
The inner circumferential cam surface 78 of torus 70, and can be slided along an end face on rotation direction of principal axis with another flat surfaces of side plate 66
Dynamic contact.Pump shaft 76 is fixed to rotor 74 with the rotating shaft coaxle of rotor 74, is rotatably supported in main body 68, and
And according to the driving of such as driving source of engine 15, direction (i.e., along clockwise direction) rotation along along Fig. 2 indicated by arrow turns
Son 74.Pump cover is secured to main body 68, to be in contact in the other end with the cam ring 70 of circular and can be
The opening of cavity 16 is covered while on axial direction with the other end sliding contact of rotor 74.
Cam ring 70 has the inner circumferential cam surface 78 as the inner peripheral surface with generally oblong cross-sectional profile.Rotor 74 is wrapped
The slit 80 equivalent to multiple blade containment grooves and the blade 82 for the multiple rectangular plate-likes being assembled in slit 80 are included, it is described many
Individual blade containment groove on the whole axial length of outer peripheral face from the central portion of radial direction radially toward outer peripheral face with circumference side
Uniform interval is formed upwards, and the blade 82 of multiple rectangular plate-likes is mounted to slit 80.Because slit 80 accommodates blade,
So slit 80 is also referred to as blade containment groove.Blade 82 is inserted into gap 80 so that the circumference along rotor 74 of blade 82
The side in direction can be slided along the radial direction of rotor 74 in gap 80 towards on the inwall of blade 82；So that blade 82 is vertically
The side in direction other end respectively with side plate 66 and the inner wall surface sliding contact of pump cover；And cause the radial direction of blade 82
Outer face can be slided on the inner circumferential cam surface 78 of cam ring 70.
When rotor 74 is driven in rotation, blade 82 is in the back pressure from the first back pressure groove 42 and the second back pressure groove pressure 44
From the inwall of slit 80 by the radial outside release towards rotor 74 under effect so that the radial outer end face of blade 82 be forced into it is convex
On the inner circumferential cam surface 78 of torus 70, and in this condition, slided along the direction of rotation of rotor 74 on inner circumferential cam surface 78.
Therefore, multiple pump chamber P are by the side surface of adjacent blades 82 relative to each other in a circumferential direction, inner circumferential cam surface 78, rotor 74
Outer peripheral face, the inner wall surface of the other end of side plate 66 and pump cover limits.Because inner circumferential cam surface 78 is with generally oblong
The shape of shape, as rotor 74 rotates a circle, the diametrically reciprocating twice along rotor 74 in slit 80 of blade 82, so that
Pump chamber P volume increase and reduction is twice.
In side plate 66 and main body 68, increase with the rotation according to rotor 74 a pair first that the pump chamber P of volume is connected
The suction inlet 24 of suction inlet 22 and second crosses pump shaft 76 and formed, so as to across both side plate 66 and main body 68.In the He of side plate 66
In main body 68, with the rotation according to rotor 74 and reduce a pair of first discharge ports 26 and second that the pump chamber P of volume connects and discharge
Mouth 28 crosses pump shaft 76 and formed, so as to across both side plate 66 and main body 68.First discharge port 26 is relative to the first suction inlet
22 are located at the front side along the direction of rotation of rotor 74.Second outlet 28 is located at the rotation along rotor 74 relative to the second suction inlet 24
Turn the front side in direction.Substitution forms these mouths with across side plate 66 and main body 68, only formed in side plate 66 port 22,24,26,
28 be also feasible.
Between the first suction inlet 22 and first discharge port 26, side plate 66 is connected with the inner peripheral end thereof of slit 80, limits
Pump chamber P blade 82 is mounted in slit 80.Supply first of the back pressure for blade 82 to be pressed into inner circumferential cam surface 78
Circumferencial direction formation semicircular ring shape of the back pressure groove 44 of back pressure groove 42 and second along rotor 74.First back pressure groove 42 and the second back pressure
Groove 44 is connected with back of the body pressure oil passage 36.
When vane pump 14 is started and rotor 74 is along being rotated clockwise in Fig. 2 according to the driving of engine 15
When, the working fluid in food tray 18 is inhaled into the first suction inlet 22 and the second suction inlet 24 by suction passage 34, and is transported
Each pump chamber P of vane pump 14 is sent to, wherein each pump chamber P volume is as rotor 74 rotates and gradually increases.As rotor 74 revolves
Turn and therefore pump chamber P volume reduces, the working fluid being inhaled into pump chamber P passes through the outlet of first discharge port 26 and second
28 are discharged to vane pump oil drain passage 30.When be exclusively used in the motor 52 of electric oil pump 48 with the starting of engine 15 by
Drive and electric oil pump 48 is when correspondingly starting, the working fluid in food tray 18 is inhaled into electronic oil by suction passage 34
In pump 48, and it is discharged to the electric oil pump oil drain passage 31 connected with the second input port 50b of shuttle valve 50.
Vane pump oil drain passage 30 and electric oil pump oil drain passage 31 respectively with the first input port 50a of shuttle valve 50 and second
Input port 50b is connected.Back of the body pressure oil passage 36 is connected with the delivery outlet 50c of shuttle valve 50.As the vane pump row discharged from vane pump 14
The oil pressure of working fluid in oily passage 30 is higher than the workflow in the electric oil pump oil drain passage 31 discharged from electric oil pump 48
During the oil pressure of body, shuttle valve 50 allows working fluid to flow to back of the body pressure oil passage 36 from vane pump oil drain passage 30.When from vane pump 14
The oil pressure of working fluid in the vane pump oil drain passage 30 of discharge is equal to or less than the electric oil pump discharged from electric oil pump 48
During the oil pressure of the working fluid in oil drain passage 31, shuttle valve 50 allows working fluid to flow to back pressure from electric oil pump oil drain passage 31
Oily passage 36.Therefore, the inner circumferential cam that cam ring 70 is pressed into for the blade 82 of the pump chamber P by vane pump 14 is limited is maintained
The back pressure on surface 78.
Therefore, the vehicle hydraulic device 10 of the present embodiment is provided with electric oil pump 48 and shuttle valve 50, so that vehicle hydraulic
Device is applied to blade 82 from electric oil pump 48 also with back pressure when starting and swimmingly operated.In addition, in blade
During the operation of pump 14, even if when the oil pressure for the working fluid discharged from vane pump exceedes the back pressure in slit 80, workflow
Body also can be from the flow direction back of the body pressure oil passage 36 of vane pump oil drain passage 30, so that blade 82 is pushed into slit 80, and from leaf
The pressure for the working fluid that piece pump 14 is discharged is not reduced.Therefore, the vane pump oil drain passage during the operation of vane pump 14
When pressure fluctuation in 30 is to higher pressure, it can also suppress the reduction of the discharge rate of vane pump 14.
[embodiment 2]
Then, the second embodiment of the present invention will be described.In second embodiment following below, identical accompanying drawing will be used
Mark to represent that those have the part of the function essentially identical with first embodiment, and detailed description will be omitted.
The difference of the vehicle hydraulic device 100 of second embodiment and the vehicle hydraulic device 10 of first embodiment is, only in hair
Electric oil pump 48 is operated when motivation 15 is started and when the temperature of working fluid is equal to or less than predetermined temperature, and is
Rise the oil pressure for the working fluid that reduction is discharged from electric oil pump 48 with the temperature of working fluid.Fig. 3 will be used below to Fig. 6
Only these differences are described in detail.
Fig. 3 is the schematic diagram of the construction for the vehicle hydraulic device for showing the second embodiment of the present invention.Vehicle hydraulic device
The construction of vehicle hydraulic device 10 shown in 1 in 100 construction and figure is identical, i.e. disappeared except working fluid is fed to
Consume the vane pump 14 of the hydraulic pressure control device 12 (for example, pulley of hydraulic cylinder, such as A/T or CVT) of working fluid, supply back pressure
Electric oil pump 48, shuttle valve 50, food tray 18, oil filter 20 and the oil flowed through for working fluid of the slit 80 of vane pump 14 should be arrived
Outside passage, include the motor 52 of driving electric oil pump 48.However, vehicle hydraulic device 100 and vehicle hydraulic device 10 are not
It is to be provided with the temperature sensor 54 of the temperature of detection working fluid with part, and based on being detected by temperature sensor 54
Temperature control motor 52 electronic controller 56.Motor 52 is driven by the control signal from electronic controller 56
It is dynamic, and activate electric oil pump 48 working fluid is fed into electric oil pump oil drain passage 31.Electronic controller 56 is configured
There is so-called microcomputer, the microcomputer includes such as CPU, RAM, ROM and input-output interface, and CPU passes through
The output control of engine 15 is performed according to the program process signal being previously stored in ROM using RAM interim storage function
System, speed Control of automatic transmission (not shown) etc..
In the vehicle hydraulic device 100 of the embodiment, for example, in order to reduce the electricity for activating the electric oil pump 48
Power, is only started and the drive motor 52 when the temperature of working fluid is equal to or less than predetermined temperature in engine 15, so as to
Limit the actuating of electric oil pump 48.In addition, for example, in order to reduce the electric power for activating the electric oil pump 48, with work
The temperature of fluid rises, and reduces the oil pressure for the working fluid discharged from electric oil pump 48.
Fig. 4 is the functional block diagram of the major part for the Motor Control function of showing electronic controller 56, and it includes
Engine starts identifying unit 62, temperature working fluid identifying unit 60 and motor control unit 58.Engine, which is started, to be sentenced
Order member 62 judges whether engine 15 starts.Temperature working fluid identifying unit 60 judge temperature working fluid TOIL whether etc.
In or less than default working fluid normal temperature Te.Motor control unit 58 is based on engine and starts identifying unit 62 and work
The judgement for making fluid temperature (F.T.) identifying unit 60 activates motor 52 by the way that Motor control signal SM is sent into motor 52.
Engine start identifying unit 62 can be determined that from when last time engine 15 is by driving and stopping until this quilt of engine 15
Time untill driving, i.e. whether reset the time used is in the given time, and if to reset used
Time is that within the scheduled time, then motor control unit 58 can be controlled so as to inoperative motor 52.
Fig. 5 is the major part of the operation of the control electric oil pump 48 performed by Fig. 3 electronic controller 56, i.e. be used for
Reduce the flow chart of the control operation of electric power used in vehicle hydraulic device 100.This operation is repeatedly performed.
In Figure 5, (hereinafter will omit " step " two word) S1 the step of identifying unit 62 are started corresponding to engine
In, judge whether engine 15 starts.If the result of determination in S1 is negative, current routine terminates.If it is determined that
Result is affirmative, in the S2 corresponding to temperature working fluid identifying unit 60, based on the signal from temperature sensor 54
To judge whether temperature working fluid TOIL is equal to or less than default working fluid normal temperature Te.If the judgement in S2
Result is negative, then current routine terminates.If the decision is that certainly, corresponding to motor control unit 58
In S3, based on activating motor 52, and electric oil pump 48 from the Motor control signal SM of motor control unit 58
Driven.In such control, the actuating of electric oil pump is limited, and is reduced used in vehicle hydraulic device 100
Electric power.
Fig. 6 is to be used for obtaining temperature working fluid TOIL (DEG C) and in specific working fluid by motor control unit 58
At a temperature of required electric oil pump 48 rotating speed (rpm) and the example of relation (figure) that prestores.Specifically, with
The temperature for working fluid rises, and the oil pressure for the working fluid discharged from electric oil pump 48 reduces, that is to say, that electric oil pump 48
Rotating speed reduction, and therefore electric power used in reduction vehicle hydraulic device 100.
Although the present invention is described in detail referring to the drawings, the present invention also can be real with other embodiment
Apply, and various modifications can be carried out within the scope of the invention.
For example, in the vane pump 14 of first embodiment and second embodiment, the cam ring 70 with inner circumferential cam surface 78
It is assembled in the cavity 16 of main body 68.However, the present invention is not limited in this, also, for example, by directly in main body 68
The inner circumferential cam surface 78 of the outer peripheral face in face of rotor 74 is formed on the inner peripheral surface of cavity 16, it is convenient to omit cam ring.
In the vane pump of first embodiment and second embodiment, multiple outlets 26,28 connect with hydraulic pressure control device 12
Lead to and working fluid is provided to hydraulic pressure control device 12.However, working fluid can be from multiple outlets 26,28 supplied to not
Same hydraulic pressure control device.In this case, multiple shuttle valves 50 can be respectively used to multiple outlets 26,28, or only one of which
Shuttle valve 50 can be used for control to be supplied to the oil pressure of the working fluid in the back of the body pressure oil passage 36 of blade 82.
Claims (4)
1. a kind of vehicle hydraulic device, the vehicle hydraulic device includes vane pump, oil pressure control circuit and electric oil pump,
The vane pump is by engine driving to rotate, and the vane pump includes pump case, multiple blades and rotor,
The pump case has the inner circumferential cam surface in elliptical cross-sectional shape,
The multiple blade is arranged in the pump case, and
The rotor provides the blade containment groove for accommodating the multiple blade so that the multiple blade is in the radial direction of the rotor
It is upper removable；
The oil pressure control circuit includes the first oil drain passage, the second oil drain passage and back of the body pressure oil passage,
First oil drain passage is configured to guide to the working fluid discharged from the vane pump except vehicle hydraulic dress
Device outside putting,
The multiple blade that the back of the body pressure oil passage is configured into the blade containment groove provides back pressure；
The electric oil pump is configured to the working fluid is discharged into back pressure oil by second oil drain passage logical
Road, the vehicle hydraulic device is characterised by also including：
Shuttle valve, the shuttle valve is arranged on first oil drain passage, second oil drain passage and the back of the body pressure oil passage
Intersection,
The shuttle valve is configured to：(I) is when from the working fluid in first oil drain passage that the vane pump is discharged
Oil pressure be higher than from the electric oil pump discharge second oil drain passage in the working fluid oil pressure when, it is allowed to institute
State working fluid and flow to the back of the body pressure oil passage from first oil drain passage, and (ii) is when the institute discharged from the vane pump
The oil pressure for stating the working fluid in the first oil drain passage is equal to or less than described the discharged from the electric oil pump
During the oil pressure of the working fluid in two oil drain passages, it is allowed to which the working fluid is described from electric oil pump flow direction
Carry on the back pressure oil passage.
2. vehicle hydraulic device according to claim 1, it is characterised in that
The electric oil pump be configured as only in the starting of the engine and when the temperature of the working fluid is equal to or
Activated during less than predetermined temperature.
3. vehicle hydraulic device according to claim 1 or 2, it is characterised in that
Under the oil pressure for the working fluid discharged from the electric oil pump is with the temperature rising of the working fluid
Drop.
4. the vehicle hydraulic device according to any one of claims 1 to 3, it is characterised in that
When the engine resets the time used within the scheduled time after the engine stop, the electricity
Dynamic oil pump is inoperative.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015181242A JP2017057738A (en) | 2015-09-14 | 2015-09-14 | Vehicular hydraulic device |
| JP2015-181242 | 2015-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107035684A true CN107035684A (en) | 2017-08-11 |
Family
ID=58257321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610811905.6A Pending CN107035684A (en) | 2015-09-14 | 2016-09-09 | Vehicle hydraulic device |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20170074262A1 (en) |
| JP (1) | JP2017057738A (en) |
| CN (1) | CN107035684A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3516768A (en) * | 1968-11-01 | 1970-06-23 | Sperry Rand Corp | Power transmission |
| JPS62210274A (en) * | 1986-03-12 | 1987-09-16 | Toyoda Mach Works Ltd | Vane pump |
| JP2001003875A (en) * | 1999-06-21 | 2001-01-09 | Toyoda Mach Works Ltd | Vane pump |
| JP2003307186A (en) * | 2002-04-12 | 2003-10-31 | Toyoda Mach Works Ltd | Pump device |
| JP2005220867A (en) * | 2004-02-09 | 2005-08-18 | Honda Motor Co Ltd | Vane pump and vane pump type power transmission using it |
| CN102135174A (en) * | 2010-01-21 | 2011-07-27 | 株式会社昭和 | Vehicle hydraulic control unit |
| US20140301877A1 (en) * | 2011-11-04 | 2014-10-09 | Christian Böhm | Pump device for delivering a medium |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19631974C2 (en) * | 1996-08-08 | 2002-08-22 | Bosch Gmbh Robert | Vane machine |
| US7955062B2 (en) * | 2005-05-12 | 2011-06-07 | Norman Ian Mathers | Vane pump |
| JP2008286108A (en) * | 2007-05-17 | 2008-11-27 | Jtekt Corp | Vehicular oil pump system |
| JP5306974B2 (en) * | 2009-12-02 | 2013-10-02 | 日立オートモティブシステムズ株式会社 | Electric oil pump |
| CN103370503B (en) * | 2011-02-15 | 2016-01-06 | 丰田自动车株式会社 | The vehicle control gear of oily feeding mechanism |
-
2015
- 2015-09-14 JP JP2015181242A patent/JP2017057738A/en active Pending
-
2016
- 2016-09-08 US US15/259,979 patent/US20170074262A1/en not_active Abandoned
- 2016-09-09 CN CN201610811905.6A patent/CN107035684A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3516768A (en) * | 1968-11-01 | 1970-06-23 | Sperry Rand Corp | Power transmission |
| JPS62210274A (en) * | 1986-03-12 | 1987-09-16 | Toyoda Mach Works Ltd | Vane pump |
| JP2001003875A (en) * | 1999-06-21 | 2001-01-09 | Toyoda Mach Works Ltd | Vane pump |
| JP2003307186A (en) * | 2002-04-12 | 2003-10-31 | Toyoda Mach Works Ltd | Pump device |
| JP2005220867A (en) * | 2004-02-09 | 2005-08-18 | Honda Motor Co Ltd | Vane pump and vane pump type power transmission using it |
| CN102135174A (en) * | 2010-01-21 | 2011-07-27 | 株式会社昭和 | Vehicle hydraulic control unit |
| US20140301877A1 (en) * | 2011-11-04 | 2014-10-09 | Christian Böhm | Pump device for delivering a medium |
Also Published As
| Publication number | Publication date |
|---|---|
| US20170074262A1 (en) | 2017-03-16 |
| JP2017057738A (en) | 2017-03-23 |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170811 |
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