WO2022130671A1 - 統合ポンプ装置 - Google Patents
統合ポンプ装置 Download PDFInfo
- Publication number
- WO2022130671A1 WO2022130671A1 PCT/JP2021/027431 JP2021027431W WO2022130671A1 WO 2022130671 A1 WO2022130671 A1 WO 2022130671A1 JP 2021027431 W JP2021027431 W JP 2021027431W WO 2022130671 A1 WO2022130671 A1 WO 2022130671A1
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- WIPO (PCT)
- Prior art keywords
- oil
- hydraulic
- rotation
- suction
- hydraulic chamber
- Prior art date
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- 230000007246 mechanism Effects 0.000 claims description 22
- 230000002265 prevention Effects 0.000 claims description 9
- 239000003921 oil Substances 0.000 description 237
- 238000010586 diagram Methods 0.000 description 17
- 101100187346 Aspergillus sp. (strain MF297-2) notP gene Proteins 0.000 description 8
- 238000002955 isolation Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 2
- 230000012447 hatching Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000010724 circulating oil Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
- F16H63/3483—Parking lock mechanisms or brakes in the transmission with hydraulic actuating means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/005—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles by locking of wheel or transmission rotation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
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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
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/001—Pumps for particular liquids
- F04C13/002—Pumps for particular liquids for homogeneous viscous liquids
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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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/12—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/18—Combined units comprising both motor and pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
- F16D63/006—Positive locking brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/28—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged apart from the brake
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/48—Signals to a parking brake or parking lock; Control of parking locks or brakes being part of the transmission
- F16H63/483—Circuits for controlling engagement of parking locks or brakes
-
- 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
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
- F15B21/0423—Cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20507—Type of prime mover
- F15B2211/20515—Electric motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/61—Secondary circuits
- F15B2211/611—Diverting circuits, e.g. for cooling or filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/62—Cooling or heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H2061/0037—Generation or control of line pressure characterised by controlled fluid supply to lubrication circuits of the gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/0021—Generation or control of line pressure
- F16H61/0025—Supply of control fluid; Pumps therefore
- F16H61/0031—Supply of control fluid; Pumps therefore using auxiliary pumps, e.g. pump driven by a different power source than the engine
Definitions
- This disclosure relates to an integrated pump device.
- a hydraulic system that integrates a motor, an electric oil pump, and a hydraulic actuator is known.
- a motor, an electric oil pump, a hydraulic parking lock actuator, and a clutch engagement control oil passage are integrated.
- the hydraulic parking lock actuator and the clutch operate.
- oil for cooling the motor generator is supplied from the oil pump.
- An object of the present disclosure is to provide an integrated pump device in which a hydraulic actuator integrally configured with a motor and an electric oil pump is miniaturized.
- the integrated pump device of the present disclosure is a module in which a motor, an oil pump, and a hydraulic actuator are integrally configured.
- the "integrally configured module” is not necessarily limited to one delivered to an automobile manufacturer as a single component. It is interpreted that the "integrated module” includes the ones that are delivered for each part and are integrated after being attached to the automobile.
- the oil pump rotates by the driving force of the motor and discharges the oil sucked from the oil pan.
- the hydraulic actuator operates to switch between a forward state and a return state by the hydraulic pressure supplied from the oil pump.
- a hydraulic actuator is a parking lock actuator that activates a parking lock mechanism of an automobile.
- the hydraulic actuator includes a housing having one or more vane chambers and a vane rotor housed in the housing and provided with one or more vanes corresponding to the vane chambers.
- the vane can rotate in the circumferential direction in the corresponding vane chamber.
- the advancing side hydraulic chamber is formed in one of the vane circumferential directions in the vane chamber, and the returning hydraulic chamber is formed in the other of the vane circumferential direction.
- the vane rotor rotates in one direction to advance, and when oil is supplied to the returning hydraulic chamber, the vane rotor rotates in the other direction to return.
- the operating force of the hydraulic actuator is determined by the product of the pressure receiving area and the hydraulic pressure.
- the pressure receiving area can be secured by one or more vanes and the hydraulic actuator can be miniaturized. .. Therefore, it is particularly effectively applied as a hydraulic actuator such as a parking lock actuator in which the mounting space is restricted.
- FIG. 1 is a basic configuration diagram of an integrated pump device according to the present embodiment.
- FIG. 2 is a configuration diagram of an integrated pump device and a parking lock mechanism according to the first to sixth embodiments.
- FIG. 3 is a diagram showing the appearance of the rotary hydraulic actuator according to the first, third, and fifth embodiments and the flow of oil.
- FIG. 4 is a sectional view taken along line IV-IV of FIG. 3 when the lock is released (returned state) and locked (advanced state) according to the first, third, and fifth embodiments.
- FIG. 5 is a hydraulic pressure path diagram at the time of unlocking (returning state) according to the first embodiment.
- FIG. 6 is a hydraulic pressure path diagram at the time of locking (advanced state) according to the first embodiment.
- FIG. 7 is a diagram showing the appearance of the rotary hydraulic actuator according to the second, fourth, and sixth embodiments and the flow of oil.
- FIG. 8 is a sectional view taken along line VIII-VIII of FIG. 7 when the second, fourth, and sixth embodiments are unlocked (returned state) and locked (advanced state).
- FIG. 9 is a hydraulic pressure path diagram at the time of unlocking (returning state) according to the second embodiment.
- FIG. 10 is a hydraulic pressure path diagram at the time of locking (advanced state) according to the second embodiment.
- FIG. 11 is a hydraulic pressure path diagram at the time of unlocking (returning state) according to the third embodiment.
- FIG. 12 is a hydraulic pressure path diagram at the time of locking (advanced state) according to the third embodiment.
- FIG. 13 is a hydraulic pressure path diagram at the time of unlocking (returning state) according to the fourth embodiment.
- FIG. 14 is a hydraulic pressure path diagram at the time of locking (advanced state) according to the fourth embodiment.
- FIG. 15 is a hydraulic pressure path diagram at the time of unlocking (returning state) according to the fifth embodiment.
- FIG. 11 is a hydraulic pressure path diagram at the time of locking (advanced state) according to the second embodiment.
- FIG. 11 is a hydraulic pressure path diagram at the time of unlocking (returning state) according to the third embodiment.
- FIG. 12 is a hydraulic pressure path diagram
- FIG. 16 is a hydraulic pressure path diagram at the time of locking (advanced state) according to the fifth embodiment.
- FIG. 17 is a hydraulic pressure path diagram at the time of unlocking (returning state) according to the sixth embodiment.
- FIG. 18 is a hydraulic pressure path diagram at the time of locking (advanced state) according to the sixth embodiment.
- FIG. 19 is a configuration diagram of an integrated pump device and a parking lock mechanism using a cylinder type hydraulic actuator according to a reference embodiment.
- the integrated pump device of the present embodiment forms a module in which a motor, an electric oil pump, and a hydraulic actuator are integrally configured.
- FIG. 1 shows a basic configuration common to the integrated pump device 90 of the present embodiment.
- the integrated pump device 90 is integrally composed of a motor 10, an oil pump 30, and a hydraulic actuator 60.
- the motor is referred to as "M” and the electric oil pump is referred to as "EOP”.
- the oil pump 30 is an electric oil pump that rotates by the driving force of the motor 10 and discharges the oil sucked from the oil pan.
- the hydraulic actuator 60 operates so as to switch between the advancing state and the returning state by the hydraulic pressure supplied from the oil pump 30.
- the "advanced state” and the “returned state” are merely terms for distinguishing the opposing bipolar states for convenience, and any of the states may be defined as the advanced state or the returned state.
- the hydraulic actuator 60 of the present embodiment is a parking lock actuator that operates the parking lock mechanism 80 of the automobile.
- the hydraulic actuator 60 locks the parking lock mechanism 80 in the advancing state, and applies an operating force to unlock the parking lock mechanism in the returning state.
- the shift range is operated to the P range, it corresponds to the time of locking, and when it is operated to the notP range, it corresponds to the time of unlocking.
- the notP range is one range in the two-position configuration. Further, in a configuration including a multi-speed range and the like, a plurality of ranges other than the P range may be comprehensively interpreted as a notP range.
- FIG. 2 shows the integrated pump device 901 and the parking lock mechanism 80 of the first embodiment.
- the integrated pump device 901 uses a rotary hydraulic actuator 60 having a columnar outer shape, and the motor 10, the oil pump 30, and the hydraulic actuator 60 are integrally configured.
- the three are coaxially and in series and integrally configured, but they may be arranged in series and integrally in a state where the axes are deviated, or they may be arranged in parallel and integrally configured. good.
- the parking lock mechanism 80 includes a detent shaft 81, a detent plate 82, a detent spring 83, a switching rod 84, a parking rod 85, a cone 86, a parking lock pole 87, a parking gear 88, and the like.
- the detent shaft 81 is an output shaft of the hydraulic actuator 60, and is rotated in both directions within a predetermined angle range by the operation of the hydraulic actuator 60.
- the detent plate 82 is fixed to the detent shaft 81 and rotates together with the detent shaft 81.
- a plurality of recesses 823 are formed on the detent spring 83 side of the detent plate 82.
- the detent spring 83 is elastically deformed, and the detent roller 833 provided at the tip is fitted into one of the recesses 823, thereby restricting the rotation of the detent plate 82.
- the pin 824 protruding from the plate surface of the detent plate 82 engages with the groove formed at the tip of the switching rod 84.
- the pin 824 and the switching rod 84 are used in the reference embodiment shown in FIG. 19, and may not be the first embodiment.
- the parking rod 85 is formed in a substantially L shape, and one end 851 side is fixed to the detent plate 82. On the other end 852 side of the parking rod 85, a conical body 86 whose diameter decreases as it approaches the other end 852 is provided.
- the detent plate 82 rotates in the direction in which the detent roller 833 fits into the recess corresponding to the P range, the conical body 86 moves in the direction of the arrow P.
- the parking lock pole 87 abuts on the conical surface of the conical body 86 and can swing around the shaft portion 877.
- the parking lock pole 87 is provided with a convex portion 878 that can mesh with the parking gear 88.
- the conical body 86 moves in the direction of the arrow P
- the parking lock pole 87 is pushed up, the convex portion 878 and the parking gear 88 mesh with each other, and the lock state is set.
- the convex portion 878 is separated from the parking gear 88, and the locked state is released.
- FIGS. 3 and 4 show the operation completion state at the time of unlocking when the shift range is operated from the P range to the notP range
- the lower part of FIG. 4 shows the lock when the shift range is operated from the notP range to the P range. Indicates the operation completion state at the time.
- the hydraulic actuator 60 includes a cylindrical housing 61 centered on the rotation axis O, and a vane rotor 63 coaxially housed in the housing 61.
- the housing 61 has, for example, four vane chambers 621-624 in the circumferential direction.
- the vane chamber 621-624 has a fan shape in which the inner wall on the outer side in the radial direction is formed in an arc shape. In the figure, the leader wire of the code of the vane chamber 621-624 is drawn from the inner wall on the outer side in the radial direction.
- the vane rotor 63 is provided with, for example, four vanes 641-644 corresponding to the vane chambers 621-624 on the outer periphery.
- One of the four vanes 641-644 has stoppers 645 and 646 for restricting the rotation limit at both ends in the circumferential direction, and is formed larger than the other three vanes 642, 643 and 644. There is.
- the other three vanes 642, 643, and 644 are formed relatively small in order to secure the volume of the hydraulic chamber.
- a sealing material is provided on the sliding portion of the radial outer wall of each vane 641-644.
- Each vane 641-644 is rotatable in the circumferential direction in the corresponding vane chamber 621-624.
- the advancing side hydraulic chambers 651-654 are formed in one of the circumferential directions of the vanes 641-644 in the vane chambers 621-624.
- a return-side hydraulic chamber 661-664 is formed on the other side of the vane 641-644 in the circumferential direction.
- the leading hydraulic chambers 651-654 are connected to a common leading port via a distribution oil passage.
- the return hydraulic chamber 661-664 is connected to a common return port via a distribution oil passage.
- the oil pump 30 is connected to the motor generator 39 via direct supply oil passages 35 and 38 branched from the oil passage that supplies hydraulic pressure to the hydraulic actuator 60.
- the motor generator is referred to as "MG”.
- MG 39 corresponds to an "oil consumer” to which oil is supplied from the oil pump 30. Specifically, oil is sprayed in an open space so as to cool the coil that generates heat by energization in the stator of MG39.
- the following first to sixth embodiments are a combination of a configuration of three patterns relating to switching of the operating direction of the hydraulic actuator 60 and a configuration of two patterns relating to the oil supply path to the MG 39.
- the rotation direction of the oil pump 30 is constant, and the oil sucked from the oil pan 31 via the suction oil passage 32 is the suction port 342. Flows from to the discharge port 343 in only one direction.
- a direction switching valve 56 for switching the flow of oil from the oil pump 30 to the advancing side hydraulic chamber 651-654 and the returning side hydraulic chamber 661-664 is provided.
- the port shown in the middle is connected to the discharge port 343 of the oil pump 30 via the actuator oil passage 360.
- Two of the three IN ports shown on both sides are connected to the suction oil passage 32 via the actuator oil passage 365 and 366, respectively.
- a supply switching valve that switches the communication or cutoff of the direct supply oil passages 35 and 38 in the middle of the direct supply oil passages 35 and 38. 50 is provided.
- the oil pump 30 side that is, the upstream side
- the MG39 side that is, the downstream side
- the circulating oil passage 37 shown by the broken line between the supply switching valve 50 and the suction oil passage 32 is basically not assumed to be used in the first, third, and fifth embodiments. That is, the lowest mode among the three switching modes constituting the supply switching valve 50 is not used.
- the discharge oil passage 35 communicates with or is cut off from the reaching oil passage 38.
- the supply switching valve 50 may be integrally configured as a module of the integrated pump device 901.
- the supply switching valve 50 When the lock is released as shown in FIG. 5, the supply switching valve 50 is operated at a position where the supply oil passages 35 and 38 communicate directly with each other.
- the direction switching valve 56 is operated at a position where the actuator oil passage 360 is connected to the return side hydraulic chamber 661-664 and the actuator oil passage 365 is connected to the advance side hydraulic chamber 651-654.
- the oil discharged from the discharge port 343 of the oil pump 30 is directly supplied to the MG 39 via the supply oil passages 35 and 38, and the return side hydraulic chamber 661 of the hydraulic actuator 60 via the actuator oil passage 360. It is supplied to 664. Further, oil is returned from the advancing hydraulic chamber 651-654 of the hydraulic actuator 60 to the suction oil passage 32 via the actuator oil passage 365. In this way, the hydraulic actuator 60 is returned to the returned state, and the parking lock mechanism 80 is unlocked.
- the supply switching valve 50 When locked as shown in FIG. 6, the supply switching valve 50 is operated at a position where the supply oil passages 35 and 38 are directly shut off.
- the direction switching valve 56 is operated at a position where the actuator oil passage 360 is connected to the advancing side hydraulic chamber 651-654 and the actuator oil passage 366 is connected to the return side hydraulic chamber 661-664.
- the oil discharged from the discharge port 343 of the oil pump 30 is supplied to the advancing hydraulic chambers 651-654 of the hydraulic actuator 60 via the actuator oil passage 360. Further, oil is returned from the return side hydraulic chamber 661-664 of the hydraulic actuator 60 to the suction oil passage 32 via the actuator oil passage 366. In this way, the hydraulic actuator 60 is in the advanced state, and the parking lock mechanism 80 is locked.
- the operating force of the hydraulic actuator is determined by the product of the pressure receiving area and the hydraulic pressure.
- the pressure receiving area can be secured by a plurality of vanes 641-644, and the hydraulic actuator 60 can be miniaturized. .. Therefore, it is particularly effectively applied as a hydraulic actuator such as a parking lock actuator in which the mounting space is restricted. This effect is common to the first to sixth embodiments.
- the hydraulic actuator 60 can be reliably switched by using the direction switching valve 56 for switching the operating direction. Further, in the first embodiment, regarding the oil supply path to the MG 39, by using the supply switching valve 50 provided in the direct supply oil passages 35 and 38, the oil is supplied to the MG 39 independently of the operation of the hydraulic actuator 60. The supply of cooling oil can be switched at any time.
- the integrated pump device 902 of the second embodiment has a different route for supplying oil to the MG 39 as an "oil consumer" from the first embodiment.
- FIGS. 7 and 8 A configuration example of the rotary hydraulic actuator 60 of the second embodiment will be described with reference to FIGS. 7 and 8.
- the configurations of FIGS. 7 and 8 are also common to the fourth and sixth embodiments described later. 7 and 8 correspond to FIGS. 3 and 4, respectively, of the first embodiment.
- a communication port 67 is formed at an intermediate portion between the advancing side hydraulic chamber 651 and the returning hydraulic chamber 661 in the rotation direction.
- the communication port 67 is not limited to one vane chamber 621, and may be formed in a plurality of vane chambers.
- the communication port 67 is connected to the MG 39 via the indirect supply oil passage 68.
- a consumption side backflow prevention valve 69 for preventing backflow of oil from the MG 39 to the hydraulic actuator 60 is provided.
- the number of the consumption-side check valve 69 is not limited to one, and a plurality of consumption-side check valves 69 may be provided.
- the "unlocked" state shown on the upper side of FIG. 8 is the initial rotation state of the vane rotor 63 at the time of locking.
- the “locked” state shown on the lower side of FIG. 8 is the initial rotation state of the vane rotor 63 at the time of unlocking.
- the two-dot chain arrow in FIG. 7 schematically represents the flow of oil during the transition from the locked state to the unlocked state.
- the alternate long and short dash arrow schematically represents the flow of oil during the transition from the unlocked state to the locked state.
- the vane 641 closes the communication port 67 in the return side hydraulic chamber 661, which is the “hydraulic pressure chamber on the side where hydraulic pressure is supplied from the oil pump 30”. There is. After the rotation of the vane rotor 63 starts, the communication port 67 is opened in the return hydraulic pressure chamber 661 at a certain rotation position. Then, at least a part of the oil supplied from the oil pump 30 to the return hydraulic pressure chamber 661 flows out from the communication port 67 and is supplied to the MG 39 via the indirect supply oil passage 68.
- the vane 641 closes the communication port 67 in the advancing side hydraulic chamber 651, which is the “hydraulic pressure chamber on the side where hydraulic pressure is supplied from the oil pump 30”. ..
- the communication port 67 is opened in the advancing hydraulic chamber 651 at a certain rotation position. Then, at least a part of the oil supplied from the oil pump 30 to the oil pressure chamber 651 on the advancing side flows out from the communication port 67 and is supplied to the MG 39 via the indirect supply oil passage 68.
- the oil passage from the oil pump 30 to the MG 39 and the oil passage from the oil pump 30 to the hydraulic actuator 60 are configured in parallel.
- the oil passages are configured in a series so as to be connected from the oil pump 30 to the MG 39 via the hydraulic actuator 60. By combining them into one route, the configuration of the oil channel can be simplified. Further, the supply switching valve 50 can be reduced by switching the supply of oil to the MG 39 by utilizing the rotation of the vane rotor 63. Therefore, the system including the integrated pump device can be further miniaturized.
- the integrated pump device 903 of the third embodiment has a different configuration of a hydraulic circuit for switching the operating direction of the hydraulic actuator 60 from the first embodiment.
- the oil pump 30 can rotate forward and reverse together with the motor 10, and the suction port and the discharge port alternate between the normal rotation and the reverse rotation. That is, the normal rotation suction port 342 is a reverse rotation discharge port, and the reverse rotation suction port 343 is a normal rotation discharge port.
- the rotation direction of the first embodiment that is, the rotation direction of the oil pump 30 in which oil is supplied to the MG 39 directly from the discharge port 343 during normal rotation via the supply oil passages 35 and 38.
- the rotation is normal.
- the supply switching valve 50 switches the communication or shutoff of the direct supply oil passages 35 and 38 as in the first embodiment.
- the suction port 342 at the time of normal rotation is connected to the advancing hydraulic chamber 651-654 of the hydraulic actuator 60 via the actuator oil passage 367.
- the suction side backflow prevention valve 57 for preventing backflow from the oil pump 30 side to the oil pan 31 side is provided in the normal rotation suction oil passage 32 connected to the normal rotation suction port 342.
- the reverse suction port 343 is connected to the return side hydraulic chamber 661-664 of the hydraulic actuator 60 via the actuator oil passage 368.
- the reverse rotation suction oil passage 33 connected to the reverse rotation suction port 343 is provided with a suction side backflow prevention valve 58 for preventing backflow from the oil pump 30 side to the oil pan 31 side.
- one end of both the forward rotation suction oil passage 32 and the reverse rotation suction oil passage 33 is connected to the oil pan 30.
- the suction oil passage 32 at the time of normal rotation and the suction oil passage 33 at the time of reverse rotation may branch from the common suction oil passage connected to the oil pan 30.
- the supply switching valve 50 is operated at a position where the supply oil passages 35 and 38 communicate directly with each other.
- the oil pump 30 rotates in the normal direction, oil is sucked from the oil pan 31 to the suction port 342 in the normal rotation via the suction oil passage 32 in the normal rotation.
- the oil discharged from the discharge port 343 at the time of normal rotation is directly supplied to the MG 39 via the supply oil passages 35 and 38, and is also supplied to the MG 39 via the actuator oil passage 368, and the return side hydraulic chamber 661-664 of the hydraulic actuator 60. Is supplied to.
- the suction side check valve 58 prevents oil from flowing back to the oil pan 31 side through the suction oil passage 33 at the time of reverse rotation, as indicated by the “x” mark. Further, oil is returned from the advancing hydraulic chamber 651-654 of the hydraulic actuator 60 to the suction oil passage 32 at the time of normal rotation via the actuator oil passage 367. In this way, the hydraulic actuator 60 is returned to the returned state, and the parking lock mechanism 80 is unlocked.
- the supply switching valve 50 When locked as shown in FIG. 12, the supply switching valve 50 is operated at a position where the supply oil passages 35 and 38 are directly shut off.
- the oil pump 30 reverses, oil is sucked from the oil pan 31 to the reverse suction suction port 343 via the reverse suction suction passage 33.
- the oil discharged from the reverse discharge port 342 is supplied to the advancing hydraulic chambers 651-654 of the hydraulic actuator 60 via the actuator oil passage 367.
- the suction side check valve 57 prevents oil from flowing back to the oil pan 31 side through the suction oil passage 32 at the time of normal rotation, as indicated by the “x” mark. Further, oil is returned from the return side hydraulic chamber 661-664 of the hydraulic actuator 60 to the suction oil passage 33 at the time of reversal via the actuator oil passage 368. In this way, the hydraulic actuator 60 is in the advanced state, and the parking lock mechanism 80 is locked.
- the integrated pump device 904 of the fourth embodiment is a combination of the operation direction switching configuration of the hydraulic actuator 60 according to the third embodiment and the oil supply configuration to the MG 39 according to the second embodiment. That is, the operating direction of the hydraulic actuator 60 is switched by the function of the forward rotation or the reverse rotation of the oil pump 30 and the functions of the suction side backflow prevention valves 57 and 58. Further, oil is supplied to MG 39 from the communication port 67 formed in the hydraulic actuator 60 via the indirect supply oil passage 68.
- the indirect supply oil passage 68 is provided with a consumption side check valve 69.
- the oil discharged from the discharge port 343 in the normal rotation is supplied to the return side hydraulic chamber 661-664 of the hydraulic actuator 60 via the actuator oil passage 368. Will be done.
- the communication port 67 is closed, and the connection between the oil pump 30 and the MG 39 is cut off.
- the communication port 67 is opened and the oil pump 30 and the MG 39 are conducted with each other.
- the oil discharged from the reverse discharge port 342 is supplied to the advancing hydraulic chamber 651-654 of the hydraulic actuator 60 via the actuator oil passage 367.
- the communication port 67 is closed, and the connection between the oil pump 30 and the MG 39 is cut off.
- the communication port 67 is opened and the oil pump 30 and the MG 39 are conducted with each other.
- the direction switching valve 56 can be reduced because the flow of oil in the working direction of the hydraulic actuator 60 is switched by switching the forward rotation or the reverse rotation of the oil pump 30. Further, by preventing the backflow of oil to the suction side by the suction side backflow prevention valves 57 and 58, the hydraulic pressure supplied to the hydraulic actuator 60 is secured.
- the suction side check valves 57 and 58 are not limited to one in each of the suction oil passages 32 and 33, and a plurality of suction side check valves 57 and 58 may be provided.
- the integrated pump device 905 of the fifth embodiment has a different configuration of the hydraulic circuit for switching the operating direction of the hydraulic actuator 60 from the first and third embodiments. Similar to the third embodiment, the oil pump 30 can rotate forward and reverse together with the motor 10, and the suction port and the discharge port alternate between the normal rotation and the reverse rotation. Further, the connection configuration of the suction port 342 at the time of normal rotation and the suction port 343 at the time of reverse rotation of the oil pump 30 and the hydraulic actuator 60 is the same as that of the third embodiment.
- the suction oil passage 32 at the time of normal rotation and the suction oil passage 33 at the time of reverse rotation are provided with a selection shutoff valve 59 instead of the suction side backflow prevention valves 57 and 58 of the third embodiment.
- the selective isolation valve 59 conducts the suction passage 32 at the time of normal rotation to shut off the suction oil passage 33 at the time of reverse rotation when the oil pump 30 rotates forward, and conducts the suction passage 33 at the time of reverse rotation at the time of reverse rotation of the oil pump 30 to rotate forward.
- the selective isolation valve 59 may be integrally configured as a module of the integrated pump device 905.
- the selective isolation valve 59 is not limited to the solenoid valve, and may be composed of a hydraulic switching valve that switches the spool depending on the operating pressure.
- the supply switching valve 50 is operated at a position where the supply oil passages 35 and 38 communicate directly with each other.
- the selective isolation valve 59 conducts the suction oil passage 32 during normal rotation.
- oil pump 30 rotates in the normal direction
- oil is sucked from the oil pan 31 to the suction port 342 in the normal rotation via the suction oil passage 32 in the normal rotation.
- the oil discharged from the discharge port 343 at the time of normal rotation is directly supplied to the MG 39 via the supply oil passages 35 and 38, and is also supplied to the MG 39 via the actuator oil passage 368, and the return side hydraulic chamber 661-664 of the hydraulic actuator 60. Is supplied to.
- the selective shutoff valve 59 shuts off the suction oil passage 33 at the time of reverse rotation, as indicated by the “x” mark. Further, oil is returned from the advancing hydraulic chamber 651-654 of the hydraulic actuator 60 to the suction oil passage 32 at the time of normal rotation via the actuator oil passage 367. In this way, the hydraulic actuator 60 is returned to the returned state, and the parking lock mechanism 80 is unlocked.
- the supply switching valve 50 When locked as shown in FIG. 16, the supply switching valve 50 is operated at a position where the supply oil passages 35 and 38 are directly shut off.
- the selective isolation valve 59 conducts the suction oil passage 33 at the time of reverse rotation.
- oil pump 30 reverses, oil is sucked from the oil pan 31 to the reverse suction suction port 343 via the reverse suction suction passage 33.
- the oil discharged from the reverse discharge port 342 is supplied to the advancing hydraulic chambers 651-654 of the hydraulic actuator 60 via the actuator oil passage 367.
- the selective shutoff valve 59 shuts off the suction oil passage 32 at the time of normal rotation, as indicated by the “x” mark. Further, oil is returned from the return side hydraulic chamber 661-664 of the hydraulic actuator 60 to the suction oil passage 33 at the time of reversal via the actuator oil passage 368. In this way, the hydraulic actuator 60 is in the advanced state, and the parking lock mechanism 80 is locked.
- the integrated pump device 906 of the sixth embodiment is a combination of the operation direction switching configuration of the hydraulic actuator 60 according to the fifth embodiment and the oil supply configuration to the MG 39 according to the second embodiment. That is, the operating direction of the hydraulic actuator 60 is switched by switching the forward rotation or the reverse rotation of the oil pump 30 and the switching of the selective isolation valve 59 accompanying the switching. Further, oil is supplied to MG 39 from the communication port 67 formed in the hydraulic actuator 60 via the indirect supply oil passage 68.
- the indirect supply oil passage 68 is provided with a consumption side check valve 69.
- the oil discharged from the discharge port 343 in the normal rotation is supplied to the return side hydraulic chamber 661-664 of the hydraulic actuator 60 via the actuator oil passage 368. Will be done.
- the communication port 67 is closed, and the connection between the oil pump 30 and the MG 39 is cut off.
- the communication port 67 is opened and the oil pump 30 and the MG 39 are conducted with each other.
- the oil discharged from the reverse discharge port 342 is supplied to the advancing hydraulic chamber 651-654 of the hydraulic actuator 60 via the actuator oil passage 367.
- the communication port 67 is closed, and the connection between the oil pump 30 and the MG 39 is cut off.
- the communication port 67 is opened and the oil pump 30 and the MG 39 are conducted with each other.
- the operating direction of the hydraulic actuator 60 is switched by switching the forward rotation or the reverse rotation of the oil pump 30 and the selection shutoff valve 59 accompanying the switching, so that the direction switching valve 56 can be reduced. can. Further, the hydraulic pressure supplied to the hydraulic actuator 60 is secured by preventing the backflow of oil to the suction side by the selective isolation valve 59.
- the cylinder type hydraulic actuator 70 includes a cylinder 71 and a piston 73 that reciprocates in the cylinder 71.
- the advancing side hydraulic chamber 75 is formed in one of the axial directions of the piston 73 in the cylinder 71, and the returning side hydraulic chamber 76 is formed in the other in the axial direction of the piston 73.
- the piston 73 is linked to the switching rod 84 of the parking lock mechanism 80.
- the tip of the switching rod 84 is engaged with a pin 824 provided on the detent plate 82.
- the switching rod 84 reciprocates with the reciprocating movement of the piston 73, the detent plate 82 rotates via the pin 824, and the parking rod 85 moves to switch between the P range and the notP range.
- the oil pump 30 can supply oil to the traveling side hydraulic chamber 75 and the returning side hydraulic chamber 76 via the ports 721 and 722.
- the flow of oil to each of the hydraulic chambers 75 and 76 is switched according to the first or second embodiment of the rotary hydraulic actuator 60.
- the oil in the hydraulic chamber on the discharge side is returned to the suction side of the oil pump 30.
- FIG. 19 omits the illustration of the oil flow switching path.
- the same operation of the hydraulic actuator as in the first to sixth embodiments is realized. However, it differs from the first to sixth embodiments in that it is not intended to reduce the size of the integrated pump device.
- the hydraulic actuator 60 is not limited to the parking lock actuator, and may be applied to an actuator for any purpose such as a speed change drum shift. Further, depending on the actuator to be applied, what kind of state is to be the advanced state and the returned state may be appropriately set.
- the number of vanes of the vane rotor in the hydraulic actuator 60 is not limited to the four illustrated in FIG. 4, and may be one or more as long as the pressure receiving area can be secured.
- the vane chamber of the housing is set according to the number of vanes. Further, instead of providing the stopper portion for restricting the rotation limit on the vane, it may be provided between the vane rotor main body and the housing.
- the "oil consumer" to which the oil is supplied from the oil pump 30 is not limited to MG39, and may be any device that consumes oil. Further, in the case where the backflow prevention function is provided inside the oil consumer in the second, fourth, and sixth embodiments, the consumption side backflow prevention valve 69 may not be provided in the indirect supply oil passage 68.
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Abstract
Description
以下、各実施形態の統合ポンプ装置の符号は、実施形態の番号に対応して「901」~「906」とする。まず図2~図6を参照し、第1実施形態について説明する。図2に、第1実施形態の統合ポンプ装置901及びパーキングロック機構80を示す。統合ポンプ装置901は、外形が円柱状の回転式油圧アクチュエータ60が用いられており、モータ10、オイルポンプ30及び油圧アクチュエータ60の三つが一体に構成されている。図2の例では三つが同軸且つ直列に並んで一体に構成されているが、軸がずれた状態で直列に並んで一体に構成されてもよいし、並列に並んで一体に構成されてもよい。
図7~図10を参照し、第2実施形態について説明する。第2実施形態の統合ポンプ装置902は、第1実施形態に対し、「オイル消費器」としてのMG39に油を供給する経路が異なる。第2実施形態では、オイルポンプ30とMG39との間に、第1実施形態のような直接供給油路35、38が無い。また第2実施形態では、供給切替弁50が設けられていない。
図11、図12を参照し、第3実施形態について説明する。第3実施形態の統合ポンプ装置903は、第1実施形態に対し、油圧アクチュエータ60の作動方向を切り替える油圧回路の構成が異なる。オイルポンプ30はモータ10と共に正転及び逆転可能であり、正転時と逆転時とで吸入口と吐出口とが交替する。すなわち、正転時吸入口342は逆転時吐出口であり、逆転時吸入口343は正転時吐出口である。
図13、図14を参照し、第4実施形態について説明する。第4実施形態の統合ポンプ装置904は、第3実施形態による油圧アクチュエータ60の作動方向切り替え構成と、第2実施形態によるMG39への油供給構成とが組み合わされている。つまり、オイルポンプ30の正転又は逆転の切り替え、及び、吸入側逆流防止弁57、58の機能により、油圧アクチュエータ60の作動方向が切り替えられる。また、油圧アクチュエータ60に形成された連通口67から間接供給油路68を経由してMG39に油が供給される。間接供給油路68には消費側逆流防止弁69が設けられている。
図15、図16を参照し、第5実施形態について説明する。第5実施形態の統合ポンプ装置905は、第1、第3実施形態に対し、油圧アクチュエータ60の作動方向を切り替える油圧回路の構成が異なる。第3実施形態と同様に、オイルポンプ30はモータ10と共に正転及び逆転可能であり、正転時と逆転時とで吸入口と吐出口とが交替する。また、オイルポンプ30の正転時吸入口342及び逆転時吸入口343と、油圧アクチュエータ60との接続構成についても第3実施形態と同様である。
図17、図18を参照し、第6実施形態について説明する。第6実施形態の統合ポンプ装置906は、第5実施形態による油圧アクチュエータ60の作動方向切り替え構成と、第2実施形態によるMG39への油供給構成とが組み合わされている。つまり、オイルポンプ30の正転又は逆転の切り替え、及び、それに伴う選択遮断弁59の切り替えにより、油圧アクチュエータ60の作動方向が切り替えられる。また、油圧アクチュエータ60に形成された連通口67から間接供給油路68を経由してMG39に油が供給される。間接供給油路68には消費側逆流防止弁69が設けられている。
図19を参照し、シリンダ式油圧アクチュエータ70を備える参考形態の統合ポンプ装置907について説明する。シリンダ式油圧アクチュエータ70は、シリンダ71と、シリンダ71内を往復移動するピストン73とを備える。シリンダ71内におけるピストン73の軸方向の一方に進み側油圧室75が形成され、ピストン73の軸方向の他方に戻し側油圧室76が形成されている。
(1)油圧アクチュエータ60はパーキングロックアクチュエータ以外に限らず、変速用ドラムシフト等、どのような用途のアクチュエータに適用されてもよい。また、適用されるアクチュエータに応じて、どのような状態を進み状態及び戻し状態とするかは、適宜設定されてよい。
Claims (8)
- モータ(10)と、
前記モータの駆動力により回転し、オイルパン(31)から吸入した油を吐出するオイルポンプ(30)と、
前記オイルポンプから供給される油圧により、進み状態と戻し状態とを切り替えるように作動する油圧アクチュエータ(60)と、
が一体に構成されたモジュールをなしており、
前記油圧アクチュエータは、
一つ以上のベーン室(621-624)を有するハウジング(61)と、
前記ハウジングに収容され、前記ベーン室に対応する一つ以上のベーン(641-644)が設けられたベーンロータ(63)と、を備え、
前記ベーン室における前記ベーンの周方向の一方に進み側油圧室(651-654)が形成され、前記ベーンの周方向の他方に戻し側油圧室(661-664)が形成され、
前記進み側油圧室に油圧が供給されたとき前記ベーンロータが一方向に回転して前記進み状態となり、前記戻し側油圧室に油圧が供給されたとき前記ベーンロータが他方向に回転して前記戻し状態となる統合ポンプ装置。 - 前記オイルポンプから前記進み側油圧室及び前記戻し側油圧室への油の流れを切り替える方向切替弁(56)が設けられている請求項1に記載の統合ポンプ装置。
- 前記オイルポンプは正転及び逆転可能であり、正転時と逆転時とで吸入口と吐出口とが交替し、逆転時吐出口である正転時吸入口(342)は前記進み側油圧室に接続され、正転時吐出口である逆転時吸入口(343)は前記戻し側油圧室に接続されており、
前記正転時吸入口に接続される正転時吸入油路(32)、及び、前記逆転時吸入口に接続される逆転時吸入油路(33)には、それぞれ前記オイルポンプ側から前記オイルパン側への逆流を防止する吸入側逆流防止弁(57、58)が設けられており、
前記オイルポンプの正転又は逆転の切り替えにより、前記オイルポンプから前記進み側油圧室又は前記戻し側油圧室への油の流れを切り替える請求項1に記載の統合ポンプ装置。 - 前記オイルポンプは正転及び逆転可能であり、正転時と逆転時とで吸入口と吐出口とが交替し、逆転時吐出口である正転時吸入口(342)は前記進み側油圧室に接続され、正転時吐出口である逆転時吸入口(343)は前記戻し側油圧室に接続されており、
前記オイルパンと前記正転時吸入口とを接続する正転時吸入油路(32)、及び、前記オイルパンと前記逆転時吸入口とを接続する逆転時吸入油路(33)に対し、前記オイルポンプの正転時に前記正転時吸入通路を導通して前記逆転時吸入油路を遮断し、前記オイルポンプの逆転時に前記逆転時吸入通路を導通して前記正転時吸入油路を遮断する選択遮断弁(59)が設けられており、
前記オイルポンプの正転又は逆転の切り替え、及び、それに伴う前記選択遮断弁の切り替えにより、前記オイルポンプから前記進み側油圧室又は前記戻し側油圧室への油の流れを切り替える請求項1に記載の統合ポンプ装置。 - 前記オイルポンプは、前記油圧アクチュエータへ油圧を供給する油路から分岐した直接供給油路(35、38)を介してオイル消費器(39)に接続されており、
前記直接供給油路の途中に、前記直接供給油路の連通又は遮断を切り替える供給切替弁(50)が設けられている請求項2~4のいずれか一項に記載の統合ポンプ装置。 - 前記油圧アクチュエータは、間接供給油路(68)を介してオイル消費器(39)に接続されており、
少なくとも一つの前記ベーン室は、前記進み側油圧室と前記戻し側油圧室との回転方向の中間部に、前記間接供給油路に連通する連通口(67)が形成されており、
前記ベーンロータの回転初期には、前記オイルポンプから油圧が供給される側の油圧室において前記ベーンが前記連通口を閉塞しており、
前記ベーンロータの回転開始後、前記オイルポンプから油圧が供給される側の油圧室において前記連通口が開放されると、前記オイルポンプから前記油圧アクチュエータに供給された油が前記間接供給油路を経由して前記オイル消費器に供給される請求項2~4のいずれか一項に記載の統合ポンプ装置。 - 前記間接供給油路の途中に、前記オイル消費器から前記油圧アクチュエータへの油の逆流を防止する消費側逆流防止弁(69)が設けられている請求項6に記載の統合ポンプ装置。
- 前記油圧アクチュエータは、自動車のパーキングロック機構(80)を作動させるパーキングロックアクチュエータであり、
前記進み状態で前記パーキングロック機構をロックし、前記戻し状態で前記パーキングロック機構をロック解除する請求項1~7のいずれか一項に記載の統合ポンプ装置。
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EP21906038.1A EP4265920A4 (en) | 2020-12-17 | 2021-07-22 | INTEGRATED PUMP DEVICE |
CN202180084698.8A CN116601062A (zh) | 2020-12-17 | 2021-07-22 | 集成泵装置 |
JP2022569698A JP7409525B2 (ja) | 2020-12-17 | 2021-07-22 | 統合ポンプ装置 |
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JP2005180620A (ja) | 2003-12-19 | 2005-07-07 | Toyota Motor Corp | 車両用無段変速機の潤滑・冷却装置 |
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JP7409525B2 (ja) | 2024-01-09 |
EP4265920A4 (en) | 2024-06-19 |
KR20230098669A (ko) | 2023-07-04 |
JPWO2022130671A1 (ja) | 2022-06-23 |
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