CN113958703A - Hydraulic system and vehicle - Google Patents

Hydraulic system and vehicle Download PDF

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Publication number
CN113958703A
CN113958703A CN202010696895.2A CN202010696895A CN113958703A CN 113958703 A CN113958703 A CN 113958703A CN 202010696895 A CN202010696895 A CN 202010696895A CN 113958703 A CN113958703 A CN 113958703A
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China
Prior art keywords
oil
hydraulic system
valve
path
supply
Prior art date
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Pending
Application number
CN202010696895.2A
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Chinese (zh)
Inventor
吴秋生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Zhenyu New Energy Power Technology Co Ltd
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Shenzhen Zhenyu New Energy Power Technology Co Ltd
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Priority to CN202010696895.2A priority Critical patent/CN113958703A/en
Publication of CN113958703A publication Critical patent/CN113958703A/en
Pending legal-status Critical Current

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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
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R17/00—Arrangements or adaptations of lubricating systems or devices
    • B60R17/02—Systems, e.g. central lubrication systems
    • 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
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/16—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs
    • B60T13/18—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using pumps directly, i.e. without interposition of accumulators or reservoirs with control of pump output delivery, e.g. by distributor valves
    • 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
    • F15B21/041—Removal or measurement of solid or liquid contamination, e.g. 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
    • 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
    • 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
    • F16D25/00—Fluid-actuated clutches
    • F16D25/12—Details not specific to one of the before-mentioned types
    • F16D25/14—Fluid pressure control
    • 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
    • F16D48/00—External control of clutches
    • F16D48/02—Control by 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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • 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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
    • F16H57/0404—Lubricant filters
    • 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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0412—Cooling or heating; Control of temperature
    • 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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • F16H57/0435—Pressure control for supplying lubricant; Circuits or valves therefor
    • 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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • F16H57/0436—Pumps
    • 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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • F16H57/0445—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control for supply of different gearbox casings or sections
    • 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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0469—Bearings or seals
    • F16H57/0471—Bearing
    • 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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0473—Friction devices, e.g. clutches or 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
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0475—Engine and gearing, i.e. joint lubrication or cooling or heating thereof
    • 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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0476—Electric machines and gearing, i.e. joint lubrication or cooling or heating thereof
    • 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
    • F16H63/3023—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure
    • F16H63/3026—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by fluid pressure comprising friction clutches or 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
    • 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
    • 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
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/25—Pressure control functions
    • 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
    • F15B2211/255—Flow control functions
    • 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
    • F15B2211/615—Filtering means
    • 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
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0221—Valves for clutch control systems; Details thereof
    • 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
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0257—Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
    • F16D2048/0266—Actively controlled valves between pressure source and actuation cylinder
    • 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
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0257—Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
    • F16D2048/0287—Hydraulic circuits combining clutch actuation and other hydraulic systems
    • F16D2048/029—Hydraulic circuits combining clutch actuation with clutch lubrication or cooling
    • 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
    • F16D48/00—External control of clutches
    • F16D48/02—Control by fluid pressure
    • F16D2048/0257—Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
    • F16D2048/0287—Hydraulic circuits combining clutch actuation and other hydraulic systems
    • F16D2048/0293—Hydraulic circuits combining clutch and transmission actuation

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Transportation (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The invention discloses a hydraulic system and a vehicle, wherein the hydraulic system comprises: a supply oil path; lubricating an oil path: the lubricating oil circuit communicates with the supply oil circuit, and the lubricating oil circuit includes: a gear train lubricating oil path, a driving and power generation unit lubricating oil path and a bearing lubricating oil path; the drive oil circuit, drive oil circuit and supply oil circuit intercommunication, the drive oil circuit includes: the parking device comprises a clutch driving oil path, a parking mechanism driving oil path and a parking positioning mechanism driving oil path; the parking mechanism driving oil path and the clutch driving oil path are controlled by a first electromagnetic valve; or the parking positioning mechanism driving oil path and the clutch driving oil path are controlled by the second electromagnetic valve. Therefore, on one hand, the control logic can be simplified, the control of the hydraulic system is convenient, the volume of the hydraulic system is reduced, and the space occupation and the production cost are reduced; on the other hand, the oil leakage amount in the hydraulic system can be reduced, the working reliability of the hydraulic system is improved, and meanwhile, the response speed of the hydraulic system can be improved.

Description

Hydraulic system and vehicle
Technical Field
The invention relates to the technical field of vehicles, in particular to a hydraulic system and a vehicle.
Background
At present, new energy vehicles are more and more emphasized by various large host factories, a DHT (Hybrid Transmission Chinese name) is a Transmission specially developed for Hybrid power, an engine, a Transmission and a motor are combined, and the DHT needs to be applied to a hydraulic system in a pure electric mode, a range-extending mode and a Hybrid driving mode, so that the requirements of lubrication cooling, clutch opening and closing and parking functions of the DHT Transmission are met, and meanwhile, the key technology of the hydraulic system is to improve the efficiency of the hydraulic system, reduce the volume of the hydraulic system, simplify control, improve reliability and save cost to the greatest extent.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a hydraulic system which is small in size, simple to control, low in cost, small in leakage amount, and high in reliability.
The invention further provides a vehicle, and the vehicle adopts the hydraulic system.
According to a first aspect of the present invention, a hydraulic system for a vehicle includes: a supply oil path; lubricating an oil path: the lubricating oil passage is communicated with the supply oil passage, and the lubricating oil passage includes: a gear train lubricating oil path, a driving and power generation unit lubricating oil path and a bearing lubricating oil path; a drive oil passage that communicates with the supply oil passage, the drive oil passage including: the parking device comprises a clutch driving oil path, a parking mechanism driving oil path and a parking positioning mechanism driving oil path; the parking mechanism driving oil path and the clutch driving oil path are controlled by a first electromagnetic valve; or the parking positioning mechanism driving oil path and the clutch driving oil path are controlled by a second electromagnetic valve.
According to the hydraulic system of a vehicle of the embodiment of the present application, the clutch driving oil path and the parking mechanism driving oil path can be controlled simultaneously by making the first solenoid valve; or the clutch driving oil circuit or the parking positioning mechanism driving oil circuit can be simultaneously controlled through the second electromagnetic valve, so that the number of the electromagnetic valves in the hydraulic system can be reduced, on one hand, the control logic can be simplified, the control of the hydraulic system is facilitated, the volume of the hydraulic system is reduced, and the space occupation and the production cost are reduced; on the other hand, the oil leakage amount in the hydraulic system can be reduced, the working reliability of the hydraulic system is improved, and meanwhile, the response speed of the hydraulic system can be improved.
According to some embodiments of the invention, the first solenoid valve is configured as at least a two-position three-way normally-off valve, an inlet of the two-position three-way normally-off valve is communicated with the supply oil path, a first outlet of the two-position three-way normally-off valve is communicated with the clutch driving oil path, and a second outlet of the two-position three-way normally-off valve is communicated with the parking mechanism driving oil path; or the second electromagnetic valve is at least constructed into a two-position three-way normally-off valve, an inlet of the two-position three-way normally-off valve is communicated with the supply oil way, a first outlet of the two-position three-way normally-off valve is communicated with the clutch driving oil way, and a second outlet of the two-position three-way normally-off valve is communicated with the parking positioning mechanism driving oil way.
In some embodiments, the oil supply passage includes: the oil pump is suitable for being towards the lubricating oil way and/or the driving oil way is pumped into oil.
Furthermore, the oil pump is driven by an oil pump motor which is connected in parallel with the oil pump to pump oil.
Further, still include: the oil temperature sensor is suitable for detecting the temperature of the oil flowing out of the oil storage tank, and the oil pump motor is suitable for adjusting the rotating speed according to the temperature of the oil.
According to some embodiments of the invention, the hydraulic system further comprises: and the pressure regulating valve is arranged on the oil supply path and is suitable for regulating the oil pressure of the oil supply path under the control of the pressure regulating control valve.
Further, an oil pressure sensor is arranged between the oil pump and the pressure regulating valve, and the pressure regulating control valve is suitable for controlling the pressure regulating valve according to an oil pressure signal of the oil pressure sensor.
Further, the oil supply path further includes: the oil cooler and filter, the filter sets up the oil pump with between the batch oil tank, the oil cooler is close to the air-vent valve sets up.
In some embodiments, the lubrication oil passage and the drive oil passage are provided with orifices, and the supply oil passage is adapted to distribute oil according to the pore sizes of the orifices.
A vehicle according to an embodiment of a second aspect of the invention includes: the hydraulic system described in the above embodiments.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a hydraulic system according to an embodiment of the present invention.
Reference numerals:
in the hydraulic system 100, the hydraulic pump is,
a supply oil path 10, an oil storage tank 11, an oil temperature sensor 12, an oil pump 13, an oil pump motor 14, an oil cooler 15, a filter 16, an oil pressure sensor 17,
a lubrication oil passage 20, a train wheel lubrication oil passage 21, a drive and power generation unit lubrication oil passage 22, a bearing lubrication oil passage 23,
a drive oil passage 30, a clutch drive oil passage 31, a parking mechanism drive circuit 32, a parking positioning mechanism drive circuit 33,
a first electromagnetic valve 40, a second electromagnetic valve 50, a pressure regulating valve 60, and a pressure regulating control valve 70.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
A hydraulic system 100 and a vehicle according to an embodiment of the invention are described below with reference to fig. 1.
As shown in fig. 1, a hydraulic system 100 of a vehicle according to an embodiment of a first aspect of the present invention includes: a supply oil path 10; lubricating oil path 20: the lubrication oil passage 20 communicates with the supply oil passage 10.
Wherein, lubricating oil circuit 20 includes: a gear train lubricating oil path 21, a driving and power generating unit lubricating oil path 22 and a bearing lubricating oil path 23, wherein the gear train lubricating oil path 21 is suitable for lubricating a transmission gear train (such as a transmission shaft, a driving gear, a driven gear and the like), the driving and power generating unit lubricating oil path 22 is suitable for lubricating a driving motor, a generator and an engine, and the bearing lubricating oil path 23 is suitable for lubricating bearings in a power assembly, a transmission assembly and the like of a vehicle.
And a drive oil path 30, the drive oil path 30 communicating with the supply oil path 10, the drive oil path 30 including: the parking brake device comprises a clutch driving oil path 31, a parking mechanism driving oil path 32 and a parking positioning mechanism driving oil path 33, wherein the clutch driving oil path 31 is suitable for driving a clutch to be combined or separated under the action of hydraulic oil, the parking mechanism driving oil path 32 is suitable for driving a parking pawl to move towards or away from a parking ratchet wheel under the action of the hydraulic oil so as to realize parking brake, and the parking positioning mechanism driving oil path 33 is suitable for positioning a parking assembly when the parking brake is required so as to improve the working stability of the parking assembly.
Further, the parking mechanism drive oil passage 32 and the clutch drive oil passage 31 are controlled by the first solenoid valve 40; or the parking positioning mechanism drive oil passage 33 and the clutch drive oil passage 31 are controlled by the second solenoid valve 50.
That is to say, by providing the first solenoid valve 40 and the second solenoid valve 50, the control of the parking mechanism driving oil path 32, the parking positioning mechanism driving oil path 33 and the clutch driving oil path 31 can be realized by the two solenoid valves, the number of the solenoid valves in the hydraulic system 100 can be reduced, on the premise of simplifying the control logic, the number of parts is less, the cost is lower, the volume of the hydraulic system 100 is smaller, the space occupation is smaller, the oil leakage amount in the hydraulic system 100 is less, the response speed is faster, and the reliability is higher.
According to the hydraulic system 100 of the vehicle of the embodiment of the present application, by making it possible for the first solenoid valve 40 to control the clutch-driving oil passage 31 and the parking-mechanism-driving oil passage 32 simultaneously; or the second electromagnetic valve 50 can simultaneously control the clutch driving oil path 31 or the parking positioning mechanism driving oil path 33, so that the number of the electromagnetic valves in the hydraulic system 100 can be reduced, on one hand, the control logic can be simplified, the control of the hydraulic system 100 is facilitated, the volume of the hydraulic system 100 is reduced, and the space occupation and the production cost are reduced; on the other hand, the oil leakage amount in the hydraulic system 100 can be reduced, the operational reliability of the hydraulic system 100 can be improved, and the response speed of the hydraulic system 100 can be improved.
According to some embodiments of the present invention, in an embodiment where the clutch-driving oil passage 31 and the parking-mechanism-driving oil passage 32 share the first solenoid valve 40, the first solenoid valve 40 is configured as at least a two-position three-way normally-off valve, an inlet of the two-position three-way normally-off valve is communicated with the supply oil passage 10, a first outlet of the two-position three-way normally-off valve is communicated with the clutch-driving oil passage 31, and a second outlet of the two-position three-way normally-off valve is communicated with the parking-mechanism-driving oil passage 32.
Specifically, the first solenoid valve 40 configured as a two-position three-way normally-off valve controls the supply oil passage 10 to communicate with the clutch drive oil passage 31 when the clutch drive oil passage 31 is operated, controls the supply oil passage 10 to communicate with the parking mechanism drive oil passage 32 when the parking mechanism drive oil passage 32 is operated, and alternatively controls the clutch drive oil passage 31 and the parking mechanism drive oil passage 32 to communicate with the supply oil passage 10 (i.e., when the clutch drive oil passage 31 communicates with the supply oil passage 10, the supply oil passage 10 is disconnected from the parking mechanism drive oil passage 32; when the parking mechanism drive oil passage 32 communicates with the supply oil passage 10, the supply oil passage 10 is disconnected from the clutch drive oil passage 31).
Accordingly, the control of the clutch drive oil passage 31 and the control of the parking mechanism drive oil passage 32 are independent from each other while simplifying the control logic of the first solenoid valve 40, and the operation stability of the hydraulic system 100 can be improved.
When the clutch driving oil path 31 and the parking positioning mechanism driving oil path 33 share the second solenoid valve 50, the second solenoid valve 50 is at least configured as a two-position three-way normally-off valve, an inlet of the two-position three-way normally-off valve is communicated with the supply oil path 10, a first outlet of the two-position three-way normally-off valve is communicated with the clutch driving oil path 31, and a second outlet of the two-position three-way normally-off valve is communicated with the parking positioning mechanism driving oil path 33.
Specifically, the second solenoid valve 50, which is configured as a two-position three-way normally-off valve, controls the supply oil passage 10 to communicate with the clutch drive oil passage 31 when the clutch drive oil passage 31 is operated, controls the supply oil passage 10 to communicate with the parking positioning mechanism drive oil passage 33 when the parking positioning mechanism drive oil passage 33 is operated, and alternatively controls the clutch drive oil passage 31 and the parking positioning mechanism drive oil passage 33 to communicate with the supply oil passage 10 (i.e., when the clutch drive oil passage 31 communicates with the supply oil passage 10, the supply oil passage 10 is disconnected from the parking positioning mechanism drive oil passage 33, and when the parking positioning mechanism drive oil passage 33 communicates with the supply oil passage 10, the supply oil passage 10 is disconnected from the clutch drive oil passage 31).
Accordingly, on the premise of simplifying the control logic of the second solenoid valve 50, the control of the clutch drive oil passage 31 and the control of the parking positioning mechanism drive oil passage 33 are independent from each other, and the operation stability of the hydraulic system 100 can be improved.
In the specific embodiment shown in fig. 1, the oil supply passage 10 includes: the oil pump 13 is driven by an oil pump motor 14 arranged in parallel with the oil pump 13 to pump oil.
In other words, the supply passage 10 is selectively communicated with the lubrication passages 20 and/or the driving passages 30, so that when one or more of the plurality of types of lubrication passages 20 and the plurality of types of driving passages 30 require oil, the supply passage 10 supplies the oil to the corresponding lubrication passage 20 or driving passage 30 through the oil pump 13, and the oil is supplied more rapidly and reasonably.
Further, the hydraulic system 100 further includes: the oil temperature sensor 12, the oil temperature sensor 12 is suitable for the temperature that detects the fluid that flows out in the oil storage tank 11, and the oil pump motor 14 is suitable for according to the fluid temperature adjustment rotational speed. That is to say, when the temperature of the oil flowing out of the oil storage tank 11 is too high, the oil pump motor 14 correspondingly increases the rotating speed, so that more oil can flow into the oil circuit which needs to be cooled and lubricated in unit time, the heat exchange efficiency is improved in a mode of increasing the oil flow, the system is prevented from being overheated, and the working stability of the vehicle is improved.
According to some embodiments of the invention, the hydraulic system 100 further comprises: and a pressure regulating valve 60, the pressure regulating valve 60 being provided in the supply oil passage 10, and adapted to regulate the oil pressure of the supply oil passage 10 under the control of the pressure regulating control valve 70.
Specifically, when the pressure of the hydraulic system 100 is too high, the hydraulic pressure of the hydraulic system 100 may be controlled by the regulator valve 60, and the regulator valve 60 may be further controlled by the regulator control valve 70, so that the hydraulic pressure of the hydraulic system 100 may be more stably and reliably controlled, thereby improving the operation stability of the hydraulic system 100.
It is understood that an oil pressure sensor 17 is provided between the oil pump 13 and the regulator valve 60, and the regulator control valve 70 is adapted to control the regulator valve 60 based on an oil pressure signal of the oil pressure sensor 17.
Further, the oil supply path 10 further includes: an oil cooler 15 and a filter 16, the filter 16 being disposed between the oil pump 13 and the oil reservoir 11, the oil cooler 15 being disposed adjacent to the pressure regulating valve 60.
Therefore, impurities (such as metal debris) in the oil can be filtered by the filter 16 to improve the cleanliness of the oil flowing into the lubricating oil passages 20 and the driving oil passages 30, so that the working stability of parts corresponding to the lubricating oil passages 20 and the driving oil passages 30 is improved, the oil is cooled by the oil cooler 15, the oil is lubricated or driven, and meanwhile, the oil has a good cooling effect, particularly, the cooling effect on a power generation unit and a driving unit, and the working stability of a vehicle can be effectively improved.
In some embodiments, orifices are provided in both the lubrication and drive oil passages 20, 30, and the supply oil passage 10 is adapted to distribute oil according to the size of the orifices. Thus, the amount of oil introduced into each of the lubricating oil passages 20 and the driving oil passages 30 is made more reasonable.
A vehicle according to an embodiment of a second aspect of the invention includes: the hydraulic system 100 in the above embodiment.
According to the vehicle provided by the embodiment of the invention, by adopting the hydraulic system 100, the running stability and the safety of the vehicle can be effectively improved.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.
In the description of the present invention, "a plurality" means two or more.
In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.
In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A hydraulic system of a vehicle, comprising:
a supply oil path;
lubricating an oil path: the lubricating oil passage is communicated with the supply oil passage, and the lubricating oil passage includes: a gear train lubricating oil path, a driving and power generation unit lubricating oil path and a bearing lubricating oil path;
a drive oil passage that communicates with the supply oil passage, the drive oil passage including: the parking device comprises a clutch driving oil path, a parking mechanism driving oil path and a parking positioning mechanism driving oil path; wherein
The parking mechanism driving oil path and the clutch driving oil path are controlled by a first electromagnetic valve; or the parking positioning mechanism driving oil path and the clutch driving oil path are controlled by a second electromagnetic valve.
2. The hydraulic system of a vehicle according to claim 1, wherein the first solenoid valve is configured as at least a two-position three-way normally-off valve, an inlet of the two-position three-way normally-off valve is communicated with the supply oil passage, a first outlet of the two-position three-way normally-off valve is communicated with the clutch drive oil passage, and a second outlet of the two-position three-way normally-off valve is communicated with the parking mechanism drive oil passage; or
The second electromagnetic valve is at least constructed into a two-position three-way normally-off valve, an inlet of the two-position three-way normally-off valve is communicated with the supply oil way, a first outlet of the two-position three-way normally-off valve is communicated with the clutch driving oil way, and a second outlet of the two-position three-way normally-off valve is communicated with the parking positioning mechanism driving oil way.
3. The hydraulic system of a vehicle according to claim 1, wherein the supply oil passage includes: the oil pump is suitable for being towards the lubricating oil way and/or the driving oil way is pumped into oil.
4. The hydraulic system of a vehicle according to claim 3, wherein the oil pump is driven by an oil pump motor provided in parallel therewith to pump oil.
5. The hydraulic system of a vehicle according to claim 4, further comprising: the oil temperature sensor is suitable for detecting the temperature of the oil flowing out of the oil storage tank, and the oil pump motor is suitable for adjusting the rotating speed according to the temperature of the oil.
6. The hydraulic system of a vehicle according to claim 3, further comprising: and the pressure regulating valve is arranged on the oil supply path and is suitable for regulating the oil pressure of the oil supply path under the control of the pressure regulating control valve.
7. The hydraulic system of a vehicle according to claim 6, wherein an oil pressure sensor is provided between the oil pump and the pressure regulating valve, and the pressure regulating control valve is adapted to control the pressure regulating valve in accordance with an oil pressure signal of the oil pressure sensor.
8. The hydraulic system of a vehicle according to claim 7, wherein the supply oil passage further includes: the oil cooler and filter, the filter sets up the oil pump with between the batch oil tank, the oil cooler is close to the air-vent valve sets up.
9. The hydraulic system of a vehicle according to any one of claims 1 to 8, wherein an orifice is provided in each of the lubricating oil passage and the driving oil passage, and the supply oil passage is adapted to distribute oil in accordance with a size of a bore of the plurality of orifices.
10. A vehicle, characterized by comprising: the hydraulic system of any one of claims 1-9.
CN202010696895.2A 2020-07-20 2020-07-20 Hydraulic system and vehicle Pending CN113958703A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201723693U (en) * 2010-04-15 2011-01-26 浙江吉利汽车研究院有限公司 Hydraulic control device for automatic double-clutch speed changer
CN103061698A (en) * 2011-10-24 2013-04-24 中国石油化工股份有限公司 Automatic throttling pipe converging system
CN105620483A (en) * 2014-11-21 2016-06-01 通用汽车环球科技运作有限责任公司 Transmission with electronic range selector and pull out of park control logic
JP2017166637A (en) * 2016-03-17 2017-09-21 本田技研工業株式会社 Parking actuator valve
US20190128399A1 (en) * 2017-10-30 2019-05-02 Hyundai Motor Company Oil pressure supply system distributing lubrication for a dual clutch transmission
CN109764132A (en) * 2019-01-29 2019-05-17 东风汽车集团有限公司 A kind of hydraulic control method and system of hybrid power gearbox

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201723693U (en) * 2010-04-15 2011-01-26 浙江吉利汽车研究院有限公司 Hydraulic control device for automatic double-clutch speed changer
CN103061698A (en) * 2011-10-24 2013-04-24 中国石油化工股份有限公司 Automatic throttling pipe converging system
CN105620483A (en) * 2014-11-21 2016-06-01 通用汽车环球科技运作有限责任公司 Transmission with electronic range selector and pull out of park control logic
JP2017166637A (en) * 2016-03-17 2017-09-21 本田技研工業株式会社 Parking actuator valve
US20190128399A1 (en) * 2017-10-30 2019-05-02 Hyundai Motor Company Oil pressure supply system distributing lubrication for a dual clutch transmission
CN109764132A (en) * 2019-01-29 2019-05-17 东风汽车集团有限公司 A kind of hydraulic control method and system of hybrid power gearbox

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Application publication date: 20220121