CN110578794A - Hydraulic control oil way of special DHT hybrid transmission - Google Patents
Hydraulic control oil way of special DHT hybrid transmission Download PDFInfo
- Publication number
- CN110578794A CN110578794A CN201910832360.0A CN201910832360A CN110578794A CN 110578794 A CN110578794 A CN 110578794A CN 201910832360 A CN201910832360 A CN 201910832360A CN 110578794 A CN110578794 A CN 110578794A
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- Prior art keywords
- valve
- solenoid valve
- clutch
- communicated
- oil
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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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
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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
- 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
- F16H57/0446—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control the supply forming part of the transmission control unit, e.g. for automatic transmissions
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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
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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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- 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
- F16H2061/0034—Accumulators for fluid pressure supply; Control thereof
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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
- F16H2061/0037—Generation or control of line pressure characterised by controlled fluid supply to lubrication circuits of the gearing
Abstract
The invention discloses a hydraulic control oil way of a special DHT hybrid transmission, belongs to the technical field of hydraulic control oil ways of transmissions, and aims to solve the problem that the traditional hydraulic oil way of the transmission is poor in overall efficiency and oil saving capability. The oil pump is respectively communicated with a system pressure regulating valve, a safety valve, a first clutch solenoid valve, a second clutch solenoid valve, a fourth clutch solenoid valve, a solenoid valve pressure limiting valve and a switch valve through a first oil path, the system pressure regulating valve is respectively communicated with a flow regulating valve and a main oil pressure solenoid valve, the first clutch solenoid valve is communicated with a C1 clutch, the second clutch solenoid valve is communicated with a C2 clutch, the fourth clutch solenoid valve is communicated with a logic valve, the switch valve is respectively communicated with a hydraulic piston solenoid valve and a hydraulic piston, and the hydraulic piston is communicated with a parking locking solenoid valve. The hydraulic control oil circuit of the special DHT hybrid transmission can enable a motor to work in a high-efficiency area, improve the efficiency of the motor and prolong the service life of the motor.
Description
Technical Field
The invention relates to a control oil way, in particular to a hydraulic control oil way of a special DHT hybrid transmission, and belongs to the technical field of hydraulic control oil ways of transmissions.
Background
The new energy automobile technology is undoubtedly one of important technologies for solving global energy and environmental problems, and the challenges and the urgent nature of technical innovation faced by China as a major automobile consumption country are stronger. Over a longer period of time, various forms of hybrid technology will be important transition routes. According to whether the technology is upgraded based on the traditional power, the hybrid power technology can be divided into P-frame hybrid power and power split hybrid power, the P-frame hybrid power technology is upgraded based on the traditional power, the development period is short, the industrialization cost is low, but the efficiency and the oil saving capability of the whole machine are limited; the power-split hybrid power is a brand-new developed special electrically-driven transmission for hybrid power, has obvious advantages in cost, arrangement space, efficiency and oil saving capability, and is widely considered to be the hybrid power technology closest to the pure electric technology.
Disclosure of Invention
the invention aims to provide a hydraulic control oil way of a special DHT hybrid transmission, which aims to solve the problems of poor overall efficiency and poor oil saving capability of the hydraulic oil way of the traditional transmission.
a hydraulic control oil circuit of a DHT hybrid special transmission comprises an oil pump, a system pressure regulating valve, a flow regulating valve, a main oil pressure solenoid valve, a safety valve, a lubricating flow solenoid valve, a first clutch solenoid valve, a second clutch solenoid valve, a third clutch solenoid valve, a fourth clutch solenoid valve, a logic valve, a solenoid valve pressure limiting valve, a hydraulic piston solenoid valve, a switch valve, a hydraulic piston and a parking locking solenoid valve;
The oil pump is respectively communicated with the system pressure regulating valve, the safety valve, the first clutch solenoid valve, the second clutch solenoid valve, the fourth clutch solenoid valve, the solenoid valve pressure limiting valve and the switch valve through a first oil path, the system pressure regulating valve is respectively communicated with a flow regulating valve and a main oil pressure solenoid valve, the flow regulating valve is respectively communicated with a motor cooling, cooling and lubricating flow solenoid valve, a first clutch solenoid valve is communicated with a C1 clutch, a second clutch solenoid valve is communicated with a C2 clutch, a fourth clutch solenoid valve is communicated with a logic valve, the logic valve is respectively communicated with a B2 brake, a B1 brake and a third clutch solenoid valve, a switch valve is respectively communicated with a hydraulic piston solenoid valve and a hydraulic piston, the hydraulic piston is communicated with a parking locking solenoid valve, and the main oil pressure solenoid valve is respectively communicated with the lubricating flow solenoid valve, the third clutch solenoid valve, a solenoid valve pressure limiting valve and the hydraulic piston solenoid valve.
preferably: a first energy accumulator is arranged between the system pressure regulating valve and the main oil pressure solenoid valve, a second energy accumulator is arranged between the first clutch solenoid valve and the C1 clutch, a third energy accumulator is arranged between the second clutch solenoid valve and the C2 clutch, and a fourth energy accumulator is arranged between the fourth clutch solenoid valve and the logic valve.
Compared with the existing product, the invention has the following effects:
The structure is compact, parking electronic locking and unlocking are realized by electro-hydraulic control, the cooling flow of the motor and the lubricating flow of the transmission mechanism are controllable, the device is suitable for the DHT hybrid special transmission with four or less power transmission friction elements, and the multi-mode smooth switching of the DHT hybrid special transmission is supported; the TCU controls the opening of the lubricating flow regulating valve by the control electromagnetic valve according to the cooling and transmission mechanism lubricating flow requirements required by the heating amount of the motor under different running working conditions so as to distribute the cooling flow of the motor and the lubricating flow of the transmission mechanism.
Drawings
Fig. 1 is a schematic structural diagram of a hydraulic control oil passage of a DHT hybrid-dedicated transmission.
In the figure: 1-oil pump, 2-system pressure regulating valve, 3-flow regulating valve, 4-main oil pressure solenoid valve, 5-safety valve, 6-lubricating flow solenoid valve, 7-first clutch solenoid valve, 8-second clutch solenoid valve, 9-third clutch solenoid valve, 10-fourth clutch solenoid valve, 11-logic valve, 12-solenoid valve pressure limiting valve, 13-hydraulic piston solenoid valve, 14-switch valve, 15-hydraulic piston, 16-parking locking solenoid valve, 17-first accumulator, 18-second accumulator, 19-third accumulator and 20-fourth accumulator.
Detailed Description
Preferred embodiments of the present invention are explained in detail below with reference to the accompanying drawings.
As shown in fig. 1, the hydraulic control oil path of the DHT hybrid special transmission according to the present invention includes an oil pump 1, a system pressure regulating valve 2, a flow regulating valve 3, a main oil pressure solenoid valve 4, a safety valve 5, a lubrication flow solenoid valve 6, a first clutch solenoid valve 7, a second clutch solenoid valve 8, a third clutch solenoid valve 9, a fourth clutch solenoid valve 10, a logic valve 11, a solenoid pressure limiting valve 12, a hydraulic piston solenoid valve 13, a switching valve 14, a hydraulic piston 15, and a parking lock solenoid valve 16;
The oil pump 1 is respectively communicated with a system pressure regulating valve 2, a safety valve 5, a first clutch solenoid valve 7, a second clutch solenoid valve 8, a fourth clutch solenoid valve 10, a solenoid valve pressure limiting valve 12 and a switch valve 14 through a first oil path, the system pressure regulating valve 2 is respectively communicated with a flow regulating valve 3 and a main oil pressure solenoid valve 4, the flow regulating valve 3 is respectively communicated with a motor cooling, cooling and lubricating flow solenoid valve 6, the first clutch solenoid valve 7 is communicated with a C1 clutch, the second clutch solenoid valve 8 is communicated with a C2 clutch, the fourth clutch solenoid valve 10 is communicated with a logic valve 11, the logic valve 11 is respectively communicated with a B2 brake, a B1 brake and a third clutch solenoid valve 9, the switch valve 14 is respectively communicated with a hydraulic piston solenoid valve 13 and a hydraulic piston 15, the hydraulic piston 15 is communicated with a parking locking solenoid valve 16, the main oil pressure solenoid valve 4 is respectively communicated with the lubricating flow solenoid valve 6, The third clutch solenoid valve 9, the solenoid valve pressure limiting valve 12 and the hydraulic piston solenoid valve 13 are communicated.
Further: a first accumulator 17 is arranged between the system pressure regulating valve 2 and the main oil pressure solenoid valve 4, a second accumulator 18 is arranged between the first clutch solenoid valve 7 and the C1 clutch, a third accumulator 19 is arranged between the second clutch solenoid valve 8 and the C2 clutch, and a fourth accumulator 20 is arranged between the fourth clutch solenoid valve 10 and the logic valve 11.
The flow of the oil supplied by the DHT system is adjusted by adjusting the rotating speed of the electronic pump according to working conditions, so that the flow requirements of different working conditions are met; the system pressure regulating valve 2 is a main pressure regulating valve for regulating the system pressure to a constant pressure; the main oil pressure solenoid valve 4 is a main oil pressure control solenoid valve and acts on the pressure regulating system oil pressure of the main pressure regulating valve through the control solenoid valve; the flow regulating valve 3 is a flow regulating valve for controlling the cooling and lubricating flow of the motor; the lubricating flow electromagnetic valve 6 is a motor cooling and lubricating flow adjusting electromagnetic valve, and the flow adjusting valve 3 is controlled to be in different opening degrees by controlling the electromagnetic valve 6 to perform flow distribution adjustment; the safety valve 5 is a safety valve for protecting the system, and when the system is in an abnormal state, the pressure of the DHT system is protected to be stabilized in a safety range; the first clutch electromagnetic valve 7 and the second clutch electromagnetic valve 8 are clutch control electromagnetic valves, and the working principle of the clutch control electromagnetic valves is the same as that of a traditional power AT control clutch; the third clutch solenoid valve 9 is a switch type solenoid valve; the fourth clutch solenoid valve 10 is a clutch control solenoid valve; the brake B1 and the brake B2 are controlled by the combination of the third clutch solenoid valve 9, the fourth clutch solenoid valve 10 and the logic valve 11, namely when the S1 switch valve 9 is not electrified, the logic valve is positioned at the right side under the action of spring force, an oil path (c) is communicated with an oil path (c), the solenoid valve 10 controls the brake B2, when the S1 solenoid valve 9 is electrified, oil pressure exists in the oil path (c), the logic valve 11 moves to the left under the action of the oil pressure, the oil path (c) is communicated with the oil path (B), and the solenoid valve 10 controls the brake B1; 13 is a switch type electromagnetic valve S2; 14 is a switch valve for switching the action of the parking piston; the parking hydraulic piston is 15 and connected with a parking executing element, the parking locking electromagnetic valve is 16 and connected with the parking hydraulic piston, namely when a vehicle is stopped and a driver is in a P-gear state, the S2 switching valve 13 is electrified, the switching valve 14 moves to the right side under the action of pressure, a parking hydraulic piston cavity is communicated with an oil drainage oil way EX, a parking hydraulic piston pressure cavity is restored under the action of spring force after pressure relief, a parking mechanism enters the P-gear, and the parking electromagnetic valve acts to lock the P position of the parking piston; when a driver operates the gear shifting handle to enter a non-P gear, the S2 switch electromagnetic valve is powered off, the piston pressure cavity is communicated with the oil supply oil way, the parking piston moves under the action of oil pressure to overcome the resistance of the spring, the parking mechanism and the parking gear are released from the DHT output gear, the parking electromagnetic valve acts to lock the parking piston at a non-P position, and the vehicle can run.
The working principle is as follows: when a vehicle stops in a P gear, a parking locking electromagnetic valve locks a parking hydraulic piston in a P gear position, when a driver puts off the P gear, an electronic pump supplies oil, an S2 electromagnetic valve is powered off, a piston pressure cavity is communicated with an oil supply oil way, the parking piston overcomes spring resistance to move under the action of oil pressure, the piston enters a non-P gear position, the parking locking electromagnetic valve locks the non-P gear position, a clutch electromagnetic valve is controlled to enable DHT to run in modes and gears such as series connection, parallel connection and ECVT in a switching mode, for example, a C1 clutch and a B2 brake are combined into a double-motor mode 1 gear, and a C2 clutch is combined into a parallel connection 1 gear mode; according to the cooling and transmission mechanism lubricating flow demand required by the heat productivity of the motor under different running working conditions, the TCU controls the opening of the lubricating flow regulating valve by the electromagnetic valve 6 so as to distribute the motor cooling flow and the transmission mechanism lubricating flow, for example, climbing and high-load working conditions, and the electromagnetic valve 6 is controlled to be powered off, so that the opening of a motor cooling oil way of the lubricating regulating valve is maximum, the flow for supplying motor cooling is maximum, the motor can work in a high-efficiency area, and the motor efficiency and the service life are improved.
This embodiment is only illustrative of the patent and does not limit the scope of protection thereof, and those skilled in the art can make modifications to its part without departing from the spirit of the patent.
Claims (2)
1. The utility model provides a special derailleur hydraulic control oil circuit is thoughtlessly moved to DHT which characterized in that: the hydraulic control system comprises an oil pump (1), a system pressure regulating valve (2), a flow regulating valve (3), a main oil pressure solenoid valve (4), a safety valve (5), a lubricating flow solenoid valve (6), a first clutch solenoid valve (7), a second clutch solenoid valve (8), a third clutch solenoid valve (9), a fourth clutch solenoid valve (10), a logic valve (11), a solenoid valve pressure limiting valve (12), a hydraulic piston solenoid valve (13), a switch valve (14), a hydraulic piston (15) and a parking locking solenoid valve (16);
The oil pump (1) is respectively communicated with a system pressure regulating valve (2), a safety valve (5), a first clutch solenoid valve (7), a second clutch solenoid valve (8), a fourth clutch solenoid valve (10), a solenoid valve pressure limiting valve (12) and a switch valve (14) through a first oil way, the system pressure regulating valve (2) is respectively communicated with a flow regulating valve (3) and a main oil pressure solenoid valve (4), the flow regulating valve (3) is respectively communicated with a motor cooling, cooling and lubricating flow solenoid valves (6), the first clutch solenoid valve (7) is communicated with a C1 clutch, the second clutch solenoid valve (8) is communicated with a C2 clutch, the fourth clutch solenoid valve (10) is communicated with a logic valve (11), the logic valve (11) is respectively communicated with a B2 brake, a B1 brake and a third clutch solenoid valve (9), the switch valve (14) is respectively communicated with a hydraulic piston solenoid valve (13) and a hydraulic piston (15), the hydraulic piston (15) is communicated with the parking locking solenoid valve (16), and the main oil pressure solenoid valve (4) is respectively communicated with the lubricating flow solenoid valve (6), the third clutch solenoid valve (9), the solenoid valve pressure limiting valve (12) and the hydraulic piston solenoid valve (13).
2. the hydraulic control oil circuit of the DHT hybrid special-purpose transmission according to claim 1, wherein: a first energy accumulator (17) is arranged between the system pressure regulating valve (2) and the main oil pressure electromagnetic valve (4), a second energy accumulator (18) is arranged between the first clutch electromagnetic valve (7) and the C1 clutch, a third energy accumulator (19) is arranged between the second clutch electromagnetic valve (8) and the C2 clutch, and a fourth energy accumulator (20) is arranged between the fourth clutch electromagnetic valve (10) and the logic valve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910832360.0A CN110578794A (en) | 2019-09-04 | 2019-09-04 | Hydraulic control oil way of special DHT hybrid transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910832360.0A CN110578794A (en) | 2019-09-04 | 2019-09-04 | Hydraulic control oil way of special DHT hybrid transmission |
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| Publication Number | Publication Date |
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| CN110578794A true CN110578794A (en) | 2019-12-17 |
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| CN201910832360.0A Pending CN110578794A (en) | 2019-09-04 | 2019-09-04 | Hydraulic control oil way of special DHT hybrid transmission |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425590A (en) * | 2020-03-24 | 2020-07-17 | 哈尔滨东安汽车发动机制造有限公司 | Automatic transmission hydraulic control oil way with electronic gear shifting function |
| CN112943752A (en) * | 2021-02-06 | 2021-06-11 | 哈尔滨东安汽车发动机制造有限公司 | Special gearbox hydraulic circuit for hybrid power |
| CN112963524A (en) * | 2021-02-06 | 2021-06-15 | 哈尔滨东安汽车发动机制造有限公司 | Electronic gear shifting hydraulic control oil circuit of automatic transmission of automobile |
| CN114135595A (en) * | 2021-12-01 | 2022-03-04 | 哈尔滨东安汽车发动机制造有限公司 | Hydraulic control oil way of rear-drive transmission |
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| KR100309152B1 (en) * | 1997-12-31 | 2002-02-19 | 이계안 | Hydraulic control system for automatic transmission |
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| CN107763207A (en) * | 2017-10-25 | 2018-03-06 | 哈尔滨东安汽车发动机制造有限公司 | The mixed dynamic automatic transmission hydraulic control oil circuits of 6 fast P2 of one kind |
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| KR100309152B1 (en) * | 1997-12-31 | 2002-02-19 | 이계안 | Hydraulic control system for automatic transmission |
| CN207333678U (en) * | 2016-06-24 | 2018-05-08 | 腓特烈斯港齿轮工厂股份公司 | Electro-hydraulic control system of speed variator with parking lock valve |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111425590A (en) * | 2020-03-24 | 2020-07-17 | 哈尔滨东安汽车发动机制造有限公司 | Automatic transmission hydraulic control oil way with electronic gear shifting function |
| CN112943752A (en) * | 2021-02-06 | 2021-06-11 | 哈尔滨东安汽车发动机制造有限公司 | Special gearbox hydraulic circuit for hybrid power |
| CN112963524A (en) * | 2021-02-06 | 2021-06-15 | 哈尔滨东安汽车发动机制造有限公司 | Electronic gear shifting hydraulic control oil circuit of automatic transmission of automobile |
| CN112963524B (en) * | 2021-02-06 | 2022-05-17 | 哈尔滨东安汽车发动机制造有限公司 | Electronic gear shifting hydraulic control oil circuit of automatic transmission of automobile |
| CN114135595A (en) * | 2021-12-01 | 2022-03-04 | 哈尔滨东安汽车发动机制造有限公司 | Hydraulic control oil way of rear-drive transmission |
| CN114135595B (en) * | 2021-12-01 | 2023-06-23 | 哈尔滨东安汽车发动机制造有限公司 | Hydraulic control oil way of rear-drive transmission |
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Application publication date: 20191217 |