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A hydraulic control oil circuit for electronic shifting of automatic gear transmission

A technology for automobile transmission and oil circuit control, applied in transmission control, fluid pressure actuating device, fluid pressure actuating system components, etc., can solve problems such as multi-shift operation time, low degree of automation, and reduced shifting speed. , to ensure the safety of the system, easy operation, and reduce the effect of shifting operations.

Active Publication Date: 2022-05-17
HARBIN DONGAN AUTOMOTIVE ENGINE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many automatic transmissions still need to manually realize the shifting operation of P, R, N and D. The shifting process still needs to use the shift lever, which requires more shifting operation time, reduces the overall shifting speed, and the degree of automation is still low. , and there is a risk of misuse

Method used

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  • A hydraulic control oil circuit for electronic shifting of automatic gear transmission
  • A hydraulic control oil circuit for electronic shifting of automatic gear transmission

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Experimental program
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Effect test

specific Embodiment approach 1

[0012] Specific implementation mode one: as Figure 1 ~ Figure 2 As shown, the present invention discloses an electronic shifting hydraulic control oil circuit of an automatic transmission automobile transmission, including a main oil circuit 1, a control oil circuit 2, an oil supply oil circuit 3, a safety valve 4, a shift solenoid valve 5 and a parking car mechanism; the main oil circuit 1 is inhaled by an oil pump and adjusted to a suitable oil pressure, one oil outlet of the main oil circuit 1 is connected with the oil inlet of the safety valve 4, and the other oil outlet of the main oil circuit 1 is connected with the The oil inlet end of the shift solenoid valve 5 is connected, and an oil outlet end of the safety valve 4 is connected with the oil inlet end of the clutch through the oil supply oil circuit 3, and the safety valve 4 is a safety valve of an automatic transmission. The spool action of 4 realizes the on-off control of the oil supply oil circuit 3. When the P g...

specific Embodiment approach 2

[0013] Specific implementation mode two: as figure 1 , 2 As shown, this embodiment is a further description of Embodiment 1. The parking mechanism includes a parking piston 6 and a parking solenoid valve 7; the push rod of the parking piston 6 cooperates with the parking solenoid valve 7 set up.

specific Embodiment approach 3

[0014] Embodiment 3: This embodiment is a further description of Embodiment 1 or Embodiment 2. Both the shift solenoid valve 5 and the parking solenoid valve 7 are normally low solenoid valves.

[0015] The oil circuit 2 is controlled by the shift solenoid valve 5, and then the safety valve 4 and the parking piston 6 are controlled to realize electronically controlled shifting; the work of the parking push rod is jointly controlled by the hydraulic oil, the spring and the parking solenoid valve 7 position; when energized, the push rod of the parking solenoid valve 7 retracts, and the parking push rod of the parking piston 6 can move freely. When the power is cut off, the parking push rod of the parking piston 6 can only move downward, and the parking piston 6 and the parking electromagnetic valve 7 jointly form a parking mechanism; the interlocking logic control ensures the safety of gear shifting.

[0016] Working principle of the present invention:

[0017] When the vehicle...

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Abstract

The utility model relates to an electronic shifting hydraulic control oil circuit of an automatic transmission automobile transmission, which belongs to the technical field of automobile transmissions. One oil outlet of the main oil circuit communicates with the oil inlet of the safety valve, the other oil outlet of the main oil circuit communicates with the oil inlet of the shift solenoid valve, and one oil outlet of the safety valve communicates with the oil inlet through the oil supply circuit. The oil inlet end of the clutch is connected, and the on-off control of the oil supply oil circuit is realized through the spool action of the safety valve. The other oil outlet end of the safety valve is connected with an oil inlet end of the control oil circuit. The oil end is communicated with another oil inlet end of the control oil circuit, and the oil outlet end of the control oil circuit is communicated with the parking mechanism. The invention improves the shifting speed, saves the shifting time, has simple structure and reasonable design, and ensures the safety of the electronic shifting system.

Description

technical field [0001] The invention relates to an electronic shifting hydraulic control oil circuit of an automatic transmission automobile transmission, which belongs to the technical field of automobile transmissions. Background technique [0002] With the acceleration of the international machinery automation process, the degree of automation of automobiles is also getting higher and higher. From the automation of auto parts processing and manufacturing to the automation of vehicle assembly, the auto industry has basically realized the automation of auto production. With the realization of production automation, the automation process of car driving is also in full swing. [0003] At present, the automobile transmission has realized the transformation from the manual transmission to the automatic transmission, which can meet the requirement of completing the shifting process in a relatively short time. However, many automatic transmissions still need to manually realiz...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/02F16H61/30F16H63/34F15B21/08
CPCF16H61/0267F16H61/30F16H63/3483F15B21/087
Inventor 周章遐于涛杨林李晓宇宋名李宾龙华静雪于泳宁李超伟李洪岩毕崇盛白婧李承鹏杨献亮闫学良
Owner HARBIN DONGAN AUTOMOTIVE ENGINE MFG CO LTD
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