Hydraulic control system and method for automobile transmission

A technology of hydraulic control system and automobile gearbox, which is applied in the direction of transmission control, components with teeth, belt/chain/gear, etc., to achieve the effect of flexible spatial arrangement, good response characteristics, and accurate control characteristics

Active Publication Date: 2015-04-22
SHANGHAI RUIDI AUTOMOTIVE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] However, the current electro-hydraulic gear selection and shifting actuator can basically only realize the gear selection and shifting operation of five gears (ie, 1st gear, 2nd gear, 3rd gear, 4th gear, and 5th gear).

Method used

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  • Hydraulic control system and method for automobile transmission
  • Hydraulic control system and method for automobile transmission
  • Hydraulic control system and method for automobile transmission

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Embodiment Construction

[0034] In the following, the same reference numerals refer to the same elements.

[0035] According to the automobile transmission hydraulic system of the present invention, the electro-hydraulic gear selection and shifting of six gears is realized.

[0036] figure 1 The oil circuit control diagram of the hydraulic system of the automobile transmission according to the first embodiment of the present invention is shown. exist figure 1In this hydraulic system, the motor 5 provides the driving force to the oil pump 4, and the oil pump 4 supplies oil to the accumulator 11 through the check valve 7, and then the accumulator 11 supplies oil to the hydraulic actuator system through the hydraulic control oil circuit 12. Oil. The hydraulic actuator system includes a clutch control subsystem, a gear selection subsystem and a gear shift subsystem. These three subsystems are all controlled by the control unit 24 . In the clutch control subsystem, the control unit 24 controls the clu...

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Abstract

The invention provides a hydraulic control system and a hydraulic control method for an automobile transmission with six gear positions, wherein electro-hydraulic type gear selecting and shifting of the transmission with six gear positions are effectively achieved by the combined function of a difunctional hydraulic cylinder and a proportional solenoid; compared with the gear selecting and shifting among five gear positions in the prior art, the system has good response characteristic and accurate control characteristic, and facilitates the more flexible space arrangement.

Description

technical field [0001] The invention designs an automobile gearbox hydraulic control system and method. Background technique [0002] The gear selection and shifting actuators of automobile automatic transmissions are generally divided into electric gear selection and shifting actuators and electro-hydraulic gear selection and shifting actuators. Among these two types of actuators, the electro-hydraulic shift actuator is more reliable, and its internal layout can be more flexible. [0003] However, the current electro-hydraulic gear selection and shifting actuator can basically only realize the gear selection and shifting operation of five gears (ie, 1st gear, 2nd gear, 3rd gear, 4th gear, and 5th gear). At present, it is hoped that the electro-hydraulic gear selection and shifting actuator can realize more gear selections, in order to improve the response characteristics and control characteristics, and make the input performance more excellent. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/28F16H59/02
CPCF16H59/02F16H61/2807F16H2306/00
Inventor 刘学强陈乐融张利红
Owner SHANGHAI RUIDI AUTOMOTIVE TECH
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