Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hydraulic control system and method for automobile transmission
  • Hydraulic control system and method for automobile transmission
  • Hydraulic control system and method for automobile transmission

Examples

Experimental program
Comparison scheme
Effect test

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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com