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

Control method for gear selecting and shifting of automatic gearbox and vehicle applying control method

A gear shifting control and automatic shifting technology, which is applied in transmission control, components with teeth, belts/chains/gears, etc., can solve the problems of cost increase and achieve the effect of improving work stability

Inactive Publication Date: 2013-09-04
WEICHAI POWER CO LTD
View PDF7 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first method is to precisely control the pressure relief speed at both ends of the cylinder, which requires hardware such as solenoid valves to have extremely high control precision, and will greatly improve the design and processing accuracy of the cylinder, and the cost will increase

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
  • Control method for gear selecting and shifting of automatic gearbox and vehicle applying control method
  • Control method for gear selecting and shifting of automatic gearbox and vehicle applying control method
  • Control method for gear selecting and shifting of automatic gearbox and vehicle applying control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The core of the present invention is to provide a control method for gear selection and shifting of an automatic transmission, so as to reduce the overall control cost while taking into account the working stability, and at the same time effectively improve the service life of functional components. The present embodiment will be described in detail below in conjunction with the accompanying drawings.

[0027] See image 3 , which is a flow chart of the automatic transmission gear selection and shift control method according to this embodiment.

[0028] The method proceeds sequentially as follows:

[0029] S1. After the gear removal is completed, the speed adjustment of the transmission input shaft is performed; after the gear position change command is obtained, the gear removal is performed, and then the speed adjustment of the transmission input shaft is performed. Wherein, it is preferable to use a speed regulating motor arranged between the clutch and the gearbox...

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 discloses a control method for gear selecting and shifting of an automatic gearbox. The control method includes the following steps: adjusting speeds of an input shaft of the gearbox after gear removal, starting adjustment of working positions of a gear selecting cylinder on the condition that a rotating speed difference of the input shaft and an output shaft of the gearbox satisfies a range of threshold, and engaging a gear. Preferably, when the gear selecting cylinder is adjusted to be positioned in the middle, power sources at two ends of the gear selecting cylinder are kept connected; and gear shifting refers to that a gear shifting position is shifted to coincide with a side shifting-fork guide block along the direction of gear selecting, and the power sources at two ends of the gear selecting cylinder are disconnected. Preferably, before step 3, the rotating speed difference of the input shaft and the output shaft of the gearbox is controlled in real time to satisfy the range of the threshold. Compared with the prior art, the control method has the advantages that improved design of a control strategy is made, so that overall control cost can be greatly reduced, and service lives of function components can be prolonged effectively. On the basis, the invention further provides a vehicle applying the control method for gear selecting and shifting.

Description

technical field [0001] The invention relates to the technical field of vehicle power control, in particular to a method for controlling gear selection and shifting of an automatic transmission and a vehicle using the method. Background technique [0002] AMT (Automated Mechanical Transmission) is improved on the basis of the traditional manual gear transmission. It retains most of the original assembly components, and only the shift lever part of the manual operating system , Changed to an electrical control actuator, good production succession, less investment in transformation. According to the power source, the actuators of AMT have three structures: electro-hydraulic, electro-pneumatic and electro-electric. Hydraulic cylinders, cylinders and electric motors are used as power sources respectively. Gear changes need to go through two actions: gear selection and gear shifting. The gear selection action is used to select the gear to be pushed through the shift finger 5, and...

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): F16H61/28F16H59/38F16H59/46
Inventor 韩尔樑王庆来陈国涛周之光桂经良
Owner WEICHAI POWER CO LTD
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