Gear-shifting control method, gear-shifting control system and engineering machinery for traction work

A gear shift control and gear position technology, applied in the field of systems, construction machinery for traction work, and gear shift control methods, can solve the problems that the automatic gear shift technology of automobiles cannot be fully adapted, and achieve the effect of improving work efficiency

Active Publication Date: 2012-08-22
SHANTUI CONSTR MASCH CO LTD
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the operating conditions of engineering vehicles are obviously different from those of automobil

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
  • Gear-shifting control method, gear-shifting control system and engineering machinery for traction work
  • Gear-shifting control method, gear-shifting control system and engineering machinery for traction work
  • Gear-shifting control method, gear-shifting control system and engineering machinery for traction work

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0050] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0051] The embodiment of the present invention discloses a gear shift control method, a system and a construction machine used for traction work, so as to realize automatic gear shifting of the construction machine used for traction work.

[0052] A gear shift control method disclosed in this embodiment, such as figure 1 Shown, including steps:

[0053] S101, get the turbo torque M in the current throttle state T And gear signal N;

[0054] S...

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 lockable gear-shifting control method. The lockable gear-shifting control method comprises obtaining turbine torque and a gear signal under a current accelerator state; comparing the turbine torque with a preset locking torque corresponding to the gear signal; locking a hydraulic torque converter when the turbine torque is lower than the preset locking torque; maintaining the current gear when judging that the gear signal is a neutral position signal, or else comparing the turbine torque with a preset gear-shifting torque range; maintaining the current gear when the turbine torque is within the preset gear-shifting torque range; unlocking the hydraulic torque converter when the turbine torque is smaller than the minimum torque within the preset gear-shifting torque range, and raising the gear when judging that the gear signal is not the highest gear signal; and unlocking the hydraulic torque converter when the turbine torque is larger than the maximum torque within the preset torque range, and lowering the gear when judging that the gear signal is not the lowest gear signal.

Description

technical field [0001] The present invention relates to the technical field of engineering machinery, more specifically, to a shift control method, system and engineering machinery used for traction work. Background technique [0002] In order to improve the adaptability of construction machinery to harsh operating environments and working conditions, a hydraulic torque converter is added to the transmission system of traditional construction machinery for hydraulic mechanical transmission. This hydromechanical transmission device has many advantages of both hydraulic transmission and mechanical transmission, such as smooth start, rapid acceleration, etc.; at the same time, the transmission of power through liquid can reduce the dynamic load and vibration of the transmission system and prolong the use of the transmission system. Life, improve vehicle driving safety and passability. Generally, as long as the matching is reasonable, the problem of "flame-out" of the engine un...

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
IPC IPC(8): F16H59/14F16H59/54F16H61/02F16H59/02
Inventor 宋文龙徐长重张亮李宣秋宋润州冯西友李乃柱吕文彬
Owner SHANTUI CONSTR MASCH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap