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

Integrated steering control scheme for double-pump and double-motor hydrostatic drive tracked vehicle

A technology of steering control and dual motors, applied in non-deflectable wheel steering, steering mechanisms, control devices, etc., can solve problems such as difficult to meet, large steering power, etc.

Inactive Publication Date: 2021-06-01
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] (3) The vehicle needs a huge steering power when turning, which is difficult to meet

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
  • Integrated steering control scheme for double-pump and double-motor hydrostatic drive tracked vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] see figure 1 , the present invention provides a technical solution for the integrated steering control scheme of the dual-pump dual-motor hydrostatically driven crawler vehicle:

[0022] according to figure 1 shown, including the following steps:

[0023] S1: The throttle adjustment device is connected to the accelerator pedal through a mechanical mechanism, so that the accelerator pedal can control the operating state of the engine;

[0024] S2: The...

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 an integrated steering control scheme for a double-pump and double-motor hydrostatic drive tracked vehicle. The scheme comprises the steps that S1 an accelerator adjusting device is connected with an accelerator pedal through a mechanical mechanism, so that the accelerator pedal can control the operation state of an engine; S2 a central steering controller explains an accelerator pedal signal, a steering wheel signal, a brake pedal signal and a driving mode signal input by a driver into target rotating speeds nM1 and nM2 of motors on the two sides, and sends the target rotating speeds nM1 and nM2 to a pump displacement controller and a motor displacement controller in real time; S3 the pump and motor displacement controllers adjust the actual rotating speed of motors on the two sides to be consistent with the target rotating speed, and vehicle steering reflecting the intention of the driver is achieved. Two steering branches can be controlled respectively and can also be controlled to be a variable pump and a constant displacement motor and a constant displacement pump and a variable displacement motor in a segmented mode through the variable pump and the variable displacement motor, so that the vehicle has the characteristics of low-speed constant torque and high-speed constant power, and meanwhile, the vehicle can run at an extremely low speed.

Description

technical field [0001] The invention relates to a control scheme, in particular to an integrated steering control scheme for a double-pump and double-motor hydrostatic drive crawler vehicle, and belongs to the technical field of hydrostatic drive. Background technique [0002] Nowadays, according to the structure of tracked vehicles, there are mainly mechanical transmission, hydraulic transmission and hydraulic-mechanical integrated transmission. According to the transmission power flow, it is mainly divided into single-flow transmission and double-flow transmission. [0003] The main method of single-flow transmission in mechanical transmission is that the gearbox outputs the same speed to the driving wheels on both sides under direct driving conditions, and controls the two-stage planetary steering gear on both sides to change the speed when turning to achieve successful steering. The dual-flow transmission is divided into the direct drive branch and the steering branch t...

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): B62D11/00B60K17/10
CPCB62D11/005B60K17/10
Inventor 郑长松陈漫张小鹏李勇杨硕侯锐张炜王成黄静秋
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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