Check patentability & draft patents in minutes with Patsnap Eureka AI!

Anti-skidding control method for full hydraulic drive vehicle

A control method, full hydraulic technology, applied in the direction of fluid steering mechanism, etc., can solve the problems of slow response time and throttling loss, and achieve the effect of fast response speed and impact reduction.

Active Publication Date: 2013-05-08
SANY HEAVY IND CO LTD (CN)
View PDF4 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the object of the present invention is to provide an anti-skid control method for a fully hydraulically driven vehicle, which overcomes the problem of throttling loss and slow response time in the prior art when anti-skid

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
  • Anti-skidding control method for full hydraulic drive vehicle
  • Anti-skidding control method for full hydraulic drive vehicle
  • Anti-skidding control method for full hydraulic drive vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0076] As an implementation manner, the judgment process in step 4 is specifically:

[0077] Calculate the third ratio of the speed of the slipping wheel and the speed of another wheel of the same shaft after the oil stop treatment;

[0078] Under the current rotation angle, it is judged whether the third ratio is in the preset interval; if so, it is judged that the wheel is out of the slipping state.

[0079] Further, the present invention can also compare the front and rear wheels. That is, for the left or right wheel, the wheel with the smallest speed is used as the benchmark; calculate the fourth ratio between the speed of the slipping wheel after oil stop processing and the benchmark; at the current corner, judge whether the fourth ratio is at the preset Set an interval; if so, it is judged that the wheel is out of the slipping state.

[0080] In step 5, after the oil pump is restored, the rotation speed of the hydraulic motor 2 can be coordinated with the rotation spee...

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 anti-skidding control method for a full hydraulic drive vehicle. Wheels of the full hydraulic drive vehicle are driven by a hydraulic system comprising a hydraulic pump, a plurality of hydraulic motors connected in parallel, a reversing device and an oil tank. The anti-skidding control method includes: step 1, detecting the turn angle and the speed of the wheels; step 2, deciding whether the wheels are in a skidded turn state or not according to the turn angle and the speed, and if the wheels are in a skidded turn state, executing step 3, and if not, returning to step 1; and step 3, for the skidded turn wheels in the skidded turn state, cutting off an oil way of the hydraulic motor driving the skidded turn wheels from the hydraulic pump, and controlling the hydraulic motor to absorb oil. With the anti-skidding control method, whether the wheels are in the skidded turn state or not can be judged in real time, and anti-skidding treatment can be carried out in first time, and the method has the advantages of being fast in response time, small in system impact, free of flow loss and the like.

Description

technical field [0001] The invention mainly relates to the field of full hydraulic drive vehicles, in particular to an anti-skid control method for full hydraulic drive vehicles. Background technique [0002] For vehicles with hydraulic transmission, since there is no differential locking mechanism, when the ground adhesion conditions of the wheels are different, the speed of the wheel with low resistance will increase, and slippage will occur. [0003] In addition, for the case of multiple motors connected in parallel, when the pressure drop on each motor is the same, the flow of hydraulic oil in the system will flow more to the motor with low resistance, so that the speed of the motor will increase rapidly, while the resistance is high. The flow of the wheels will decrease accordingly, causing the speed of each wheel to be unbalanced, thereby reducing the overall driving ability of the vehicle, and in severe cases, it will also affect the normal driving of the vehicle, 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
IPC IPC(8): B62D5/06B62D5/08
Inventor 石培科赵亮肖和萍
Owner SANY HEAVY IND CO LTD (CN)
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com