Steering-wheel revolution number correction system of all-wheel-drive vehicle
US6857494B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2001 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Nov 10, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D12/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Turning radius is calculated from steering angles of steering-wheels and articulation angles of respective frames, and the steering-wheels are automatically rotated faster than rear-wheels based on the turning radius, the revolution number of the rear-wheels, engine speed of an engine and a speed range of hydraulic motors, so that conventional trouble for manipulating operation lever etc. while turning a motor grader and skill-requiring work for adjusting the revolution number of the steering-wheels in accordance with the revolution number of the rear-wheels can be eliminated, thereby easily and accurately controlling the revolution number of the steering-wheels and securely preventing tight-corner braking phenomenon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.