Four-wheel steering apparatus of a vehicle
US4621702A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Sep 5, 1984 |
| Grant date | Nov 11, 1986 |
| Priority date | — |
| Expiry date | Sep 5, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D7/1536
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a four-wheel steering apparatus of a vehicle for steering also the rear wheels in conformity with the steering of the front wheels by a steering wheel, a control force for a rear wheel steering device is mechanically taken out from a front wheel steering device and is suitably controlled in the intermediate portion and is transmitted as a steering control force to the rear wheel steering device, whereby the front wheels and the rear wheels are steered in the same direction when the absolute value of the steering angle of the front wheels is less than a predetermined value, and the rear wheels are steered in the direction reverse to the front wheels when the absolute value is greater than the predetermined value. In the intermediate portion, the taken-out control force is divided into a same direction steering control force for steering the rear wheels in the same direction as the front wheels and a reverse direction steering control force for steering the rear wheels in the direction reverse to the front wheels, and the reverse direction steering control force is absorbed and only the same direction steering control force is transmitted to the rear wheel steering device when the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.