Method and apparatus for improving the operational characteristics of a vehicle
US4965729A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 9, 1988 |
| Grant date | Oct 23, 1990 |
| Priority date | — |
| Expiry date | Jun 9, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2552/40
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for improving the operation of a vehicle detects unevennesses of the road on which the vehicle is moving by sensing oscillations at two positions of the vehicle arranged in spaced relationship behind each other in the direction of movement of the vehicle. The actual speed of the vehicle is determined by correlating the oscillations sensed and by multiplying the time delay therebetween with the distance of the two positions. The slippage of the wheels, which is an important parameter in particular for braking the vehicle, may be calculated by setting the determined actual speed into relation to the speed of the vehicle as derived from the rotary speed of the wheels. The vehicle may be controlled in dependence of this slippage and other parameters derived from the actual speed, the slippage and forces vertically acting onto the wheels of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.