Method and apparatus for maximizing vehicle braking effectiveness and control
US5411322A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1993 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | Aug 31, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2230/06
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Optimum braking effectiveness and control of a vehicle are obtained by continually evaluating estimated values of friction coefficients as they increase with decreasing vehicle velocity during vehicle braking and by increasing brake pressure accordingly to maintain the pressure just under a value at which vehicle control is compromised. This is enhanced by determining a maximum pressure that can be applied to each brake sight while maintaining the rate of change of the articulation angle between a tractor and trailer of the vehicle equal to zero. A further enhancement is obtained by estimating critical vehicle velocity as a function of steering angle, thus enabling braking effectiveness and control to be a function of maneuvering conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.