Vehicle anti-lock brake control apparatus including means for regulating brake pressure based on smoothed wheel acceleration and determined vehicle acceleration
US5187666A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 21, 1991 |
| Grant date | Feb 16, 1993 |
| Priority date | — |
| Expiry date | Feb 21, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/4275
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle anti-lock brake control apparatus for controlling a fluid pressure in a brake cylinder for a wheel, having a pressure-regulating valve device, a slip detecting device for detecting a slip of the wheel, and a control device for controlling the valve device based on the detected wheel slip, so as to prevent excessive slipping of the wheel. The slip detecting device includes a device for detecting a smoothed wheel acceleration value which is an acceleration value of the wheel smoothed by a predetermined time constant, and a device for determining an acceleration value of the vehicle. The control device includes a device for generating control commands to be applied to the valve device, for increasing and decreasing the fluid pressure such that a mean wheel acceleration value intermediate between adjacent minimal values of the smoothed wheel acceleration value approaches the vehicle acceleration value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.