Deceleration and compensation for low vacuum levels in a brake-by-wire braking system
US6443535B1 · kind B1 · utility
7Cited by
15References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2000 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Oct 11, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T17/221
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system or method for compensating for low vacuum levels in a brake-by-wire system includes continually monitoring the level of vacuum in a vacuum booster. The state or condition of the vacuum source is also monitored to determine whether it is on or off. When the vacuum source is off, the level of vacuum is measured to determine whether it is at or below a critical level. If the level of vacuum is critically low, the vacuum source is turned on. If the vacuum level is not critically low, the hydraulic boost gain is modified in order to provide more braking pressure in response to brake force exerted at the brake pedal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.