Vehicle braking system with a pneumatic brake booster
US6755112B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2002 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Sep 20, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T13/57
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a vehicle brake system with a pneumatic brake booster which includes an input member being actuated by a vehicle operator and an output member as well as a control housing that carries a movable wall and accommodates a reaction plate at least in part, wherein there is further provision of means for detecting the point of maximum boosting of the pneumatic brake booster that can be used for the actuation of another brake force boosting device.The core of the present invention lies in that a switching or sensor means is provided with senses the maximum boosting force on the basis of a maximum deformation of a reaction element that is indirectly arranged between an output element and a movable wall in that the maximum approach between the output member representative of the output force and the movable wall representative of the booster force is sensed. Further, appropriate means sense the hold time during which the mentioned signal is applied. Only when the signal is applied during the total hold time, a signal reporting the point of maximum boosting is output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.