Brake booster diagnosing apparatus capable of optimizing determination of abnormality of booster
US6289271A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1999 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Aug 19, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T17/221
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Apparatus for diagnosing a booster of a vehicle braking system including a brake pedal, a master cylinder for producing a hydraulic pressure on the basis of an output force of the booster produced by boosting of a brake pedal operating force by the booster, and a wheel brake cylinder activated by the hydraulic pressure to brake a vehicle wheel, wherein a determining device is adapted to make a provisional decision as to whether the booster is abnormal or not, on the basis of a relationship between an input quantity and an output quantity of the booster, and a optimizing device is adapted to determine the provisional decision as a final decision or rectifying the provisional decision.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.