Utilizing a park brake system to improve the deceleration of a vehicle in the event of failure of the service brake system
US11332110B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 20, 2017 |
| Grant date | May 17, 2022 |
| Priority date | — |
| Expiry date | Oct 6, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2270/402
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention concerns a method for utilizing a park brake system to improve the deceleration of a vehicle in the event of failure of the service brake system, the service brake system comprising a brake pedal (2) and at least one air supply circuit (40, 42, 44), the method including the steps of a) measuring the pressure in the air supply circuit, in particular in an air tank (40, 42) of the air supply circuit, and b) when the pressure in the air supply circuit falls below a certain value, switching the park brake system from a normal mode, wherein the park brake system is released, to an assistance mode. In the assistance mode, the park brake system assists the service brake system only if the brake pedal (2) is depressed until reaching a threshold position different from a rest position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.