System and method for controlling compounding in a brake actuator
US11186262B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2018 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Sep 8, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2121/06
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system for controlling compounding in a vehicle brake actuator includes first and second valves configured to control, respectively, a first fluid pressure in a parking brake chamber of a brake actuator that acts against a spring force applied by a spring of the actuator to a pushrod of the actuator and a second fluid pressure in a service brake chamber of the actuator that applies a fluid force to the pushrod. A controller is configured to receive first and second fluid pressure signals indicative of the first and second fluid pressures, determine a total brake actuator force applied to the pushrod responsive to the first and second fluid pressure signals and control at least one of the first and second valves responsive to the total brake actuator force to adjust a corresponding one of the first and second fluid pressures and thereby obtain an adjusted total brake actuator force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.