Method and device for ascertaining at least one variable regarding a state of a brake fluid in a brake system of a vehicle
US9701298B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2015 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Sep 15, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N11/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and device for ascertaining at least one variable regarding a state of a brake fluid in a brake system of a vehicle includes a device determining a volume flow variable regarding a volume flow, which flows via a simulator separation valve into a simulator by taking into account at least one displacement speed variable regarding a displacement speed of a brake pedal/rod piston; determining a simulator internal pressure variable regarding a simulator internal pressure by taking into account at least one pedal travel variable regarding a pedal travel; determining a pressure difference variable regarding a pressure difference at the simulator separation valve by taking into account the simulator internal pressure variable and an admission pressure variable regarding an admission pressure; and determining at least one variable by taking into account the at least one determined volume flow variable and the at least one determined pressure difference variable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.