Method of estimating brake pad wear and vehicle having a controller that implements the method
US9416835B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2014 |
| Grant date | Aug 16, 2016 |
| Priority date | — |
| Expiry date | Nov 13, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2066/006
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method of estimating brake pad wear includes determining required braking energy to be dissipated by a braking system as a fraction of total kinetic energy according to an energy partitioning model. The required braking energy is distributed to vehicle braking mechanisms according to a vehicle dynamics model. Rotor temperature of each brake rotor may be determined according to a rotor temperature model that utilizes the required braking energy and the distribution of the required braking energy, and determining brake pad wear of each brake pad according to a brake pad wear model that utilizes the rotor temperature and the distributed required braking energy. A first brake pad wear model is implemented under first operating conditions, and a second brake pad wear model under second operating conditions. The brake pad wear is indicated via a brake pad wear indicator output device. A vehicle has a controller that implements the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.