Electric parking brake apparatus
US7140697B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2003 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Nov 25, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2710/18
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
When a driver operates an activation switch, an electric parking brake apparatus performs a parking brake activation control in order to operate an electric motor until the tension of a base wire reaches a predetermined target tension to thereby bring parking brakes into an activated state. After that, the apparatus again performs the parking brake activation control when a re-activation time, which is set in accordance with the difference between an estimated temperature of a service brake and an ambient temperature, has elapsed; when the position of a shift lever has been changed; when the height of the vehicle has changed by an amount greater than a predetermined amount; or when the driver releases a brake pedal which has been continuously operated after completion of the parking brake activation control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.