Electronic park brake system for electric vehicles
US9050905B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2014 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Jan 29, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method and apparatus are provided for securing an electric vehicle from unwanted movement when the electric vehicle is parked. The electric vehicle includes a drive wheel and an electric motor for driving the drive wheel. The method includes the steps of: (a) placing the electric vehicle in an electronic park brake mode; (b) automatically detecting that the electric vehicle is rolling from an initial position; and (c) automatically causing the electric motor to apply a reverse torque to the drive wheel to return the electric vehicle to the initial position or automatically causing the electric motor to lock the drive wheel to inhibit further movement of the electric vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.