Controller apparatus for electric vehicle
US8558499B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2012 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Sep 13, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
To provide a controller apparatus of a type, in which the controller is given the redundancy so that the control of the drive motor can be properly performed at all times when an abnormality such as the failure of the controller occurs, with the reliability consequently increased, a plurality of controllers are provided, each including a power circuit for outputting a drive current for the drive motor and a control circuit, which is a light electric circuit, for controlling the power circuit in response to a motor drive command fed from a higher control. An abnormality determiner is provided for determining an abnormality occurring in the controller then in use according to a prescribed rule and then generating a switching signal. A switch is provided, which is operable in response to the switching signal to change the controller then in a state of functioning relative to the drive motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.