Electric power steering apparatus
US7740103B2 · kind B2 · utility
22Cited by
3References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 27, 2008 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Nov 30, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/046
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
When a current input to a step-up voltage device of an electric power steering apparatus is equal to or higher than a first threshold current and an input voltage applied to the step-up voltage device is lower than a first threshold voltage, the step-up voltage device of the electric power steering apparatus discontinuously switches an output voltage to a voltage lower than a rated step-up voltage. When the input voltage becomes lower than a second threshold voltage which is lower than the first threshold voltage, the step-up voltage device sets the output voltage to a voltage equal to the input voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.