Damping of voltage-controlled brushless motors for electric power steering systems
US6647329B2 · kind B2 · utility
22Cited by
90References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2001 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | Jun 19, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/0463
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electric power steering system includes a steering wheel, a voltage-controlled electric assist motor connected to the steering wheel or column, and an electronic controller electrically connected to the assist motor that receives a first signal representing a torque command to the assist motor and a second signal representing an angular velocity of the assist motor, and produces a voltage signal according to an assist-dependent damping function of the first and second signals, and uses the voltage signal to control the voltage-controlled electric assist motor in response to the assist-dependent damping function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.