Steering apparatus for vehicle
US6389342B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 7, 2000 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Apr 7, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D6/008
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention provides a linkless steering apparatus for vehicle in which a steering mechanism and steering wheel are not mechanically connected. The steering apparatus drives a steering motor of the steering mechanism in accordance with a steering torque so as to increase or decrease a steering angle. The steering torque for this purpose is calculated based on results obtained by detecting a rotational angle of an electric motor (a reaction-force motor) connected to a rotational shaft of the steering wheel and an electric current flowing to the electric motor, a moment of inertia of the steering wheel, and a moment of inertia of the electric motor. Therefore, it is possible to avoid use of a torque sensor which requires a large space for installation thereof and high cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.