Steering assist apparatus for vehicle
US9598101B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2015 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Oct 20, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/0463
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Provided is a steering assist apparatus (10) for a vehicle, including a transmission device (22) configured to transmit a force and a displacement relating to steering between a steering wheel (18) and steered wheels (20L, 20R), a power steering device (12) configured to apply an assist torque to the transmission device, and a control device (50). When assuming the steering wheel, the transmission device, the power steering device, and the steered wheels as a steering system, the control device is configured to calculate, based on a product of a steering angular velocity and a derivative of the steering angular velocity, a product of the steering angular velocity and a steering torque, and a product of a steering angle and a derivative of the steering torque, a change rate (dDE) of an energy of the steering system, and control the assist torque based on the change rate of the energy of the steering system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.