Steering control device
US10486737B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 19, 2017 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Feb 13, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/0496
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A steering control device has a steering actuator as an operation target, the steering actuator includes a motor and a steering mechanism mechanically connected to a rotary shaft of the motor. The steering control device includes a controller configured to perform i) a low-temperature process of changing a torque of the motor when an estimated value estimated from a temperature of a lubrication target part of the steering mechanism is equal to or lower than a predetermined value with respect to when the estimated value is higher than the predetermined value and ii) an estimation process of calculating the estimated value which is set be lower than a detected value of a temperature sensor detecting a temperature of a predetermined member attached to the steering mechanism based on a heat emission parameter of the steering actuator associated with a current flow with the detected value as an input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.