Steering control apparatus for a vehicle
US6691008B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2002 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Aug 30, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2201/087
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Whether a driver is driving intentionally is determined rapidly and accurately when steering control is performed such that a vehicle travels along recognized travel partitioning lines. A torque value deviation absolute value is calculated using the absolute value of a difference between the torque value from the previous processing and the torque value from the current processing, and is stored in a ring buffer. A torque value deviation sum value is calculated by adding all the torque value deviation absolute values stored in the ring buffer, and when a state in which the torque value deviation sum value is equal to or less than a predetermined driving intention determination threshold continues for a predetermined first threshold time (for example, several seconds; e.g. 5 seconds) or longer, it is determined that there is a decrease in the driving intention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.