Method and apparatus for driver hands off detection for vehicles with active front steering system
US7912665B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2008 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Apr 23, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2540/18
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system and method for detecting the absence of contact between the hands of a driver of a vehicle and a steering wheel of the vehicle that have particular application in ensuring the proper functioning of various components of the driver assist steering systems and maintaining driver attentiveness. The method for detecting a no-contact condition between the hands of the driver of the vehicle and the steering wheel includes generating a model of the no-contact condition using a second-order transfer function. The method further includes obtaining a set of model-generated steering dynamics by estimating a plurality of parameters of the second-order transfer function and a set of measured steering dynamics using a plurality of sensors. The set of model-generated steering dynamics and the set of measured steering dynamics are then compared and the no-contact condition is detected based on this comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.