Steering-wheel reversal driver alertness monitor
US4104621A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1976 |
| Grant date | Aug 1, 1978 |
| Priority date | — |
| Expiry date | Aug 19, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2540/18
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A driving assurance system for an automotive vehicle includes a steering detector which generates an electrical pulse in response to each angular movement of the steering wheel exceeding an arcuate extent less than 10.degree.. A monostable multivibrator is connected to the steering detector to generate an output pulse in response to the first one of such pulses generated by a single steering operation so that the output from the multivibrator may represent a single steering operation. The output from the multivibrator is counted for a predetermined period to determine the state of the driver to operate a warning signal when he becomes incapacitated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.