Vehicle passenger sensing system and method
US5948031A · kind A · utility
93Cited by
45References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1996 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Feb 23, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2230/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle passenger sensing system and method in which the presence and position of a passenger is determined by transmitting an electric field from a first electrode and measuring currents induced by the electric field in a plurality of receiver electrodes. The induced currents at the various receiver electrodes are then compared to determine the presence of an adult size passenger, to distinguish between front-facing and rear-facing child safety seats, and to detect when a passenger is out of position. A switching circuit is provided to selectively transmit the electric field from each of the plurality of electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.