Secondary sensing for intelligent passive entry passive start polling
US8706350B2 · kind B2 · utility
58Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2011 |
| Grant date | Apr 22, 2014 |
| Priority date | — |
| Expiry date | Dec 30, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R25/24
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system and method for providing a polling signal transmitted from a vehicle that is received by a key fob held by an authorized user of the vehicle as the user approaches the vehicle. When the key fob receives the polling signal, it will automatically transmit a command signal back to the vehicle for some vehicle operation to be performed. Battery power is conserved on the vehicle by using an infrared detector to first detect whether a living thing is in proximity to the vehicle prior to the vehicle transmitting the polling signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.