Vehicle key off load reduction via off-board sensor
US9452732B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2015 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | May 21, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R25/40
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A remote sensing device is utilized to activate boundary alert sensors in a vehicle to reduce current loading during a key-off condition. Communication between the remote sensing device and the vehicle is via a radio-frequency interface that is part of a remote keyless entry system. The remote sensing device transmits a signal to the vehicle when an object is detected within a predetermined range of the remote sensing device. In response to the signal, the vehicle activates one or more boundary alert sensors. The boundary alert sensors may include a camera, a radar, and an ultrasonic sensor. The remote sensing device can be configured to extend a range of the radio-frequency interface by repeating messages that it receives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.