Keyless vehicle systems
US9725069B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 12, 2015 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Oct 12, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2009/00547
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A keyless vehicle entry and start system for motor vehicles includes an input device such as a keypad and a backup electrical power supply to unlock the door latch in the event the primary power supply fails, thereby eliminating the need for a lock cylinder. The door latch system is configured to supply electrical power from the primary electrical power supply to unlock the latch upon receiving a signal from a mobile phone, and to supply electrical power from the backup electrical power supply to unlock the latch if an authorized code is input via the keypad. The system is configured to communicate with a portable wireless device such as a smartphone utilizing various frequency bands. The system permits entry and operation of a vehicle utilizing only a smartphone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.