Ignition interlock system
US5065604A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 11, 1990 |
| Grant date | Nov 19, 1991 |
| Priority date | — |
| Expiry date | Jun 11, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/5898
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The ignition interlock system prevents movement of the ignition switch of a motor vehicle from the "Off" position to the "Lock" position unless the transmission selector is in the "Park" position. The ignition interlock system includes a locking lever spring biased to lock the reciprocable slide of the ignition switch mechanism when the transmission selector is not in the "Park" position. The locking lever is unlocked from the reciprocable slide by energization of a solenoid in response to the transmission selector being placed in the "Park" position with the ignition key inserted in the ignition switch. A control circuit energizes or deenergizes the solenoid in response to input signals representing the transmission selector position and the ignition key in/out position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.