System controlling vehicle warm up operation responsive to environment CO level
US6040636A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1997 |
| Grant date | Mar 21, 2000 |
| Priority date | — |
| Expiry date | Nov 13, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K28/10
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system for controlling engine operation responsive to engine emitted CO presence in a closed space includes a CO sensor carried in a control unit in the vehicle or in the space. Other control units can be used and are associated with a space closure door and a space fan unit. When the sensor unit detects an unacceptable CO level in the space signals including discrete RF signals are generated to effect engine shutdown and to open a space closure door as well as operate a space ventilation fan until a safe CO level in the space is produced at which point second signals are generated to shut the closure door, turn off the ventilation fan and optionally re-enable engine operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.