Vehicle grille shutter system and method of operation
US10730383B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2015 |
| Grant date | Aug 4, 2020 |
| Priority date | — |
| Expiry date | Jun 5, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/88
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system and method for controlling an active grille shutter system for a vehicle upon startup of an associated engine includes determining if flaps of the AGS system are in a closed position upon cold-startup of the vehicle; moving the flaps to the closed position if it is determined that the flaps are not in the closed position upon cold-startup of the vehicle; and maintaining the flaps in the closed position until an engine coolant temperature (ECT) reaches a predetermined temperature that initially overshoots a predetermined continuous ECT target associated with steady-state operation of the engine. The initial overshoot of the ECT during cold-startup is configured to rapidly raise an engine oil temperature (EOT) to a predetermined continuous EOT target thereby reducing viscosity of the engine oil during cold-startup operation and increasing fuel efficiency of the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.