Block heater detection for improved startability
US8886444B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2011 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Mar 12, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P19/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of starting an internal combustion engine includes sensing a temperature of an engine coolant at an engine block of the internal combustion engine, and sensing a temperature of a secondary engine component remote from the engine block when the internal combustion engine is not running. A numerical difference between the temperature of the engine coolant and the temperature of the secondary engine component is calculated. A start parameter setting used to control the start of the internal combustion engine is adjusted based upon both the sensed temperature of the engine coolant and the numerical difference between the sensed temperature of the engine coolant and the sensed temperature of the secondary engine component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.