Method of monitoring an engine coolant system of a vehicle
US9151211B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2011 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Aug 8, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01P2050/24
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of monitoring an engine coolant system includes modeling the total energy stored within an engine coolant. If an actual temperature of the engine coolant is below a minimum target temperature, the modeled total energy stored within the energy coolant is compared to a maximum stored energy limit to determine if sufficient energy exists within the engine coolant to heat the engine coolant to a temperature equal to or greater than the minimum target temperature. The engine coolant system fails the diagnostic check when the modeled total energy stored within the energy coolant is greater than the maximum stored energy limit, and the minimum target temperature has not been reached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.