Control method for electronically controlled thermostat
US7171927B2 · kind B2 · utility
2Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 17, 2004 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | May 27, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01P2070/04
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control method for an electronically controlled thermostat includes that an actuator is used for cooling-water control of an internal combustion engine and the actuator is capable of optionally varying the valve-opening ratio. An engine control unit computes a target temperature by means of various engine parameters and distributes the power distribution amount required to operate the actuator so that the cooling water temperature reaches the target temperature. The power distribution amount distributed to the actuator is determined by monitoring only the actual water temperature of the cooling water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.