Electric waterpump, fluid control valve and electric cooling fan strategy
US6374780B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2000 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Jul 7, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01P2025/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for controlling engine temperature in a closed circuit cooling system 12 of an automobile 10 having an electric water pump 34, a flow control valve 42, and electric fan 40. A powertrain control module 20 electrically coupled to the electric water pump 34, flow control valve 42 and electric fan 40 interprets inputs from various sensors to adjust the pumping speed of an electric water pump 34, adjust the rotational speed of an electric fan 40, and/or adjust the flow rate through a flow control valve 42 to the radiator 46 according to a look up table as a function of fuel economy, emissions, thermal management and electrical load management.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.