Cooling system controller for vehicle
US6591174B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2001 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Jul 19, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/1431
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A cooling system controller for a vehicle includes a radiating rate measurement unit measuring the radiating rate of a radiator, a heating rate estimation unit estimating the heating rate of a heat generating device such as an engine, transmission and brake, a heat balance comparing unit calculating a heat balance error quantity by comparing the radiating rate measured by the radiating rate measuring unit with the heating rate estimation forecasted by the heating rate estimating unit, and calculating a radiating rate follow-up value in order to achieve a heat balance with the heating rate estimate, an adaptive control unit learning state changes of the radiating device and the heat generating device and adaptively-controlling the cooling system according to the heat balance comparison by the heat balance comparing unit, and a cooling fan control unit controlling the operation of a cooling fan in order to meet the radiating rate follow-up value calculated by the heat balance comparing unit. The cooling system controller is capable of improving the cooling efficiency of the radiator by maintaining the coolant temperature as high as possible, and minimizing the required power for the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.