公开(公告)号：US06591174B2

公开(公告)日：2003-07-08

申请号：US09900304

申请日：2001-07-06

Applicant: Soon Bae Chung ,  Chul Sung Oh ,  In Whan Seol ,  Yong Won Kim ,  Tae Jin Kim

Inventor： Soon Bae Chung ,  Chul Sung Oh ,  In Whan Seol ,  Yong Won Kim ,  Tae Jin Kim

IPC: G06F1900

CPC classification number: F01P7/048 ,  F01P2023/00 ,  F01P2023/08 ,  F01P2025/34 ,  F01P2025/36 ,  F02D2041/1417 ,  F02D2041/1431

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 cooling fan by maintaining the cooling fan speed as low as possible.