Title:
ハイブリッド電気自動車用電動冷媒ポンプの制御システム
Document Type and Number:
Japanese Patent JP4095786
Kind Code:
B2
Abstract:
This invention relates to a hybrid electric vehicle component coolant control system and method. The coolant system has an electric pump to move coolant through a closed system including engine and motor components. Such components to be cooled can include any electric motors, power electronics, engine, and transmission. The preferred embodiment controls coolant flow to the vehicle engine and motor in a single closed loop.Vehicle components have temperature sensors that send temperature signals to an electric coolant pump duty cycle control strategy. The control strategy makes a determination of a duty cycle of the electric coolant pump as a function of the temperatures of vehicle components and orders the duty cycle of the electric pump.In the preferred configuration, engine temperature sensors can acquire either engine coolant temperature or engine cylinder head temperature. The preferred configuration includes a heater core in the coolant flow path connected between vehicle components and the electric coolant pump return, whereby passenger heating requests are facilitated. Several coolant flow paths among the vehicle components are possible including a parallel and series configuration. The control system can also use a rolling average filter routine connected between the temperature sensor for the motor and the control strategy to determine the average temperature of the motor.
Inventors:
David Lee Bogs
Mark William Peters
Stephen John Kotley
Mark William Peters
Stephen John Kotley
Application Number:
JP2001329646A
Publication Date:
June 04, 2008
Filing Date:
October 26, 2001
Export Citation:
Assignee:
Ford Motor Company
International Classes:
F01P3/12; B60H1/08; F01P7/16; B60H1/22; B60K6/22; B60L50/16; B60W10/30; B60W20/00; F01P7/04; F04B49/06; F01P3/02
Domestic Patent References:
| JP5069328U | ||||
| JP11285106A | ||||
| JP55076819U | ||||
| JP1096420A | ||||
| JP2000274240A |
Attorney, Agent or Firm:
Hiroshi Maeda
Hiroshi Koyama
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Teshima Masaru
Atsushi Fujita
Hiroshi Koyama
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Teshima Masaru
Atsushi Fujita