Title:
HYBRID MOTOR VEHICLE
Document Type and Number:
Japanese Patent JP3211650
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a sufficient heating performance with a high energy efficiency and less waste by operating an engine by considering the necessity of heating in a compartment.
SOLUTION: When an air conditioner 76 is ON, a room temperature is detected with an indoor sensor 72, and engine water temperature is detected by an engine water temperature sensor 74. A temperature difference ΔT between a room temperature and set temperature of an air conditioner 76 is calculated, and a criterion T(x) is set based on the engine water temperature and whether a motor vehicle is in driving state or not. And if the temperature difference ΔT exceeds the criterion T(x), a judgment to operate an internal combustion engine 12 for heating is made. Also, the criterion T(x) becomes high as the engine water temperature increases and a higher value is obtained during vehicle driving than that at a stop state. That is, if the engine water temperature is high immediately after stopping of the internal combustion engine, for example, it can be used as it is as a heat source for heating, and it is not required to immediately operate the internal combustion engine 12.
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Inventors:
Atsushi Tabata
Yutaka Taga
Ryuji Ibaraki
Yutaka Taga
Ryuji Ibaraki
Application Number:
JP4284096A
Publication Date:
September 25, 2001
Filing Date:
February 29, 1996
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02D29/02; B60H1/02; B60H1/08; B60K6/20; B60K6/48; B60K6/543; B60L1/02; B60L50/16; B60W10/06; B60W10/30; B60W20/00; (IPC1-7): B60H1/02; B60K6/02; B60L11/14; F02D29/02
Domestic Patent References:
| JP5328521A | ||||
| JP6286459A | ||||
| JP648189A |
Attorney, Agent or Firm:
Haruyuki Ikeda (2 outside)