H - Electricity – 02 – J
Patent
H - Electricity
02
J
H02J 7/14 (2006.01) B60L 3/00 (2006.01) B60L 11/12 (2006.01) B60L 11/18 (2006.01) B60K 6/04 (2006.01)
Patent
CA 2281043
The temperature of a battery in a hybrid car is supervised by temperature sensors. When the temperature of the battery is at a temperature not exceeding a predetermined temperature, a battery ECU issues a command to a control CPU to perform forcible charge/discharge of the battery to raise the temperature of the battery. When raising of the temperature is performed by charging, a requested output from an engine is increased as compared with a usual state. In such a state, motor-generators are operated as generators so as to generate electric power and charge the battery by passing an electric current to the battery rather than generating a driving force. When raising of the temperature is performed by discharging, the requested output from the engine is reduced as compared with the usual state. In this case, the motor-generators are operated as drive motors to consume electric power so as to draw electric current from the battery causing discharge of the battery. The electric current allowed to flow at. this time causes internal resistance to be generated in the battery that heats the battery from an inside portion thereof. Thus, an apparatus for controlling a charge/discharge state of a hybrid car can be provided that quickly and easily controls the temperature of the battery to a predetermined temperature.
Kikuchi Yoshiaki
Mitsui Masahiko
Nakayama Yoshiyuki
Tojima Kazuo
Gowling Lafleur Henderson Llp
Toyota Jidosha Kabushiki Kaisha
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