Prime-mover dynamo plants – Electric control – Engine control
Reexamination Certificate
2011-03-15
2011-03-15
Gon, J (Department: 2839)
Prime-mover dynamo plants
Electric control
Engine control
C290S04000F
Reexamination Certificate
active
07906863
ABSTRACT:
In a hybrid vehicle of the invention, a hybrid electronic control unit sets a drive point of an engine and torque commands Tm1* and Tm2* of motors MG1and MG2in a range of an input limit and an output limit of a battery, in order to satisfy a preset power demand, and sends the engine drive point to an engine ECU and the torque commands Tm1* and Tm2* simultaneously with the input limit and the output limit of the battery to a motor ECU. The motor ECU verifies whether the operations of the motors MG1and MG2with the torque commands Tm1* and Tm2* are in the range of the input limit and the output limit of the battery. When the operations of the motors MG1and MG2are out of the range of the input limit and the output limit, the motor ECU resets the torque commands Tm1* and Tm2* to make the operations of the motors MG1and MG2in the range of the input limit and the output limit and controls the operations of the motors MG1and MG2with the reset torque commands Tm1* and Tm2*. This arrangement effectively prevents the battery from being overcharged with excessive electric power or from being over-discharged to supply excessive electric power even in the state of electric power imbalance due to a communication lag.
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Gon J
Kenyon & Kenyon LLP
Mohandesi Iraj A
Toyota Jidosha Kabshiki Kaisha
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