Control apparatus for electric vehicles
AssigneeDenso Corporation
InventorTsuneyuki Egami
Life of this patent
Estimating the term…
Abstract
A motor control apparatus for an electric vehicle has an AC motor system including a power conversion unit and a motor/generator. The power conversion unit performs conversion between DC power and AC power to drive the motor/generator. The motor control apparatus further includes a decoupling control section configured to perform decoupling control, which restricts interference between system voltage control and motor torque control, by correcting a control state amount of one of the system voltage control and the motor torque control by a control state amount of the other of the system voltage control and the motor torque control.
Claims7
A motor control apparatus for an electric vehicle comprising:
- voltage conversion means, connected between a DC power source and a system power line, for supplying a DC system voltage to the system power line by converting a voltage of the DC power source;
- an AC motor system including power conversion means and a motor/generator, the power conversion means being connected to the system power line and configured to perform conversion between DC power and AC power, and the motor/generator being driven by the power conversion means;
- voltage control means configured to perform voltage control, so that the system voltage attains a target voltage;
- torque control means configured to perform torque control, which controls the power conversion means, and adjusts a phase of an AC voltage supplied to the motor/generator so that an output torque of the motor/generator attains a target torque;
- and
- decoupling control means configured to perform decoupling control, which restricts interference between the voltage control and the torque control by correcting a control state amount of one of the voltage control and the torque control by a control state amount of an other of the voltage control and the torque control.
A motor control apparatus for an electric vehicle comprising:
- voltage conversion means, connected between a DC power source and a system power line, for supplying a DC system voltage from the DC power source to the system power line;
- a plurality of AC motor systems including power conversion means, a motor/generator and torque control means, the power conversion means being connected to the system power line and being configured to convert DC power of the system voltage to AC power, the motor/generator being driven by the power conversion means, and the torque control means being configured to perform torque control by adjusting a phase of an AC voltage supplied to the motor/generator so that an output torque of the motor/generator attains a target torque;
- voltage control means configured to perform voltage control, which controls the voltage conversion means, so that the system voltage attains a target voltage;
- and
- decoupling control means configured to perform decoupling control, which restricts interference between the voltage control and the torque control by correcting a control state amount of the voltage control in accordance with a control state amount of each torque control of the plurality of AC motor systems.
Dependencies are inferred from the claim text.