Drive device and control method for vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsYoshihiro SONODA, Ryota Arakawa, Masashi Yoshimi, Hiroki Tashiro
Life of this patent
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Abstract
The vehicle includes an AC motor generator (MG) connected to a driving wheel, a battery, an inverter configured to convert DC power supplied from the battery to AC power and supply the AC power to the MG, and a vehicle ECU configured to control the inverter. The vehicle ECU performs a zero torque control to drive the inverter so that the output torque from the MG is zero when the battery is prohibited from being charged while the MG is being driven to rotate by the motive power from the driving wheel.
Claims8
A drive device for a vehicle equipped with an AC rotating electrical machine connected to a driving wheel, comprising:
- a power storage device;
- an inverter configured to convert DC power supplied from the power storage device to AC power and supply the AC power to the rotating electrical machine;
- and
- a control device configured to control the inverter,
- the control device being configured to perform a zero torque control to drive the inverter so that the output torque from the rotating electrical machine is zero when the power storage device is prohibited from being charged while the rotating electrical machine is being driven to rotate by the motive power from the driving wheel.
A method for controlling a vehicle which is equipped with an AC rotating electrical machine connected to a driving wheel, a power storage device, and an inverter, the inverter being configured to convert DC power supplied from the power storage device to AC power and supply the AC power to the rotating electrical machine, the method comprising:
- determining whether or not the power storage device is prohibited from being charged while the rotating electrical machine is being driven to rotate by the motive power from the driving wheel;
- and
- performing a zero torque control to drive the inverter so that the output torque from the rotating electrical machine is zero when the power storage device is prohibited from being charged while the rotating electrical machine is being driven to rotate by the motive power from the driving wheel.
Dependencies are inferred from the claim text.