Battery electric vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsTatsuhiro Hashida, Ikuo Ando, Nanae Iwasaki
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Abstract
The battery electric vehicle selects and executes a charge mode from a first charge mode in which power supplied from an external power source device to a first neutral point of a first motor is supplied to a power storage device via the first motor and a first inverter, and a second charge mode in which power supplied from the external power source device to a second neutral point of a second motor is supplied to the power storage device via the second motor and a second inverter, based on at least one of temperatures of the first and second motors and temperatures of the first and second inverters.
Claims8
A battery electric vehicle, comprising:
- a power storage device;
- first and second motors with a three-phase coil respectively;
- first and second inverters configured to convert DC power from the power storage device to three-phase AC power and supply the three-phase AC power to the first and second motors, respectively;
- and
- a controller programmed to control the first and second inverters,
- wherein the controller is programmed to select and execute a charge mode from a first charge mode in which power supplied from an external power source device to a first neutral point of the first motor is supplied to the power storage device via the first motor and the first inverter, and a second charge mode in which power supplied from the external power source device to a second neutral point of the second motor is supplied to the power storage device via the second motor and the second inverter, based on at least one of a temperature difference between temperatures of the first and second motors, or a temperature difference between temperatures of the first and second inverters.
A battery electric vehicle, comprising:
- a power storage device;
- first and second motors with a three-phase coil respectively;
- first and second inverters configured to convert DC power from the power storage device to three-phase AC power and supply the three-phase AC power to the first and second motors, respectively;
- and
- a controller programmed to control the first and second inverters, wherein
- the controller is programmed to select and execute a charge mode from a first charge mode in which power supplied from an external power source device to a first neutral point of the first motor is supplied to the power storage device via the first motor and the first inverter, and a second charge mode in which power supplied from the external power source device to a second neutral point of the second motor is supplied to the power storage device via the second motor and the second inverter, based on at least one of temperatures of the first and second motors and temperatures of the first and second inverters, and
- the controller is programmed to switch the charge mode to the second charge mode, when the charge mode is the first charge mode and a value obtained by subtracting the temperature of the second motor from the temperature of the first motor reaches equal to or higher than a first threshold value, or when the charge mode is the first charge mode and a value obtained by subtracting the temperature of the second inverter from the temperature of the first inverter reaches equal to or higher than a second threshold value, and
- the controller is programmed to switch the charge mode to the first charge mode, when the charge mode is the second charge mode and a value obtained by subtracting the temperature of the first motor from the temperature of the second motor reaches equal to or higher than a third threshold value, or when the charge mode is the second charge mode and a value obtained by subtracting the temperature of the first inverter from the temperature of the second inverter reaches equal to or higher than a fourth threshold value.
Dependencies are inferred from the claim text.