Vehicle that maintains a temperature of a drive unit

A vehicle comprising:

• a first drive unit including a first drive motor and capable of driving wheels by at least power of the first drive motor;
• a temperature control circuit that controls a temperature of the first drive unit;
• and
• a control device capable of controlling the first drive unit and the temperature control circuit, wherein
• the control device is capable of driving the first drive unit under a plurality of drive modes including a first drive mode and a second drive mode in which an output from the first drive motor is reduced as compared with the first drive mode,
• in controlling the temperature control circuit, the control device is capable of executing normal temperature control and temperature increase control for controlling the temperature of the first drive unit to be higher than in the normal temperature control,
• when controlling the first drive unit under the first drive mode and executing the temperature increase control, the control device determines whether the drive mode of the first drive unit is changeable to the second drive mode based on a state of the vehicle,
• on determining that the drive mode of the first drive unit is changeable to the second drive mode, the control device changes the drive mode of the first drive unit to the second drive mode and continues the temperature increase control,
• on determining that the drive mode of the first drive unit is not changeable to the second drive mode, the control device maintains the drive mode of the first drive unit in the first drive mode, and ends the temperature increase control and then executes the normal temperature control, and
• the control device determines whether the drive mode of the first drive unit is changeable to the second drive mode based on a required driving force required for the vehicle to travel, as the state of the vehicle.

A vehicle comprising:

• a first drive unit including a first drive motor and capable of driving wheels by at least power of the first drive motor;
• a temperature control circuit that controls a temperature of the first drive unit;
• and
• a control device capable of controlling the first drive unit and the temperature control circuit, wherein
• the control device is capable of driving the first drive unit under a plurality of drive modes including a first drive mode and a second drive mode in which an output from the first drive motor is reduced as compared with the first drive mode,
• in controlling the temperature control circuit, the control device is capable of executing normal temperature control and temperature increase control for controlling the temperature of the first drive unit to be higher than in the normal temperature control,
• when controlling the first drive unit under the first drive mode and executing the temperature increase control, the control device determines whether the drive mode of the first drive unit is changeable to the second drive mode based on a state of the vehicle,
• on determining that the drive mode of the first drive unit is changeable to the second drive mode, the control device changes the drive mode of the first drive unit to the second drive mode and continues the temperature increase control,
• on determining that the drive mode of the first drive unit is not changeable to the second drive mode, the control device maintains the drive mode of the first drive unit in the first drive mode, and ends the temperature increase control and then executes the normal temperature control,
• the vehicle further comprises:
• a first temperature control circuit as the temperature control circuit;
• a second temperature control circuit that controls a temperature of a power conversion device provided in the vehicle;
• and
• a heat exchanger that performs heat exchange between a first temperature control medium circulating in the first temperature control circuit and a second temperature control medium circulating in the second temperature control circuit, wherein
• the second temperature control circuit includes
• a radiator that performs heat exchange between the second temperature control medium and outside air,
• a first branching flow path of the second temperature control medium bypassing the heat exchanger,
• a second branching flow path of the second temperature control medium passing through the heat exchanger, and
• a flow rate adjustment valve that adjusts a flow rate of the second temperature control medium to the second branching flow path,
• the control device is further capable of controlling the second temperature control circuit, and
• the control device controls the flow rate adjustment valve so that the flow rate to the second branching flow path is greater in the normal temperature control than in the temperature increase control.