Vehicle control device

A vehicle control device for a vehicle, comprising:

• an engine;
• and
• a power converter that converts power of an electrical storage device into a driving power of a rotation electric machine for traveling, so that the vehicle travels by selectively executing one of a first traveling mode in which the vehicle travels only by a torque generated by the engine, a second traveling mode in which the engine is stopped and the vehicle travels only by a torque generated by the rotation electric machine, and a third traveling mode in which the vehicle travels by a torque of both the engine and the rotation electric machine,
• wherein, an air pressure around the vehicle and a system voltage are in a predetermined area of a preset map, the predetermined area corresponding with an operation mode, the preset map indicating a relationship between the air pressure and the system voltage;
• and
• wherein, in response to determining the air pressure around the vehicle and the system voltage are in the predetermined area, the vehicle control device is configured to execute the operation mode to reduce a switching speed of a switching element of the power converter to be lower than a normal speed, and cause the engine to operate, limit a torque of the rotation electric machine, and execute the third traveling mode.