Control unit for controlling traveling state and air conditioning state

A control unit that controls a travelling state and an air conditioning state of a vehicle comprising:

• a drive control unit performing a vehicle speed control and a power train control, the vehicle speed control selectively executing an acceleration operation where an engine mounted on the vehicle is operated and a deceleration operation where the engine is stopped to allow the vehicle to coast, the power train control selectively executing activation or deactivation of the engine;
• and
• an air conditioning control unit that controls an air conditioning system provided in the vehicle to execute an air conditioning control, wherein
• a condition of control is changed maintaining the control thereof, for at least one of the vehicle speed control, the power train control and the air-conditioning control while the air conditioning system is operating, compared to a case where the air conditioning system is not operating,
• the air conditioning control is executed while the air conditioning system is operated without stopping an air conditioning function, regardless of the vehicle speed control and the power train control,
• the drive control unit is configured to change a target acceleration factor in the vehicle speed control, and
• the drive control unit is configured to control the target acceleration factor in the vehicle speed control while the air conditioning system is operating in a cooling mode, such that the higher a temperature of refrigerant sent to an evaporator in the air conditioning system, the lower the target acceleration factor in the vehicle speed control, or such that the larger an amount of a temperature decrease requirement to the air conditioning system, the lower the target acceleration factor in the vehicle speed control.