Vehicle-height control system

A vehicle-height control system configured to control a vehicle height for a wheel, the vehicle-height control system comprising:

• a vehicle-height control actuator provided so as to correspond to the wheel;
• a pressure-medium supply and discharge device configured to supply and discharge a pressure medium to and from the vehicle-height control actuator;
• and
• a vehicle height controller configured to control the vehicle height for the wheel by controlling the pressure-medium supply and discharge device based on an inside temperature and an outside-air temperature to control at least one of supply and discharge of the pressure medium to and from the vehicle-height control actuator, the inside temperature being a temperature in the vehicle-height control system,
• wherein the vehicle height controller is configured to determine, based on an operating state of an engine, whether the inside temperature is greater than the outside-air temperature by a set value.