To solve a problem that an inclination sensor to detect inclination of a traveling machine body by change of electrostatic capacitance has temperature drift to cause disturbance of inclination control in high accuracy.
A plurality of temperature drift characteristics A, B, C, ... of inclination sensors are stored beforehand, and one characteristic is selected from the multiple characteristics depending on a mounted sensor. A working vehicle is kept in a horizontal position and zero-point voltage of the selected temperature drift characteristic is stored together with the temperature at measurement (e.g. 25°C), and the zero-point voltage in use (standard value) is corrected by the difference from the temperature in use (e.g. 50°C) and the selected characteristic. The lateral inclination of the working vehicle is controlled based on the corrected detection value of the sensor.
YAMAZAKI HIROAKI
KIMURA SHIGEHARU
