SENSOR-OUTPUT CORRECTION DEVICE, LOAD-OFFSET-DEGREE CALCULATION DEVICE AND LOADING-WEIGHT-VALUE CALCULATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a sensor-output correction device by which the output of a weight sensor can be corrected with good accuracy on the basis of a nonlinear characteristic which contains the hysteresis or the like of the weight sensor as well as to provide a load-offset-degree calculation device and a loading-weight-value calculation device in which a load offset degree and a loading weight value are calculated on the basis of the output of every weight sensor after the load offset degree and the loading weight value are corrected by a sensor-output correction device. SOLUTION: A sensor-output correction device is provided with a weight sensor which is attached to a vehicle. Then, a correction-function holding means 35A by which a nonlinear characteristic containing the hysteresis of the weight sensor is approximated and which holds output-characteristic hysteresis correction functions to be divided into a plurality of linear characteristics to be used as a hysteresis loop is provided. In addition, an output-characteristic correction means 33A which corrects the output of the weight sensor by the output-characteristic correction functions selected from those held by the hysteresis correction-function holding means 35A on the basis of an increase or a decrease in the output of the weight sensor is provided.