Method of Measuring Suspension Displacement of Vehicle Electronically Controlled Suspension

摘要

The present invention relates to a method of measuring the suspension displacement of an automobile electronically controlled suspension device. The conventional height sensor 10 senses a change in suspension displacement due to load or load variation from a vehicle body or a road surface, It is necessary to maintain an appropriate ride quality of the vehicle by performing control for maintaining the control arm 14. The measurement of the suspension displacement due to the change in the angle of the control arm 14 due to the rotation of the control arm 14 is merely a function of the length But can not provide the ECU with a precise fluctuation of the suspension displacement due to the load variation of the suspension.;The present invention solves the above problem by mounting a strain gauge 22 on the coil spring 18 and measuring the displacement of the suspension from the stress acting on the coil spring, as shown in FIG.