ROAD SURFACE SITUATION JUDGING DEVICE

摘要

PURPOSE:To provide a road surface situation judging device which can judge the situation of a road surface automatically to serve for control of a car body. CONSTITUTION:A road surface situation judging circuit 38 judges whether the situation of a road surface is good on the basis of the presumed car body speed calculated by a computing circuit 36 and the differentiated value of the steering angle sensed by a sensor 26. Accordingly the control of the car body can be conducted with a high precision if a road surface situation judging signal from the judging circuit 38 is fed to a target slip ratio computing circuit 40 to serve for correction of the target slip ratio.