SHOE SLIP CONTROL METHOD AND APPARATUS THEREFOR FOR CATERPILLAR ?R VEHICLE.

摘要

This invention relates to a shoe slip control method and apparatus therefor which is directed to automatically prevent in advance a track from excessively slipping beyond the state where the maximum pulling force is attained, and to liberate an operator from a troublesome operation requiring a high level of skill. The shoe slip control method can be accomplished by switching the operation mode to a predetermined engine output mode when a shoe slip ratio exceeds a predetermined value during the operation of the caterpillar vehicle. The apparatus includes acceleration detection means (27) for detecting the acceleration in the travelling direction of the vehicle, a track travelling speed calculation circuit (31), an actual vehicle speed calculation circuit (32) for calculating the actual vehicle speed on the basis of the acceleration thus detected, a shoe slip ratio calculation circuit (33) for calculating the shoe slip ratio from the actual vehicle speed and the track travelling speed, and an engine output control circuit for switching the engine output mode on the basis of the shoe slip ratio thus calculated.