Method for automatically limiting width range in aerial work platform, involves measuring angle of elevation of forearm and adjusting maximum permitted pressure values depending on angle of elevation to stability limit of platform

摘要

The method involves providing a kinematics structure of an aerial work platform to be pivoted by a hydraulic cylinder forearm (2) whose end side is articulated with a kinematic element. The current differential pressure measured in the hydraulic cylinder of the lower arm and the angle of elevation of the forearm are compared with a maximum allowable pressure value. The angle of elevation of the forearm is measured continuously and the maximum permitted pressure values ??are adjusted depending on the angle of elevation to the stability limit of the platform.