Patent ID: 6685277
Filing Date: 2004-02-03
Classification: B23Q,B60T

Abstract:
A method for braking a revolvable superstructure of a working machine having a superstructure driven by a motor via a transmission, the method comprising:(a) moving a control lever to a braking position, wherein said control lever operates a control valve which transmits control signals to a pivoting pump, and wherein said control lever comprises at least one neutral position and at least two switching positions corresponding to two opposing directions of revolution of the superstructure; (b) actuating a switching logic circuit coupled to said pivoting pump when said control lever is in said braking position, wherein said switching logic circuit reverses said pivoting pump, which reverses a direction of revolution of the superstructure and automatically brakes a revolution of the superstructure by counter-steering; (c) monitoring a number of revolutions of the superstructure with a monitoring device coupled to said switching logic circuit; (d) stopping said braking of the revolution of the superstructure by counter-steering when said monitoring device detects that the superstructure has come to a standstill.