| 摘要 |
Method and apparatus for reducing the piston speed in a piston and cylinder unit 1, when the piston approaches its end position. The end position of the piston is detected, and a signal is produced to start end-position damping. The damping is performed in two stages. In the first stage 14, a time delay is produced and, in the next stage 15, the actual braking (retardation) of the piston is effected. The invention also comprises an electronic braking arrangement consisting of a damping-activating unit 13 connected to transducers 6, a braking-delay unit 14 connected to the unit 13 and also to the control handle 5 in question and a reference signal source, as well as a brake unit 15 connected to the delay unit 14 and adapted so as, on activation, to generate a signal U to an adjusting system 3 for regulating the supply of pressure medium to the piston and cylinder unit 1. <IMAGE>
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