A method of operating a work vehicle according to a maximum allowable swing speed: Fid-Bau Portal

A method of operating a work vehicle according to a maximum allowable swing speed

CHRIS CESUR / SEI SHIMAHARA / SHOGO TADA / SHUJI TOKUDA / MITSUHIRO TOYODA

A first invention relates to a method comprising an arm arrangement 14 having a boom 16 and a stick 17. A boom actuator (18, Fig 1) controls the boom and at least one boom head pressure sensor generates boom head pressure data. The maximum allowable swing speed of the swing apparatus is based on boom head pressure data and a map linking boom head pressure data with the maximum allowable swing speed. The maximum operational swing speed of the swing apparatus is limited to the maximum allowable swing speed. Preferably, there is a first maximum allowable swing speed for a first boom head pressure, and a second maximum allowable swing speed for a second boom head pressure wherein the first maximum allowable swing speed is higher than the second maximum allowable swing speed and he second boom head pressure is higher than the first boom head pressure. A second invention relates to a controller incorporating the features of the first invention. A third invention relates to a work vehicle 10 that comprises a swing apparatus 11 and a controller of the second invention.

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