To provide a rotation control system for a work vehicle capable of not only adequately restricting rotation motion of the work vehicle without creating unbalance situations on the ground and like but automatically outputting a warning to an inside and an outer side of the work vehicle in a relatively low cost and without requiring manual operation.SOLUTION: A rotation control system 7 for a work vehicle is provided with: an inside warning device 90 arranged in a cab of a backhoe 1; a first outside warning device 91 arranged on an exterior side; a rotation range set part 175, setting a restricting area range 80 as a rotatable range including a restricted object restricting rotation motion of the backhoe 1, and a hydraulic alleviation range 81 to 82 as a rotatable range alleviating flow-rate change of hydraulic oil supplied to a hydraulic motor 51 for rotation in its longitudinal direction; and a rotation restricting controller 176 restricting the floor rate of the hydraulic oil supplied to the hydraulic motor 51 for the rotation and controlling to output a warning from the inside warning device 90 and the first outside warning device 91 when a rotated position (rotation angle θt) of the backhoe 1 is within the hydraulic alleviation range 81 to 82 and the restricting area range 80.SELECTED DRAWING: Figure 5
【課題】作業車両の旋回動作を接地バランスの崩れ等無く適切に規制可能で、比較的低コスト且つ人手を要さずに作業車両の内外に対して自動で警報を出力することが可能な作業車両用旋回制御システムを提供する。【解決手段】作業車両用旋回制御システム7は、バックホウ1の運転室内に配設された内部警報機90と、外装上に配設された第1外部警報機91と、バックホウ1の旋回動作を規制する規制対象を含む旋回範囲である規制領域範囲80と、その前後の旋回用油圧モータ51に供給する圧油の流量変化を緩和する旋回範囲である油圧緩衝範囲81〜82とを設定する旋回範囲設定部175と、バックホウ1の旋回位置(旋回角度θt)が油圧緩衝範囲81〜82及び規制領域範囲80内であるときに、旋回用油圧モータ51に供給する圧油の流量を制限すると共に、内部警報機90及び第1外部警報機91から警報を出力する制御を行う旋回規制制御部176と、を備える。【選択図】 図5
ROTATION CONTROL SYSTEM FOR WORK VEHICLE AND WARNING CONTROL SYSTEM FOR WORK VEHICLE
作業車両用旋回制御システム及び作業車両用警報制御システム
2019-09-19
Patent
Electronic Resource
Japanese
European Patent Office | 2024
|European Patent Office | 2024
|European Patent Office | 2024
|European Patent Office | 2024
|European Patent Office | 2024
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