发明名称 WORK VEHICLE WITH MOTOR, AND CONTROL METHOD FOR MOTOR
摘要 PROBLEM TO BE SOLVED: To provide a work vehicle which is capable of performing feedback control with high accuracy on the basis of rotation angles and current values of motors even in the case where one A/D converter is shared by a plurality of motors.SOLUTION: A driven part is driven by the plurality of motors. A power conversion circuit that is disposed correspondingly to each of the motors supplies a drive current to the corresponding motor. A current sensor measures the drive current supplied to the motor. A rotation angle detection device that is disposed correspondingly to each of the plurality of motors measures the rotation angle of the corresponding motor. An A/D converter successively performs A/D conversion on the current values measured by a plurality of current sensors. On the basis of the current values outputted from the A/D converter and the rotation angles measured by the rotation angle detection devices, a control part controls the power conversion circuits. The rotation angle detection device is controlled for each motor in such a manner that acquisition timing of the rotation angle by the rotation angle detection device is matched with acquisition timing of the current value on which the A/D conversion is performed by the A/D converter.SELECTED DRAWING: Figure 1
申请公布号 JP2016039659(A) 申请公布日期 2016.03.22
申请号 JP20140159990 申请日期 2014.08.06
申请人 SUMITOMO HEAVY IND LTD 发明人 MOGI HIROSHI;YAMAGUCHI AKIRA;KUBO KOHEI
分类号 H02P5/46 主分类号 H02P5/46
代理机构 代理人
主权项
地址