发明名称 |
MOTOR DRIVE DEVICE FOR ELECTRIC FORKLIFT AND ELECTRIC FORKLIFT USING SAME |
摘要 |
<p>A torque command value generation unit (202) generates a left torque command value (Tlcom) that commands the torque of a left traveling motor (M1L) and a right torque command value (Trcom) that commands the torque of a right traveling motor (M1R) on the basis of a speed command value (Vref), a turning angle (δr), a left speed detection value (Vl) indicating the current speed of the left traveling motor(M1L), and a right speed detection value (Vr) indicating the current speed of the right traveling motor(M1R). A pitching detection unit (230) detects a pitch angular acceleration (ωp') around a pitch axis of a vehicle body of an electric forklift. A first multiplier (240) multiplies the pitch angular acceleration (ωp') detected by the pitching detection unit (230) by a first coefficient (K1) to generate a first correction value (Tcmp1). A pitching correction unit (244) applies the first correction value (Tcmp1) to each of the left torque command value (Tlcom) and the right torque command value (Trcom).</p> |
申请公布号 |
WO2014103122(A1) |
申请公布日期 |
2014.07.03 |
申请号 |
WO2013JP06414 |
申请日期 |
2013.10.30 |
申请人 |
SUMITOMO HEAVY INDUSTRIES, LTD. |
发明人 |
ITO, TAKUMI;OKADA, JUNICHI;MAKINO, KENNICHI |
分类号 |
B60L15/20;B60K1/02 |
主分类号 |
B60L15/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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