| 摘要 |
The present invention provides a drive-train testing system that is capable of generating a large drive torque without increasing the size of a motor that simulates an engine. The drive-train testing system inputs a drive torque, which is generated according to a torque command which contains an alternating-current component having an excitation frequency, to an input shaft of a workpiece in order to evaluate the performance of said workpiece. This system is equipped with a first motor, a second motor, a torque meter for detecting a torque which acts upon the shaft between the workpiece and the second motor, and a resonance suppression circuit that divides the torque command into a first torque command and a second torque command so as to suppress torsional resonance on the basis of a value detected by the torque meter. |
| 主权项 |
1. A drive-train testing system for evaluating a characteristic of a workpiece by inputting a driving torque, which is generated in accordance with a torque command including an alternating-current component of an excitation frequency, into an input shaft of the workpiece configuring a part of a drive train, the drive-train testing system comprising:
a first motor, a second motor, one end side of a drive shaft thereof being connected to a drive shaft of the first motor, and the other end side of the drive shaft thereof being connected to an input shaft of the workpiece; a shaft torque meter for detecting a torque that acts on a shaft between the workpiece and the second motor; and a resonance suppression circuit for dividing the torque command into a first torque command for the first motor and a second torque command for the second motor, based on a detected value of the shaft torque meter, so as to suppress torsion resonance of an axis that connects the first motor, the second motor, and the workpiece. |
