A servo control apparatus includes a velocity command creation unit; a velocity detection unit; a velocity control gain; a torque command creation unit; a filter configured to attenuate a particular frequency band component in a torque command value; a sine-wave sweep input unit configured to perform a sine-wave sweep in a predetermined frequency range; a frequency characteristics calculation unit configured to calculate a frequency characteristic of a sine-wave; and a filter adjustment unit configured to attenuate a particular frequency band component in a torque command value. A signal is input to the velocity control gain. The signal is obtained by adding a sine-wave to a difference between a velocity command value and a velocity detected. The filter adjustment unit measures an influence of the velocity control gain on a resonance frequency and resonance peak amplitude, while changing a value of the velocity control gain, thereby adjusting the filter.

A method for controlling a multi-axle work vehicle based on axle loading may generally include monitoring a load associated with loads transmitted through a pivot pin of a track assembly of the work vehicle, wherein the track assembly is configured to be rotatably coupled to an engine of the work vehicle via an axle assembly. In addition, the method may include estimating an axle load applied through the axle assembly based on the monitored load and providing a control output for the work vehicle based on the estimated axle load

In a method for controlling a vehicle drive unit having at least two individual drives and a vehicle control unit, a continuous torque comparison between a permissible torque M.sub.Zul and a further torque is performed by the control unit. The permissible torque M.sub.Zul is continuously compared to setpoint torques M.sub.setpoint,V and M.sub.setpoint,E for the least two individual drives.

In a method for controlling a vehicle drive unit having at least two individual drives and a vehicle control unit, a continuous torque comparison between a permissible torque M.sub.Zul and a further torque is performed by the control unit. The permissible torque M.sub.Zul is continuously compared to setpoint torques M.sub.setpoint,V and M.sub.setpoint,E for the least two individual drives.

In an embodiment, a rotorcraft includes: a plurality of engines; a flight control computer connected to the plurality of engines, the flight control computer being configured to: receive an operating parameter of a first engine of the plurality of engines; determine an engine output ramping rate for the first engine according to a difference between the operating parameter of the first engine and a nominal limit of the first engine; and increase the output of the first engine in response to detecting an outage of another engine of the plurality of engines, the output of the first engine being increased according to the engine output ramping rate.

In an embodiment, a rotorcraft includes: a plurality of engines; a flight control computer connected to the plurality of engines, the flight control computer being configured to: receive an operating parameter of a first engine of the plurality of engines; determine an engine output ramping rate for the first engine according to a difference between the operating parameter of the first engine and a nominal limit of the first engine; and increase the output of the first engine in response to detecting an outage of another engine of the plurality of engines, the output of the first engine being increased according to the engine output ramping rate.

A method of torque control and a torque control apparatus for a pneumatic torque tool are provided. The method includes: connecting a torque control apparatus between an air supply system and a pneumatic torque tool; under predetermined working and control conditions, driving the pneumatic torque tool at the first and second working air pressures to calibrate output torque, and to obtain maximum and minimum torque values; constructing correspondence curve between air pressure and torque value based on the first and second working air pressures and the maximum and minimum torque values obtained; entering any target torque value ranging from minimum torque value to maximum torque value of the correspondence curve to obtain a corresponding working air pressure value and drive the pneumatic torque tool; and verifying whether all working and control conditions are controlled within a predetermined range of variation to control the output torque.

A method of torque control and a torque control apparatus for a pneumatic torque tool are provided. The method includes: connecting a torque control apparatus between an air supply system and a pneumatic torque tool; under predetermined working and control conditions, driving the pneumatic torque tool at the first and second working air pressures to calibrate output torque, and to obtain maximum and minimum torque values; constructing correspondence curve between air pressure and torque value based on the first and second working air pressures and the maximum and minimum torque values obtained; entering any target torque value ranging from minimum torque value to maximum torque value of the correspondence curve to obtain a corresponding working air pressure value and drive the pneumatic torque tool; and verifying whether all working and control conditions are controlled within a predetermined range of variation to control the output torque.

The present invention implements a model-tracking motor control apparatus for stabilizing behavior of a controlled object. The control apparatus (1) includes: a feedback control part (20), generating a driving torque instruction value used to enable the servo motor (2) to perform driving based on a detection value of an encoder (4) that performs detection on a rotational state of a servo motor (2); and a feedforward control part (10), generating a model torque instruction value, and outputting the model torque instruction value to the feedback control part (20), where the feedforward control part (10) has a model torque limiter (104) that limits the model torque instruction value within a first limit range.

The invention relates to a motor control device, a control method, an information processing program and a recording medium, even though the network for receiving an output permission signal is not connected, the test run of the motor can be safely performed. Even though a signal generating element (104) of a servo driver (10) does not receive the output permission signal through a field network (30), if the connection to the field network (30) is determined to be not required, the signal generating element (104) does not generate the safety command.