DRIVING CONTROLLER, DRIVING CONTROL PROGRAM, AND MEASURING DEVICE

• US 20110160911A1
• Filed: 12/22/2010
• Published: 06/30/2011
• Est. Priority Date: 12/25/2009
• Status: Active Grant

• Current Assignee: Horiba Limited
• Original Assignee: Horiba Limited
• Inventors: Konishi, Takao
• Granted Patent: US 9,097,613 B2
• Time in Patent Office: Days
• US Class Current: 700/275
• CPC Class Codes: G01M 17/0074 Details, e.g. roller construction, vehicle restraining devices

Abstract

In order to possibly suppress noise components contained in a signal value of a detection signal for use in controlling a rate of rotations or speed, an driving controller receives a detection signal in accordance with a rate of rotations or speed and acquires a signal value of the detection signal every predetermined sampling time, and controls an actuator at control timings with predetermined intervals using the signal value, so that the rate of rotations or speed is controlled at each of the control timings in accordance with variation aspects of a plurality of signal values acquired before the outstanding control timing.

Claims

1. A driving controller comprising:

a signal value acquisition part that receives a detection signal outputted from a sensor part in accordance with a rate of rotations or speed and acquires a signal value of the detection signal every predetermined sampling time; and

a control part that controls the rate of rotations or speed at control timings with predetermined intervals using the signal value obtained by the signal value acquisition part, wherein

in the case where the plurality of signal values obtained before an outstanding control timing are monotonically increasing or monotonically decreasing, the control part controls the rate of rotations or speed using the most recent signal value before the outstanding control timing, and

in the case where the plurality of signal values obtained before the outstanding control timing are not monotonically increasing or monotonically decreasing, the control part controls the rate of rotations or speed using the average value of the plurality of signal values obtained before the outstanding control timing.

2. The driving controller according to claim 1, wherein the sensor part is provided on a rotating part of the dynamometer and outputs a pulse signal based on the rotation of the rotating part, and wherein the signal value acquisition part receives the pulse signal and counts a pulse number of the pulse signal every predetermined sampling time.

3. The driving controller according to claim 1, wherein in the case where an absolute value of a rate of change of the rate of rotations or speed indicated by the signal value of the detection signal acquired by the signal value acquisition part exceeds a threshold value that is set based on an inertia or mass of a measurement target which is provided with the sensor part, the control part does not use the acquired signal value of the detection signal for controlling the rate of rotations or speed.

4. The driving controller according to claim 3, wherein in the case where the control part does not use the signal value acquired by the signal value acquisition part, the control part controls the rate of rotations or speed using the signal value acquired by the signal value acquisition part one sampling time before the unused signal value is acquired.

5. A driving control program for allowing control equipments to execute a function as a signal value acquisition part that receives a detection signal outputted from a sensor part in accordance with a rate of rotations or speed and acquires a signal value of the detection signal every predetermined sampling time, and a function as a control part that controls the rate of rotations or speed at control timings with predetermined intervals using the signal value obtained by the signal value acquisition part, wherein

in the case where the plurality of signal values obtained before an outstanding control timing are monotonically increasing or monotonically decreasing, the control part controls the rate of rotations or speed using the most recent signal value before the outstanding control timing, and

in the case where the plurality of signal values obtained before the outstanding control timing are not monotonically increasing or monotonically decreasing, the control part controls the rate of rotations or speed using the average value of the plurality of signal values obtained before the outstanding control timing.

6. A measuring device comprising:

a signal value acquisition part that receives a detection signal outputted from a sensor part in accordance with a rate of rotations or speed and acquires a signal value of the detection signal every predetermined sampling time; and

an output part for outputting the rate of rotations or speed using the signal value obtained by the signal value acquisition part, wherein

in the case where an absolute value of a rate of change of the rate of rotations or speed indicated by the signal value of the detection signal acquired by the signal value acquisition part exceeds a threshold that is set based on an inertia or mass of a measurement target which is provided with the sensor part, the output part is that outputs the rate of rotations or speed without using the signal value acquired by the signal value acquisition part.