Actuator drive control device

• US 7,915,842 B2
• Filed: 08/01/2005
• Issued: 03/29/2011
• Est. Priority Date: 08/20/2004
• Status: Expired due to Fees

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Ishiguro, Tetsuya, Nemoto, Hirotomi
• Primary Examiner(s): Benson; Walter
• Assistant Examiner(s): Paul; Antony M
• Application Number:
  US11/194,502
• Publication Number:
  US 20060039095A1
• Time in Patent Office: 2,066 Days
• Field of Search: 318/128, 318/135, 318/628, 318/629, 318/460, 318/448, 318/114, 318/623, 318/430, 318/434, 180/381, 310/51, 324/125, 324/154, 335/90, 267/140.14, 200/301, 381/71.12
• US Class Current: 318/128
• CPC Class Codes: F16F 13/26 characterised by adjusting or regulating devices responsive to exterior conditions F16F13/101 takes precedence
• CPC Class Codes: F16F 15/00 Suppression of vibrations in systems damping of non-rotary systems using inertia effect F16F7/10; prevention or isolation of vibrations in machine tools B23Q11/0032; suppression of driveline vibrations in hybrid vehicle transmissions B60W30/20 ; vehicle seat suspension devices B60N2/50; methods or devices for protecting against, or damping of, acoustic waves, e.g. sound G10K11/16; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion vibration absorbing or balancing means for aircraft propellers B64C11/008, for rotorcraft rotors B64C27/001 ; testing static and dynamic balance of machines or structures G01M1/00

Abstract

An active vibration isolation support system includes an electronic control unit which supplies a target electric current to an actuator to periodically drive the actuator in an expansion and contraction manner with a target vibration waveform. The controller sets the target electric current by synthesizing a driving primary electric current waveform corresponding to the target vibration waveform for the actuator with higher-order (driving secondary and/or tertiary) electric current waveforms which eliminate higher-order vibration components of the actuator corresponding to the driving primary electric current waveform. It is possible to alleviate a calculating load in the electronic control unit by ignoring the quaternary and still higher-order vibration components which less affect the target vibration waveform for the actuator.

Claims

1. An actuator drive control device comprising:

a controller;

an actuator; and

a movable member driven by the actuator;

wherein the controller supplies an electric current to the actuator and corrects the electric current such that the corrected electric current becomes a target electric current which causes the actuator to drive the movable member with a vibration waveform of a sine wave shape;

wherein the target electric current is determined by adding together a driving primary electric current waveform input to the actuator with a higher-order electric current waveform which eliminates a higher-order vibration component of the actuator depending on the driving primary electric current waveform.

2. An actuator drive control device according to claim 1, wherein the higher-order electric current waveform includes at least one of a driving secondary electric current waveform and a driving tertiary electric current waveform.

3. An actuator drive control device according to claim 1, wherein the higher-order electric current waveform includes only a driving secondary electric current waveform and/or a driving tertiary electric current waveform.