Actuator drive control device

• US 20060039095A1
• Filed: 08/01/2005
• Published: 02/23/2006
• Est. Priority Date: 08/20/2004
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Ishiguro, Tetsuya, Nemoto, Hirotomi
• Granted Patent: US 7,915,842 B2
• Time in Patent Office: Days
• US Class Current: 361/160
• 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; and

an actuator;

the controller supplying a target electric current to the actuator to periodically drive the actuator in an expanding and contracting manner with a target vibration waveform; and

the controller setting the target electric current by synthesizing a driving primary electric current waveform corresponding to the target vibration waveform for 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 actuator operates an active vibration isolation support system with the target vibration waveform based on a vibration state of a vibrator.

4. An actuator drive control device according to claim 1, wherein the controller sets the target electric current by adding the higher-order electric current waveform to the driving primary electric current waveform corresponding to the target vibration waveform for the actuator.

5. 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.

6. An actuator drive control device according to claim 1, wherein the actuator operates an active vibration isolation support system for a vehicle engine with the target vibration waveform depending on a vibration state of the engine.

7. An actuator drive control device for actuating an active vibration isolation support system, the actuator drive control device comprising:

a controller; and

an actuator;

the controller supplying a target electric current to the actuator to periodically drive the actuator in an expanding and contracting manner with a target vibration waveform for the actuator; and

the controller setting the target electric current by modifying a driving primary electric current waveform corresponding to the target vibration waveform for the actuator based on a higher-order electric current waveform which eliminates a higher-order vibration component of the actuator depending on the driving primary electric current waveform.

8. An actuator drive control device according to claim 7, 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.

9. An actuator drive control device according to claim 7, wherein the active vibration isolation support system is for a vehicle engine and the target vibration waveform is based on a vibration state of the engine.

10. An actuator drive control device according to claim 7, wherein the controller sets the target electric current by adding the higher-order electric current waveform to the driving primary electric current waveform corresponding to the target vibration waveform for the actuator.

11. An actuator drive control device according to claim 7, wherein the higher-order electric current waveform includes only a driving secondary electric current waveform and/or a driving tertiary electric current waveform.