ACTIVE VIBRATION ISOLATING SUPPORT APPARATUS

• US 20100244341A1
• Filed: 03/25/2010
• Published: 09/30/2010
• Est. Priority Date: 03/26/2009
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: NEMOTO, Hirotomi
• Granted Patent: US 8,632,061 B2
• Time in Patent Office: Days
• US Class Current: 267/140.140
• CPC Class Codes: B60K 5/1283 Adjustable supports, e.g. the mounting or the characteristics being adjustable
• CPC Class Codes: B60K 5/1291 Supports comprising stoppers
• CPC Class Codes: F16F 13/268 comprising means for acting dynamically on the walls bounding an equilibration chamber F16F13/264 take precedence
• CPC Class Codes: F16F 15/002 characterised by the control method or circuitry control of mechanical oscillations per se G05D19/00

Abstract

In a so-called motoring state at the time of engine starting before actuating engine, there is a problem that a roll vibration, which is generated when an engine revolution speed Ne is at a predetermined engine revolution speed and vibrates the engine and the vehicle body largely, can not be suppressed. For this reason, the present invention provides an active vibration isolating support apparatus in which the roll vibration can be suppressed in the motoring state at the time of engine starting.

Claims

1. An active vibration isolating support apparatus in which an engine is elastically supported in a vehicle body, and a controller estimates a vibrational state of the engine based on an output from a sensor to detect a revolution change of the engine and drives an actuator to extend and contract so as to suppress transmission of vibration, comprising:

a motoring state detecting means to detect that the engine is in a motoring state at the time of the engine starting before actuating the engine;

a natural roll vibration detecting means to detect occurrence of a natural roll vibration based on a detected revolution speed of the engine; and

a natural roll vibrational state information obtaining means to obtain a natural roll vibrational state information based on an increasing rate in the revolution speed of the engine when the natural roll vibration detecting means judges that the natural roll vibration has been started,

wherein natural roll vibration suppression control is performed based on the obtained natural roll vibrational state information.

2. The active vibration isolating support apparatus of claim 1, further comprising:

a storage means to store natural roll vibration controlling data for first and second cycles of the natural roll vibration in advance,

wherein when an occurrence of the natural roll vibration of the engine is detected, the natural roll vibration suppression control is performed for the first and second cycles of the natural roll vibration using the stored natural roll vibration controlling data, and

the natural roll vibration suppression control is performed for third and subsequent cycles of the natural roll vibration depending on the natural roll vibrational state information obtained for the first and second cycles.

3. The active vibration isolating support apparatus of claim 1, wherein the natural roll vibrational state information includes a period and a control gain of the natural roll vibration which is preset based on the increasing rate in the revolution speed.

4. The active vibration isolating support apparatus of claim 2, wherein the natural roll vibrational state information includes a period and a control gain of the natural roll vibration which is preset based on the increasing rate in the revolution speed.