Active suspending
AssigneeBose Corporation
InventorsUpendra V. Ummethala, Daniel Francis Opila, James A. Parison, Jr., Thomas C. Shroeder, Linda T. Scully, Roman N. Litovsky
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Abstract
An apparatus has an active suspension including an electromagnetic actuator coupled to a plant in a vehicle. A force bias eliminator is coupled to the plant for causing the actuator to experience a zero-mean load, and a vibration isolation block generates a control signal based on the response of a nominal plant to measured disturbances of the actively suspended plant. A compensation system modifies the control signal in response to a difference between the response of the nominal plant to the control signal and a measured response of the actively-suspended plant to the control signal.
Claims16
An apparatus comprising:
- an active suspension including an electromagnetic actuator coupled to a plant in a vehicle;
- a force bias eliminator having the properties of a low stiffness adjustable spring coupled to the plant for causing the actuator to experience a zero-mean load;
- a vibration isolation block for generating a control signal based on the response of a nominal plant to measured disturbances of the actively suspended plant, and
- a compensation system for modifying the control signal in response to a difference between the response of the nominal plant to the control signal and a measured response of the actively-suspended plant to the control signal.
Dependencies are inferred from the claim text.