High bandwidth control of magnetic ride control system

Details High bandwidth control of magnetic ride control system High bandwidth control of magnetic ride control system

2008-03-12

2011-11-08

Tran, Dalena (Department: 3664)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle subsystem or accessory control

C188S267000, C188S267100

Reexamination Certificate

active

08055408

ABSTRACT:
A semi-active suspension system that employs magnetically controlled dampers. The semi-active suspension system includes a plurality of sensors that measure vehicle parameters in response to disturbances on the vehicle and provide sensor signals to a central controller. The central controller converts the sensor signals to a flux command signal that is representative of the force on the dampers at each wheel of the vehicle. The flux command signal is sent to a local controller that generates a coil voltage that is applied to a coil within the damper. A flux feedback signal generated by the coil is estimated or measured and is compared to the flux command signal in the local controller to adjust the coil voltage to minimize the difference between the flux command signal and the flux feedback signal to provide a response to the force without a flux delay.

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