Cummins Inc.

Charles Wu

Yue Wang

Daniel D Wilhelm

Thomas Dollmeyer

Gregory R White

A turbocharger speed controller includes a rising rate limiter having an input receiving a turbocharger speed signal and an output producing a rate limited turbocharger speed signal, a high envelope filter having an input receiving the rate limited turbocharger speed signal and an output producing a filtered and rate limited turbocharger speed signal, a turbocharger speed control signal generator having an input receiving the filtered and rate limited turbocharger speed signal and an output producing a turbocharger speed control signal based on comparison of the filtered and rate limited turbocharger speed signal with a desired turbocharger speed, and a swallowing capacity control mechanism responsive to the turbocharger speed control signal to vary a swallowing capacity of the turbocharger.

EMI noise filter for eddy current turbo speed sensor

A system is disclosed for controlling the current used by an actuator to control actuator position. A control circuit is configured to control the actuator current to a value at or near the minimum current required to sustain the actuator in a desired position in order to maintain the actuator operating temperature below a specified maximum actuator temperature.

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Indianapolis, IN, United States of America

Charles Wu