Continental Automotive Systems Us, Inc.

Ballard Power Systems Corporation

Christophe Soudier

Venkatapathi Raju Nallapa

Richard Joseph Hampo

Vinod Reddy

Bing Cheng

Lizhi Zhu

Steven J Kowalec

A torque current peak compensation value is subtracted from a torque current reference value, where the torque current peak compensation value is based at least in part on a determined peak of vibration. A torque current compensation value is subtracted from the results to produce an adjusted torque current reference value.

Method, apparatus and article for vibration compensation in electric drivetrains

A control system, method and article allows a monitoring module to monitor operation of a main controller in an electric drive, by providing questions and evaluating the accuracy and/or timeliness of responses from the main controller. Upon detection of an excessive number of incorrect or late responses, the monitoring module can shutdown operation, and may provide an alternative communications path, thereby preventing corrupt data from reaching a vehicle network, while providing communications for diagnostic and recovery such as by provision of new software or firmware instructions. The main controller may monitor the operation of the monitoring module, taking appropriate action if a fault is detected. Disabling a supply of power to a traction motor may be based on current operating conditions, such as speed.

Controller method, apparatus and article suitable for electric drive

A controller implements a state machine for operating the bi-directional power converter with a flexible load pattern while maintaining a thermal condition of the power converter within acceptable limits. The state machine implements a wait loop in response to selected conditions to maintain the thermal condition.

Method, apparatus and article for bi-directional DC/DC power conversion

A control subsystem for an electric motor determines whether power was interrupted, and delays torque production if power was interrupted. The control subsystem may employ two separate non-volatile memory locations, or alternatively a single non-volatile memory location.

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Ypsilanti, MI, United States of America

Christophe Soudier