Martin Grossbichler

Title: Martin Grossbichler and Motor-Drive Control Innovation

Introduction

Martin Grossbichler is an inventor associated with Aschach, Austria. His patent work addresses control methods for permanent magnet synchronous machines, with a focus on adjusting stator current through position-error information.

Latest Patents

Grossbichler is associated with 1 patent: “Enhanced I/F Control System and Method for Permanent Magnet Synchronous Machines.” The invention describes injecting a high-frequency signal to determine position-error information and automatically adjust the magnitude of stator current during I/F control.

The method determines a load-based q-axis current and uses it to establish an adjusted q-axis reference current. It then calculates d- and q-axis reference voltages, converts them into α- and β-axis reference voltages using a reference rotor position, and commands an inverter accordingly. During operation, the reference rotor angular frequency increases while the d-axis reference current remains zero and the q-axis reference current stays constant. An injection voltage signal is added to the d-axis reference voltage, and the resulting sum is used to determine the α- and β-axis voltages.

Career Highlights

Grossbichler’s listed company affiliations include Magna Powertrain GmbH & Co. KG and Magna Automotive Europe GmbH. His patent reflects work on motor-drive control and the operation of permanent magnet synchronous machines.

Collaborations

His listed coworkers include Ying Zuo and Lakshmi Varaha Iyer. These names indicate professional connections associated with his work, though the available information does not specify their roles in the patent.

Conclusion

Martin Grossbichler’s patent focuses on improving I/F control for permanent magnet synchronous machines by using injected signals and current-reference adjustments to support motor-drive operation.