Position Sensorless Control of a Motor-Pump-Unit for an Active Suspension in Automotive Applications

Conference: PCIM Conference 2025 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/06/2025 - 05/08/2025 at Nürnberg, Germany

doi:10.30420/566541065

Proceedings: PCIM Conference 2025

Pages: Language: englishTyp: PDF

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Authors:
Lang, Andreas; Spiessberger, Richard; Schroedl, Manfred

Abstract:
The force of a passive damper is strictly dependent on its speed. Therefore, an active suspension is presented in which the force and the speed of the damper are completely decoupled. Furthermore, a close look on its Motor-Pump-Unit is taken. A control schematic for the system is proposed, and the control structure of the permanent magnet synchronous motor is examined from the perspective of the position sensorless control. A simulation is compared to measurements, and measurements with a hydraulic test bench are presented.