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Simulation of Electrohydraulic Power Systems

Available On-Demand Until: July 12, 2019

Click HERE to find the start time at your location

Join us for this webinar to learn about simulating electrohydraulic power systems, featuring guest speaker Steven (Feng) Qi from FZB Technology. In the presentation, he will discuss a multiphysics model of the latest pump design for automotive applications from FZB's team.

Electrohydraulic power steering (EHPS) is a very fuel-efficient technology for steering systems. One of the key components is the hydraulic pump, which is powered by an electric-controlled motor, while the fluid interacts with the steering gears to add extra torque. The modeling of EHPS systems is therefore multiphysics by nature. FZB's team modeled the major components of their EHPS system, including the electronic control unit (ECU), motor, helical gear pump, mounting bracket with isolators, as well as the entire system assembly.

Steven will discuss the approach used for the thermal-mechanical analysis of FZB's EHPS design to ensure a safe operating temperature range. He will also present an electromagnetic model for the helical magnet feature to reduce ripple torque and a helical gear pump and its coupling to CFD and acoustics.

The webinar includes a live demo in the COMSOL Multiphysics® software and a Q&A session.


Temperature throughout the ECU and rotor assembly (left) and stator and rotor assembly (right). 
The multiphysics model predicts system thermal performance when an EHPS system using an electric motor is installed in a vehicle.


Steven Qi, FZB Technology

Steven (Feng) Qi currently works as a program manager and senior mechanical engineer at FZB Technology. Steven is responsible for product design development, engineering development process, design release, product launch support, and production line support. He is also the leading computer-aided engineering analyst and supervisor, specializing in CFD, structural, acoustic, electromagnetic, and thermal multiphysics analysis. Steven graduated with an MS degree in mechanical engineering from Tsinghua University, Beijing, and a PhD in materials science and engineering from the University of Michigan, Ann Arbor.

Valerio Marra, COMSOL

Valerio Marra is the marketing director at COMSOL in Burlington, MA. Previous roles include working in applications, technical support, and sales. He has been at COMSOL since 2008. Valerio received his PhD in fluid machines and energy systems engineering and his MSc in nuclear engineering, focusing on numerical methods for CFD.


Linda Bell, SAE International

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