Hermann Fehrenbach

Title: Hermann Fehrenbach: Inventor in Engine Measurement and Combustion Analysis.

Introduction

Hermann Fehrenbach is an inventor based in Rulzheim, Germany, whose patent work addresses engine torque estimation and combustion-chamber pressure analysis. His listed inventions relate to methods for deriving useful engine measurements from rotational behavior and modeled torque.

Latest Patents

Fehrenbach’s two listed patents are “Device and Method for Estimation of an Engine Torque” and “Method and Device for Estimation of Combustion Chamber Pressure.”

“Device and Method for Estimation of an Engine Torque” describes estimating alternating torque or mean indicated pressure from engine angular velocity. The method includes charge-pressure compensation to improve the result and may also account for sensor-wheel errors and inertial forces. A characteristic diagram can be used to derive mean indicated pressure from the estimated alternating torque.

“Method and Device for Estimation of Combustion Chamber Pressure” concerns obtaining information about cylinder pressure to support optimization of combustion in internal combustion engines. The engine is represented using model parameters, and a modeled alternating torque is compared with the actual alternating torque. The parameters are then adjusted based on the comparison, allowing the model to produce more realistic combustion-chamber pressure values.

Career Highlights

Fehrenbach’s listed patent work is associated with Audi AG. The inventions focus on engine-management measurements and modeling techniques that can help characterize torque and combustion behavior.

Collaborations

Henning Rasche and Winfried Schultalbers are identified as Fehrenbach’s coworkers.

Conclusion

Hermann Fehrenbach’s two listed patents address complementary challenges in engine analysis: estimating torque from rotational data and improving combustion-chamber pressure estimates through model adjustment.