ABSTRACT
New methods for the application of the Electronic Control Unit (ECU) of Electric Power Steering (EPS) are required to reduce work load. Yet the application is done on proving grounds and is based on subjective evaluation of steering feel performed by an experienced engineer [1]. This paper shows the Software in the Loop (SiL) procedure to parametrize the ECU by vehicle and steering model simulation. First, with the topology, consisting of the Design of Experiment (DoE) Tool AVL CAMEO, IPG CarMaker, a model of a Steering ECU and the post processing tool MXevaluation, a comparison to the Model-Based Steering ECU application on a steering test bench is done. The simulation data is used to make a (statistic) behavior model of the whole system. The loop of the automated simulation and database generation is started by AVL CAMEO which varies the ECU parameters. Afterwards CarMaker runs a simulation and MXevaluation calculates Objective Parameters. Then, with a generated behavior model and the Objective Parameters of a benchmark vehicle, the ECU parameters can be optimized. Consequently the effort on proving grounds will decrease significantly and it will be easier to implement a growing number of new functions in the ECU.
