Saft ESS Model Vehicle model Ballard Motor Drag Model Cyber Driver
The process presented here was originally developed during my master studies at McGill University. The process is demonstrated in great detail with the example of a student Formula Hybrid vehicle in my masters' thesis available here.
Note, it is now common to combine the race and powertain simulations in a real time seamless manner which vastly improves convergence of results and process cycle time. Software such as rFactorPro can be used to achieve this.
CAD Model Race Sim Model Powertrain Model Simulation Results
The details of the process easily understood from a description how each software is used.
Below is a set of images showing the internal structure of the powertrain model. Refer to the picture of the top level model above to see how they fit together.
The complete cycle of the powertain analysis involves 3 primary steps: 1) problem definition, 2) concept modeling, 3) simulation and analysis. Once a full cycle is completed, the steps can be revised as required depending on the results obtained.
This process involved driver-in-the-loop track simulation which added a 4th piece of software required to complete the process. The 4 pieces of software are:
Typical powertrain investigations would not use auto-racing simulation software since the velocity schedule is usually given by a standard or custom drive cycle.
Copyright © Albert Mathews. All rights reserved.