Verification work using plant models with MATLAB®

• #Model-Based Development(MBD)
• #Passenger Car Design and Development
• #Industry-Academia Collaborations
• #Automobiles
• #No Evaluation Knowledge
• #Business Streamlining
• #Quality Enhancement
• #No Evaluation Results

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What led to the introduction of the service?

For the development of a new in-vehicle ECU, the client wanted to conduct verification tests in a simulated environment without using the actual device. Among the methods of Model-Based Development (MBD), they were interested in "plant models," which meant creating models of actual machines, and looked into whether it would be possible to create highly accurate plant models.

Issues before introduction

The client had no experience in developing a plant model before and had no actual vehicle measurement data, which would be required for creating a plant model, so they looked for a company that could handle starting from the data measurement stage.

Examples of use after introduction

We created a plant model using MATLAB®, and improved the model accuracy by reflecting the measurement results our experiment department collected from the engine bench and actual vehicle. First, we created a plant model of the transmission hydraulics and used it to verify the hydraulic pressure and flow rate. In addition to the individual engine and transmission plant models, we successfully created a simple plant model of a single vehicle to check basic driving and other operations.

What is the plant model?
A plant model is a "physical model that is the target of a simulation" used in system design and development. By using a plant model, it becomes possible to re-input into the ECU the output signals from the ECU that reflects the phenomenon in the actual machine. This makes it possible to check operations equivalent of the actual machine on the bench.

Effectiveness and achieved results

We took on development at each stage, from measurement of actual vehicle data to plant model creation, and greatly reduced the client’s development cost.

Our advantages

We have in-house Design Departments and Experimentation Departments, and we can improve the accuracy of our models by reflecting the results of measurements taken on the engine bench and on actual vehicles.