Automotive Electrical System

This example shows a simplified dynamic model of an automotive electrical system. The model contains electrical, mechanical, and thermal systems, and is able to simulate the effect of engine starting on the electrical network.

Model

Exterior Lights Subsystem

Indicators Subsystem

Starter Solenoid Subsystem

Simulation Results from Simscape Logging

The plot below shows a startup sequence for an automotive electrical network. The starter motor is turned on, which draws current from the battery in order to start the engine. As lights and other electrical loads are turned on and off, the current draw from the battery varies.

Results from Real-Time Simulation

This example has been tested on a Speedgoat Performance real-time target machine with an Intel® 3.5 GHz i7 multi-core CPU. This model can run in real time with a step size of 400 microseconds.