A Model for Energy Consumption in Heavy Vehicle Braking

Paper in proceeding, 2022

A model is presented for studying the energy used by the braking system in heavy vehicles. The aim is to keep the model as simple as possible, while retaining reasonable fidelity for the problem at hand. All actuators are thus created as ideal, i.e. no losses, then simple dissipative loads are added where applicable in order to capture their effects from a vehicle systems perspective. The vehicle itself is a simple point mass with a replaceable brake system actuator and a proportional speed controller. The model results capture the energy converted by the vehicle actuators with an error of less than 5% compared to the measured data, indicating that the model is capable of estimating the energy used by the two braking system variants, as well as the drivetrain, in other heavy vehicles and driving scenarios.