Optimization design paves way for efficient freight transport

Thursday, November 8, 2018

Toheed Ghandriz, a doctoral student at Chalmers University of Technology, is focused on finding the optimal distribution of propulsion over axles in long combination vehicles. The task is also to designing such a propulsion, including conceptual control design. The result: More cost- and energy-efficient transports.

Toheed, tell us more about your methods?

“The idea is that freight vehicles can be designed more cost- and energy-efficiently given operational domains and transportation use-cases. For this purpose, optimization-based methods are applied to deliver customized fleet vehicles with tailored propulsion components that fit best given transportation missions and operational environment.

“Optimization-based design of vehicle components have showed to be more effective considering optimization of transportation mission infrastructure simultaneously, including charging stations, routing and fleet composition and size, especially in case of electrified propulsion.”

What are the greatest challenges in this area?

“It is to evaluate the cost function sufficiently. Accurate models of vehicle dynamics and transportation environment are needed.  The greatest challenge lies in parametrizing these models in order to reflect the real-world problems and transportation use-cases.”

What are your results this far?

“In my licentiate thesis, it was observed that by implementing integrated vehicle hardware-transportation optimization, total cost of ownership can be reduced up to 35%, in case of battery electric heavy vehicles.”

What can be the impact of the applications?

“Optimization-based design helps agile market adaption, profitable businesses specially in case of electrification and automation, as well as green transport; provided that a proper description of the use-case and system boundaries is available through clear communication between stakeholders.”

What are the long–term benefits?

“It will give a more cost- and energy-efficient freight transport and eventually green transportation.”

Where do you see the need for further research?

“The future research includes studying the possibility and inclusion of tactical and operational levels of decision making in integrated vehicle hardware-transportation optimization. Tactical and operational decisions refer to actions taken during dynamic driving task with the time span in minutes and seconds, respectively. These actions contribute to energy consumption as well as vehicle maneuvering.”

Read the licentiate thesis

/ Daniel Karlsson