Optimiranje upravljačkih varijabli hibridnog električnog vozila serijsko-paralelne konfiguracije korištenjem Pontrjaginovog principa minimuma

master's thesis

• Title (english): Pontryagin's Minimum Principle-based control variable optimisation of series-parallel hybrid electric vehicle
• Author: Matija Miković
• Mentor: Branimir Škugor (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2023-07-20, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Production Mechanical Engineering

Abstract

Hibridna električna vozila (HEV) sadrže dva ili više izvora energije koji se mogu istovremeno koristiti kako bi se zadovoljili zahtjevi vozača u pogledu željene brzine vozila i okretnog momenta na kotačima. Zbog povećane kompleksnosti pogona, potrebno je pametno usmjeravati tokove snage kako bi se iskoristio njihov puni potencijal i u konačnici smanjila ukupna potrošnja goriva. Stoga je u ovom radu predstavljena metoda optimiranja upravljačkih varijabli HEV pogona zasnovana na teoriji optimalnog upravljanja i Pontryaginovom principu minimuma (PMP). U svrhu demonstracije predstavljene PMP metode iskorišten je postojeći kvazi-statički model HEV pogona putničkog vozila, te je temeljem simulacijskih rezultata provedena usporedna analiza spram algoritma dinamičkog programiranja (DP) koji za dani nelinearni optimizacijski problem garantira globalno optimalno rješenje te upravljačke strategije zasnovane na pravilima (eng. Rule Based, RB) i trenutnom optimiranju (eng. Equivalent Consumption Minimization Strategy, ECMS; RB+ECMS).

Abstract (english)

Hybrid electric vehicles (HEV) contain two or more energy sources which can be used simultaneously in order to meet the driver's demands in terms of desired vehicle speed and wheel torque. Due to increased powertrain complexity, it is necessary to manage the available power flows wisely in order to use their full potential and ultimately reduce total fuel consumption. Therefore, a control variable optimisation method of a hybrid electric vehicle powertain based on the theory of optimal control and Potryagins minimum principle (PMP) has been presented. In order to demonstrate the presented PMP method, an existing quasi-static HEV powertrain model of a passenger vehicle was used and a simulation results based comparative analysis of PMP method, dynamic programing (DP) algorithm which for a given non-linear optimisation problem guarantees globally optimal solution, and a rule-based (RB) control strategy with instantaneous optimization of equivalent fuel consumption (ECMS; RB+ECMS) was conducted.

• Keywords: hibridna električna vozila; optimiranje; Potryaginov princip minimuma; potrošnja goriva; stanje napunjenosti baterije
• Keywords (english): hybrid electric vehicles; optimization; Pontryagin's minimum principle; fuel consumption; batery state of charge
• Language: croatian
• URN:NBN: urn:nbn:hr:235:876281
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-07-14 11:00:38