Optimirianje upravljačkih varijabli hibridnog električnog autobusa za slučaj značajnih promjena nagiba ceste

master's thesis

• Title (english): Optimisation of hybrid electric bus control variables for the case of significant road slope variations
• Author: Hrvoje Košćak
• Mentor: Joško Deur (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2017-05-18, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; General Mechanical Engineering (Construction)

Abstract

Cilj ovog rada bio je prikazati utjecaj nagiba ceste na optimalne upravljačke trajektorije pogona hibridnog električnog vozila. Razvijen je model pogona hibridnog električnog vozila (HEV) te su opisani vozni ciklusi zajedno s pripadajućim nagibima ceste za koje se provodilo optimiranje upravljačkih varijabli. Pri tom je za optimiranje korišten algoritam dinamičkog programiranja (DP) koji općenito garantira globalno optimalne rezultate za danu rezoluciju varijabli stanja te upravljačkih varijabli. Potom su dani usporedni rezultati optimiranja u vidu trajektorija stanja napunjenosti (SoC-a) baterije, radnih točaka komponenti HEV pogona, te potrošnje goriva za slučaj kad je nagib ceste uključen u optimiranje te za slučaj kad nije. Naposljetku je dana preporuka za sintezu realistične upravljačke strategije HEV pogona u prisustvu nagiba ceste na temelju rezultata DP optimiranja.

Abstract (english)

The aim of this paper was to show the impact of the road slope on optimal control trajectories of the hybrid electric vehicle (HEV) drive. A model of the hybrid electric drive was developed and driving cycles with corresponding road slopes for which optimization of control variables was conducted are given. Dynamic programming (DP) – based algorithm which ensures globally optimal results for given resolution of state variables and control variables was used. Afterwards, the comparison between the optimization results for scenarios when road slope is and is not included is given, with emphasis on battery state-of-charge (SoC) trajectory, operating points of HEV drive components and fuel consumption. In the end, recommendation for realistic control strategy synthesis of HEV drive in presence of road slope based on DP optimization results is given.

• Keywords: hibridni električni autobus; vozni ciklusi; nagib ceste; optimiranje; dinamičko programiranje; upravljačke varijable; stanje napunjenosti; baterija; potrošnja goriva
• Keywords (english): hybrid electric bus; driving cycles; road slope; optimization; dynamic programming; control variables; state of charge; battery; fuel consumption
• Language: croatian
• URN:NBN: urn:nbn:hr:235:937845
• 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: 2019-05-22 19:34:28