Electric and hybrid propulsion systems have been developed for ground vehicles, driven by the motivation of decreasing the particle emissions from the exhaust of conventional propulsion systems. However, the more environmentally friendly fully or hybrid electric vehicles are expected to have increased non-exhaust pollution related sources compared to a conventional vehicle. A fact that could potentially cancel the benefits of removing the exhaust, due to their significantly increased mass. One of the main sources of non-exhaust pollution is the tyre wear, and can jeopardise the benefits of electrification in ground transport systems. Hence, a reformulation is required, and this is where this works lies. Inner (tyre structure and shape) and external (suspension configuration, speed, road surface, etc.) factors are mainly affecting wear, and in this work, the emphasis is given on suspension systems and more specifically on the ability of semi-active suspensions to decrease tyre wear on a hybrid vehicle. In this direction, two demo vehicles provided by IPG CARMAKER 8.0, the Demo: V olvo_X C90_T8H ybrid and Demo_Volvo_XC90_T6AWD, are considered intially to compare their tyre wear during cornering over a class C road. Then, the Demo_Volvo_XC90_T8Hybrid is employed with both comfort (SH-2, SH-ADD-2 and ADD) and road holding (PDD, SH-PDD, and GH-2) oriented semi-active suspensions to investigate the induced levels of wear. Additionally, the suspension systems are also compared with regards to other vehicle performance aspects, i.e. comfort and stability.

Litiumjonbatterier (Li-jon) används i olika applikationer och är ett bra alternativ förfordonsapplikationer. Den effektiva hanteringen av litiumjonbatterier i elbilar har en viktigroll för fordonens prestanda och räckvidd. Man kan nå bra prestanda och räckviddgenom att använda bra batterimodeller i batteriets övervakningssystem (BMS). Därförspelar dessa batterimodeller en viktig roll i utvecklingen av elbilar. Fysikbaseradebatterimodeller används för design, reglering eller för att prediktera beteendet hos batteriet,vilket kräver mycket information om material samt dess reaktion och andra beskaffenheter.Modellparametrisering, dvs. att införskaffa modellparametrar från olika experiment (genom attanpassa modell till experimentella data) kan vara utmanande beroende på modellkomplexitetoch typen samt kvalitén på experimentell data. Baserat på idén om parametersensitivitet kan data om ström och spänning väljas så att de teoretiskt har mer sensitivitet för engiven modellparameter som är av intresse att extrahera. I detta examensarbete testas ochjämförs olika metoder för att extrahera modellparametrar för en Nickelmangankobolt (NMC)batterielektrod. Mer specifikt, modellparametrisering genom optimala experiment baseradepå genomförd parametersesitivitetsanalys jämförts med 1C urladdningstest och låg nivåpulstest. Jämförande av metoderna visar goda resultat för OED metoden men flera parametrarmåste fortsatt utvärderas gällande laddningstatusberoenden (SOC).

Sustainability has become a very important research area in transportation where demands and associated environmental impacts have been increasing. An introductory exploration is established here, where transport efficiency is studied in two partial measures, mass efficiency and volume efficiency. An optimisation problem is then formulated here to find an acceptable design config- uration that merely satisfies the transport constraints and maximising transport efficiency. It is observed that there are trade-offs between environmental impacts in terms of energy requirement and the optimised design configuration.