Evaluation of a Back-up Range Extender and Other Heavy-Duty BEV-Supporting Systems

Electric powertrains in terms of battery electric vehicles (BEV) are considered to be very interesting for heavy truck transportations. The challenge is the need large onboard energy and batteries. Long-term fuel cells (FCs) an support system heavy-duty BEV, but short term, a range extender (REX) also interesting. A BEV with 970 kWh batteries installed can handle 27% all possible missions Scania fleet considering daily recharging. back-up (BUREX) expand this figure 55% utilized 20 days per year. If customer has few energy-demanding use cases each year does not want pay needed, BUREX may especially good option. reduces life-cycle CO2 emissions, irrespective generation mix grid supplying electricity used vehicle manufacturing charging. reuse existing components powertrain enables installation 10% larger pack while being 80% less costly. adds redundancy concept recharging infrastructure improves, rural places. These results indicate that powerful short-term solution could enable greater HD FC trucks charging technologies gradually become more mature.