Energetic requirements of heavy duty urban transport hybrid vehicles.

Analysis on urban bus and waste collect cases in terms of use and electrifi cation degree.

Abstract

The requirements to reduce pollution from

vehicles are increasing and this is most

prominent, if possible, in urban areas. The way

followed by automotive industry to answer this

demand consists on vehicle electrifi cation. To

reach the aim of pure electric vehicles is passing

through intermediate stages of increasing levels

of electrifi cation, that impulse knowledge,

experience and development of batteries,

converters and the other electric equipment that

are in early stages of maturity than the rest.

With this view, this article presents a modeling

method that allows estimating energy

requirements of heavy duty vehicles, assuming

different driving cycles and kind of services,

with the aim of pre-sizing the electric equipment

needed for every case of electrifi cation and

range. Specifi cally urban passenger transport and

waste collection cases will be analyzed.

The aim is to have a tool that make easier the

calculation of weight, volume and cost of the

required equipment to cover specifi c operational

needs of an electric vehicle, reducing time and

cost of tests. These results allow forming a

judgment on how far is interesting going with

electrifi cation grade on a specifi c vehicle and use.