Electric buses are now used in our cities across the world, although they only represent a small portion of those on our roads today. Clearly, there must be a number of reasons that bus operators should shift to electric vehicles, let’s look at why they are important.
Issues of air quality, carbon reduction and sustainability of fuel supplies have led to government support and incentives for operators to adopt fuel efficient and low emission green buses. However, there are still barriers for bus operators to adopt electric buses including their high cost and concerns around their short range in electric mode and reliability.
The key to increased adoption of electric buses including hybrid and full electric vehicle types (i.e. hybrid electric-HEV, battery electric-BEV and plug-in hybrid-PHEV) is to reduce the barriers. Common barriers relate to performance (both range and efficiency), cost reduction and cost recovery (re-sale) of used batteries.
Public perception of green buses is positive and leads to greater use compared to conventional buses. Bus operators who have branded their hybrid buses as green and environmentally friendly have reported positive trends in terms of passenger numbers.
Battery Management Systems (BMS) in electric vehicles (EVs) have evolved from small battery BMS’s found in products such as laptop computers but are not really optimised for the needs of EVs. While management of batteries is critical to ensure the batteries are not damaged and that they are operated safely, traditional BMS do not address issues of energy performance optimisation, weight and complexity minimisation, and reliability.
Dukosi are helping to accelerate this shift towards electric buses by reducing barriers to adoption using EVoIC (electric vehicle battery optimisation technology). The extent to which we can contribute, will be measured through trials later this year.
We will soon have more to report once our trials are up and running.