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The EU Batteries Regulaon (EU) 2023/1542 establishes a comprehensive framework for monitoring the aging of batteries used in electric vehicles.
In the context of urban mobilities, the average lifespan of a bus is around 15 years, whereas the expected lifespan of a battery is eight yearsas a minimum. However today, public transport operators (PTOs) rely on vehicle manufacturers to determine battery health, which is often inaccessible and lacks transparency. The warranty conditions of the EV buses proposed by vehicle manufacturers to PTOs are based on the fact that the battery will still have 80% of its capacity after eight years, following vehicle manufacturers’ conditions of use.
But PTOs don’t have any means to fulfil those conditions. As a consequence, they can face sudden breakdown of service (and revenues) due to a failure of the batteries. The key project goal is to develop a solution for electric bus fleet managers to calculate battery aging through the State of Health (SOH) parameter that will lead to a better operational efficiency of the fleet and a reduction of maintenance costs.
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This project will reduce dependency of PTOs to vehicle manufacturers to access vehicle data related to battery’s state of health calculation. Consequently, this project will decrease maintenance costs of PTOs on their vehicles.
The main challenge consists in collecting the proper “in-vehicle” key technical data which will allow to calculate the State of the Health of batteries.
The expected outcome will be a web-based application to be used by PTOs which will give a real time situation of State of Health of vehicle batteries, as well as the main sources of energy consumption.
UPC - Universitat Politècnica de Catalunya
Pierre Gruyer
Pierre.gruyer@actia.fr
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