GRA
Posts: 9525
Joined: Mon Sep 19, 2011 1:49 pm
Location: East side of San Francisco Bay

GCC: ViriCiti and Fraunhofer report on prolonging battery life of electric buses and trucks

Mon May 07, 2018 6:53 pm

http://www.greencarcongress.com/2018/05/20180507-viriciti.html

The Fraunhofer institute for Transportation and Infrastructure IVI, expert in the field of lithium-ion batteries, and real-time electric vehicle data specialist ViriCiti have been collaborating to prolong battery life and lower total cost of ownership of electric buses and trucks. Over the past months, they researched how battery life can be extended by altering specific aspects of operations. The outcome is a battery stress report that gives operation-specific advice on how to prolong the battery life. It is now available for ViriCiti’s international customers. . . .

To prevent early degradation, the report focuses on power, temperature, Depth-of-Discharge (DOD) and State of Charge (SOC). It also provides a detailed analysis of the battery usage over the evaluated period of time as well as what factors have a negative impact on the life cycle.

The report describes how adapting the charging and operational regime—e.g. interchanging buses on steep roads—will reduce battery stress and increase health. By maximizing battery life, electric operations become cheaper and electric buses and trucks become competitive with diesel vehicles. . . .
Guy [I have lots of experience designing/selling off-grid AE systems, some using EVs but don't own one. Local trips are by foot, bike and/or rapid transit].

The 'best' is the enemy of 'good enough'. Copper shot, not Silver bullets.

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