Regenerative Fuzzy Brake Blending Strategy on Benchmark Electric Vehicle: the FIAT 500e

Enhanced regenerative brake performances and increased battery reliability in modern Electric Vehicles could be allowed by a proper reduction of electric braking applications at severe operative conditions. In this paper, authors intend to develop an algorithm for the optimized coordination between Regenerative Brake System and Hydraulic Brake Plant, also known as Brake Blending strategy. Proposed solution aim at maximizing the recovered energy during braking manoeuvres while ensuring an increased battery durability, by avoiding accelerated ageing phenomena occurring at high temperatures and limit State Of Charge values of the energy storage system. The controller, based on fuzzy logic, is validated through simulation activities on a benchmark electric vehicle showing improved reliability performances and extended lifespan of the storage system.