An eco-driving strategy for electric vehicle based on the powertrain

Energy waste inside the powertrain of electric vehicles (EVs) due to non-optimized acceleration caused by improper control variables is not generally considered when designing EVs' optimal driving strategies. To fill this gap, study designs an EV strategy taking a holistic approach explicitly considering powertrain's internal functionalities minimize total energy consumption. Firstly, battery thermal effect introduced into powertrain-based longitudinal dynamics model, aiming improve calculation accuracy state charge (SOC). Secondly, eco-driving for three basic modes designed. Finally, feasibility verified its sensitivity SOC and environment temperature, adaptability in realistic conditions tested. Simulation results show that extremely low can drastically disturb powertrain, causing efficiency reduction up 68.78% 33.12% process, respectively. However, temperature has little on powertrain. The required distance time complete same speed-change task as NEDC are respectively reduced 17.13% 12.12%. proportion different urban suburban nearly consistent with applicability preference corresponding outcomes suggest proposed sufficiently utilize coupling effect, consumption limited degradation electromotor limitation.