Special issue on on-board optimization strategy design methods for connected hybrid electric vehicles

As a trend in the innovation of automotive engineering,con-nectivity provides new opportunities and challenging issues for vehicular powertrain control due to big potential in the use of the connected information for improving energy effi-ciency and reducing CO2 emission.In real world driving situation,a bottleneck for achieving optimal energy effi-ciency via control of the power sources in the powertrain is the uncertainty in power demand,since the power demand is delivered by the driver according to the driving environment which is always with stochasticity and un-detectable event in the environment.