Online learning predictive power coordinated control strategy for off-road hybrid electric vehicles considering the dynamic response of engine generator set

•An online learning predictive power coordinated control strategy is proposed for off-road HEV.•Online sequential extreme learning machine is firstly used for short-term power prediction.•Predictive adaptive equivalent consumption minimization strategy is designed.•Coordinated control is presented to guarantee adequate electric power output.•The control performance is validated in simulation and hardware-in-loop test bench.