The fuel efficiency of the hybrid electric vehicle (HEV) highly relies on the engine efficiency. Thispaper proposes a particular powertrain configuration on a small hybrid electric racing car wherethe engine is only allowed to operate withpeak efficiency. An onlinebinarycontroller, accordingly, is developedbased on dynamic programming (DP)to control the engine on/off status and the torques from the electric motors (EMs) to ensure the HEV can successfully complete the drive mission with minimal fuel consumption.For comparison, the paper also develops anoptimal powertrain controller of the same HEV with the normal usage ofthe engine, i.e., the engine operates at any feasible point of the 2Dfuel efficiency map. The simulation results show that this binary controller can improveroughly13% on fuel efficiency compared with the general engine case. ; QC 20200220 ; Optimal Integration of Combustion Engines and Electric Motors for HEVs
A Binary Controller to Ensure Engine Peak Efficiency for a Parallel Hybrid Electric Car
2019-01-01
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
DDC: | 629 |