Power Matching and Control Strategy of Plug-in Series Hybrid Electric Car

Paper #:
  • 2010-01-2195

Published:
  • 2010-10-25
Citation:
Sun, Y., Li, X., Deng, J., Hu, Z. et al., "Power Matching and Control Strategy of Plug-in Series Hybrid Electric Car," SAE Technical Paper 2010-01-2195, 2010, https://doi.org/10.4271/2010-01-2195.
Pages:
11
Abstract:
In this paper, based on the plug-in series hybrid electric vehicle development project, the vehicle technology solutions and the match of power system parameters were analyzed. The vehicle control strategies were identified and optimized according to plug-in hybrid vehicle features. The plug-in series hybrid, rule-based logic threshold switching control strategy, charge depleting (CD) mode and charge-sustaining (CS) mode are chosen according to the key factors, such as the environment, performance requirements, technical requirements and cost. And then the structure and model of vehicle control strategy were established to carry out vehicle energy management and power system control.The parameter selection, electric drive system matching, energy storage system design based on the requirement of vehicle performance, system architecture and control strategy are presented. The parameter matching of the auxiliary power unit is also carried out by the method multi-objective optimization and power balancing under the driving cycle for light duty vehicle, meanwhile the optimal engine operation point is determined.The results show that parameters designed for the powertrain system are feasible. With the capability of directly engine start-stop and brake energy feedback, the designed control strategy helps to rationally and effectively allocate the energy flow among the engine, motor and battery under various vehicle operating conditions. The designed vehicle meets the desired requirements well in accordance with the CD mode and CS mode.
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2010-10-25