1. Yu Y, Zeng X, Wang Q. Validation of hybrid electric vehicle simulation software. J Syst Simul. 2009;21(2):380–4.
2. Zeng X. Study on mechanism of energy saving and method of parameter design for hybrid electric bus. Changchun: Jilin University; 2006.
3. Tong Y. Research on dynamic coordinated control of power-split hybrid electric power system. Beijing: Tsinghua University; 2004.
4. Buchwald P, Christensen H, Larsen H, Pedersen PS. Improvement of city bus fuel economy using a hydraulic hybrid propulsion system—a theoretical and experimental study. SAE Paper 790305, Warrendale, PA, USA, 1979.
5. Yu Y. Optimal design and control of power-split hybrid electric vehicle. Changchun: Jilin University; 2010.