Abstract

With most countries paying attention to the environment protection, hybrid electric vehicles have become a focus of automobile research and development due to the characteristics of energy saving and low emission. Power follower control strategy &#x0028 PFCS &#x0029 and DC-link voltage control strategy are two sorts of control strategies for series hybrid electric vehicles &#x0028 HEVs &#x0029. Combining those two control strategies is a new idea for control strategy of series hybrid electric vehicles. By tuning essential parameters which are the defined constants under DClink voltage control and under PFCS, the points of minimum mass of equivalent fuel consumption &#x0028 EFC &#x0029 corresponding to a series of variables are marked for worldwide harmonized light vehicles test procedure &#x0028 WLTP &#x0029. The fuel economy of series HEVs with the combination control schemes performs better compared with individual control scheme. The results show the effects of the combination control schemes for series HEVs driving in an urban environment.

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