With the rapid development of new energy vehicles, hybrid vehicles have attracted more and more attention and quickly occupy the market. In order to optimize the power architecture of hybrid electric vehicles, this paper analyzes the power architecture of series-connected hybrid electric vehicles and series-parallel hybrid electric vehicles, studies the energy transfer paths, working modes and control logic under various working conditions, and finds that there are problems such as low energy efficiency and complex architecture. Therefore, this paper optimally designs a hybrid architecture and its control logic by reducing the energy conversion path of the power architecture and taking advantage of the characteristics of planetary gear group power shunt, etc. The results show that it not only has higher energy efficiency but a simpler architecture than the series-parallel hybrid architecture, which reduce development costs.

Series hybrid electric  /  Parallel hybrid electric  /  Hybrid power architecture  /  Energy efficiency