Beijing Institute of Technology

Baotou Sansi Technology Development Co., Ltd.

Shaoping Lv

Weida Wang

Changle Xiang

Hui Liu

Chao Yang

Yue Ma

Lijin Han

Lili Xu

Donghao Zhang

The present invention discloses a method for switching modes of an electromechanical transmission system which includes a clutch CLa motor A, a clutch CLa brake Ba motor B and three planet rows KKand KThe electromechanical transmission system according to the present invention achieves two different structural modes of EVT1 and EVT2 by changing states of the clutch CLand the brake BThe EVT1 mode is mainly a system running state at a low vehicle speed under a high driving torque demand, and the EVT2 mode is mainly a system driving state at a high vehicle speed under a low driving torque demand. Mode switching without speed difference and power interruption can be achieved by switching vehicle speed selection and reasonable adjustment of engine and motor torque.

Method for switching modes of electromechanical transmission system

The present invention discloses a real-time optimization control method for an electro-mechanical transmission system, and relates to the field of electro-mechanical transmission technologies. The method includes the following steps: (S) starting; (S) state observation: a current operating state of each element of the electro-mechanical transmission system is obtained through state observation; (S) dynamic prediction: a feasible operating range of each element of the electro-mechanical transmission system is obtained through dynamic prediction; (S) optimal decision: an optimal control command of each element in the optimal decision is formulated and executed; (S) feedback correction: feedback correction is performed on control amounts of a motor and an engine of the electro-mechanical transmission system by using state deviations; and (S) determining whether feedback correction meets a requirement, and if feedback correction meets the requirement, ending the process, or if feedback correction does not meet the requirement, repeating (S).

Real-time optimization control method for electro-mechanical transmission system

Growing community of inventors

Inner Mongolia, China

Shaoping Lv