Beijing Institute of Technology

Baotou Sansi Technology Development Co., Ltd.

Lili Xu

Yue Ma

Weida Wang

Changle Xiang

Hui Liu

Lijin Han

Shaoping Lv

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 an electromechanical compound transmission device for a tracked vehicle. The electromechanical compound transmission device includes a front transmission mechanism, a power coupling mechanism, an independent drive mechanism, and convergent planetary gearsets arranged on both sides of the power coupling mechanism. The present invention can not only implement driving, steering, and other functions of a vehicle, but also provide sufficient electric energy for a vehicle-mounted device. In other words, a series mode can be adopted to satisfy a torque output requirement, and is mainly used for low and medium-low speed driving, as well as reverse driving and climbing steep slopes; and a series-parallel mode can also be adopted to satisfy requirements of high and medium-high speed driving, and can achieve relatively high transmission efficiency and fuel economy.

Series-hybrid electromechanical compound transmission device for tracked vehicle

Growing community of inventors

Beijing, China

Lili Xu