This paper presents four novel parallel hybrid transmissions based on the structures of three and four-speed automatic transmissions using seven-link Ravigneaux gear train. The proposed designs have some advantages while using conventional automatic transmission structures such as simple mechanical layout, compact design, and flexible operation. They are generally able to perform five primary operation modes; electric motor mode, power mode, power split mode, engine mode, and regenerative braking mode. By using an electronic power control unit, the switching between operation modes is controlled based on vehicle operating conditions. They can either operate as parallel hybrid transmissions or conventional three or four-speed automatic transmissions in the engine mode. One of the new hybrid transmissions is presented as a numerical example to illustrate the working principle, kinematics, static torque and power flow of each operation mode. Furthermore, a feasible clutching logic for control strategy is developed. And, the results show that the proposed design is feasible.
|貢獻的翻譯標題||On the Design of Novel Parallel Hybrid Transmissions Based on a Seven-Link Ravigneaux Gear Train|
|頁（從 - 到）||201-209|
|期刊||Journal of the Chinese Society of Mechanical Engineers, Transactions of the Chinese Institute of Engineers, Series C/Chung-Kuo Chi Hsueh Kung Ch'eng Hsuebo Pao|
|出版狀態||Published - 2019 六月 1|
All Science Journal Classification (ASJC) codes
- Mechanical Engineering