A New Rotating Wedge Clutch Actuation System

作者：Ding, Zhao; Chen, Li; Yin, Chengliang; Yao, Jian; Lee, Chunhao; Samie, Farzad

来源：SAE 2017 International Powertrains, Fuels and Lubricants Meeting, FFL 2017, 2017-10-15 To 2017-10-19.

DOI：10.4271/2017-01-2441

• Automatic transmission
• Clutch actuation system
• Dual clutch transmission(DCT)
• Hybrid transmissions
• Mechanical advantage
• Physical structures
• Self-reinforcement
• Transmission systems

Rotating clutches play an important role in automatic transmissions (AT), dual-clutch transmissions (DCT) and hybrid transmissions. It is very important to continually improve the transmission systems in the areas such as simplifying actuator designs, reducing cost and increasing controllability. A new concept of electrical motor driven actuation using a wedge mechanism, a wedge clutch, demonstrates potential benefits. This wedge clutch has the characteristics of good mechanical advantage, self-reinforcement, and faster and more precise controllability using electrical motor. In this paper, a new rotating wedge clutch is proposed. It presents a challenge since the motor actuator has to be stationary while the clutch piston is rotating. A new mechanism to connect the motor to the wedge piston, including dual-plane bearings and two mechanical ramp linkages, is studied. The design and verification of the physical structure of the actuator are discussed in detail in the paper.

• 出版日期2017
• 单位上海交通大学