Design and Experimental Demonstration of a Seamless Automated Manual Transmission using an Eddy Current Torque Bypass Clutch for Electric and Hybrid Vehicles

2016 ◽  
Vol 5 (1) ◽  
pp. 13-22 ◽  
Author(s):  
Marc-Olivier Lacerte ◽  
Gabriel Pouliot ◽  
Jean-Sébastien Plante ◽  
Philippe Micheau
Keyword(s):  
Eddy Current ◽  
Hybrid Vehicles ◽  
Manual Transmission ◽  
Experimental Demonstration ◽  
Automated Manual Transmission

scholarly journals Design of an Electric Motor Transmission System Without Friction Synchronization

2019 ◽  
Author(s):  
Abdulmohsen Alowayed ◽  
Diarny Fernandes ◽  
Eric Jeunehomme ◽  
Siyang Liu ◽  
Zhishen Wang ◽  
...  
Keyword(s):  
High Performance ◽  
Transmission System ◽  
Hybrid Vehicles ◽  
Manual Transmission ◽  
Position Sensing ◽  
Position Errors ◽  
Sensing Technology ◽  
Transmission Design ◽  
Automated Manual Transmission ◽  
Smooth Transitions

Abstract This paper investigates the design of a new transmission system without a friction synchronizer for high-performance hybrid vehicles. Manual and automated manual transmission systems traditionally use friction synchronizers to facilitate smooth transitions during a gearshift, ensuring speed matching and proper engagement of the gears. Active position sensing technology for dogteeth is being developed, along with the potential of speed matching using electric motors, eliminating the need for the friction synchronizer. However, in removing these friction synchronizer components, significant shock could be introduced to the transmission system with speed or position errors during a shift. This paper proposes a solution through a gear system that utilizes a face mesh design, torsional springs, and alternating teeth height. A prototype of this design was created and successfully tested as a proof of concept for a transmission system, which has the potential to improve hybrid, automated manual transmission design.

Starting Quality Assessment and Optimization for Automated Manual Transmission

2012 ◽  
Author(s):  
Yulong Lei ◽  
Hongbo Liu ◽  
Jun Qiu ◽  
Jianguo Zhang ◽  
Youde Li
Keyword(s):  
Quality Assessment ◽  
Manual Transmission ◽  
Automated Manual Transmission

scholarly journals Integrated Prognostics Observer for Condition Monitoring of an Automated Manual Transmission Dry Clutch System

2020 ◽  
Vol 8 (2) ◽  
Author(s):  
Sivakumar Ramalingam ◽  
Hanumath VV Prasad ◽  
Srinivasa Prakash Regalla
Keyword(s):  
Real Time ◽  
Condition Monitoring ◽  
Closed Loop ◽  
Manual Transmission ◽  
The Real ◽  
Clutch System ◽  
Loop Feedback ◽  
Automated Manual Transmission ◽  
Closed Loop Feedback ◽  
Dry Clutch

The closed loop feedback control system of an Automated Manual Transmission (AMT) electro-pneumatic clutch actuator is used for intelligent real time condition monitoring, enhanced diagnostics and prognostic health management of the dry clutch system, by integrating with the existing gearbox prognostics observer. The real-time sensor data of the clutch actuator piston position is analyzed for monitoring the condition of the clutch system. Original parameters of the new clutch are stored in the Electrically Erasable Programmable Read-only Memory (EEPROM) of the AMT controller and the real-time data is used by the observer for assessing the degradation/wear of the frictional clutch parts. Also, clutch slip during torque transmission is monitored, using the engine speed and the gearbox input shaft speed from Controller Area Network (CAN). Condition monitoring of clutch system provides enhanced prognostic functionality for AMT system which ensures consistent clutch performance, gear shift quality and timely warning for recalibration, repair and/or replacement of the critical wear and tear parts. Also, systematic analysis of the monitored data provides an accurate diagnosis of a developing fault. Thus, with the advanced control systems in place for AMT, a closed loop feedback based condition monitoring system is modelled for improved diagnostics and prognostics of AMT clutch system.

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