Intelligent electromagnetic actuated CVT system for passenger car
Intelligent electromagnetic actuated continuously variable transmission system (IEMA-CVT) is designed and developed in this study for improving the vehicle dynamic response and fuel consumption. The IEMA development is conducted by two sets of electromagnetic actuators (solenoid) located on prima...
| Main Authors: | , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2011
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/7596/ http://irep.iium.edu.my/7596/ http://irep.iium.edu.my/7596/1/IEEM-IEEE_conference__Singapore_.pdf |
| Summary: | Intelligent electromagnetic actuated continuously variable
transmission system (IEMA-CVT) is designed and developed
in this study for improving the vehicle dynamic response and
fuel consumption. The IEMA development is conducted by two sets of electromagnetic actuators (solenoid) located on primary and secondary pulley and a fuzzy logic controller. A
set of solenoids are attached to the primary and secondary
pulley to develop the attraction and repulsive forces. The
relationships between the speed ratio and electromagnetic
actuation and clamping force and output torque of the CVT
are established based on the kinematics of the EMA-CVT
system. A Fuzzy Logic Controller (FLC) is developed to
control the EMAprecisely based on the feedback of the RPM
sensor and slope sensor. The EMA-CVT performance with
controller has found 28% more than the performance of the
EMA-CVT without controller. The solenoids of the EMA were
activated by varying the current supply with the Fuzzy-
Proportional-Derivative-Integrator (FPID) to maintain the nonlinearity of the CVT in response of the vehicle traction torque demand. Result shows that the solenoid able to pull the plunger in the desired distance with supply current of 12.5 amp while push the plunger to the desired distance with 14.00 amp current supply to the windings when the vehicle is considered in 10% grad. The acceleration time of the ΒΌ scale car has been recorded as 5.5 s with the response of the traction of the car. |
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