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Volume 7 Issue 4 - November 2016

  • 1. Design and implementation of an engine control strategy during gear shifting process of automated manual transmission (amt) for improvement of shift quality and fuel efficiency

    Authors : Anjus George

    Pages : 330-343

    DOI : http://dx.doi.org/10.21172/1.74.046

    Keywords : Virtual torsion sensor, Kalman filter, PID control, Bang bang control

    Abstract :

    Automated Manual Transmission (AMT) combines comfort of use with a reduction in energy consumption, with production costs that are consequently lower compared to traditional automatic transmissions. AMT is based on an electronic control unit and a mechanical system that supervise the use of the clutch and gear shifting, allowing the driver to change gear without using the clutch, either sequentially or fully automatically. This project aims to improve the shift quality and reduce fuel consumption by means of control of engine speed and torque during shift process. Before shifting to neutral gear the engine torque is reduced to a minimum level. The position of the shift motor is controlled effectively for shift off and shift on process. Before changing to new gear position the engine speed is controlled as per shift request i.e., upshift or downshift, after that gear engagement is performed and the engine torque is restored as per driver’s request. A virtual torsion sensor is designed using Kalman filter for estimating the torque transmitted through the drive shaft and a PID controller is designed to control this torque to a minimum level. The position of the gear actuator is also driven to reference position using PID mechanism. For speed control the advantage of both time-optimal control such as bang bang control and PID control are utilized.

    Citing this Journal Article :

    Anjus George, "Design and implementation of an engine control strategy during gear shifting process of automated manual transmission (amt) for improvement of shift quality and fuel efficiency", Volume 7 Issue 4 - November 2016, 330-343

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