RESEARCH ARTICLE


A Small-Scale CAN-Based PM BLDC Motor Control for Automotive Accessory Electrification and Electric Traction



Qunfang Liao1, Y. Gene Liao*, 2, Chih-Ping Yeh2
1 Panasonic Automotive Systems, Peachtree City, Georgia, USA
2 Wayne State University, Detroit, Michigan, USA


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Creative Commons License
© 2009 Liaoet al;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Division of Engineering Technology, Wayne State University, Detroit, Michigan 48202, USA; E-mail: liao@eng.wayne.edu


Abstract

This paper presents the development of an experimental platform to test a real-time controller for a small Permanent Magnetic Brushless Direct Current (PM BLDC) motor using a Controller Area Network (CAN) communication bus. The CAN communication bus transmits and receives information between modules to control the speed, acceleration/deceleration, and rotational direction of the motor. The design consists of five major hardwares: single chip microcontroller, three module boards, PM BLDC motor, logic-input quad driver, and a power logic level gate driver. Microcontroller software is developed to perform eight major functions: controller initialization, service interrupt generation, switch, display, power converter, CAN communication, pulse width modulation control, and actual motor speed measurement. The motivation of this work is to acquire a better understanding of the PM BLDC motor control and CAN system in a laboratory setting. This work is important because electric drivetrain, accessory electrification, and the CAN communication system are key elements in electric and hybrid electric vehicles.

Keywords: Automotive accessory electrification, CAN, Electric drivetrain, Motor control, PM BLDC motor, Traction motor.