One Proposal of Traction Control in Electrical Type 4WD

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  • Yamanaka Kenji
    Dept. of Electrical and electronic Engineering Institute of Technology and Science, Graduate School of Tokushima University.
  • Tsutsui Kenta
    Tokushima University

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Other Title
  • 電気式4WD におけるトラクションコントロールの一提案
  • デンキシキ 4WD ニ オケル トラクションコントロール ノ イチ テイアン

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Abstract

The hybrid electric vehicle has been advanced for environmental problems. It is realized an improvement in fuel efficiency by balancing both the characteristics of an electric motor and an internal combustion engine. In our laboratory, the hybrid electric vehicle has been remodeled from a commercial engine vehicle. Authors are also advancing research that focuses on improving the exercise performance by using engines with two electric motors. The hybrid electric vehicle is a four-wheel-drive vehicle (4WD). Authors are aiming to achieve the method of traction control of 4WD. In order to suppress slip at the time of idling wheel, it is controlled the rotation speed of wheels by using both the mechanical mechanism of the center differential gear and characteristic of the electric motor (generator). The characteristic of this system suppress the rotation of the front wheel by using a generator as an electric motor when the front wheel slipping. Then, this generator is attached to the rear wheel’s output side of the transfer. Slip ratio is detected by using the rotational speed difference between the front wheels and rear wheels. In this paper, authors introduce the principle of the proposed methods and remodeling manufacturing process that was performed in order to achieve the traction control. In addition, it is reported the experiment results.

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