Abstract

The driving force of an automobile depends ultimately upon the relationship between the tire and road surface. Therefore, traction control which prevents tire slip is becoming an impotrant issue from the point of view of driving performance and the stability of automobiles. Reported here is the traction control method using fuzzy control theory. Fuzzy control is "rule governed", and is said to be suitable for strong nonlinear objects such as this. Another special feature of this traction control is the use of the acceleration signal of the automobile, and this optimizes the engine performance even under the conditions of different slip characteristics. The investigation was carried out by experiment as well as by simulation. In the experiment, an electrical motor scooter on a chassis dynamometer was used instead of an actual automobile and road. Relatively good results were obtained.

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