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Active Yaw Control of a Vehicle using a Fuzzy Logic Algorithm
Technical Paper
2012-01-0229
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Yaw rate of a vehicle is highly influenced by the lateral forces generated at the tire contact patch to attain the desired lateral acceleration, and/or by external disturbances resulting from factors such as crosswinds, flat tire or, split-μ braking. The presence of the latter and the insufficiency of the former may lead to undesired yaw motion of a vehicle. This paper proposes a steer-by-wire system based on fuzzy logic as yaw-stability controller for a four-wheeled road vehicle with active front steering. The dynamics governing the yaw behavior of the vehicle has been modeled in MATLAB/Simulink. The fuzzy controller receives the yaw rate error of the vehicle and the steering signal given by the driver as inputs and generates an additional steering angle as output which provides the corrective yaw moment. The results of simulations with various drive input signals show that the yaw stability controller using fuzzy logic proposed in the current study has a good performance in situations involving unexpected yaw motion. The yaw rate errors of a vehicle having the proposed controller are notably smaller than an uncontrolled vehicle's, and the vehicle having the yaw stability controller recovers lateral distance and desired yaw rate more quickly than the uncontrolled vehicle.
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Citation
Ghosh, S., Deb, A., Mahala, M., Tanbakuchi, M. et al., "Active Yaw Control of a Vehicle using a Fuzzy Logic Algorithm," SAE Technical Paper 2012-01-0229, 2012, https://doi.org/10.4271/2012-01-0229.Also In
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