@article{ref1,
title="Matching Strategy of Electric Power Steering Assistant Characters Based on the Vehicle Inherent Road Feel",
journal="Proceedings of the Institution of Mechanical Engineers, Part D: Journal of automobile engineering",
year="2011",
author="Liu, Y. H. and Ji, X. W.",
volume="225",
number="11",
pages="1481-1491",
abstract="Matching the assistant characters of an electric power steering (EPS) system so that the vehicle achieves a high performance is one of the key technologies in EPS design. A study on the matching strategy of EPS assistant characters is conducive to obtaining a good 'vehicle performance' earlier in the design process. This paper describes a method for designing the assistant characters of an EPS system based on the vehicle's inherent 'road feel' denoted here as the steering torque gradient at a 0g or 0.1g lateral acceleration under the condition that the steering system is not a power-assisted system. With the aim of obtaining the vehicle's inherent road feel, the relations between the steering resistant torque and the vehicle's travel states are analysed on the basis of a two-wheel vehicle model with a uniform normal tyre force distribution in steady state circle cornering. It is found that the vehicle's inherent road feel decreases with increasing speed especially in the low-speed regions. The matching strategy of EPS assistant characters based on the vehicle's inherent road feel is presented and illustrated by designing the assistant characters of a sample EPS system utilized in a passenger car. It is found that the EPS system designed by this strategy can supply a good steering feel to the driver.<p /><p>Language: en</p>",
language="en",
issn="0954-4070",
doi="10.1177/0954407011408370",
url="http://dx.doi.org/10.1177/0954407011408370"
}