2302 A study of vehicle handling performance on snow road using tire contact pressure analysis

Non-linear system control has always been a difficult point for vehicle stabilization. To improve the vehicle handling performance, a comprehensive active-steering control method is proposed and derived. Different from traditional strategy, this new controller is based on a piecewise tyre modelling ideology combined with feedback linearization controlling method. In the linear region of wheel–terrain contact, vehicle dynamic system turns to be a linear system, an optimal control is designed for the sake of rapid response in tracking desired values. In the non-linear region, where the controlling difficulty always lies in, the tyre lateral force is described by a new polynomial formula model, which is simpler than magic formula model and more accurate than linear model. This new tyre modelling ideology ensures the feasibility of feedback linearization method in non-linear system control. To verify the proposed controller, a numerical seven-degrees-of-freedom vehicle model is built and validated by standard input simulation. Then, simulation under limit conditions, including high friction case and low friction case, are conducted and results are presented and discussed. Compared with optimal controller and free-control method, comprehensive controller has a much more desirable applicability in both cases and greatly improves the vehicle handling performance.

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Establishing Correlation between Torsional and Lateral Stiffness Parameters of BIW and Vehicle Handling Performance

SAE International Journal of Passenger Cars - Mechanical Systems ◽

10.4271/2011-01-0089 ◽

2011 ◽

Vol 4 (1) ◽

pp. 22-31 ◽

Cited By ~ 5

Author(s):

Hari Krishnan M ◽

N Sreeraj ◽

C Bhaskar ◽

G Nagaraju ◽

R Mugundaram

Keyword(s):

Lateral Stiffness ◽

Vehicle Handling ◽

Handling Performance

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Multi-Objective Optimization of Vehicle Handling Performance Considering Driver’s Subjective Rating

The Proceedings of the Transportation and Logistics Conference ◽

10.1299/jsmetld.2016.25.3103 ◽

2016 ◽

Vol 2016.25 (0) ◽

pp. 3103

Author(s):

Hiroki YAMADA ◽

Shinichiro HORIUCHI

Keyword(s):

Subjective Rating ◽

Multi Objective Optimization ◽

Vehicle Handling ◽

Handling Performance ◽

Multi Objective

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The Use of Accident Data in Studying Vehicle Handling Performance

Proceedings of the Institution of Mechanical Engineers ◽

10.1243/pime_proc_1975_189_032_02 ◽

1975 ◽

Vol 189 (1) ◽

pp. 243-258 ◽

Cited By ~ 1

Author(s):

I. S. Jones

Keyword(s):

Weight Ratio ◽

Control Measures ◽

Lateral Acceleration ◽

Loss Of Control ◽

Accident Rate ◽

Vehicle Handling ◽

Handling Performance ◽

Handling Characteristics ◽

Accident Causation ◽

Accident Data

A study to establish the relation between vehicle handling performance and accident causation. Since deficiencies in handling are likely to be associated with accidents involving loss of control, measures of handling which are likely to express proneness to loss of control are first suggested; emphasis is placed on simplicity of measurement to allow as many different models of car as possible to be included in the study. Accident rates for the various types of accident which are likely to be influenced by these parameters are then determined by model of car. The effect of other factors, such as variation in driver characteristics between different models of car on these rates is then assessed so that the relation between handling characteristics and accident frequency can be defined. Finally, the relative importance of the various measures of handling suggested are assessed. The results suggest that there is a definite relation between handling performance and accident causation although it is relatively small when compared to driver effects. In explaining the variation in the accident rate between different models of car, driver effects account for as much as 70 per cent; if driver effects are removed from the accident rate then handling parameters explain between 35 and 40 per cent of the remaining variation between models of car. The important parameters appear to be weight, a measure of the change in understeer as a function of lateral acceleration and power to weight ratio.

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