Development of a Parameter Identification Method for MF-Tyre/MF-Swift Applied to Parking and Low Speed Manoeuvres

Lugaro, Carlo; Schmeitz, A.J.C.; Ogawa, Toshiya; Murakami, T.; Huisman, Sonny

doi:10.4271/2016-01-1645

Cited by 6 publications

(6 citation statements)

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“…There are two possible methods to identify the model parameters. One is through the sideslip angle sinusoidal sweep test at different frequencies of the MTS machines under different loads and speeds which is similar to reference, 21 but the effect of speed should be considered, and it is also necessary to verify the impact of model improvement on the identification results in the future based on this method Another way is to obtain the complete data required for model identification through a refined theoretical model verified by a small amount of experimental data. Therefore, it is necessary to verify and improve the refined discrete theoretical model.…”

Section: Discussionmentioning

confidence: 99%

“…1 Nowadays, although PAC2002 has been widely used in vehicle development under sideslip, longitudinal slip, and small camber input, there is little validation and application under turn slip input which is of great significance for the force feedback at low speed or small turning radius conditions. Lugaro et al 21 describe a method for the identification of the turn slip parameters from the measured responses at an indoor test facility and by means of comparing vehicle simulation results to instrumented vehicle measurements, including the identified parameters, is validated. However, on the one hand, it only shows the comparison results of the test and model identification under one load, therefore, the accuracy of the model under different loads is unknown.…”

Section: Introductionmentioning

confidence: 99%

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Improvement of steady-state PAC2002 under the sideslip and turn slip inputs based on the discrete theoretical tire model

Liu

2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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Semi-empirical tire model considering turn slip input is of great significance for the force feedback of vehicle at low speed or small turning radius conditions. In this paper a refined discrete model considering contact patch and the deformation of the belt/carcass which are from the finite element model is established. New force and moment calculation matrix equations are constructed and different iterative methods are compared and Richardson iteration has been chosen because of its best iteration speed. The tire dynamics characteristics under sideslip and turn slip inputs are analyzed based on the discrete model simulation results. It shows the PAC2002 influence coefficients of turn slip on peak value of side force and cornering stiffness can not be well expressed under different loads. And at small loads, the peak value and stiffness of aligning moment relative to turn slip under different sideslip angles can not well be expressed. According to above problems, the PAC2002 model is improved. After improvement, the average error of lateral force relative to sideslip angle under different turn slip is reduced from 3.7% to 1.4%, the average error of lateral force relative to turn slip under different sideslip angle is reduced from 9.9% to 3.6%. And the error of aligning moment relative to sideslip angle under different turn slip is reduced from 8.5% to 5.1% and the error of aligning moment relative to turn slip under different sideslip angle is reduced from 8.9% to 3.2% at small loads. The improvement proposed in this paper have a good result.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improvement of steady-state PAC2002 under the sideslip and turn slip inputs based on the discrete theoretical tire model

Liu

2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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show abstract

Section: Introductionmentioning

confidence: 99%

“…The structural model can be divided into rigid tread tire model 6 (RT-tire), shown in Figure 3(a), flexible tread tire model 7 (FT-tire), shown in Figure 3(b). Rigid carcass ring 6 is the main feature of RT-tire model (Figure 3(a)) and a flexible unit representing the residual stiffness, the tread can be characterized with the rim of the dislocation formation, the effective road input is substituted by road height, and effective rolling radius, 8 achieve the simulation of rolling condition. FT-tire model (Figure 3(b)) simplified the tire as the flexible tread on elastic foundation, in which tread referred as flexible tread, sidewall and inflation pressure referred as elastic foundation, 7 and the FT-tire model can achieve the deformation of tread.…”

Section: Introductionmentioning

confidence: 99%

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Vibration transfer function of in-plane rigid–elastic-coupled tire model for heavy-loaded radial tire

Liu

Gao

Wang

et al. 2017

Advances in Mechanical Engineering

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The modeling and vibration transfer function of in-plane rigid-elastic-coupled tire model is put forward for researching the heavy-loaded radial tire with the feather of larger radial length and width ratio. The coupled characteristic of tread and sidewall is taken into consideration, and the coupled natural frequencies are analyzed with the normal pressure and fixed rim. The rigid-elastic coupling equation is modeled with the flexible beam on elastic foundation, which tread is modeled as the Euler beam and the sidewall is regarded as the sub-sectional spring with lumped mass. The dynamic equation is discrete with finite difference method, and three-parameter rigid-elastic-coupled tire model is derived based on the geometrical and structural parameters. The structural parameters of the tire are identified by the genetic algorithm based on the experimental modal parameter of heavy-loaded tire, and the higher order modal frequency is predicted with the analytic method. The analytical transfer function between tread and tread, tread and sidewall is derived. Experimental and theoretical results show that the in-plane rigid-elastic-coupled tire model can achieve the higher precision on predicting the transfer function and vibration feature of heavy-loaded tire within the frequency band of 300 Hz, compared with the method which only considers the coupling of tread and rim and is limited to 180 Hz.

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Simplified Turn Slip Modeling by a Parallel Magic Formula Model

Besselink

Baart²,

Nijmeijer³

2022

Lecture Notes in Mechanical Engineering

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Development of a Parameter Identification Method for MF-Tyre/MF-Swift Applied to Parking and Low Speed Manoeuvres

Cited by 6 publications

References 0 publications

Improvement of steady-state PAC2002 under the sideslip and turn slip inputs based on the discrete theoretical tire model

Improvement of steady-state PAC2002 under the sideslip and turn slip inputs based on the discrete theoretical tire model

Vibration transfer function of in-plane rigid–elastic-coupled tire model for heavy-loaded radial tire

Simplified Turn Slip Modeling by a Parallel Magic Formula Model

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