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Technique for Simulating Vehicle Handling in Very Low Speed Range for Model Based Development

Article of Honda R&D Technical Review Vol.30 No.2

Summary

A conventional performance design simulation model, used in the development of mass production vehicles, was taken as the base to which a steering system model was newly added on to create a technique capable of simulating vehicle handling at very low speeds by performing a bulk calculation of those indices together during the initial stages of development. As a result, there is no longer a need to create separate simulation models for each index, and the efficiency of performance design has been enhanced. Formerly, the performance index of steering return torque could not readily be examined by means of simulation during the initial stages of development, but this can now be estimated seamlessly from high speeds to very low speeds by changing the vehicle speed condition. This technique is effective for performance design during the initial stages of development, including for investigation of specifications to achieve a balance between vehicle handling at the very low speed range and handling stability at the high speed range, for analysis of factors in torque around the king pin axis, and other such investigation. It has been applied to the development of chassis platforms for compact vehicles that were adopted, starting with the 2014 model year FIT.

Reference

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Author (organization or company)

Takayuki TOYOSHIMA(Automobile R&D Center)、Yoshitomo AZEKATSU(Automobile R&D Center)、Yoshiaki KOBAYASHI(Automobile R&D Center)、Naofumi IKEDA(Automobile R&D Center)、Hiroki TAKANO(Automobile R&D Center)、Isao OBATA(Automobile R&D Center)

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