Page 350 - Automotive Engineering Powertrain Chassis System and Vehicle Body

Tyre characteristics and vehicle handling and stability C HAPTER 11.1

Fig. 11.1-23 Influence of steering on the stability margin (system of Fig. 11.1-20 (top)).

in front of the centre of gravity the increase in r and v The figure shows the change in state vector for dif-
becomes: ferent points of application and direction of the impulse
2
S (k ¼ I/m ¼ ab). Evidently, an impulse acting at the rear
Sx S
Dr ¼ ; Dv ¼ (11.1.98) (in outward direction) constitutes the most dangerous
I m disturbance. On the other hand, an impulse acting in
front of the centre of gravity about half way from the
which results in the direction
front axle does not appear to be able to get the new
aDr x ab starting point outside of the domain of attraction no
¼ (11.1.99)
Dv b k 2 matter the intensity of the impulse.

Fig. 11.1-24 Influence of steering on the stability margin (system of Fig. 11.1-20 (bottom)).

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