Automotive Chassis Engineering by David C Barton & John D Fieldhouse

Author:David C Barton & John D Fieldhouse
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

3.7.2.1 Steering Response

The balance between steady-state understeer/oversteer is largely dictated by the front to rear lateral load transfer ratio which is dependent on roll centre heights. This can be modified by changes in roll stiffness usually with anti-roll bars. Migration of roll centres can create unwanted variations in steering balance.

3.7.2.2 Straight Line Stability

Increasing front to rear lateral load transfer ratio produces an understeer tendency. Unsymmetrical road undulations induce half-track changes producing lateral force variations at the tyre contact patches with resultant steer effects. A positive half-track change produces a force towards the vehicle centreline and this effect, when combined with bump steer, will affect vehicle stability.

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