Dsc Control Operation; Oversteer Tendency Suppression; Understeer Tendency Suppression - Mazda RX-8 2004 Service Highlights

DSC CONTROL OPERATION

• When the DSC HU/CM determines that the vehicle has a strong oversteer or understeer tendency, engine
output is lowered and, at the same time, it suppresses the yaw moment by affecting the braking of the front or
rear wheels to inhibit the oversteer or understeer tendency.

Oversteer Tendency Suppression

• When a large oversteer tendency is determined, braking is applied the outer front wheel according to the
degree of the tendency. As a result, a yaw moment is formed towards the outer side of the vehicle and the
oversteer tendency is suppressed.
RIGHT CORNERING
BRAKE FORCE FROM
HYDRAULIC BRAKES

Understeer Tendency Suppression

• When a large understeer tendency is determined, engine output is controlled and braking is applied to the inner
front wheel according to the degree of the tendency. As a result, a yaw moment is formed towards the inner
side of the vehicle and the understeer tendency is suppressed.
RIGHT CORNERING
End Of Sie
DYNAMIC STABILITY CONTROL
OUTWARD YAW MOMENTUM
YAW MOMENTUM
INWARD YAW MOMENTUM
BRAKE FORCE FROM
ENGINE BRAKING
BRAKE FORCE FROM
HYDRAULIC BRAKES
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