DYNAMIC STABILITY CONTROL
04–15–2
DYNAMIC STABILITY CONTROL (DSC) OUTLINE
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• The DSC HU/CM, integrating both the hydraulic unit (HU) and control module (CM), has been adopted,
resulting in a size and weight reduction.
• A combined sensor, integrating both the yaw rate sensor and lateral-G sensor, has been adopted, improving
serviceability.
• The controller area network (CAN) system has been adopted for the steering angle sensor, improving
serviceability and reliability.
• An enhanced malfunction diagnosis system, used with the WDS, has been adopted, improving serviceability.
DSC Operation Outline
• The ABS prevents wheel lock-up during braking. The TCS detects drive wheel spin due to the accelerator pedal
being pressed too hard or similar causes and controls engine speed to suppress wheel spin. With these
systems, safety is assured when driving or stopping.
• Additionally, sudden changes in vehicle attitude, due to evasive steering or road conditions, are controlled by
the DSC. The DSC suppresses vehicle sideslip when driving due to vehicle spin (oversteer) or drift-out
(understeer) by controlling braking and engine speed. At this time, the DSC indicator light illuminates to alert
the driver that the DSC is operating due to a dangerous situation. As a result, the driver can calmly react and is
provided leeway for the next maneuver, resulting in safe driving conditions.
• In this way the combination of DSC + ABS + TCS ensures driving, stopping and turning safety in all aspects.
Results Of DSC Operation
Caution
• While the DSC is a steering safety system, it does not improve normal steering function.
Therefore, always drive carefully, even if the vehicle has DSC, and do not overestimate the DSC
capability.
• The DSC and ABS will not operate normally under the following conditions:
— With tires that are not of the specified size, manufacturer or tread pattern, or not inflated
according to specification
— With tires that have significant comparative wear variation
— With tire chains
WITHOUT DSC WITH DSC
DRIFT OUT
(UNDERSTEER)
DRIFT OUT (UNDERSTEER) SUPPRESSION
WITH DSCWITHOUT DSC
VEHICLE SPIN
(OVERSTEER)
VEHICLE SPIN (OVERSTEER) SUPPRESSION
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