Mazda RX-8 2004 - Dynamic Stability Control 04-15 Dynamic Stability Control

DYNAMIC STABILITY CONTROL
04–15–1
04–15
04–15 DYNAMIC STABILITY CONTROL
DYNAMIC STABILITY CONTROL (DSC)
OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . 04–15–1
DSC Operation Outline . . . . . . . . . . . . 04–15–2
DYNAMIC STABILITY CONTROL (DSC)
STRUCTURAL VIEW . . . . . . . . . . . . . . 04–15–3
DYNAMIC STABILITY CONTROL (DSC)
CONSTRUCTION . . . . . . . . . . . . . . . . . 04–15–3
DYNAMIC STABILITY CONTROL (DSC)
SYSTEM WIRING DIAGRAM . . . . . . . . 04–15–4
DSC HU/CM CONSTRUCTION. . . . . . . . 04–15–5
DSC HU PART FUNCTION . . . . . . . . . . . 04–15–5
DSC HU PART CONSTRUCTION/
OPERATION . . . . . . . . . . . . . . . . . . . . . 04–15–5
Construction. . . . . . . . . . . . . . . . . . . . . 04–15–5
Operation . . . . . . . . . . . . . . . . . . . . . . . 04–15–7
DSC CM PART FUNCTION. . . . . . . . . . . 04–15–11
Function Table . . . . . . . . . . . . . . . . . . . 04–15–11
Block Diagram . . . . . . . . . . . . . . . . . . . 04–15–12
ABS CONTROL FUNCTION . . . . . . . . . . 04–15–12
EBD CONTROL FUNCTION . . . . . . . . . . 04–15–12
TCS CONTROL OUTLINE . . . . . . . . . . . 04–15–13
Features. . . . . . . . . . . . . . . . . . . . . . . . 04–15–13
Block Diagram . . . . . . . . . . . . . . . . . . . 04–15–13
TCS CONTROL OPERATION. . . . . . . . . 04–15–13
DSC CONTROL OUTLINE . . . . . . . . . . . 04–15–14
Vehicle Condition Determination . . . . . 04–15–14
Oversteer Tendency Determination . . . 04–15–14
Understeer Tendency Determination . . 04–15–14
DSC CONTROL OPERATION . . . . . . . . 04–15–15
Oversteer Tendency Suppression. . . . . 04–15–15
Understeer Tendency Suppression. . . . 04–15–15
CONTROLLER AREA NETWORK (CAN)
OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . 04–15–16
Data sent. . . . . . . . . . . . . . . . . . . . . . . . 04–15–16
Data received . . . . . . . . . . . . . . . . . . . . 04–15–16
ABS WHEEL-SPEED SENSOR
FUNCTION . . . . . . . . . . . . . . . . . . . . . . . 04–15–16
ABS WHEEL-SPEED SENSOR
CONSTRUCTION/OPERATION . . . . . . . 04–15–16
COMBINED SENSOR FUNCTION . . . . . . 04–15–17
COMBINED SENSOR CONSTRUCTION/
OPERATION . . . . . . . . . . . . . . . . . . . . . . 04–15–17
BRAKE FLUID PRESSURE SENSOR
FUNCTION . . . . . . . . . . . . . . . . . . . . . . . 04–15–17
BRAKE FLUID PRESSURE SENSOR
CONSTRUCTION . . . . . . . . . . . . . . . . . . 04–15–17
STEERING ANGLE SENSOR
FUNCTION . . . . . . . . . . . . . . . . . . . . . . . 04–15–18
STEERING ANGLE SENSOR
CONSTRUCTION . . . . . . . . . . . . . . . . . . 04–15–18
DSC INDICATOR LIGHT FUNCTION . . . 04–15–18
DSC INDICATOR LIGHT OPERATION . . 04–15–18
DSC Indicator Light Operation . . . . . . . 04–15–19
DSC OFF SWITCH, DSC OFF LIGHT
FUNCTION . . . . . . . . . . . . . . . . . . . . . . . 04–15–19
DSC OFF SWITCH, DSC OFF LIGHT
OPERATION . . . . . . . . . . . . . . . . . . . . . . 04–15–19
End of Toc
DYNAMIC STABILITY CONTROL (DSC) OUTLINE
CHU041543000S01
• 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.