Mazda RX-8 2004 - Brake Fluid Pressure Sensor Construction; Brake Fluid Pressure Sensor Function; Combined Sensor Construction;Operation; Combined Sensor Function

DYNAMIC STABILITY CONTROL
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04–15
COMBINED SENSOR FUNCTION
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• A combined sensor, which integrates the yaw rate and lateral-G sensors, has been adopted.
• The combined sensor, located in the floor under the rear console, detects the vehicle yaw rate (vehicle turning
angular speed) and lateral-G, and transmits them to the DSC HU/CM.
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COMBINED SENSOR CONSTRUCTION/OPERATION
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• The combined sensor, with built-in yaw rate and lateral-G sensors, detects and calculates the vehicle yaw rate
and lateral-G, converts them into voltage and transmits this to the DSC HU/CM.
• The output voltage characteristic for the combined sensor is 2.5 V when the vehicle is standing still, and
changes accordingly as yaw rate and lateral-G are formed.
• The yaw rate sensor detects a Coriolis force created by, and in proportion to, the rotation speed of a rotating
tuning fork.
• The lateral-G sensor detects an inertial force created by, and in proportion to, a G-force acting on a silicon
detection component.
Note
• Coriolis force: When an object on a rotating disc attempts to move toward the center of the disc, force is
produced at a right angle to the intended path of travel of the object. This results in the direction of
movement being unchanged from its original point of departure, and the object does not reach the center.
When looking at this effect from outside the disc, it appears as if a force is deflecting the object away from
the center. This appearance of force is called a Coriolis force, and the object actually advances in a
straight course.
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BRAKE FLUID PRESSURE SENSOR FUNCTION
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• The brake fluid pressure sensor detects the fluid pressure from the master cylinder and transmits it to the DSC
HU/CM.
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BRAKE FLUID PRESSURE SENSOR CONSTRUCTION
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• The brake fluid pressure sensor is integrated with
the DSC HU/CM. Therefore if there is any
malfunction of the brake fluid pressure sensor,
replace the DSC HU/CM.
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VEHICLE FRONT
STRUCTUAL VIEW
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BRAKE FLUID
PRESSURE SENSOR
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