COMBINED SENSOR CONSTRUCTION/OPERATION

id041500101900

• 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 is formed.

• Yaw rate is formed when the sensor detects a Coriolis force created by, and in proportion to, the rotation speed of a rotating tuning fork.

• Lateral G is formed when the sensor detects an inertial force created by, and in proportion to, a G force acting on a silicon detection component.

Note

• The Coriolis force: When an object on a rotating disc attempts to move toward the disc's center, force is produced at a right angle to the object's intended path of travel. This results in the object's direction of movement being unchanged from its original point of departure, and it not reaching the center. When looking at this effect from outside the disc, it appears as force deflecting the object away from the center. This appearance of force is called Coriolis force, and the object's actual direction of advance takes a straight course.