Integrated sensor mounted on the left side of the parking brake lever (left hand drive models) or on the right side of the parking brake lever (right hand drive models) and determines the yaw rate of the car (cornering speed of a car) and longitudinal acceleration. The sensor sends a signal to the DSC HU/CM system.
Combined sensor output voltage (2.5V when car is stationary) varies in accordance with the yaw rate and the magnitude of the longitudinal acceleration.
The yaw rate is determined when the sensor detects a Coriolis force that is proportional to the rotation speed.
The magnitude of the longitudinal acceleration is determined when the sensor detects an inertial force proportional to the longitudinal acceleration acting on the silicon sensing element.
Note.
- Coriolis force.
- When an object on a rotating disk moves towards its center, a force is generated at right angles to the object's path.
- This causes the direction of movement of the object to remain unchanged relative to the point of origin, and the object does not reach the center.
- This force that deviates the object from the center is called the Coriolis force, and the actual movement of the object is rectilinear.
Pic. 6.10. Scheme of operation of the combined dynamic stability control sensor of the Mazda 6 car: 1 - appearance; 2 - the front of the car; 3 – output voltage; 4 - acceleration; 5 - left turn; 6 - longitudinal acceleration; 7 - right turn; 8 - output voltage; 9 - left turn; 10 – yaw rate; 11 - right turn