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2. Wheel speed sensor - Wikipedia

   en.wikipedia.org/wiki/Wheel_speed_sensor

   The most common wheel speed sensor system consists of a ferromagnetic toothed reluctor ring (tone wheel) and a sensor (which can be passive or active). The tone wheel is typically made of steel and may be an open-air design, or sealed (as in the case of unitized bearing assemblies). The number of teeth is chosen as a trade-off between low-speed ...

3. Hall effect sensor - Wikipedia

   en.wikipedia.org/wiki/Hall_effect_sensor

   A Hall effect sensor (also known as a Hall sensor or Hall probe) is any sensor incorporating one or more Hall elements, each of which produces a voltage proportional to one axial component of the magnetic field vector B using the Hall effect (named for physicist Edwin Hall). Hall sensors are used for proximity sensing, positioning, speed ...

4. Traction control system - Wikipedia

   en.wikipedia.org/wiki/Traction_control_system

   Each wheel is equipped with a sensor that senses changes in its speed due to loss of traction. The sensed speed from the individual wheels is passed on to an electronic control unit (ECU). The ECU processes the information from the wheels and initiates braking to the affected wheels via a cable connected to an automatic traction control (ATC ...

5. Anti-lock braking system - Wikipedia

   en.wikipedia.org/wiki/Anti-lock_braking_system

   There are four main components of ABS: wheel speed sensors, valves, a pump, and a controller. ABS speed sensors Speed sensors (Encoders) A speed sensor is used to determine the acceleration or deceleration of the wheel. These sensors use a magnet and a Hall effect sensor, or a toothed wheel and an electromagnetic coil to generate a signal. The ...

6. Electronic stability control - Wikipedia

   en.wikipedia.org/wiki/Electronic_stability_control

   The most important sensors are as follows: A steering wheel angle sensor that determines where the driver wants to steer. This kind of sensor often uses AMR elements. A yaw rate sensor that measures the rotation rate of the car. The data from the yaw sensor is compared with the data from the steering wheel angle sensor to determine regulating ...

7. Tire-pressure monitoring system - Wikipedia

   en.wikipedia.org/wiki/Tire-pressure_monitoring...

   A tire-pressure monitoring system (TPMS) monitors the air pressure inside the pneumatic tires on vehicles. [1] A TPMS reports real-time tire-pressure information to the driver, using either a gauge, a pictogram display, or a simple low-pressure warning light. TPMS can be divided into two different types – direct (dTPMS) and indirect (iTPMS).