Wheel Speed Sensor Operation & Testing

hi I'm Clint and welcome to automate anti-lock braking traction control and electronic stability control systems are now standard on most new cars these systems are yet another level of electronic control to the increasingly complex modern vehicle these modern control systems require very fast and reliable sensor data for peak performance when called upon for many years a magnetic induction sensor supplied the ABS control module with adequate data for wheel or vehicle speed the sensor works by using a stator with a central permanent magnet and a soft iron core surrounded by an induction winding the stator is positioned so that it has a very small clearance or air gap between the stator pole and a toothed throat ER or tone well as the tone wheel rotates the air gap between the pole piece and the teeth change as this occurs the magnetic field or flux from the permanent magnet within the sensor will expand and contract in time with the approaching and receding tooth the movement of the flux across the state of windings induces current flow in the stator circuit the direction and size of the current flow depends entirely on the speed of the rotating tone wheel and whether a tooth is approaching or passing the stator if you would like to continue learning about this topic and get complete access to our extensive video library you need an automate membership visit our website and get started on a better future with better training

Channel: Autodata Training

Views: 640,215

Rating: 4.632391 out of 5

Keywords: Wheel Speed Sensor, Speed Sensor, AutoMate, Automotive, Technical, Training, Technician, Mechanic, inductive, abs, c0035, c0040, c0045, c0050, traction, stability, Magneto - Resistive

Id: YeXlmdlXp2s

Length: 1min 45sec (105 seconds)

Published: Tue Nov 17 2015