Course: Wheel Speed Sensors

The way wheel speed signals are recorded has undergone drastic changes in recent years. The mechanical pulse generator ring has been replaced in many motor vehicles by a magnetic encoder. This has also led to totally new ways of diagnosing electrical signals and to new methods for inspecting mechanical components. With the "wheel speed sensor technology" training system it should be possible to compare tried and trusted techniques in the form of inductive-type and Hall effect sensors directly with magneto-resistive sensors. It is also possible to carry out a mechanical inspection of the pulse generator ring and the magnetic encoder in the training system itself.

Components of the experiment hardware

• Three electric traction motors
• Measurement sockets for on-board network voltage
• 4 control units available for experimenting thanks to measurement sockets for input and output signal processing 
• Ignition switch
• Selection switch for individual or shared drive motor operation
• Continuous speed setting
• Speed indicator
• 2 Magneto-resistive sensors
• 1 Inductive-type sensor
• 1 Hall effect sensor
• 1 Pulse generator ring
• 2 Magnetic encoders
• 2 Cover plates
• Fault simulation circuits

Scope of delivery

• “Wheel speed sensor“ board
• Resistor, 22 Ω
• Resistor, 1 kΩ
• Testing card
• Long measurement leads
• Labsoft browser, course software and additional virtual instruments