BRIEF INFORMATION Wheel speed sensors

➔ High quality products
➔ Meets OEM specifications
➔ Diverse range of sensors including high quality cables with sizes starting from 300 mm to 4,000 mm
➔ Mounting kit included: bush and grease
➔ Potential stock reduction on customer side by offering extension cables

PRODUCT FEATURES

Application Applications for most relevant truck, bus and trailer manufacturers: Mercedes-Benz, DAF, Iveco, Scania, Volvo, Renault, MAN, Irisbus, Neoplan, Otokar, Paccar, Yutong, Hyundai, Mack, Peterbilt, Solaris, Tata, Krone, Kogel, Schmitz Cargobull, Schwarzmüller, Liebherr, BPW, SAF, Meritor, Valx.

Design and function The wheel speed sensor (ABS sensor) is an inductive, passive sensor composed of a permanent magnet, copper winding, a case and an electric cable with dedicated socket which works without power supply. ABS sensors usually have cables with or without protection covers, lengths of different sizes and sensor angles at 90 degrees or straight.

When the polar wheel starts to spin, it generates a signal in the form of alternating current. This signal is used by the ABS sensor to prevent the wheels from locking when the service brake is applied, by reducing the braking force on the respective wheels or for the ASR (Anti Slip Regulation) system to apply the braking forces to the traction wheels that slip.

Installation Easy to mount due to 1:1 replacements in OE quality.

FUNCTIONAL DIAGRAM

The wheel speed sensors are mounted directly above the pulse wheel connected to the wheel hub or drive shaft. The pole pin, which is surrounded by a winding, is connected to a permanent magnet, whose magnetic effect extends to the pole wheel. The rotational movement of the pulse wheel and the associated change of tooth and tooth gap cause a change in the magnetic flux through the pole pin and the winding. This changing magnetic field induces a measurable alternating voltage in the winding (see diagram on the right).

The frequency and amplitudes of this AC voltage are in proportion to the wheel speed. Inductive passive sensors do not require a separate power supply from the control unit. Since the signal range for signal recognition is defined by the control unit, the amplitude height must be within a voltage range. The distance (A) between the sensor and the pulse wheel is determined by the axis design (see diagram on the left).

TECHNICAL DETAILS

Technical data 
Diameter of sensor16 mm
Operating temperature- 40 °C to +125 °C
Vibration resistanceYes
Weight60 g to 220 g
Electrical connectionSocket
Dimensional sketch
Pinbelegung (Beispiel)

Pin 1: Spannungsversorgung
Pin 2: CAN high
Pin 3: Masse
Pin 4: CAN low

Reset filter
Reset filter