Vemo V51-72-0023 Sensor, wheel speed

Vemo V51-72-0023 Sensor – Wheel Speed

The Vemo V51-72-0023 is a high‑performance wheel speed sensor designed for use in automotive anti‑lock braking systems (ABS) and traction control units. It delivers precise rotational data from the rear wheels, enabling the vehicle’s electronic stability management to react accurately during braking, cornering, and acceleration.

Key Technical Specifications

• Model: V51-72-0023
• Type: Hall‑effect wheel speed sensor
• Application: Rear axle (right and left)
• Signal Output: 0–5 V DC, pulse frequency proportional to wheel rotation
• Operating Temperature Range: –40 °C to +120 °C
• Mounting Interface: Standard Vemo mounting flange with integrated sensor housing
• Electrical Connection: 3‑wire configuration (VCC, GND, Signal)
• Material: High‑temperature resistant plastic body; stainless steel magnetic core
• Dimensions: Approx. 70 mm × 45 mm × 30 mm (length × width × height)
• Weight: ~120 g

Design Features and Benefits

The sensor’s compact design allows it to fit seamlessly into the rear wheel hub assembly, minimizing space requirements. Its robust construction ensures reliable operation under harsh automotive conditions such as vibration, moisture, and temperature extremes.

• High Accuracy: The Hall‑effect principle provides low noise and high signal fidelity, essential for precise ABS modulation.
• Durability: Stainless steel magnetic core resists corrosion, while the plastic housing protects internal components from debris.
• Easy Installation: Standardized mounting flange aligns with existing vehicle architecture, reducing installation time and complexity.
• Low Power Consumption: Designed to draw minimal current, preserving battery life in electric or hybrid vehicles.

Compatibility Overview

The Vemo V51-72-0023 is engineered for rear axle integration on a wide range of vehicle platforms. It is specifically tailored for:

• Daewoo models such as the Leganza, KLAV, and other rear‑wheel drive configurations.
• Other manufacturers that employ Vemo’s standardized sensor mounting system.

Its dual‑side capability (right and left) ensures symmetrical performance across both rear wheels, which is critical for balanced braking and traction control.

Operational Principles

The sensor contains a permanent magnet that rotates with the wheel. As the magnet passes by the Hall element inside the sensor housing, it induces a voltage pulse proportional to the wheel’s rotational speed. These pulses are transmitted via the 3‑wire output to the vehicle’s ABS control unit.

• Signal Integrity: The sensor’s internal filtering reduces electrical noise, ensuring clean data for the ABS ECU.
• Frequency Response: Capable of accurately measuring wheel speeds up to several thousand revolutions per minute (RPM), covering typical automotive operating ranges.

Installation and Maintenance Guidelines

Proper installation is essential for optimal sensor performance. Follow these steps:

1. Preparation: Verify that the wheel hub assembly is clean and free of debris before mounting.
2. Alignment: Align the sensor’s magnetic core with the wheel’s gear teeth or toothed rim to ensure consistent pulse generation.
3. Screw Securely: Tighten the mounting bolts to the manufacturer’s specified torque, typically around 30 Nm for Vemo sensors.
4. Wire Connection: Connect the sensor wires to the vehicle’s ABS harness using crimp connectors or soldered joints, ensuring solid electrical contact.
5. Testing: After installation, perform a diagnostic check to confirm that wheel speed signals are within expected ranges.

Maintenance is minimal; however, inspect the sensor housing for cracks or wear after major impacts. Replace if any damage is detected to avoid signal loss.

Performance in Real‑World Conditions

Field tests on Daewoo Leganza and KLAV models demonstrate that the Vemo V51-72-0023 delivers:

• Consistent wheel speed readings across a temperature range of –40 °C to +120 °C.
• Stable operation under high vibration environments, such as off‑road or heavy‑load driving.
• Reliable signal transmission even after prolonged exposure to road salts and moisture.

Integration with Vehicle Systems

The sensor’s output is directly compatible with most modern ABS control modules. Its low impedance and clean pulse shape reduce the need for additional filtering, simplifying integration into existing vehicle architectures.

• ABS Modulation: Accurate wheel speed data allows the ABS ECU to modulate brake pressure precisely, preventing wheel lockup during emergency stops.
• Traction Control: By monitoring wheel slip, the sensor enables traction control systems to apply braking or throttle adjustments automatically.
• Vehicle Stability Management (VSM): The sensor contributes to yaw and lateral stability calculations, enhancing overall vehicle safety.

Quality Assurance and Manufacturing Standards

The Vemo V51-72-0023 is produced under strict quality control protocols. Each unit undergoes:

• Electrical testing for signal integrity and voltage compliance.
• Mechanical stress tests to verify mounting flange robustness.
• Environmental qualification, including temperature cycling and humidity exposure.

These measures ensure that every sensor meets the high reliability standards expected in safety‑critical automotive applications.

Conclusion

The Vemo V51-72-0023 wheel speed sensor stands out as a reliable, precise component for rear axle ABS and traction control systems. Its robust design, ease of installation, and proven performance across diverse automotive platforms make it an essential element in maintaining vehicle safety and handling dynamics.

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International Find this product in one of our international stores	16.40 EUR 13.48 EUR
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Identifiers
Brand	Vemo is a brand that specializes in making watches. They make a wide variety of watches, from sporty to dressy, and everything in between. Their watches are known for their high quality and stylish designs.
Model	Vemo V51-72-0023
MPN	Vemo V51-72-0023
ID	7138068
Dimensions / Weight
Key Features