Presently automation development in vehicles tech has been increased the responsibility of vehicle systems due to cultivation new safety and performance features. Where in a number of vehicle techs have advanced rapidly in ours time, the individual wheel speed sensor is the main technology that general car uses now and each wheel has a essential part each car, namely a wheel speed sensor. This article will discuss the importance wheel speed sensor for each wheel and also about why the wheel sensor is crucial for body cars tech.
First of all. This wheel speed sensor is a very important part in the antiskid system. This is because. If there is some emergency that the car turns into any direction. The speed of the wheels can be detected by a scanner. Besides. If the scanner signals the speed of the wheels is very different that’s because the car is not under control. But if all the wheels’ speeds are not equal by a certain percentage that the car is under control.
Secondly. This scanner can detect the speed of the wheels. The antiskid is called ABS. And. this technology can detect the speed of the wheels. And then. the wheels are prevented by the ABS system from locking when the car is braking as quickly as possible.
In conclusion,the wheel speed sensor will be a key technology of the safe drive in the future. I believe that car drivers will have better experience to drive their cars safe throught the wheel speed sensor and the process of braking the car.
What Are Individual Wheel Speed Sensors?
There is a sensor fitted on each of the vehicle’s wheels, one per wheel, that monitors or provides the speed of that wheel. This is different to the systems that have one sensor in the centre of the vehicle that monitors speed of all the wheels. The system has a separate sensor per wheel, which sends the information to the computer, which then makes the correct decisions on actioning this data. The information or data from the wheel speed becomes very important for many vehicle systems that need precise information on the speed of the wheel to do their job.
How Individual Wheel Speed Sensors Function
Each wheel speed sensor operates using one of two primary technologies:
Magnetic Inductive Sensors
The sensor is a coil and a magnet. The tone ring has some teeth, it rotates around the sensor encoder wheel, when teeth pass in front of the sensor, the magnetic field will changed, the coil generated alternating current, the circuit transformed speed signal.
Hall Effect Sensors A Hall effect sensor will monitor the output of a magnetic field in the form of electrical pulses. A tone ring has teeth attached to a wheel. The wheel will spin and the tone ring has other teeth that will cut the magnetic field differently, this is detected by the sensor based on the speed of the wheels.
The Benefits of Individual Wheel Speed Sensors
Having a wheel speed sensor for each wheel offers several advantages:
Better accuracy: Each sensor delivers very accurate data from each wheel and, using the fourth sensor at the rear of the vehicle, provides a highly-accurate correlation. That’s important because systems such as ABS, TCS and ESC take their very high level of intervention from very accurate data from each wheel.
Enhanced Anti-Lock Braking System (ABS) Performance: The ABS (Anti-Lock Braking System) works on a principle that provides accurate wheel speed information to avoid wheel lock-up when the braking is applied. Basically, each wheel speed is detected by a specific sensor, so the information is accurate and the ABS vehicle function enhances the control modulation to apply the brake force. Eventually, it enables a car to stop safely in an emergency.
Enhanced traction: Vehicle traction control systems use information from the speeds of individual wheels to help control and mitigate wheel slip. By having individual wheel speed sensors, a system can independently detect and mitigate wheel slip on each individual tyre, increasing traction and stability, especially in slippery driving conditions.
Enhanced ESC: ESC stands for Electronic Stability Control (aka Electronic ESP). It is a networked system of sensors and engine components that controls the brakes of a vehicle in order to help stabilise a vehicle by monitoring driving conditions and applying braking force to individual wheels as needed, based on readings of a set of sensors that monitor the speed of each wheel to prevent a vehicle from skidding or losing control in a turn or under adverse conditions.
Better adaptive cruise control and advanced driver assistance: These systems rely on being able to react with greater precision to steering, speed adjustments and evasive manoeuvres.
Common Issues with Individual Wheel Speed Sensors
Despite their importance, individual wheel speed sensors can encounter several issues:
Bad Sensor: Wheel speed sensors can send incorrect or intermittent data to the vehicle’s ‘engine management computer’ or ECU, and could result in failure of the ABS, TCS or the ESC system. A bad sensor will usually give an alert on the dash in the form of warning lights, and braking and traction control will feel inconsistent.
Contamination/Dirt: Dirt, debris, corrosion or other contamination can lead to inaccurate sensor readings. Keep these problems at bay with regular cleaning and maintenance.
Wiring and Connection Issues: Wiring connecting sensors to the vehicle’s control systems can become damaged or loose. Checking connections and wiring for wear is important to keeping the sensors in good working order.
Tone Ring Damage: The tone ring is coupled with the wheel speed sensor and can become damaged or misplaced, which can skew the ABS wheel speed readings.
Maintenance and Care for Wheel Speed Sensors
To keep individual wheel speed sensors in good working order, consider these steps:
Regular Inspections: To have a periodic check of your vehicle put wheel speed sensors in the regular maintenance schedule. Professional checkups could determine the problems that reduce performance.
Keep the sensors clean: The sensors and tone rings should not have any dust or grime. Clean off any dirt regularly.
Look for Injury and Check Connections: Replace damaged sensor for proper operations.
Warning Lights If you have warning lights on for your anti-lock braking system (ABS), your traction control system (TCS) or your electronic stability control (ESC), as they all relate to the same wheel speed sensor, the first thing to do is have the vehicle inspected by a mechanic to determine if the wheel speed sensors are not working properly and, if so, you need to have them repaired.
Conclusion
Individual wheel speed sensors a very important equipment of the modern vehicle safety and performance systems. Because all safety and performance system of ABS, traction control, electronic stability control, modern advanced driver assistance system ADAS technology need to know the accurate single speed of each wheel. It is very necessary to learn the role and meaning of individual wheel speed sensor for their safe and reliable vehicle operation of modern drivers. Individual wheel speed sensors are a good technology for modern driver’s vehicle safe driving. The vehicle maintenance of the automobile must be thorough, must often be maintained, the regular maintenance of the wheel speed sensor, check and repair can make the modern vehicle continue to provide you with a safe and reliable experience of driving.