Kerékfordulatszámhoz

Kerékfordulatszámhoz, often translated as wheel speed, refers to the rotational speed of a vehicle's wheel. It is a crucial parameter in various automotive systems, including anti-lock braking systems (ABS), traction control systems (TCS), and electronic stability control (ESC). Sensors, typically located near each wheel, measure the kerékfordulatszámhoz and transmit this data to the vehicle's control modules.

In an ABS system, kerékfordulatszámhoz data is used to detect when a wheel is about to lock up during braking. If a wheel's speed drops too rapidly compared to others, the ABS module will momentarily reduce brake pressure to that wheel, allowing it to regain traction and prevent skidding. Similarly, TCS uses kerékfordulatszámhoz to identify wheel spin during acceleration. If a wheel is rotating faster than expected, the system may reduce engine power or apply braking to that wheel to restore grip. ESC monitors the difference between intended and actual vehicle motion by comparing kerékfordulatszámhoz of individual wheels with steering angle inputs and yaw rate.

The measurement of kerékfordulatszámhoz is typically achieved using a toothed ring (reluctor ring) attached to the wheel hub or driveshaft and a magnetic pickup sensor. As the ring rotates, its teeth interrupt the magnetic field of the sensor, generating an electrical pulse. The frequency of these pulses is directly proportional to the wheel's rotational speed. Precise kerékfordulatszámhoz data is essential for the effective and timely operation of these safety and performance enhancing systems, contributing significantly to vehicle stability and control.