The structure, principle, application, detection, installation, and development history of crankshaft sensors 4

6、 Development history:

The development of crankshaft sensors has gone through multiple stages, from early simple mechanical devices to today's high-precision electronic sensors, reflecting the trajectory of technological progress in the automotive industry.diode

Before the 1970s, cars mainly relied on mechanical ignition systems, which did not directly use crankshaft sensors. With the advancement of electronic technology and the introduction of electronic fuel injection systems, the demand for precise control of engine operating conditions has increased, and the concept of crankshaft sensors has gradually taken shape.diode

In the 1980s, with the development of microelectronics technology, the first generation of electronic crankshaft sensors emerged. These initial sensors are mainly based on Hall effect or magnetoresistance effect, which can provide relatively rough speed signals to the engine control unit (ECU) for adjusting ignition timing and fuel injection quantity. This marks an important transition from mechanical to electronic control.diode

In the 1990s, with the increasing complexity of automotive electronic control systems, the requirements for the accuracy and reliability of crankshaft sensors also increased. During this period, the ADG508FBRNZ sensor began to adopt higher precision sensing elements and complex signal processing algorithms, which could provide more accurate speed and crankshaft position information, greatly improving engine performance and fuel economy.diode