What is the Function of Automotive Chips?
1 Answers
When the car key is turned in the ignition switch, the Engine Control Unit (ECU) in the vehicle sends an encrypted electronic code signal to the chip inside the car key. The vehicle will only start if the ECU unit receives and recognizes the correct anti-theft coded signal. Therefore, even a simple car key without any buttons can activate and unlock the vehicle's anti-theft system through the internal chip encoding. Below is more related information: Chip Function: Car keys with chips require specialized original factory matching equipment for programming. In the automotive field, these chips are referred to as magnetically coupled transponder systems. Essentially, these systems operate passively. The chip itself does not need a constant power supply and thus does not require continuous electricity. It only needs to be within the range of electromagnetic waves at a frequency of 125kHz. Under these electromagnetic waves, the chip generates the pre-set coded signal, typically within a range of 1 cm to 15 cm. Since this is a radio frequency, it can penetrate materials, allowing the chip to be concealed within a plastic or rubber key head without being visible externally. The working principle of key recognition in most automotive anti-theft system chips is fundamentally similar. When a car key with a chip is inserted into the ignition lock and turned to the "On" or "Run" position, the induction coil installed around the ignition lock emits an electromagnetic wave. The electromagnetic wave's energy causes the electronic chip in the key to generate and transmit the coded signal.
