Design scheme of two-way remote keyless control of automobile body system based on Infineon
Infineon provides a variety of vehicle-specific products and internal electronics, such as protective power switches for lamp and motor control, special system basis chips and easy-to-use Hall sensor solutions. The intelligence center of the car body system uses Infineon's new XC2200 series.
The structure diagram on the right is an example application diagram of the central vehicle body control module, showing the solution for the microcontroller, all bulbs and motor loads, as well as the power IC and network transceiver. It is a virtual chart, showing two different load control principles (discrete and integrated) in a chart, and in fact load division is based on system parameters (such as power track, power consumption and scalability) .
System advantages
Status updates (such as doors, HAVC, windows, fuel, etc.)
Listen before talk (LBT) (avoid data conflicts)
Lower power consumption
Higher two-way encryption (standard "handshake")
Alarm system status
Integration with tire pressure monitoring 
Block diagram of two-way remote keyless control scheme
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Yangzhou IdealTek Electronics Co., Ltd. , https://www.idealtekpower.com