S12VR anti-pinch Window Lift reference design

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S12VR anti-pinch Window Lift reference design

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S12VR anti-pinch Window Lift reference design

Overview

 

The RDS12VR is a solution engineered for window lift, power windows, and sun roof systems.

Developed in partnership with Tongji University and based on the 16-bit S12 MagniV® S12VR mixed-signal microcontrollers, the RDS12VR offers control by multiple LIN salve nodes or LIN master node, through the easy-to-control Graphics User Interface (GUI).

The RDS12VR reduces unnecessary external components, lowers the total bill of material (BoM), improves system quality, and saves space in automotive applications through a smaller PCB. The RDS12VR solution includes hardware for real door/window in-vehicle applications, as well as software including anti-pinch algorithms and low-level S12VR drivers for reducing time to market.

Block Diagram

Juan-Rodarte_1-1617742041996.png

 

Products

Product Features
S12VR 

16-bit S12 MagniV® S12VR mixed-signal microcontrollers, efficient and scalable relay driven DC motor control solution

 

Features

Features

 

  • Window manual/automatic up/down, automatic up/down with stop function
  • Anti-pinch in both manual/automatic mode, anti-pinch region and force can be adjusted
  • Stuck detection out of anti-pinch region, motor overload protection
  • Soft stop when window is close to the top/bottom
  • Self learning, calibration by updating the window/motor parameters stored in EEPROM
  • Use hall sensor as well as current sense to judge anti-pinch in algorithm

Power

 

  • Fault diagnosis, indicating low voltage, over voltage/current/temperature etc.
  • Low power mode (leveraging S12VR low power mode) to reduce power consumption

GUI

  • Easy-to-control GUI, set the parameters and get the status
  • Window lift can be controlled either by multiple LIN salve nodes or LIN master node, through GUI

Functional Safety

 

 

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