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
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
Able to comply with relevant content in US Federal Motor Vehicle Safety FMVSS No. 118 standard
Document
DRM160, Window Lift and Relay Based DC Motor Control Reference Design Using the S12VR Microcontrollers
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