Freescale and Tongji University jointly developed the anti-pinch window lift reference design featuring the MagniV S12VR MCU. This anti-pinch window lift reference design demonstrates its functionality in automotive designs and is ideal for the development of power windows and sun roof systems. The reference design also includes the hardware for real door/window in-vehicle applications, as well as software including anti-pinch algorithms and low-level S12VR drivers.
Aimed at reducing time to market, this reference design leverages unique features of the MagniV S12VR MCU. In addition to helping reduce unnecessary external components, the reference design lowers the total bill of material (BOM), improves system quality and saves space in automotive applications through a smaller PCB.
- 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
- Fault diagnosis, indicating low voltage, over voltage/current/temperature etc.
- Low power mode (leveraging S12VR low power mode) to reduce power consumption
- 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
- Easy-to-control Graphics User Interface (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)
- Able to comply with relevant content in US Federal Motor Vehicle Safety Standard (FMVSS No. 118)