An automotive sunroofs, typically constructed from tinted glass, serve as a movable panel that offers the flexibility to be fully or partially opened or closed, allowing natural light and fresh air to infiltrate the vehicle interior.
Cars and trucks equipped with sunroofs, now often marketed as moonroofs, feature a control system operated by four distinct or combined switches. Two switches manage the full opening or closing of the roof, while the remaining two regulate partial opening or closing.
Ensuring accurate detection of the fully open or closed positions is achieved through the use of two Reed Sensors positioned at the end points, each equipped with a magnet affixed to the moving roof rail assembly. For precise control of partial roof movements, a reed sensor and a multipole ring magnet are permanently mounted within the actuation range. A vane, integrated into the roof belt assembly, intermittently interrupts the interaction between the reed sensor and magnet with each rotation of the roof motor.
The microprocessor receives a series of intermediary pulses during the sunroofs operation, allowing it to calculate the exact extent of sunroof opening or closure. By utilising knowledge of the predetermined number of motor rotations required for full roof movement, the microprocessor accurately predicts when the sunroof will reach its fully open or closed state. This real-time feedback mechanism provides drivers with precise control over the sunroof’s positioning, enhancing user experience and convenience.
Molded Reed Sensors, featuring meticulously controlled sputtered coatings, excel in pulse counting applications, ensuring reliable performance in monitoring sunroofs. Through the seamless integration of advanced sensor technology, automotive sunroofs deliver enhanced functionality, comfort, and safety, enriching the driving experience for users.
🧰 Application Classification
Applications are classified as Position Sensing, Pulse Counting, Electromagnetic or Relay, Temperature Sensing or Magnet Biasing types. This application is classified as follows and the link gives more information on best practices to help select the most suitable AT band and matching magnet.
✅ Recommended Products
The Reed Switches and Sensors used in this sunroof application need to be robust, durable and efficient in meeting a high life expectancy. Our engineers work hard in life testing our products under various conditions, and our intention is to ensure end product durability and life. Although we wouldn’t want to restrict any of our products for use in only certain applications, the recommended products for use in this application are listed below.
