Automotive engineers and former Tesla employees [SuperfastMatt] Take a look at the infamous Tesla door handle design and its changes over the years (See the video below the break time). The original handle design consisted of many moving parts, switches and wires that were prone to failure. Strictly speaking, the door handle is located on the outside of the car interior. Although it will not be directly exposed to the natural environment, it will still experience extreme temperatures, humidity and condensation. The handle is so prone to failure, so that the cottage industry came into being to provide improved parts and replacement parts.
Over the years, Tesla has made various improvements and finally launched the latest version [Matt] Comments in this video. Almost all points of failure have been eliminated. Except for the handle itself, the only moving part is a magnetic sensor used to detect the movement of the handle (previously this was sensed by a micro switch). [Matt] I accidentally opened the control module and found an NXP programmable angle sensor ( KMA215 ). This all-in-one sensor can detect the angle of the magnetic field and report it via the automotive communication bus, which has become more and more common in the past decade: Unilateral nibble transmission (Sent) Also known as SAE J2716. SENT is a low-cost, transmission-only protocol designed for sensors to send data to ECUs.Check [Matt] Decode it on the oscilloscope and Raspberry Pi in the video-it looks very simple at first glance.
we agree [Matt]The conclusion is that the design of the door handle has been significantly improved in the latest iteration, and the question is whether the door handle needs to be retracted to one side.If you want to know more about SENT, please click here The tutorial was written by Tim White, an application engineer at IDT (now Renasas). this is not [Matt]First contact with Tesla door handles-as early as 2012, we reported on his project, which used one to dispense beer.thanks [JohnU] Send this reminder.