We are developing an autonomous vehicle as a university project. And we want to know if the parking brake cable is broken. I searched this on the internet. But I didn't find anything. Is there a special sensor that can detect it or how can I do it?


Check if the parking brake actuator is not in the "open" position - a micro switch will do that.

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  • Thanks this gave us ideas. But we need something safer. – umuryasinalper Apr 25 '19 at 13:14
  • "Safer" what do you mean? Checking the actual lever that actuates the parking brake is as close as you get... – Solar Mike Apr 25 '19 at 13:15
  • i mean, we want something that doesn't deteriorate for too long and that's resistant to vibration. – umuryasinalper Apr 25 '19 at 13:22
  • @umuryasinalper - I'm not sure how a micro-switch doesn't fullfil that mission? They are used all the time where vibration is present (all over non-autonomous vehicles) and they are quite resilliant, lasting many years if not the complete life of the vehicle. – Pᴀᴜʟsᴛᴇʀ2 Apr 25 '19 at 14:31
  • @umuryasinalper Then use an magnetic sensor onto the lever instead of a microswitch. Compare that with the position of the handbrake – Martin Apr 25 '19 at 19:28

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