Why dismount requires getting off the sensor



  • @RK_d

    I think of the current sensors as safety switches. Like a lot of machines / equipment you need to push a button or hold a trigger before it will turn on. The sensors are an easy way to know a rider is there and the board should balance when brought to level.

    The dismount logic makes sense to me for two reasons. 1. If you have to jump off above 1 mph because a car is coming at you, you’re losing it down a hill, etc... you just take your weight off the sensors, board turns off. Regardless of the acceleration or incline or anything. 2. The logic also dictates that if you meet two simultaneous criterion (only one sensor engaged and <1mph speed), you must want to get off the board.

    The sensors are an on & off switch and kill switch all in one. Not saying it couldn’t be improved but I feel they covered the bases pretty well.



  • @skyman88 And all this without resorting to a remote! That's the elegant part. But perhaps for those that are really challenged to gracefully dismount, a small wireless remote can be purchased to act as a kill switch. I am not sure I would necessarily buy one but hey - everyone is different.



  • @rk_d said in Why dismount requires getting off the sensor:

    (1) from a stand-still roll the board more than a preset number of degrees in either direction. Default to 25' and allow the user to change in the app, for example, from 10' to 75'

    (2) from a stand-still, wiggle the board (accelerate in both directions alternately and very quickly) back and forth for a number of times that can be set in the app. Make the default 100 and allow it to be dialed down to as few as two times.

    (3) make a setting in the app to disable the board powering down based on the foot pad sensors. Note that this would require extra programming to prevent the board from running off without anyone on board. This is not a hard programming problem if you have an accelerometer and you can measure the effect of torque on the rotation of the platform (IE: measuring the angular momentum of the platform).

    What a load of gibberish.



  • I thought about #3 some more and I just don't see how that is going to work either. Assuming it has an accelerometer, by the time the board senses the OW has accelerated faster than what is possible with a rider onboard AND determined that the torque load is very light, the OW is already a launched projectile. Sure the motor would hit the brakes suddenly to compensate but it is already moving. Also if a rider goes down a small depression on the ground, the OW will accelerate due to gravity and the torque will be low - thus it would think it should stop and launch the rider forward. Like I mentioned before, there are smarter people than me that can comment as to the feasibility of these ideas but I sure don't want to be the human guinea pig.



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