I made a vehicle using 4x350W BLDC Hub Wheels with hall sensor. The wheel is controlled using BLDC motor controller and using Arduino UNO for PWM signal (see the attached ). The vehicle is able to run at beginning and stopped suddenly. When I checked the BLDC controller, all four of them are not working any more. This is second time I had this issue. Last time two controllers were broken, I replaced them and test the vehicle again. IN the first 30min, the machine was running fine , and then it stopped with broken controllers.
See my connection map in the attached.