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  1. ctirad

    Is it possbile to add sin/cos encoder to the HUB?

    Anyone tried to add sin/cos encoder to the standard HUB motor? It is even hypothetically possible? We have a long standing problems with the Sevcon Gen4 + QS motor (hubmotor wih halls). The problem is the Sevcon often (depending on the actual angle of the motor) misreads the halls at zero and...
  2. ctirad

    Sevcon Gen4 directional throttle and other questions

    Hi all, I have a couple of questions about the Sevcon Gen4 that are not clear from the manual: 1. It is possible to set the directional throttle for the variable regen (Vectrix style) and also as an forward/reverse throttle (when a vehicle is staying) in the same time? 2. How to properly...
  3. ctirad

    Rewinding 4kW scooter motor options

    Hello, I have HUB motor that needs to be rewinded, because of shortcut to the stator body. I'd like to make it faster, because the current Kv allows the speed of 75km/h at 72V, but I'd like to have at least 90km/h. However, after studying some motor related materials, I'm not sure if it is...
  4. ctirad

    Hua Tong 18FET controller EH22 board

    Hi, i think this kind of the controller was not discussed here. It looks Hua Tong controllers are very common nowdays, probably more common than the "infineon" ones. It would be great to have documented all the features, pads and programming protocol. This particular one is rated...
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