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  1. #1
    RC poster
    Join Date
    May 2012
    Posts
    3

    Unhappy tqi transmitter interference problems/jerky throttle

    Just got a new tqi 2.4ghz transmitter with 5 channel telemetry reciever combo. I've calibrated and linked to my castle creations SV2 esc wit no problems. Steering and throttle respond correctly. However when I set the car down on the pavement and hit the throttle the car seems to jerk toward then lose connection/power for a fraction of a second and then jerk forward again and again. After a few seconds of this behavior the car will respond normally even if I increase speed and distance,however, as soon as I realease throttle back to neutral/brake the problem starts happening again. Any ideas?

  2. #2
    RC Champion
    Join Date
    Jan 2012
    Location
    Toronto
    Posts
    2,326
    Recalibrate the TX to the RX, max throttle, etc..

  3. #3
    RC poster
    Join Date
    May 2012
    Posts
    3
    What exactly should I be calibrating? What settings or parameters? Fwrd, neutral, and reverse seem to be properly calibrated. But from a stand still and at low speeds the throttle is still very glichey. I can grab a fist full of throttle and it edges forward almost nonreponsive then out of nowhere shoots forward so qwick it does a back flip. Lol.

  4. #4
    RC Turnbuckle Jr. Jimmie Neutron's Avatar
    Join Date
    Oct 2009
    Location
    Alma, MI
    Posts
    12,283
    Standstill to low speeds is where you are going to experience cogging.... this is because it is not a sensored system; the ESC does not know the exact positioning of the rotor in the motor.
    Whatever it is I just said... I could be wrong.

  5. #5
    RC Competitor
    Join Date
    Mar 2012
    Location
    Melbourne, Aust.
    Posts
    69
    Have you got the speed control set for high speed timing?
    Changing it may help?

  6. #6
    RC poster
    Join Date
    May 2012
    Posts
    3
    My motor timing is set to "low". I called Castle creations today and they said the battery I'm using doesn't have a high enough discharge rate and that is what is causing the "cogging" or so they call it. I'm running a Venom 7-cell 8.4 volt 3000mah nimh. I never had this problem with the old sidewinder sct and I used the same battery .

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