Hey all. I recently reconverted my Ford Ranger. It had an ADC 9" series
motor connected to the stock transmission, Raptor controller and 144v
pack. Now it has a Hyper 9 HV and controller, and a 160v pack. The Hyper
9 is connected to a TorqueTrends single-speed gearbox.
For the most part I'm very happy with everything, especially since my
power consumption has gone from about 2.7 to 3.6 miles/kWh but it feels
to me like I have a problem at the low end. In normal driving the truck
accelerates like my old '64 Beetle used to. That's okay but it's a real
problem going up a hill. My driveway is rather steep and the truck can
only manage about 10mph going up the hill. If I stop on the hill it
won't move at all. Nor will it back up the driveway.
According to the torque charts from Netgain compared to the ones from
ADC, the motor should be plenty strong. I drove almost all the time in
2nd gear which was 2:1 and the TorqueTrends is set to 1.9:1 so there's a
little penalty there. I am thinking about changing the rear end from
3.73:1 to 4.11:1 which will help get the gearing back.
But it feels to me like the issue is that the controller is SLOWLY
ramping up the current when I step on the accelerator. When I turn in
the driveway I can put the pedal to the floor and the battery amps don't
climb above 100 until I'm nearly at the top--about 6 seconds later. If
I'm driving at 20mph and stomp on it, the amps will zoom right up to 400
and the truck accelerates nicely.
Does anyone know of a setting in the controller that can tweak the
current ramp up speed? The current limit page shows 100% across the
entire RPM range, so it has to be somewhere else. The throttle page
shows that I'm getting full pedal travel. I'm not looking for burnouts
but I'm dreading the day I have to stop on a steep hill on a real
street. Thanks for any help.
--Rick
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