I am trying to come up with a formula to use with my labview program that will calculate wheel torque required to move a vehicle with some given variables. I have vehicle speed, vehicle weight, % grade or angle, tire diameter. I am trying to create a dynamometer that can determine proper motor selection based off these vehicle characterics. So if i put in a certain grade and speed, the motor will either accelerate through it or it will start back driving based off what torque my dynamometer is holding back the motor. Thanks for any help!