Uve's Electric Vehicle Calculator Equations

totalBatteryWeight = numBatteries * batteryWeight;

totalChargerWeight = chargerWeight;

totalControllerWeight = controllerWeight;

totalMotorWeight = motorWeight;

weightAdded = totalBatteryWeight +

totalChargerWeight +
totalControllerWeight +
totalMotorWeight +
miscWeight;

totalWeight = weightAdded + curb_weight - weightRemoved;

torqueMult = 840.34 / revPerMile;

rollingForce = (totalWeight * (rr + bs)) * cos (atan (incline/100));

inclineForce = totalWeight * sin (atan (incline/100));

drag = (dragCoefficient * frontArea * pow (speed, 2))/391;

windFactor = (((.98 * pow(wind/speed, 2)) +

(.63 * (wind/speed))) * windFactor) -
(.4 * (wind/speed));

windDrag = drag * windFactor;

dragForce = rollingForce + drag + windDrag + inclineForce;

totalDrag = dragForce * torqueMult;

hp = (totalDrag * speed * revPerMile)/ (315120 * drive_efficiency);

torque = totalDrag / (gearRatio * drive_efficiency);

motor_rpm = (speed * gearRatio * revPerMile) / 60;

motorVolts = (rpm * motorD) /

((motorA/(pow (torque, motorB))) + (motorC));

motorAmps = pow ((torque / motorK), (1/motorN));

batteryVolts = voltage;

batteryPower = motorVolts * motorAmps * (controllerEfficiency /100);

batteryAmps = (power / voltage) / numString;

range = (puekertNum/ pow (batteryAmps, puekertExp)) * speed;

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