Here are my preliminary results of the mechanical performance of my Super Soco TC in hilly terrain.
(values taken at maximum speed for each slope)
(measured values: Vmax, slope, mass, wheel radius, speed meter offset)
(fitted values: air drag coefficient, wheel drag coefficient)
(calculated values: torque, motor power, air and wheel drag power)
Interesting with the sudden fall in engine power.
But the engine should be able to rely on its high torque?
That the electric motor has maximum torque from the start (just like a steam engine), you was learned in school.
However, electric motors are non-linear over their speed range, for example, the inductance means that you do not have a linear rotation from 0 to maximum speed, but only within a certain speed range you can count on constant torque.
I have to admit the performance is one of the most disappointing bits of TC ownership
a slight headwind and a gradient and you have a queue of traffic behind you.
given the power and torque available it seems mad that they won’t allow you to trade range for performance when you need to
the TC has a torque of 115 Nm below 10 km/h. Taken the wheel radius 0.283m this means 115 Nm / 0.283m = 406 N acceleration punch, the equivalent force of 41 kg. With 2 batteries and a 92 kg driver, 195 kg total vehicle mass you have an acceleration of 406 N / 195 kg = 2.08 m/s², that is 0.21 g. You will gain every traffic lights acceleration on the first meters with the TC, in 1.3 seconds you drive 10 km/h. However, above 10 km/h it loses quickly its torque.