Tim, is it not torque/time = hp - which propels the vehicle?Tim.Wright wrote:Except that it doesn't start falling from low RPM.J.A.W. wrote:The fact that electric motor torque actually starts falling from low rpm - is what makes me doubt their racing pedigree..
Electric motors in use today have a rated current which corresponds to the thermal limits of the windings. This current is able to be delivered from zero until usually about 90% of the maximum motor speed. Only after this point does the torque, being proportional to the current, also start to drop.
At the end of the day, its the power/energy output which is determining the overall performance - not the torque. The discussion on torque is a lot of handwaving and ultimately irrelevant.
As shown by the dyno chart posted..
..a practicable/continuous electric mill torque curve demonstrates a steady decline from the get-go..
..sure the rpm chases it, but really, is it a bit like running uphill..