I imagine dabbling with simple conversion ICEV-to-EV at scrapyard prices (apart from a modern battery of course)
old-tech ie crude control of a wound-field motor is made viable by driving through ICEV automatic transmission ....
https://www.industrial-electronics.com/ ... _2n-s.html shows (at bottom) eventual reduction in torque at high load
torque reduction at high load/low rpm (like an ICE) is how the torque converter naturally holds the motor rpm ....
ie the motor torque is proportional to the motor-supply voltage (controlled by a pedal and by switching)
motor torque fall-off as current draw increases with load is due to increased armature flux weakening the field flux ....
this armature reaction happens with any wound field (and weakly with a permanent magnet field)
AR is unfashionable but does somewhat help motor behaviour at high load to be suitable for vehicular use
the combination of automatic transmission and electric motor behaves essentially like an automatic ICEV
selecting discrete supply voltages using switches (& part-time continuous voltage control) makes a driveable car
trains switch resistances and/or field connections in many steps (no torque converters)
but we can also switch battery voltage - and resistance losses even in eg shunt-connected wound fields are quite low
driving was always influenced by ICE/transmission characteristics .... but we only now admit this (to praise the EV)
no need to admit anything with my old-school EV around !
