Correction #351 number :
https://en.wikipedia.org/wiki/George_Constantinescu#/media/File:Constantinesco_Car.jpg 5 hp ,but
https://simanaitissays.com/2018/04/01/george-constantinescu-scientist-engineer-inventor-automaker-part-2/like by the french 2CV,fiscal horsepower ,not physical-technical :
The Constantinesco automobile, manufactured in France
1926–1928,......
The Constantinesco automobile engine was a two-stroke design with two vertical cylinders between which nestled the torque converter. This water-cooled engine displaced a mere 494 cc and produced 5
taxable hp.
small two cylinder engine comparison
https://www.bonhams.com/auctions/19391/lot/120/1925 BMW 494cc R32Friz's masterwork 486cc flat-twin gave 8.5 horsepower, good for a top speed of about 60 mph, plenty for the roads of the day.
the given 170 Nm torque ic engine to convert in KW electric is RPM dependent = velocity :
https://x-engineer.org/automotive-engineering/internal-combustion-engines/performance/power-vs-torque/http://x-engineer.org/wp-content/uploads/2017/07/Tightening-torque-at-wheel-bolt-300x270.jpg?c4395d&c4395dhttps://www.engineeringtoolbox.com/electrical-motors-hp-torque-rpm-d_1503.html "full torque"
for IC engines :The
full load engine torque curve T
e [Nm] is characterized by four points:
T
0 – engine torque at minimum engine speed
T
max – maximum engine torque (peak torque or
rated torque)
T
P – engine torque at maximum engine power
T
M – engine torque at maximum engine speed
for electric motor "full torque" :
3450 RPM +- 170 Nm 62 KW
2000 RPM +- 170 Nm 35 KW
1750 RPM +- 170 Nm 32 KW
1000 RPM +- 170 Nm 18 KW
500 RPM +- 170 Nm 10 KW
next :
torque definition :
https://www.researchgate.net/post/Is-the-torque-output-of-the-motor-unique-for-an-electric-motor-with-a-specific-power-ratingmaximum torque
rated torque
When "inventors" plays with numbers,without showing these claims in real world application,like here :
https://patents.google.com/patent/DE4031920A1/enhttps://patents.google.com/patent/DE10011074A1/enA car with an electric motor (
1500 watts, 4000 rpm)
using a conventional battery-set,instead :
"..... which gets its energy from the extra built in the engine compartment Power generator (generator with 6000 watts of power) takes and moves. .....
This ensures that a car with a low overall weight can drive
up to 120 km / h ( without refueling and consumption is zero. )
Average 40 Km/h and 3000 Wh= 3 KWh electric power consume ,okay ! Without extra appliances as load,heater et cetera !Assuming 600 Kg total weight !
Compared :
https://www.researchgate.net/post/How_much_torque_is_required_to_move_a_300_kg_vehicleSulaymon Eshkabilov North Dakota State University
The Electric car making 40 kmph with E-motor of 1200 W .....
and
Martin SchulzInfineon Technologies
Dear Ambar,Here is a result of an experiment conducted just for you:
I tried to move my personal electric vehicle at 40km/h, observing what power is needed to do so.Outcome:
In even terrain the car consumes more than 3kW to maintain 40km/h.Accounting that the weight is 1200kg and power to overcome friction is four times that of a 300kg vehicle, about 1.2kW are needed simply to overcome friction.This also means, about 2kW are needed to overcome air drag.The car is Volkswagen Golf III and in case your vehicle has to achieve 40km/h with only 1200W, you would have to get down to less than half the A*c
p-value.