In this situation, we will discuss about the characteristics of vehicle for the ICC and Eevee, but
let's discuss about the force field characteristics of icy icy engine with vehicle vehicle is basically
mass.
If we applied the force, it will result in linear motion and it will attend certain speed.
So on x axis, that is the speed of the vehicle in kilometer per hour and on y axis, the applied force
to the vehicle.
This force is generated in the icy bay, the vehicle with the engine.
So this engine produced the force.
It is linear cylindrical, then it is converted into motion and tangential force applied to the wheel.
Considering the constant radius of the wheel, the tangential force is driving force that drive the
vehicle and result in the speed.
So that is what forces speed characteristic is represent a platform that is generated from the icy and
which resulting speed.
But.
I see engine cannot produce the very high starting torque for the Hill climbing without the arrangement
of variable gear, so we required the variable gear system to meet the both the requirement of starting
torque or the hill climbing.
And let's for the cruising speed, high speed operation and load load.
So to meet this requirement, we must have to use the different gear.
The difficult will, of course be characteristics is given.
The speed of the vehicle is kilometers per hour and force is in low.
So then is the maximum value this is for considering the typical value for the car you can see in the
first get, the vehicle can attain certain maximum speed.
But beyond that, it cannot reach the higher speeds.
So to achieve the speed, as we already know, we need to change the game from third to second, third,
fourth and fifth.
So fifth, get will the high speed, but the target will be less as per the requirement.
We require the variable gear arrangement in the engine with vehicle separate conventional vehicle.
We needed the variable gear.
If we block the engine speed versus the vehicle's speed, then for the different gear it will be look
like this.
Now on the x axis, that is the vehicle speed in kilometers per hour and maximum speed is considered
for, in this case, for understanding 6000.
And if you consider the gear arrangement, then first gear.
Second gear target for all gear makes it will remain almost six thousand for the engine speed.
But with the gear which transferred the talk from the.
Engine to the will and will speed will decide the vehicle speed, and so that vehicle speed is will
be change with maximum speed will depend upon the gear, but maximum engine speed for all it is seem.
So, yeah, it can develop the high court with the forget it, forget it can produce to hire vehicle
speed.
So the gear requirement is matched in case of I say vehicle and engine is not capable to directly provide
the various torque requirements during starting and high speed operation.
The engine cannot provide the all requirement of the vehicle during starting as well as at the high
speed.
So we must need to use the gear.
But.
Let's observe this fourth speed characteristic of electric vehicle, in this case, this force is produced
by the motor.
So what is the already?
So when we say the Ford produce at the South End, it is due to the dark and digital force multiplier,
whether it is and the talk is transferred to the vehicle.
So the gate arrangement yet again produced high starting top as well.
This is the constant region and then torque will reduce with the increase in speed.
This is the typical speed or characteristic you can see and thought if we consider the radius constant,
then we can see the force.
So if you consider the wind speed in R.P.M. or in the Iranian position, then we can also have the same
speed or characteristic of motor.
But here we have drawn the speed for speed characteristic of the vehicle.
So this is the speed of the vehicle in kilometers per hour.
And this force produced by the electric motor that drive the vehicle, the driving force to the vehicle.
And because in this case, we do not require the get arrangement because the electric motor that produced
the driving force is capable to produce the high starting torque.
As well as it can produce the high speed, so the benefit we will achieve with the electric vehicle
with compared to icey vehicle is that we do not require any more the variable gear system.
Still, I am not saying the careless operation, but I am saying fix gear and variable gates electric
vehicle.
We can have fixed gear system.
If we look at the fiscal system for the considering the induction model, I selected the typical will
up to speed in terms of R.P.M. Revolution Parmeno 10000 to R.P.M. and vehicles is 200 kilometers per
hour.
So in the fixed gear operation, because models capable to produce the high talk and the low speed with
the help of different electronic converters and dry opposition variable frequency drive the decision.
Different methods are there, which can produce the high starting target low speed without having the
variable speed get.
So what is the fix?
Gap is design is also easy and because this fix gap is generally Planetree type that the center is Sungai
and surrounded planetary set in stone.
So there is also a reduced complexity in design of the system because we need to match only the maximum
speed of Marter with the desired maximum speed of Wakan then.
It will remain the linear.
So what we need to design to all what folks get and we do not need to change gear as we are changing.
And I think in this week that this is the one advantage of the electric vehicle.
If we compare the variables perkier versus the fixed, Felgate admits, I see physical with compared
to electric vehicle that.
Propelled by the electric motor and we can fix Bill Gates system reduces the size, weight, cost and
overall complexity of transmission system.
As well as absence of changing offers, smooth driving experience, and it enhanced Rasmusson efficiency,
too.
We are not discussing about the girls operation, but get into mostly planetary gear system.
So hope you got an idea about the forward speed characteristic of the vehicle and the comparison of
see an electrical vehicle for their speed characteristics and fixed versus variable speed gear.