Let's understand the characteristic of Wacol.
If we look at the vehicle as a device, as we have done the simulation in the previous session, we
know that if we apply a certain amount of TARP, the vehicle will achieve the final steady state speed.
It can be represented in kilometers per hour or meter per second.
So this vehicle dynamic model will give us also the dynamic behavior and response during the transition
from the zero to certain stage to speed, how a solution will be and how it will achieve the steady
state speed.
So the law to the vehicle or we can see the opposing force to the vehicle at the drag force and friction
and the opposing force and may depend upon the mass.
So this opposing force are called the lower to the vehicle.
When we apply the certain amount of thought, it will result in certain speed.
As we have told the data, our speed and dark as we look up by performing different tasks in food and
medicine at different speed output from the simulation model that we have up in the previous session.
And from that lookup table, we also plotted this graph.
If you represent this characteristic in the group plot that in the x axis, that is the top that would
apply to the vehicle model and spirit that we measured.
So we generally use X Y block where X is the excesses represent the independent quantity and Y axis.
We plot the quantity which is dependent on the x axis.
Speed is dependent upon the target in the vehicle.
So if we take any point of consideration.
So let's see when we apply to continue to monitor this steady state we're at, you, by the way, will
be around 90 kilometres per.
But if we plot also the dynamic response, the speed will increase something like this, as we have
observed in X-axis.
Yet it is time and Y-axis again, the speed.
So this point represent only the steady state speed.
So if we look at the speed or characteristics, it does not count this dynamic portion.
But still, it is good enough to analyze the different matter and its characteristics with this electric
vehicle model.
So the speed characteristic is only the steady state value for the applied dot.
To the vehicle now, let's look at the vehicle from the different vehicle as law to the electric motor.
So when we look at the law to an electric motor, it's opposing force to the water speed.
So you're the dark is lower, is the opposing quantity to the motor speed and motor need to produce
a certain amount of talk to meet the requirements by the law?
So if we consider that it's generated by the motor, then what we require the how much speed to achieve
to achieve desired speed, we require the minimum dark input.
To the vehicle or to the law, if we consider vehicle as a law, we can change your statement like this
for this vehicle, we're required to achieve a certain amount of speed and to achieve DSB, we require
minimum amount of thought.
So simply same data that we used to plot the previous speaker characteristics.
If we reverse and if we plot the car correctly, if we plot an exact speed and on Y-axis target, the
same characteristic will look like this.
So it is called the lower characteristics.
A vehicle or vehicle the law to the electric motor.
This will be utilized in the next section of Electric Motor Drive, but if we understand this characteristic
so it will give us an idea about suppose to attribute the speed of 80 kilometers per hour.
With this vehicle model to to the speed of 80 kilometers per hour, we required the minimum.
Remember, that is the minimum torque apostasies.
Thirty eight Knewton meter run this characteristic.
So to achieve the 80 kilometers per hour of speed.
Really quite minimum, 38 Knewton with enough talk, any talk, less than 38 Knewton meter will not
result in the speed of 80 kilometers per hour, less so.
Yet also the dynamic part is not included.
But this top speed characteristic will be helpful and understanding its behavior as a lure to the electric
motor.
When we combine the characteristics of electric motors to the electric vehicle model, when we combine
this vehicle load characteristics and electric motor characteristics, we will have a certain analysis
and idea so that it should be clear and there should be no doubt about the speed or characteristic of
a vehicle and characteristic of a vehicle as a.
So from the data point of view, both are the same.
But when we do the analysis, we use this characteristic of the vehicle as a lure in the next section
of electric motor drive.