1

00:00:01,730 --> 00:00:05,720

Let's understand the characteristic of Wacol.



2

00:00:09,350 --> 00:00:14,960

If we look at the vehicle as a device, as we have done the simulation in the previous session, we



3

00:00:14,960 --> 00:00:22,980

know that if we apply a certain amount of TARP, the vehicle will achieve the final steady state speed.



4

00:00:23,690 --> 00:00:26,920

It can be represented in kilometers per hour or meter per second.



5

00:00:27,980 --> 00:00:36,560

So this vehicle dynamic model will give us also the dynamic behavior and response during the transition



6

00:00:36,560 --> 00:00:43,130

from the zero to certain stage to speed, how a solution will be and how it will achieve the steady



7

00:00:43,130 --> 00:00:44,330

state speed.



8

00:00:45,650 --> 00:00:53,660

So the law to the vehicle or we can see the opposing force to the vehicle at the drag force and friction



9

00:00:53,810 --> 00:00:57,260

and the opposing force and may depend upon the mass.



10

00:00:57,890 --> 00:01:01,220

So this opposing force are called the lower to the vehicle.



11

00:01:01,610 --> 00:01:05,840

When we apply the certain amount of thought, it will result in certain speed.



12

00:01:07,720 --> 00:01:16,180

As we have told the data, our speed and dark as we look up by performing different tasks in food and



13

00:01:16,180 --> 00:01:23,020

medicine at different speed output from the simulation model that we have up in the previous session.



14

00:01:23,560 --> 00:01:27,790

And from that lookup table, we also plotted this graph.



15

00:01:31,480 --> 00:01:40,870

If you represent this characteristic in the group plot that in the x axis, that is the top that would



16

00:01:40,870 --> 00:01:44,390

apply to the vehicle model and spirit that we measured.



17

00:01:45,070 --> 00:01:53,800

So we generally use X Y block where X is the excesses represent the independent quantity and Y axis.



18

00:01:53,800 --> 00:01:58,210

We plot the quantity which is dependent on the x axis.



19

00:01:58,450 --> 00:02:01,600

Speed is dependent upon the target in the vehicle.



20

00:02:02,020 --> 00:02:05,740

So if we take any point of consideration.



21

00:02:08,860 --> 00:02:17,050

So let's see when we apply to continue to monitor this steady state we're at, you, by the way, will



22

00:02:17,050 --> 00:02:19,290

be around 90 kilometres per.



23

00:02:20,200 --> 00:02:27,520

But if we plot also the dynamic response, the speed will increase something like this, as we have



24

00:02:27,520 --> 00:02:29,440

observed in X-axis.



25

00:02:29,440 --> 00:02:33,240

Yet it is time and Y-axis again, the speed.



26

00:02:33,520 --> 00:02:36,200

So this point represent only the steady state speed.



27

00:02:36,790 --> 00:02:42,840

So if we look at the speed or characteristics, it does not count this dynamic portion.



28

00:02:42,850 --> 00:02:50,740

But still, it is good enough to analyze the different matter and its characteristics with this electric



29

00:02:50,740 --> 00:02:51,920

vehicle model.



30

00:02:52,990 --> 00:02:59,870

So the speed characteristic is only the steady state value for the applied dot.



31

00:03:01,670 --> 00:03:10,610

To the vehicle now, let's look at the vehicle from the different vehicle as law to the electric motor.



32

00:03:11,000 --> 00:03:16,360

So when we look at the law to an electric motor, it's opposing force to the water speed.



33

00:03:16,670 --> 00:03:26,030

So you're the dark is lower, is the opposing quantity to the motor speed and motor need to produce



34

00:03:26,030 --> 00:03:30,680

a certain amount of talk to meet the requirements by the law?



35

00:03:31,130 --> 00:03:38,870

So if we consider that it's generated by the motor, then what we require the how much speed to achieve



36

00:03:39,350 --> 00:03:44,510

to achieve desired speed, we require the minimum dark input.



37

00:03:45,710 --> 00:03:53,930

To the vehicle or to the law, if we consider vehicle as a law, we can change your statement like this



38

00:03:54,200 --> 00:04:02,290

for this vehicle, we're required to achieve a certain amount of speed and to achieve DSB, we require



39

00:04:02,450 --> 00:04:03,830

minimum amount of thought.



40

00:04:04,520 --> 00:04:09,910

So simply same data that we used to plot the previous speaker characteristics.



41

00:04:10,160 --> 00:04:19,790

If we reverse and if we plot the car correctly, if we plot an exact speed and on Y-axis target, the



42

00:04:19,790 --> 00:04:22,210

same characteristic will look like this.



43

00:04:22,580 --> 00:04:24,950

So it is called the lower characteristics.



44

00:04:27,280 --> 00:04:32,060

A vehicle or vehicle the law to the electric motor.



45

00:04:32,080 --> 00:04:41,580

This will be utilized in the next section of Electric Motor Drive, but if we understand this characteristic



46

00:04:41,660 --> 00:04:48,250

so it will give us an idea about suppose to attribute the speed of 80 kilometers per hour.



47

00:04:49,590 --> 00:04:55,350

With this vehicle model to to the speed of 80 kilometers per hour, we required the minimum.



48

00:04:55,690 --> 00:04:59,140

Remember, that is the minimum torque apostasies.



49

00:04:59,160 --> 00:05:02,780

Thirty eight Knewton meter run this characteristic.



50

00:05:03,510 --> 00:05:08,220

So to achieve the 80 kilometers per hour of speed.



51

00:05:09,180 --> 00:05:17,280

Really quite minimum, 38 Knewton with enough talk, any talk, less than 38 Knewton meter will not



52

00:05:17,520 --> 00:05:24,300

result in the speed of 80 kilometers per hour, less so.



53

00:05:24,930 --> 00:05:29,820

Yet also the dynamic part is not included.



54

00:05:29,830 --> 00:05:38,070

But this top speed characteristic will be helpful and understanding its behavior as a lure to the electric



55

00:05:38,070 --> 00:05:38,620

motor.



56

00:05:38,880 --> 00:05:46,950

When we combine the characteristics of electric motors to the electric vehicle model, when we combine



57

00:05:46,950 --> 00:05:52,680

this vehicle load characteristics and electric motor characteristics, we will have a certain analysis



58

00:05:52,680 --> 00:05:59,120

and idea so that it should be clear and there should be no doubt about the speed or characteristic of



59

00:05:59,130 --> 00:06:02,640

a vehicle and characteristic of a vehicle as a.



60

00:06:03,360 --> 00:06:05,940

So from the data point of view, both are the same.



61

00:06:06,300 --> 00:06:16,140

But when we do the analysis, we use this characteristic of the vehicle as a lure in the next section



62

00:06:16,260 --> 00:06:18,920

of electric motor drive.