So, here are a few words about the electricity in the vehicle.
This is a hybrid vehicle. Ford Fusion. And it has a battery here.
It basically supplies all of the electricity to the entire trunk
This is its positive terminal, it passes to this fuse,
This is the main fuse.
From there, it passes on to this rotary switch,
This switch has two positions:
This specific one has four, but most of our new switches have two positions,
Off and on.
With it, we can toggle whether to send power to the PDS,
or send power to the components.
from the fusebox.
There are two ways that things connect for us.
That things connect to the car.
One way is the fusebox, which is a box of fuses with positive and negative nodes,
So this switch
is what controls whether power will be channeled to the components
or not.
The electricity from the battery.
So we have two components that are responsible for distributing power in the car.
One is the PDS, which we'll elaborate on in a moment,
and the first is the fusebox. The fusebox is just a box with positive and negative ends,
and from there, the power flows to a number of components...
that always receive power, regardless of the state of the PDS.
So there's the master, the slave, the Policy PC,
and the AVEPM.
These four components constantly receive power...
but we are able to control when they turn on or off
based on the ignition.
Here you can see that there's ignition, plus and minus.
The plus and minus come from the fusebox, and the ignition is connected to the PBS.
That's how it happens in these 4 components. In other words, once you move the switch to "on",
the computers will always receive power, but they won't necessary turn on,
because they aren't receiving any ignition signal in order to turn on.
So now we are behind the seats inside the car,
and this is where we can see the PDS.
The PDS... this is the master PDS, and this is the slave...
Why master and slave? Because the settings for one of them can apply to the other one.
and all of the components get a plus and a minus...
except for the components we discussed earlier, which are the master, the slave,
the policy and the AVEPM,
and it's only their ignition that's connected here.
There are 12 channels in each PDS
Soon we'll see them on its screen, how we control turning them on or off.
But the PDS gets power from the battery...
and that is how we can control whether to turn the connected components on or off.
There are components that don't get 12...
They don't get 12 volts, they need to get 5, or 19, or 24...
and that's why we have transformers that do that for us.
The positive and negatives sides from the PDS connect to the transformers...
and other cables come out of the transformers, which are connected to their designated components.
As I said, there are all kinds of transformers...
at different voltages.
Now we can, after understanding how it connects, how it goes from the battery to the main fuse
and on to the switch,
it comes here from the switch, supplies power to the PDS,
through the transformers, until the power reaches the component itself.
The PDS is controlled using its screen, which is on the armrest,
You open the armrest, and you can see a small screen, as we saw,
we have a master and slave...
each has 12 channels, and through those, we decide whether to turn on or off...
for instance, if I want to turn on the fans, I can swipe to the PDS
that the transformers are connected to and turn them on.
and they start working, and, of course, I can turn it off... the same goes for all components.
It's important to note that there are components here that get power
the moment we tap the button, and there are components for which we only activate ignition.