Friday, November 20, 2009

The innard story

The best part of buying a car is getting to know how the system works.I mean , yes , driving is fun ..especially on highways but for me the real excitement is in visualizing the system . I mean its like this. ..Suppose i press the accelerator...I visualise it as pulling a fuel rack that opens a pin in a slider , this pin regulates an orifice which in turn increases the fuel into the carbouretor, and in turn the injectors.
That makes perfect sense to me.
But wat is more interesting to me are the way the electrical connections are routed . This I had a chance to observe when the car showroom was fitting my car with music system , power windows etc etc.

Power Windows-Firstly, its not as complex as I thought it to be. When you open the inside cover of your car door the entire paraphernalia is right on front. The windows actually rest on a padded cross jack. This cross jack has a semicircular wheel attached. So when you operate to roll yout windows up or down you are actually operating this semicircular wheel which raises the jack.
Now lets assume you have a motor and a microswitch which does the same ..i mean rotating the semicircular wheel..Voila ----Power windows

Central Locking- This is slighltly more elaborate. Because this requires a mechanical connection between the actuating motor(its basically a solenoid) which pulls the lever of the lock . The trick is in connecting all four doors connections to one box(its placed on the front right door) . This box is operated by RF signals from your remote/Central locking key. Of course there must be a encryption in the signal or you could be opening up the entire parking lot ;)

Music System- This is a piece of cake. Its like putting a DVD player in your CPU slot. Jut remove the dashboard cover and plug it in. The tough part is in wiring the speakers right. White cables are already prelaid from the system JB to all over the car. If you lift the covers at the side of ur feet(outer) you will find a line of white and orange wites..these are speaker wires. And yes there are extra wires in care you want an Amp inbetween..AWESOME isnt it?

Next time a write up on engine Servicing..But then I have to complete 1000 kms (already reached 450 in 4 days)..SO lets wait

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