Automotive audio systems used to be rather simple affairs but today with pure digital audio sources such as the internet and smartphones, the game has become more complex. fortunately the basic engineering of high-quality sound reproduction hasn’t changed and good speakers and amplifiers are the foundation of all high-performance sound. in this article we will quickly explore the components and features of today’s automotive audio systems.
head-units - they used to just be called “the radio” but today the component that sits in your dash is called the “head unit”. head units used to be just one piece too but today you are are likely to see the main unit separated from the display part. when checking out a new car, spend a good amount of time looking over the display and if it has touch screen controls make sure all your basic audio functions are easy to see and control.
radio features - all car radios have basic features such as seek and scan tuning and the abi...
As humans we strive to attach meaning to all the things around us. this allows us to interact with our physical world in consistent ways. however, funny things can occur during this process and the generation of myths is a good example. in our need to understand things, even our cars get myths attached to them. here are several automotive myths that refuse to die:
red cars cost more to insure
really? why are they more expensive to insure? as the myth goes, “because red cars are involved in more accidents!” well, have you ever bought insurance for a car? was there any point where they asked what color the car was when you got a quote? insurance agents love this one and get asked about it all the time. from an insurance point of view, car color makes no difference!
premium gas gives you more power
wrong! premium gas is simply less volatile than ordinary gas so it the gas of choice in high compression engines. using it in your lower compression automobile would be just ...
Bluetooth is a mature technology and has evolved far beyond what was originally planned for it. today it has become the industry standard for hands-free telephone technology in cars yet it still has problems. miscommunication between vehicles and phones is still common. if you're buying a new car, the compatibility of your cellphone and your car is likely a very important topic. so to make sure your phone and your new car will get along, here is a checklist of items to look at before you make your purchase.
check the vehicle manufacturer's web site to ensure that your cell phone is compatible with the car you are looking at!
are the steps easy to understand when pairing up the devices?
does the phone reconnect automatically if the vehicle is stopped and restarted?
how easy is it to place a call using the system?
are the hands-free controls on the steering wheel or on the dashboard?
does the vehicle allow hands-free calling using v...
Before there were anti-lock braking systems (abs), drivers were told to rapidly pump their brakes when they felt a tire start to skid. today, you don’t need to do this because anti-lock braking systems do it for you. in this article, we'll learn about anti-lock braking systems and how they work.
the operational theory starts with the fact that a skidding wheel has less traction than a non-skidding one. the best thing to do when a skid does occur, then, is to slow your tires down by pumping the brakes and letting all the tires “grab”. abs systems do the same thing, they sense when a wheel is skidding during braking and then they pulse the brake automatically. you don’t have to do it. this not only allows you to stop in a shorter distance, you’ll be able to regain your steering control too. abs systems are made up of four components:
speed sensors – they sense when a wheel is about to lock up.
brake line valves - there is a valve in the brake line of each br...
Here’s a sobering fact: car crashes are the number-one killer of teenagers in the united states. contributing to this gruesome fact are behaviors such as speeding, lack of seat belt use, drinking, and, of course, texting. various automobile manufacturers have addressed this issue with innovative safety technologies and many of the systems they have developed are quite unique. in short article we look at systems from ford, gm, hyundai, and mercedes-benz.
the ford mykey system is one of the best and uses an innovative “multiple-key” approach. introduced in 2010, the mykey system has received a great deal of praise from the automotive press. the core of the mykey system is a second key just for younger drivers that can be programmed with “restrictions”. here are some of the features offered to parents:
sets off an alarm and won’t allow the radio to go on when a seat belt isn't fastened
sets a top speed up to 80 mph, with chimes that go off at 45, 55, or 65 mph....
There are times when your brakes need a little attention. these can be noises, a funny feeling in the brake pedal, maybe other things. in this article, we will look at some of the things that may indicate your brakes need your attention and should be checked out.
cars today have disc brakes. they function in much the same way as the brakes on a bicycle does. when you squeeze the brakes on your bike, a set of rubber pads grip both sides of the turning wheel rim and the resultant friction quickly slows down the bike. it’s similar with a car except that instead of rubber pads, a hydraulic system filled with brake fluid squeezes the spinning rotors attached to each of your wheels with special brake pads.
the first thing to keep in mind is that your brake pads will eventually wear down need to be replaced. what mechanics do is check the thickness of the brake pads to judge if that is the case. they should be some ¼ inch thick or more.
there is another indication that it ...
The “check engine” light is the little glowing indicator on your dash tells you something is wrong with your car. automotive professional often refer to the check engine light as the “cel”. if you drive an older car, chances are pretty good that you’ve seen your cel light go on. in fact, a recent carmd survey suggests that roughly 10 percent of all vehicles on the road have their cel on now. but what causes that light to turn on? based on an analysis of 160,000 repairs by carmd, here are the top 8 reasons a cel can turn on.
1) faulty oxygen sensor: o2 sensors measures the amount of oxygen in a car’s exhaust to help the car’s computer inject the appropriate amount of fuel into the engine. a failed sensor can throw off a vehicle’s mpg by as much as 40 percent.
2) faulty catalytic converter: generally the catalytic converter fails only after something else goes bad and the engine’s exhaust becomes laded with oil or raw gas. think bad piston rings or a malfuncti...
Maria sharapovam a tennis superstar who born in russia just signed a 3-year contract with great company, porsche as a brand ambassador. it is a position which will be in global promotion as a representator for the german auto company. this contract is not new for here as she signed land rover 3-year promotion contract in year2006.
ceo of porsche ag, known as matthias mueller, explained during disclosing car announcement that maria sharapova is very well-known athlete. via stylishness and power, she combined all topmost performance in car. precisely, these are such qualities which involved in our manufactured sports cars. for porsche development, her personality is bet fit. she has gained much importance all around the world.
in stuttgart, car manufacturer are based and sharapova came back there in porsche to protect her title i.e. “tennis grand prix”. she won porsche 911 white color there in previous year and further made mind to achieve “french open” title. acco...