Archive for category Audi

A Guide to the Audi A3 Car

Taking aside the aesthetics of the car, the A3 of course has highly integrated technology, safety and luxury. It is one of the best Audi cars to check out.

The Audi A3 uses a 2.0L four cylinder engine. The term 2.0L, means that the engine size is 2000 cc. So for a four cylinder car, it means that each cylinder can generate about 500cc. The engine also features FSI direct injection, a feature that works to help with getting the vehicle to accelerate at a faster level by adding more torque onto the engine. The term torque refers to the pulling power of the engine. The higher the torque, the faster the car will go or the heavier load it can pull. A six speed transmission is offered that can be used in either an automatic or manual transmission mode. It also features the Quattro all wheel drive system. This works to alter pressure levels on the wheels for added control.

The shock absorbers use a magnetic ride suspension system. The viscosity of the shocks are controlled through an electromagnetic field. It helps to create proper damping forces. In other words this means a smoother ride for the occupants of the car.

In keeping with other Audi cars, the A3 features the Audi Concert sound system and Sirius satellite radio. The sounds system uses a CD player and a ten speaker sound system with a subwoofer. A DVD based navigation system is an optional feature that can be used here.

The Driver Information System is a very convenient feature to see here. It is used on the dashboard to monitor fuel economy levels, outside temperatures and other important pieces of data for the car.

There are all sorts of luxurious features available. The A3 features leather seats and a dual zone climate control system that works to create different climate levels for the front and rear passengers. Power windows are also a feature of this car.

Many popular safety features are also included. The rear door locks work automatically to protect children. An anti-lock braking system is used with electronic distribution sensors and the brakes come with ventilation assistance. Tyre pressure monitoring is also standard. This works to monitor tyre pressure levels and to warn the driver in the event that the tyres have too little or too much pressure. This feature is handy because we are all supposed to check the tyre pressures in our cars before driving off. Read the rest of this entry »

, , , , ,

No Comments

Audi A4 B8 Camshaft

The new engine under the hood of Audi A4 is 2.0 TFSI. It is a turbocharged 4 cylinder engine, derived from its successor, the 2 liter engine. Since its debut in the year 2005, it has been continuously voted three times as “Engine of the Year” by an international jury consisting of journalists.

The new 2.0 TFSI most important segment is the inlet camshaft. This inlet camshaft adjusts variably up to 60 degrees of crankshaft rotation and the two balancer shafts rotating with double the speed of crankshaft in the crankcase. This operation compensates the free-second order inertial forces and reduces the vibrations leading to a refined running.

The injection of the 2.0 TFSI demonstrates the innovative technology by Audi. The fuel is delivered into the combustion chamber through the newly developed injectors which have 6 holes in them. The result is a complete combustion, enhanced by the valves for Vortexing the injection. The cylinders are filled with air with the help of the water-cooled turbocharger. Optimized turbine and compressor wheels have increased the reaction time. There has been a change in the intercooler as well. It has a combination of high efficiency with low weight and smaller dimensions.

Audi also developed a new Valve lift system for the 2.0 TFSI engine. Unlike the 3.2 FSI, the new system facilitates variable control of the exhaust valve. With this change in the exhaust valve, Audi A4 reaches its maximum torque of 258 lb-ft at an engine speed of just 1,500 rpm which states the drastically improved system. The engine’s camshafts are provided with splines that carry the cylindrical sleeves. The cam elements are designed for two profiles – one for low valve lifting and the other for a full valve lifting. Metal pins are engaged in the spiral grooves on the sides of the revolving cam elements with the help of the electronic shift system.

The V6 engine’s inlet camshafts are provided with splines that carry cylindrical sleeves. These cam elements have two different profiles, one for low valve lift, and the other for full valve lift. Metal pins actuated by an extremely rapid electronic shift system engage in spiral grooves on the sides of the revolving cam elements and displace them by seven millimeters along the camshafts. Read the rest of this entry »

, , , , ,

No Comments