What’s the difference between ‘4-wheel drive’ and ‘all-wheel drive’?

So far, inevitably some people still confuse the AWD drive system (all-wheel drive) and 4-wheel drive system (4WD). In fact, the car uses 4WD drive was produced before the trucks and cars use AWD for a long drive. So the difference between dynamic system is this?

AWD system operates on the principle of torque force is transmitted to the all-wheel continuously in all operating conditions and this system allows to create the disparity in speed between front and rear axles depending cake on topographic. Meanwhile equipped 4WD vehicles running on both axes at the same speed and often drive system operates effectively when the car goes on road conditions uneven. If not, the tires and the driving shaft will quickly wear and reduced life expectancy.

At the corners, the 4WD system proved ineffective and easy to lose the ability to control especially if the car is running on the runway of snow or unfavorable because then, a hard axis of the car locked, sliding on car into the road when cornering. Meanwhile, AWD drive system allows distribution of power in a flexible manner such cases to the velocity of the other front wheel with the rear wheels, thus helping to drive safety and stability than avoid slip .

Currently, the modern AWD system was developed on the principle of additional front-rear guide. Typically vehicles equipped with the new AWD system that’s 2013 Ford Taurus AWD system proved effective support their ability to balance and control the speed of vehicles in all conditions of terrain and different situations.


Additionally, with integrated sensors in intelligent AWD system helps control and risk calculations skid case throughout the journey and proactive system allocation ratio torque force to all four wheels, front discovering cake slipping. Electronic central shaft can intelligently adjust its flexible torque from front to rear axle shaft (even entire energy transmitted to an axle). Also, when there is combined with the control system’s advanced traction Ford (Advance Trac) and system stability control shaft (Roll Stability Control), the system has the ability to allocate resources to the two the right and left wheels in a flexible manner.

Meanwhile, Acura AWD technology to develop in a direction completely different from when making feature vehicle stability control system on AWD. Instead of deceleration or braking one wheel to help the body redirects the integrated system helps optimize operational efficiency while controlling the car’s direction. This system called Super-Handling All-Weel Drive – AWD drive system intelligent. Instead of the wheel speed brake side crab ring center, AH-AWD system increases rear wheel speed to push the car hugged more accurate cornering and speed and operational efficiency of vehicles while ensuring stability.

Specifically, the mechanism of action of intelligent drive system are as follows: First, the rear wheel of the vehicle is accelerating faster than the front wheels. Second, only the rear wheel is accelerated. Carbon fiber shaft to the front axle speed to the planetary gears mounted behind the front axle, while the torque distribution ratio of 1: 1, but if the car navigation signs, the microchip Prince will use the oil pressure from the pump shaft after the clutch disc to make gears rotate and push the wheel following acceleration, whereas the rear axle can rotate at a speed faster than the front axle is 5%. In fact, the torque transmitted to the rear axle can up to 70%. Acura drive system not only helps control traction but also stable car balance when running at high speeds. Similarly, Ford’s AWD system, the present system in the Acura and GM are working without the impact of the driver.

The system’s entire cake guide help optimize control and safety of the vehicle. The technologies and materials used for manufacturing systems are now increasingly being improved help system with a structure lighter, smaller and more efficient. Subaru and Audi are two automakers have many years of experience in production and development of this powertrain technology, however, other manufacturers such as Acura, Porsche, Suzuki, GM, BMW and Mercedes-Benz are now apps use and dissemination of this technology on its newer models.

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