Learn About The Drive System In The Car

A powerful engine should always come with matching drive system for transmitting power to the wheels. However, not always all-wheel drive also received a "quality" the same force, because each vehicle has unique characteristics to suit each different transmission methods.

So there are specific roles drivetrain how to operate the vehicle, and there are certain drivetrain characteristics like?

The effect of the drive system

Each car has a duty engine produces power and torque, but to transfer that power to the wheels making them operational, as the car moves, you need to have drive system. This structure as intermediate linkages to operate the vehicle at will. Depending on the technical characteristics and intended use of each type of vehicle which is not always all-wheel drive also directly receive automated mechanical energy, which is the point of difference between the powertrain.

Outline of the automotive drive system

FWD drivetrain front axle, rear axle RWD, 4WD and 4WD full-time 4-wheel drive AWD is currently actuators 4 most common cars today. There are also some separate drive system developed by car manufacturers, but are based on the four basic types. Here is the simple definition of each drive system:

   + FWD (Front Wheel Drive-): The two front wheels directly receive torque from the engine. Thus, wheel spin and traction assist affected rear wheel rolling by.

  + RWD (Rear Wheel Drive-): Two rear wheels receive torque directly from the engine, turned and thrust the impact caused the front wheel rolling.

  + 4WD (4-Wheels Drive): All 4 wheels are getting the power, but may be optional transmission mode to 2 wheels only through structural "tuck bridge".

  + AWD (All-Wheel Drive): All wheels are always getting the transmitting power from the engine.

Characteristics of each drive system

Because each drive system has its own advantages and disadvantages, so do not want to mount vehicles 4WD or AWD drivetrain, but also to rely on the requirements and the specific intended use.

FWD drivetrain front

Hyundai ix35

Currently, most of the models on the market are equipped with a front-drive system (70% of new car factory) instead of the rear wheel drive system as before. The cause stems from the transformation engine placement from back to front. Therefore, for the dynamic structure quickly gave way to the idea of ​​transmission to the front wheels simpler and less energy consumption.

When applying this dynamic system, manufacturers can cut more cumbersome structure, thereby lowering production costs, lighter vehicle also should enhance the ability to save fuel. The entire powertrain and the differential system are arranged in the same minimalist and compact mass, so very easy to combine with suspension, brakes, fuel lines and exhaust.

At the same time, putting the engine and actuators in the front helps rear space more broadly. 2nd row will be more comfortable in the car with other drivetrain components through floor flat, the luggage compartment volume increases also lower. Ownership of the advantages associated with the need to use, should not be too hard to understand when to be on the FWD sedans, small cars or even a few crossover / SUV.

However, as well as how to distribute weight should focus on the first part of the vehicle equipped with hard FWD drivetrain can accelerate faster and achieve higher stability. Lighter tail makes the car easy to lose steering when cornering or move at high speed because the rear wheel traction without higher should be easy to slip. In addition, when all oriented tasks, brakes, load or speed are put to the front wheels, parts will wear more quickly, which leads to reduced performance and operational safety.

RWD drivetrain rear

Kia GT4 Stinger

Rear axle drive system will have advantages and disadvantages as opposed to front-drive system. When most of the complex mechanical structure has been transferred to most rear, the car will achieve the optimal weight balance better, so the performance is more stable. Meanwhile, the front wheels have been freed will focus on the task navigation and steering. Uniform layout front / rear also help the department is not overloaded, suspension or brakes will have longevity and higher reliability.

Especially for sports cars and racing cars often have increased speed, sudden deceleration, the rear axle drive system is an ideal choice by extremely good traction. In addition, car users can save large amounts repair costs through separate structures, each department has been handling errors are independent, not accompanied by a detailed system related.

Obviously, RWD system also has certain limitations. When actuators and motors away quite complicated, the cost of production and assembly will be higher. The layout makes the move to the rear interior space narrowing, the appearance of more than causing increased vehicle weight, and comes with more fuel consumption. However, for those who love speed, driving experience, these disadvantages are not so important issues.

4WD 4WD system

2015 Jeep Grand Cherokee

Thanks to the biggest advantages is the ability to increase traction of the wheels that 4WD drive system used on the popular terrain vehicles. This dynamic system is increasingly perfect, if initially only be developed with the aim of conquering less flat terrain such as mud, steep, incline or pebbles, but now he has added extra traction on asphalt both average often paved so are becoming increasingly common.

In modern 4WD vehicles, the driver can actively switch modes depending on the driving purpose. When drivers press the trigger, the torque will be transmitted to all 4 wheels to help stabilize the vehicle moving. And in city road conditions or highways, power transmission from the engine to the front wheels only or later.

To possess the technical features such advantages Vietnamese, 4WD system requires a complex structure. Therefore, vehicles are often heavier weight, and fuel consumption increases. Most importantly, even the same model, the 4WD versions are marginally better rates than the remaining copies.

4WD system full time AWD

Mazda CX-5

Basically, the AWD drivetrain innovations with high technological content than 4WD, in addition to adding the center differential to minimize the difference between the two-wheel left / right to go on bad terrain. Power is transmitted to the wheels all the time instead of intermittently as 4WD, and no function switch to other modes.

AWD for maximum traction efficiency by distributing power between front axle / rear and between the different two-wheeled through the following behavior before / after. Thus, these vehicles are highly regarded AWD traction and helps the driver control the car easily in all road conditions, particularly during slippery road.

In all the drivetrain, the car equipped with AWD always have the higher fuel consumption. At the same time, because almost all adjustments are undertaken by computer so the car sometimes becomes tasteless for enthusiasts who explore. Because of the relatively high price of most of the automaker offers AWD as an additional option packages, or only on the supercar or luxury cars.

Source: http://www.carmudi.vn/journal/tim-hieu-ve-cac-he-thong-dan-dong-tren-o-to/

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