Posts Tagged ‘all-wheel drive’

What You Need To Know About All Wheel Drive Systems On Passenger Vehicles

Saturday, November 19th, 2011

The basic idea behind all-wheel drive, or AWD for short, is that all four wheels are powered by the motor at all times. The simple fact is that most AWD cars only deliver energy to the back tires when the front wheels have reduced traction.  Even though the name may be inaccurate, AWD’s capability to send energy from wheels that are slipping to wheels with more traction, has significantly enhanced the security and operation of many vehicles.

An AWD system could be a very practical feature in cars, trucks, and SUVs that are driven in very challenging road conditions. New designs give people more choices than ever and knowing the rewards is important in deciding whether or not to consider buying an AWD vehicle.

The greatest benefits of AWD systems is their fantastic traction. Because all the wheels have the ability to propel the car forward, it can carry on even when driving with one or two wheels with reduce footing due to slick areas such as mud, snow, ice or loose gravel. Some AWD vehicles only transfer power to the back wheels if the front ones start to slide, and even this partial application is beneficial since it gives additional traction when needed most.

On the negative side, all wheel drive vehicles cost more to buy, are generally less fuel efficient and can be more expensive to maintain, increasing repair and maintenance such as brake service costs.  It’s also important to realize that an all wheel drive system is not going to make your car absolutely accident proof.Even though an AWD system will help with traction for moving forward, stopping quickly is another matter.So, it is still important take the time to drive slowly and carefully when the road is slippery..

You can even get a minivan with AWD. Minivans, despite losing popularity since the nineties, are still great family vehicles with their easy opening doors, large passenger number potential and luxury and ease options. If you are looking for the best minivan to haul your family around in, you may be considering a style with an AWD system for increased traction on difficult driving surfaces. AWD is much like 4WD since all the wheels have identical torque to propel your car down the road, but all wheel drive minivans can be more secure when driving on slick streets. Don’t forget to check which vehicles have all-wheel drive before going shopping for a new minivan.

For an example of an AWD minivan, check out the Toyota Sienna as several models have optional AWD.  Make sure you don’t try out the base model since it is not equipped with an all wheel drive system.You will be glad to know that on the safety side, theToyota Sienna has shown some of the best results for minivan collision tests.  And with the add-on of AWD, this minivan would be a highly safety-conscious choice for your family. An added benefit is that the Sienna is a also great used car. But don’t forget that all wheel drive has always been an option for the Sienna. Vefify that the model you are considering has all-wheel drive before you go ahead with the purchase.

What Is The Difference Between Cars 4WD And AWD?

Friday, May 28th, 2010

Whether you’re in the market for a SUV, pickup, or car, you’ve probably come across this question at one point or another: What’s the difference between 4WD and AWD? Both distribute power to all four wheels of a standard vehicle, as opposed to the standard front- or rear-wheel drive of 2WD vehicles. The power of the added system could be beneficial if you live in a place where you are driving in mud and snow. Many consumers, however, don’t know what the difference between the two is.

Even though they cost more, 4WD and AWD could save you

While a vehicle with either of the two systems is more expensive than a two-wheel drive vehicle, you’re less likely to find yourself stranded on the road during less-than-optimal driving conditions, whether caused by weather or environment. Get more auto loans for a safer 4-wheel drive care or get something less: the choice is the buyer’s. You can get help choosing between 4WD and AWD by the summary from How Stuff Works below.

4WD only part time – throw the switch when it’s needed

In attempting to answer what’s the difference between 4WD and AWD, start with part-time 4WD. This is the basic way 4WD is offered; there is a switch that switched between 2WD and 4WD. Excessive mechanical wear can be avoided as long as 4WD is avoided on pavement. Some vehicles in this class have a basic 2WD/4WD toggle, and some have added options like 4WD High and 4WD Low (the latter and should only be used in extreme off-road scenarios). Newer part-time 4WD vehicles allow the driver to make a shift from 2WD to 4WD High while the car is moving but must be stopped before moving from 2WD to 4WD Low. Older part-time 4WD vehicles must be stopped before any such shift can occur. If you will only be using 4WD occasionally, then part time 4WD is the best choice for you. Frequent changes in the driving conditions that would mean a constant switch between 2WD and 4WD are both inconvenient for the driver and add a lot of wear and tear on the drive train.

When you want to keep it running – full time 4WD

This is a more advanced form of 4WD that can be left on without placing undue strain on the drive train. High and Low settings are available, as well as an automatic 4WD. With most vehicles, shifting from high to low while in 4WD will mean the vehicle needs to be completely stopped. Drivers who tend to drive under adverse situations more often can avoid the tedious 2WD/4WD switching and go with this full-time 4WD option.

No switch with AWD-4WD

All-wheel drive sends power to all wheels of the vehicle in a similar fashion to four-wheel drive vehicles, but a 2WD switch is typically not present. AWD locks the vehicles axles and automatically feeds power to all wheels on slippery roads. Most AWD vehicles are great for slippery roadway conditions, but are not intended for rugged off-road excursions. Certain AWD vehicles such as the Dodge Durango and Toyota 4Runner will offer a low-gear AWD setting that allows for tougher roads. AWD usually doesn’t add much weight to the car and is good for any weather condition.

Which is safer – 4WD or AWD?

Both are supposed better than 2WD but How Stuff Works says: that doesn’t mean 4WD and AWD are automatically safer. Drivers should keep in mind that while 4WD and AWD help acceleration, they do not help with cornering and braking. On wet, snowy roads, it matters little whether you have a 4WD, AWD or 2WD vehicle when it comes to maneuvering and stopping. Having good brakes, having a fine suspension, and using the right set of ties will be more important.

Article Sources

How Stuff Works

http://consumerguideauto.howstuffworks.com/your-ride-4wd-vs-awd-cga.htm