The Difference Between AWD vs 4WD

4WD is not on all the time, under normal conditions, only the rear wheels drive the vehicle forward, while the front wheels spin freely. To activate a modern four-wheel drive system, the driver has to push a button or pull a lever to engage it. But four-wheel drive isn't meant to be on all the time so you have to know when to turn it on and when to turn it off.

 

AWD is on all the time, and mostly used in cars, and the computer manages the system. Just going down the highway, the system will send most of the power to the rear wheels, for maximum fuel efficiency, if the road condition changes, such as rain or snow, the system adapts and evenly distributes the power evenly to all 4 wheels, so you have maximum drive grip, with little to no chance of wheel spin.

 

 

2WD Cars are less complex than those with AWD or 4WD, and their simpler drivetrains mean improved fuel economy in the long run.

 

In general, cars equipped with 2-wheel drive get better gas mileage than models that use all-wheel drive or 4-wheel drive. 

所有跟帖： 

• 4x4和4wd是一回事吗？ -二胡一刀- ♂ (0 bytes) () 04/29/2020 postreply 14:31:02

• 4x4 =4WD -萨克斯风- ♂ (363 bytes) () 04/29/2020 postreply 15:47:22

• How is 4Runner’s all time 4WD for Limited and part time 4WD for -Yangtze430030- ♂ (0 bytes) () 04/29/2020 postreply 16:03:25

• 我还看到过4x2, 那是什么东东? -二胡一刀- ♂ (0 bytes) () 04/29/2020 postreply 17:20:01

• 四个轮胎，两轮驱动。 -biglow- ♂ (0 bytes) () 04/29/2020 postreply 21:16:41

• 这这这。。。你逗我是吧。 -二胡一刀- ♂ (0 bytes) () 04/30/2020 postreply 08:43:07

• 放狗搜4X2，看是个啥结果。 -biglow- ♂ (0 bytes) () 04/30/2020 postreply 14:27:12

• 主要是奇怪为啥有人这样说，汽车还有两个轮子的不成。 -二胡一刀- ♂ (0 bytes) () 04/30/2020 postreply 18:22:20

• 那两轮驱动如何说，TWD，2WD？ -fourwaves- ♂ (56 bytes) () 05/01/2020 postreply 08:08:53

• 2wd, fwd, rwd, 都可以。所以我很奇怪4x2的说法，呵呵。 -二胡一刀- ♂ (0 bytes) () 05/01/2020 postreply 08:27:00

• AWD在有黑冰的路面上好用。因为engaged all the time. 4W能从深雪中跑出来。我以前的那辆4runner能从 -时光的酒- ♀ (0 bytes) () 04/29/2020 postreply 15:41:48

• 没写完。继续。 -萨克斯风- ♂ (0 bytes) () 04/29/2020 postreply 15:53:07

• How to explain 4Runner’s part time 4WD at SR5 trim level and -Yangtze430030- ♂ (52 bytes) () 04/29/2020 postreply 16:06:09

• SR5 VS LTD -萨克斯风- ♂ (831 bytes) () 04/29/2020 postreply 16:56:50

• Subaru Symmetrical AWD 可能是最稳定的AWD -fourwaves- ♂ (0 bytes) () 04/30/2020 postreply 11:30:42

• 斯巴鲁或有保时捷的品质 -萨克斯风- ♂ (0 bytes) () 05/01/2020 postreply 12:02:42