The Difference Between AWD vs 4WD

來源: 薩克斯風 於 2020-04-29 13:02:22 [] [舊帖] [給我悄悄話] 閱讀數 : (1482 bytes)

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是一回事嗎？ -二胡一刀- ♂ 給 二胡一刀 發送悄悄話 二胡一刀 的博客首頁 (0 bytes) () 04/29/2020 postreply 14:31:02

• 4x4 =4WD -薩克斯風- ♂ 給 薩克斯風 發送悄悄話 (363 bytes) () 04/29/2020 postreply 15:47:22

• How is 4Runner’s all time 4WD for Limited and part time 4WD for -Yangtze430030- ♂ 給 Yangtze430030 發送悄悄話 Yangtze430030 的博客首頁 (0 bytes) () 04/29/2020 postreply 16:03:25

• 我還看到過4x2, 那是什麽東東? -二胡一刀- ♂ 給 二胡一刀 發送悄悄話 二胡一刀 的博客首頁 (0 bytes) () 04/29/2020 postreply 17:20:01

• 四個輪胎，兩輪驅動。 -biglow- ♂ 給 biglow 發送悄悄話 biglow 的博客首頁 (0 bytes) () 04/29/2020 postreply 21:16:41

• 這這這。。。你逗我是吧。 -二胡一刀- ♂ 給 二胡一刀 發送悄悄話 二胡一刀 的博客首頁 (0 bytes) () 04/30/2020 postreply 08:43:07

• 放狗搜4X2，看是個啥結果。 -biglow- ♂ 給 biglow 發送悄悄話 biglow 的博客首頁 (0 bytes) () 04/30/2020 postreply 14:27:12

• 主要是奇怪為啥有人這樣說，汽車還有兩個輪子的不成。 -二胡一刀- ♂ 給 二胡一刀 發送悄悄話 二胡一刀 的博客首頁 (0 bytes) () 04/30/2020 postreply 18:22:20

• 那兩輪驅動如何說，TWD，2WD？ -fourwaves- ♂ 給 fourwaves 發送悄悄話 (56 bytes) () 05/01/2020 postreply 08:08:53

• 2wd, fwd, rwd, 都可以。所以我很奇怪4x2的說法，嗬嗬。 -二胡一刀- ♂ 給 二胡一刀 發送悄悄話 二胡一刀 的博客首頁 (0 bytes) () 05/01/2020 postreply 08:27:00

• AWD在有黑冰的路麵上好用。因為engaged all the time. 4W能從深雪中跑出來。我以前的那輛4runner能從 -時光的酒- ♀ 給 時光的酒 發送悄悄話 (0 bytes) () 04/29/2020 postreply 15:41:48

• 沒寫完。繼續。 -薩克斯風- ♂ 給 薩克斯風 發送悄悄話 (0 bytes) () 04/29/2020 postreply 15:53:07

• How to explain 4Runner’s part time 4WD at SR5 trim level and -Yangtze430030- ♂ 給 Yangtze430030 發送悄悄話 Yangtze430030 的博客首頁 (52 bytes) () 04/29/2020 postreply 16:06:09

• SR5 VS LTD -薩克斯風- ♂ 給 薩克斯風 發送悄悄話 (831 bytes) () 04/29/2020 postreply 16:56:50

• Subaru Symmetrical AWD 可能是最穩定的AWD -fourwaves- ♂ 給 fourwaves 發送悄悄話 (0 bytes) () 04/30/2020 postreply 11:30:42

• 斯巴魯或有保時捷的品質 -薩克斯風- ♂ 給 薩克斯風 發送悄悄話 (0 bytes) () 05/01/2020 postreply 12:02:42

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