【 在 yxdnmg71 (青岛大虾) 的大作中提到: 】 不要相信四驱神话，否则会死的很惨。我老在东北曾经单程八十麦上班，在高速上经历 几场大的雪，出事100%是四驱车，包括皮卡和SUV，没一个两驱车，路上两驱车包括我 的camry并不少。谁能解释一下为什么？ 回复1 While 4WD and AWD may maximize traction better than 2WD, that doesn't necessarily translate into making it a safer vehicle. Oftentimes, drivers believe that because they can accelerate in snow just as quickly as on dry roads, they can do the same in terms of cornering and braking. On the contrary, 4WD and AWD do little to aid in cornering and nothing for braking ability on wet, snowy roads. Once moving, the physics of 2WD, 4WD, and AWD systems are pretty much the same. 回复2 I am assuming that you want 4WD/AWD for safety on snow and ice. 4WD/AWD systems provide some but not much added safety! Only the convenience, that you don't have spinning tires when starting - or the convenience to get started where a 2WD would not be able to get going. Or the convenience to get up a snowy pass without spinning tires or without mounting chains. However, once moving the physics for all vehicles are equal. 1WD, 2WD, 4WD, 6WD etc. All motor vehicles need traction for safe steering - 4WD/AWD does not provide extra traction for steering. All cars need traction for safe braking - 4WD/AWD does not provide extra traction for braking. In that sense 2WD is "safer" - it leaves you stranded early and keeps you out of trouble. The trouble only 4WD/AWD owners might get into. The problem is, that most 4WD/AWD owners think they operate a safer system. Once moving (on any slippery stuff) they drive faster than they should and not as carefully and slowly as they would in a 2WD. Much more 4WD vehicles are involved in accidents on snow and ice than 2WD. Since snow and ice provide only marginal traction (so marginal that you need 4WD/AWD to start moving) and not enough lateral force can be created to support the tires during a turn, they slip sideways and the vehicle falls off the road. 4WD does not prevent that. 4WD is not involved in the steering part of driving. Since snow and ice provide only marginal traction (so marginal that you need 4WD to start moving) not enough traction is available for safely stopping the car. Neither ABS nor 4WD helps you to stop the car. 4WD is not involved in the braking part of driving at all and ABS only keeps the tires from locking up. Locking or not locking has almost no influence on the stopping distance. And by the way, when you own a part time 4WD vehicle, ABS does not even work anymore when you shift into 4WD. 我假设你想要4WD / AWD在雪和冰上的安全。 4WD / AWD系统提供了一些但不是很多的 安全性！只有方便，你没有纺车轮胎起动时 - 或方便起步，2WD不能去。或方便起来一个雪通行证，没有轮胎或没有安装链。 然而，一旦移动，所有车辆的物理学是相等的。 1WD，2WD，4WD，6WD等。 所有机动车辆都需要牵引力以确保安全转向 - 4WD / AWD不会为转向提供额外的牵引 力。 所有车辆都需要牵引力进行安全制动 - 4WD / AWD不为制动提供额外的牵引力。 在这个意义上，2WD是“更安全” - 它让你早早搁浅，让你摆脱麻烦。麻烦只有4WD / AWD的业主可能会进来。 问题是，大多数4WD / AWD的业主认为他们操作一个更安全的系统。一旦移动（在任何 湿滑的东西），他们的驾驶速度比他们应该，而不是像在2WD一样仔细和缓慢。在雪和 冰上的事故涉及的4WD车辆多于2WD。 由于雪和冰只提供边缘附着力（因此需要4WD / AWD来开始移动），并且在转弯期间不 能产生足够的侧向力来支撑轮胎，它们向侧面滑动并且车辆脱离道路。 4WD不能防止这种情况。 4WD不涉及驾驶的转向部分。 由于雪和冰只提供边缘的牵引力（所以边缘，你需要4WD开始移动）没有足够的牵引力 可用于安全停止汽车。 ABS和4WD都不能帮你停车。 4WD根本不涉及驱动的制动部分， ABS仅保持轮胎不锁定。锁定或不锁定对停止距离几乎没有影响。 顺便说一句，当你拥有一辆部分时间的4WD车辆，ABS甚至不工作，当你转换到 4WD。
【 在 XJL99 (本田-梦想的力量) 的大作中提到: 】 回复1 While 4WD and AWD may maximize traction better than 2WD, that doesn't necessarily translate into making it a safer vehicle. Oftentimes, drivers : believe that because they can accelerate in snow just as quickly as on dry roads, they can do the same in terms of cornering and braking. On the contrary, 4WD and AWD do little to aid in cornering and nothing for braking ability on wet, snowy roads. Once moving, the physics of 2WD, 4WD, and AWD systems are pretty much the same. 回复2 I am assuming that you want 4WD/AWD for safety on snow and ice. 4WD/AWD ...................
I am assuming that you want 4WD/AWD for safety on snow and ice. 4WD/AWD systems provide some but not much added safety! Only the convenience, that you don't have spinning tires when starting - or the convenience to get started where a 2WD would not be able to get going. Or the convenience to get up a snowy pass without spinning tires or without mounting chains. However, once moving the physics for all vehicles are equal. 1WD, 2WD, 4WD, 6WD etc.
All motor vehicles need traction for safe steering - 4WD/AWD does not provide extra traction for steering.
All cars need traction for safe braking - 4WD/AWD does not provide extra traction for braking.
In that sense 2WD is "safer" - it leaves you stranded early and keeps you out of trouble. The trouble only 4WD/AWD owners might get into.
The problem is, that most 4WD/AWD owners think they operate a safer system. Once moving (on any slippery stuff) they drive faster than they should and not as carefully and slowly as they would in a 2WD. Much more 4WD vehicles are involved in accidents on snow and ice than 2WD. Since snow and ice provide only marginal traction (so marginal that you need4WD/AWD to start moving) and not enough lateral force can be created to support the tires during a turn, they slip sideways and the vehicle falls off the road. 4WD does not prevent that. 4WD is not involved in the steeringpart of driving. Since snow and ice provide only marginal traction (so marginal that you need4WD to start moving) not enough traction is available for safely stopping the car. Neither ABS nor 4WD helps you to stop the car. 4WD is not involved in the braking part of driving at all and ABS only keeps the tires from locking up. Locking or not locking has almost no influence on the stopping distance. And by the way, when you own a part time 4WD vehicle, ABS does not even work anymore when you shift into 4WD.
: 这两段说得比较中肯 以后推销本田suv的时候千万别忘了
: braking
大哥本田awd是选配
您倒是可以提醒那些斯巴鲁销售
【 在 bwzl001 (百尺竿头) 的大作中提到: 】
: 楼主标题就是来抬杠的
: 难道不需要四驱么？
【 在 XJL99 (本田-梦想的力量) 的大作中提到: 】
: 哎 又是一位想买本田没成功转黑的患者 也就剩骂人这点本事了
: 这两段说得比较中肯 以后推销本田suv的时候千万别忘了
: braking
其实这些回复这里某些明白人不只说过一次 可能因为用的是中文 某牌托不信而已
还是觉得洋人专业点 不会忽悠人？
I am assuming that you want 4WD/AWD for safety on snow and ice. 4WD/AWD
systems provide some but not much added safety! Only the convenience, that
you don't have spinning tires when starting - or the convenience to get
started where a 2WD would not be able to get going. Or the convenience to
get up a snowy pass without spinning tires or without mounting chains.
However, once moving the physics for all vehicles are equal. 1WD, 2WD, 4WD, 6WD etc.
All motor vehicles need traction for safe steering - 4WD/AWD does not
provide extra traction for steering.
All cars need traction for safe braking - 4WD/AWD does not provide extra
traction for braking.
In that sense 2WD is "safer" - it leaves you stranded early and keeps you
out of trouble. The trouble only 4WD/AWD owners might get into.
The problem is, that most 4WD/AWD owners think they operate a safer system. Once moving (on any slippery stuff) they drive faster than they should and
not as carefully and slowly as they would in a 2WD. Much more 4WD vehicles
are involved in accidents on snow and ice than 2WD.
Since snow and ice provide only marginal traction (so marginal that you need4WD/AWD to start moving) and not enough lateral force can be created to
support the tires during a turn, they slip sideways and the vehicle falls
off the road. 4WD does not prevent that. 4WD is not involved in the steeringpart of driving.
Since snow and ice provide only marginal traction (so marginal that you need4WD to start moving) not enough traction is available for safely stopping
the car. Neither ABS nor 4WD helps you to stop the car. 4WD is not involved in the braking part of driving at all and ABS only keeps the tires from
locking up. Locking or not locking has almost no influence on the stopping
distance.
And by the way, when you own a part time 4WD vehicle, ABS does not even
work anymore when you shift into 4WD.
: 卖车的自然是自卖自夸，如果奥德赛出了AWD的，XJL99必然有另外一番说辞。不过看他
: 的主贴，我觉得倒也不是一点儿道理都没有，AWD对于Minivan来说是没有太大必要。
awd没有问题 cost to own不考虑的情况下我认为是更好的选择
但问题的关键是以目前sienna awd的缺点来看不足以平衡awd带来的对minivan来说的可能的些许的好处。
换句话说如果奥德赛awd没有sienna awd目前的所有先天不足，我会选awd，尽管对平时只开公路的用户来说可能心里作用大于实质作用，但中国人的心理都有个就怕万一，有比没有强的特性，但是如果奥德赛使用awd就必须要接受目前sienna awd已知的各种不
足，我不会选择awd。
我也反对为了推销awd就把awd对雪地的作用过于夸大，甚至吓唬用户说没有awd雪天没
法开了，不安全了之类的，而有意无意忽略更为关键的轮胎的因素。
这点加国就比较好，某些省在某个时段法律规定汽车必须装4个冬季胎，而不是规定说
大家车都必须要买awd。