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旧 Jul 14th, 2008, 10:20     #1
ajun217
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默认 【求助】请问车胎的胎压打到多少为宜?

请问车胎的胎压打到多少为宜?

如果我的胎最大能打到44 psi, 那最好打到多少为宜?

谢谢!
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旧 Jul 14th, 2008, 10:38   只看该作者   #2
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默认

因车而异.但大多数被要求打到32.
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旧 Jul 14th, 2008, 10:40   只看该作者   #3
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默认

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因车而异.但大多数被要求打到32.
不能打到足为止? 要是打到40多会怎么样?
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computist (Jul 14th, 2008)
旧 Jul 14th, 2008, 10:53   只看该作者   #4
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不能打到足为止? 要是打到40多会怎么样?
觉得40有点太高,当然那样省油,满载时容易掌控.

相反,打太低了虽然车子的traction性能好,但费油.

过高过低都容易引起胎failure,所以最好按车门上的建议数据打.
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旧 Jul 14th, 2008, 11:13   只看该作者   #5
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默认

rtfm
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旧 Jul 14th, 2008, 11:56   只看该作者   #6
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默认

这问题问的好。一个人肚皮可以装10个啤酒,到底喝多少比较好?当然喝完不出事、很过瘾最好。

车门那里都有写。
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phtsl (Jul 16th, 2008)
旧 Jul 14th, 2008, 14:57   只看该作者   #7
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默认

根据车的重量, 轮胎的宽度来决定.

车胎的气压 x 4 x 地面接触面积 = 车重 .

关键就是让接触面积能用到轮胎的整个宽度. 如果气压过低, 会用到轮胎侧壁. 如果气压过高, 只用到轮胎中间一部分. 这两种情况对操控和轮胎寿命都不好.

所以说, 要看车身表明的气压范围. 如果换了窄胎(冬天胎), 或者宽胎, 就要调整. 如果是原装的 size, 车里坐两个人气压应该打少些, 多人的时候应该打多些.

比如, BMW 530i, 平时两个人, front: 29-30psi, rear: 30-32psi. 如果长途需要坐四个人, front: 31psi, rear: 32-34psi. 这是根据车身重 3500lbs, 轮胎 235 宽度决定的, 跟 rim 尺寸无关.

Never argue with an idiot. He will consistently drag you down to his level and beat you with experience.
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旧 Jul 14th, 2008, 17:19   只看该作者   #8
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默认

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根据车的重量, 轮胎的宽度来决定.

车胎的气压 x 4 x 地面接触面积 = 车重 .

关键就是让接触面积能用到轮胎的整个宽度. 如果气压过低, 会用到轮胎侧壁. 如果气压过高, 只用到轮胎中间一部分. 这两种情况对操控和轮胎寿命都不好.

所以说, 要看车身表明的气压范围. 如果换...
一般承重轮的气压高些,这个530难道是后驱?

农民团结起来,共同提高粮食价格,每公斤提到5000元,愿买就买,不买就吃屎去吧
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旧 Jul 14th, 2008, 17:47   只看该作者   #9
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默认

别摸我好像都是后驱车吧

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旧 Jul 14th, 2008, 17:50   只看该作者   #10
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默认

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一般承重轮的气压高些,这个530难道是后驱?
后驱车难不成把发动机也放后面?
应该还是车前部重一点吧。
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旧 Jul 14th, 2008, 18:12   只看该作者   #11
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默认

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一般承重轮的气压高些,这个530难道是后驱?
宝马啥时候有前驱?
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旧 Jul 14th, 2008, 18:19   只看该作者   #12
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默认

我车门上写的是30psi,我冬天打30psi,增加磨擦力;夏天打到35psi,不敢再多了,怕受热膨胀后损坏轮胎甚至爆胎。

生活,就是与家人在一起,平静地过日子。以远离政治,节制欲望,度事宽容为生活法则。博弈是资本游戏的灵魂!博弈状态的把握结合技术分析可无往不胜。
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旧 Jul 14th, 2008, 19:30   只看该作者   #13
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默认

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我车门上写的是30psi,我冬天打30psi,增加磨擦力;夏天打到35psi,不敢再多了,怕受热膨胀后损坏轮胎甚至爆胎。
爆不了。有安全系数的。
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旧 Jul 14th, 2008, 21:04   只看该作者   #14
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默认

温度每升高5.6摄氏度, 胎压增大1 PSI. 轮胎气压要以车门框上的指示为准.
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旧 Jul 14th, 2008, 21:06   只看该作者   #15
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默认

我该信你们俩谁呢?
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旧 Jul 14th, 2008, 21:08   只看该作者   #16
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默认

我除了冬季常年打38.
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旧 Jul 14th, 2008, 21:27   只看该作者   #17
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默认

夏天,规定多少就只能多少,比如规定32就只能32

冬天,可以适当多加,比如规定32打到35都可以
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旧 Jul 15th, 2008, 02:30   只看该作者   #18
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夏天,规定多少就只能多少,比如规定32就只能32

冬天,可以适当多加,比如规定32打到35都可以
这是为什么
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旧 Jul 15th, 2008, 09:48   只看该作者   #19
ranqiao
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作者: phtsl 查看帖子
这是为什么...
冬天气温低,相应的,胎内空气不会膨胀得太厉害,开起来之后气压不会升的太高,所以可以稍微打多一点

但是夏天气温高,胎内空气比较活泼,开起来之后,胎热的快,胎内的气压很快就上去了,打多了之后,气压会变得太高,高速的时候非常危险,所以标多少就只能打多少
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旧 Jul 15th, 2008, 10:12   只看该作者   #20
hardywang
在青麦地上跑着 / 雪和太阳的光芒
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作者: ranqiao 查看帖子
冬天气温低,相应的,胎内空气不会膨胀得太厉害,开起来之后气压不会升的太高,所以可以稍微打多一点

但是夏天气温高,胎内空气比较活泼,开起来之后,胎热的快,胎内的气压很快就上去了,打多了之后,气压会变得太高,高速的时候非常危险,所以标多少就只能打多少...
你说反了,冬天压力要低一点为了增加traction。
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