Yida Chuang 發問時間: 社會與文化語言 · 7 年前

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Thrust Line If both rear wheels are square to one another and the rest of the vehicle, the thrust line is perpendicular to the rear axle and coincides with the vehicle's centerline. But if one or both rear wheels are toed-in or toe-out, or one is set back slightly with respect to the other, the thrust line thrown off-center. This creates a thrust angle that cause a steering pull in the opposite direction. For example, a thrust line that is off-center to the right makes the car pull left.

The presence of a thrust angle can cause poor directional stability on ice, snow, or wet pavement. It can sometimes make a vehicle pull during braking or hard acceleration. It can also increase tire wear as the front wheels fight the rear ones for steering control.

The only way to eliminate the problem is to eliminate the thrust angle. The thrust line can be recentered by realigning rear toe. On most FWD applications, that can be easily done by using the factory-provided toe adjustments, by placing toe/camber shims between the rear spindles and axle, or by using eccentric bushing kits.

3 個解答

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  • 7 年前
    最佳解答

    Thrust Line 推進線

    If both rear wheels are square to one another and the rest of the vehicle, the thrust line is perpendicular to the rear axle and coincides with the vehicle's centerline.

    如果兩個後輪彼此和車子本身都成直角,那麼推進線是垂直於後輪軸同時與車子的中心線合一。

    But if one or both rear wheels are toed-in or toe-out, or one is set back slightly with respect to the other, the thrust line thrown off-center.

    但是如果有一個或兩個後輪前端向內側傾斜或前端向外側傾斜,或有一輪的角度和另一輪稍微不同,推進線就脫離了中心。

    This creates a thrust angle that cause a steering pull in the opposite direction. For example, a thrust line that is off-center to the right makes the car pull left.

    這樣就造成了使轉向偏離相反方向的推進角。例如,推進線向右偏離中心線會使車子轉向左邊。

    The presence of a thrust angle can cause poor directional stability on ice, snow, or wet pavement. It can sometimes make a vehicle pull during braking or hard acceleration. It also increase tire wear as the front wheels fight the rear ones for steering control.

    推進角的存在能導致在冰、雪或溼的路面上方向的不穩定性。它有時會在煞車時使車輛前衝或難以加速。它也因為前輪和後輪爭取轉向控制而增加輪胎磨損。

    The only way to eliminate the problem is to eliminate the thrust angle. The thrust line can be recentered by realigning rear toe. 消除這個問題的唯一方法就是消除推進角。重新校準後輪束角可以使推進線回歸中心線。

    On most FWD applications, that can be easily done by using the factory-provided toe adjustments, by placing toe/camber shims between the rear spindles and axle, or by using eccentric bushing kits.

    在大多數前輪驅動的應用上,使用原廠提供的束角調整,更換後輪輪軸和軸心的束角/外傾角墊片,或使用偏心軸襯套件都可以很容易的完成。

  • 匿名使用者
    7 年前

    兩個後輪彼此和車子本身都成直角。。。

    我認為是

    兩個後輪分別和車體成直角

  • 7 年前

    人行路有【八字腳】,【入字腳】,【正步】,車輪定位也一樣,有入字(toe-in),八字(toe-out),正向(toe-zero)

    如果兩個後輪彼此之間的位置對,跟車的其他部分的位置也放的對的話,車的推力線應該是跟後軸垂直,跟車的中線重疊的。但如果有一個或者兩個後輪給擺歪了,不管是八字還是入字,或者一個後輪比另外一個後輪稍後,那時候推力線就不會跟車的中線重疊。它們兩者之間的角度,會把車拉往一個相反的方向。好像推力線在中線的右邊的話,車子就會被拉往左邊。

    當推力線跟車子的中線有了一個角度,車子的方向就很難控制,尤其當車子行走在冰,雪,或者濕的路上,甚至在剎車,快加速的時候。在控制車行走的方向上,因為前輪跟後輪在打架,它也會增加輪胎的磨損。

    唯一解決的方法就是把那個角度除去。我們可以通過後輪的重新定位把推力線糾正。一般前輪推動的車都很容易,車廠有供應特別為這種定位用的墊片,不對稱的軸套,把它裝在後軸跟後錘之間就可以了。

    2013-04-22 07:34:14 補充:

    失敬,失敬。那麼專門的文章,易達是學這門的吧。

    2013-04-22 14:19:14 補充:

    兩個後輪彼此和車子本身都成直角。。。

    兩個後輪彼此如何成直角?

    2013-04-22 14:51:18 補充:

    兩個後輪彼此和車子本身都成直角...

    兩個後輪彼此如何成直角?

    2013-04-24 12:41:22 補充:

    有幾個地方是翻錯了。

    pull during braking 是剎車時車會擺在一旁,不是剎車時前衝。

    hard acceleration 是猛加速,所以 pull during hard acceleration 是說在猛加速時,車子會偏,不是說難以加速。

    front wheels fight the rear ones for steering control 是指前後輪的前進方向不一致,在打架。這裡沒有提到【轉向】的問題。

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