特斯拉國道直直插入貨車車廂內影片 - 特斯拉
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By Elma
at 2020-06-03T10:54
at 2020-06-03T10:54
Table of Contents
翻自weibo有解說更清楚TeslX的想法,原文是簡中,有閱讀困難就看繁文。
https://reurl.cc/X63r6j
看到群裡發的,去看了特斯拉 2020.4 版本的用戶手冊。
首先是 AEB 的設計,特斯拉的設定是運行速域限於 10-150 km/h,其中當時速達到 56
km/h 以上,AEB 最大降低速度為 50 km/h,執行目標由「自動剎停」變成「減緩碰撞時
速,降低損傷」。
這與博世的 AEB 決策邏輯是基本一致的,區別只有博世是 40 km/h 以下完全剎停,40
km/h 以上最大降低速度為 40 km/h,換句話說以 110 km/h 的時速開,剎到 70 km/h 就
會放開制動。
最後是關於 ACC 的設定,80 km/h 以上的時速出現靜止或移動緩慢的車輛或障礙物,可
能不會實施制動或車輛減速。
這麼看下來,前兩天那個車禍完全不可避免。
你要問為什麼不能直接剎停?這是自動駕駛感知環節的誤檢和漏檢的問題,也就是說,你
認為的非常簡單的「前方有障礙物」的場景,對於系統來說絕大多數時候都存在有/沒有
無法判斷的情況。
那為什麼不設定成「寧可誤檢不要漏檢」呢,這不就可以更多地避免車禍了嗎?
因為那樣的話很多時候車就沒法開了,Autopilot 根本沒法用了。比如過橋洞這種亮暗面
分明的場景,特斯拉會突然急剎。車主應該知道我在說什麼。
--
https://reurl.cc/X63r6j
看到群裡發的,去看了特斯拉 2020.4 版本的用戶手冊。
首先是 AEB 的設計,特斯拉的設定是運行速域限於 10-150 km/h,其中當時速達到 56
km/h 以上,AEB 最大降低速度為 50 km/h,執行目標由「自動剎停」變成「減緩碰撞時
速,降低損傷」。
這與博世的 AEB 決策邏輯是基本一致的,區別只有博世是 40 km/h 以下完全剎停,40
km/h 以上最大降低速度為 40 km/h,換句話說以 110 km/h 的時速開,剎到 70 km/h 就
會放開制動。
最後是關於 ACC 的設定,80 km/h 以上的時速出現靜止或移動緩慢的車輛或障礙物,可
能不會實施制動或車輛減速。
這麼看下來,前兩天那個車禍完全不可避免。
你要問為什麼不能直接剎停?這是自動駕駛感知環節的誤檢和漏檢的問題,也就是說,你
認為的非常簡單的「前方有障礙物」的場景,對於系統來說絕大多數時候都存在有/沒有
無法判斷的情況。
那為什麼不設定成「寧可誤檢不要漏檢」呢,這不就可以更多地避免車禍了嗎?
因為那樣的話很多時候車就沒法開了,Autopilot 根本沒法用了。比如過橋洞這種亮暗面
分明的場景,特斯拉會突然急剎。車主應該知道我在說什麼。
--
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