比亞迪推出DM-i超低油耗混動平臺 - 汽車
By Isla
at 2020-11-13T08:34
at 2020-11-13T08:34
Table of Contents
原文連結:
https://m.us.sina.com/bg/tech/sinacn/2020-11-12/detail-ihacvzpq2839411.shtml
原文內容:
比亞迪推出DM-i超低油耗混動平臺 發動機熱效率43%暫創全球最高
新浪數碼2020-11-12 16:13:45
新浪數碼訊 11月12日上午消息,比亞迪在北京展示了剛剛亮相的DM-i超級混動技術中的核心部件之一——驍雲-插混專用1.5L高效發動機。該發動機專爲實現超低油耗開發,熱效率高達43%,是目前全球熱效率最高的量產汽油發動機。
早在今年6月,比亞迪便發佈了全新一代DM混合動力平臺,並推出DM-p和DM-i 雙平臺,分別主打性能與經濟性。DM-p高性能平臺早先已搭載於比亞迪漢DM等車型上,擁有4秒級的零百加速性能。而 DM-i平臺則以低油耗爲賣點,追求高效節能,此次亮相的驍雲-插混專用1.5L高效發動機,正是比亞迪DM-i平臺中公佈的首款核心部件。
辣댭插混專用1.5L高效發動機技術參數
驍雲-插混專用1.5L高效發動機專爲DM-i超級混動技術打造。它以實現超低油耗爲開發目標,最大功率爲81千瓦,峯值扭矩爲135牛米,壓縮比爲15.5,熱效率則達到了43%,是目前全球熱效率最高的量產汽油發動機。
辣댭插混專用1.5L高效發動機技術路線
驍雲-插混專用1.5L高效發動機以熱效率35%的發動機平臺爲基礎,通過採用15.5的超高壓縮比、增大沖程/缸徑比、阿特金森循環、EGR廢氣再循環系統、一系列降摩擦措施、以及針對高熱效率目標優化的發動機控制系統等一系列強悍超羣的技術措施,最終實現了43%的熱效率
在這款發動機上,比亞迪還首次啓用了發動機分體冷卻技術,通過對缸蓋和缸體的溫度控制,按需爲缸蓋和缸體精準提供冷卻,使缸蓋和缸體都能處在最佳工作溫度,提升了發動機效率,冷啓動暖機過程縮短15%-20%的時間,降低了暖機過程的油耗和排放。
辣댭插混專用1.5L高效發動機
此外,這款發動機還充分利用插電混動車型的電動化優勢,將附件電器化,取消了傳統發動機前端輪系,進一步降低了損耗,提升了效率。除此之外,比亞迪還在NVH性能方面,對曲軸、軸承、缸體、進氣歧管、油底殼、正時罩蓋、缸蓋罩蓋等零部件進行了特殊的優化設計。
活動現場,比亞迪汽車銷售有限公司副總經理李雲飛介紹了DM-i超級混動技術的優勢:搭載DM-i的車型相比傳統燃油車,油耗更低、起步更快、平順更靜音、電動更環保,但價格卻與同級別外資燃油車購置落地價相當,是比亞迪反攻德系、日系、美系車型在中國市場高佔有率的有力武器。
據悉,DM-i超級混動技術會率先搭載於全新秦plus和宋plus DM兩款車型,最快於明年一季度末推出市場。
心得/說明:(30字以上)
中國汽車產業
急起直追
看到中國汽車業
這20年的發展真的很強
從早期跟台灣一樣
買零件來拼裝
到現在國產供應鏈
逐漸取代
研發投入很多
現在連引擎
都能媲美日本惹
台灣早了30~40年
連品質都被中國車屌打
可憐哪
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