[Lung Sir Academy Ep19] Electric Vehicles Lesson 4: The air-conditioning system

Since the government launched the One-for-One Electric Vehicle Replacement Plan, Hong Kong electric vehicles have mushroomed and dominated the Hong Kong new car sales market in a short period of time. Whether they are European electric vehicles, Japanese electric vehicles, or even new Chinese electric vehicle brands, they have also On sale in Hong Kong. Electric vehicles, a new type of vehicle, have many advantages. However, because the innate design of electric vehicles is very different from gasoline vehicles, electric vehicles require drivers to learn or adapt in many aspects. After Long Sir Academy explained the characteristics of different motors, the control characteristics of electric vehicles, and the brake design of electric vehicles in the "Understanding Electric Vehicles" series, this time we came to the place where Lung Sir thinks electric vehicles are most different from gasoline vehicles - Air conditioning system. You may be using an electric car, or have ridden in an electric car. Why is the air conditioning control in the car always weird? It is either too cold or too hot, and it is not as stable as the air conditioning of traditional gasoline cars. Lung Sir will explain to you this time. This is also the Achilles heel of electric vehicles. So far, it has not been able to completely achieve the air conditioning as good as that of gasoline vehicles. He also recommends that electric vehicle users should pay attention to this when purchasing glass insulation stickers. thing.
Lung Sir Academy "Understanding Electric Vehicles" video series
1. Understand the first lesson of electric vehicles: the reasons behind the use of different motors by car manufacturers
• 【龍Sir學堂 Ep15】認識電動車第一課 ...
2. Why are the handling and comfort of electric vehicles different from those of gasoline vehicles?
• 【龍Sir學堂 Ep16】認識電動車第二課 ...
3. The braking system of electric vehicles is very different from that of internal combustion engine vehicles. Understanding the characteristics of different systems
• 【龍Sir學堂 Ep18】認識電動車第三課 ...
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[@manchan2016]

龍sir真係香港咁多汽車頻道最有知識嘅一個，每次講解嘅複雜教學都將佢簡單地表達👍🏼👍🏼👍🏼

[@himko4382]

幾時都話香港咁多個講車channel，得龍Sir係學到嘢返屋企

[@4MK_4MK]

解釋咗好多好多疑惑

[@user-hi7fr9vi3q]

高見，老蝦搞是有料到

[@chiellinilee5152]

真真係

[@Hi-vr4mv]

👏學到野，多謝龍sir👍

[@1218keith]

龍 sir, 每次都深入淺出，解釋清楚易明 👏 #電動車 #冷氣 #發霉

[@Ben-uw3vv]

龍sir, 一語道破！
可能係CZcams 界第一個人講呢個死穴嘅Channel 添！

[@richardwu1952]

You resolved my long standing question on sun-roof and humidity management in EV. Fabulous and simple explanations. Lung Sir.👍

[@sir167]

謝謝！😊

[@netmatrix75]

Its amazing that after so long in EV existence, there is almost no one that elaborated how the AC system works and why the glass roof is needed. I think Elon did mention a little bit about it. But there was never a mention that it was related to the AC system. Seems like this video is the pioneer to elaborate about this! Great content!

[@eddycheung7784]

龍sir，聽完您講解👍，Hybrid應該可以平衡到油價和舒適的需求。🙏

[@tylerng688]

香港人有rev真係好幸福🎉

[@alexalex-bk5ls]

清晰、精要、有益消費者👍
加油

[@carjaswong]

絕對是全港最有質素的車評網.

[@kuang01]

我反對。你講得唔岩。其實係全球最有質素。 因為全世界都無人講呢d實際野。一係吹捧，一係全踩。

[@GRT1]

正，到無話可說，龍大師一語道破，問世間，車為何物😂

[@louispoon4495]

比龍sir罰留堂真係甘心情原，真係學到好多野，勁
記得舊BMW比較特別，要手動係兩個冷氣出風口中間有個制去調較熱水哇佬既流量先有暖氣出，如果吾係個温度制SET到33度都吾會有暖氣

[@shgme7105]

正 多謝分享

[@Li-ms9pw]

有質素的頻道！👍👍

[@edwardcty6808]

龍sir有信譽！之前應承出片講解電車和油車冷氣分別！現在出了❤

[@kaicheongchang4367]

佢唔明白油車冷氣怎样功作😅

[@devilking55699]

多謝龍sir指點,講解得非常清楚,連我呢啲中佬都一聽就明,支持你

[@sanjitsha6639]

多谢龙 sir 与 RevChannel 。龙sir 对电动车的空调系统的讲解非常好。对于电动车的空调系统使用方法也非常适用。太好了。

[@AlexLiuHK412]

日頭曬到正，真係好攞命。👍押韻

[@NotTophatC0rksw3lla]

龍sir講車真心正

[@user-mb6hs4js2t]

龍Sir 講中晒。電車冷氣真係有啲麻煩，但係記緊用吸濕象，再加上吸味炭，有好大幫助。

[@PaulKeeWong]

係呀，我在加拿大冬天揸車，日間有太陽，但出面係負10幾度，坐係車入面開咗一陣暖氣或暖櫈就要調返低，因為太陽晒入來，你會Feel到係辣手，好熱，但你一出車門一陣，凍到變雪條....

[@sir167]

在北美這個太陽頂非常重要，千萬不要貼阻隔infrared的太陽紙，否則電池好快冇電😂

[@L_K_K]

又長知識了，龍Sir勁呀👍🏻多謝龍Sir🙏🏻
可以大膽講句：無睇呢集，真係走寶！❤

[@mlau9991]

制热能力，电车不如油车，因为油车引擎本身就不停发热，可以将这些热量加以利用，所以油车”制热“不成问题，效率很高，相比之下，电车制热效率就不高了；但说到制冷，电车油车两者差别不大。

[@user-di6bh8nu7b]

制冷能力，电车比油车功率大很多，因为不单单车厢需要制冷，还有快速充电时候电池都需要恒温

[@planeswalker00]

長智識了 ，原來係咁樣嘅，非常之有用😊

[@cheeheanleong2000]

多謝龍sir的解說，這一集學著很多。👏

[@axemanwong1]

Thank you 龍sir. You are the best. You are really a walking encyclopedia.

[@dic-pr9un]

真係學到野！

[@hong191084]

龍Sir真材實料！！！！

[@keithwong2638]

龍Sir 係汽车博士，當之無愧👍🏼

[@user-ro4ri9cn7c]

其實玻璃頂好大程度係釋放車廂空間，因為動力電池占用左車廂空間，傳統天窗厚、安裝成本高過玻璃頂。動力電池加高左車身，玻璃頂一舉多得。

[@marcomak8061]

龍sir好嘢👍，令大家又學多樣知識👏👏👏

[@ninjatvhk]

聽龍Sir講車真係學到野👍👍👍怪唔得有時我想較凍D，佢出一陣暖氣先識凍😅😅😅

[@nakamuragames]

龍sir唔講我覺得我呢世都唔會知
請繼續出呢個系列🙏

[@user-qk3mw9sj7p]

龍sir對車與物理知識博大精深。

[@laijacky4840]

早排先喺度關心緊點解電動車啲冷氣咁差但係搵唔到答案
估唔到隔左一排龍sir就出左條片講呢樣野🙈🙈
多謝龍sir

[@prosushicfu9198]

勁，學到啲冷門得實用嘅知識！多謝龍Sir！

[@TimothyYNWA]

龍sir始終都係咁可敬！真係得佢先講到衣d野我地聽

[@cheungwanfung3008]

多謝龍Sir老師❤

[@Jharjit]

Lung Sir Bravo 👏🏾👏🏾👏🏾

[@snowman1221]

上完堂，又長知識，多謝龍Sir 🙏

[@pkny9394]

Really like the way you explain things, very easy to understand. Hope you can talk more about the thermo system in the future

[@soundbarguy]

長知識🙏🏻 原來電車和油車有這個分別👍🏻多謝分享

[@joerover]

最煩冬天、落雨天一定要開冷氣先可以除走大銀幕D霧氣！反而電車可以考慮加附"熱石式"抽濕！我衣櫃長期都係用佢！以車箱用電量算低啦！又靜！

[@mannice9495]

學到野 🎉立即like❤

[@catcat_william]

長知識, 感謝 龍 Sir

[@SunLau]

龍Sir d片真係好高汁!
學到野

[@luhduncan6204]

龍Sir 教出 非常无得顶啊。。。。赞赞赞。我就未睇先赞啊 哈哈哈哈

[@kingwing83611]

學到嘢，多謝龍sit🫡

[@MrMessy1986]

其實講到尾係energy efficiency嘅問題，燃油車唔係比較好，而係佢將無可避免要浪費嘅能源（廢熱）搵到利用嘅方法（抽濕）。電車做唔到傳統上嘅額外好處係因為佢浪費嘅能源唔夠多，變咗要抽濕就要用其他方法；要解決呢個問題，喺新型電池大幅提升energy density同續航力，大到可以額外同時運轉抽濕系統又不降低cruising experience之前，車主就需要外置一個車內抽濕裝置。

[@ac-stingz]

Tesla 除咗heatpump都仲有compressor同埋octovalve可以解決到大部份問題之外，佢其實仲有抽濕劑幫忙抽走空氣水份。covid期間我試過負10幾度要喺呢邊嘅急症室外面等家人5個鐘（家人唔比逗留），如果唔係電車可以唔使着engine就開暖氣，果次都會幾麻煩（至少唔驚中毒）。

[@sir167]

Octovalve的功能就是改變系統的冷熱水流向以適應不同的情景的熱管理需求，電動車以停車開空調，的確是個大優點。

[@cancherie38]

出面負10幾度唔比係醫院等？一個家屬都唔比？

[@ac-stingz]

@@cancherie38 covid期間只可以喺waiting area等到醫護接走病人入診療區，之後家人一個都唔準逗留，病人唔識中文佢有華裔護士幫手。

[@peteryau80]

聽龍SIR講完,明白有時係要俾D熱入車籠令冷氣泵工作,又學到野.😀

[@tankahyau3517]

Wow….what a suprise info for me regarding EV !!!

[@tomwong606]

日產 Serena E power，車廂中排腳位，左右各有一個氣孔，說明書話係散熱用勿遮閉。我一直都唔明，個車廂（夏天）梗係想涼啲點會散熱喺個車廂內。睇黎龍 sir 解釋咗個原因。又似乎日產既工程師真係諗得好仔細，要俾佢地一個👍

[@torque-converter-w2y]

果兩個唔係驅動電池散熱排風口嚟？
呢啲七八人車 車頭暖氣口向前排錶版台底
車尾暖氣口就向輪拱殼度(睇車尾套冷氣風機擺向左邊定右邊)

[@khkckhkc]

Informative and insightful, I often wonder why most EVs come with such a large sunroof.

[@sir167]

是的，個中原因秘而不宣😅

[@MingParisan]

琴日就諗緊幾時再有龍sir學堂可以聽！正！

[@johnchai8546]

支持龙Sir
Good Evening Sir~~

[@optimisticblackorange]

龍sir👍👍👍👍👍

[@moub8]

多謝龍sir分享，又學到嘢！

[@jamesL888]

多謝Lung sir🙏🙏🙏

[@TCTheGreat]

學到嘢, 龍sir好嘢!!!

[@tinhauchung37]

👏👍💪💯🙏REV Channel 加油

[@pingo049]

電車個冷氣真係好唔舒服，如果你凍少少開暖氣更加辛苦，唔係自己揸車既時候坐隔離真係頂唔順，還有就係如果落雨開雨刮，個雨刮檔位大少少，你會發現部車個電力續航去得好快。

[@kevinbig9164]

請教下點解雨刮影響咁大嘅

[@tamtam-vl6kh]

好嘢，又學到嘢! 唔講真係唔知

[@elviswong7512]

又長知識，之前我就係一直都唔理解做乜事電動車車頂咁大塊透明玻璃比太陽直射，而家真係明晒

[@benlamllp]

又上了一課, 龍SIR, Thanks

[@EggWafflehea]

夏天可以喺車廂內冇顧忌咁煲冷氣呢個優點已經蓋過大部份缺點

[@sir167]

呢句真😂

[@chunyiutam9408]

真係唔講唔知 多謝龍sir又袋錢落我哋袋❤

[@user-iq8vn4sk1f]

Thanks & Support

[@hwong5713]

多谢晒龍sir，又学到嘢啦

[@hondoriarigato6108]

真系估吾到會系咁，多謝公開秘密!

[@takwong7016]

感謝龍Sir分享👍👍

[@m_mlautaitai3979]

長知識！謝分享

[@wongtszkit6274]

龍Sir 勁

[@hochingmartinchan4251]

龍sir講得好精彩😊

[@qqchu4212]

謝謝龍Sir提點

[@hochingmartinchan4251]

多謝rev 多謝龍sir 拍多啲好片

[@sir167]

謝謝！😊

[@edmondlau9773]

多謝支持☺

[@nickleleung]

實用！謝謝龍sir

[@poisonthrax]

感謝分享。希望有機會睇睇龍sir 分析一下當今既氫能車，同埋點樣睇豐田搞左部氫內燃機汽車出黎

[@matthewlee3206]

支持龍sir出書🎉🎉

[@handsomebbmok9691]

跟龍sir真係學到野。

[@erichtsoi]

Thank you 龍sir，又有嘢學到！

[@sir167]

謝謝！😊

[@edmondlau9773]

謝謝😊

[@mrho8654]

真正認識汽車的學者

[@JGarden-2010]

高温易燃，低温亏电甚至充不了电😊

[@lamlamlamleelee]

呢集真係好實用

[@jgl7190]

电动车一样可以冷气暖气一起出，制冷用压缩机，自热用发热丝。除雾的时候就是这样的工作状态。

[@sir167]

有些型號是用這方法，但比較耗電。

[@ukwah23]

多謝龍sir分享

[@ancelotephen]

龍sir 勁

[@garytang]

無左個波箱真係差好遠， 之前睇豐田改果部電86 真係好正

[@spongezack92]

Woah. This info is not being talked by many. Good to know! Thanks Lung Sir! 高质！！

[@SiuManWong-bl7qe]

多謝龍Sir，知識的重要!

[@jimmylin115]

我第一次看到呢个频道，值得订阅。

[@sir167]

謝謝！

[@georgewong2272]

Thanks Lung Sir 👍

[@RockNgan]

又真系冇留意过车内湿度喔……多谢龙sir分享！

[@gundamtoshido9273]

多謝龍Sir ! 🙏🏻🙏🏻👍

[@tsangpatrick923]

龍 sir 真有用 尤其贴隔熱纸 玻璃顶

[@raymond183]

龍sir 正呀

[@user-in8om7vn9x]

是马来西亚的观众！喜欢龍sir这类的知识分享内容，希望可以看到更多龍sir的video！上龍sir学堂

[@newbro]

十分有用的資訊

[@ry6187]

Good job.

[@ryancheng473]

真心學到野！

[@musiclaw1127]

龍Sir, IONIQ 個冷氣內循環自己係會熄，係咪因為佢感覺到車廂內濕度高，所以放鮮風入嚟，佢亦都有一個auto dehumid function 可以開關. 所以照你咁講，如果要舒服就開咗佢, 等佢適當時候入新鮮空氣去中和濕度和溫度?多謝指教。

[@sir167]

內循環自動熄，目的是保持車廂內有新鮮空氣，以免司機因二氧化碳濃度過高而困倦，這點對於行長途車很重要。