Comments by "Joe Qi" (@i6power30) on "Engineering Explained" channel.

I find it frustrating is that they always measure efficiency in ideal conditions. If you want to maintain driver comfort in very cold winter nights, all these numbers mean nothing.
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There is also a consideration for heating both for cabin and cargo if the truck has to travel to northern regions in the winter. Some cargo items such as olive oil and other food items cannot be frozen too cold. Converting low energy dense battery into heat is quite inefficient considering weight to energy ratio. If they are smart, they should have a seperate fuel based heating system and preserve battery pack for driving only. Otherwise the range will be greatly reduced in cold weather.
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You won't get the temperature you set to in any weather colder than -5C. Basically the car will prioritize range over comfort. You can set it to 25. It will never heat up near it. Maybe 18-20 after long time. If you put it at max heat, maybe it'll reach 23-24. It's never as toasty as gas car as they have almost unlimited engine residual heat
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It would be interesting to conduct a study of EV owners body weight change before and after they switched from gas car to EVs. I know my father uses the EV more for very short distance trips for groceries, community centers than he owned a gas car. Even if it's just 10 min walk. Consequently he gained weight and developed heart issues. I think there should be an incentive to reduce number of unnecessary short car trips even it's EV. Walking or biking for short trips always better than even zero emission EV
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Elon musk is well known for lying and misleading marketing. FSD another blatant example
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Japanese keeps innovating on ICE which are dead end with no future.
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In cold weather efficiency there might be a trade off between insulation and weight saving. So it's not that simple to extrapolate that an theoretically efficient car under ideal conditions can also be efficient in the real world. Therefore this kind of test is not that interesting to me.
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Moral of story. Don't buy an EV from someone living in apartment.
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That's why PHEVs are better. You don't start that engine until you have to, and keep it running once you started until you can find a place to charge.
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Japanese and Germans love their olden glory days of internal combustion engine supremecy. They will create these pointless hydrogen engines just for nostalgia of moving pistons.
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Tesla model 3 rides very harsh, doesn't feel plush at all.
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@EngineeringExplained my parents had long range model 3 for a year and can't take the harsh ride any more and switched to much cheaper Chevy bolt which has much more pleasant ride. I guess performance is not as important to everyone.
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Thanks for exposing another Tesla lie.
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@w8stral yeah it's standard on diesel trucks but Tesla probably will be unwilling to put in a fuel based heater due to its zero emission goal, even though heating using fuel would be a lot greener then using battery as it will reduce total energy consumption per unit distance traveled.
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I wonder how many new EV owners knows all of this before they bought an EV. EV proponents say EVs require much less maintenance than gas cars but fail to tell you all the limitations and how finicky batteries can be
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@jakekarll8294 have you done rigorous comparison or just a personal impression? I think you are mistaken. I will not stoop down to your level of calling someone a liier without any proof
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@naderwater6380 or you could be inhaling junk food while charging. I'm more talking about short distance trips such as going to convenient store, small grocery runs, local parks etc. I always walked whenever I could when I had gas car, I still do even now with an EV. But I find myself tempted to take the car more every now and then especially as weather gets colder. But when I had gas car I had a stronger incentive to walk even in winter because I saved a couple bucks in fuel. Not so much with EV. In a way EV could be a curse in disguise if you are struggling with weight issues.
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@OGSumo precisely I agree that cities should be designed to be more walk and bike friendly, not just for cars. Let's hope this EV push won't diminish the effort to reduce car traffic in the grand scheme.
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@jamesengland7461 sure you can say the same with video games. It's not the object that made you unhealthy but if you spend too much time with it you will be.
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A car designed to prolong the range instead of keeping you warm and toasty in cold weather surely does not have a strong heater. It will claim to keep you comfortable only if you like to be in cold
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BEVs are not well suited for large heavy trucks or SUVs because of heavy batteries reduces efficiency. Perhaps, PHEVs are better design for large heavy vehicles if you are not taking it long distance drive very often.
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Typical German engineering. They don't think about how users use the product. They tell users how they should use it. If you leave the seat, just do it once, don't you dare sit back down again to confuse the car!
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@EzBz982 ok let me correct by saying it has a future. But a shrinking future
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@createachanneltopost this I completely agree. I'm not saying ICE will go extinct. But trying so hard to innovate an already mature technology only adds very small marginal improvements. These japanese companies should use their resources wiser and not waste on R&D on dead end technology
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@ΘάνατοςΧορτοφάγος is this your only car? Or do you have another gas car? PHEV makes a good use case for people to get rid of their 2nd gas cars.
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You don't say what temperature you set it to. Driving in EV in winter is not as warm as gas car. If you like really hot and toasty cabin EV is not for you. It's designed to maximize the range, unlike gas car that has almost unlimited residual heat from engine
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Electric heater is very weak and inefficient. You are ok if you are cold tolerant. If you want it really nice and toasty you need fuel based heater.
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@redbaron6805 it depends on how that electricity is generated. If it's from burning fossil fuel then it's less than 30% efficiency by the time all the transmission losses are taken into account. Whereas if you burn that fossil fuel in your car directly you will get much more heat 100% efficient heat per unit mass. Burning 1 litter of oil gives you much more heat than using that litter of oil to generate electricity then transmit into your car then run the resistive heating element. That's a lot waste. Heat pump can improve that efficiency but still no where near as burning the fuel directly. Also heat pump gets weaker as temperature drops below -5. Whereas fuel burning heat is as strong heat no matter how cold outside is
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@redbaron6805 yeah I totally agree electric cars are far more efficient for moving im not bashing electric cars and supporting ice cars. I'm simply saying that in terms of heat generation burning fuel is more efficient, that is burning fuel directly not in a engine with moving pistons etc. If you read my replies you should realize I advocate having biofuel burners heaters in electric car as an option for cold climate markets such as Canada and Scandinavia. 1lb of biodiesel or propane will heat your car for 5 hours with maximum settings, more if moderate and you can save your electric energy for locomotion instead wasting it in heating. Far more green than using all electric and zero emission cars. A little bit of emission at car level can save much more emission at power plants it's all about perception and marketing
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@redbaron6805 that's my point exactly. EV makers seem to be racing to put bigger and bigger battery packs to see who gets the most kWh. But if you use a fuel burning heater you can have 30% less kWh battery pack and still achieve the same range in cold climate. wouldn't it b be better for adoption in northern regions? It saves the cost as well as lighter vehicle thus more miles per kWh. Granted fuel burning heater is not useful for 90% market that's not northern Canada , Alaska and northern Europe, which is the main reason auto markers are neglecting this obvious solution. I'm not saying make this a standard equipment but for people living in cold climate who really need it, pouring a little bit of heating fuel is not that big a maintenance task. Also it's debatable about complexity, heat pump is arguably more complex mechanism than a kerosene or ethanol burner. The latter is long proven technology and should be more reliable in extended use as well. And there is no issues with refrigerants.
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@redbaron6805 glad you finally see my point. I live in Canada not the coldest part but still more than the year temperature go below freezing. I've owned 3 EVs including a Tesla model 3 and my impression is that they are fine in the summer but not optimized for winter. Having to endure sitting in the freezing temperature waiting to charge and constantly trying to conserve battery range but reducing thermostat and putting on more layers clothes. On those cold winter nights you surely do miss the"waste heat" of a gas vehicle that costs only half as much. That's why most EV owners here also have a gas car for winter. I would say that really defeats the purpose. In the end I settled for a PHEV now that I rarely turn on gas engine except when really needed in a cold cold days and have to go outside of my usual commuting range. But having a reliable heat source there surely put my mind at ease while not being wasteful having two vehicles.
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The problem with the hassle of changing tires twice a year and put aside space to store it. Space is money with todays real estate market.
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@gameworkerty obviously I mean with similar mileage, apartment.dweller would have used fast charger way more often than someone with home charging even if the home charging guy goes on road trips more.
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Pretty obsolete compared to EVs in both performance and fuel economy. What a waste of money.
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Like. Why are they still putting effort into these things when it's clear EVs are the future? These old mechanical engineers are in denial and want to preserve their jobs for as long as possible.
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Heavier EVs actually creates more air polutions from tire particles, this fact is conviniently not talked about by EV evangelists.
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@RonnieDenburg agreed. What I'm advocating are lighter EVs with smaller batteries thus shorter range but build out charging infrastructure so that range is not a big issue. The trend of big truck and SUV EVs are not green at all.
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The worse thing I about EVs are that since fuel cost is greatly reduced and to make the initial investment ""worthwhile", EV owners tend to drive more miles than when they owned gas cars, as they would avoid taking unnecessary car trips due to cost of fuel. EV owners also don't feel guilty when they drive more, they actually brag about how much fuel money they saved etc. Not only does this creates more traffic, more air polution from tire particles, but also bad for EV owners health. Instead of walking, they would take EV cars even for very short distance trips.
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@EngineeringExplained oh that's interesting. Maybe EV owners take less road trips because of range anxiety and lack of charging infrastructure but more frequent short trips. I'm afraid as number of EVs increase city traffic congestion will get worse as people will not feel bad taking unnecessary short trips because of low fuel cost whereas they would have chose to walk or bike or public transit when they had gas cars.
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