AEM EV management VCU200: http://bit.ly/D4A-vcu200
AEM EV management VCU300: http://bit.ly/D4A-vcu300
AEM EV energy distribution PDU-8: http://bit.ly/D4A-pdu8
CD Carbon Dashes EV: http://bit.ly/D4A-evdashes
On this video we’re doing one thing we’ve not completed on the d4a channel earlier than, and that’s to speak about battery electrical automobiles, and we’re beginning this subject BIG, with an enormous 30+ minute video that goes deep into the variations between ICE (inside combustion engine) automobiles and EV (Electrical Automobiles) aka BEV (Battery electrical automobiles). We will speak about efficiency, torque, weight, transmissions, upkeep, operating prices in addition to the long run facets for automotive fanatics. We’re even saying a number of phrases concerning the prejudice that appears to exist within the two opposed camps behind EVs and ICE automobiles.
However earlier than we will get EVs and ICE automobiles clashing face to face we first should get a bit extra accustomed to EVs. Apparently sufficient, to do this we will depend on the acquainted ideas behind parts in ICE automobiles, specifically the battery and the starter motor, which is an electrical motor we’ll be utilizing to higher perceive the electrical motor driving EVs. If we distinction the starter motor to the EV motor we will see that the EV motor is a 3 section induction motor (or everlasting magnet or IPM synRM motor in newer Tesla automobiles, or the Porsche Taycan, and even some entry-level EVs) which wants three section alternating present AC to run. In distinction to this the starter motor is a DC motor with brushes and commutators that should make direct bodily contact to function. The AC motor in EVs does not want any direct bodily contact. It depends on a rotating magnetic subject generated by three section AC within the motor’s stator to drive the rotor. This implies no brushes or commutators and it additionally means the AC motor is much more rugged, dependable, upkeep free and has an extended life expectancy in comparison with DC motors. However most significantly for the sake of our comparability AC motors have rotation of their core.
The engine then again must convert reciprocation into rotation. That is the arduous activity of the connecting rods and crankshaft and the place a whole lot of the load, complexity, vibration and losses of the ICE come from. That being mentioned, fashionable engine actually do vibrate little or no and configurations just like the inline 6 or the v12 are basically vibration free. A standard false impression that happens right here is that ICE is heavier when in comparison with EVs. Sure, an ICE electrical motor by itself weighs lower than a totally assembled engine, however to run the engine solely wants gasoline, gasoline tank and transmission (100-250kg), in comparison with this an electrical motor want batteries (500kg on the Tesla mannequin S for instance). On high of this batteries make DC energy which is not appropriate of an AC motor, so EVs additionally want an inverter to transform DC into AC and to fluctuate the pace of motor. That is why on common EVs are as a complete heavier than ICE automobiles. For instance, the 2018 and newer BMW M5 weighs 1990 kg in comparison with the 2200 kg of the Tesla mannequin S.
One other attention-grabbing facet that should be explored are the torque curves. The explanation why electrical automobiles can function with simply 1 gear of their transmission. The Tesla mannequin S P100D for instance has a max motor RPM of 18.000 rpm and makes usable torque for many of that rpm vary. The BMW M5 does make 750 Nm of torque ranging from solely 1800 rpm, however it redlines at 7000 rpm which is why it wants a number of gears. With simply 1 gear it will be redlining at 60mph. However the 1 gear factor is a compromise, you should select between acceleration and high pace. This explains why Tesla automobiles are so quick from 0 – 100mph, however are outrun by equal ICE automobiles from 100 to 150 mph. Tesla selected to favor acceleration with their gear ratio. That is additionally why the Porsche Taycan is presently the one EV with a two pace transmission. To keep away from the compromise between high pace and acceleration it has a second gear into which it routinely shifts at 60mph. The explanation why it outruns the Tesla even when it has much less energy and is a bit heavier.
What about operating prices? Certainly proudly owning EVs is cheaper as there’s much less upkeep? Properly EVs nonetheless have brakes, coolant pumps, transmission oil pumps, radiators and way more. They’re undoubtedly not upkeep free. The operating prices fluctuate throughout the globe and depend upon electrical energy costs in addition to the native taxation, registration and EV incentive insurance policies within the nation.
So are battery electrical automobiles the long run? Your guess is pretty much as good as mine. Are they wonderful? Positively. Have they got methods to go? Sure, however that is factor.
A particular thanks to my patrons:
Daniel
Peter Della Flora
Daniel Morgan
William
Richard Caldwell
Pepe
Brian Durning
Andrew Ruud
Brian Alvarez
Holset90
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#d4a #enginebootcamp
00:00 A Guess
02:43 AC vs DC
09:01 Engine vs Motor
14:40 Gears and Torque
22:53 Prices
26:24 Future and enthusiasm
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