eli5 why ev car can’t make manual transmission. the real manual transmission that have clutch and so on.?
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They could, but they don’t need to so why do it.
Internal combustion engines have what’s known as a “power band”. Basically the engine makes very little power under (around) 1500 RPM with the ideal power starting at 2500 (ish). That’s why you need to rev up the engine before shifting into first, because if you don’t the engine will stall.
Internal combustion engines also generally don’t love going above 6,000-7,000 RPM (depending on the particular engine) and often stop making their best power around 5,000 RPM. There’s issues with heat and friction that cause this. Often race car engines can go a lot higher, but that’s pretty rare.
So for an ICE car they typically want to stay between 2500 and 5000 RPM regardless of what speed the car is going. The transmission’s main job is to ensure that regardless of how fast the wheels are going, the engine is always between 2500 and 5000 RPM.
An electric motor does not have this “power band” nor do they stall. So with an electric car you get full force from 1 RPM all the way up. Speaking of up, sice electrical motors do not contain explosions they do not generate as much heat. Also because they do not have pistons they don’t rub metal against metal. So that means that they don’t have the same RPM cap as an ICE car would.
A tesla drive unit can go from 1 to (about) 16,000 RPM and be perfectly happy at any point along the way. There’s no reason for a transmission.
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