eli5 why ev car can’t make manual transmission. the real manual transmission that have clutch and so on.?
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They can, it’s just useless. It makes the car less efficient, less reliable, more confusing to drive, and heavier. Electric cars don’t need much of a transmission because electric motors are so much more flexible than engines.
They can, it’s just useless. It makes the car less efficient, less reliable, more confusing to drive, and heavier. Electric cars don’t need much of a transmission because electric motors are so much more flexible than engines.
There is no point.
A combustion engine only produces peak engine torque at a narrow range of engine speeds, so you need a transmission in order to be able to drive the car at the full range of speeds needed to drive on the roads. You literally couldn’t drive a combustion engine if it didn’t have a gearbox – a gear ratio of 1:1 is somewhere between 3rd and 4th gear on a manual, so you wouldn’t be able to start the car from a standstill.
Electric engines don’t need gears, because they produce useful torque at all engine speeds. Adding a gearbox is just adding weight and complexity and cost.
They can, it’s just useless. It makes the car less efficient, less reliable, more confusing to drive, and heavier. Electric cars don’t need much of a transmission because electric motors are so much more flexible than engines.
There is no point.
A combustion engine only produces peak engine torque at a narrow range of engine speeds, so you need a transmission in order to be able to drive the car at the full range of speeds needed to drive on the roads. You literally couldn’t drive a combustion engine if it didn’t have a gearbox – a gear ratio of 1:1 is somewhere between 3rd and 4th gear on a manual, so you wouldn’t be able to start the car from a standstill.
Electric engines don’t need gears, because they produce useful torque at all engine speeds. Adding a gearbox is just adding weight and complexity and cost.
There is no point.
A combustion engine only produces peak engine torque at a narrow range of engine speeds, so you need a transmission in order to be able to drive the car at the full range of speeds needed to drive on the roads. You literally couldn’t drive a combustion engine if it didn’t have a gearbox – a gear ratio of 1:1 is somewhere between 3rd and 4th gear on a manual, so you wouldn’t be able to start the car from a standstill.
Electric engines don’t need gears, because they produce useful torque at all engine speeds. Adding a gearbox is just adding weight and complexity and cost.
They don’t need them.
Transmissions are needed for internal combustion engine cars because ICE motors need to maintain certain RPMs to produce useful power. This is often a range of about 1000 to 7000 RPM… and worse yet the best power and best efficiency are at even smaller ranges (and those aren’t the *same* ranges).
The solution to this is to have multiple ratios of engine to wheel speed; 1st gets you moving from a dead stop and the top gear is for cruising at ~2000 RPM at highway speeds.
Electric motors don’t need this because they have a (nearly) ‘flat’ power curve; you can start from a dead stop, accelerate, and cruise at highways speeds all with the same gear ratio.
They don’t need them.
Transmissions are needed for internal combustion engine cars because ICE motors need to maintain certain RPMs to produce useful power. This is often a range of about 1000 to 7000 RPM… and worse yet the best power and best efficiency are at even smaller ranges (and those aren’t the *same* ranges).
The solution to this is to have multiple ratios of engine to wheel speed; 1st gets you moving from a dead stop and the top gear is for cruising at ~2000 RPM at highway speeds.
Electric motors don’t need this because they have a (nearly) ‘flat’ power curve; you can start from a dead stop, accelerate, and cruise at highways speeds all with the same gear ratio.
They don’t need them.
Transmissions are needed for internal combustion engine cars because ICE motors need to maintain certain RPMs to produce useful power. This is often a range of about 1000 to 7000 RPM… and worse yet the best power and best efficiency are at even smaller ranges (and those aren’t the *same* ranges).
The solution to this is to have multiple ratios of engine to wheel speed; 1st gets you moving from a dead stop and the top gear is for cruising at ~2000 RPM at highway speeds.
Electric motors don’t need this because they have a (nearly) ‘flat’ power curve; you can start from a dead stop, accelerate, and cruise at highways speeds all with the same gear ratio.
That would be totally useless. My Tesla can go from 0-155 MPH using a single simple reduction gear. Adding a clutch or transmission would add hundreds or thousands of additional parts for absolutely no benefit.
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