To accelerate a vehicle we need to put kinetic energy into it and Power is the measure of how fast we can do that.
From a technical capability standpoint, torque is a useless measure. With a motor of a given power you can always gear it up or down to whatever torque you need (assuming a lossless transmission system).
If we take two identical trucks with 10k lb trailers on them and one’s a 800ft-lb diesel and one’s a 300ft-lb gas, both with 400hp, they sould realisticly accelerate and climb a hill at the same rate. The diference is the gas engine will be screaming at 6/7/8000 rpm and guzzling gas. (This also assumes no other factors like heat cone into play, the gas may not be able to maintain as much power due to cooling system designs or other factors).
Torquey-er engines also tend to feel better from a driveability standpoint but that’s not representative of capability.
What? Torque tells you what force can be applied at what distance from the center of rotation. Acceleration is a function of mass and force. Of course more torque is going to get you to accelerate faster.
Also wrong. If you compare two otherwise identical vehicles, the one with more power will both accelerate faster and have a higher top speed, assuming it has the gearing to use that power.
Stop getting all your vehicle knowledge from old top gear episodes.
It’s really cool how all you torque deniers keep having to insert the word “gearing” into your rebuttals as if you can’t tell that we’re talking about an electric vehicle itt.
Evs generally are direct drive, since the motor produces maximum possible torque all at once and there’s no need to introduce more complexity and loss with a gearbox.
The particular ev that is the topic of the thread doesn’t definitively state in writing that its four wheel drive system uses four motors with no gearing reduction for the cv axles, but their 3d models show exactly that.
So even if you want to argue about torque for an ice vehicle, in the case of this thread it’s a very appropriate and important measurement, especially given that they listed the maximum drain on the battery at 57kw insert big thinky emoji.
I love pedantry as much as the next person, but you can’t seriously expect me to believe that in a thread about a van, in response to people talking about a cars torque you invoked the idea of a transmission to mean anything from a big ol 18 gear peterbilt double shifter to a rear differential.
When people are talking about cars and they use the word transmission they mean the mechanical device that lets you select gear ratios. Sorry, I don’t make the rules.
If you want to die on the “everything with gears is a transmission” hill that’s your prerogative, but it requires that you accept everyone recognizing that you don’t even know enough about cars to speak in the vernacular.
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You’re both completely wrong. The only important measurement of a vehicle is spirit
I thought it was style, control, damage and aggression
And here I was thinking HP might be the Hit Points.
Only if you’re playing a mage. Otherwise you’ll want to know the vehicle’s HP, AC and THAC0.
Don’t forget to check your tires people that’s a lot of torque
Edit: wherever the rubber meets the road
To accelerate a vehicle we need to put kinetic energy into it and Power is the measure of how fast we can do that.
From a technical capability standpoint, torque is a useless measure. With a motor of a given power you can always gear it up or down to whatever torque you need (assuming a lossless transmission system).
If we take two identical trucks with 10k lb trailers on them and one’s a 800ft-lb diesel and one’s a 300ft-lb gas, both with 400hp, they sould realisticly accelerate and climb a hill at the same rate. The diference is the gas engine will be screaming at 6/7/8000 rpm and guzzling gas. (This also assumes no other factors like heat cone into play, the gas may not be able to maintain as much power due to cooling system designs or other factors).
Torquey-er engines also tend to feel better from a driveability standpoint but that’s not representative of capability.
What? Torque tells you what force can be applied at what distance from the center of rotation. Acceleration is a function of mass and force. Of course more torque is going to get you to accelerate faster.
Remember, power is torque times RPM, which is your accelerating force. It’s a functionally useless measurement without RPM.
An engine with half the torque revving twice as fast will make an equal amount of power, and accelerate equally fast.
Also wrong. If you compare two otherwise identical vehicles, the one with more power will both accelerate faster and have a higher top speed, assuming it has the gearing to use that power.
Stop getting all your vehicle knowledge from old top gear episodes.
It’s really cool how all you torque deniers keep having to insert the word “gearing” into your rebuttals as if you can’t tell that we’re talking about an electric vehicle itt.
Evs generally are direct drive, since the motor produces maximum possible torque all at once and there’s no need to introduce more complexity and loss with a gearbox.
The particular ev that is the topic of the thread doesn’t definitively state in writing that its four wheel drive system uses four motors with no gearing reduction for the cv axles, but their 3d models show exactly that.
So even if you want to argue about torque for an ice vehicle, in the case of this thread it’s a very appropriate and important measurement, especially given that they listed the maximum drain on the battery at 57kw insert big thinky emoji.
This platform is even worse than Reddit for confident idiots spouting absolute nonsense.
Show me one EV in production that doesn’t have a reduction in gearing between the motor and wheels at some point.
Gosh, as a confident idiot, you’ll have to remind me the effect a gear reduction has on torque which you’re claiming isnt important.
Don’t change the subject.
Okay:
It’s an ev. There isn’t a transmission involved.
You do understand a transmission doesn’t necessarily mean multiple ratios, right? A single ratio reduction gear is a transmission.
I love pedantry as much as the next person, but you can’t seriously expect me to believe that in a thread about a van, in response to people talking about a cars torque you invoked the idea of a transmission to mean anything from a big ol 18 gear peterbilt double shifter to a rear differential.
When people are talking about cars and they use the word transmission they mean the mechanical device that lets you select gear ratios. Sorry, I don’t make the rules.
If you want to die on the “everything with gears is a transmission” hill that’s your prerogative, but it requires that you accept everyone recognizing that you don’t even know enough about cars to speak in the vernacular.