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Question about EV designs

  

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Hello everyone, I’ve been looking at upcoming EV vehicles and the different designs each manufacturer is coming out with. It seems like everyone is going with the “skateboard” design, with a large battery integrated into the frame and either 2 or 4 motors powering each wheel. However Jeep in their prototype vehicle actually kept the same frame/suspension setup and just bolted the electric motor onto the transmission. I’m no engineer, but to me it seems like that would be a better design than the platform others are using. With the battery and motor in the engine bay, it wouldn’t get damaged by hitting it from underneath like the low hanging fruit on the skateboard platforms. And also on heavier vehicles doesn’t the frame bend slightly, with a battery there in the frame wouldn’t it get damaged, or the whole chassis be too stiff? Also a battery that low on a vehicle would never be able to get submerged right? I guess the idea is, without a transmission or differentials or anything there’s not as much to break or change fluids on, plus I’m sure it’s cheaper to build? And it’s a lot easier to store a large battery in the frame I guess than to try and find areas to put it in the engine bay or under the seats or something

 

Im not in the market for a EV, I don’t trust their reliability yet, especially a new jeep EV. I’m just curious why others haven’t gone with jeeps prototype design, and why the “skateboard” setup is the standard amongst all the manufacturers


2 Answers
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My guess is that Jeep has to build it that way because it is a body on frame design, whereas the others are unibody. 

 


Well even the f150 ev uses the skateboard design


I think the is the decision point. Do they want body on frame or unibody. Skateboard is a fit for unibody. Body on frame not so much.


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Here is Jeep's company motto -

FASTER AND CHEAPER


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