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English => News => Topic started by: Redaktion on November 12, 2025, 17:40:02

Title: First mass electric car with all-wheel hub motors has no brakes or CV joints
Post by: Redaktion on November 12, 2025, 17:40:02
Chinese EV makers have been in a race to introduce the world's fastest electric motors, with BYD's Super e-Platform featuring a 30,000 rpm unit. After speed, the electric motor innovation has now moved to developing in-wheel placement, cutting dramatically on drivetrain components.

https://www.notebookcheck.net/First-mass-electric-car-with-all-wheel-hub-motors-has-no-brakes-or-CV-joints.1161478.0.html
Title: Re: First mass electric car with all-wheel hub motors has no brakes or CV joints
Post by: LouisJ on November 16, 2025, 18:49:19
I have difficulty with the increase efficiency of drive train of 30%. The current EVs drive trains have efficiency over 85%, closer to 90%. An increase of 30% would mean an efficiency over 100%.
Title: Re: First mass electric car with all-wheel hub motors has no brakes or CV joints
Post by: A on November 17, 2025, 00:42:12
Quote from: LouisJ on November 16, 2025, 18:49:19I have difficulty with the increase efficiency of drive train of 30%. The current EVs drive trains have efficiency over 85%, closer to 90%. An increase of 30% would mean an efficiency over 100%.

I think they likely meant 30% decrease in inefficiency. So 85% would become 89.5%.
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