Just saw this article from SAE about in-wheel motors that lists the Elaphe motor used by Aptera, but does not actually mention the Aptera application. Only mentions Lordstown Endurance, which is no more in real production than Aptera.
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Thank you for the link to this article. It is very interesting. I am glad to finally have some reference to actual vehicle engineers and suspension designers. I am very familiar with in wheel motors. It is not anything new in the realm of motorcycles and e-bikes where we have been using them for the last 10 years. They have their advantages and disadvantages but are usually relegated to more budget friendly models because of the harsh ride they characteristically have because of the un-sprung weight.
I totally agree with:
"Perhaps the best near-term automotive application for IWM is the full-size SUV or pickup truck segment, where low end torque is desirable and expectations for ride comfort, handling and speed are less demanding than for cars. Lordstown Motors is electrifying each corner of the Endurance electric pickup truck with Elaphe-designed IWMs, making it the first commercialization of IWM in any automotive application – if the Endurance launches as planned in late 2021."
This is because handling and ride are defined by the ratio of sprung weight to un-sprung weight. So the heavier the moving mass (sprung weight) the better the characteristics would be. I see it perfect for large vans and buses where four wheel steering could make the use of four independently rotatable steerable wheels. The only other point that they really didn't go into is that the wheel is usually the part that sees the harshest impact energies. Not the most ideal place for sensitive electronics. At least when the motor and electronics are inboard, they will have the advantage of the springs and shock absorbers to buffer their vibrational impact. Thanks again Boxster.