Array
(
    [content] => 
    [params] => Array
        (
            [0] => /forum/threads/semis-changing-the-electric-motor-game.14405/
        )

    [addOns] => Array
        (
            [DL6/MLTP] => 13
            [Hampel/TimeZoneDebug] => 1000070
            [SV/ChangePostDate] => 2010200
            [SemiWiki/Newsletter] => 1000010
            [SemiWiki/WPMenu] => 1000010
            [SemiWiki/XPressExtend] => 1000010
            [ThemeHouse/XLink] => 1000970
            [ThemeHouse/XPress] => 1010570
            [XF] => 2021770
            [XFI] => 1050270
        )

    [wordpress] => /var/www/html
)

Semis changing the electric motor game

Arthur Hanson

Well-known member
The electric motor game is changing radically with gains in all areas from materials to structure to control systems and software that allow for substantial improvement in efficiency, performance, and size. This trend is supported by sophisticated control systems, sensors, structure, materials, and software. In short, intelligence is coming to the electric motor market that will create new demand for semis of numerous types. Just the replacement of existing motors will be a substantial market and new ones created by the increased efficiency, power, versatility combined with lower weight and smaller size. I have no doubt this is but one large market where the penetration of semis is still in its early stages. The electric motor market could be just like the internal combustion engine market which is now huge and totally relies on semis to the point they have to intermittently shut down due to the chip shortage. Just like IC engines, semis will totally change the electric motor market. It will be especially interesting to see how this may speed up the introduction of electric transportation of all types, land, sea, air, and freight, especially combined with advances in batteries.

 
Last edited:
With climate change and energy cost electric has a lot of potential. It will take engineers, scientists and production to be feasible.

I'll say this an electric vehicle is a smoother ride than a gas car.
 
The electric motor game is changing radically with gains in all areas from materials to structure to control systems and software that allow for substantial improvement in efficiency, performance, and size. This trend is supported by sophisticated control systems, sensors, structure, materials, and software. In short, intelligence is coming to the electric motor market that will create new demand for semis of numerous types. Just the replacement of existing motors will be a substantial market and new ones created by the increased efficiency, power, versatility combined with lower weight and smaller size. I have no doubt this is but one large market where the penetration of semis is still in its early stages. The electric motor market could be just like the internal combustion engine market which is now huge and totally relies on semis to the point they have to intermittently shut down due to the chip shortage. Just like IC engines, semis will totally change the electric motor market.

Turntide technologies is very fishy company with all signs of a silicon valley VC scam, unfortunately.

Unless they found out a better Maxwell equation, their claims are impossible to believe.
 
Turntide is a switched reluctance motor with integrated controller -- needed because these motors are an absolute pig to control and need sophisticated DSP algorithms which are beyond the capability of most motor suppliers (though not Tesla...), in return for exceptional performance -- which isn't needed for most applications which don't need hundreds of kW in the smallest lightest motor possible, which is most of the non-automotive market..

Unsurprisingly, when they compare them to standard induction motors they're a lot better performance, more compact and more efficient. It's notable that they don't compare them to PMAC motors, because they they wouldn't look anything like as good. They'd probably say their motor doesn't need expensive rare earth magnets so is cheaper and doesn't have material supply problems -- but then neither does Mahle's "magnet-free PMAC" motor which uses field coils instead of rare-earth magnets.

So not snake-oil, the question is where is their mass market and will they win over the competition...
 
Turntide is a switched reluctance motor with integrated controller -- needed because these motors are an absolute pig to control and need sophisticated DSP algorithms which are beyond the capability of most motor suppliers (though not Tesla...), in return for exceptional performance -- which isn't needed for most applications which don't need hundreds of kW in the smallest lightest motor possible, which is most of the non-automotive market..

Unsurprisingly, when they compare them to standard induction motors they're a lot better performance, more compact and more efficient. It's notable that they don't compare them to PMAC motors, because they they wouldn't look anything like as good. They'd probably say their motor doesn't need expensive rare earth magnets so is cheaper and doesn't have material supply problems -- but then neither does Mahle's "magnet-free PMAC" motor which uses field coils instead of rare-earth magnets.

So not snake-oil, the question is where is their mass market and will they win over the competition...
At around 7 years ago, I seen Chinese SRM motor vendors including constant torque controllers for free on good enough volume orders.

Those were sold for use in LSEVs, and tricycles.
 
Back
Top