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Thread: Interesting article on BMW's transition to EV .

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    Interesting article on BMW's transition to EV .


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    Great article, thanks for posting it

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    NavyDiver is offline Very Very Lucky! Gold Subscriber
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    Out running and had a little BMW glide past me. Never seen one like it before Only a short range I note.

    BMW i3 : Introduction

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    Most interesting is the last sentence:
    “The numbers of hours worked to make an electric motor are smaller than for a combustion engine,” said Carreiro-Andree, the BMW board member. “That’s a fact.”

    It's the economics that will be the death knell for ICEs. As production is ramped up EVs will become cheaper than ICE cars even without Govt subsidies or ICE taxes. Similar to renewables versus nuclear. Once EVs are cheaper, users will stop buying ICE cars, and most consumers are in cities where a low end EV has sufficient range. If they want to go on a long trip, they'll hire a longer range vehicle.

    Mike
    Our car: Fuji White MY13 D4 SDV6 SE 3.0 Litre, 8 spd auto.
    My car: Series 2a Workshop, 109 inch WB, ex mil., 1971. To be restored.
    Wife's car: Series 2a FFT, LWB, ex. mil., 1966. To be restored.

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    DiscoMick Guest
    Reading about Zero electric motorcycles, I noticed the statement their engines only have one moving part. That has to mean less servicing costs.

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    Quote Originally Posted by DiscoMick View Post
    Reading about Zero electric motorcycles, I noticed the statement their engines only have one moving part. That has to mean less servicing costs.
    Im pretty sure they have roller bearings & not shell bearings, so technically they should count the balls in the bearings as moving parts . But still , 2 bearings and one rotor , a bit less complex than this, and the water pump, turbos, alternator and AC compressor can be further broken into more parts.


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    Quote Originally Posted by goingbush View Post
    and AC compressor
    How does A/C work in an EV without a compressor?
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
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    Quote Originally Posted by Graeme View Post
    How does A/C work in an EV without a compressor?
    theres a few technologies , a scroll compressor is used in conversions, Tesla use reverse cycle aircon , compressor is similar to a domestic fridge. yep more moving parts, not as many as a ICE AC compressor though .

    EVTV Motor Verks Store: Benling 27cc A/C Scroll Compressor, Cooling and Heating, Benling

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    Hardly a bonus point for EVs, instead forced redesign of a component to fit with the EV's power plant which presumably could be fitted to ICE vehicles too.
    MY12 RRV 4.4 TDV8 AB, +LLAMS, +e-diff, +ACC stop/go. Produce LLAMS for LR/RR, Jeep GC/Dodge Ram
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    JDNSW is offline RoverLord Silver Subscriber
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    There is no necessary connection between maintenance/repair costs and number of moving parts. As a couple of examples - my freezer has now been purring away for 25 years. It has more moving parts in the compressor than has a simple electric motor, but the only failure over the years has been in the electronics.

    I could also point out that my 110 at 640,000km, the only engine repairs on the moving parts of the engine have been four repairs to the starter and another three to the alternator. (other repairs to the engine have been seals, gaskets and O-rings). The engine itself has far more moving parts than have either the alternator or starter, both of which are close to the electric motor discussed above.
    John

    JDNSW
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