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Old 04-23-2019, 10:10 AM   #3441 (permalink)
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Diyelectric uses a rule of thumb that kinda goes: weight in pounds divided by ten roughly equals power required to move car in average watt hours.

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Old 04-23-2019, 05:29 PM   #3442 (permalink)
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Thanks for your contributions Freebeard and Piotrsko. So I see that my calculation seems to give something between the two examples that you gave As you know, the motor consumption will be very variable depending on the instantaneous speed of the car. In my case, the usage that I have in mind would be a car running less than 100 miles per day, with a average speed of 15 to 20 MPH. My idea is that, thanks to this low speed, I should not have an heavy consumption (confer the calculation I put in my previous post), and also I hope to be able to drive 100 miles with no more than 15 KWH... But I don't know if this goal can really be reached...

Anyway, what about the plans and schematics of the Paul&Sabrina's AC Controler ? Do you know where I could find out these ressources ?
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Old 04-26-2019, 01:32 AM   #3443 (permalink)
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Quote:
Originally Posted by metallica View Post
Hello Piotrsko !

I calculated that with a 25 KW motor, I could move a medium sized car at this speed (60 MPH). I give you here some estimation that I calculated... Maybe someone can have an opinion about these numbers.
Your calculation is correct. I can provide real life fact also. My 28kW motor is able to get my 1200Kg Mazda MX3 to 180km/h speed.

That can be because the motor rating is actually continuous 1h rating. Motor can drain 80kW if i push it hard. I am not sure how much of that goes to the wheels, but it is enough my car is quite nimble.

Highway hill climb requires some 35kW to 45kW power at 110km/h.... depends on the grade.
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Old 04-28-2019, 04:55 AM   #3444 (permalink)
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Quote:
Originally Posted by arber333 View Post
Your calculation is correct. I can provide real life fact also. My 28kW motor is able to get my 1200Kg Mazda MX3 to 180km/h speed.

That can be because the motor rating is actually continuous 1h rating. Motor can drain 80kW if i push it hard. I am not sure how much of that goes to the wheels, but it is enough my car is quite nimble.

Highway hill climb requires some 35kW to 45kW power at 110km/h.... depends on the grade.

Hello arber333,

Thank you for your contribution, it interests me a lot to know these results based on a concrete case. I note these results, they are useful for me to evaluate the pertinence of my table of values. I will also try to improve this table to better take into account other parameters. It seems to me that my current calculations are a little too approximate

Did you realize the transformation of your car yourself?

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