if the number comes first, we are talking about amps, if it comes after, we are talking about time. 5C is 5 times C a measure of the amps being drawn C/5 is really 1/5 * C and is also a measure of the amps being drawn C5 is the rate that discharges the battery in 5 hours C20 is the rate that discharges the battery in 20 hours I think.
Good explanation Dana! On 6/30/07, Dana Havranek <dbhavranek@...> wrote: > There's not much design involved with the adaptor plate. > Just a couple things to keep track of. > > One is to make sure the bellhousing holes are indexed to the center of the crank and the other is to calculate the thickness you need to position the motor shaft and coupling in relation to the transmisison input shaft. > It can be broken down into two separate problems. > > 6061 aluminum plate is nice to work with and be cut on a wood cutting band saw. > > If you do it by the seat of your pants, you'll have to come up with a way to index the plate to the center of the crank as you mark the bellhousing holes. If you are dealing with a transaxle and the transmission input shaft is not supported by a pilot bearing, you can index the plate to the transmission input shaft and mark the bellhousing holes directly on the plate using transfer punches. You just have to find a way to end up with an accurate location of the center of the crank or tranmission input shaft in relation to the bellhousing holes. > > Have to drill the right diameter holes through the plate with a drill press. > > A good way to split the adaptor plate problem into two separate problems is to incorporate a spacer ring. > > So you have to open up that accurately located center punch mark. little hole or big hole that locates the center of the crank / trans shaft to accept a spacer ring. > > Problem is how to accurately open up that center hole especially with the tools or limited machinery you might have. > You wil probably have to take it to a machine shop. If you have an end mill, it's possible to accurately do it. Not pretty or easy, but possible.(Continue reading)
"5C is 5 times C a measure of the amps being drawn C/5 is really 1/5 * C and is also a measure of the amps being drawn" "C5 is the rate that discharges the battery in 5 hours C20 is the rate that discharges the battery in 20 hours" You said that 5C is a measure of "amps being drawn" and that C5 is "the rate" that discharges the battery in 5 hours. But amps and rate is the same thing. The rate of electricity flowing is measured in amps. Amps is a measure of the rate of electricity flowing. Can anyone explain this? (Or me if I'm wrong) On 6/30/07, Jeff Shanab <jshanab@...> wrote: > if the number comes first, we are talking about amps, if it comes after, > we are talking about time. > > 5C is 5 times C a measure of the amps being drawn > C/5 is really 1/5 * C and is also a measure of the amps being drawn > > > C5 is the rate that discharges the battery in 5 hours > C20 is the rate that discharges the battery in 20 hours > > I think.
Three-Pase 4-pole AC electric motor. 90% average efficiency and 8-% efficiency at full power. Should be under technical specs which should be under engineering. On 6/30/07, Rob Hogenmiller <pgf@...> wrote: > What motor does the Tesla car, can't seem to find that info on the website? > > >
Oh, and check out the blog post "Motor City" if you want a great explanation of how the motor is controlled and other interesting info. On 6/30/07, Joseph T. <jat1793@...> wrote: > Three-Pase 4-pole AC electric motor. 90% average efficiency and 8-% > efficiency at full power. Should be under technical specs which should > be under engineering. > > On 6/30/07, Rob Hogenmiller <pgf@...> wrote: > > What motor does the Tesla car, can't seem to find that info on the website? > > > > > > >
From the Wikipedia entry for Tesla Roadster:
"Motor
* Type: 3-phase, 4-pole electric motor
* Max net power: 248 hp (185 kW)
* Max rpm: 13,500
* Efficiency: 90% average, 80% at peak power"
This "data" is taken from the rather vague "tech specs" page on
the Tesla Motors site, to which the Wikipedia article links.
It's an AC motor, produced IIRC by AC Propulsion.
The "AC Propulsion" article *sort of* backs me up on this. It
says, "Tesla have licensed technology from AC Propulsion". This
suggests to me that ACP is not actually manufacturing the motors for
Tesla. Who knows?
On 6/30/07, Rob Hogenmiller <pgf@...> wrote:
> What motor does the Tesla car, can't seem to find that info on the website?
>
>
>
I see that information, but no information on who makes them. ----- Original Message ----- From: "Joseph T. " <jat1793@...> To: <ev@...> Sent: Saturday, June 30, 2007 8:51 PM Subject: Re: tesla car > Three-Pase 4-pole AC electric motor. 90% average efficiency and 8-% > efficiency at full power. Should be under technical specs which should > be under engineering. > > On 6/30/07, Rob Hogenmiller <pgf@...> wrote: >> What motor does the Tesla car, can't seem to find that info on the >> website? >> >> >> > >
Motor City? ----- Original Message ----- From: "Joseph T. " <jat1793@...> To: <ev@...> Sent: Saturday, June 30, 2007 8:51 PM Subject: Re: tesla car > Oh, and check out the blog post "Motor City" if you want a great > explanation of how the motor is controlled and other interesting info. > > On 6/30/07, Joseph T. <jat1793@...> wrote: >> Three-Pase 4-pole AC electric motor. 90% average efficiency and 8-% >> efficiency at full power. Should be under technical specs which should >> be under engineering. >> >> On 6/30/07, Rob Hogenmiller <pgf@...> wrote: >> > What motor does the Tesla car, can't seem to find that info on the >> > website? >> > >> > >> > >> > >
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