Power-Split-Device (details)

john1701a · 01-28-2006, 10:40 PM

.

The 2 pages you see here (there are 4 total) reveal what I'm attempting to deliver. There are obviously no words yet. But if I did a good job with the illustrations, you shouldn't need them to understand what happens anyway.

THIS WEBPAGE ...provides a PDF that you can download to inspect the illustrations in full-size.

So... what do ya think?

Frank Hudon · 01-28-2006, 10:45 PM

Quote:

Originally posted by john1701a@Jan 28 2006, 07:40 PM
.

The 2 pages you see here (there are 4 total) reveal what I'm attempting to deliver. There are obviously no words yet. But if I did a good job with the illustrations, you shouldn't need them to understand what happens anyway.

THIS WEBPAGE ...provides a PDF that you can download to inspect the illustrations in full-size.

So... what do ya think?

[snapback]199691[/snapback]

John on the "startup the arrow on the pinion gear is pointing the wrong direction.

Frank Hudon · 01-28-2006, 10:50 PM

Quote:

Originally posted by Frank Hudon@Jan 28 2006, 07:45 PM
John on the "startup the arrow on the pinion gear is pointing the wrong direction.

[snapback]199693[/snapback]

in stealth the sun is turning the wrong direction.

john1701a · 01-28-2006, 10:53 PM

Quote:

Originally posted by Frank Hudon@Jan 28 2006, 10:45 PM
on the "startup" the arrow on the pinion gear is pointing the wrong direction.

[snapback]199693[/snapback]

Yes, I see the error. I figured there would be some, since simplification isn't ever simple.

By the way, thanks for the very prompt response!

And my illustrations are based on Graham's absolutely wonderful descriptions & animations, so a thank you to him too.

Frank Hudon · 01-28-2006, 10:55 PM

when accelerating if the ICE is running fast and the car is slow the pinion is turning the wrong direction. Cruising could well be right depending on speed of the car.

Frank Hudon · 01-28-2006, 11:07 PM

on startup when the ring (outer ) is stopped the pinions/planets on the planet carrier being engaged on the inner teeth of the ring are turning backwards in comparisson to the direction of the carrrier. They are turning on a shaft that is connected to the carrier. The easiest way to visulize this is to take a round object and hold it between two fingers to act as an axle now take your mouse pad and hold it upside down to simulate the ring gear and then rotate your hand it the direction of the carrier and you'll see the round object turn in the opposite direction.

jayman · 01-29-2006, 02:53 PM

Although planetary gearsets are durable and simple - given their durability - they are almost impossible to understand just by looking at an illustration.

You really have to pay a visit to a shop class - or an engineering class - to see a cutaway demonstration unit. Only then, by turning the crank, can you see just how the sun gear and planetary gears mesh and work.

Just don't poke your finger inside. That hurts.

john1701a · 01-29-2006, 06:13 PM

Quote:

Originally posted by jayman@Jan 29 2006, 02:53 PM
Although planetary gearsets are durable and simple - given their durability - they are almost impossible to understand just by looking at an illustration.

You really have to pay a visit to a shop class - or an engineering class - to see a cutaway demonstration unit. Only then, by turning the crank, can you see just how the sun gear and planetary gears mesh and work.

[snapback]199990[/snapback]

That's why I haven't attempted a document until now. Getting to play with a model at a Toyota sponsored Prius event is what impressed the heck out of me. I was amazed by the flexibility of that design... but baffled about how I could properly portray it without animation.

I'm hoping the heavily simplified illustrations I finally came up with, combined with short plain-english descriptions, will do the trick.

john1701a · 01-31-2006, 10:25 PM

The front page (of the draft copy) now has an illustration of the PSD from the side, helping to further explain the design through the use of images. See...

Frank Hudon · 02-01-2006, 12:02 AM

John can you please post it as a .pdf the text is so small I'm unable to read it. Thanks

01-28-2006, 11:07 PM	#6
Frank Hudon Senior Member Join Date: Jan 2004 Posts: 4,144 My Car: Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	on startup when the ring (outer ) is stopped the pinions/planets on the planet carrier being engaged on the inner teeth of the ring are turning backwards in comparisson to the direction of the carrrier. They are turning on a shaft that is connected to the carrier. The easiest way to visulize this is to take a round object and hold it between two fingers to act as an axle now take your mouse pad and hold it upside down to simulate the ring gear and then rotate your hand it the direction of the carrier and you'll see the round object turn in the opposite direction. __________________ You can quote me on this, People who drive vehicles that idle at a traffic light, are idiots. mine 2k3 avg. 5.36 for 46,915Km Best tank 4.4L per 100K 64.2 Imperial 53.4 U.S. gallon, MiniScanner, SilverStars, block heater, winter lips, in as of Oct 15, out on April 25. In again on Sept. 21st. her's 2k4 "B" avg. 6.01 for 42,317 Km Best tank 4.02L per 100K, CAN-view with OBD11 module and flashloader, SilverStars, 06 Chrome grill bar, Michelin HydroEdge, upper and lower grill blocker,upper out as of April 7, lower out on April 28. In again on Sept 21st.

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01-28-2006, 10:40 PM	#1
john1701a Senior Member Join Date: Jan 2004 Location: Minnesota Posts: 2,548 My Car: 2004 Prius Package: Pioneer #3 Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 3	. The 2 pages you see here (there are 4 total) reveal what I'm attempting to deliver. There are obviously no words yet. But if I did a good job with the illustrations, you shouldn't need them to understand what happens anyway. THIS WEBPAGE ...provides a PDF that you can download to inspect the illustrations in full-size. So... what do ya think?

01-28-2006, 10:55 PM	#5
Frank Hudon Senior Member Join Date: Jan 2004 Posts: 4,144 My Car: Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	when accelerating if the ICE is running fast and the car is slow the pinion is turning the wrong direction. Cruising could well be right depending on speed of the car.

01-29-2006, 02:53 PM	#7
jayman Senior Member Join Date: Oct 2004 Location: Winnipeg Manitoba Posts: 6,168 My Car: 2004 Prius Package: B Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 4	Although planetary gearsets are durable and simple - given their durability - they are almost impossible to understand just by looking at an illustration. You really have to pay a visit to a shop class - or an engineering class - to see a cutaway demonstration unit. Only then, by turning the crank, can you see just how the sun gear and planetary gears mesh and work. Just don't poke your finger inside. That hurts.

01-31-2006, 10:25 PM	#9
john1701a Senior Member Join Date: Jan 2004 Location: Minnesota Posts: 2,548 My Car: 2004 Prius Package: Pioneer #3 Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 3	The front page (of the draft copy) now has an illustration of the PSD from the side, helping to further explain the design through the use of images. See...

02-01-2006, 12:02 AM	#10
Frank Hudon Senior Member Join Date: Jan 2004 Posts: 4,144 My Car: Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	John can you please post it as a .pdf the text is so small I'm unable to read it. Thanks