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#106
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Retmil,
Hyrdrostatic (HS) transmissions are used on Lawnmowers and tractors. I have 2 small 3 cylinder Diesel tractors of about 18 HP with HS. HS works good in a tractor because the ground speed is variable and the PTO speed is constant. This is a good characteristic for tractors but not too useful for cars. HS trans don't seem to give much increase in torque. My tractors both have gear transmissions along with the hydro to give more pulling power. If the torque and speed range in a HS was great enough, the gears would not be needed. Another characteristic of HS trans is that if the pedal is released, the wheels lock up and U need 2 controls for speed: one for the engine and another for the HS. Both not good characteristics for an automobile. Possibly these problems could be solved for automobile application but other solutions like CVT may be better and easier. P E H Last edited by P.E.Haiges; 10-01-2006 at 10:14 AM. |
#107
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i think you will find the hydrostatic thing absorbs a lot of the power. this will kill fuel economy.
the continuously variable trannys are very very fuel effecient. i wouldnt want one because it wouldnt be any fun to drive, but i have always seen the purity of the idea. i suppose if someone made one in a very fast car for autocross i would learn to like it. tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC] ..I also have a 427 Cobra replica with an aluminum chassis. |
#108
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If you run out of gas in the Honda Insight, can you use the batteries to make it to the next fuel station?
Ken300D
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-------------------------- 1982 300D at 351K miles 1984 300SD at 217K miles 1987 300D at 370K miles |
#109
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about running on batteries
I don't believe that is possible with the civic, but it can be done with the prius. At least with the prius and I believe it includes the civic, if you run those batteries down you've definitely shortened the life of the battery pack. As you know replacement costs are in the thousands so it's really a poor option. Most are saying toyota overdesigned the batteries but corrosion remains a problem. Instead of fixing the corrosion, most dealerships want to replace the battery for 3000-7000 dollars. Look for independent hybrid mechanic shops opening up in the future to keep these cars out of the salvage yards at a premature age.
Kevin 1979 240D 1984 190D Last edited by yellowbenz; 10-19-2006 at 04:01 PM. Reason: didn't read post completely |
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Looking forward to 2010...
I'm really interested in seeing what happens when Priuses and Civics and (what's the name of the little one?) start approaching the end of the battery's life. By that time, most will be in the gentle hands of their second or third owner, who will have paid about $2000 for the car. Most will not have gotten the care that our Benzes have gotten and may be fairly ratty.
If the cost of the battery pack exceeds what the person paid for the car, the chances are high they will drive the car into the ground and then junk it. Wait and see...
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
#111
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Quote:
As far as running the battery pack too low is concerned, that's not a concern to the driver. On my Civic Hybrid the electronics never let me discharge the battery below about 20%. In fact when you get that low (such as when climbing a long grade) not only does the electric motor quit helping out the gas motor, it also starts putting an extra load on the gas motor by recharging itself. I must say that especially when it comes to mountain driving, a turbodiesel is a vastly superior tool for the job compared to a hybrid. Hybrids are mostly useful in stop-n-go traffic.
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2004 VW Jetta TDI (manual) Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL |
#112
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i would enjoy an insight with a small four and a stick. no electronic stuff. i bet it would still do really great on fuel and with a four it would be pretty quick with its aluminum body and no battery pack.
tom w
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC] ..I also have a 427 Cobra replica with an aluminum chassis. |
#113
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Quote:
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1999 SL500 1969 280SE 2023 Ram 1500 2007 Tiara 3200 |
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