Electric Powered S Class. - Page 2 - Mercedes-Benz Forum

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post #11 of 18 (permalink) Old 07-17-2007, 11:10 PM
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What makes this S Class hybrid possibility a big deal is that no else is offering a hybrid car utilizing a diesel engine. A neat combo! Now, MB needs to design electric a/c so the diesel won't have to run to keep cool; Toyota already has done this.

'87 300E: sold after 11years @ 230k & still on the road somewhere in rural Tennessee.

'94 C220 with 93k totalled 10/06 by hit & run broadsiding monster truck: not a scratch or bruise for me
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post #12 of 18 (permalink) Old 07-18-2007, 11:05 AM
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Actually, many Prius cars in the Portland area have been converted and there are several parking meters in downtown Portland that you can plug in your electric car for recharge (free for now).
Very interesting to hear about technology that is actually being implemented. I know what to look for the next time I am in Portland and my cell phone is dead Are the recepticals some sort of standard 110v outlet?

Interesting infomation on the Sprinter hybrid. I think the the Sprinter is one of the under publisized recent advances in automobiles with its current ultra efficient diesel. I personally believe the rumors that Mercedes felt it had to ship the sprinter under the Dodge nameplate as government agencies would be reluctant to suffer the negative publicity of maintaining a fleet of Mercedes.

I have never driven a Sprinter but they certainly do look very cool on paper. Any Sprinter owners here?
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post #13 of 18 (permalink) Old 07-18-2007, 11:24 AM
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Originally Posted by johnamoss
What makes this S Class hybrid possibility a big deal is that no else is offering a hybrid car utilizing a diesel engine. A neat combo! Now, MB needs to design electric a/c so the diesel won't have to run to keep cool; Toyota already has done this.

My experence with diesels are that they are not very desireable for short commutes as their efficiency doesn't start to be realized until they are up to operating tempature. It would seem to me that a diesel hybrid would seem to be a poor match.

My only Diesel experence is with Diesel pickup trucks. Great for hauling loads on longer trips but lousy for running to the store for a loaf of bread. Are my impressions wrong when it comes to modern electronically injected diesel passenger cars? Is the s-class a parallel or series hybrid implementation? (Parallel = Motor and engine work together on the driveline. Series = Engine runs generator supplying power to the electric motor. Like a diesel locomotive)

I have always liked the 300TD's and I have often considered owning one. One of the major selling points for me is, of course, the gas mileage. How do mid 80's vintage mechanically injected 300TDs perform in 15 minute commute to work type driving?

Last edited by oughtsix; 07-18-2007 at 11:28 AM.
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post #14 of 18 (permalink) Old 07-18-2007, 12:12 PM
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Originally Posted by oughtsix
My experence with diesels are that they are not very desireable for short commutes as their efficiency doesn't start to be realized until they are up to operating tempature. It would seem to me that a diesel hybrid would seem to be a poor match.

My only Diesel experence is with Diesel pickup trucks. Great for hauling loads on longer trips but lousy for running to the store for a loaf of bread. Are my impressions wrong when it comes to modern electronically injected diesel passenger cars? Is the s-class a parallel or series hybrid implementation? (Parallel = Motor and engine work together on the driveline. Series = Engine runs generator supplying power to the electric motor. Like a diesel locomotive)

I have always liked the 300TD's and I have often considered owning one. One of the major selling points for me is, of course, the gas mileage. How do mid 80's vintage mechanically injected 300TDs perform in 15 minute commute to work type driving?
Hey oughtsix if you repost the last part of your reply in the 123/124 forums you'll probably get lots of input. Some of the members have converted to biodiesel, so they're even happier, pick up some gas at McDonalds (for your car, not you! ).

Take care and enjoy the ride,
Greg

Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy; its inherent virtue is the equal sharing of misery. (Winston Churchill)
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post #15 of 18 (permalink) Old 08-01-2007, 10:37 AM
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IMHO the constant-speed diesels powering generator and charging battery bank to power electric motors used widely in buses are the best hybrid there is.
Carrying 300 lb of batteries on high-speed freeway ride will never make sense to me. We see what the future will bring.
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post #16 of 18 (permalink) Old 08-01-2007, 12:14 PM
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Originally Posted by Kajtek1
IMHO the constant-speed diesels powering generator and charging battery bank to power electric motors used widely in buses are the best hybrid there is.
Carrying 300 lb of batteries on high-speed freeway ride will never make sense to me. We see what the future will bring.
I quite much agree. The main thing should be to try to make use of the energy that is wasted on braking. Diesel engines anyway have a lot better efficiency on low loads than gassers, then it is still difficult to improve the efficiency for normal driving when the generator, accumulator and electric engine all have some inefficiency. Specifically when diesel engines often are not that big relative to the car size and then the low efficiency range is seldom used.
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post #17 of 18 (permalink) Old 08-01-2007, 12:53 PM
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I am skeptic about recouping braking energy at highway driving. When you cruise, the batteries get fully charged, so when you brake, where is the energy going?
I heard some economy diesels in Europe have auto shut-off when you stop at the lights. That might bring noticeable savings in city drive. Than it all goes down the drain if you have to use AC, what we do about 9 months every year.
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post #18 of 18 (permalink) Old 08-02-2007, 04:28 PM
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Ah, if you have a Toyota hybrid, you can enjoy electric a/c...

'87 300E: sold after 11years @ 230k & still on the road somewhere in rural Tennessee.

'94 C220 with 93k totalled 10/06 by hit & run broadsiding monster truck: not a scratch or bruise for me
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