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Old 01-19-2018, 07:44 AM   #1 (permalink)
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Albuquerque electric bus problems

Saw on the local news that albuquerque public transportation is being accused of wasting hundreds of thousands if not millions of dollars on unreliable breakdown prone electric busses.
I'm waiting for a link to appear, I saw it on the local news last night, so it's still pretty fresh.
So far all the links are all older and full of rainbows and unicorns taking about how wonderful they will be.

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Old 01-19-2018, 11:45 AM   #2 (permalink)
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Probably not an isolated case. I just assume most anything the government is spending my money on is wasted.
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Old 01-19-2018, 11:58 AM   #3 (permalink)
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What part seems to be more failure-prone on them? Does the failure rate eventually have some relation to weather conditions? I've never been in Albuquerque or anywhere else in the U.S.A., but have always heard about New Mexico and Arizona having extreme weather conditions, and probably the low humidity in the air and the high temperatures become an issue due to the cooling of those modern Lithium battery packs fitted to modern EVs in general.

BTW some Chinese electric buses had been tested in my hometown, but probably won't be adopted by local bus operators so soon due to the local power grid being quite prone to weather-related failure
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Old 01-19-2018, 12:16 PM   #4 (permalink)
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Major problem with the hybrid buses in London. The electric side is unreliable and prone to breaking down, thus leaving the diesels to run full time. Of course, the diesels were never designed to work that way and are pumping out more crap than the old buses did as the engines run flat out powering them.
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Old 01-19-2018, 12:22 PM   #5 (permalink)
It's all about Diesel
 
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Quote:
Originally Posted by Lemmy View Post
Major problem with the hybrid buses in London. The electric side is unreliable and prone to breaking down, thus leaving the diesels to run full time. Of course, the diesels were never designed to work that way and are pumping out more crap than the old buses did as the engines run flat out powering them.
Are them using a serial hybrid setup? I'm only used to Volvo hybrid buses with their parallel hybrid setup.
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Old 01-19-2018, 03:07 PM   #6 (permalink)
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Quote:
Originally Posted by Lemmy View Post
Of course, the diesels were never designed to work that way and are pumping out more crap than the old buses did as the engines run flat out powering them.
Now why would they do that? Every diesel I've ever seen puts out crap when it's accelerating, not so much when it's at steady load. Follow a semi as it downshifts going up a hill, for instance.
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Old 01-19-2018, 04:20 PM   #7 (permalink)
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Sonce this is coming out in the middle of winter I'm thinking it's probably not a excessive heat related problem.
The TV news didn't say what parts were breaking down.
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Old 01-21-2018, 09:51 AM   #8 (permalink)
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This link explains some of the issues.

https://www.abqjournal.com/1117548/a...-problems.html

JJ
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Old 01-21-2018, 02:44 PM   #9 (permalink)
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should have gone with hydraulic
just hook up a large gearotor pump to the second back axle and add an accumulator

I could probably retrofit a bus myself for about 15,000

also amazing efficient on recovery of momentum with hydraulic
on the order of 92 to 98 %

Last edited by ASV; 01-21-2018 at 03:15 PM..
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Old 01-21-2018, 04:55 PM   #10 (permalink)
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Quote:
Originally Posted by jamesqf View Post
Now why would they do that? Every diesel I've ever seen puts out crap when it's accelerating, not so much when it's at steady load. Follow a semi as it downshifts going up a hill, for instance.
Because they were never designed or optimised to function as the sole power units.

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