10 Years Ago

The ghost of future's past

The ghost of futures past

On the eve of what will be a public admission of the catastrophic financial situation Detroit’s Big 3, and especially GM, have gotten themselves into (along with how our tax dollars are *DESPERATELY NEEDED NOW* to help them), I thought a little history lesson is in order.

Over the past 40 years, the new era of the electric vehicle has been heralded with the demonstration of sleek space age cars accompanied by exuberant press releases detailing the wonders yet to come.

The closest we came last time was in the early 90’s when defense contractors like Northrop and Lockheed Martin turned their considerable talents away from building Cold War death machines to leveraging their technical expertise into more commercially viable areas. The electric vehicle was a part of that plan and, funded with government money in the form of the Partnership for a New Generation of Vehicles (PNGV), some of the EVs of that time from the Big 3 had powertrains designed by people whose talents were previously poured into spy satellites, missile systems and submarine propulsion systems.

The US industrial complexes were remaking themselves to adapt to new technologies that would make possible truly low emission transportation.

In hindsight, the apex of this era can be traced to the debut of the NiMH powered EV-1 in 1998. This press release from GM shows how little has changed in ten years.

Notice the timeline of hybrids by 2001 and fuel cell vehicles by 2004 along with the announcement of Ovonics’ NiMH batteries, a technology nearly completely buried and forgotten even though it showed the best performance and has the longest track record powering electric vehicles compared to any other advanced battery technologies. Also note the series hybrid with 40 miles all-electric range and a small gas motor (a turbine in this instance) to extend range to 350 miles (Volt anyone?).

GM also had the graciousness to acknowledge the part played by government, “which contributed to the technologies unveiled today.”

Something to keep in mind as the Big 3 come, hat in hand, looking for your money again. This time simply to keep them alive. Where’s our return from last time?

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The best laid plans…

So as Martin and I were running around town shaking down the eMR2 the transmission went out.

There was a little jumpiness from the drivetrain creeping in earlier in the day but I figured it was due to the worn engine mounts.  Just before drive was lost the jumpiness was particularly bad but sometimes you just have to let something break to figure out what’s wrong.

Drive was lost taking off from a stop with a little pop and a zizzing, as if a spline was stripped, yet the transmission shifted OK.  None of the gears would work, simply producing the zizzing noise.  It’s hard to believe the coupler failed but it’s certainly possible.  The other possibilities include a stripped spline on the shafts or a catastrophic failure of the final drive.

So instead of videos of the car in action, I’ll have to entertain you with pictures of the transmission teardown when it happens in a week or two.

In other news, the bamboo/balsa frames for the velomobile came in and look beautiful but were built with the wrong thickness balsa core.  Recovery options are being conjured up.

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The eMR2 runs again!

Though it came in a rather ratty looking box and none of the fasteners for the cover could be found, I scavenged enough screws to fasten the cover on the inverter and put it back into the engine compartment where it belongs.  It ran a bit inconsistently at first, something I racked up to some bubbles in the coolant that triggered amp limiting due to temperature but once that was worked out it ran like I remember it-almost.  I think I have to get a few cycles on the batteries to wake them up again.  They were left inactive for about 6 months fully charged, but nevertheless it’s still a shock to the system that will take a few cycles to absorb.

For some reason, power wasn’t getting to the front of the car so no headlights, wipers or vacuum brake assist.  In the process of disconnecting everything to diagnose the inverter problem there must be something yet to be hooked up.

Once everything’s buttoned up I’ll post some video.

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