Tesla semi

[houstonscott]

So did a lot of other companies. There are lots of nice well balanced engines out there. Seems you quoted facts on a Porsche Engine some time ago did you not. Are we still awaiting verification?

HD motors were designed by Porsche.

 

[Egon]

HD motors were designed by Porsche.

And Harley had no input??

 

[toppop52]

Pretty immature thinking there vv. If you drop a match in someone's gas tank it will probably be as much your problem as theirs.


TBS

:laughing: Good point!

 

[toppop52]

The definition of Cool & trying to go back in time may be different. If long scruffy beards & a little white hair teased into a ponytail with simulated adornments on oversized black leather are cool go for it. Don't forget the little metal skull cap.

Do you know the difference between bike and rider? Your post indicates you might have them blurred, I壇 ride a V-Rod or similar, not many of their riders fit your description, neither do I. I do know cool, very well, not sure you do.

 

[toppop52]

wow, I tried to connect the dots TBS but couldn't. Even though we both were up late last night...
This is a transportation thread, not politics so I'm not going to respond or we will all get sidetracked.
I spent most of my professional career in insurance, seeing the results of every one's misfortune and for sure their
car fires. So I tend to see a lot of risk around me, trained to recognize it, evaluate it, and hopefully drive around it...

My posts tend to be long because I can type pretty quickly, so yeah some could see that as a lecture...sorry.

I must admit I am thoroughly enjoying this thread now that I did something I have never done since I joined here. I put a member on ignore, and now I don't have to get upset by the snarky and nasty comments. Delightful, it really works.

Gasoline gets nowhere near the respect it needs as a flammable liquid. One of our members just lost his small barn and all his equipment to a leaking gas line on a mower. We all know you can get diesel burning but you really have to work at. Gasoline, for sure it loves to burn.
So relatively, EV ought to be pretty safe. And safety of course is just one parameter but certainly an important one.

Yep, a gas fire from my utility tractor did all you describe, but my best friend had his car dealership near completely destroyed by a battery fire in 2013, batteries aren稚 all that safe either.

 

[aczlan]

EV accidents become superfund sites for pollution clean up. People are often burned chemically, and electrocuted first responder personnel is common.

Can you cite some sources for this statment? The testing done by the DOE/NFPA in 2014 would appear to show otherwise:

Appropriate PPE to be used for responding to fires involving EDV batteries:
a. Is current PPE appropriate with regard to respiratory and dermal exposure to vent gases and combustion products?
All tests were conducted using NFPA compliant turnout gear, helmet, boots, hoods, structural firefighting gloves, and full SCBA. No adverse conditions related to gear were observed by any of the firefighters who suppressed the fires. In addition, water and gas samples collected during testing did not include any compounds or gases that differed significantly from what is typically found in a conventional ICE vehicle fire. No projectiles or other explosion anomalies were observed. In two cases, due to an increase in the total volume of water to control the fire, the associated time was greater than what was available from a single SCBA cylinder. First responders should be prepared to either rotate suppression staff or have provisions to quickly change cylinders.

b. Is current PPE appropriate with regard to potential electric shock hazards?
An analysis of current and voltage measurements recorded at the discharge of the nozzle indicated no significant current or voltage readings in any of the tests. Based on the test data, full NFPA compliant PPE is appropriate during noninvasive suppression operations. However, tests were conducted with batteries placed in a VFT prop. Full-scale tests involving complete vehicle electrical distribution systems were not conducted and evaluated, nor were offensive firefighter tactics involving cutting, piercing, manipulating the vehicle for extraction purposes or to gain better access for suppression purposes.

c.What is the size of the hazard zone where full PPE, including respiratory protection, must be worn?
Based on the data collected, the hazard zone where full PPE, including respiratory protection must be worn was comparable to that of traditional ICE vehicle fires. The fire observed for tests that included the EDV battery as well as interior finishes/upholstery was more intense than the fire observed in the battery alone. Heat flux and temperature measurements recorded around the VFT indicate no data to support changing the 50-foot perimeter standard provided in the NHTSA Interim Guidance for Electric and Hybrid-Electric Vehicles Equipped with High Voltage Batteries

Aaron Z

 

[daugen]

Yep, a gas fire from my utility tractor did all you describe, but my best friend had his car dealership near completely destroyed by a battery fire in 2013, batteries aren稚 all that safe either.

was that because a battery was on a charger? Am curious how it got so far out of hand.

I once had a working boat engine room fire where the battery box for one bank of 4 huge 8 volt batteries had shorted against something in a hidden area.
Charred wires, charred wooden battery box, that sure got re-engineered when done. Someone had moved the main cable probably when changing batteries long before I had
the boat, so yeah, electricity can light up your life in all kinds of ways.

 

[cqaigy2]

While I can not speak to the long term potential for Tesla semi or other vehicles I do think they are helping drive what will be coming in the future vehicle wise where they remain a part of the solution or not. Self driving vehicles will become the future I expect over the next 20 years. I am currently testing the $59 Lane Departure and Frontal Crash warning system from AONE out of Korea that uses your Android Phone for the brain and camera. There are no car wiring cutting/splicing required because it just works off of the computer port under the steering wheel. Self driving/assisted driving tractors and combines have been around for a while.

A lot of newer technology will become mainstream by 2025 I expect. The EV will be part of these changes. Our EZGO golf cart that I use more like an ATV breaking system puts a bit of energy back into the batteries when one removes foot from the GO pedal. Gas and Diesel will be around for many years in many applications especially on the farm.

I was just having a discussion about the self driving cars with my wife. She's not so sure they will be safer, but i point out that we currently have "driver-less" cars on the road today so at least with self-driving car, there would be something paying attention.

 

[toppop52]

was that because a battery was on a charger? Am curious how it got so far out of hand.

I once had a working boat engine room fire where the battery box for one bank of 4 huge 8 volt batteries had shorted against something in a hidden area.
Charred wires, charred wooden battery box, that sure got re-engineered when done. Someone had moved the main cable probably when changing batteries long before I had
the boat, so yeah, electricity can light up your life in all kinds of ways.

Internal battery failure was the final word, no charger involved.

 

[toppop52]

Can you cite some sources for this statment? The testing done by the DOE/NFPA in 2014 would appear to show otherwise:


Aaron Z

Not doing the tests in the original vehicle or doing extraction maneuvers seriously degrades the test results.