Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
I don't see any articles, or links to one. However, I'll say this, in response to what would make an EV "acceptable"....the ability to go 1000 miles on a charge, and the ability to fully recharge in no more than 2 hours, without costing any more than it would currently cost, to drive an ICE powered vehicle the same 1000 miles.
is this a reasonable ask considering that no car and certainly no truck can do 1k miles on a tank of gas?
There's a fellow at my work who just bought a Tesla. He was not looking to buy a car and in fact didn't need one, but his buddy bought a model 3 and let him check it out and the package was so overwhelmingly better than anything he has driven that he traded his car to buy a model 3.
I believe the age of the EV is upon us and Tesla is so far ahead of the other manufacturers due to a new way of making cars that is so far away from what people have grown to expect. Now if only they can be had for under $20k.
Stop. Self test is relatively simple and will be widely deployed. And protecting wiring systems is well known art. A truck manufacturer who begins to lose significant wiring at 5 years should be put out of business. Problems after 10 or 12 are reasonable. But earlier? Bad design or manufacturing.
And if you got a bad critical sensor the system simply won't move unless overridden by a human.
This is not hard stuff. When we get to fully unmanned it gets a bit more interesting. But even in the unmanned case as soon as there is suspicion the thing pulls over.
You obviously don't work in the truck business. Stop by your neighborhood Freightliner, Kenworth or Mack dealer one of these days and take a look at all the ragged-out trucks in those shops with numerous wiring and sensor issues. Protective covering, stand-off brackets and all the other tricks of the trade can only do so much for so long.
A majority of the trucks are in the shop for these types of issues, not problems with hard parts. Additional wiring and sensors (and emissions equipment) have been added in 2002, 2005, 2008, 2011, 2014 and 2018. It's crazy....and that's why glider kit sales remain so hot. So many people try to avoid buying the new trucks with all the wires and sensors on them.
You obviously don't work in the truck business. Stop by your neighborhood Freightliner, Kenworth or Mack dealer one of these days and take a look at all the ragged-out trucks in those shops with numerous wiring and sensor issues. Protective covering, stand-off brackets and all the other tricks of the trade can only do so much for so long.
A majority of the trucks are in the shop for these types of issues, not problems with hard parts. Additional wiring and sensors (and emissions equipment) have been added in 2002, 2005, 2008, 2011, 2014 and 2018. It's crazy....and that's why glider kit sales remain so hot. So many people try to avoid buying the new trucks with all the wires and sensors on them.
I have about 60 years of experience as an electrical engineer. That includes a couple of decades working on boats (my own) and the international standards for boat electrical systems. If you actually dealt with it you would discover it is at least as bad as a northern US one.
In general it is simple to protect control wiring. you simply shield it from the elements. We do it on boats all the time which exist in a salt water environment.
At this point in time if you are really worried go wireless. It is actually practical nowadays. I do not recommend it because the skills to diagnose problems are not those of the standard vehicle electrician. Though it is likely the path of the future.
But the general rule if a critical sensor is not working is you do not move. That would be absolutely required for the AV truck. If all cameras, radars, lidars, are not working the vehicle will not move. Pretty much the same as we do on passenger air planes.
That's a survey and those numbers are probably people who occasionally use transit not on a daily basis.
How about the 2017 American Community Survey? Ok, there are a small handful that barely top 10%.
Five percent of U.S. commuters use transit to get to work. New York City, with its extensive subway and rail system, is the big outlier here—more than 30 percent of workers get to their jobs by transit in greater New York City. The only other metros where 10 percent or more of workers commute via transit are San Francisco (17.4 percent); Boston (13.4 percent); D.C. (12.8 percent); Chicago (12.3 percent); Seattle (10.1 percent); and Bridgeport-Stamford, Connecticut (10 percent). https://www.citylab.com/transportati...t-bike/580507/
The data further supports that public transit is insignificant in most communities.
That's a survey and those numbers are probably people who occasionally use transit not on a daily basis.
How about the 2017 American Community Survey? Ok, there are a small handful that barely top 10%.
Five percent of U.S. commuters use transit to get to work. New York City, with its extensive subway and rail system, is the big outlier here—more than 30 percent of workers get to their jobs by transit in greater New York City. The only other metros where 10 percent or more of workers commute via transit are San Francisco (17.4 percent); Boston (13.4 percent); D.C. (12.8 percent); Chicago (12.3 percent); Seattle (10.1 percent); and Bridgeport-Stamford, Connecticut (10 percent). https://www.citylab.com/transportati...t-bike/580507/
The data further supports that public transit is insignificant in most communities.
The original assertion wasn't that public transit is insignificant in most communities.
The original claim was that "Mass transit has never resulted in fewer cars or less traffic."
Quote:
Originally Posted by oceangaia
Mass transit has never resulted in fewer cars or less traffic.
The original assertion wasn't that public transit is insignificant in most communities.
The original claim was that "Mass transit has never resulted in fewer cars or less traffic."
And the claim remains 100% true. Read it and weep.
The de Blasio administration says it’s committed to the Vision Zero goal of fewer and fewer car trips — but for every year of the mayor’s first term, car ownership in New York City increased. And that trend shows no signs of reversal. “Auto ownership is going up in New York City right now,” DOT Commissioner Polly Trottenberg told a crowd at the National Association of City Transportation Officials’ annual conference in Los Angeles, confirming DMV records. https://nyc.streetsblog.org/2018/10/...yor-de-blasio/
Don't bother to respond unless it is to show an example where the number of cars or the level of congestion decreased after adding public transit.
I have about 60 years of experience as an electrical engineer. That includes a couple of decades working on boats (my own) and the international standards for boat electrical systems. If you actually dealt with it you would discover it is at least as bad as a northern US one.
In general it is simple to protect control wiring. you simply shield it from the elements. We do it on boats all the time which exist in a salt water environment.
At this point in time if you are really worried go wireless. It is actually practical nowadays. I do not recommend it because the skills to diagnose problems are not those of the standard vehicle electrician. Though it is likely the path of the future.
But the general rule if a critical sensor is not working is you do not move. That would be absolutely required for the AV truck. If all cameras, radars, lidars, are not working the vehicle will not move. Pretty much the same as we do on passenger air planes.
EV's also need to fall under the guidance and scrutiny of an expert in the world of electricity and electronics such Underwriters Laboratories. People are now experiencing the best of what car manufactures are presenting in the Electric Vehicle market in order to get or maintain a foot hold in market share . As competition increases someone outside the automotive world has to verify quality and safety objectively.
Find the European and Asian equivalent of the U.L. and have the three publicize an on going version list for each manufacturers vehicle, safety standards and replacement parts. Establish battery life and availibilty of long term support standards on an international scale.
If you start measuring wire gage sizes in the different available EV's and compared them to U.L standards I'll bet the results would be interesting at very least. Millions of homes built in the U.S. 1950's have U.L. switches that are still turning lights on and off after 70 years safely and without a problem. Now is the time guarantee that the same quality is built into todays and future EV's before very costly electronic components demonstrate short lifespans without availability of replacements or standardization.
The problem overall is the control wiring has already got soy impregnated into the insulation. Here is a 1/2 million articles saying it wasn't a good idea.
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.
Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
To make EV's happen.
