Driverless Cars

[k0ua]

I think we need a law to limit what size motorcycles that deer can operate. I think 90cc should be the maximum.


Actually what I think we need to do is for a lot more people to get busy during deer season and "thin the herd". We all have way too many deer running around in our suburbs. I know there are way too many around me.

 

[3930dave]

I knew about the general issues with Li, but this page has some specific #'s and info

Charging Batteries at High and Low Temperatures – Battery University

That ^ is a Don't Care, if you never deal with Cold, but worth considering if you do....

Rgds, D.

 

[Gale Hawkins]

I knew about the general issues with Li, but this page has some specific #'s and info

Charging Batteries at High and Low Temperatures Battery University

That ^ is a Don't Care, if you never deal with Cold, but worth considering if you do....

Rgds, D.

Awesome info. I did not know to NOT charge if temps are at or below the freezing point of water.

 

[cqaigy2]

I think we need a law to limit what size motorcycles that deer can operate. I think 90cc should be the maximum.


Actually what I think we need to do is for a lot more people to get busy during deer season and "thin the herd". We all have way too many deer running around in our suburbs. I know there are way too many around me.

Obviously, the deer aren't crossing at their allotted locations.

 

[3930dave]

Obviously, the deer aren't crossing at their allotted locations.

People have called Hwy Depts to complain about where they locate the deer crossing signs......

Gotta admit..... pretty good argument for driverless cars right there ^.......

But, a quick tour of the web shows today's Dless cars don't do that well with deer.

Better solutions cost money; this is some of what was done in Ontario....

Ontario builds first bridge for animals near Sudbury | CBC News

Wildlife Monitoring (Highway 69 Large Animals) | eco-kare international

Better roads through technology, albeit just basic Civil Eng tech.....

Not surprised deer used the overpass, given how they like to run ridges......

Rgds, D.

 

[3930dave]

Awesome info. I did not know to NOT charge if temps are at or below the freezing point of water.

Guys up here learned pretty quick.... dead 'o Winter, don't leave the Li packs in the truck overnight, unless you wanted an excuse for not starting on time next morning..... Even if fully charged, capacity is down significantly at cold temps.

A decent Li battery/charge system should be fully temperature controlled; not sure about cheapo versions.

So, a good charger will protect the Li pack at low temps, but you are still left with a temporarily non-usable battery. You can toss a tool pack into a running truck to warm up....... larger items...... Hmmmmm :scratchchin:

Rgds, D.

 

[Reg]

I think the more realistic scenario may be that you come home from work and plug in for an evening/night charge.
The battery is WARM, since it has just got you home.
BATTERY temperature matters more than ambient temp.

Sitting outside my workplace for 9 or 10 hours ?
It RARELY gets to -20 C by late evening, so not something I would worry about.

Yes, gasoline powered vehicles are less efficient in colder weather too,.

 

[3930dave]

I think the more realistic scenario may be that you come home from work and plug in for an evening/night charge.
The battery is WARM, since it has just got you home.
BATTERY temperature matters more than ambient temp.

Sitting outside my workplace for 9 or 10 hours ?
It RARELY gets to -20 C by late evening, so not something I would worry about.

Yes, gasoline powered vehicles are less efficient in colder weather too,.

Points understood, and already widely known........ BATTERY temperature is what matters....... so pay attention when there is no heat-exchanger on the battery system, as not all EVs have them.

It's a matter of dependencies...... I can much easier prepare an ICE vehicle for situations like this.....

2, hydro customers still without power but ‘things are improving,’ Rob Ford says | Globalnews.ca

......than an EV. It would be interesting to see how many EV'ers are capable of charging at home, grid-down.

Losses from snow-tires and plowing through snow/spinning tires affect all vehicles. Anyone who has spent a Winter in Canada is well aware how fuel mileage decreases with an ICE vehicle. Despite my govts best efforts to make driving un-affordable, I can compensate for that, so long as my money holds out. Worst comes to worse, I can carry extra 5 gallon cans of fuel with me - something I do traveling in remote areas, even during good weather.

Many EVs are not tow-rated, and even the ones that are can't tow a cable reel big enough to plug in to high-power 220 once ranged out.......

Dependencies........ I may drive an EV one day, locally; beyond that, I'll have a generator with me.

Rgds, D.

 

[k0ua]

Obviously, the deer aren't crossing at their allotted locations.

I am not certain they can even read the road signs. Of course it does have the pictograph,.. They should be able to figure it out....

 

[cqaigy2]

I am not certain they can even read the road signs. Of course it does have the pictograph,.. They should be able to figure it out....

The cars or the "drivers"?