Who has or is planning to get an electric car / EV Talk

[AlaskaMoose]

Where as just a spark will ignite petrol.
Fortunately EV fires are very rare.

I’ve been driving mine for three years now and it hardly ever explodes (contrary to what social media would suggest!) 😀

A spark alone does not ignite gasoline, propane, and other liquid fuels. Such fuels need heat and oxygen to ignite. But what I was referring to was to "a thermal runaway" as not being the condition the Cybertruck experienced, at least according to the videos I saw. A short circuit in one of the battery cells can create a rapid increase in temperature inside the already "steel-sealed" cell (there is no oxygen in there).

The point of contact between the metal and rod of an arc welder is extremely hot, so hot it is that it melts the rod and creates very small explosions. In a similar fashion, a short circuit inside a battery cell can easily turn into a thermal runaway. In relation to the poster I was responding to: he is correct when saying that it is quite possible that the battery was not punctured.

That is all I was trying to say.

 

[JT2002TJ]

A spark alone does not ignite gasoline, propane, and other liquid fuels. Such fuels need heat and oxygen to ignite. But what I was referring to was to "a thermal runaway" as not being the condition the Cybertruck experienced, at least according to the videos I saw. A short circuit in one of the battery cells can create a rapid increase in temperature inside the already "steel-sealed" cell (there is no oxygen in there).

The point of contact between the metal and rod of an arc welder is extremely hot, so hot it is that it melts the rod and creates very small explosions. In a similar fashion, a short circuit inside a battery cell can easily turn into a thermal runaway. In relation to the poster I was responding to: he is correct when saying that it is quite possible that the battery was not punctured.

That is all I was trying to say.

Gasoline will ignite without heat or pressure, a spark is sufficient. As long as there is vapor. So a full container is less likely to ignite than a half empty container. There is Oxygen in every non-full rigid container (gas tank, Jerry can,…), and once exposed to the atmosphere, it is everywhere.

Did you mean diesel? If so, that is true, it does require pressure.

 

[jz0309]

My Ioniq 5 will be out of services for some time, happened at the dentist office when someone stating the 'accelerator got stuck' hit my car so hard, it moved it several feet to the side as well as over a parking bumper onto the curb.
And I got a POS ICE (Mitsubishi Mirage) for a rental - quite bummed ;(

 

[Apple fanboy]

My Ioniq 5 will be out of services for some time, happened at the dentist office when someone stating the 'accelerator got stuck' hit my car so hard, it moved it several feet to the side as well as over a parking bumper onto the curb.
And I got a POS ICE (Mitsubishi Mirage) for a rental - quite bummed ;(

View attachment 2469038

Sorry to see that. Hope the repair goes well. At least you weren't hurt which is the main thing.

 

[jz0309]

Sorry to see that. Hope the repair goes well. At least you weren't hurt which is the main thing.

very true about not being hurt, given the impact and moving the car (parking brakes apply automatically when out off) I'm fairly convinced, that if I had been in the car the airbag would have deployed ... but yea, happy no-one got hurt

 

[I7guy]

very true about not being hurt, given the impact and moving the car (parking brakes apply automatically when out off) I'm fairly convinced, that if I had been in the car the airbag would have deployed ... but yea, happy no-one got hurt

Ouch. Glad you weren’t hurt. The worst part of the experience is driving a rental car.

 

[JT2002TJ]

very true about not being hurt, given the impact and moving the car (parking brakes apply automatically when out off) I'm fairly convinced, that if I had been in the car the airbag would have deployed ... but yea, happy no-one got hurt

Sorry. Glad you weren’t in there…

 

[AlaskaMoose]

Gasoline will ignite without heat or pressure, a spark is sufficient. As long as there is vapor. So a full container is less likely to ignite than a half empty container. There is Oxygen in every non-full rigid container (gas tank, Jerry can,…), and once exposed to the atmosphere, it is everywhere.

Did you mean diesel? If so, that is true, it does require pressure.

Yes, that is true. Just keep in mind that gasoline can also self ignite after reaching a certain temperature. But regardless of flashpoint or self-ignition, if there is no oxygen it can't burn. Some examples: multi-fuel stoves that use gasoline/diesel fuel/kerosene. When you light the burner, only the fumes burn. The rest of the fuel inside the tank or the service pipe at home does not burn because there is no oxygen in there. Gasoline also has a low flashpoint of 45º F, so it is not a good idea to "light" a cigarette when pumping fuel into the tank, because of the fumes emanating from the tank are already exposed to the air (oxygen).

Have you seen the videos where "smoke jumpers" use flame thrower? To use a liquid fuel flame thrower one has to ignite a very small portion of fuel on the nozzle. This flame does not reach the pressurize liquid fuel in the tank, regardless of the tank is half-full or not. When you press the handle of some flame throwers, burning liquid fuel is projected at great distances. Release the handle and the burning fuel stops, but the pilot remains lit until you turn it off.

 

[The-Real-Deal82]

I can confirm our EV is crap in the snow but my diesel A4 is too. Both have too many anti skid systems that interfere. Lots of Range Rovers on the roads this morning doing laps like they are proving something which I found amusing lol. Snow melting fast just in time for work tomorrow 🤦🏻‍♂️

 

[Apple fanboy]

I can confirm our EV is crap in the snow but my diesel A4 is too. Both have too many anti skid systems that interfere. Lots of Range Rovers on the roads this morning doing laps like they are proving something which I found amusing lol. Snow melting fast just in time for work tomorrow 🤦🏻‍♂️

Snow tires help a lot. But given the few days of snow we get a year hardly worth it. We had about an inch or two. But it’s been melting. Not driving anywhere until Tuesday, so hopefully it’s gone by then.

 

[The-Real-Deal82]

Snow tires help a lot. But given the few days of snow we get a year hardly worth it. We had about an inch or two. But it’s been melting. Not driving anywhere until Tuesday, so hopefully it’s gone by then.

We’ve had about 4 inches where I am but all the roads are clear now, just the gardens with snow left. Yeah winter tyres aren’t worth the expense for the little we get and it’s probably why Britain comes to a halt on the rare occasions as everyone drives on summer tyres. I just make sure I get the shopping done and work from home if I need to. My wife said the EV just doesn’t comply in this sort of weather, has a strip and refuses to move so a typical German car 😜

 

[Apple fanboy]

We’ve had about 4 inches where I am but all the roads are clear now, just the gardens with snow left. Yeah winter tyres aren’t worth the expense for the little we get and it’s probably why Britain comes to a halt on the rare occasions as everyone drives on summer tyres. I just make sure I get the shopping done and work from home if I need to. My wife said the EV just doesn’t comply in this sort of weather, has a strip and refuses to move so a typical German car 😜

I’d like the option to turn regen off in the winter, but that’s not possible in my car. So I just control it with my foot as best I can.
But yes I mostly don’t drive in the snow more than 2-3 times a year with being able to WFH.
Most of our shopping gets delivered these days. Sometimes by an EV van.

 

[JT2002TJ]

I needed new tires, I picked up a set of Michelin CrossClimate 2’s for my TMY. They seem to have a long tread life, are awesome in rain, and are winter rated. I haven’t used them in snow yet (tomorrow we are supposed to have some snow), but have used them on hot days, cold days (20’s F), and in heavy rain. I love them, best street tires I’ve owned.

Summer tires in cold weather (snow or not) are terrible, as the compound is not designed for cold weather. You may not realize it until you put on winter rated tires. All season tires are better in winter than summer tires, but worse in the summer. Living in NY, we have 6-7 months of cold weather, so it is better for us to avoid summer tires unless you have a dedicated set of winters.

The downside to these tires are, they are directional, so you can only rotate front to back, unless you have them dismounted as part of the rotation.

When my TM3 needs new tires, I plan to get CC2 for it as well.

I have added a S3XY Knob (come with their commander) to my TMY and a S3XY commander + buttons to my TM3. This is a 3rd party company that interacts with the UI and opens up features that are not available, or may be buried within the UI. For example, in the US, we do not have rear fogs on the TM3/Y, it is just not available in the UI, but physically there and with S3XY you can turn them on. With this, I have the ability to adjust regen down to 0%. A feature Tesla took away to maximize the range rating. I will try out different regen settings and see how I like it.

I have driven in snow/ice with regen at max, it is definitely something that is manageable, but you have to drive MUCH more cautiously. I’m not sure I would like some drive my Teslas for the first time in snow/ice/heavy rain. If it was a vehicle without regen, I would be less concerned.

I read somewhere (not verified) that the US range ratings are averaged across all vehicle driving modes, if so, I can understand why Tesla would take the regen settings away (not that I like it, just that I get it). If not true, then I have no idea why they would. I think the performance models still have the ability in track mode, but I assume this is not part of the calculation as it is not for use on roads.

 

[Apple fanboy]

I needed new tires, I picked up a set of Michelin CrossClimate 2’s for my TMY. They seem to have a long tread life, are awesome in rain, and are winter rated. I haven’t used them in snow yet (tomorrow we are supposed to have some snow), but have used them on hot days, cold days (20’s F), and in heavy rain. I love them, best street tires I’ve owned.

Summer tires in cold weather (snow or not) are terrible, as the compound is not designed for cold weather. You may not realize it until you put on winter rated tires. All season tires are better in winter than summer tires, but worse in the summer. Living in NY, we have 6-7 months of cold weather, so it is better for us to avoid summer tires unless you have a dedicated set of winters.

The downside to these tires are, they are directional, so you can only rotate front to back, unless you have them dismounted as part of the rotation.

When my TM3 needs new tires, I plan to get CC2 for it as well.

I have added a S3XY Knob (come with their commander) to my TMY and a S3XY commander + buttons to my TM3. This is a 3rd party company that interacts with the UI and opens up features that are not available, or may be buried within the UI. For example, in the US, we do not have rear fogs on the TM3/Y, it is just not available in the UI, but physically there and with S3XY you can turn them on. With this, I have the ability to adjust regen down to 0%. A feature Tesla took away to maximize the range rating. I will try out different regen settings and see how I like it.

I have driven in snow/ice with regen at max, it is definitely something that is manageable, but you have to drive MUCH more cautiously. I’m not sure I would like some drive my Teslas for the first time in snow/ice/heavy rain. If it was a vehicle without regen, I would be less concerned.

I read somewhere (not verified) that the US range ratings are averaged across all vehicle driving modes, if so, I can understand why Tesla would take the regen settings away (not that I like it, just that I get it). If not true, then I have no idea why they would. I think the performance models still have the ability in track mode, but I assume this is not part of the calculation as it is not for use on roads.

Curious why you’d want to switch regen off on a track day? You’d normally have your foot on the accelerator or the brake, so regen would have little impact.

Also there is no tyre rotation possible on my i3s. Different size wheels front and back.

Also why no rear fog lights in the US? They have been compulsory in Surope for years.

 

[icanhazmac]

I needed new tires, I picked up a set of Michelin CrossClimate 2’s for my TMY.

What were you replacing? The Conti's?

 

[timber]

We mostly wear Summer tires all year long. Today for exemple it's raining and around 18:00 it's 16 outside (61F). During the night around 10 (50F). You could have that during the day in a really cold day. There were a few hours of snow in 2004.
Not bad considering it's almost the same latitude as Washington (just a refreshing swim eastwards).
My Model 3 still has its original Michelin e-Primacy which are among the worst I have ever had. They will be replaced in due time with either PremiumContact or Goodyear equivalent.

 

[jz0309]

Curious why you’d want to switch regen off on a track day? You’d normally have your foot on the accelerator or the brake, so regen would have little impact.

Also there is no tyre rotation possible on my i3s. Different size wheels front and back.

Also why no rear fog lights in the US? They have been compulsory in Surope for years.

Tire rotation is a Nort America thing, I know it doesn’t get done in Europe.
AFAIK rear fog lights are illegal in the US

 

[Apple fanboy]

Tire rotation is a Nort America thing, I know it doesn’t get done in Europe.
AFAIK rear fog lights are illegal in the US

Lots of people rotate tyres in Europe. As long as the wheels are the same size of course!

What do the US have against rear fog lights? Pretty useful in fog!

 

[jz0309]

Lots of people rotate tyres in Europe. As long as the wheels are the same size of course!

What do the US have against rear fog lights? Pretty useful in fog!

Let me restate re tire recommendation: here it’s part of the manufacturers maintenance schedule to rotate every x miles.
AFAIK that is not the case in Europe.

As for rear fog lights, don’t really know, in 30+ years living in CA I think I’ve seen 1 or 2 cars, and we do get plenty fog, and yes, very useful

 

[Tagbert]

Lots of people rotate tyres in Europe. As long as the wheels are the same size of course!

What do the US have against rear fog lights? Pretty useful in fog!

What is the benefit of rear fog lights?
It seems like it would just put glaring lights in the eyes of those following you but not give you any more light to see by.

 

[quagmire]

Curious why you’d want to switch regen off on a track day? You’d normally have your foot on the accelerator or the brake, so regen would have little impact.

Heat management.

You're already putting a high demand on the battery to deliver power which raises temps. Regen now adds more heat with little gain.

 

[Apple fanboy]

What is the benefit of rear fog lights?
It seems like it would just put glaring lights in the eyes of those following you but not give you any more light to see by.

When the fog is so thick you can’t see the car in front. The red fog lights make cars in front of you much more visible. Also helps you see the layout of the road if you are on unlit road.

 

[Apple fanboy]

Heat management.

You're already putting a high demand on the battery to deliver power which raises temps. Regen now adds more heat with little gain.

Ah that makes sense.

 

[jz0309]

What is the benefit of rear fog lights?
It seems like it would just put glaring lights in the eyes of those following you but not give you any more light to see by.

Increased visibility for the ones following you. If I recall rear fog lights are At least as bright as brake lamps, maybe even brighter. In dense fog it can be hard to make out a car ahead of you, say eg 100ft distance you can’t see regular rear light anymore. With rear fog lights, that distance might be 130 or more feet, big difference

 

[JT2002TJ]

Ah that makes sense.

As he stated, yes. Heat management. There is no need for regen as you are not trying to be efficient, you are trying to maximize speed and keep heat down.