Electric Vehicles?

[j_garcia]

Front brakes are around 70% of braking, but these are heavy cars. Drums are generally much heavier too, which does not help stopping distance.

I have 2 piece rotors on my STI; it drops unsprung weight at each corner by about 10 lbs per corner. Increased the cost, but they last longer as well.

 

[haraldo]

I got a BMW 730D with serious brembo disc brake all around ... I decided one day to test what the to max from 60mph, well ...... it was completely havoc, everything flying around, INSANE
the brake are so insane I don´t even know where to start .....

My opinion is that when VW apply dum brakes on their cars now they compromise security of drivers and pedestrians!

Worst caee, VW bring in old tech, maybe there will be a fatality because of VW cost savings

For me, clear NO.GO for VW anytime
Well, VW is ion the verge of going bankrupt too

 

[j_garcia]

I upgraded from Brembos to my AP Racing ones Most other cars feel like their brakes are lousy to me lol.

BMW definitely has some excellent OEM brakes. I was impressed by the brakes on a friend's M4.

 

[Matt34]

You don't 100% rely on the brakes with an EV now as you have regenerative braking that utilizes the motors, but that doesn't mean any modern car should have drum brakes. It has been a decades since I owned a car with drum brakes.

One thing that caught me off guard when I bought my brand new 2017 Tacoma was that they were still putting drum brakes on them.

 

[haraldo]

One thing that caught me off guard when I bought my brand new 2017 Tacoma was that they were still putting drum brakes on them.

 

[panteragstk]

One thing that caught me off guard when I bought my brand new 2017 Tacoma was that they were still putting drum brakes on them.

That is a surprise. I have disc brakes all around and my truck is a decade older than yours.

 

[Mikado463]

One thing that caught me off guard when I bought my brand new 2017 Tacoma was that they were still putting drum brakes on them.

I'm quite sure that's on the rear only, disc up front

 

[j_garcia]

It is a cost thing. Drum are cheaper for the company when they are making that many cars. Trucks are lighter in the back when not hauling stuff, so the rear brakes are less critical.

 

[BoredSysAdmin]

I've read a couple articles, basically a cost reduction benefit for the manufacture and since EV's can rely on regenerative braking the rear brakes are being used to a lesser extent.

My Ev9 has 3 adjustable regenerative braking levels, and I keep mine in the middle settings. As far as EV using fewer brakes, I don't think it would be cost reductions for the manufacturer, but for the consumer as I heard multiple sources confirm that EV vehicles, despite being heavier than their ICE cousins, actually need much rare brake replacement due to most (but not all) breaking coming from regeneration. The rotors and pads should remain adequate to stop heavy cars in emergencies.

 

[j_garcia]

My Ev9 has 3 adjustable regenerative braking levels, and I keep mine in the middle settings. As far as EV using fewer brakes, I don't think it would be cost reductions for the manufacturer, but for the consumer as I heard multiple sources confirm that EV vehicles, despite being heavier than their ICE cousins, actually need much rare brake replacement due to most (but not all) breaking coming from regeneration. The rotors and pads should remain adequate to stop heavy cars in emergencies.

I keep the Ioniq on level 3 regen. At first I didn't like it and kept it at 1, but it actually comes closer to engine braking via downshift while coming to a stop with 3, and I got used to it.

 

[BoredSysAdmin]

I keep the Ioniq on level 3 regen. At first I didn't like it and kept it at 1, but it actually comes closer to engine braking via downshift while coming to a stop with 3, and I got used to it.

I guess depending on the car and personal preferences. Level 1 is the same as ICE, Level 2 is some additional breaking, and Level 3 is hard breaking when not stepping on gas. As I said I keep mine on L2, as L3 seemed too aggressive, but I guess I could get used to it, but I doubt the benefit 2 to 3.

 

[j_garcia]

I guess depending on the car and personal preferences. Level 1 is the same as ICE, Level 2 is some additional breaking, and Level 3 is hard breaking when not stepping on gas. As I said I keep mine on L2, as L3 seemed too aggressive, but I guess I could get used to it, but I doubt the benefit 2 to 3.

And there is the unadvertised "one pedal" driving like Tesla. If you go to 3 and then click it again, it goes into that mode. That is pretty much the "lazy" mode and I don't like it at all. The first time I drove a Tesla Model Y with it on, it took a bit to get used to, but you can turn it off. It is on by default because that is the only way they meet their EPA milage rating.

Going from Level 1 to Level 3, I did see a difference in the reported range at full charge, but not sure it made a real world difference. Between 2 and 3, probably not much.

 

[BoredSysAdmin]

One more observation isn't related to EV breaking, but EV range is many EV owners complained that EV range drastically drops in cold weather. It seems that this issue is more related to EVs without heat pumps. My EV9 is equipped with a heat pump and this system makes EV heating much more efficient. I also clearly see that a change of a few degrees in heating does affect the EV range.

 

[j_garcia]

I think mainly EV range drops in the cold because people keep the heat on, defrosters, etc... that kills your range. What good are seat heaters if I can't use them lol.

 

[Matt34]

My wife uses regen level 2 and I like to switch it to I-pedal for around town. I'm seeing roughly a 20% reduction in range at freezing temps this past week. ICE engines also have reduced efficiency in below freezing weather.

We are expecting a cold front this weekend with highs in the low teens for 3-4 days. I'm going to charge to 100% Friday in case we lose power and need to use the V2L to run a space heater.

 

[haraldo]

There was a fatal accident in Sandvika outside of Oslo/Norway with a Volvo XC40, the car accelerated with 100% power and smashed out of a parking house in 40mph from the fourth floor onto the street, with the driver inside without seatbelts.

Police say that car logs show 100% throttle as the car smashed through the walls of the parking house.

And because of very tight parking, the driver had to enter the drivers seat from the passenger side.

It has been written now that 5388 of these cars have been called back because there may be issues with the car giving 100% throttle without the driver touching the gas pedal.

I don´t know the facts about the following but it is said that the car turns automatically on when you enter the car with the keys in your pocket, and.... you can turn the car into drive without touching the brake pedal

 

[j_garcia]

There was a fatal accident in Sandvika outside of Oslo/Norway with a Volvo XC40, the car accelerated with 100% power and smashed out of a parking house in 40mph from the fourth floor onto the street, with the driver inside without seatbelts.

Police say that car logs show 100% throttle as the car smashed through the walls of the parking house.

And because of very tight parking, the driver had to enter the drivers seat from the passenger side.

It has been written now that 5388 of these cars have been called back because there may be issues with the car giving 100% throttle without the driver touching the gas pedal.

I don´t know the facts about the following but it is said that the car turns automatically on when you enter the car with the keys in your pocket, and.... you can turn the car into drive without touching the brake pedal

If it is the same as the Polestar 2, which it is based on, then yes it would be "on" as soon as you get in. The car requires you only to step on the "gas" pedal. There is no on/off or drive button, but I don't recall if it required you to first step on the brake.

 

[haraldo]

If it is the same as the Polestar 2, which it is based on, then yes it would be "on" as soon as you get in. The car requires you only to step on the "gas" pedal. There is no on/off or drive button, but I don't recall if it required you to first step on the brake.

OMG, that is INSANE
And IMHO extremely insecure

I am just gonna test out the Volvo XC40 to see if it is this crazy insecure

 

[j_garcia]

OMG, that is INSANE
And IMHO extremely insecure

I am just gonna test out the Volvo XC40 to see if it is this crazy insecure

If I am not mistaken, Teslas are similar? There is a lawsuit here in our area for an incident related to that.

https://www.kron4.com/news/bay-area/tesla-trial-company-sued-after-toddler-crashes-model-x-into-mom/

My car has an on/off button and a stalk to put it in drive, neutral or reverse. You also cannot simply drive off, if you don't put your foot on the brake first, the car goes into accessory mode when you hit the power button.

Swerd was the one who purchased the XC40 and he had it for a few years.

 

[Dan]

Swerd’s Volvo was much older early 2000s and had a manual tranny so no danger of unintended full throttle