Sponsored

Sudden Acceleration During Parking

R1Tom

Well-Known Member
First Name
Tom
Joined
May 19, 2022
Threads
37
Messages
3,621
Reaction score
4,862
Location
Wisc
Vehicles
Riv R1T
Occupation
Sales
Rivian, Please do not artificially gate launch control behind some stupid function that requires me to take my feet off the pedals and hands off the wheel and eyes off the road. It's stupid to do this and it's one of the reasons I got rid of the Hummer EV.
Completely agree.

It should be basic knowledge, if you apply both brake and accelerator, that the brake overrides the accelerator, up till the moment the brake no longer is being pressed. Then whatever position the accelerator is in, becomes the controlling signal. Any misuse of this is simply driver error.

I am not saying OP did this in any way...but commenting on putting launch mode behind some extra layer/s of controls to engage.

It would be ok however, whenever brake and accelerator are pressed at a complete stop....that the instrument panel shows a graphic and indicates that launch control is activated. Maybe even make a sound.
Sponsored

 

Goose

Well-Known Member
Joined
Nov 7, 2022
Threads
2
Messages
309
Reaction score
396
Location
Raleigh, NC
Vehicles
'23 R1T
Occupation
Clinical Research
Rivian, Please do not artificially gate launch control behind some stupid function that requires me to take my feet off the pedals and hands off the wheel and eyes off the road. It's stupid to do this and it's one of the reasons I got rid of the Hummer EV.
Wow. That's strong words, calling me stupid over just a random thought. I'm perfectly ok with Rivian keeping the launch mode as simple as brake and throttle, just a thought. You do you bud with your Hummers and 3 Rivians.
 

Dark-Fx

Well-Known Member
First Name
Brian
Joined
Jul 15, 2020
Threads
148
Messages
13,589
Reaction score
27,445
Location
Michigan
Vehicles
R1T, R1S, Livewire One, Sierra EV, R1S
Occupation
Engineering
Clubs
 
Wow. That's strong words, calling me stupid over just a random thought. I'm perfectly ok with Rivian keeping the launch mode as simple as brake and throttle, just a thought. You do you bud with your Hummers and 3 Rivians.
It's more about calling GM stupid for their "WTF Mode" theatrics that you have to go through in order to get the full power. Without doing it, you don't get full power.
 

Lpotter86

Active Member
First Name
Lee
Joined
Sep 17, 2022
Threads
1
Messages
37
Reaction score
56
Location
Swartz Creek, MI
Vehicles
R1T
Clubs
 
Do we have pictures of the aftermath of the OPs damage from the accident? Im to lazy to do the checking but as far as EVs go, hasn’t every “unintended acceleration” been found to be user error?
 

Donald Stanfield

Well-Known Member
First Name
Donald
Joined
Jul 31, 2022
Threads
59
Messages
8,309
Reaction score
16,657
Location
USA
Vehicles
2025 R1S Tri Ascend, 2024 i4 M50
Occupation
Stuff and things
Wow. That's strong words, calling me stupid over just a random thought. I'm perfectly ok with Rivian keeping the launch mode as simple as brake and throttle, just a thought. You do you bud with your Hummers and 3 Rivians.
Unless you are GM and came up with the WTF mode no one called you stupid
 

Sponsored

OP
OP

heekim1

Active Member
First Name
Heeshin
Joined
Dec 20, 2022
Threads
4
Messages
28
Reaction score
18
Location
Dublin,CA
Vehicles
Lexus NX300h
Occupation
software engineer
I tried to reproduce what happen (move back and forth) in a parking lot with my wife. I was not able to.
In this test, I realized that I did not set the regenerative brake mode to High.
I will try again with high.

Thank you
 

rivianguy

Well-Known Member
Joined
Jun 10, 2022
Threads
39
Messages
257
Reaction score
680
Location
Seattle
Vehicles
Rivian R1S
At around 330 in this video the Rivian creeps forward unexpectedly. Can't determine from video whether its operator error or something else but interesting recent video example of someone with low seat time in a rivian experiencing something similar.

Video
 

Dark-Fx

Well-Known Member
First Name
Brian
Joined
Jul 15, 2020
Threads
148
Messages
13,589
Reaction score
27,445
Location
Michigan
Vehicles
R1T, R1S, Livewire One, Sierra EV, R1S
Occupation
Engineering
Clubs
 
At around 330 in this video the Rivian creeps forward unexpectedly. Can't determine from video whether its operator error or something else but interesting recent video example of someone with low seat time in a rivian experiencing something similar.

Video
That was an experienced driver realizing he wasn't at the line yet
 

brancky3

Well-Known Member
First Name
Brandon
Joined
Feb 11, 2022
Threads
7
Messages
727
Reaction score
858
Location
Greenville, SC
Vehicles
22 CY R1T, 21 MachE GT
Occupation
IT
Rivian, Please do not artificially gate launch control behind some stupid function that requires me to take my feet off the pedals and hands off the wheel and eyes off the road. It's stupid to do this and it's one of the reasons I got rid of the Hummer EV.
Does "launch control" even do anything? I'll have to do a couple dragy runs with / without the brake pedal to see if it actually matters.
 

Sponsored

Dark-Fx

Well-Known Member
First Name
Brian
Joined
Jul 15, 2020
Threads
148
Messages
13,589
Reaction score
27,445
Location
Michigan
Vehicles
R1T, R1S, Livewire One, Sierra EV, R1S
Occupation
Engineering
Clubs
 
Does "launch control" even do anything? I'll have to do a couple dragy runs with / without the brake pedal to see if it actually matters.
It preloads the drivetrain, makes it hit a little harder. Mostly will see a reduction in the difference between 1ft rollout and normal 0-60 times. I don't know if it'll speed it up much after that but other auto manufacturers do with their launch controls.
 

brancky3

Well-Known Member
First Name
Brandon
Joined
Feb 11, 2022
Threads
7
Messages
727
Reaction score
858
Location
Greenville, SC
Vehicles
22 CY R1T, 21 MachE GT
Occupation
IT
It preloads the drivetrain, makes it hit a little harder. Mostly will see a reduction in the difference between 1ft rollout and normal 0-60 times. I don't know if it'll speed it up much after that but other auto manufacturers do with their launch controls.
Yea in other manufacturers I agree it makes a difference, but in my R1T it doesn't feel like anything is being preloaded.
 

lorenaferry

Member
First Name
Lorena
Joined
Oct 10, 2024
Threads
0
Messages
12
Reaction score
7
Location
Oregon
Vehicles
R1S
Occupation
engineer
My 2024 R1S just had a similar issue. My car malfunctioned and accelerated forward while I tried to stop it with my foot on the break. It only came to a stop once it collided with a parked car. The screens went blank for a min then came back with a message “service needed”. Rivian has pull the logs but we are getting to week 3 with no communication back to me about why this happened. I would appreciate some guidance from anyone in the forum. I was in the car with my daughter I she and I both saw my foot on the break! !! I was not imaging it.
 

VSG

Well-Known Member
Joined
Oct 3, 2022
Threads
4
Messages
3,231
Reaction score
6,036
Location
WA
Vehicles
R1T LE/RB/OC/20
Honestly, I don't know what happened in your case so I'm not judging. But ... be aware:

This sort of thing has been happening with all brands since time immemorial.

The most likely cause is that you were pressing the accelerator, maybe with the edge of your foot while you were braking at the same time. By "most likely" I mean that is what the vast majority of these reports, from all manufacturers, turn out to be. I've had this happen to me (minus the collision) two or three times with my E-350, and it's really disconcerting. With the Ford I think it's because the brake and accelerator are close and about at the same level. I haven't had that problem with my Rivian or any other vehicle.
 

lorenaferry

Member
First Name
Lorena
Joined
Oct 10, 2024
Threads
0
Messages
12
Reaction score
7
Location
Oregon
Vehicles
R1S
Occupation
engineer
Honestly, I don't know what happened in your case so I'm not judging. But ... be aware:

This sort of thing has been happening with all brands since time immemorial.

The most likely cause is that you were pressing the accelerator, maybe with the edge of your foot while you were braking at the same time. By "most likely" I mean that is what the vast majority of these reports, from all manufacturers, turn out to be. I've had this happen to me (minus the collision) two or three times with my E-350, and it's really disconcerting. With the Ford I think it's because the brake and accelerator are close and about at the same level. I haven't had that problem with my Rivian or any other vehicle.
Nope! Two people in the car looking at my foot on the break. The car malfunctioned and it’s a safety issue
Sponsored

 
 








Top