Sponsored

Rivian-WI

Well-Known Member
Joined
Jan 2, 2021
Threads
2
Messages
167
Reaction score
221
Location
WI
Vehicles
Volvo XC60
Interesting (and what I would expect from 4 separately controlled motors), the wheels stopped when up in the air.
 

Trandall

Well-Known Member
First Name
Travis
Joined
Jan 13, 2021
Threads
2
Messages
1,128
Reaction score
2,064
Location
Upstate NY
Vehicles
Rivian R1T, 2023 Mach-E
Occupation
Construction Management
Great post. I'm not an off road enthusiast but that is impressive to me.
 

Sponsored

electruck

Well-Known Member
Joined
Oct 6, 2019
Threads
69
Messages
3,497
Reaction score
6,466
Location
Dallas, TX
Vehicles
2023 Rivian R1S
@skyote note the cable danglies by the rear control arms have indeed been addressed.
 
Last edited:

electruck

Well-Known Member
Joined
Oct 6, 2019
Threads
69
Messages
3,497
Reaction score
6,466
Location
Dallas, TX
Vehicles
2023 Rivian R1S
Interesting (and what I would expect from 4 separately controlled motors), the wheels stopped when up in the air.
I wouldn't necessarily expect the wheels to stop spinning completely as that would imply the motors are being used to apply a reverse torque to prevent them from spinning freely which is slightly wasteful. Or perhaps they are appyling the mechanical brakes? I would certainly expect the motors to disengage in this scenario but am somewhat surprised the wheel doesn't continue to spin freely. Makes me wonder if they found a good reason to actually "brake" the lifted wheel or if this was done for customer perception (especially after all the comments about the tires spinning up in response to earlier AZ offroad videos).
 

electruck

Well-Known Member
Joined
Oct 6, 2019
Threads
69
Messages
3,497
Reaction score
6,466
Location
Dallas, TX
Vehicles
2023 Rivian R1S
Love the amount of suspension travel from full droop to approaching full compression.
 

skyote

Well-Known Member
Joined
Mar 12, 2019
Threads
55
Messages
2,725
Reaction score
5,647
Location
Austin, TX
Vehicles
Jeeps, 2500HD Duramax, R1S Preorder (Dec 2018)
For that terrain, that suspension looks SMOOTH!
 

Trandall

Well-Known Member
First Name
Travis
Joined
Jan 13, 2021
Threads
2
Messages
1,128
Reaction score
2,064
Location
Upstate NY
Vehicles
Rivian R1T, 2023 Mach-E
Occupation
Construction Management
Electruck, could it be that the independent motors default to regen when no power is applied and without inertia that would stop the wheel and not be a waste of applying power at zero torque? Not sure if I stated that correctly. Just a thought based on principles I learned from reading other threads.
 

Sponsored

electruck

Well-Known Member
Joined
Oct 6, 2019
Threads
69
Messages
3,497
Reaction score
6,466
Location
Dallas, TX
Vehicles
2023 Rivian R1S
Electruck, could it be that the independent motors default to regen when no power is applied and without inertia that would stop the wheel and not be a waste of applying power at zero torque? Not sure if I stated that correctly. Just a thought based on principles I learned from reading other threads.
Whether default or driver setting, that's actually a really good theory.
 

skyote

Well-Known Member
Joined
Mar 12, 2019
Threads
55
Messages
2,725
Reaction score
5,647
Location
Austin, TX
Vehicles
Jeeps, 2500HD Duramax, R1S Preorder (Dec 2018)
Whether default or driver setting, that's actually a really good theory.
Might even be that the truck is in an off road mode & knows it's going downhill. All wheels are probably in regen.
 

Rhidan

Well-Known Member
Joined
Nov 25, 2020
Threads
9
Messages
585
Reaction score
1,505
Location
Denver
Vehicles
R1T
Is that a KS sticker?
 

DucRider

Well-Known Member
First Name
Gary
Joined
Oct 21, 2019
Threads
17
Messages
1,652
Reaction score
3,143
Location
ORegon
Vehicles
Polestar 2, Ioniq, R1S
I wouldn't necessarily expect the wheels to stop spinning completely as that would imply the motors are being used to apply a reverse torque to prevent them from spinning freely which is slightly wasteful. Or perhaps they are appyling the mechanical brakes? I would certainly expect the motors to disengage in this scenario but am somewhat surprised the wheel doesn't continue to spin freely. Makes me wonder if they found a good reason to actually "brake" the lifted wheel or if this was done for customer perception (especially after all the comments about the tires spinning up in response to earlier AZ offroad videos).
Brake are applied (lights are on) until they get towards the bottom of the hill at the end of the clip.
 

kanundrum

Well-Known Member
Joined
May 2, 2020
Threads
217
Messages
3,976
Reaction score
12,107
Location
Washington, DC
Vehicles
Giulia QV, R1S (S00N)
Occupation
IT
Clubs
 
Whether default or driver setting, that's actually a really good theory.
HDC (Hill Descent Control) is probably taking over every thing at this point where all it needs is steering input.
Sponsored

 
 




Top