Not liking one pedal driving

[Rivian_Hugh_III]

Honestly I enjoyed having the ability it turn it off in the Id.4. rivian's 1 pedal driving is much better, but sometimes it's nice to coast on the highway, especially downhills in the mountains. And "matching your deceleration with the power meter" is not the same as coasting.

I love coasting in a car. That’s when I feel most free. Coasting up to the red light, down a hill. I think that may be because the engine noise hushes, and it’s just the forces of nature at work…. Momentum, wind, drag, gravitation. It’s like floating in space somehow. I hope the lack of engine noise in the Rivian will give this free feeling even more often. I guess part of the allure for me also is that my feet are off the pedals; it’s like the car and I are one in our drifting. Sounds like I won’t get that part on the Rivian.

I do wish Regen was mapped onto the brake so I could coast sometimes… perhaps even ocean coast along the forest edge at the foot of a mountain. It’s a bummer to me that won’t be possible.

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[NooterIA]

R1T is my first ev, I love the one pedal thing! ?‍

 

[milliemc]

I am not liking OPD in my new Rivian. I wish I could turn it off. I know that it saves energy but for me it is dangerous and annoying.
I have about 1200 miles and 2 weeks in my Rivian. The OPD will really throw you forward in your seat if you let all the way up while doing 25 mph or so. I breaks so hard that I worry about the car behind me hitting me. If I let up while looking to the left to clear for a merge it makes my head bob and is very disorienting.
It makes my passengers have a much less smooth ride. I am the smoothest driver in my family and seldom make anyone motion sick on the curvy roads to our lake cabin. But not with OPD, I just about made myself sick last weekend.
When I get back in a normal vehicle I get surprised the first stop I come to before I switch my mind back to normal driving. There are so many new things to get used in a new vehicle this just makes it that much harder.

I figured I would get used to it but I don't seem to be making any progress.

I am thinking of calling my guide and putting in a feature request but though I would get some feedback here first.

Well, we have a Tesla Model 3 and I love the one pedal--but we've had the car since 2020, so I have gotten used to it.

 

[_R1S_]

The reality is Rivian and tesla are too cheap to integrate blended braking into their cars. It's hard to do well, and there's a cost associated. Coasting is way more efficient. The Mach-E has the best of both worlds. Coast when you want, and press a physical button (one single tap, without even looking down) to shift into one pedal mode. Or just press the brake pedal, and the first part of the travel is full regen with no mechanical braking. What annoys me about Rivian and tesla is that i don't know when the mechanical brakes are engaging vice regen. If the mechanical brakes are operating, that's KW lost for nothing. I was surprised how early the Rivian kicks in mechanical brakes, which really hurts range.

 

[SoCal Rob]

…i don't know when the mechanical brakes are engaging vice regen. … I was surprised how early the Rivian kicks in mechanical brakes, which really hurts range.

How do you reconcile these two parts of what you wrote? You don’t know when the mechanical (friction) brakes are engaging versus regen… but you’re surprised how early the Rivian kicks in the friction brakes… which you admit you cannot recognize.

The only times my R1S has self-applied the friction brakes, as far as I know, is when I’m using adaptive cruise control and it needs to make a stop faster than regen can because of a sudden traffic slowdown. It has never used friction brakes when using one pedal driving with cruise control off.

 

[godfodder0901]

How do you reconcile these two parts of what you wrote? You don’t know when the mechanical (friction) brakes are engaging versus regen… but you’re surprised how early the Rivian kicks in the friction brakes… which you admit you cannot recognize.

The only times my R1S has self-applied the friction brakes, as far as I know, is when I’m using adaptive cruise control and it needs to make a stop faster than regen can because of a sudden traffic slowdown. It has never used friction brakes when using one pedal driving with cruise control off.

It also uses them for auto hold.

 

[SoCal Rob]

It also uses them for auto hold.

You’re right, of course. I should have quoted more for context because this was about range impact from slowing the vehicle using the regular brakes and auto hold doesn’t impact range. @_R1S_ was writing about how early the friction brakes are applied and the range impact, “I was surprised how early the Rivian kicks in mechanical brakes, which really hurts range.”

I’ve never experienced friction braking as part of one pedal driving when releasing the accelerator and without a safety system being activated: adaptive cruise control, AEB, etc.

If anything, when regen is reduced I wish it would apply the friction brakes to keep the slowing behavior the same. If it can’t capture the energy for regen due to system limitations then nothing would be wasted by using the friction brakes.

 

[blturner]

I now have over 24,000 miles on my truck and I have gotten used to one pedal driving. I still don't like it, but it no longer is distracting and is only slightly more motion sickness inducing. My ankle has gotten stronger so it not as tiring as it first was. I use the cruise a lot for relief.

I can't make sense of the comments about friction breaks while one pedal driving. As far as I know it only engages them after stopping with regen. But technically coming to a full stop with regen alone isn't possible. I thought that it was adding a little reverse throttle towards the end rather than using the actual brakes.

If you wonder what I mean by not being possible to stop with regen alone. The braking power is speed times current. Just like horsepower is RPM X torque. The speed creates voltage and the voltage creates current. As the speed nears zero so does the voltage and therefor the current.

 

[rivianUGA]

I am not liking OPD in my new Rivian. I wish I could turn it off. I know that it saves energy but for me it is dangerous and annoying.
I have about 1200 miles and 2 weeks in my Rivian. The OPD will really throw you forward in your seat if you let all the way up while doing 25 mph or so. I breaks so hard that I worry about the car behind me hitting me. If I let up while looking to the left to clear for a merge it makes my head bob and is very disorienting.
It makes my passengers have a much less smooth ride. I am the smoothest driver in my family and seldom make anyone motion sick on the curvy roads to our lake cabin. But not with OPD, I just about made myself sick last weekend.
When I get back in a normal vehicle I get surprised the first stop I come to before I switch my mind back to normal driving. There are so many new things to get used in a new vehicle this just makes it that much harder.

I figured I would get used to it but I don't seem to be making any progress.

I am thinking of calling my guide and putting in a feature request but though I would get some feedback here first.

Make sure you have your settings on REGULAR not HIGH for the regen breaking. It makes a big difference.

 

[_R1S_]

How do you reconcile these two parts of what you wrote? You don’t know when the mechanical (friction) brakes are engaging versus regen… but you’re surprised how early the Rivian kicks in the friction brakes… which you admit you cannot recognize.

The only times my R1S has self-applied the friction brakes, as far as I know, is when I’m using adaptive cruise control and it needs to make a stop faster than regen can because of a sudden traffic slowdown. It has never used friction brakes when using one pedal driving with cruise control off.

I don't know at what exact speed or deceleration force the mechanical brakes start being applied (mechanical brakes kick in at >0.3G's of stopping force on some other EVs), but I heard the clicking of the pads in the calipers while decelerating between 10-15mph. That clicking referring to the sound of the calipers engaging. That's what I mean. That is waaay earlier than any other EV I've owned. That's dumb, and doesn't allow me to maximize the range of my car.

I agree with @blturner it is fully motion sickness inducing. Especially with my GF driving who isn't as delicate on the pedal.

 

[SoCal Rob]

I don't know at what exact speed or deceleration force the mechanical brakes start being applied (mechanical brakes kick in at >0.3G's of stopping force on some other EVs), but I heard the clicking of the pads in the calipers while decelerating between 10-15mph. That clicking referring to the sound of the calipers engaging. That's what I mean. That is waaay earlier than any other EV I've owned. That's dumb, and doesn't allow me to maximize the range of my car.

I agree with @blturner it is fully motion sickness inducing. Especially with my GF driving who isn't as delicate on the pedal.

So, you’re talking about while using ACC or some scenario other than one pedal driving? Using one pedal driving without ACC, highway assist, AEB, or something else kicking in doesn’t use the friction brakes. If one pedal driving by itself did use the friction brakes, Rivian wouldn’t need to provide the on-screen warning and alert sound when full regen isn’t available.

Have you considered that what you’re hearing is actually something else? Clicking could be valves for the suspension activating as weight shifts. Also, you could probably have a passenger video the pedals as you’re driving. You’ll see the brake pedal move only when the friction brakes are applied as Hold is engaged.
edit:missed a word

 

[Count Orlok]

the only thing better than one pedal driving is three pedal driving. The Count thought you should know.

 

[Zoidz]

I don't know at what exact speed or deceleration force the mechanical brakes start being applied (mechanical brakes kick in at >0.3G's of stopping force on some other EVs), but I heard the clicking of the pads in the calipers while decelerating between 10-15mph. That clicking referring to the sound of the calipers engaging. That's what I mean. That is waaay earlier than any other EV I've owned. That's dumb, and doesn't allow me to maximize the range of my car.

I agree with @blturner it is fully motion sickness inducing. Especially with my GF driving who isn't as delicate on the pedal.

You are not hearing the sound of calipers clicking in - unless you have a major defect. Calipers/brake pads don’t click in, they move continuously. Automatic braking in an EV simulates you pressing on the brake pedal inside the brake controller. All it is doing is applying hydraulic pressure, exactly the same as if you were pressing the brake.

as mentioned above (unless you have a serious defect) the sound you are hearing is suspension related, presumably automatic ride height adjustment. Lock the ride height in and that sound will likely go away.

 

[milliemc]

I am not liking OPD in my new Rivian. I wish I could turn it off. I know that it saves energy but for me it is dangerous and annoying.
I have about 1200 miles and 2 weeks in my Rivian. The OPD will really throw you forward in your seat if you let all the way up while doing 25 mph or so. I breaks so hard that I worry about the car behind me hitting me. If I let up while looking to the left to clear for a merge it makes my head bob and is very disorienting.
It makes my passengers have a much less smooth ride. I am the smoothest driver in my family and seldom make anyone motion sick on the curvy roads to our lake cabin. But not with OPD, I just about made myself sick last weekend.
When I get back in a normal vehicle I get surprised the first stop I come to before I switch my mind back to normal driving. There are so many new things to get used in a new vehicle this just makes it that much harder. I love the one pedal driving, but it is different. So, I guess if you have tried it and feelitis a safety issue,

I figured I would get used to it but I don't seem to be making any progress.

I am thinking of calling my guide and putting in a feature request but though I would get some feedback here first.

I currently have a Tesla Model 3, 2020, waiting on my Rivian. I love the one pedal driving, but if you have tried it and feel, that for you it is a safety issue---most definitely contact them.

 

[_R1S_]

You are not hearing the sound of calipers clicking in - unless you have a major defect. Calipers/brake pads don’t click in, they move continuously. Automatic braking in an EV simulates you pressing on the brake pedal inside the brake controller. All it is doing is applying hydraulic pressure, exactly the same as if you were pressing the brake.

as mentioned above (unless you have a serious defect) the sound you are hearing is suspension related, presumably automatic ride height adjustment. Lock the ride height in and that sound will likely go away.

Whatever dude. I've been racing cars a long time. I know what the sound of pads moving fore and aft in a six piston caliper sound like.

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