I didn't like Jordan when he started with the fridge, but he has grown a ton, and the dynamic with Scott is excellent. I really enjoy their videos, great job!
That accessory air compressor looks exactly like the ARB compressor I bought specifically for pumping up tires on my 4x4 after they've been aired down for sand driving. ARB is Australian, like the part you showed.
Those front struts are a joint effort: the upper air spring part is from "United Kingdom" (1:46) and the damper section (Monroe-branded) from Poland. And about the 11th-hour aux air compressor: neither it nor the main suspension one are actively cooled, so if there were only one compressor, that leaves the possibility of the main one getting cooked from, say, pumping up a huge innertube at the lake, that would leave the truck dead in the water so to speak. So having the aux one is insurance against the bad "optics" of a Rivian on a tow truck...
You two are great together as presenters! I enjoy watching and learning from your detailed analysis. Great job guys! Would like to also see Jordan do a standing backflip🙂
I think we need to push this vid to everyone. I would surely enjoy to watch that back flip.These tear downs and detailed videos are great. Keep up the fantastic work.
Wonderful channel, and I’m certainly no mechanical engineer. Munro is so smart to employ such hugely well-educated and articulate young people. One does wonder how the USA can produce people of this high calibre at the same time as the USA has such enormous societal problems. So it is encouraging to see, from outside, that parts of the Nation work so extremely well. Good luck to the USA!
These two are the "A" team for presenting. Great chemistry, they compliment each other and it is apparent you get along. One other thing, Rivian is definitely over engineered. anyone who got the first generation has a vehicle probably worth twice if not 3 times what you paid for.
Really appreciate the added insight on how you would improve things. You two make a great team; presenting together makes both of you look even more insightful.
Yep, they appear largely symmetrical other than the pivot nut. Does the bolt have a shoulder so the two holes sizes are the same? Fully symmetrical? Or a common casting to be machined?
The rear LCAs are machined on both sides because they are the same part, just flipped for the other side, so it makes sense to be machined on two sides
I'm not a mechanic, do fiddle with my truck sometimes but mostly craft/maker stuff and always enjoy learning about systems and production components and processes.
Very informative. Thank you! As I am purchasing a Rivian the more technical information is out there the better the community will be. All power to Jordan and Scott.
My thoughts are that the reason they have two compressors is that the one used for the air suspension might not be rated for high duty cycle. And that if somebody was using the air compressor for extended periods or just using the air facility a lot. The service life of that compressor could be exceeded in a short amount of time. The cheaper compressor may actually be lower volume and rated for higher duty cycle.
Regarding the redundant machining on the Lower Control Arms: Are they maybe Mirrored (or are otherwise mostly the same)? so they have the same Part for both Left and Right, and the side where it goes is decided in a diffrent step where this blue Nut is added? Still Savings potential there, but this would allow for some more flexibility
The extra threaded holes are probably non-handed parts in a handed installation. Also interesting the origins of some of these parts. Struts from Poland, air compressors from Australia. Quite a lot of miles travelled before assembly!
You guys vibe so well together and you're so articulate. I bet you would do well if you guys got together and did a podcast; where you could talk about everything and not just cars. I'd certainly watch it.
I would worry about the security the electric parking brake can provide in the Rivian compared to a mechanical one on other vehicles in offroad environments. It is common knowledge you park with your rig locked into 4WD when parking on steep offroad areas. This allows all four wheels to participate via the drivetrain in keeping the vehicle from moving. Seems the Rivian would only use the back wheels, given the greater weight of the Rivian, it might slide down a hill dragging the back wheels the whole way. I've seen it happen to Jeeps that were parked in 2H, it can and will happen with the Rivian. Would be nice if that motorized park brake was on all four wheels. Maybe this is a change that can be put into a future model of theirs.
Our Czech Tatra trucks have had the pneumatic suspension since I was a boy - at least 50 years. Also their rear wheels were always on half-axle driven from the central column, so they were roding on their outer wheel rims when unloaded. But sometimes since 1980+ uears they added that pneumatic suspension to those rear wheels so when the truck was empty, the air pressure cushion got lowered and this this old funny setup was fixed and imho is better system than other trucks in general.
I love to see the analysis of what is but also the considered thoughts about what could be. Integrating components saves weight, adds strength, simplifies assembly, and reduces production costs.
In some cases it also increases repair cost, but Munro is never concerned with that - their purpose is to reduce manufacturing cost, regardless of the consequences for the vehicle owner.
Use the same compressor for suspension and for air inflation? Yes - VW in 2004+ with the Touareg. However, if you want to use the compressor a lot, having a separate air compressor that is not critical to vehicle functionality is a nice idea.
Are the lower control arms and struts the same part numbers? Is it possible those additional machined perches are there so the part can be used on either side?
17:50 Consider the two motor variant and the R1S. The suspension could be designed to carry the components for the two motor variant of the R1. There might also be a different component configuration for the R1S using shared parts.
air tanks have moisture and corrode over time I would want that to be a replaceable part and not part of the main structure. some times i really think there ideas are making something faster and cheaper to built but its also a cheaper product with possible long term problems.
Great video, I like to give a suggestion as well, it would be nice while you are speaking about the different parts also share where they are made and who have made them, (as some of them can be discovered from the stickers on them even in this video).
Great work , Both these guys work well together , and no doubt both could work well with anyone on the Munro family. Would love to more videos with Sue and Sandy. Seems like Sandy doesn’t mind passing the ball to some of the younger talent , I am sure in Sandy’s mind that if in the near or far future if his health falters he wants to have several talented young people keep the company moved forward. Please do give us a backflip maybe an unexpected one in front of Sandy and Sue to get the looks on their faces. Cheers to all at Munro.
I believe it was about 30 or 40 years ago that GM/Chevrolet gasoline powered medium duty trucks went to the AutoPark Brake System powered by an electric motor to replace the parking pawl in the transmission. You saw these in the P-Series Van Chassis used by delivery companies (UPS, FedX, Bakeries, Fritos, SnapOnTools, etc, etc), Ambulances and Motor Homes. Transmissions without a parking pawl are not a new thing that just recently came about due to electrification and have been widely used in many vehicles providing for our daily needs and emergency services using automatically activated electric parking brakes with no parking pawl in the transmission on the road in the US for almost four decades now.
I didn't know that medium-duty trucks had already gone this way - thanks! After quick web search it appears that this system was used when GM 4L80E were used on trucks too heavy for that transmission's parking pawl, and with transmissions that didn't have parking pawls (e.g. Allison 2100). At least some (probably all) of these systems use a dedicated drum brake on the transmission output shaft, not parking brakes at the wheels.
@@brianb-p6586 That single brake drum on the drive shaft was a problem unless the rear differential was a fully locked differential since with a regular unlocked differential all you needed was for one rear wheel to loose traction and then you'd have no more parking brake. The automatic system that securely sets both rear brakes is a huge improvement over the early systems or even the parking pawl. No danger of dropping the drive shaft trying to engage the new system when the vehicle is moving.
@@neilfromclearwaterfl81 I appreciate the advantage of parking brakes on individual wheels, but my motorhome (on a 2008 Ford F53 chassis) has just a drum brake on the driveshaft as a parking brake (operated by a typical foot pedal), in combination with a transmission parking pawl (in the 4R100 automatic transmission). This is not uncommon, or unique to automatic transmission vehicles without a parking pawl. In the case of the F53, the driveshaft-mounted drum is used because the fixed-caliper disk brakes on the rear axle do not include a parking function, and Ford (or Dana) chose not to add separate parking calipers. It works for us, so far. The driveshaft-mounted parking brake should not be capable of exerting enough torque to damage the driveshaft.
@@brianb-p6586 Automatically or rather Manually Activated and Electrically Applied in an emergency situation such as with loss of hydraulic brakes at speed the old autopark system (which the older F53 did not have) has been noted as too aggressive since it cannot really be modulated like a foot or hand operated brake so its either full on or completely off. It can lead to loss of directional stability and can result in dropping the driveshaft especially on a high mileage vehicle or an older unit run in the Salt Belt. I have maintained and owned both P-30 and F-53 along with GM and Ford Super Duty trucks. Had one driver go over the guardrail when the driveshaft tube failed and dug into the pavement flipping the truck over and down into a swamp however thankfully he just got a few scrapes and bruises. That failure was on a truck that was less than a year old. On the disc brakes not having a park brake function, thats at the discretion of the chassis builder since you can stack a drum with the disc or have a secondary caliper such as the 120 series Wildwood mechanical parking brake calipers or get a caliper with a cam lever or other actuator on it (cam lever option has been available since at least the 1960's) to provide park/emergency braking.
I think Tesla should have updated the Citroen hydraulic suspension system. With two electric pumps there would be no need for a hydraulic accumulator. It could power suspension, brakes, steering and even give a basic active suspension.
Thank you! I’ve owned cars without park pawls for over 40 years……with only a few edge case events😎 Those small redundant bosses on the suspension look like mounts for height sensors?
My worrirs about using only the brake: People are cheap and skip maintenance regularly. If the pads or rotors are too worn, you want that redundancy. Backyard mechanics will need an option when maintaining the rear brakes. The weight makes most tire chucks useless, hopefully they figure that out
Are the rear lower control arms identical? If so, they would be turned to opposite orientations on the opposite sides, and the two machined mounting points would be needed on the single part to accommodate the assembly of both sides.
For the 'park', in Europe most cars are manual (Due to our myth of 'manual allows for more control'), we just have an electronic parking brake like Tesla. With it off, the car rolls away. No transmission/engine 'parking'. 🙂 Its always been that way so I don't really see it being an issue. My dad's 2014 Peugeot has an electric in-caliper parking brake as well. It's very common.
Great job. My thoughts..is it possible the rear lower arm is a single forging designed to be used on both sides of the vehicle? The 2 arms zip tied together look symmetrical…if so, that would explain the pad and extra machined surface and holes that are not being used. On the accumulator, I do agree with the concept of combining it with something that is preexisting, just not sure the rear subframe is the best idea. Tank failures are obviously pretty rare, but if a tank DID fail, not only would it mean replacement of the entire rear subframe, but it could possibly represent a structural integrity issue on such a highly loaded component.
@@brianb-p6586 I just wondered if perhaps that was the reason they have 2. maybe they desired functionality on the compressor outlet/computer that was readily available off-the-shelf.
I disagree about integrating the tank into the cradle. If the tank ever has a leak or stripped fittings, gets a dented crack, etc. and needs to be replaced for some reason-- now you would have to replace the entire cradle; not good. What Tesla did makes a lot more sense because it's still a smaller part, and yet it's serving multiple functions, and still easily replaceable. It's not good to integrate things that may need to be renewed later-- and all pressure vessels have a shelf life. I do like the idea of integrating things and getting more than one use of whatever you can; and also with Tesla leading the way with the large body castings-- great stuff. But you have to draw a line between the bulk structure items and consumable accessories. For example, you wouldn't want to integrate the alternator and starter into the block of an engine -- I'm sure you could do it, but it's just not a great idea. Some things are best left isolated and easily removable/ replaceable.
So to see Jordan do a standing back flip, I'll re-watch this video a few times!
the thing is what do you follow it up with...
#thebackflip
Jordan and Scott - your engineering analyses are spectacular. Thank you.
man you guys make your jobs look fun! and a standing backflip in dress clothes is always impressive, look forward to seeing it one day!
Winning duo for presentations for sure. And yes, backflip please.
Jordan is so great running videos, really enjoy him explaining analysis!
And a great smile
I didn't like Jordan when he started with the fridge, but he has grown a ton, and the dynamic with Scott is excellent. I really enjoy their videos, great job!
That accessory air compressor looks exactly like the ARB compressor I bought specifically for pumping up tires on my 4x4 after they've been aired down for sand driving. ARB is Australian, like the part you showed.
Identical extrusion (they normally blue anodise?)
Same casting pattern with the "flares" on the fins.
Same endcap for the electrics.
Definitely ABR
Yeah, nothing bespoke about that. Basic ARB compressor with custom branding. Definitely weird that they have two compressors though.
Those front struts are a joint effort: the upper air spring part is from "United Kingdom" (1:46) and the damper section (Monroe-branded) from Poland.
And about the 11th-hour aux air compressor: neither it nor the main suspension one are actively cooled, so if there were only one compressor, that leaves the possibility of the main one getting cooked from, say, pumping up a huge innertube at the lake, that would leave the truck dead in the water so to speak. So having the aux one is insurance against the bad "optics" of a Rivian on a tow truck...
Love the ending! Glad I watched til the end. It’s cool to see a team of engineers be able to joke around.
You two are great together as presenters! I enjoy watching and learning from your detailed analysis. Great job guys! Would like to also see Jordan do a standing backflip🙂
I think we need to push this vid to everyone. I would surely enjoy to watch that back flip.These tear downs and detailed videos are great. Keep up the fantastic work.
Nerdgasm worthy deliveries, both! Excellent, elegant, enthusiastic, concise and succinct oration. The epitome of engineering ‘show & tell.’
Wonderful channel, and I’m certainly no mechanical engineer. Munro is so smart to employ such hugely well-educated and articulate young people. One does wonder how the USA can produce people of this high calibre at the same time as the USA has such enormous societal problems. So it is encouraging to see, from outside, that parts of the Nation work so extremely well. Good luck to the USA!
They hire well-educated and articulate old people too!
Knowledgeable Boss (management) hires top line experts......
Reminds me of another company🤔.
These two are the "A" team for presenting. Great chemistry, they compliment each other and it is apparent you get along.
One other thing, Rivian is definitely over engineered. anyone who got the first generation has a vehicle probably worth twice if not 3 times what you paid for.
I agree over-engineered is the right word, they don't get the value of 3 times what they paid for but Rivian spent more than they paid for for sure.
Excellent, I learn something new every time I watch Munro. 👍👍🇺🇸
Thanks 👍
Wow, great chemistry. These guys get along!
Scott was great. Very clear and engaging.
Really appreciate the added insight on how you would improve things. You two make a great team; presenting together makes both of you look even more insightful.
Great team, period! :) Thanks guys / all.
You bet!
The small compressor is an arb. Its for air locking diffs. Been in production for many years. Very reliable.
ARB compressors are not just for air supply to locking differentials, even if many of them are installed for that purpose.
08:10 - I tend to agree with Rivian as the Compressor is essential to the driving, better have a secondary unit for leisure. Great content. Thanks
Thanks for review and intro to these devices, Interesting equipment, unusual stuff to see for most.
Thanks for watching!
The rear lower control arms have machining on both sides to alow them to be used on either side of the vehicle instead of left and right variants.
I think 🤔.....
It looks like that is likely.
Yep, they appear largely symmetrical other than the pivot nut.
Does the bolt have a shoulder so the two holes sizes are the same?
Fully symmetrical? Or a common casting to be machined?
The rear LCAs are machined on both sides because they are the same part, just flipped for the other side, so it makes sense to be machined on two sides
Credit to Sandy for such a good team, these two are great presenters, know their stuff. Decent values and knowledge.
I'm not a mechanic, do fiddle with my truck sometimes but mostly craft/maker stuff and always enjoy learning about systems and production components and processes.
Very informative. Thank you! As I am purchasing a Rivian the more technical information is out there the better the community will be. All power to Jordan and Scott.
The best part of the video was seeing parts made in UK/Poland/OZ. NOT China. Breath of fresh air.
Great video. Educational as always.
Glad you enjoyed it!
Welcome Scott. You look like you will do very well. Just remember that we like our acronyms broken down for ease of digestion. ;>
The rear lower suspension arms look like they are the same part, left and right...this explains the unused threads on opposite sides
Great video as the two of you compliment each other in making complex topics easier to understand & appreciate…
Jordan-“Get big air.”
Thank you
THANKS JORDAN AND ( Glad to see you’re back )
SCOTT … and the rest of the MUNRO team …. Doing what you do best.👍😎😁💚💚💚
Thanks Jordan and Scott for your interesting and detailed insights into the Rivian suspension.
Thanks for watching, Norman
Excellent analysis. Thank you.
Good analysis! Thanks! And yes, let’s see that back-flip, Jordan!
Great job, guys. I want to see a back flip!!!
My thoughts are that the reason they have two compressors is that the one used for the air suspension might not be rated for high duty cycle. And that if somebody was using the air compressor for extended periods or just using the air facility a lot. The service life of that compressor could be exceeded in a short amount of time. The cheaper compressor may actually be lower volume and rated for higher duty cycle.
I cannot believe the size of that calliper. Almost the size of the lower control arm. Crazy strong brakes.
When speaking on the f150 rear leaf spring suspension, should clarify that the ev lightning does not use leaf springs
True, and same for Chevrolet: the Silverado has rear leaf springs and a beam axle, but the Silverado EV has independent rear suspension.
And then the question is which one feels better on bumps and potholes in real life.
Well that was fun - on both sides of the camera, it seems!
Great review and analysis guys! Good team. Backflip Jordan!
Great job gentleman. That was like watching Wayne Gretzky and Mario Lemieux play hockey for team Canada. Cheers from Ottawa Canada.
Regarding the redundant machining on the Lower Control Arms: Are they maybe Mirrored (or are otherwise mostly the same)? so they have the same Part for both Left and Right, and the side where it goes is decided in a diffrent step where this blue Nut is added?
Still Savings potential there, but this would allow for some more flexibility
22:50
By moving the air reservoir forward Scott also saved about 5' of high pressure line.
Saving pennies!
The extra threaded holes are probably non-handed parts in a handed installation. Also interesting the origins of some of these parts. Struts from Poland, air compressors from Australia. Quite a lot of miles travelled before assembly!
Scott, maybe you can talk in future episodes about the exciting battery research and development that I hear takes place around Golden, CO
Thanks, Winchester boys!
Jordan and Scott videos are great 👍
You’re a good match guy. Very captivating. 👍
You guys vibe so well together and you're so articulate. I bet you would do well if you guys got together and did a podcast; where you could talk about everything and not just cars. I'd certainly watch it.
"Let's get Jordan to do a back flip in dress shoes." SAFETY THIRD!!! 😆
Gotta get these likes up!! Standing backflip in dress shoes!!
You both make a great team
Thanks!
I would worry about the security the electric parking brake can provide in the Rivian compared to a mechanical one on other vehicles in offroad environments. It is common knowledge you park with your rig locked into 4WD when parking on steep offroad areas. This allows all four wheels to participate via the drivetrain in keeping the vehicle from moving. Seems the Rivian would only use the back wheels, given the greater weight of the Rivian, it might slide down a hill dragging the back wheels the whole way. I've seen it happen to Jeeps that were parked in 2H, it can and will happen with the Rivian. Would be nice if that motorized park brake was on all four wheels. Maybe this is a change that can be put into a future model of theirs.
Top notch duo and subject. Keep punching guys! Thanks you.
Great Video !!!
Thanks!
Thank you!
You're welcome!
Air compressor looks conspicuously similar to an ARB compressor (not so coincidentally also from Australia).
Thumbs up guys. Great work.
I really enjoyed watching you guys on this one. Very fun and interesting.
Well done - Thanks
Our pleasure!
Our Czech Tatra trucks have had the pneumatic suspension since I was a boy - at least 50 years. Also their rear wheels were always on half-axle driven from the central column, so they were roding on their outer wheel rims when unloaded. But sometimes since 1980+ uears they added that pneumatic suspension to those rear wheels so when the truck was empty, the air pressure cushion got lowered and this this old funny setup was fixed and imho is better system than other trucks in general.
I love to see the analysis of what is but also the considered thoughts about what could be. Integrating components saves weight, adds strength, simplifies assembly, and reduces production costs.
In some cases it also increases repair cost, but Munro is never concerned with that - their purpose is to reduce manufacturing cost, regardless of the consequences for the vehicle owner.
That Australian air compressor (to pump the tires) is made by ARB! Cool!
Use the same compressor for suspension and for air inflation? Yes - VW in 2004+ with the Touareg.
However, if you want to use the compressor a lot, having a separate air compressor that is not critical to vehicle functionality is a nice idea.
Lol the moment I saw that accumulator, I knew what you all were going to say. I think I’m starting to learn something from this channel!
We like Scott!
Well done
Are the lower control arms and struts the same part numbers? Is it possible those additional machined perches are there so the part can be used on either side?
17:50 Consider the two motor variant and the R1S.
The suspension could be designed to carry the components for the two motor variant of the R1. There might also be a different component configuration for the R1S using shared parts.
air tanks have moisture and corrode over time I would want that to be a replaceable part and not part of the main structure. some times i really think there ideas are making something faster and cheaper to built but its also a cheaper product with possible long term problems.
"over time"… how long are we talking about? 5 years? 10 years? 20 years?
Would it depend on the climate too? Less moisture in the air in Colorado vs. Florida
@@privettoli yes climate changes that. Not sure I know my compressor in the garage I have to drain all the time.
Great video, I like to give a suggestion as well, it would be nice while you are speaking about the different parts also share where they are made and who have made them, (as some of them can be discovered from the stickers on them even in this video).
Yes, like where were the castings made, were they done here in US?
informative, inspiring and fun
Glad you think so!
Is the rear control arm the same part for right and left? Could be the reason for the unused holes.
BACK FLIP! BACK FLIP! BACK FLIP!
Great work , Both these guys work well together , and no doubt both could work well with anyone on the Munro family.
Would love to more videos with Sue and Sandy. Seems like Sandy doesn’t mind passing the ball to some of the younger talent ,
I am sure in Sandy’s mind that if in the near or far future if his health falters he wants to have several talented young people keep the company moved forward. Please do give us a backflip maybe an unexpected one in front of Sandy and Sue to get the looks on their faces. Cheers to all at Munro.
I believe it was about 30 or 40 years ago that GM/Chevrolet gasoline powered medium duty trucks went to the AutoPark Brake System powered by an electric motor to replace the parking pawl in the transmission. You saw these in the P-Series Van Chassis used by delivery companies (UPS, FedX, Bakeries, Fritos, SnapOnTools, etc, etc), Ambulances and Motor Homes. Transmissions without a parking pawl are not a new thing that just recently came about due to electrification and have been widely used in many vehicles providing for our daily needs and emergency services using automatically activated electric parking brakes with no parking pawl in the transmission on the road in the US for almost four decades now.
I didn't know that medium-duty trucks had already gone this way - thanks!
After quick web search it appears that this system was used when GM 4L80E were used on trucks too heavy for that transmission's parking pawl, and with transmissions that didn't have parking pawls (e.g. Allison 2100).
At least some (probably all) of these systems use a dedicated drum brake on the transmission output shaft, not parking brakes at the wheels.
@@brianb-p6586 That single brake drum on the drive shaft was a problem unless the rear differential was a fully locked differential since with a regular unlocked differential all you needed was for one rear wheel to loose traction and then you'd have no more parking brake. The automatic system that securely sets both rear brakes is a huge improvement over the early systems or even the parking pawl. No danger of dropping the drive shaft trying to engage the new system when the vehicle is moving.
@@neilfromclearwaterfl81 I appreciate the advantage of parking brakes on individual wheels, but my motorhome (on a 2008 Ford F53 chassis) has just a drum brake on the driveshaft as a parking brake (operated by a typical foot pedal), in combination with a transmission parking pawl (in the 4R100 automatic transmission). This is not uncommon, or unique to automatic transmission vehicles without a parking pawl. In the case of the F53, the driveshaft-mounted drum is used because the fixed-caliper disk brakes on the rear axle do not include a parking function, and Ford (or Dana) chose not to add separate parking calipers. It works for us, so far.
The driveshaft-mounted parking brake should not be capable of exerting enough torque to damage the driveshaft.
@@brianb-p6586 Automatically or rather Manually Activated and Electrically Applied in an emergency situation such as with loss of hydraulic brakes at speed the old autopark system (which the older F53 did not have) has been noted as too aggressive since it cannot really be modulated like a foot or hand operated brake so its either full on or completely off. It can lead to loss of directional stability and can result in dropping the driveshaft especially on a high mileage vehicle or an older unit run in the Salt Belt. I have maintained and owned both P-30 and F-53 along with GM and Ford Super Duty trucks. Had one driver go over the guardrail when the driveshaft tube failed and dug into the pavement flipping the truck over and down into a swamp however thankfully he just got a few scrapes and bruises. That failure was on a truck that was less than a year old. On the disc brakes not having a park brake function, thats at the discretion of the chassis builder since you can stack a drum with the disc or have a secondary caliper such as the 120 series Wildwood mechanical parking brake calipers or get a caliper with a cam lever or other actuator on it (cam lever option has been available since at least the 1960's) to provide park/emergency braking.
It's easy to see why Rivian has a cost problem on these vehicles. Everything is first class.
RIVIAN almost makes NOTHING in their Vehicles, TESLA China is 95% in House.
Will need to see what happens in version 2 and beyond. They'll have to start doing cost reductions like Teslas
@@gordkao no they just needs to offer this same truck but with much less features like no air suspensions, but with adaptive suspensions…..
@@gordkao Achieving higher production volume would help too.
Do it Jordan!!
GreatTeamwork.
Golden CO is still a wonderful place to be.
I think Tesla should have updated the Citroen hydraulic suspension system. With two electric pumps there would be no need for a hydraulic accumulator. It could power suspension, brakes, steering and even give a basic active suspension.
Thank you!
I’ve owned cars without park pawls for over 40 years……with only a few edge case events😎
Those small redundant bosses on the suspension look like mounts for height sensors?
My worrirs about using only the brake:
People are cheap and skip maintenance regularly. If the pads or rotors are too worn, you want that redundancy.
Backyard mechanics will need an option when maintaining the rear brakes. The weight makes most tire chucks useless, hopefully they figure that out
the energy of these guys vs the older ones.😅 admittedly, i'm probably as old as the senior engineers.
Welcome home Scott! Now, from an old marine! Check your gig line!😂
Are the rear lower control arms identical? If so, they would be turned to opposite orientations on the opposite sides, and the two machined mounting points would be needed on the single part to accommodate the assembly of both sides.
The accessory air compressor was originally going to be an option that Rivian just decided to incorporate into every truck.
Into every high end truck because they can make similar truck but with just adaptative suspensions no need of air or hydraulics which are expensive
For the 'park', in Europe most cars are manual (Due to our myth of 'manual allows for more control'), we just have an electronic parking brake like Tesla. With it off, the car rolls away. No transmission/engine 'parking'. 🙂
Its always been that way so I don't really see it being an issue. My dad's 2014 Peugeot has an electric in-caliper parking brake as well. It's very common.
Up to 30(?) years ago manual DID "provide more control!
Now.... ? Debatable (although every auto I've ever driven hads "moments".
EVs aren't either.
Assembled in Australia.....by ARB?
Great job. My thoughts..is it possible the rear lower arm is a single forging designed to be used on both sides of the vehicle? The 2 arms zip tied together look symmetrical…if so, that would explain the pad and extra machined surface and holes that are not being used. On the accumulator, I do agree with the concept of combining it with something that is preexisting, just not sure the rear subframe is the best idea. Tank failures are obviously pretty rare, but if a tank DID fail, not only would it mean replacement of the entire rear subframe, but it could possibly represent a structural integrity issue on such a highly loaded component.
Can you please do some on road testing with towing with the rivian, f150, and CT when available? Range, power, braking, load etc?
2:30 - Made in Poland. Excellent. FYI, there is also a channel on YT named Made in Poland.
What’s the voltage of the 2 compressors? I bet the auxiliary is 12v?
Sure, but the suspension air compressor will likely be 12V as well.
@@brianb-p6586 I just wondered if perhaps that was the reason they have 2. maybe they desired functionality on the compressor outlet/computer that was readily available off-the-shelf.
Hay, that aux compressor is assembled in Oz!!! :-)
@3:44 that's an air spring (which you can call an air bag); it is not a strut of any kind.
25:12 Who else wants to see Jordan do a standing backflip?!?! 👍🦵
We need Munro back to talk about the Rivian more, he did for Tesla.
I disagree about integrating the tank into the cradle. If the tank ever has a leak or stripped fittings, gets a dented crack, etc. and needs to be replaced for some reason-- now you would have to replace the entire cradle; not good. What Tesla did makes a lot more sense because it's still a smaller part, and yet it's serving multiple functions, and still easily replaceable. It's not good to integrate things that may need to be renewed later-- and all pressure vessels have a shelf life. I do like the idea of integrating things and getting more than one use of whatever you can; and also with Tesla leading the way with the large body castings-- great stuff. But you have to draw a line between the bulk structure items and consumable accessories. For example, you wouldn't want to integrate the alternator and starter into the block of an engine -- I'm sure you could do it, but it's just not a great idea. Some things are best left isolated and easily removable/ replaceable.
Careful Jordan. I did that in gym 58 years ago and broke my ankle!