Automotive systems have built in redundancy. The BBW and SBW systems have hydraulic and mechanical backups in case of failure. (I'm a brake controls engineer). True...
Automotive systems have built in redundancy. The BBW and SBW systems have hydraulic and mechanical backups in case of failure. (I'm a brake controls engineer). True brake by wire, electro-mechanical (EPB's), would still have a secondary redundant power source, possibly even a third, to prevent any 'no brake' scenarios.
Wireless braking is sketchy and I'd personally never use it. Always have redundancy.
Electric power steering motors for example have dual windings so even if one of the two fails, the other can still power the steering. The car of course throws a catastrophic error, probably even goes into limp mode and forces the driver to stop ASAP to prevent any further issues.
The amount of bureaucratic systems in place to develop these kinds of things in automotive fields would probably be quite surprising to many people, on the other hand there are a ton of products in the bike industry where it's really questionable if even the basic FMEA was made at all...
Liability of wireless brakes is terrifying… I don’t think any cars are doing fully electric brakes yet?
cool if someone can make it happen though
oohh boys, wireless brakes are not coming to normal bikes due to weight penalty.
The best use case for wireless brakes is the F1 style of brake. You have an engine, motor, some shit that takes power away/recharge batteries when braking. Use that energy before the calipers with abs (on an e-bike you can have it sliding just a bit, never fully locked for example). Lever feel would be something like incresing spring force untill you actuate the brake itself. To be fair, there is a mechanical way of doing that, not even wireless.
For the front of the bike, the maximum will be abs. The weight will never be low enough to justify. Also safety since there is no way of braking if there is any problem.
Looks to be updated shigura’s. Definitely interesting
From the article:
What's the deal with the brake?
The brakes come from the Alb ra ( Swabian Alb, editor's note 
. You may know - the three worst diseases of humanity: cholera, leprosy and from the Alb ra ( Swabian joke, editor's note 
. They come from Steffen Braungardt and he also makes the majority of the milled parts. That's why I have his prototype brake levers here now.
Are they fully adjustable?
Exactly! On the one hand, you can adjust the lever ratio, but also the free travel regardless of the grip width. The brake levers are available to fit Magura MT5 or MT7 or for Shimano brake calipers. They will be coming onto the market soon.
oohh boys, wireless brakes are not coming to normal bikes due to weight penalty.
The best use case for wireless brakes is the F1 style of...
oohh boys, wireless brakes are not coming to normal bikes due to weight penalty.
The best use case for wireless brakes is the F1 style of brake. You have an engine, motor, some shit that takes power away/recharge batteries when braking. Use that energy before the calipers with abs (on an e-bike you can have it sliding just a bit, never fully locked for example). Lever feel would be something like incresing spring force untill you actuate the brake itself. To be fair, there is a mechanical way of doing that, not even wireless.
For the front of the bike, the maximum will be abs. The weight will never be low enough to justify. Also safety since there is no way of braking if there is any problem.
There's no way of braking with hydraulic brakes if they have a problem. It's easier to build a fail safe into a brake like that than it is with a hydraulic system, surely? e.g. if the caliper losses connection to the lever it could be set up automatically apply X amount of force to bring you to a controlled stop.
From personal experience if you encounter a problem with your lever, hose, or caliper on a hydraulic brake, there's nothing you're doing about it. There's no redundancy or safety built into the system at any point in terms of failures.
Been out of the forum for awhile so not sure if it’s been posted but just spotted this on a video go pro posted on IG...
Been out of the forum for awhile so not sure if it’s been posted but just spotted this on a video go pro posted on IG of Jackson… getting away from vpp? Certainly not a “traditional” Santa Cruz
Sorry if it’s already been posted*
Don't think it has been posted yet. I notice the same in one of latest Metailler video. Looks like a trek.. might borrow a bike. But it seems weird from him to get shown on popular video without SC bike. It looks like a final version of a carbon bike too by the look and risk taken in these drops. Maybe SC thinking of doing a more traditional suspension layout and get rid of that counter rotating upper link which would be odd.
Been out of the forum for awhile so not sure if it’s been posted but just spotted this on a video go pro posted on IG...
Been out of the forum for awhile so not sure if it’s been posted but just spotted this on a video go pro posted on IG of Jackson… getting away from vpp? Certainly not a “traditional” Santa Cruz
Don't think it has been posted yet. I notice the same in one of latest Metailler video. Looks like a trek.. might borrow a bike. But...
Don't think it has been posted yet. I notice the same in one of latest Metailler video. Looks like a trek.. might borrow a bike. But it seems weird from him to get shown on popular video without SC bike. It looks like a final version of a carbon bike too by the look and risk taken in these drops. Maybe SC thinking of doing a more traditional suspension layout and get rid of that counter rotating upper link which would be odd.
I think I saw a video of him on his Trek Slash from not too long ago. Might be prior gen Slash that he still has from the Trek days. As to why he would be riding that over a SC bike, no idea.
Been out of the forum for awhile so not sure if it’s been posted but just spotted this on a video go pro posted on IG...
Been out of the forum for awhile so not sure if it’s been posted but just spotted this on a video go pro posted on IG of Jackson… getting away from vpp? Certainly not a “traditional” Santa Cruz
Don't think it has been posted yet. I notice the same in one of latest Metailler video. Looks like a trek.. might borrow a bike. But...
Don't think it has been posted yet. I notice the same in one of latest Metailler video. Looks like a trek.. might borrow a bike. But it seems weird from him to get shown on popular video without SC bike. It looks like a final version of a carbon bike too by the look and risk taken in these drops. Maybe SC thinking of doing a more traditional suspension layout and get rid of that counter rotating upper link which would be odd.
It's an old Remy M. video that GoPro randomly posted - it's pre-SC/Redbull Jackson still on a Trek Slash. moving on!
The Alfa Guila is fully brake by wire. The Infinity Q50 is steer by wire.
The Infinity is required to have a physical backup, but I...
The Alfa Guila is fully brake by wire. The Infinity Q50 is steer by wire.
The Infinity is required to have a physical backup, but I haven't heard if there is a backup system for the brakes in the Alfa. Most reviewers complained about the lack of modulation at low speeds making it hard to smoothly stop the Alpha.
Almost all modern cars with some kind of driver's assistance including emergency braking have electronic control of the brakes. Most are a tradition braking system with additional computer input not pure brake by wire though.
F1 has been brake by wire for a long time now, so the technology is relatively well developed.
Quite a few cars are drive by wire, i believe the new Porsche 911 (991 version) has electronic steering.
The real question is, why do electronic breaking on a bike, it can provide ABS, packaging? Tuneability?
The Alfa Guila is fully brake by wire. The Infinity Q50 is steer by wire.
The Infinity is required to have a physical backup, but I...
The Alfa Guila is fully brake by wire. The Infinity Q50 is steer by wire.
The Infinity is required to have a physical backup, but I haven't heard if there is a backup system for the brakes in the Alfa. Most reviewers complained about the lack of modulation at low speeds making it hard to smoothly stop the Alpha.
Almost all modern cars with some kind of driver's assistance including emergency braking have electronic control of the brakes. Most are a tradition braking system with additional computer input not pure brake by wire though.
The Alfa Guila is fully brake by wire. The Infinity Q50 is steer by wire.
The Infinity is required to have a physical backup, but I...
The Alfa Guila is fully brake by wire. The Infinity Q50 is steer by wire.
The Infinity is required to have a physical backup, but I haven't heard if there is a backup system for the brakes in the Alfa. Most reviewers complained about the lack of modulation at low speeds making it hard to smoothly stop the Alpha.
Almost all modern cars with some kind of driver's assistance including emergency braking have electronic control of the brakes. Most are a tradition braking system with additional computer input not pure brake by wire though.
No, brake by wire on F1 is for the energy recovery system, the normal brakes still work by hydraulics, like on our bikes.
The brake system literally runs through the ECU, to modulate the hydraulic pressure to maximize KERS recovery at the rear wheels under braking, that is brake by wire. Just because a human leg is providing the force for the hydraulic system (which it always will in F1, because free energy), doesn't make it not brake by wire.
Now though, with 2014’s much more powerful Energy Recovery Systems (ERS) enabling around 160bhp to be harvested, there is a lot more reverse torque acting on the rear axle and as a result the teams are now allowed to implement electronically-controlled brake-by-wire rear brake systems so that the drivers are able to maintain a reasonable level of balance and stability under braking.
The context here is wireless braking, kind of like it is in Alfa Giula mentioned above. They have brake by wire in F1 (as i wrote) but it is not wireless and "mostly" it is still fully hydraulic, front brakes a lot more than rear.
No, they do NOT have brake by wire in F1. They have standard hydraulic brakes with no boosters even, like most racecars. The caveat here is they use a Moog valve to modulate (remove) hydraulic pressure from the rear brakes, controlled by the ECU, to feed in the energy recovery and keep the overall braking forces and thus brake balance. Just throwing in energy recovery or removing rear hydraulic brakes would throw the balance front and back wildly and unpredictably.
Coincidentally, there have been failures on these systems, causing drivers to spin off the track (balance issues) and the first systems were notoriously finicky and not calibrated 100 %, causing some drivers issues with brake feel (some drivers are really in tune with what the car is working, so much so that changing the concept of the steering system can make or break a driver's performance).
As for Porsche being drive by wire on the steering, no, 991 introduced EPAS, electric power assisted steering, while 997 still kept hydraulic power assist. EPAS is getting more and more common as it doesn't have a hydraulic pump running all the time thus saving energy. The problem is with feel (Chris Harris drove the Singer Porsche just after 991s came out and said (paraphrasing) 'if you don't like EPAS, don't drive the Singer as the level of feel on the hydraulic Singer will make you hate EPAS even more'. And Porsche is touted to be by far the best in the EPAS game. But EPAS itself is nothing new, cars have been using it since the early 2000s at least (2nd gen Fiat Punto for sure), if not even longer.
Steer by wire means you have only a sensor on the steering wheel controlling an electric motor driving the steering rack, no mechanical connection between the wheel and the rack. With hydraulic or electric power assist you still have the steering shaft connecting the two. Same for braking, there's an actuator building the hydraulic pressure to clamp the brake discs in the calipers. Throttle by wire has been a constant for well over 20 years, replacing the cable actuated throttle valves with an actuator driven throttle valve and a potentiometer on the throttle pedal telling the ECU how much power is requested.
Fun fact, Ford GT still has a hydraulic steering rack as they use the hydraulic pump for the adjustable suspension system with adaptable ride height as well, thus making it worthwhile even though it consumes more fuel.
No, they do NOT have brake by wire in F1. They have standard hydraulic brakes with no boosters even, like most racecars. The caveat here is...
No, they do NOT have brake by wire in F1. They have standard hydraulic brakes with no boosters even, like most racecars. The caveat here is they use a Moog valve to modulate (remove) hydraulic pressure from the rear brakes, controlled by the ECU, to feed in the energy recovery and keep the overall braking forces and thus brake balance. Just throwing in energy recovery or removing rear hydraulic brakes would throw the balance front and back wildly and unpredictably.
Coincidentally, there have been failures on these systems, causing drivers to spin off the track (balance issues) and the first systems were notoriously finicky and not calibrated 100 %, causing some drivers issues with brake feel (some drivers are really in tune with what the car is working, so much so that changing the concept of the steering system can make or break a driver's performance).
As for Porsche being drive by wire on the steering, no, 991 introduced EPAS, electric power assisted steering, while 997 still kept hydraulic power assist. EPAS is getting more and more common as it doesn't have a hydraulic pump running all the time thus saving energy. The problem is with feel (Chris Harris drove the Singer Porsche just after 991s came out and said (paraphrasing) 'if you don't like EPAS, don't drive the Singer as the level of feel on the hydraulic Singer will make you hate EPAS even more'. And Porsche is touted to be by far the best in the EPAS game. But EPAS itself is nothing new, cars have been using it since the early 2000s at least (2nd gen Fiat Punto for sure), if not even longer.
Steer by wire means you have only a sensor on the steering wheel controlling an electric motor driving the steering rack, no mechanical connection between the wheel and the rack. With hydraulic or electric power assist you still have the steering shaft connecting the two. Same for braking, there's an actuator building the hydraulic pressure to clamp the brake discs in the calipers. Throttle by wire has been a constant for well over 20 years, replacing the cable actuated throttle valves with an actuator driven throttle valve and a potentiometer on the throttle pedal telling the ECU how much power is requested.
Fun fact, Ford GT still has a hydraulic steering rack as they use the hydraulic pump for the adjustable suspension system with adaptable ride height as well, thus making it worthwhile even though it consumes more fuel.
Now, back to rumors.
EPAS is slightly more efficient than hydraulic steering, removes the need for power steering fluid (which is flammable) and is necessary for most lane keep assist systems.
The Manitou Mezzer is still on sale at 40% off. Still no news or rumors about a gen2 or a dc-version?
I’ve been wondering about that myself. I honestly don’t know what the market would be for a DC Mezzer, but they already have stanchions and dampers. Machining lightweight crowns for a DC Mezzer seems like a fairly low cost experiment.
No, they do NOT have brake by wire in F1. They have standard hydraulic brakes with no boosters even, like most racecars. The caveat here is...
No, they do NOT have brake by wire in F1. They have standard hydraulic brakes with no boosters even, like most racecars. The caveat here is they use a Moog valve to modulate (remove) hydraulic pressure from the rear brakes, controlled by the ECU, to feed in the energy recovery and keep the overall braking forces and thus brake balance. Just throwing in energy recovery or removing rear hydraulic brakes would throw the balance front and back wildly and unpredictably.
Coincidentally, there have been failures on these systems, causing drivers to spin off the track (balance issues) and the first systems were notoriously finicky and not calibrated 100 %, causing some drivers issues with brake feel (some drivers are really in tune with what the car is working, so much so that changing the concept of the steering system can make or break a driver's performance).
As for Porsche being drive by wire on the steering, no, 991 introduced EPAS, electric power assisted steering, while 997 still kept hydraulic power assist. EPAS is getting more and more common as it doesn't have a hydraulic pump running all the time thus saving energy. The problem is with feel (Chris Harris drove the Singer Porsche just after 991s came out and said (paraphrasing) 'if you don't like EPAS, don't drive the Singer as the level of feel on the hydraulic Singer will make you hate EPAS even more'. And Porsche is touted to be by far the best in the EPAS game. But EPAS itself is nothing new, cars have been using it since the early 2000s at least (2nd gen Fiat Punto for sure), if not even longer.
Steer by wire means you have only a sensor on the steering wheel controlling an electric motor driving the steering rack, no mechanical connection between the wheel and the rack. With hydraulic or electric power assist you still have the steering shaft connecting the two. Same for braking, there's an actuator building the hydraulic pressure to clamp the brake discs in the calipers. Throttle by wire has been a constant for well over 20 years, replacing the cable actuated throttle valves with an actuator driven throttle valve and a potentiometer on the throttle pedal telling the ECU how much power is requested.
Fun fact, Ford GT still has a hydraulic steering rack as they use the hydraulic pump for the adjustable suspension system with adaptable ride height as well, thus making it worthwhile even though it consumes more fuel.
Now, back to rumors.
GM is right up there with electric steering. At this point hydraulic does have more feel, but EPAS in Porsche and GM communicate well enough. Throttle House picked the Camaro's steering as their preference in an ideal sports car, fwiw.
No, they do NOT have brake by wire in F1. They have standard hydraulic brakes with no boosters even, like most racecars. The caveat here is...
No, they do NOT have brake by wire in F1. They have standard hydraulic brakes with no boosters even, like most racecars. The caveat here is they use a Moog valve to modulate (remove) hydraulic pressure from the rear brakes, controlled by the ECU, to feed in the energy recovery and keep the overall braking forces and thus brake balance. Just throwing in energy recovery or removing rear hydraulic brakes would throw the balance front and back wildly and unpredictably.
Coincidentally, there have been failures on these systems, causing drivers to spin off the track (balance issues) and the first systems were notoriously finicky and not calibrated 100 %, causing some drivers issues with brake feel (some drivers are really in tune with what the car is working, so much so that changing the concept of the steering system can make or break a driver's performance).
As for Porsche being drive by wire on the steering, no, 991 introduced EPAS, electric power assisted steering, while 997 still kept hydraulic power assist. EPAS is getting more and more common as it doesn't have a hydraulic pump running all the time thus saving energy. The problem is with feel (Chris Harris drove the Singer Porsche just after 991s came out and said (paraphrasing) 'if you don't like EPAS, don't drive the Singer as the level of feel on the hydraulic Singer will make you hate EPAS even more'. And Porsche is touted to be by far the best in the EPAS game. But EPAS itself is nothing new, cars have been using it since the early 2000s at least (2nd gen Fiat Punto for sure), if not even longer.
Steer by wire means you have only a sensor on the steering wheel controlling an electric motor driving the steering rack, no mechanical connection between the wheel and the rack. With hydraulic or electric power assist you still have the steering shaft connecting the two. Same for braking, there's an actuator building the hydraulic pressure to clamp the brake discs in the calipers. Throttle by wire has been a constant for well over 20 years, replacing the cable actuated throttle valves with an actuator driven throttle valve and a potentiometer on the throttle pedal telling the ECU how much power is requested.
Fun fact, Ford GT still has a hydraulic steering rack as they use the hydraulic pump for the adjustable suspension system with adaptable ride height as well, thus making it worthwhile even though it consumes more fuel.
GM is right up there with electric steering. At this point hydraulic does have more feel, but EPAS in Porsche and GM communicate well enough. Throttle...
GM is right up there with electric steering. At this point hydraulic does have more feel, but EPAS in Porsche and GM communicate well enough. Throttle House picked the Camaro's steering as their preference in an ideal sports car, fwiw.
That is simply electric booster power steering. There is still a mechanical connection from steering rack to the steering wheel.
No, they do NOT have brake by wire in F1. They have standard hydraulic brakes with no boosters even, like most racecars. The caveat here is...
No, they do NOT have brake by wire in F1. They have standard hydraulic brakes with no boosters even, like most racecars. The caveat here is they use a Moog valve to modulate (remove) hydraulic pressure from the rear brakes, controlled by the ECU, to feed in the energy recovery and keep the overall braking forces and thus brake balance. Just throwing in energy recovery or removing rear hydraulic brakes would throw the balance front and back wildly and unpredictably.
Coincidentally, there have been failures on these systems, causing drivers to spin off the track (balance issues) and the first systems were notoriously finicky and not calibrated 100 %, causing some drivers issues with brake feel (some drivers are really in tune with what the car is working, so much so that changing the concept of the steering system can make or break a driver's performance).
As for Porsche being drive by wire on the steering, no, 991 introduced EPAS, electric power assisted steering, while 997 still kept hydraulic power assist. EPAS is getting more and more common as it doesn't have a hydraulic pump running all the time thus saving energy. The problem is with feel (Chris Harris drove the Singer Porsche just after 991s came out and said (paraphrasing) 'if you don't like EPAS, don't drive the Singer as the level of feel on the hydraulic Singer will make you hate EPAS even more'. And Porsche is touted to be by far the best in the EPAS game. But EPAS itself is nothing new, cars have been using it since the early 2000s at least (2nd gen Fiat Punto for sure), if not even longer.
Steer by wire means you have only a sensor on the steering wheel controlling an electric motor driving the steering rack, no mechanical connection between the wheel and the rack. With hydraulic or electric power assist you still have the steering shaft connecting the two. Same for braking, there's an actuator building the hydraulic pressure to clamp the brake discs in the calipers. Throttle by wire has been a constant for well over 20 years, replacing the cable actuated throttle valves with an actuator driven throttle valve and a potentiometer on the throttle pedal telling the ECU how much power is requested.
Fun fact, Ford GT still has a hydraulic steering rack as they use the hydraulic pump for the adjustable suspension system with adaptable ride height as well, thus making it worthwhile even though it consumes more fuel.
GM is right up there with electric steering. At this point hydraulic does have more feel, but EPAS in Porsche and GM communicate well enough. Throttle...
GM is right up there with electric steering. At this point hydraulic does have more feel, but EPAS in Porsche and GM communicate well enough. Throttle House picked the Camaro's steering as their preference in an ideal sports car, fwiw.
That is simply electric booster power steering. There is still a mechanical connection from steering rack to the steering wheel.
cybertruck has a wire. ...
That is simply electric booster power steering. There is still a mechanical connection from steering rack to the steering wheel.
cybertruck has a wire.
no one is doing wireless.
Yup, that is correct. Electric assist instead of hydraulic.
No, they do NOT have brake by wire in F1. They have standard hydraulic brakes with no boosters even, like most racecars. The caveat here is...
No, they do NOT have brake by wire in F1. They have standard hydraulic brakes with no boosters even, like most racecars. The caveat here is they use a Moog valve to modulate (remove) hydraulic pressure from the rear brakes, controlled by the ECU, to feed in the energy recovery and keep the overall braking forces and thus brake balance. Just throwing in energy recovery or removing rear hydraulic brakes would throw the balance front and back wildly and unpredictably.
Coincidentally, there have been failures on these systems, causing drivers to spin off the track (balance issues) and the first systems were notoriously finicky and not calibrated 100 %, causing some drivers issues with brake feel (some drivers are really in tune with what the car is working, so much so that changing the concept of the steering system can make or break a driver's performance).
As for Porsche being drive by wire on the steering, no, 991 introduced EPAS, electric power assisted steering, while 997 still kept hydraulic power assist. EPAS is getting more and more common as it doesn't have a hydraulic pump running all the time thus saving energy. The problem is with feel (Chris Harris drove the Singer Porsche just after 991s came out and said (paraphrasing) 'if you don't like EPAS, don't drive the Singer as the level of feel on the hydraulic Singer will make you hate EPAS even more'. And Porsche is touted to be by far the best in the EPAS game. But EPAS itself is nothing new, cars have been using it since the early 2000s at least (2nd gen Fiat Punto for sure), if not even longer.
Steer by wire means you have only a sensor on the steering wheel controlling an electric motor driving the steering rack, no mechanical connection between the wheel and the rack. With hydraulic or electric power assist you still have the steering shaft connecting the two. Same for braking, there's an actuator building the hydraulic pressure to clamp the brake discs in the calipers. Throttle by wire has been a constant for well over 20 years, replacing the cable actuated throttle valves with an actuator driven throttle valve and a potentiometer on the throttle pedal telling the ECU how much power is requested.
Fun fact, Ford GT still has a hydraulic steering rack as they use the hydraulic pump for the adjustable suspension system with adaptable ride height as well, thus making it worthwhile even though it consumes more fuel.
GM is right up there with electric steering. At this point hydraulic does have more feel, but EPAS in Porsche and GM communicate well enough. Throttle...
GM is right up there with electric steering. At this point hydraulic does have more feel, but EPAS in Porsche and GM communicate well enough. Throttle House picked the Camaro's steering as their preference in an ideal sports car, fwiw.
That is simply electric booster power steering. There is still a mechanical connection from steering rack to the steering wheel.
cybertruck has a wire. ...
That is simply electric booster power steering. There is still a mechanical connection from steering rack to the steering wheel.
cybertruck has a wire.
no one is doing wireless.
Which was exactly my point, yes. Besides f1 not being brake by wire as well.
No, I just compared electro signals in one metal thread to another metal thread.
Electric power steering motors for example have dual windings so even if one of the two fails, the other can still power the steering. The car of course throws a catastrophic error, probably even goes into limp mode and forces the driver to stop ASAP to prevent any further issues.
The amount of bureaucratic systems in place to develop these kinds of things in automotive fields would probably be quite surprising to many people, on the other hand there are a ton of products in the bike industry where it's really questionable if even the basic FMEA was made at all...
https://fotos.mtb-news.de/p/2768401
oohh boys, wireless brakes are not coming to normal bikes due to weight penalty.
The best use case for wireless brakes is the F1 style of brake. You have an engine, motor, some shit that takes power away/recharge batteries when braking. Use that energy before the calipers with abs (on an e-bike you can have it sliding just a bit, never fully locked for example). Lever feel would be something like incresing spring force untill you actuate the brake itself. To be fair, there is a mechanical way of doing that, not even wireless.
For the front of the bike, the maximum will be abs. The weight will never be low enough to justify. Also safety since there is no way of braking if there is any problem.
Looks to be updated shigura’s. Definitely interesting
From the article:
What's the deal with the brake?
The brakes come from the Alb ra ( Swabian Alb, editor's note 
. You may know - the three worst diseases of humanity: cholera, leprosy and from the Alb ra ( Swabian joke, editor's note 
. They come from Steffen Braungardt and he also makes the majority of the milled parts. That's why I have his prototype brake levers here now.
Are they fully adjustable?
Exactly! On the one hand, you can adjust the lever ratio, but also the free travel regardless of the grip width. The brake levers are available to fit Magura MT5 or MT7 or for Shimano brake calipers. They will be coming onto the market soon.
There's no way of braking with hydraulic brakes if they have a problem. It's easier to build a fail safe into a brake like that than it is with a hydraulic system, surely? e.g. if the caliper losses connection to the lever it could be set up automatically apply X amount of force to bring you to a controlled stop.
From personal experience if you encounter a problem with your lever, hose, or caliper on a hydraulic brake, there's nothing you're doing about it. There's no redundancy or safety built into the system at any point in terms of failures.
Don't think it has been posted yet. I notice the same in one of latest Metailler video. Looks like a trek.. might borrow a bike. But it seems weird from him to get shown on popular video without SC bike. It looks like a final version of a carbon bike too by the look and risk taken in these drops. Maybe SC thinking of doing a more traditional suspension layout and get rid of that counter rotating upper link which would be odd.
I think I saw a video of him on his Trek Slash from not too long ago. Might be prior gen Slash that he still has from the Trek days. As to why he would be riding that over a SC bike, no idea.
Those 5.10 Kestrel shoes are from ~2019 I believe.
Pretty sure that's Jackson from late 2020 or early 2021, same time Remy switched to Propain bikes (Spindrift w/ blue fork in vid).
It's an old Remy M. video that GoPro randomly posted - it's pre-SC/Redbull Jackson still on a Trek Slash. moving on!
GoPro obviously watching this thread
F1 has been brake by wire for a long time now, so the technology is relatively well developed.
Quite a few cars are drive by wire, i believe the new Porsche 911 (991 version) has electronic steering.
The real question is, why do electronic breaking on a bike, it can provide ABS, packaging? Tuneability?
No, brake by wire on F1 is for the energy recovery system, the normal brakes still work by hydraulics, like on our bikes.
The brake system literally runs through the ECU, to modulate the hydraulic pressure to maximize KERS recovery at the rear wheels under braking, that is brake by wire. Just because a human leg is providing the force for the hydraulic system (which it always will in F1, because free energy), doesn't make it not brake by wire.
https://www.formula1.com/en/latest/features/2014/5/Technical-analysis---brake-by-wire-systems-explained.html
The context here is wireless braking, kind of like it is in Alfa Giula mentioned above. They have brake by wire in F1 (as i wrote) but it is not wireless and "mostly" it is still fully hydraulic, front brakes a lot more than rear.
No, they do NOT have brake by wire in F1. They have standard hydraulic brakes with no boosters even, like most racecars. The caveat here is they use a Moog valve to modulate (remove) hydraulic pressure from the rear brakes, controlled by the ECU, to feed in the energy recovery and keep the overall braking forces and thus brake balance. Just throwing in energy recovery or removing rear hydraulic brakes would throw the balance front and back wildly and unpredictably.
Coincidentally, there have been failures on these systems, causing drivers to spin off the track (balance issues) and the first systems were notoriously finicky and not calibrated 100 %, causing some drivers issues with brake feel (some drivers are really in tune with what the car is working, so much so that changing the concept of the steering system can make or break a driver's performance).
As for Porsche being drive by wire on the steering, no, 991 introduced EPAS, electric power assisted steering, while 997 still kept hydraulic power assist. EPAS is getting more and more common as it doesn't have a hydraulic pump running all the time thus saving energy. The problem is with feel (Chris Harris drove the Singer Porsche just after 991s came out and said (paraphrasing) 'if you don't like EPAS, don't drive the Singer as the level of feel on the hydraulic Singer will make you hate EPAS even more'. And Porsche is touted to be by far the best in the EPAS game. But EPAS itself is nothing new, cars have been using it since the early 2000s at least (2nd gen Fiat Punto for sure), if not even longer.
Steer by wire means you have only a sensor on the steering wheel controlling an electric motor driving the steering rack, no mechanical connection between the wheel and the rack. With hydraulic or electric power assist you still have the steering shaft connecting the two. Same for braking, there's an actuator building the hydraulic pressure to clamp the brake discs in the calipers. Throttle by wire has been a constant for well over 20 years, replacing the cable actuated throttle valves with an actuator driven throttle valve and a potentiometer on the throttle pedal telling the ECU how much power is requested.
Fun fact, Ford GT still has a hydraulic steering rack as they use the hydraulic pump for the adjustable suspension system with adaptable ride height as well, thus making it worthwhile even though it consumes more fuel.
Now, back to rumors.
The Manitou Mezzer is still on sale at 40% off. Still no news or rumors about a gen2 or a dc-version?
EPAS is slightly more efficient than hydraulic steering, removes the need for power steering fluid (which is flammable) and is necessary for most lane keep assist systems.
None of the cars are running wireLESS electric brakes or steering or whatever.
I’ve been wondering about that myself. I honestly don’t know what the market would be for a DC Mezzer, but they already have stanchions and dampers. Machining lightweight crowns for a DC Mezzer seems like a fairly low cost experiment.
GM is right up there with electric steering. At this point hydraulic does have more feel, but EPAS in Porsche and GM communicate well enough. Throttle House picked the Camaro's steering as their preference in an ideal sports car, fwiw.
That is simply electric booster power steering. There is still a mechanical connection from steering rack to the steering wheel.
cybertruck has a wire.
no one is doing wireless.
Yup, that is correct. Electric assist instead of hydraulic.
https://www.youtube.com/watch?v=xMzFSlLZQL4
I just saw this on YouTube. Has this been talked about?
Which was exactly my point, yes. Besides f1 not being brake by wire as well.
Yes. Someone posted a pic of the crank and chainring. Which is an internal use only intend product. The post disappeared though.
That‘s weird!! I answered to the post and my post is also gone. Didn‘t delete it tho…
Internal use only...? It's Intend's Rocksteady Magic crank, isn't it?
https://www.intend-bc.com/products/rocksteady-magic/
Post a reply to: MTB Tech Rumors and Innovation