We should make cars with same break as the saw stop.
It'll be fun to watch.
This is a most excellent place for technology news and articles.
We should make cars with same break as the saw stop.
It'll be fun to watch.
Especially in the Midwest during winter.
Love how people in this post believe THE brake manufacturing company, single supplier for virtually all competition-level vehicles, not to mention billions of road vehicles, are a bunch of dumbasses who can't design a different version of their MAIN PRODUCT.
Love how people are going on about regenerative brakes when this is simply deleting the hydraulic lines for wires and actuators in a normal friction brake system.
I don’t have an issue with a new system per se. This gives me pause though.
The announcement was light on details about both the system itself and how its fail-safes are implemented
The system they propose is a brake by wire system that uses electric motors. What happens when you have no power? On an EV this might be moot. What happens after an accident and this system is damaged? I’ve seen plenty of cars start to roll after an accident until the driver applies the brakes. Tesla and their door handles not working is an example of critical systems not working after accidents. I’m mostly curious about what failsafes are in place in this new system. Seems premature for name calling without all the information.
For this system to catch on it needs to either be better than the current systems by a large enough margin, cheaper, or more reliable(aka less warranty claims).
Yeah they'll make it better I bet, if they want to proliferate it.
Right now there's also not any failsafes for the break lines failing
Yes there are.
First of all, all cars that you're actually going to drive on the road have two hydraulic brake systems that are almost entirely in parallel. Go look at the master cylinder in your car, there are two lines coming out of the side of it. The way that works is a floating piston; the brake pedal pushes on a piston that applies hydraulic pressure to the first line, and to a piston that floats in the master cylinder which applies pressure to the second line. If either hydraulic system were to fail, that floating piston will bottom out on that side and allow pressure to still be applied to the remaining hydraulic circuit.
If the rear one fails, the floating piston will physically touch the piston attached to the pedal, and be pushed directly. If the forward one fails, it'll bottom out against the free end of the master cylinder and allow the other to continue working.
Most systems connect one front wheel and one back wheel to each circuit, often in opposite corners of the vehicle. You can lose one line and still have at least partial braking force.
My car has a valve where you might lose some wheels but not all with a line failure. It’s better than nothing. The parking/emergency brake is a manual cable. Don’t know how that is implemented in this new system either.
Most vehicles have some form of dual braking system as a fail safe. Random internet image…

Umm have you heard of honking?
I’ll remember that if my brakes ever completely fail at speed and I’m about to Tbone a wall
That slows down your car?
I drive solely using one pedal on my Bolt, and brake only when I need to stop faster. As long as it's reliable and safe this should be fine. Regenerative braking is really fun.
and brake only when I need to stop faster
So you don't drive solely using one pedal then? Sometimes you use the brakes?
To add, I truly never take my car off of one pedal mode, and solely keep it in one pedal mode.
By "I drive solely using one pedal on my Bolt" with the word "drive" I imply that means normally how I drive. Such that, when I introduce the exception, "brake only" that is not typically how I drive, but rather a precautionary necessity, not a part of how I normally drive. So semantically, yes I should have added "normally" before the word "drive", or maybe "I drive 99% of the time using one pedal".
To which I would conclude that hydraulic brakes are still required equipment, even if used less frequently.
The headline is ambiguous. The thumbnail less so. The article is not. This deletes the hydraulic lines to use electrical systems to actuate otherwise-normal brakes.
I'm sure no more messy bleeding the brakes will be cheered by those who need to do brake fluids (I dislike doing it on my motorcycles). Multiple motors and pistons should still mean adequate redundancy, but more details from the manufacturer would be nice.
I have a honda with linked brakes, the precursor to ABS implementation. Rotation in the front left caliper applies one of 3 rear pistons, rotation of the rear caliper applies 1 of 6 front pistons. I have like 5 bleed valves on the 3 calipers and 2 or 3 valves inside the frame.
But it's very difficult to lock up the rear wheel. I've never had it happen in a straight line.