Braking by Wire
Thread Starter
Drifting
Joined: Jun 2010
Posts: 1,781
Likes: 15
From: Oxford Ohio
Braking by Wire
What are the thoughts of braking by wire? It's coming to us soon.
I wonder if there will be a fluid back up system?
It just seems to me that accelerator by wire hasn't worked out well for Toyota.
With the brake pressures developed by the fluid systems, I'm concerned with an electronic 12 volt system being able to give the results of fluid systems. With the issues electronic systems seem to have over time, will the electronic systems fail as the system degrades or when the computer craps out.
For performance applications, will they be as accurate as the human foot? Or as responsive?
At least that will end boiling the brake fluid.
I wonder if there will be a fluid back up system?
It just seems to me that accelerator by wire hasn't worked out well for Toyota.
With the brake pressures developed by the fluid systems, I'm concerned with an electronic 12 volt system being able to give the results of fluid systems. With the issues electronic systems seem to have over time, will the electronic systems fail as the system degrades or when the computer craps out.
For performance applications, will they be as accurate as the human foot? Or as responsive?
At least that will end boiling the brake fluid.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,118
From: Crossville TN
With these type of 'indirect' control systems, the main concern is what happens with all of the potential failure points. Will you lose braking ability? Is there a back-up system? (If a back-up system is needed, then it wouldn't make sense to brake-by-wire in the first place.) How does the vehicle react upon malfunction of the various components in the braking system?
It's possible that the Emergency brake on a vehicle with 'brake-by-wire' system would be much sturdier and capable of meeting the needs of the vehicle all by itself.
Note: You are surprised that more vehicles don't operate this way already. I've been surprised that steering wheels haven't been replaced by 'joystick' controls within the last 20 years! A center console mounted joystick could control acceleration, steering and braking AND, if the driver wanted to "take a break", the passenger could take over without ever stopping the car....
It's possible that the Emergency brake on a vehicle with 'brake-by-wire' system would be much sturdier and capable of meeting the needs of the vehicle all by itself.
Note: You are surprised that more vehicles don't operate this way already. I've been surprised that steering wheels haven't been replaced by 'joystick' controls within the last 20 years! A center console mounted joystick could control acceleration, steering and braking AND, if the driver wanted to "take a break", the passenger could take over without ever stopping the car....
Burning Brakes
Joined: Apr 2008
Posts: 1,222
Likes: 93
From: shelbyville West Michigan
Note: ...I've been surprised that steering wheels haven't been replaced by 'joystick' controls within the last 20 years! A center console mounted joystick could control acceleration, steering and braking AND, if the driver wanted to "take a break", the passenger could take over without ever stopping the car....
Gotta love google . Just found it: Popular Mechanics, issue April 1967, "Amazing new control stick for your car-steer, stop, accelerate with one hand" You can read the magazine on google books...
Last edited by gungatim; May 15, 2013 at 02:09 PM. Reason: found it
Le Mans Master
Joined: Feb 2011
Posts: 5,943
Likes: 61
From: Southern NH
Throttle by wire has been used regularly since early 2000s with only Toyota (drivers) really screwing something up. (they seriously had time to call 911 and have a conversation but couldn't shut of the ignition, and throw it into neutral? 
)
The Chevrolet Volt has an electric brake assist system. You need the GM computer to bleed the brakes, because the pedal will always feel hard even if there is zero fluid in the system. that's the direction we're headed right now.
)The Chevrolet Volt has an electric brake assist system. You need the GM computer to bleed the brakes, because the pedal will always feel hard even if there is zero fluid in the system. that's the direction we're headed right now.
Team Owner
Joined: Jun 2000
Posts: 38,923
Likes: 1,481
From: Southbound
Cruise-In II Veteran
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Melting Slicks
Joined: Mar 2007
Posts: 2,520
Likes: 11
From: Hinckley OH
I've been surprised that steering wheels haven't been replaced by 'joystick' controls within the last 20 years! A center console mounted joystick could control acceleration, steering and braking AND, if the driver wanted to "take a break", the passenger could take over without ever stopping the car....