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RE: The Renault Dauphine had one.

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Victor Khomenko

M

In Reply to: RE: The Renault Dauphine had one. posted by ghost of olddude55 on November 21, 2024 at 06:15:30

Brakes by wire are more reliable than cables or hydraulic lines, so it is an easy choice. Master cylinder failures was big problem.
Cylinder deactivation - does anyone still do that? I thought it died with the Caddies. I would not give a shit if it had to be consciously engaged.
Auto stop/start is something some people like, it is easily permanently disable on my BMW, I think this is how it should be: you want it you use it, if not then not. On my wife's Audi you have to do it every time you start the engine, that is more annoying, but she automatically does it.

Edits: 11/21/24 11/21/24

Follow Ups:

I've only ever had one master cylinder fail - ghost of olddude55 06:36:55 11/21/24 (2)
In a Ford Pinto. The front brakes still worked, but the rears didn't.
Regardless, brake by wire brakes are still hydraulic. There just isn't any mechanical connection between the brake pedal but there's still a hydraulic system. According to Wikipedia, fully electronic service brakes aren't in any production cars.
Brake by wire fails, somebody has to connect a scan tool, look at live data, run a diagnosis, hope for the best. And prepare to pay. Those systems might save money for the car maker but they cost the owner a lot more to repair.
Cylinder deactivation is widespread and has been for about a decade. All of GM's V8 and V6 engines use it, Honda uses it in its V6 engines, VW uses it in the 1.5-liter turbo 4-cylinder, based on what I read Ford uses it in a 1.5-liter three-cylinder. Cylinder deactivation in a three-cylinder engine!
My neighbor's GMC truck has cylinder deactivation--GM called it "Active Fuel Management"--and it's been a problem. He has a device that plugs into the OBD2 port and overrides the ECM when it commands cylinder shut down, but all the mechanical bits are still there and they're prone to failure.
Turning auto stop/start off keeps the engine from wearing itself out prematurely but the system still needs electronic control and a second battery in order to work.

The blissful counterstroke-a considerable new message.
- "somebody has to connect a scan tool" Modern life sucks - Victor Khomenko 06:50:32 11/21/24 (1)
  Used to be, you wrote your message on a piece of paper, put it into an envelope, postage attached... and by the time you received the response you forgot the question.
  
  These days you must have a computer... what a drag... :)
  
  But I will give you this honor - you are well on your way to out-luddite me. :)
  - I don't even have a problem with that. - ghost of olddude55 06:55:50 11/21/24 (0)
    In fact, I have my own scan tool.
    But taking the car to a guy who's going to diagnose the problem correctly, that all has to be paid for on top of any mechanical repairs.
    The more controllers on the network, the more expensive it is to diagnose and repair issues when they arise. And they will.
    The dual-circuit brake system is simple. There's no reason for brake by wire, it's just reinventing the wheel.
    
    The blissful counterstroke-a considerable new message.

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