What If Your Electronic Brakes Fail?
Brake-by-wire isn’t some sci-fi fantasy anymore. It’s already here, with plenty of new cars ditching old-school cables and rods for sensors, computers, and electronic gizmos. Instead of a direct link between your foot and the brakes, the car now reads your pedal press and decides how hard to clamp down – all through electronics.
However, this approach also raises an important question: What happens when the electronics responsible for stopping your car fail?
Bosch thinks it has a solution. The company just filed a patent for a backup braking system that steps in when the main electronics go on vacation. Basically, it’s an extra safety net that could let you bring your car to a stop even if the usual tech throws in the towel.
CarMoses
Bosch’s Backup Plan Includes a Touchscreen Button
First spotted by CarMoses, the patent describes a system that uses three separate control units. The first and second handle the vehicle’s regular braking operations, while the third continuously monitors them for potential failures.
If the third control unit detects that either of the other units has malfunctioned, it can activate an emergency braking function. It can also notify the driver through visual, audible, or haptic warnings.
What’s particularly interesting is how Bosch proposes allowing the driver to request braking. Rather than relying exclusively on a conventional brake pedal, the system could provide an emergency button through the vehicle’s infotainment touchscreen. Another proposed implementation places the control directly on the steering wheel, where it’s easier to reach without taking your hands off the wheel.
You might even get to control how hard you stop – hold the button for more braking, tap for less. Bosch says you could ease into a stop instead of slamming to a halt, which sounds nice in theory.
This makes the concept different from a conventional automatic emergency braking system, which generally intervenes to avoid or mitigate a collision. Bosch’s proposal instead focuses on giving drivers an alternative braking interface when the regular electronic controls become unavailable.
CarMoses
Could This Actually Appear in Production Cars?
With more brands jumping on the brake-by-wire bandwagon, having a backup brain and a new way to hit the brakes could be a smart move if the electronics ever flake out.
But let’s be real: in a panic, hunting for a virtual brake button on a screen sounds like a recipe for chaos. A button on the steering wheel might make more sense, but it’s still a far cry from stomping on a pedal. For now, this is just a patent, not a promise. Like plenty of wild ideas before it, there’s no guarantee it’ll ever make it into your next car.
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About the author
Jacob Oliva
Senior Editor, Autoblog