Brake Force Flashing Brake Lights?

[2020BRZtS]

Originally Posted by x808drifter

No it is not.

S5.5.10 The wiring requirements for lighting equipment in use are:
(a) Turn signal lamps, hazard warning signal lamps, and school bus warning lamps shall be wired to flash;
(b) Headlamps and side marker lamps may be wired to flash for signaling purposes;
(c) A motorcycle headlamp may be wired to allow either its upper beam or its lower beam, but not both, to modulate from a higher intensity to a lower intensity in accordance with section S5.6;
(d) All other lamps shall be wired to be steady-burning" [emphasis added].

I am not doubting you since I found the same document but there is an updated version of the code from October 2020 that changes the way this is worded. It becomes a bit more vague and open for interpretation as the steady burning is described as required for the 2 standard stop lamps and is intended on the hi-mount stop light.

[Spektyr]

Originally Posted by racingfool

I'll agree on both points.

Wouldn't completely g-force triggered brake lights make sense?
Downshift and let off the gas and the brake lights go on.
Hit the brakes and decelerate a bit harder and the lights flash. (.5g?)
Throw out the anchor and the lights flash very quickly. (more than a g?)

Look at the big brain on this guy...

Yeah, it's more important what the car is ACTUALLY doing than what some (potential) idiot thinks they're going to do.

The concern would be the accuracy/reliability of a g-force sensor, but then again there are so many people driving around with only 1 (or fewer) working brake lights that it kind of seems like a moot point by comparison. (This utterly baffles me. Where I live we have people making right AND left turns into the incorrect lane as a rule rather than the exception, reverse lights somehow wired to come on with the parking lights, and a shocking amount of just totally inoperable brake lights. The police around here only seem to pull you over if you're firing full auto while snorting cocaine off the butt of a dead hooker. Or if they're running a speed trap. But I digress.)

On a modern car you could trigger it by the rate of change in speed as read by the ECU, provided it's triggered quickly enough (not sure what the typical polling interval is.) Potentially even use it as a backup to the existing brake light switch, though that doesn't solve the problem of the morons burning their pads off riding the brakes at highway speed.

Honestly, the lack of pain induced by stupidity is one of the greatest crimes of reality.