New Product from TTR - Tip-over Switch with Delay

[dontz125]

One of the differences between carbed and FI bikes is that a carbed bike on its side will usually starve of fuel before the bearings starve of oil; a well-topped FI bike may very well keep running until the engine seizes. Just about every EFI bike comes with a tip-over / 'lean angle' sensor that tells the ECU that gravity has won this match, please switch off. Early models were simple mechanical switches, with the disadvantage that a little tail shimmy in a spirited corner could chop your engine, leading to Bad Things(tm).

Burning R6.jpg (33.33 KiB) Viewed 980 times

Current Yamaha design practice uses a Hall sensor with a pendulum for a target as a lean-angle / fell-over sensor; if the ECU sees that the pendulum has been sitting at the end of its range for some predetermined time, it shuts down.

The MS and uS controllers don't have this ability to pause and think about it. A spare input could monitor the sensor value and trigger an output to block the FP relay signal, but it would be an 'ON/OFF' situation, like the original switches.

I have designed and built a stand-alone unit that is meant to be wired inline between the FP relay and pin 37 on the MS (pin 8 on the uS), and includes a timer that - after a 2.5-3 second delay - interrupts the FP signal for 10 sec. This still allows a pretty good jump sideways, but will switch off the engine quickly in the event of a crash.

Price is $50 + $10 shipping to the US, Canada, the UK, and most places. Delivery is currently 2-3 weeks.

(For those who recognise the pic - yes, that's an '06-07 R6, with a ruptured tank. No, my tip-over switch would not have saved it )