Well, MEMS are still considered gyroscopes - solid-state gyroscopes.Checkswrecks said:You're betraying our ages in "gyro-based. . . sensor" as everything is fast going MEMS.
https://en.wikipedia.org/wiki/Vibrating_structure_gyroscope#MEMS_gyroscopes
Correct me if you can show otherwise, but I don't think any motorcycle currently uses a gyro-based system for engine tipover cutoff as a simple tilt switch (e.g. mercury switch) works perfectly for this applications. Gyro-based systems are required for a sensor that detects lean while a motorcycleis in motion though and while they are becoming more common, they're still typically only found on higher-end bikes like the S1000's from BMW, the new R1s, and the KTM 1190's. The S10 has no such system, for example. The sensor may be very inexpensive, but the software that uses the sensors input and adjusts the bikes systems is anything but.Variations have gotten so inexpensive and ubiquitous that they are in everything from cell phones to satellites. In motorcycles they have been used as the tilt kill switches for a while and it is now more than a potential input. Harley has been using theirs for the turn signals as noted. The new ABS systems are incorporating input from the MEMS package into the ABS and Bosch has been the leader recently. As you wrote, they are used to de-tune or fine tune the ABS control in a turn.
I'd be surprised if Harley has a gyro-based lean angle sensor that feeds the self-canceling function, but I readily admit I know very little about Harleys.
- Mark