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OpenSourceEBike / TSDZ2-Smart-EBike

Flexible OpenSource firmware for TongSheng TSDZ2 mid drive ebike motor
GNU General Public License v3.0
251 stars 130 forks source link

Wheel speed sanity check #145

Open iamblacklite opened 3 years ago

iamblacklite commented 3 years ago

Firmware is amazing 👍 Thankyou!

Only have one problem. Occasionally I’m getting false readings from the speed sensor, with the display showing a speed in the 100’s. The overwrites the assistance level on the display, and of course cuts out any motor assistance. When it comes good the 3 digit incorrect speed is not fully cleared and the first digit continues to stay on the screen. Would it be possible for the speed sensor to have a sanity check eg. If the value derived is over say 70-80km/h throw it away and don’t update it?

stefesciberras commented 3 years ago

I second this. For some reason, my speed is detected as being >100, sometimes >w200.

This only happens when i am pedalling, the speed sensor works great when coasting.

Of course, when this happens, power is off, and it happens at the worst time: up a hill, coming out from an intersection etc

PrivatePuffin commented 1 year ago

Firmware is amazing 👍 Thankyou!

Only have one problem. Occasionally I’m getting false readings from the speed sensor, with the display showing a speed in the 100’s. The overwrites the assistance level on the display, and of course cuts out any motor assistance. When it comes good the 3 digit incorrect speed is not fully cleared and the first digit continues to stay on the screen. Would it be possible for the speed sensor to have a sanity check eg. If the value derived is over say 70-80km/h throw it away and don’t update it?

This would take up already limited calculations, I think you might want to double check all connectors, as this sounds a bit like flickering a short in the speed sensor.