Synchronous loss in steady engine operation.
When I check "*cpba_tooth_period_log" in “crank_instance_t",I foung some member become very small。
The experimental results are as follows.While running, etpu_tooth_period_log[80] suddenly drops from 33800 to 21800.And crank states err occur.The rest of the etpu tooth period log(log[0],log[40],log[119],) data looks normal.
I checked the input crankshaft original signal and there was no signal anomaly when the fault occurred.I tested the duration of the first 1 and 2 teeth of the failure,They all last around 820us.
Here are some of my eTPU parameter matching values
So how can I find the cause of the problem? Thank you very much!
My Crank config is as follows:
