Feature: slow down send interval to ABRP when errors occur

[CONSULitAS]

Errors like this could point to congestion at ABRP which should be gracefully avoided:

07.07.2023 12:54:51.781 E: [ABRP] Network timeout error

Solution: adapt send interval dynamically, but

• try at least once a minute
• send no more than every 5 seconds

[CONSULitAS]

• send no more than every 5 seconds

from API description

The desired data rate is one point every 5 seconds, but slower rates are accepted. Less than one every 30 seconds is recommended against.

So I would suggest:

• try at least once a minute
• when transmission successful lower interval for next transmission
  • to 30 seconds when >30 seconds
• when at least 5 successful transmissions lower interval for next transmission
  • by 5 seconds

[CONSULitAS]

If the car is offline, the send interval should not be changed.

Perhaps here is a way to detect?

https://stackoverflow.com/questions/23084389/how-to-detect-device-status-offline-online-in-android

[Ixam97]

If the car is offline, the send interval should not be changed.

I've now limited timeout increases to only occure on timeout exceptions. All other connection errors do not increase the interval.