Thıs system ıs descrıbed very well ın the B737 systems manual under navıgatıon. It tells you the speed profıle ıt commands and the logıc behınd ıt. Chapter 12 sectıon 11.41
That's the section I was looking at as well, but I can't find much beyond:
if an engine failure is detected, target speed will be last MCP speed (V2) +20 kts if the airplane is at that speed or greater, or the existing speed if the airplane is between V2 and V2 + 20 kts
I want to know for what the FMC uses the EO ACCEL HT info.