Auto Stop/Start Strategy

WARNING: This page is about a different variant/trim than selected.

Engine restart without Belt Integrated Starter Generator (BISG) or starter motor intervention:

This is when an auto stop sequence begins, but before the engine stops fully and it is necessary to start the engine again. For example, the traffic lights go to green. The Powertrain Control Module (PCM) detects engine restart parameters from a driver action or system request. The PCM activates the fuel injection and ignition systems to allow the engine to continue to operate. This is available at a variable engine speed threshold which depends on engine type.

Engine restart with BISG or starter motor intervention:

If the PCM cannot restart the engine without intervention, the PCM uses the BISG or the starter motor to control engine restart. If an engine restart is initiated, the PCM activates the BISG at the earliest opportunity to rotate the engine. The PCM activates the BISG through the High Speed (HS) Controller Area Network (CAN) power mode zero bus. Then on the first available compression, the PCM operates the fuel injection and ignition systems to restart the engine in less than 0.36 second.