Circuit/System Description

This vehicle does not use a 12V starter motor to crank the internal combustion engine. A much more powerful 300V motor located within the transmission is utilized to crank the engine. This motor, drive motor 1, can rotate the engine to operating speed (800 RPM) within just a few hundred milliseconds. The hybrid/EV powertrain control module 1 can detect a condition where the engine is cranking but does not start or has stalled.