Patent ID: 9739249
Date: 2017-08-22
CPC Classifications: F02D,F02N,Y02T

Claim:
1. An engine automatic stop and restart apparatus for stopping fuel injection into an engine to automatically stop the engine when an engine automatic stop condition is satisfied, and then restarting the engine when an engine restart condition is satisfied, the engine automatic stop and restart apparatus comprising: a crank angle sensor for detecting a crank angle of a crankshaft of the engine; a starter for cranking the crankshaft, thereby restarting the engine; and a starter drive inhibitor that inhibits, in a case where the engine restart condition is satisfied, a drive of the starter when a backward rotation of the engine is detected based on the crank angle detected by the crank angle sensor, and releases the drive inhibition of the starter when the stop of the engine is detected, wherein the starter drive inhibitor inhibits the drive of the starter when the backward rotation of the engine is detected, and releases the drive inhibition of the starter when a predetermined period has elapsed after the backward rotation of the engine is detected and the starter drive inhibitor sets the predetermined period based on the crank angle when the backward rotation of the engine is detected.