Patent ID: 8181612

Claim:
A variable valve timing apparatus changing an opening/closing timing of at least any one of an intake valve ( 1100 ) and an exhaust valve ( 1110 ) of an engine ( 1000 ), comprising: an actuator ( 2060 ) operating said variable valve timing apparatus; a change mechanism ( 2000 , 3000 ) changing said opening/closing timing at a variation amount according to an operation amount of said actuator ( 2060 ); and an operation unit ( 4000 ), wherein said change mechanism ( 2000 , 3000 ) changes said opening/closing timing at a first variation amount with respect to an operation amount of said actuator ( 2060 ) in a case where said opening/closing timing is in a first region, and changes said opening/closing timing at a second variation amount larger than said first variation amount with respect to an operation amount of said actuator ( 2060 ) in a case where said opening/closing timing is in a second region different from said first region, and said operation unit ( 4000 ) controls said opening/closing timing by controlling power supply to said actuator ( 2060 ), and stops control of said opening/closing timing by stopping power supply to said actuator ( 2060 ), if a rotational speed of said engine ( 1000 ) is equal to or lower than a predetermined rotational speed, both in the case where said opening/closing timing is in said first region and in the case where said opening/closing timing is in said second region.