Abstract: A device configured to detect a drop of oil pressure includes: a first gate configured to receive an acceleration measured by an acceleration sensor and to output a logical value indicating whether the acceleration falls within a range that is determined by a turning cam tracking diagnosis entry acceleration and a turning cam tracking diagnosis escape acceleration; a second gate configured to invert an output of the first gate; and a third gate configured select and output one of an output value of the second gate or a first value based on a first selection signal. The device is configured to perform a turning cam tracking diagnosis entry when the output value of the third gate is the first value, and the device is configured to not perform the turning cam tracking diagnosis entry when the output value of the third gate is a second value.

Abstract: An automatic belt tensioner for a hybrid vehicle is disclosed. The automatic belt tensioner includes an arm body including an upper arm on which first and second idlers are mounted and a lower arm on which a third idler is mounted. The automatic belt tensioner further includes a spring provided between the upper arm and the lower arm and providing elastic force for relative longitudinal movement of the upper arm and the lower arm, and a rail bracket mounting the arm body on an engine and guiding relative longitudinal vertical motion of the arm body.

Abstract: An automatic belt tensioner for a hybrid vehicle is disclosed. The automatic belt tensioner includes an arm body including an upper arm on which first and second idlers are mounted and a lower arm on which a third idler is mounted. The automatic belt tensioner further includes a spring provided between the upper arm and the lower arm and providing elastic force for relative longitudinal movement of the upper arm and the lower arm, and a rail bracket mounting the arm body on an engine and guiding relative longitudinal vertical motion of the arm body.

Abstract: The present disclosure provides a testing apparatus of an auxiliary belt system. The testing apparatus of the auxiliary belt system includes: a tester bracket, a torque pulse simulation motor mounted to the tester bracket, a crankshaft pulley mounted to the tester bracket and rotated by operations of the torque pulse simulation motor, an auxiliary system mounted to the tester bracket, connected to the crankshaft pulley through a belt and rotated by rotation of the crankshaft pulley and a controller controlling operations of the torque pulse simulation motor.

Abstract: The present disclosure provides a testing apparatus of an auxiliary belt system. The testing apparatus of the auxiliary belt system includes: a tester bracket, a torque pulse simulation motor mounted to the tester bracket, a crankshaft pulley mounted to the tester bracket and rotated by operations of the torque pulse simulation motor, an auxiliary system mounted to the tester bracket, connected to the crankshaft pulley through a belt and rotated by rotation of the crankshaft pulley and a controller controlling operations of the torque pulse simulation motor.