| 摘要 |
PROBLEM TO BE SOLVED: To achieve effective vibration-proof performance for a positive type vibration-proof supporting device in a transitive period in which an engine transfers from all-cylinder operation into cylinder-halted operation. SOLUTION: In a stationary cylinder-halted operation in which the vibration state of the engine can be easily estimated based on a crank pulse signal, an actuator of a positive type vibration-proof supporting device is controlled based on the vibration state of the engine as estimated. In the meanwhile, in a transitive period from the all-cylinder operation into the cylinder-halted operation in which the vibration state of the engine is hard to be estimated based on the crank pulse signal, the actuator of the positive type vibration-proof supporting device is controlled based on the vibration state of the engine searched by applying engine frequency and intake negative pressure to a preset map. The positive type vibration-proof supporting device is, therefore, capable of achieving effective vibration-proof performance from the transitive period from the all-cylinder operation into the cylinder-halted operation to the stationary cylinder-halted operation. COPYRIGHT: (C)2004,JPO&NCIPI |
