Title:
VIBRATION CONTROL DEVICE FOR ENGINE
Document Type and Number:
Japanese Patent JP2017214961
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suitably restrain vibration transmission to a vehicle body even in a transient operation state when an actuator 30 of an engine mount 1 is controlled to diminish vibration caused by torque fluctuation of an engine.SOLUTION: Waveforms of torque fluctuation caused by inertial force and torque fluctuation caused by combustion are calculated with reference to first and second torque fluctuation storage means (first and second fluctuation waveform maps M1 and M2), and an actuator 30 is controlled based on the calculated waveforms (step ST5: vibration control means). In a transient operation state, an ignition timing difference between in a steady operation state and in the transient operation state is calculated (ST7: ignition timing difference calculating means), and a phase difference of torque fluctuation caused by combustion is calculated with reference to third torque fluctuation storage means (phase correction map M3) based on the calculated ignition timing difference (ST8: phase difference calculating means). The actuator 30 is controlled by considering the phase difference.SELECTED DRAWING: Figure 3
Inventors:
SAKTO DAIKI
Application Number:
JP2016108137A
Publication Date:
December 07, 2017
Filing Date:
May 31, 2016
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F16F15/02; F16F13/26; F16F15/08
Attorney, Agent or Firm:
Patent Business Corporation Ark Patent Office
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