NOISE CONTROL DEVICE FOR VEHICLE

PROBLEM TO BE SOLVED: To provide a noise control device for a vehicle capable of reducing a load of a vehicle-mounted power source and implementing high suppressing efficiency of intake noise. SOLUTION: A noise control device 1 for a vehicle is arranged in an intake system 9 having a pipe body for partitioning an intake port 900 opened to the outside of a vehicle and an intake passage 95 for communicating between the intake port 900 and a combustion chamber 96 of an engine, and equipped with a sound collecting part 4 which is arranged in the intake passage 95 and which detects intake noise propagated from the combustion chamber 96 and forms noise current from the intake noise, a control part 3 which is electrically connected to the sound collecting part 4 and which forms control current of substantially inverted phase to the noise current and a sounding part 2 which is arranged closer to the intake port 900 than the sound collecting part 4 and which forms control sound from control current and sounds the control sound. The noise control device 1 for a vehicle utilizes the noise current as at least a part of power source current. COPYRIGHT: (C)2006,JPO&NCIPI