OPERATING NOISE CONTROL DEVICE AND OPERATING NOISE CONTROL METHOD FOR VEHICLE
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicle (1, 17) includes an electric drive motor (5, 19), an inverter (4) that provides a drive current to the electric motor (5, 19) and a controller (13) that controls the inverter (4). The controller (13) functions as a beat noise generation system that creates beat noise by generating a second operating noise containing a component an order of which is very close to a value representing an order of an operating noise generated in proportion to a rotation speed of the electric motor (5, 19) so as to create desirable traveling noise corresponding to an accelerating state while the vehicle accelerates.
-
Citations
46 Claims
-
1-23. -23. (canceled)
-
24. An operating noise control device for a vehicle, the vehicle comprising a motive power source that generates an operating noise in proportion to a rotation speed thereof, the device comprising:
a heat noise generation system that creates beat noise by generating a second operating noise with a component an order of which is close to a value representing an order of the operating noise generated by the motive power source while the vehicle accelerates. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
-
46. An operating noise control method for a vehicle, the vehicle comprising a motive power source that generates an operating noise in proportion to a rotation speed thereof, the method comprising:
creating beat noise by generating a second operating noise with a component an order of which is close to a value representing an order of the operating noise generated by the motive power source while the vehicle accelerates.
Specification