Operating noise control device and operating noise control method for vehicle
First Claim
1. 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.
1 Assignment
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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.
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Citations
23 Claims
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1. 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 (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. 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