JP2000316201A - Simulated engine sound generator - Google Patents

Abstract

(57) [Summary] [Problem] An automobile or the like driven by an electric motor has no engine sound and is quiet, so it is difficult to hear running noise even when approaching a passing person, and it is dangerous. It is difficult to grasp the relationship between accelerator and acceleration. In a vehicle driven by a motor, a current detector interposed in a wiring between a motor and a battery, a pseudo voice controller connected to the current detector, and a pseudo voice With a speaker connected to the controller, furthermore, a movable amount detector that detects a change in the movable amount from the accelerator, and a pseudo voice controller that generates a pseudo voice based on the amount of fluctuation from the movable amount detector , A speaker connected to the pseudo-voice controller, and in addition, a speed detector provided at a rotating part of the vehicle, a pseudo-voice controller connected to the speed detector by wiring, and a pseudo-voice controller And a speaker connected thereto.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for generating a pseudo engine sound as required in a vehicle having a quiet engine sound, that is, an electric vehicle, an electric bicycle, a general human-powered bicycle, and the like.

[0002]

2. Description of the Related Art The development of electric vehicles equipped with environmentally friendly electric motors replacing conventional gasoline engines and diesel engines is rapidly progressing, and the development of electric bicycles equipped with electric motors replacing human power is also progressing. It is.

[0003]

However, this type of electric motor drives automobiles, bicycles, or man-powered bicycles without any engine noise and is quiet even when approaching a person passing outside. Driving noise is difficult to hear and is dangerous,
Also, it is difficult for the driver to grasp the relationship between the accelerator and the acceleration.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and as a result of diligent studies, the pseudo engine sound generating device according to claim 1 is a vehicle driven by an electric motor. , A current detector interposed in the wiring between the motor and the connected battery, a pseudo voice controller connected to the current detector, and a speaker connected to the pseudo voice controller is there.

[0005] Further, a pseudo engine sound generating device according to claim 2 is a vehicle driven by an electric motor,
A movable amount detector that detects a change in the movable amount from the movable part of the accelerator, a pseudo sound controller that generates a pseudo sound based on the amount of fluctuation from the movable amount detector, and a speaker connected to the pseudo sound controller It is provided with.

In addition, a pseudo engine sound generating device according to a third aspect of the present invention provides a pseudo engine sound generator provided at a rotating part of a vehicle for detecting a rotational speed, and a pseudo voice controller connected to the rotational speed detector by wiring. And a speaker connected to the pseudo voice controller.

Accordingly, an object of the present invention is to create and provide a device for generating a pseudo engine sound instead of an engine sound for an electric vehicle, an electric bicycle, a human-powered bicycle, etc., whose running sound is quiet.

[0008]

The pseudo engine sound generating apparatus according to the present invention includes a current detector, a movable amount detector, or a rotation speed detector, and generates a pseudo sound controller for changing a sound by respective detection signals, and a pseudo engine sound. By having a speaker that can be generated, it is possible to notify people around you even while driving,
Furthermore, the driver can control the acceleration by the pseudo engine sound.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A pseudo engine sound generating apparatus of the present invention which has achieved the above object will be described below with reference to the drawings of the embodiments.

FIG. 1 is a block diagram showing an outline of an embodiment of a pseudo engine sound generator of the present invention, and FIG. 2 is a block diagram showing an outline of a next embodiment of the pseudo engine sound generator of the present invention. FIG. 3 is an explanatory view showing a case where the pseudo engine sound generating apparatus according to another embodiment of the present invention is mounted on a bicycle.

The present invention relates to a vehicle having a quiet engine sound,
The present invention relates to a device for generating a pseudo engine sound as required in an electric vehicle, an electric bicycle, a general human-powered bicycle, and the like, and a vehicle driven by an electric motor 1 according to the pseudo engine sound generating device according to claim 1. , A current detector 4 interposed in a wiring 3 between the motor 1 and the battery 2 connected thereto, a pseudo voice controller 5 connected to the current detector 4, and a pseudo voice controller 5 And a speaker 6 connected thereto.

Further, in the vehicle driven by the electric motor 1, the pseudo engine sound generating device according to the second aspect includes a movable amount detector 4A for detecting a change in the movable amount from a movable portion of the accelerator 7, and a movable amount detector 4A. A pseudo sound controller 5 for generating a pseudo sound based on the amount of fluctuation from the detector 4A, and a speaker 6 connected to the pseudo sound controller 5 are provided.

In addition, a pseudo engine sound generating device according to a third aspect of the present invention includes a rotational speed detector provided at a rotating portion of a vehicle for detecting a rotational speed;
3 and a speaker 16 connected to the pseudo-sound controller 15.

That is, the electric motor 1 according to the embodiment of the present invention is connected to the driving wheels of an electric vehicle to provide a rotating force for traveling.
The battery 2 supplies electricity to the motor 1 via a wire 3 and supplies electric power to the motor 1 via a wire 3.

A current detector 4 is interposed in a wiring 3 connecting the motor 1 and the battery 2. The current detector 4 detects an amount of current that changes by operating an accelerator 7 described later. And outputs it as a detection signal to a pseudo voice controller 5 described later.

Next, a pseudo voice controller 5 controls the volume of a pseudo engine sound similar to the engine sound of an automobile, and is connected to the current detector 4 and receives the detection signal of the current detector 4. Things.

Further, the speaker 6 is connected to the pseudo voice controller 5 and generates a pseudo engine sound by a pseudo voice generation signal output from the pseudo voice controller 5, and the pseudo engine sound is a change in volume. , A sound similar to the engine sound of a car, such as a change in the number of modulations (cycles) and switching between single sound and double sound.

Further, as shown in FIG. 1, a motor controller 8 connected to an accelerator 7 is interposed in a wiring between the battery 2 and the current detector 4, that is,
When the driver depresses the accelerator 7, the motor controller 8 operates, and the motor 1 is set and rotates by the output of the motor controller 8, and the vehicle runs at the set speed.

In other words, the driver controls the speed of the vehicle by depressing, relaxing, or releasing the accelerator 7. At this time, the motor controller 8 is also operated, and the output of the motor controller 8 is controlled. Changes the power amount to the motor 1, and the change in the power amount is detected by the current detector 4.

Further, in a second embodiment of the pseudo engine sound generating device according to the present invention, as shown in FIG.
The motor 1 and the battery 2 are connected by a wiring 3 with a motor controller 8 interposed therebetween, and the motor controller 8 is connected to an accelerator 7 for controlling the speed, so that the driver can step on, relax, and release the accelerator 7 By doing so, the motor controller 8 operates, and the motor 1 is set and rotated by the output of the motor controller 8, and the vehicle runs at the set speed.

A moving amount detector 4A for detecting a change in the moving amount from the moving part of the accelerator 7 is provided in place of the detection of the electric amount of the current detector 4 described above. In order to control, the degree of stepping is adjusted in accordance with the speed, and the amount of movement of the movable portion that moves when stepping is detected by the movable amount detector 4A.

That is, when the accelerator 7 is moved, the motor controller 8 operates, and the motor 1 is set and rotated by the output of the motor controller 8, and the vehicle runs at the set speed. Detects the movable amount of the movable portion of the accelerator 7 with the movable amount detector 4A,
A, a detection signal is output to the pseudo-sound controller 5, and the pseudo-sound generation signal output from the pseudo-sound controller 5 outputs a speaker 6.
Generates a pseudo engine sound.

Furthermore, the pseudo engine sound generating device according to the third aspect detects the number of revolutions, and can be applied to, for example, a human-powered bicycle without using the motor 1.

That is, the rotating part 11 of the vehicle means all parts such as a motor, a transmission, a drive shaft, wheels, gears, belts, wheels, etc., which rotate as the vehicle travels. Is provided with a rotation speed detector 14 described later.

As shown in FIG. 3 of the next embodiment, for example, a rotation type detector 14 is provided with a reflective disc provided with a slit 12 on a front wheel which is a rotating part 11 of a bicycle, and is mounted on a non-rotating part. Light is emitted from the reflection type rotation speed detector 14 provided, and the number of times the reflected light is blocked by the slit 12 is detected to detect the rotation speed.

Next, the rotation speed detector 14 is connected to the pseudo voice controller 15 via the wiring 13, and outputs a detection signal detected by the rotation speed detector 14 to the pseudo voice controller 15 as described above. The pseudo voice controller 15 controls the pseudo engine sound by inputting a detection signal, and the pseudo voice controller 1
A pseudo engine sound is generated from a speaker 16 connected to the speaker 5.

The pseudo engine sound generator of the present invention is
By interposing an N-OFF switch, it is needless to say that the switch is turned off when it is unnecessary or when there is a risk of inconvenience to others.

[0028]

According to the pseudo engine sound generating apparatus of the present invention, in the electric vehicle and the electric bicycle, the running state can be notified to the surrounding people in the electric vehicle and the electric bicycle, and the driver can know the running state by the pseudo engine sound. It is effective in traffic safety because it can be grasped, and furthermore, with a human-powered bicycle, the running state can be accurately judged, and the enjoyment of running increases.
This is a revolutionary and highly practical invention.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an outline of an embodiment of a pseudo engine sound generating device of the present invention.

FIG. 2 is a block diagram showing an outline of a next embodiment of the pseudo engine sound generating device of the present invention.

FIG. 3 is an explanatory view of a case where the pseudo engine sound generating apparatus according to another embodiment of the present invention is mounted on a bicycle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Motor 2 Battery 3 Wiring 4 Current detector 4A Moving amount detector 5 Pseudo voice controller 6 Speaker 7 Accelerator 8 Motor controller 11 Rotation part 12 Slit 13 Wiring 14 Rotation speed detector 15 Pseudo voice controller 16 Speaker

Claims (3)

[Claims] 1. A vehicle driven by an electric motor, comprising: a current detector interposed in a wiring between the motor and a battery; a pseudo voice controller connected to the current detector; A pseudo engine sound generator comprising a pseudo voice controller and a speaker connected thereto. 2. A vehicle driven by an electric motor, a movable amount detector for detecting a change in speed from a movable portion of an accelerator, and a pseudo voice for generating a pseudo voice based on a variation from the movable amount detector. A pseudo engine sound generating device comprising: a controller; and a speaker connected to the pseudo voice controller. 3. A vehicle comprising: a rotation speed detector provided at a rotating part of a vehicle for detecting a rotation speed; a pseudo voice controller connected to the rotation speed detector; and a speaker connected to the pseudo voice controller. A pseudo engine sound generator.