Electric vehicle with sound wave function
By installing speakers and audio amplifiers on electric vehicles and using speed control signals to control the sound effects, the problem of the lack of sound in electric vehicles has been solved, and the auditory experience has been improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DONGGUAN FENGMA NEW ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2026-02-09
- Publication Date
- 2026-06-05
AI Technical Summary
Electric vehicles lack the sound of engine noise, failing to satisfy the auditory needs of people who crave speed and excitement.
Speakers are installed on electric vehicles, and audio amplifiers are connected to speed controllers. By collecting speed control signals, the speakers are controlled to play sound effects that simulate the sound of traditional gasoline cars.
It enables electric vehicles to produce sound effects when accelerating, satisfying people's psychological needs and enhancing their auditory experience.
Smart Images
Figure CN122144045A_ABST
Abstract
Description
Technical Field
[0001] This invention discloses an electric vehicle, particularly an electric vehicle with a sound function, belonging to the field of personal transportation technology. Background Technology
[0002] Electric bicycles are two-wheeled vehicles that use onboard lithium batteries / rechargeable batteries as auxiliary power and have the ability to be pedaled. They are classified as non-motorized vehicles. Electric motorcycles are motorcycles that are powered by electricity and usually do not have pedals. Electric motorcycles can be divided into light electric motorcycles (maximum speed ≤ 50km / h) and ordinary electric motorcycles (maximum speed > 50km / h), both of which are classified as motorized vehicles.
[0003] Whether it's an electric bicycle or an electric motorcycle, because they are both driven by electric motors, there is no sound during the entire process. For people who pursue speed and passion, the roar of a traditional gasoline car engine (often referred to as "engine roar") can evoke a sense of excitement. However, since electric vehicles do not have an engine, there is no engine roar, which may leave some people feeling that they lack a certain auditory satisfaction. Summary of the Invention
[0004] To address the aforementioned drawback of electric vehicles lacking engine sound in existing technologies, this invention provides an electric vehicle with an engine sound function. A speaker is fixedly mounted on the vehicle frame, and an audio amplifier is connected to the vehicle's speed controller. The amplifier collects the speed control signal from the speed controller and controls the speaker to play engine sound effects based on the strength of the speed control signal, thus enabling the electric vehicle to have an engine sound function.
[0005] The technical solution adopted by the present invention to solve its technical problem is: an electric vehicle with a sound function, the electric vehicle includes a frame, wheels, a seat, a speed controller, a horn and a control system. The wheels are mounted on the frame, the seat is mounted on the frame, the control system is mounted inside the frame, the speed controller is directly or indirectly mounted on the frame and electrically connected to the control system, the speed controller outputs a speed control signal to the control system, and the horn is mounted on the frame and electrically connected to the control system.
[0006] The technical solution adopted by the present invention to solve its technical problem further includes: The frame is equipped with handlebars, and the speed controller is installed at the right grip position of the handlebars.
[0007] The handlebars are also equipped with brakes.
[0008] The speaker is installed under the seat.
[0009] The control system includes a central control module, a speed controller interface, a drive module, a motor, an audio amplifier module, and a speaker. The speed controller interface is connected to the central control module, the drive module is connected to the central control module, the audio amplifier module is connected to the central control module, and the speaker is connected to the audio amplifier module.
[0010] The speed controller uses a Hall effect throttle. The motor is a brushless motor, and the drive module includes a first drive module, a second drive module, and a third drive module, which are respectively connected to the motor.
[0011] The central control module is also connected to a Bluetooth module, which is connected to the audio amplifier module.
[0012] A brake module is connected to the central control module.
[0013] The central control module is connected to a motor Hall interface, and the motor Hall interface is connected to a motor Hall module.
[0014] The beneficial effects of this invention are: a speaker is fixedly installed on the frame of the electric vehicle, and an audio amplifier is connected to the electric vehicle speed controller. The speed control signal of the electric vehicle speed controller is collected, and the speaker is controlled to play sound effects according to the strength of the speed control signal, so that the electric vehicle can achieve the effect of having sound effects and satisfy people's psychological needs.
[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0017] Figure 2 This is a schematic diagram of the second perspective three-dimensional structure of the present invention.
[0018] Figure 3 This is a circuit block diagram of the present invention.
[0019] Figure 4 This is a circuit diagram of the motor control section in this invention.
[0020] Figure 5 This is a circuit diagram of the audio power amplifier section in this invention.
[0021] Figure 6 This is a circuit diagram of the Bluetooth module in this invention.
[0022] In the picture, 1-frame, 2-wheel, 3-seat, 4-handlebars, 5-speed controller, 6-brake, 7-horn. Detailed Implementation
[0023] This embodiment is a preferred embodiment of the present invention. All other embodiments that are the same as or similar to this embodiment in principle and basic structure are within the protection scope of the present invention.
[0024] Please refer to the appendix for details. Figure 1 To be continued Figure 6 This invention primarily protects an electric vehicle with a sound function, which mainly includes a frame 1, wheels 2, a seat 3, a speed controller 5, a horn 7, and a control system. The wheels 2 are mounted on the frame 1, the seat 3 is mounted on the frame 1, the control system is installed inside the frame 1, the speed controller 5 is directly or indirectly mounted to the frame 1, and the speed controller 5 is electrically connected to the control system. The speed controller 5 outputs a speed control signal to the control system. The horn 7 is mounted on the frame 1 and is electrically connected to the control system. The control system drives the horn 7 to emit a sound. When the speed controller 5 adjusts the speed, the speed control signal is transmitted to the control system. On the one hand, the control system drives the motor to rotate according to the magnitude of the speed control signal, and the motor drives the vehicle forward. On the other hand, the control system controls the frequency and magnitude of the sound emitted by the horn 7 according to the magnitude of the speed control signal, which can simulate the sound emitted by a traditional gasoline motorcycle when accelerating, and can satisfy people's psychological needs.
[0025] In this embodiment, a handlebar 4 is installed on the frame 1, and a speed controller 5 is installed at the right grip position of the handlebar 4. This not only conforms to people's daily usage habits, but also further enhances the simulation effect. Combined with the feel and hearing, it can better meet people's psychological needs.
[0026] In this embodiment, a brake 6 is also installed on the handlebar 4, which can be used to pull the brake cable to perform braking operation.
[0027] In this embodiment, the horn 7 is preferably installed under the seat 3, close to the position of the exhaust pipe of a traditional gasoline motorcycle, so that the sound simulation effect is more realistic. One or two horns 7 can be set according to actual needs. In this embodiment, two are used as an example, one is installed on the left and one on the right side of the frame 1.
[0028] In this embodiment, the control system mainly includes a central control module, a speed controller interface, a drive module, a motor, an audio amplifier module, and a speaker (i.e., horn 7, which is both part of the control system and a structural component). The speed controller interface is connected to the central control module and is used to install and connect the speed controller 5. The drive module is connected to the central control module, and the central control module outputs control signals to the drive module, which drives the motor to rotate. In this embodiment, the motor can be a hub motor, which directly drives the wheel 2 to rotate. Alternatively, a regular motor can be used, which drives the wheel 2 to rotate through a transmission device (such as a chain, gear, belt, connecting rod, etc., preferably a chain). The audio amplifier module is connected to the central control module, and the central control module outputs audio signals to the audio amplifier module. In this embodiment, the audio signal of the sound wave is stored in the central control module (or an external storage module). When needed, the central control module directly retrieves the audio signal of the sound wave and transmits it to the audio amplifier module. The speaker is connected to the audio amplifier module, and the audio amplifier module drives the speaker (i.e., horn 7) to emit sound.
[0029] In this embodiment, the central control module can use a microcontroller as the MCU. The microcontroller can be a conventional small microcontroller such as the 51 series, TI series, or PIC series, which can meet the requirements. In this embodiment, the 51 series is used as an example for explanation.
[0030] In this embodiment, a speed controller 5 is connected to the speed controller interface. The speed controller 5 can be a Hall effect speed control throttle (also known as a Hall effect throttle), which can convert the throttle angle into a continuous voltage signal, allowing the central control module to achieve stepless speed regulation. It is more durable and resistant to interference than a potentiometer throttle. Of course, in specific implementation, a potentiometer throttle can also be used as the speed controller 5.
[0031] In this embodiment, the motor is preferably a brushless motor, driven by three motor driver chips. The drive module includes a first drive module, a second drive module, and a third drive module. The first drive module, the second drive module, and the third drive module are respectively connected to the motor, and drive the motor to rotate through the first drive module, the second drive module, and the third drive module. In this embodiment, the drive module can be a half-bridge gate driver chip of model IR2013. In specific implementation, other models of driver chips can also be used instead.
[0032] In this embodiment, the central control module is also connected to a Bluetooth module, which can connect to a mobile phone or other device to play music or other audio. The music is then transmitted to this invention via Bluetooth and played through speaker 7, thus using this invention as a Bluetooth speaker. In this embodiment, the Bluetooth module can use a JL7012C Bluetooth chip. The Bluetooth module connects to the central control module via a serial interface (TX and RX interfaces). In practice, other Bluetooth chip models can also be used. In this embodiment, when using the Bluetooth function, the central control module stops outputting the sound signal, and speaker 7 is used only as a Bluetooth speaker. In practice, a switch can also be provided for users to choose the appropriate mode, increasing ease of use.
[0033] In this embodiment, a brake module is also connected to the central control module. The brake module is linked to the brake 6. When the user squeezes the brake 6, the brake module outputs a brake signal to the central control module. When a brake signal is present, rotating the speed controller 5 will cause the central control module to only output a sound signal and not a motor drive signal, thus simulating the sound of a motorcycle with its clutch engaged and throttle gripped. Of course, while the vehicle is in motion, squeezing the brake 6 can also simulate the sound of braking or tires rubbing against the ground. In specific implementation, the settings can be customized according to requirements.
[0034] In this embodiment, a motor Hall interface is also connected to the central control module, and a motor Hall module is connected to the motor Hall interface. The motor speed can be detected by the motor Hall module and the speed can be fed back to the central control module.
[0035] The central control module can also be connected to conventional electric vehicle modules such as lighting modules, turn signal modules, power detection modules, and display modules. These are not the focus of this invention, and they can all be conventional modules in the prior art.
[0036] This invention features a speaker fixedly mounted on the frame of an electric vehicle. An audio amplifier is connected to the electric vehicle's speed controller, which collects the speed control signal from the speed controller. Based on the strength of the speed control signal, the speaker is controlled to play a sound effect, enabling the electric vehicle to have a sound function and satisfying people's psychological needs.
Claims
1. An electric vehicle with a sound function, characterized in that: The electric vehicle includes a frame (1), wheels (2), a seat (3), a speed controller (5), a horn (7), and a control system. The wheels (2) are mounted on the frame (1), the seat (3) is mounted on the frame (1), the control system is mounted inside the frame (1), the speed controller (5) is directly or indirectly mounted on the frame (1), and the speed controller (5) is electrically connected to the control system. The speed controller (5) outputs a speed control signal to the control system. The horn (7) is mounted on the frame (1), and the horn (7) is electrically connected to the control system.
2. The electric vehicle with sound function according to claim 1, characterized in that: The frame (1) is equipped with a handlebar (4), and the speed controller (5) is installed at the right-hand grip position of the handlebar (4).
3. The electric vehicle with sound function according to claim 2, characterized in that: The handlebars (4) are also equipped with brakes (6).
4. The electric vehicle with sound function according to claim 1, characterized in that: The horn (7) is installed below the seat (3).
5. The electric vehicle with sound function according to claim 1, characterized in that: The control system includes a central control module, a speed controller interface, a drive module, a motor, an audio amplifier module, and a speaker. The speed controller interface is connected to the central control module, the drive module is connected to the central control module, the audio amplifier module is connected to the central control module, and the speaker is connected to the audio amplifier module.
6. The electric vehicle with sound function according to claim 1, characterized in that: The speed controller (5) mentioned above adopts a Hall effect speed control throttle.
7. The electric vehicle with sound function according to claim 5, characterized in that: The motor is a brushless motor, and the drive module includes a first drive module, a second drive module, and a third drive module, which are respectively connected to the motor.
8. The electric vehicle with a sound function according to claim 5, characterized in that: The central control module is also connected to a Bluetooth module, which is connected to the audio amplifier module.
9. The electric vehicle with a sound function according to claim 5, characterized in that: A brake module is connected to the central control module.
10. The electric vehicle with sound function according to claim 5, characterized in that: The central control module is connected to a motor Hall interface, and the motor Hall interface is connected to a motor Hall module.