CN216684270U

CN216684270U - Automobile prompt tone system

Info

Publication number: CN216684270U
Application number: CN202123087596.8U
Authority: CN
Inventors: 唐王锋; 黄�俊; 张恒杰
Original assignee: Huachen Xinri New Energy Automobile Co ltd
Current assignee: Huachen Xinri New Energy Automobile Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-06-07
Anticipated expiration: 2031-12-08

Abstract

The utility model discloses an automobile warning sound system, which comprises a microprocessor, a power supply, a CAN _ H bus, a CAN _ L bus and a loudspeaker, wherein an electric horn signal is connected with the microprocessor through a hard wire or the CAN bus; when the automobile is flamed out and parked or is not flamed out and parked, when an electric horn signal sent by a hard wire or a CAN bus is received, the automobile prompt sound system sounds to provide an electric horn function; in the running process of the vehicle, the automobile warning sound system gives out electric horn sound preferentially according to the received electric horn signal. The utility model can realize the centralized control of the automobile prompt tone and the electric horn sound, has the highest priority of the electric horn sound, reduces the cost through the integrated design and has flexible control.

Description

Automobile prompt tone system

Technical Field

The utility model belongs to the technical field of automobiles, and particularly relates to a new energy automobile prompt tone system.

Background

An automobile warning sound System (AVAS) is a System for sending a warning sound to effectively transmit information to other road users when the noise value generated by the driving of an automobile is lower than a certain value. The common AVAS only designs a system which can send out a prompt sound to effectively transmit information to other road users, and the existing AVAS only designs a system which can send out a prompt sound to effectively transmit information to other road vehicles, and has the main defects of single function and high cost of the whole vehicle.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model connects the function of the electric horn into the existing automobile prompting sound system. The utility model discloses an automobile prompt sound system, which comprises a microprocessor, a power supply, a CAN _ H bus, a CAN _ L bus and an electric horn function, wherein an input signal of the electric horn function is connected with the microprocessor through a hard wire or the CAN _ H and CAN _ L buses;

when the automobile is flamed out and parked or is not flamed out and parked, when an electric horn signal sent by the hard wire or the CAN _ H and CAN _ L buses is received, the automobile prompt tone system sounds to provide an electric horn function; in the running process of the vehicle, the automobile prompt tone system gives out electric horn sound preferentially according to the received electric horn signal.

Furthermore, the device also comprises a CAN shielded wire.

Furthermore, the device also comprises a loudspeaker, and an audio amplifier is connected between the microprocessor and the loudspeaker.

Furthermore, the power supply comprises one power supply or two power supplies; the power supply is an internal power supply converted by an external power supply, the internal power supply supplies power for the microprocessor and the CAN bus driving circuit, the two power supplies comprise the internal power supply and an ACC or IG or START power supply, and the ACC or IG or START power supply supplies power or provides working signals for the microprocessor.

Further, the signal sent by the electric horn function through the hard wire is a switching signal or an analog signal sent by a vehicle control device.

Further, the switching signal, the analog signal or the CAN signal is a high level signal or a low level signal.

Further, still include car prompt tone system pause switch, car prompt tone system pause switch installs on vehicle interior trim or integrated on vehicle control panel, car prompt tone system pause switch is effective period, only pauses the warning sound that traveles of car prompt tone system, the sound production of electric horn function does not receive the control of car prompt tone system pause switch.

Further, the loudspeaker is basin-shaped.

The utility model has the following beneficial effects:

the utility model can realize the centralized control of the automobile prompt tone and the electric horn sound, has the highest priority of the electric horn sound, reduces the cost through the integrated design and has flexible control.

Drawings

FIG. 1 is a structural diagram of an electric horn signal of the present invention connected to a car warning sound system through a hard wire;

fig. 2 is a structural diagram of an electric horn signal of the utility model connected with an automobile prompting sound system through a CAN bus.

Detailed Description

The utility model is further described with reference to the accompanying drawings, but the utility model is not limited in any way, and any alterations or substitutions based on the teaching of the utility model are within the scope of the utility model.

An automobile warning sound system comprises a microprocessor, a power supply, a CAN _ H bus, a CAN _ L bus and an electric horn function, wherein an input signal of the electric horn function is connected with the microprocessor through a hard wire or the CAN _ H bus and the CAN _ L bus.

The CAN _ H bus is a high-order data line, and the CAN _ L is a low-order data line which is twisted together in a twisted mode, so that the CAN bus is insensitive to electromagnetic interference.

The CAN _ H bus and the CAN _ L bus are connected to CAN bus pins of the microprocessor through a CAN SBC interface driving circuit. The CAN SBC interface driving circuit realizes the conversion of CAN bus signals. The CAN SBC interface driving circuit is the prior art and is not described in detail.

The microprocessor chip collects and processes signals of the modules and controls the loudspeaker to sound. Illustratively, the microprocessor chip of the present embodiment is an ES32F3663LQ 32-bit single chip microcomputer.

In some embodiments, the car warning sound system includes a CAN shield line that is coupled to a CAN bus pin of the microprocessor through a CAN SBC interface driver circuit. And the CAN shielded wire is grounded and used for inhibiting common-mode interference. The CAN shielded wire grounding method comprises the steps of grounding the single point of the shielding layer, grounding the shell of the node signal ground resistance-capacitance self or shielding the shielding layer in a segmented mode.

And an audio amplifier is connected between the microprocessor and the loudspeaker and used for adjusting the sound intensity of the loudspeaker. Audio amplifiers are prior art and, for example, the present embodiment uses NCP2890 as an audio amplifier.

The power supply supplies voltage to the automobile prompting sound system and comprises one power supply or two power supplies; one path of power supply is an internal power supply converted by an external power supply, and the two paths of power supplies comprise the internal power supply and an ACC (automatic control center) or IG (IG) or START (START) power supply. The ACC power supply is a power supply which is turned on when a vehicle key is turned to an ACC gear, and supplies power to parts of devices such as a car audio. The IG power supply refers to a power supply that is turned ON by the key to the ON range, and the START power supply is a power supply that is turned ON by the key to the engine starting range. The internal power supply supplies power for the microprocessor and the CAN bus driving circuit, and the ACC or IG or START power supply supplies power for the microprocessor or provides working signals.

In some embodiments, the car warning sound system further comprises a car warning sound system pause switch, the car warning sound system pause switch is mounted on a vehicle interior trim part or integrated on other components such as a car control panel, only the running warning sound of the car warning sound system is paused during the valid period of the car warning sound system pause switch, and the sounding of the electric horn function is not controlled by the car warning sound system pause switch.

The electric horn is a sound signal device of the automobile, and in the driving process of the automobile, a driver sends out necessary sound signals according to needs and regulations to warn pedestrians and attract the attention of other vehicles, so that the traffic safety is ensured, and meanwhile, the electric horn is also used for urging and transmitting signals. The electrical horn in this embodiment is preferably a bowl speaker.

The signal sent by the electric horn function through the hard wire is a switching signal or an analog signal sent by a vehicle control device, and the switching signal or the analog signal is a high-level signal or a low-level signal and CAN also be a CAN signal.

In this embodiment, the hard wire connecting the speaker and the audio amplifier is a red-black twin-core wire or a red-black-white three-core wire, and the hard wire between the electric horn function and the microprocessor is a single-core wire.

The working principle of the utility model is as follows:

when the automobile is flamed out and parked or is not flamed out and parked, when an electric horn signal sent by a hard line or a CAN bus is received, the automobile prompting sound system sounds to provide an electric horn function; in the running process of the vehicle, the automobile prompt tone system gives out electric horn sound preferentially according to the received electric horn signal.

The utility model has the following beneficial effects:

The word "preferred" is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as "preferred" is not necessarily to be construed as advantageous over other aspects or designs. Rather, use of the word "preferred" is intended to present concepts in a concrete fashion. The term "or" as used in this application is intended to mean an inclusive "or" rather than an exclusive "or". That is, unless specified otherwise or clear from context, "X employs A or B" is intended to include either of the permutations as a matter of course. That is, if X employs A; b is used as X; or X employs both A and B, then "X employs A or B" is satisfied in any of the foregoing examples.

Also, although the disclosure has been shown and described with respect to one or an implementation, equivalent alterations and modifications will occur to others skilled in the art based upon a reading and understanding of this specification and the annexed drawings. The present disclosure includes all such modifications and alterations, and is limited only by the scope of the appended claims. In particular regard to the various functions performed by the above described components (e.g., elements, etc.), the terms used to describe such components are intended to correspond, unless otherwise indicated, to any component which performs the specified function of the described component (e.g., that is functionally equivalent), even though not structurally equivalent to the disclosed structure which performs the function in the herein illustrated exemplary implementations of the disclosure. In addition, while a particular feature of the disclosure may have been disclosed with respect to only one of several implementations, such feature may be combined with one or other features of the other implementations as may be desired and advantageous for a given or particular application. Furthermore, to the extent that the terms "includes," has, "" contains, "or variants thereof are used in either the detailed description or the claims, such terms are intended to be inclusive in a manner similar to the term" comprising.

Each functional unit in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or a plurality of or more than one unit are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium. The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Each apparatus or system described above may execute the storage method in the corresponding method embodiment.

In summary, the above-mentioned embodiment is an implementation manner of the present invention, but the implementation manner of the present invention is not limited by the above-mentioned embodiment, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be regarded as equivalent replacements within the protection scope of the present invention.

Claims

1. An automobile warning tone system comprises a microprocessor, a power supply, a CAN _ H bus and a CAN _ L bus, and is characterized by also comprising an electric horn function, wherein an input signal of the electric horn function is connected with the microprocessor through a hard wire or the CAN _ H and CAN _ L buses;

2. The automobile warning sound system of claim 1, further comprising a CAN shield line.

3. The car warning tone system of claim 1, further comprising a speaker, and an audio amplifier is connected between the microprocessor and the speaker.

4. The automobile prompting sound system of claim 1, wherein the power supply comprises one power supply or two power supplies; the power supply is an internal power supply converted by an external power supply, the internal power supply supplies power for the microprocessor and the CAN bus driving circuit, the two power supplies comprise the internal power supply and an ACC or IG or START power supply, and the ACC or IG or START power supply supplies power or provides working signals for the microprocessor.

5. The automotive cue sound system of claim 1 wherein the signal sent by the electrical horn function through the hard wire is a switching signal or an analog signal sent by a vehicle control device.

6. The car warning sound system according to claim 5, wherein the switching signal, the analog signal or the CAN signal is a high level signal or a low level signal.

7. The automobile warning sound system according to claim 1, further comprising an automobile warning sound system pause switch, wherein the automobile warning sound system pause switch is mounted on an interior trim part of the automobile or integrated on a control panel of the automobile, only the running warning sound of the automobile warning sound system is paused during the effective period of the automobile warning sound system pause switch, and the sounding of the electric horn function is not controlled by the automobile warning sound system pause switch.

8. The automotive cue sound system of claim 3 wherein the speaker is basin shaped.