CN205871866U - A audio playback system and electric automobile for electric automobile - Google Patents
A audio playback system and electric automobile for electric automobile Download PDFInfo
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- CN205871866U CN205871866U CN201620811185.9U CN201620811185U CN205871866U CN 205871866 U CN205871866 U CN 205871866U CN 201620811185 U CN201620811185 U CN 201620811185U CN 205871866 U CN205871866 U CN 205871866U
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Abstract
This has openly revead an audio playback system and electric automobile for electric automobile, belongs to the electric automobile field. This system includes: communication bus, microprocessor, image acquisition assembly, audio decoder ware, audio power amplifier IC, at least one speaker and be the power of mains power supply, it is continuous with electric automobile's driving computer electrical property that microprocessor passes through communication bus for acquire the driving data that the driving computer was gathered through communication bus, and according to driving digital simulation engine sound frequently, microprocessor links to each other with the image acquisition assembly electrical property for whether the mileage chart of gathering according to image acquisition assembly exists the pedestrian like definite, and engine sound is broadcast frequently to the control loudspeaker when confirming to have the pedestrian, microprocessor with audio decoder ware electrical property links to each other, the audio decoder ware links to each other with the audio power amplifier IC electrical property, audio power amplifier IC links to each other with the speaker electrical property, the power links to each other with microprocessor, image acquisition assembly, audio decoder ware and audio power amplifier IC electrical property respectively.
Description
Technical field
It relates to electric automobile field, particularly to a kind of audio frequency processing system for electric automobile and electronic
Automobile.
Background technology
Along with the raising day by day of cell manufacturing techniques, great effort is put into electronic by increasing automobile production manufacturer
In the middle of the research and development of automobile and production.
Compared with existing fuel-engined vehicle, the energy that electric automobile uses is more environmentally-friendly, it is possible to air is caused by reduction
Pollute.Further, owing to electric automobile uses genemotor to provide power, rather than use fuel engines, therefore running over
Cheng Zhong, electric automobile will not produce engine and thunder, and the noise of generation is less.
Exactly because but the noise of generation is less during electric automobile during traveling, causing pedestrian and other vehicles to be difficult to discover
Cross to electric automobile, thus bring a series of potential safety hazard.
Utility model content
The disclosure provides a kind of audio frequency broadcast system for electric automobile and electric automobile.Described technical scheme is such as
Under:
First aspect according to disclosure embodiment, it is provided that a kind of audio frequency broadcast system for electric automobile, this system
Including: communication bus, microprocessor, image collection assembly, audio decoder, audio frequency power amplifier IC (Integrated Circuit,
Integrated circuit), at least one speaker and be the power supply of system power supply；
Microprocessor is electrical connected by the car running computer of communication bus with electric automobile, for being obtained by communication bus
The travelling data that car running computer gathers, and according to travelling data simulation engine sound audio；
Microprocessor is electrical connected with image collection assembly, true for the road image collected according to image collection assembly
Determine whether to exist pedestrian, and control speaker playback engine sound audio when determining and there is pedestrian；
Microprocessor is electrical connected with audio decoder；
Audio decoder is electrical connected with audio frequency power amplifier IC；
Audio frequency power amplifier IC is electrical connected with speaker；
Power supply is electrical connected with microprocessor, image collection assembly, audio decoder and audio frequency power amplifier IC respectively.
Optionally, this system includes the audio memory storing engine sound audio sample；
Microprocessor is electrical connected with audio memory, for according to the genemotor rotating speed number comprised in travelling data
According to the loudness of adjustment engine sound audio sample, and the engine sound audio sample after audio decoder transmission process.
Optionally, this system also includes power management chip, and power management chip is electrical connected with power supply, power management core
Sheet is electrical connected with microprocessor；
Microprocessor, for when road image instruction exists pedestrian, it is described for controlling power supply by power management chip
Audio decoder and audio frequency power amplifier IC power；
Microprocessor, is additionally operable to, when road image instruction does not exists pedestrian, control power supply by power management chip and stop
Only power for audio decoder and audio frequency power amplifier IC.
Optionally, microprocessor is also electrical connected with audio frequency power amplifier IC；
Microprocessor, for when road image instruction exists pedestrian, obtaining the relative position of pedestrian and electric automobile；Root
According to relative position, control speaker transmission simulated audio signal corresponding to relative position for audio frequency power amplifier IC.
Optionally, power supply is for providing 3.3V voltage for microprocessor under power management chip control；
Power supply is additionally operable under power management chip control provide 3.3V or 5V voltage for audio decoder；
Power supply is additionally operable under power management chip control as audio frequency power amplifier IC offer ± 15V voltage.
Optionally, this system also includes communication bus transceiver；
Microprocessor is connected with communication bus by communication bus transceiver；
Power supply is also electrical connected with communication bus transceiver, for providing 3.3V voltage for communication bus transceiver.
Optionally, communication bus be CAN (Controller Area Network, LAN controller) bus,
PROFIBUS (Process Field Bus, Process FieldbusROFIBUS), LON (Local Operating Network, partial operation
Network) any one in bus or FF (FoudationField, foundation field) bus.
Second aspect according to disclosure embodiment, it is provided that a kind of electric automobile, this electric automobile includes:
Electric automobile body, it is arranged on the audio frequency broadcast system of electric automobile body interior；
Audio frequency broadcast system includes audio frequency broadcast system as described in relation to the first aspect；
Audio frequency broadcast system is electrical connected by the car running computer of communication bus with electric automobile body.
The technical scheme that disclosure embodiment provides can include following beneficial effect:
Gather road image by the image collection assembly in audio frequency broadcast system, and there is passerby in road image instruction
Time, microprocessor according to the travelling data of car running computer collection, engine sound audio frequency is processed, broadcast eventually through speaker
Put the engine sound audio frequency after process；The noise produced during solving electric automobile during traveling is less, causes pedestrian and other cars
Being difficult to perceive electric automobile crosses, thus the problem bringing a series of potential safety hazard；Reach when electric automobile during traveling,
Carry out engine sound simulation according to the transport condition that electric automobile is current, and play the engine sound of simulation by speaker so that OK
People and vehicle can be discovered according to this engine sound has electric automobile close, and can substantially judge electric automobile according to this engine sound
Transport condition, thus make corresponding early warning, it is to avoid potential safety hazard.
It should be appreciated that it is only exemplary that above general description and details hereinafter describe, can not be limited this
Open.
Accompanying drawing explanation
Accompanying drawing herein is merged in description and constitutes the part of this specification, it is shown that meet the enforcement of the disclosure
Example, and in description together for explaining the principle of the disclosure.
Fig. 1 is the system architecture diagram according to the audio frequency broadcast system shown in an exemplary embodiment；
Fig. 2 is the system architecture diagram according to the audio frequency broadcast system shown in another exemplary embodiment；
Fig. 3 is the system architecture diagram according to the audio frequency broadcast system shown in another exemplary embodiment；
Fig. 4 is the system architecture diagram according to the audio frequency broadcast system shown in further example embodiment；
Fig. 5 is the Organization Chart according to the electric automobile shown in an exemplary embodiment.
Detailed description of the invention
Here will illustrate exemplary embodiment in detail, its example represents in the accompanying drawings.Explained below relates to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represents same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the disclosure.On the contrary, they are only with the most appended
The example of the apparatus and method that some aspects that described in detail in claims, the disclosure are consistent.
Fig. 1 is the system architecture diagram according to the audio frequency broadcast system shown in an exemplary embodiment.This audio frequency broadcast system
Include: communication bus 110, microprocessor 120, image collection assembly 130, audio decoder 140, audio frequency power amplifier IC150, extremely
A few speaker 160 and be the power supply 170 of system power supply.
Microprocessor 120 is electrical connected by the car running computer 180 of communication bus 110 with electric automobile.
The built-in car running computer of electric automobile is for monitoring the travelling data in vehicle condition collection vehicle driving process.
Under normal circumstances, the electromotor in electric automobile, ABS (Antilock Brake System, anti-blocking brake system), four-wheel
Drive system, electronic automatic transmission, active suspension system, air bag system are connected by bus with automatically controlled seat system,
And carried out centralized Control by car running computer by bus, accordingly, car running computer can collect such as engine speed, speed change
The travelling datas such as device gear, throttle.In the present embodiment, the microprocessor in audio frequency broadcast system is i.e. by communication bus and this row
Car computer is connected, and obtains, by communication bus, the travelling data that car running computer gathers.
Wherein, any one during this communication bus can be CAN, PROFIBUS bus, LON bus or FF bus
Kind.Describe for convenience, in following embodiment, schematically illustrate as a example by this communication bus is as CAN, not to this
Utility model constitutes restriction.
It addition, microprocessor needs to be connected with this communication bus by communication bus transceiver (not shown), and by
Power supply for this communication make the county prosperous transceiver provide voltage.Such as, when this communication bus is CAN, microprocessor i.e. passes through CAN
Bus transceiver is connected with CAN, and is provided the voltage of 3.3V for this CAN transceiver by power supply, it is ensured that its normal work
Make.
Microprocessor 120 is electrical connected with image collection assembly 130.
Image collection assembly can be the electronic equipment imaging first class.Optionally, image collection assembly 130 is arranged on
The headstock of electric automobile and tailstock position, be respectively used to gather the road image of electric automobile front and rear.
It should be noted that in the embodiment that other are possible, in this image collection assembly can also be electric automobile
The infrared hawkeye night vision system put, pedestrian, vehicle can be identified by this infrared hawkeye night vision system, and calculate with pedestrian,
Distance between vehicle, this is not defined by the present embodiment.
Whether the road image that image collection assembly is collected by microprocessor is analyzed, determine on vehicle running path
There is pedestrian, if there is pedestrian on vehicle running path, microprocessor controls audio frequency broadcast system and plays the engine sound simulated
Audio frequency, plays the effect of warning pedestrian；If there is not pedestrian on vehicle running path, microprocessor then controls audio frequency broadcast system
Stop playback engine sound audio, thus save electricity.
Microprocessor 120 is electrical connected with audio decoder 140.
When needing the engine sound audio frequency playing simulation, microprocessor i.e. by the connection between audio decoder, to
It sends engine sound audio frequency (digital audio and video signals).
Audio decoder 140 is electrical connected with audio frequency power amplifier IC150.
Audio decoder is a kind of electronic device for digital audio and video signals is decoded as simulated audio signal.Audio frequency solution
After code device receives the engine sound audio frequency that microprocessor sends, this engine sound audio frequency is processed as simulated audio signal, and should
Simulated audio signal sends to the audio frequency power amplifier IC being connected.The model of audio decoder is not defined by the present embodiment.
Audio frequency power amplifier IC150 is electrical connected with speaker 160.
In order to enable the audio frequency finally play to be discovered by pedestrian, audio power amplifier circuit receives (engine sound audio frequency) simulation
After audio signal, need simulated audio signal is carried out power big, and the simulated audio signal after amplifying transmits at least one
Individual speaker, is converted electrical signals to acoustical signal by speaker, is finally reached the effect playing simulation engine sound.The present embodiment is also
The model of audio frequency power amplifier IC is not defined.
Power supply 170 respectively with microprocessor 120, image collection assembly 130, audio decoder 140 and audio frequency power amplifier IC150
It is electrical connected.
In order to make audio frequency broadcast system run, the power supply in system needs respectively microprocessor, image collection assembly, sound
Frequently decoder is powered with audio frequency power amplifier IC.The model of power supply is not defined by the present embodiment.
In sum, the audio frequency broadcast system for electric automobile that the present embodiment provides, by audio frequency broadcast system
Image collection assembly gather road image, and road image instruction there is passerby time, by microprocessor according to car running computer
Engine sound audio frequency is processed, eventually through the engine sound audio frequency after speaker playback process by the travelling data gathered；Solve
The noise produced during electric automobile during traveling is less, causes pedestrian and other vehicles to be difficult to perceive electric automobile and crosses,
Thus the problem bringing a series of potential safety hazard；Reach when electric automobile during traveling, according to the traveling shape that electric automobile is current
State carries out engine sound simulation, and is play the engine sound of simulation by speaker so that pedestrian and vehicle can be according to this engine sounds
Discover and have electric automobile close, and can substantially judge the transport condition of electric automobile according to this engine sound, thus make corresponding
Early warning, it is to avoid potential safety hazard.
In the process of moving, the tone of engine sound is relevant with engine speed with loudness for fuel-engined vehicle, and electromotor turns
Speed is the highest, and the travel speed of automobile is the fastest (in the case of gear is identical), and therefore, pedestrian is according to the tone of engine sound and sound
Degree can substantially determine the travel speed of automobile, thus dodges.In order to reach more real engine sound simulation effect,
On the basis of system shown in Figure 1, as in figure 2 it is shown, this system also includes audio memory 190.
In audio memory 190, storage has an engine sound audio sample prerecorded, and this audio memory and micro-process
Device 120 is electrical connected.
In a kind of possible embodiment, this engine sound audio sample is that electromotor is recorded during operating under specifying rotating speed
Audio frequency.Microprocessor, during electric automobile during traveling, obtains the driving number of car running computer Real-time Collection by communication bus
According to, and turn according to the appointment that the genemotor rotary speed data comprised in this travelling data and engine sound audio sample are corresponding
Speed, processes the loudness of engine sound audio sample in audio memory, tone, thus simulates present engine rotating speed
Under engine sound.It should be noted that owing to audio memory only storing shorter engine sound audio frequency (usually 2-5 second),
Therefore, in vehicle travel process, microprocessor needs to continue the engine sound audio sample after audio decoder transmission process,
And the head and the tail of engine sound audio sample are carried out audio frequency linking (audio frequency smoothing processing from beginning to end), thus reach preferable audio frequency and play
Effect.
In the embodiment that other are possible, when the capacity of audio memory is bigger, this audio memory can store
The engine sound audio sample collected under different engine.Accordingly, microprocessor during electric automobile during traveling, root
According to the genemotor rotary speed data in travelling data, audio memory is searched corresponding engine sound audio sample, and should
Engine sound audio sample sends to audio decoder, and this is not defined by the present embodiment.
In the present embodiment, microprocessor according to the real-time engine speed of electric automobile to engine sound audio sample at
Reason so that the final engine sound play meets present engine rotating speed, thus improves the simulation effect of engine sound.
When electric automobile during traveling is at the highway one preferable road of class road conditions, electric automobile can stop playback engine
Sound audio, thus save the power resources of audio frequency broadcast system.Therefore, on the basis of system shown in Figure 1, as it is shown on figure 3, should
System also includes power management chip 171.
Power management chip 171 is electrical connected with power supply 170, power management chip 171 phase electrical with microprocessor 120
Even.
After microprocessor obtains the road image that image collection assembly gathers, when there is pedestrian in the instruction of this road image,
Microprocessor sends the first instruction to this power management chip, and it is audio decoder and sound that instruction power management chip controls power supply
Frequently power discharging IC is powered, it is ensured that the normal process of engine sound audio frequency and broadcasting.
Owing to the running voltage of electronic devices and components different in system is different, therefore, power management chip needs instruction
Power supply provides different running voltage for different electronic devices and components, and concrete, power supply is micro-place under power management chip control
Reason device provides 3.3V voltage；Power supply is additionally operable under power management chip control provide 3.3V or 5V voltage for audio decoder；
Power supply is additionally operable under power management chip control as audio frequency power amplifier IC offer ± 15V voltage.
When the instruction of this road image does not exists pedestrian, in order to save system charge resource, microprocessor is to this power supply pipe
Reason chip sends the second instruction, and instruction power management chip control power supply stops position audio decoder and audio frequency power amplifier IC powers.
In the case of not having voltage input, engine sound audio frequency cannot be decoded by audio decoder, and audio frequency power amplifier IC also cannot be right
Audio signal is amplified, system no longer playback engine sound audio, thus saves power resources.
In the present embodiment, microprocessor determines whether have row on road according to the road image that image collection assembly collects
People, and when having pedestrian on road, control power supply by power management chip and stop as audio decoder and audio frequency works IC
Power supply, has reached to save the effect of system charge.
Under normal circumstances, the speaker in audio frequency broadcast system is arranged on bottom electric automobile, and passes through ground return
Simulation engine sound is propagated to vehicle's surroundings.In a kind of possible embodiment, the speaker in audio frequency broadcast system is all right
It is arranged on all sides of electric automobile, left and right four direction before and after such as vehicle.In vehicle travel process, microprocessor is permissible
The speaker controlling direction, pedestrian place plays simulation engine sound, thus reaches more preferable early warning effect.In system shown in Figure 1
On the basis of, as shown in Figure 4, microprocessor 120 is also electrical connected with audio frequency power amplifier IC150, and audio frequency power amplifier IC150 be arranged on
Electric automobile week, each speaker 160 of side was electrical connected.
When there is pedestrian on road image instruction road, microprocessor further determines that pedestrian is relative with electric automobile
Position, and according to this relative position, send the 3rd instruction to audio frequency power amplifier IC, instruction audio frequency power amplifier IC is corresponding to this relative position
Speaker transmission amplify after engine sound simulated audio signal.
Such as, before and after electric automobile, left and right four direction is provided with speaker, when road image instruction left front has
During pedestrian (normal travel in the case of), microprocessor instruction audio frequency power amplifier IC the most to the left with front speakers transmission engine acoustic mode
Intend audio signal；When there is pedestrian road image instruction right back (in the case of reversing), microprocessor instruction audio frequency power amplifier IC is only
To the right with rear speakers transmission engine acoustic simulation audio signal.
In the present embodiment, the pedestrian that microprocessor indicates according to road image, relative to position, controls audio frequency power amplifier IC to phase
Answer the speaker transmission audio signal of position so that the engine sound of pedestrian's uppick is better, thus reaches preferably to warn
Effect.
Fig. 5 is the Organization Chart according to the electric automobile shown in an exemplary embodiment, and this electric automobile includes electric automobile
Body 510 and be arranged on the audio frequency broadcast system 520 of electric automobile body interior；
Audio frequency broadcast system 520 includes the audio frequency broadcast system as shown in each embodiment above-mentioned；
Audio frequency broadcast system 520 is electrical connected by the car running computer 530 of communication bus with electric automobile body.
Those skilled in the art, after considering description and putting into practice utility model disclosed herein, will readily occur to the disclosure
Other embodiment.The application is intended to any modification, purposes or the adaptations of the disclosure, these modification, use
Way or adaptations are followed the general principle of the disclosure and include undocumented in the art known of the disclosure
General knowledge or conventional techniques means.Description and embodiments is considered only as exemplary, the true scope of the disclosure and spirit by under
The claim in face is pointed out.
It should be appreciated that the disclosure is not limited to precision architecture described above and illustrated in the accompanying drawings, and
And various modifications and changes can carried out without departing from the scope.The scope of the present disclosure is only limited by appended claim.
Claims (8)
1. the audio frequency broadcast system for electric automobile, it is characterised in that described system includes: communication bus, micro-process
Device, image collection assembly, audio decoder, audio frequency power amplifier IC, at least one speaker and be described system supply
The power supply of electricity；
Described microprocessor is electrical connected by the car running computer of described communication bus with described electric automobile, for by described
Communication bus obtains the travelling data that described car running computer gathers, and according to described travelling data simulation engine sound audio；
Described microprocessor is electrical connected with described image collection assembly, for the road collected according to described image collection assembly
Road image determines whether there is pedestrian, and controls the described speaker described engine sound audio frequency of broadcasting when determining and there is pedestrian；
Described microprocessor is electrical connected with described audio decoder；
Described audio decoder is electrical connected with described audio frequency power amplifier IC；
Described audio frequency power amplifier IC is electrical connected with described speaker；
Described power supply respectively with described microprocessor, described image collection assembly, described audio decoder and described audio frequency power amplifier
IC is electrical connected.
System the most according to claim 1, it is characterised in that described system includes the sound storing engine sound audio sample
Frequently memorizer；
Described microprocessor is electrical connected with described audio memory, for according to the motor comprised in described travelling data
Machine rotary speed data adjusts the loudness of described engine sound audio sample, and the described engine after described audio decoder transmission process
Sound audio sample.
System the most according to claim 1 and 2, it is characterised in that described system also includes power management chip, described electricity
Source control chip is electrical connected with described power supply, and described power management chip is electrical connected with described microprocessor；
Described microprocessor, for when the instruction of described road image exists pedestrian, controlling institute by described power management chip
State power supply and be described audio decoder and described audio frequency power amplifier IC powers；
Described microprocessor, is additionally operable to when the instruction of described road image does not exists pedestrian, by described power management chip control
Make described power supply to stop powering for described audio decoder and described audio frequency power amplifier IC.
System the most according to claim 1 and 2, it is characterised in that described microprocessor is also electric with described audio frequency power amplifier IC
Property be connected；
Described microprocessor, for when the instruction of described road image exists pedestrian, obtaining the phase of pedestrian and described electric automobile
To position；According to described relative position, control speaker transmission corresponding to described relative position for described audio frequency power amplifier IC described
Simulated audio signal.
System the most according to claim 3, it is characterised in that described power supply is under controlling at described power management chip
3.3V voltage is provided for described microprocessor；
Described power supply is additionally operable to provide 3.3V or 5V voltage for described audio decoder under described power management chip controls；
Described power supply is additionally operable under described power management chip controls as described audio frequency power amplifier IC offer ± 15V voltage.
System the most according to claim 1 and 2, it is characterised in that described system also includes communication bus transceiver；
Described microprocessor is connected with described communication bus by described communication bus transceiver；
Described power supply is also electrical connected with described communication bus transceiver, for providing 3.3V electricity for described communication bus transceiver
Pressure.
7. according to the arbitrary described system of claim 1 or 2, it is characterised in that described communication bus is LAN controller
Any one in CAN, Process FieldbusROFIBUS PROFIBUS, Local Operating Net Works LON bus or foundation field FF bus
Kind.
8. an electric automobile, it is characterised in that described electric automobile includes:
Electric automobile body, it is arranged on the audio frequency broadcast system of described electric automobile body interior；
Described audio frequency broadcast system includes the audio frequency broadcast system as described in claim 1 to 7 is arbitrary；
Described audio frequency broadcast system is electrical connected by the car running computer of communication bus with described electric automobile body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620811185.9U CN205871866U (en) | 2016-07-28 | 2016-07-28 | A audio playback system and electric automobile for electric automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620811185.9U CN205871866U (en) | 2016-07-28 | 2016-07-28 | A audio playback system and electric automobile for electric automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108109504A (en) * | 2017-12-26 | 2018-06-01 | 奇瑞商用车（安徽）有限公司 | A kind of sound simulator for electric vehicle |
| CN109435837A (en) * | 2018-12-20 | 2019-03-08 | 云南玉溪汇龙科技有限公司 | A kind of engine of electric vehicle acoustic simulation synthesizer and method |
-
2016
- 2016-07-28 CN CN201620811185.9U patent/CN205871866U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108109504A (en) * | 2017-12-26 | 2018-06-01 | 奇瑞商用车（安徽）有限公司 | A kind of sound simulator for electric vehicle |
| CN109435837A (en) * | 2018-12-20 | 2019-03-08 | 云南玉溪汇龙科技有限公司 | A kind of engine of electric vehicle acoustic simulation synthesizer and method |
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Effective date of registration: 20170706 Address after: 510000 B1, building, No. 16, rhyme Road, Guangzhou, Guangdong, China 13F Patentee after: Guangzhou KuGou Networks Co., Ltd. Address before: 213161 Jiangsu Province, Changzhou city Wujin district north of the city and Zhongzhi 328 floor Patentee before: CHANGZHOU HEARING WORKSHOP INTELLIGENT TECHNOLOGY CO., LTD. |
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Address after: 510660 Guangzhou City, Guangzhou, Guangdong, Whampoa Avenue, No. 315, self - made 1-17 Patentee after: Guangzhou KuGou Networks Co., Ltd. Address before: 510000 B1, building, No. 16, rhyme Road, Guangzhou, Guangdong, China 13F Patentee before: Guangzhou KuGou Networks Co., Ltd. |