CN109263545A - A kind of outer alarming method for power of the vehicle of electric car and device - Google Patents
A kind of outer alarming method for power of the vehicle of electric car and device Download PDFInfo
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- CN109263545A CN109263545A CN201810825867.9A CN201810825867A CN109263545A CN 109263545 A CN109263545 A CN 109263545A CN 201810825867 A CN201810825867 A CN 201810825867A CN 109263545 A CN109263545 A CN 109263545A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q5/00—Arrangement or adaptation of acoustic signal devices
- B60Q5/005—Arrangement or adaptation of acoustic signal devices automatically actuated
- B60Q5/008—Arrangement or adaptation of acoustic signal devices automatically actuated for signaling silent vehicles, e.g. for warning that a hybrid or electric vehicle is approaching
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Abstract
Embodiment of the present invention discloses the outer alarming method for power of vehicle and device of a kind of electric car.Method includes: to detect the vehicle parameter of the electric car；The waveform frequency of the audio signal of caution sound outside vehicle is adjusted in response to the vehicle parameter；Play the audio signal of the outer caution sound of the vehicle after the waveform frequency is adjusted.Embodiment of the present invention can remind automobile close by sound, and the waveform frequency of voice prompt is associated with vehicle parameter, improves prompting efficiency.
Description
Technical field
Embodiment of the present invention is related to automobile technical field, in particular to the outer alarming method for power of a kind of vehicle of electric car and dress
It sets.
Background technique
Have in national newest standards " term and definition of automobile and trailer type " (GB/T 3730.1-2001) to automobile
Such as give a definition: by power drive, the vehicle of the non-track carrying with 4 or 4 or more wheels is mainly used for: carrying personnel
And (or) cargo；Draw the vehicle of carrying personnel and (or) cargo；Specific use.Energy shortage, oil crisis and environmental pollution
It grows in intensity, brings tremendous influence to people's lives, be directly related to the sustainable development of national economy and society.The world is each
State is all in active development new energy technology.
Energy shortage, oil crisis and environmental pollution grow in intensity, and bring tremendous influence, direct relation to people's lives
To the sustainable development of national economy and society.Countries in the world are all in active development new energy technology.Electric car is as a kind of
Reduce the new-energy automobile of consumption of petroleum, low pollution, low noise, it is considered to be solve the important way of energy crisis and environmental degradation
Diameter.
Electric car has the characteristics that noise is small and takes action steady.Electric car is in substantially mute in the process of moving
State can not form warning to pedestrian around or vehicle by the engine roar of orthodox car.For example, being lower than in speed
When 30 kilometers/hour (km/h), electric car just almost silencing.How sound is increased to remind pedestrian and cycling
People's automobile is close, is the safety problem that electric vehicle faces.
Summary of the invention
In view of this, the object of the present invention is to provide alarming method for power and devices outside a kind of vehicle of electric car.
The technical solution of embodiment of the present invention is as follows:
A kind of outer alarming method for power of the vehicle of electric car, comprising:
Detect the vehicle parameter of the electric car；
The waveform frequency of the audio signal of caution sound outside vehicle is adjusted in response to the vehicle parameter；
Play the audio signal of the outer caution sound of the vehicle after the waveform frequency is adjusted.
In one embodiment, the audio signal of the outer caution sound of the vehicle has discrete wave spectrum.
In one embodiment, the outer caution sound of the vehicle is the discrete cry of biology.
In one embodiment, the outer caution sound of the vehicle is the discrete cry of insect.
In one embodiment, the outer caution sound of the vehicle is the discrete cry of cricket.
In one embodiment, the vehicle parameter of the detection electric car includes: the detection vehicle parameter
Current value and/or variation tendency；The waveform that the audio signal of caution sound outside vehicle is adjusted in response to the vehicle parameter
Frequency includes: that the adjusting trend of the waveform frequency is determined according to the current value and/or variation tendency of the vehicle parameter.
In one embodiment, this method further comprises:
The broadcasting of the audio signal of caution sound outside the vehicle after the waveform frequency is adjusted is adjusted in response to the vehicle parameter
Volume.
A kind of computer readable storage medium, computer-readable recording medium storage instruction, described instruction by
Reason device makes the processor execute the step in the outer alarming method for power of vehicle of as above described in any item electric cars when executing.
A kind of outer alarming device of the vehicle of electric car, comprising:
Detection module, for detecting the vehicle parameter of the electric car；
Frequency adjustment module, for adjusting the waveform frequency of the audio signal of caution sound outside vehicle in response to the vehicle parameter
Rate；
Playing module, for playing the audio signal of caution sound outside the vehicle after the waveform frequency is adjusted.
In one embodiment, the detection module, for detecting the current value and/or variation of the vehicle parameter
Trend；The frequency adjustment module, for determining the waveform according to the current value and/or variation tendency of the vehicle parameter
The adjusting trend of frequency；Or
It further include volume adjusting module between the playing module and frequency adjustment module；The volume adjusting module,
For adjusting the broadcast sound volume of the audio signal of caution sound outside the vehicle after the waveform frequency is adjusted in response to the vehicle parameter.
It can be seen from the above technical proposal that embodiment of the present invention includes: to detect the vehicle parameter of electric car；Response
The waveform frequency of the audio signal of caution sound outside vehicle is adjusted in vehicle parameter；Play the outer caution sound of the vehicle after waveform frequency is adjusted
Audio signal.It can be seen that embodiment of the present invention can remind automobile close by sound, and the wave of voice prompt
Shape frequency is associated with vehicle parameter, improves prompting efficiency.
Detailed description of the invention
Only illustratively description and explain the present invention for the following drawings, not delimit the scope of the invention.
Fig. 1 is the flow chart of the outer alarming method for power of vehicle of electric car of the invention.
Fig. 2 is the structure chart of the outer alarming device of vehicle of electric car of the invention.
Fig. 3 is the first demonstrative structure figure of the outer alarming device of vehicle of electric car of the invention.
Fig. 4 is the second demonstrative structure figure of the outer alarming device of vehicle of electric car of the invention.
Fig. 5 is the first demonstrative structure figure of electric car of the present invention.
Fig. 6 is the second demonstrative structure figure of electric car of the present invention.
Specific embodiment
In order to which the technical features, objects and effects of invention are more clearly understood, the Detailed description of the invention present invention is now compareed
Specific embodiment, identical label indicates identical part in the various figures.
It is succinct and intuitive in order to what is described, hereafter by describing several representative embodiments come to side of the invention
Case is illustrated.A large amount of details is only used for helping to understand the solution of the present invention in embodiment.However, it will be apparent that of the invention
Technical solution can be not limited to these details when realizing.In order to avoid unnecessarily having obscured the solution of the present invention, Yi Xieshi
It applies mode not described meticulously, but only gives frame.Hereinafter, " comprising " refers to " including but not limited to ", " root
According to ... " refer to " according at least to ..., but be not limited to according only to ... ".Due to the speech habits of Chinese, hereinafter without spy
When not pointing out the quantity of an ingredient, it is meant that the ingredient is either one or more, or can be regarded as at least one.
Before long, electric car clean and environmental protection, the small speciality of noise is well received by the public in driving process.However, with road
The electric car of upper traveling is more and more, and people start to find, the speciality of electric car " peace and quiet " is reducing the same of noise pollution
When, also derive certain security risk.For example, when electric car with the speed of 30km/h when driving, pedestrian is almost difficult to feel
Know the presence of vehicle, and for the pedestrian that those are listened to music with earphone, the difficulty discovered is then bigger.
Embodiment of the present invention proposes alarming method for power outside a kind of vehicle of electric car, convenient for reminding pedestrian and cycling
People's automobile is close.
Fig. 1 is the flow chart of the outer alarming method for power of vehicle of electric car of the invention.
As shown in Figure 1, this method comprises:
Step 101: detecting the vehicle parameter of electric car.
Herein, the vehicle parameter of electric car can be detected respectively based on each sensor independently arranged, it can also be with
From entire car controller (VCU) the unified vehicle parameter for obtaining electric car.
Wherein, the vehicle parameter of electric car may include: current vehicle speed, clutch aperture, accelerator open degree, brake pedal
Accelerator open degree, automotive steering angle, etc..
Step 102: the waveform frequency of the audio signal of caution sound outside vehicle is adjusted in response to vehicle parameter.
Herein, the waveform frequency of the audio signal of caution sound outside vehicle is adjusted based on vehicle parameter.
For example, assert that automobile is in when determining that current vehicle speed is lower than scheduled low speed threshold value (such as 30 (km/h))
Low-speed running state relatively needs to prompt pedestrian around or vehicle at this time, and thus improves the audio letter of the outer caution sound of vehicle
Number waveform frequency.When determining that current vehicle speed is greater than scheduled high speed threshold value (such as 80 (km/h)), automobile has been assert
It is detached from low-speed running state, does not need relatively to prompt pedestrian around or vehicle at this time, and thus reduce the outer caution sound of vehicle
Audio signal waveform frequency.
For another example, when determining that accelerator open degree is greater than scheduled accelerator open degree threshold value, assert that automobile is in and give it the gun
State relatively needs to prompt pedestrian around or vehicle at this time, and improves the waveform frequency of the audio signal of the outer caution sound of vehicle.
When determining that accelerator open degree is less than or equal to scheduled accelerator open degree threshold value, assert that automobile has been detached from running at a low speed shape
State does not need relatively to prompt pedestrian around or vehicle at this time, and reduces the waveform frequency of the audio signal of the outer caution sound of vehicle.
Step 103: playing the audio signal of the outer caution sound of the vehicle after waveform frequency is adjusted.
Herein, the audio signal of the outer caution sound of the vehicle after waveform frequency is adjusted is played, to remind pedestrian and ride voluntarily
People's automobile of vehicle is close.For example, can be using built-in loudspeaker in the car or the loudspeaking arranged on car crust
Device plays the audio signal.
In one embodiment, the audio signal of the outer caution sound of vehicle has discrete wave spectrum.In one embodiment, vehicle
Outer caution sound is the discrete cry of biology.Preferably, the outer caution sound of vehicle is the discrete cry of insect.It is furthermore preferred that being warned outside vehicle
Sound is the discrete cry of cricket.
In one embodiment, detect electric car vehicle parameter include: detect vehicle parameter current value and/
Or variation tendency；The waveform frequency that the audio signal of caution sound outside vehicle is adjusted in response to vehicle parameter includes: according to vehicle parameter
Current value and/or variation tendency determine the adjusting trend of the waveform frequency.
In one embodiment, this method further comprises: adjusting the waveform frequency in response to vehicle parameter and adjusts
The broadcast sound volume of the audio signal of the outer caution sound of vehicle afterwards.
In one embodiment, this method further comprises: when the row for sensing electric car based on detection sensor device
It sails on direction when having passerby, starts the holographic projector being arranged on the vehicle body of electric car；It is adjusted in response to vehicle parameter pre-
The three dimensional image signals first stored；Enabled holographic projector imaging three-dimensional picture signal in a manner of line holographic projections.For example, when being based on
Inductor senses in the driving direction of electric car when having passerby, starts the holography being arranged on the vehicle body of electric car at once
Projector.Then, pre-stored three dimensional image signals are adjusted in response to vehicle parameter, and enabled holographic projector is thrown with holography
Shadow mode imaging three-dimensional picture signal.Wherein, pre-stored three dimensional image signals can be cricket image, character image or peace
Full warning banner.
Citing assert that automobile is in when determining that current vehicle speed is lower than scheduled low speed threshold value (such as 30 (km/h))
Low-speed running state relatively needs to prompt pedestrian around or vehicle at this time, and improve the audio signal of the outer caution sound of vehicle
Waveform frequency.Moreover, starting is arranged at once when being sensed based on detection sensor device has passerby in the driving direction of electric car
Holographic projector on the vehicle body of electric car, and pre-stored three-dimensional figure is amplified with the first multiplying power based on current vehicle speed
As signal, and amplified three dimensional image signals are imaged in enabled holographic projector in a manner of line holographic projections.Preferably, 3-D image
The audio signal of signal and the outer caution sound of vehicle has relevance, for example audio signal plays cricket sound, and three dimensional image signals are shown
Three-dimensional cricket image.
It illustrates again, when determining that current vehicle speed is greater than scheduled high speed threshold value (such as 80 (km/h)), has assert automobile
It is detached from low-speed running state, does not need relatively to prompt pedestrian around or vehicle at this time, reduces the audio of the outer caution sound of vehicle
The waveform frequency of signal.Moreover, starting cloth at once when sensing based on inductor has passerby in the driving direction of electric car
The holographic projector on the vehicle body of electric car is set, and pre-stored three-dimensional is amplified with the second multiplying power based on current vehicle speed
Picture signal, and amplified three dimensional image signals are imaged in enabled holographic projector in a manner of line holographic projections.Wherein, the second multiplying power
Greater than the first multiplying power.
Based on foregoing description, embodiment of the present invention also proposed a kind of outer alarming device of vehicle of electric car.
Fig. 2 is the structure chart of the outer alarming device of vehicle of electric car of the invention.
As shown in Fig. 2, the device includes:
Detection module 201, for detecting the vehicle parameter of the electric car；
Frequency adjustment module 202, for adjusting the waveform of the audio signal of caution sound outside vehicle in response to the vehicle parameter
Frequency；
Playing module 203, for playing the audio signal of caution sound outside the vehicle after the waveform frequency is adjusted.
In one embodiment, detection module 201, for detecting the current value and/or variation of the vehicle parameter
Trend；Frequency adjustment module 202, for determining the waveform according to the current value and/or variation tendency of the vehicle parameter
The adjusting trend of frequency.
It in one embodiment, further include volume adjustment mould between playing module 201 and frequency adjustment module 202
Block；Volume adjusting module, for adjusting the sound of caution sound outside the vehicle after the waveform frequency is adjusted in response to the vehicle parameter
The broadcast sound volume of frequency signal.
In one embodiment, which includes:
Starting module, for starting when being sensed based on detection sensor device has passerby in the driving direction of electric car
The holographic projector being arranged on the vehicle body of electric car；
3-D image adjusts module, for adjusting pre-stored three dimensional image signals in response to vehicle parameter；
Image-forming module, for enabling holographic projector imaging three-dimensional picture signal in a manner of line holographic projections.
For example, starting is arranged in electricity at once when being sensed based on inductor has passerby in the driving direction of electric car
Holographic projector on the vehicle body of electrical automobile.Then, pre-stored three dimensional image signals are adjusted in response to vehicle parameter, and made
It can holographic projector imaging three-dimensional picture signal in a manner of line holographic projections.Wherein, pre-stored three dimensional image signals can be
Cricket image, character image or safety prompt function mark.
Based on foregoing description, embodiment of the present invention also proposed a kind of outer alarming device of vehicle of electric car.Outside the vehicle
Alarming device has simple structure, strong operability and convenient volume adjusting function, consequently facilitating reminding pedestrian and riding voluntarily
People's automobile of vehicle is close.
Fig. 3 is the first demonstrative structure figure of the outer alarming device of vehicle of electric car of the invention.
As shown in figure 3, the outer alarming device 100 of the vehicle of electric car includes:
There is audio processor 11 audio input end 21, audio output 22 and frequency to adjust control terminal 23；
Memory 10 is stored with the sound source signal of the outer caution sound of vehicle of electric car；Memory 10, which has, is connected to audio
The signal output end 20 of the audio input end 21 of processor 11；
Loudspeaker 12, input terminal 24 connect the audio output 22 of audio processor 11；
Processor 13 has the parameter acquisition end 26 for the vehicle parameter for receiving electric car and in response to vehicle parameter
The first control output end 25 of frequency adjusting signals is generated, which connects the frequency tune of audio processor 11
Save control terminal 23.
Memory 10 may be embodied as the storage organization comprising many storage units, and each storage unit can store a word
Section (presses byte addressing).There are a number, i.e. address in the position of each storage unit, generally uses hexadecimal representation.One
The summation that all storage units can store data in memory is known as its memory capacity.Memory 10 specifically may be embodied as with
Machine accesses memory (RAM) or read-only memory (ROM), is preferably implemented as ROM.ROM may include programmable read only memory,
Programmable and erasable read-only memory, Electrical Erasable programmable storage, read-only memory, flash memory, etc..
The sound source signal of caution sound outside vehicle is stored in memory 10, such as with electronic file form with CD, WAVE (*
.WAV), the source of sound letter that the formats such as AIFF, AU, MP3, MIDI, WMA, RealAudio, VQF, OggVorbis, AAC, APE save
Number.
Sound source signal may be embodied as the biology cry with discrete wave spectrum, and preferably cricket is called.
Memory 10 provides sound source signal to the audio input end 21 of audio processor 11 via signal output end 20.Audio
Processor 11 executes audio processing to the sound source signal, wherein adjusting letter according to the received frequency of control terminal 23 is adjusted via frequency
Number adjust audio signal frequency.Wherein, audio processing may include: echo cancellor (AEC), automatic gain (AGC), noise reduction
(NS), mute detection etc. promotes the processing function of sound quality.
The input terminal 24 of loudspeaker 12 connects the audio output 22 of audio processor 11, for playing through audio processor
Audio signal after 11 audio processings.
The generation mechanism of frequency adjusting signals is described below.Processor 13 is via parameter acquisition end 26 from the whole of electric car
Vehicle controller or sensor receive vehicle parameter.Vehicle parameter may include current vehicle speed, brake pedal aperture, accelerator open degree etc.
Deng.The first control output end 25 in processor 13 generates frequency adjusting signals in response to vehicle parameter.
For example, the first control output end 25 in processor 13 exports frequency when speed is lower than 30 kilometers/hour (km/h)
Rate increases signal；When accelerator open degree is greater than predetermined threshold, 25 output frequency of the first control output end in processor 13 increases
Big signal；When brake pedal aperture aperture is greater than predetermined threshold, the first control output end 25 in processor 13 exports frequency
Rate increases signal.Audio processor 11 is based on frequency and increases signal, correspondingly increases the frequency of audio signal.
For another example, the first control output end 25 output when speed is higher than 60 kilometers/hour (km/h), in processor 13
Frequency reduces signal；25 output frequency of the first control output end when accelerator open degree is lower than predetermined threshold, in processor 13
Reduce signal；The first control output end 25 output when brake pedal aperture aperture is lower than predetermined threshold, in processor 13
Frequency reduces signal.Audio processor 11, which is based on frequency, reduces signal, accordingly decreases the frequency of audio signal.
As it can be seen that the outer alarming device of the vehicle of the electric car of embodiment of the present invention, have simple structure, strong operability and
Convenient volume adjusting function, convenient for reminding people's automobile of pedestrian and cycling close.
In one embodiment, the outer alarming device of vehicle further comprises: power amplifier is connected on the audio processing
Between device and the loudspeaker.Preferably, power amplifier further has volume adjustment control terminal；Processor further has
The second control output end of volume adjustment signals is generated in response to the vehicle parameter, which connects the function
The volume adjustment control terminal of rate amplifier.
Specifically, power amplifier can be implemented are as follows: class A power amplifier, B power amplifier or class C power are put
Big device, etc..Moreover, loudspeaker may be embodied as coil-moving speaker, condenser loudspeaker, piezo-electric loudspeaker, electromagnetic type
Loudspeaker, electric ion type loudspeaker or pneumatic type loudspeaker, etc..
Fig. 4 is the second demonstrative structure figure of the outer alarming device of vehicle of electric car of the invention.
As shown in figure 4, the outer alarming device 100 of the vehicle of electric car includes:
There is audio processor 11 audio input end 21, audio output 22 and frequency to adjust control terminal 23；
Memory 10 is stored with the sound source signal of the outer caution sound of vehicle of electric car；Memory 10, which has, is connected to audio
The signal output end 20 of the audio input end 21 of processor 11；
Loudspeaker 12, input terminal 24 connect the audio output 22 of audio processor 11；
Processor 13 has the parameter acquisition end 26 for the vehicle parameter for receiving electric car and in response to vehicle parameter
The first control output end 25 of frequency adjusting signals is generated, which connects the frequency tune of audio processor 11
Save control terminal 23；The outer alarming device 100 of vehicle further comprises:
Power amplifier 14 is connected between audio processor 11 and loudspeaker 12, and power amplifier 14 has volume tune
Save control terminal 29, audio receiving end 27 and audio output 30；
Processor 13 further has the second control output end 28 that volume adjustment signals are generated in response to vehicle parameter, should
The volume adjustment control terminal 29 of second control output end 28 connection power amplifier.
Memory 10 may be embodied as the storage organization comprising many storage units, and each storage unit can store a word
Section (presses byte addressing).There are a number, i.e. address in the position of each storage unit, generally uses hexadecimal representation.One
The summation that all storage units can store data in memory is known as its memory capacity.Memory 10 specifically may be embodied as with
Machine accesses memory (RAM) or read-only memory (ROM), is preferably implemented as ROM.ROM may include programmable read only memory,
Programmable and erasable read-only memory, Electrical Erasable programmable storage, read-only memory, flash memory, etc..
The sound source signal of caution sound outside vehicle is stored in memory 10, such as with electronic file form with CD, WAVE (*
.WAV), the source of sound letter that the formats such as AIFF, AU, MP3, MIDI, WMA, RealAudio, VQF, OggVorbis, AAC, APE save
Number.
Sound source signal may be embodied as the biology cry with discrete wave spectrum, and preferably cricket is called.
Memory 10 provides sound source signal to the audio input end 21 of audio processor 11 via signal output end 20.Audio
Processor 11 executes audio processing to the sound source signal, wherein adjusting letter according to the received frequency of control terminal 23 is adjusted via frequency
Number adjust audio signal frequency.Wherein, audio processing may include: echo cancellor (AEC), automatic gain (AGC), noise reduction
(NS), mute detection etc. promotes the processing function of sound quality.
The generation mechanism of frequency adjusting signals is described below.Processor 13 is via parameter acquisition end 26 from the whole of electric car
Vehicle controller or sensor receive vehicle parameter.Vehicle parameter may include current vehicle speed, brake pedal aperture, accelerator open degree etc.
Deng.The first control output end 25 in processor 13 generates frequency adjusting signals in response to vehicle parameter.
For example, the first control output end 25 in processor 13 exports frequency when speed is lower than 30 kilometers/hour (km/h)
Rate increases signal；When accelerator open degree is greater than predetermined threshold, 25 output frequency of the first control output end in processor 13 increases
Big signal；When brake pedal aperture aperture is greater than predetermined threshold, the first control output end 25 in processor 13 exports frequency
Rate increases signal.Audio processor 11 is based on frequency and increases signal, correspondingly increases the frequency of audio signal.
For another example, the first control output end 25 output when speed is higher than 60 kilometers/hour (km/h), in processor 13
Frequency reduces signal；25 output frequency of the first control output end when accelerator open degree is lower than predetermined threshold, in processor 13
Reduce signal；The first control output end 25 output when brake pedal aperture aperture is lower than predetermined threshold, in processor 13
Frequency reduces signal.Audio processor 11, which is based on frequency, reduces signal, accordingly decreases the frequency of audio signal.
Moreover, the audio signal that the audio output 22 of audio processor 11 exports reaches power amplifier 14；Power is put
Big device 14 executes power amplification operation to the audio signal.Wherein, power amplifier 14 is via volume adjustment control terminal 29 from
The 28 volume of reception adjustment signal of the second control output end of device 13 is managed, power amplifier 14 is based on the volume adjustment signals and adjusts sound
The volume of frequency signal.
The generation mechanism of volume adjustment signals is described below.The second control output end 28 in processor 13, in response to row
Vehicle parameter generates volume adjustment signals.
For example, 28 output volume of the second control output end when pass-by noise is greater than predetermined threshold, in processor 13
Increase signal；When current time is daytime, 28 output volume of the second control output end in processor 13 increases signal.Power
Amplifier 14 is based on volume and increases signal, correspondingly increases the volume of audio signal.
For another example, when pass-by noise is lower than predetermined threshold, the second control output end 28 in processor 13 exports sound
Amount reduces signal；When current time is night, 28 output volume of the second control output end in processor 13 reduces signal.Power
Amplifier 14 is based on volume-reducing signal, accordingly decreases the volume of audio signal.
The input terminal 24 of loudspeaker 12 connects the audio output 30 of power amplifier 11, for playing through successively through audio
The audio signal of the volume adjustment of 11 audio processing of processor and power amplifier 11.
Based on foregoing description, embodiment of the present invention also proposed a kind of electric car.The electric car includes alert outside vehicle
Showing device and entire car controller；The outer alarming device of vehicle includes: audio processor, have audio input end, audio output and
Frequency adjusts control terminal；Memory is stored with the sound source signal of the outer caution sound of vehicle of electric car, and wherein memory has connection
To the signal output end of the audio input end of audio processor；Loudspeaker connects the audio output of audio processor；Processing
Device has the parameter acquisition end for the vehicle parameter for receiving electric car and generates frequency adjusting signals in response to vehicle parameter
The first control output end, first control output end connect audio processor frequency adjust control terminal；Entire car controller, with
The parameter acquisition end connection.
In one embodiment, the outer alarming device of vehicle further comprises: power amplifier is connected on the audio processing
Between device and the loudspeaker.In one embodiment, power amplifier further has volume adjustment control terminal；Processor
Further there is the second control output end that volume adjustment signals are generated in response to the vehicle parameter, second control output end
Connect the volume adjustment control terminal of the power amplifier.
Fig. 5 is the first demonstrative structure figure of electric car of the present invention.It as seen from Figure 5, will be alert outside the vehicle in Fig. 3 or Fig. 4
Showing device 100 is arranged in the forward engine room of electric car, to well prompt pedestrian on the road on direction of travel.Moreover, in vehicle
Body is disposed with holographic projector 300.When being sensed based on detection sensor device has passerby in the driving direction of electric car,
Start the holographic projector 300 being arranged on the vehicle body of electric car；Pre-stored three-dimensional figure is adjusted in response to vehicle parameter
As signal, the imaging three-dimensional picture signal in a manner of line holographic projections of holographic projector 300 is enabled.
Fig. 6 is the second demonstrative structure figure of electric car of the present invention.It as seen from Figure 6, will be alert outside the vehicle in Fig. 3 or Fig. 4
Showing device 100 is arranged in after electric car in forward engine room, to well prompt pedestrian on the road in reverse direction.Moreover, in electricity
The forward engine room top of electrical automobile is disposed with holographic projector 300.When the traveling side for sensing electric car based on detection sensor device
When having passerby upwards, start the holographic projector 300 being arranged on the vehicle body of electric car；It is adjusted in response to vehicle parameter preparatory
The three dimensional image signals of storage enable the imaging three-dimensional picture signal in a manner of line holographic projections of holographic projector 300.
In conclusion the vehicle parameter of embodiment of the present invention detection electric car；It is adjusted outside vehicle in response to vehicle parameter
The waveform frequency of the audio signal of caution sound；Play the audio signal of the outer caution sound of the vehicle after the waveform frequency is adjusted.This hair
Bright embodiment can remind automobile close by sound, and the waveform frequency of voice prompt is related to vehicle parameter
Connection, improves prompting efficiency.
Herein, " schematic " expression " serving as examplea, instances, or illustrations " should not will be described herein as " showing
Any diagram, the embodiment of meaning property " are construed to technical solution that is a kind of preferred or more having advantages.To make simplified form,
Part related to the present invention is only schematically shown in each figure, and does not represent its practical structures as product.Separately
Outside, so that simplified form is easy to understand, with the component of identical structure or function in some figures, it is only symbolically depicted
In one, or only marked one of those.Herein, "one" is not offered as limiting the quantity of relevant portion of the present invention
It is made as " only this ", and "one" situation for not indicating to exclude the quantity " more than one " of relevant portion of the present invention.At this
Wen Zhong, "upper", "lower", "front", "rear", "left", "right", "inner", "outside" etc. are only used for indicating the opposite position between relevant portion
Set relationship, and the absolute position of these non-limiting relevant portions.
The series of detailed descriptions listed above only for feasible embodiment of the invention specifically
Protection scope that is bright, and being not intended to limit the invention, it is all without departing from equivalent embodiments made by technical spirit of the present invention or
Change, such as the combination, segmentation or repetition of feature, should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of outer alarming method for power of vehicle of electric car characterized by comprising
Detect the vehicle parameter of the electric car；
The waveform frequency of the audio signal of caution sound outside vehicle is adjusted in response to the vehicle parameter；
Play the audio signal of the outer caution sound of the vehicle after the waveform frequency is adjusted.
2. the outer alarming method for power of the vehicle of electric car according to claim 1, which is characterized in that the sound of the outer caution sound of the vehicle
Frequency signal has discrete wave spectrum.
3. the outer alarming method for power of the vehicle of electric car according to claim 2, the outer caution sound of the vehicle is that the discrete of biology is named
Sound.
4. the outer alarming method for power of the vehicle of electric car according to claim 3, which is characterized in that the outer caution sound of the vehicle is elder brother
The discrete cry of worm.
5. the outer alarming method for power of the vehicle of electric car according to claim 4, which is characterized in that the outer caution sound of the vehicle is cricket
The discrete cry of cricket.
6. the outer alarming method for power of the vehicle of electric car according to claim 1, which is characterized in that
The vehicle parameter of the detection electric car includes: that the current value for detecting the vehicle parameter and/or variation become
Gesture；
The waveform frequency that the audio signal of caution sound outside vehicle is adjusted in response to the vehicle parameter includes: according to the driving
The current value and/or variation tendency of parameter determine the adjusting trend of the waveform frequency.
7. the outer alarming method for power of the vehicle of electric car according to claim 1, which is characterized in that this method further comprises:
The broadcast sound volume of the audio signal of caution sound outside the vehicle after the waveform frequency is adjusted is adjusted in response to the vehicle parameter.
8. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage instruction, the finger
Enable the vehicle for making the processor execute the electric car as described in any one of claims 1 to 7 when executed by the processor
Step in outer alarming method for power.
9. a kind of outer alarming device of vehicle of electric car characterized by comprising
Detection module, for detecting the vehicle parameter of the electric car；
Frequency adjustment module, for adjusting the waveform frequency of the audio signal of caution sound outside vehicle in response to the vehicle parameter；
Playing module, for playing the audio signal of caution sound outside the vehicle after the waveform frequency is adjusted.
10. the outer alarming device of the vehicle of electric car according to claim 9, which is characterized in that
The detection module, for detecting the current value and/or variation tendency of the vehicle parameter；The frequency adjusts mould
Block determines the adjusting trend of the waveform frequency for the current value and/or variation tendency according to the vehicle parameter；Or
It further include volume adjusting module between the playing module and frequency adjustment module；The volume adjusting module, is used for
The broadcast sound volume of the audio signal of caution sound outside the vehicle after the waveform frequency is adjusted is adjusted in response to the vehicle parameter.
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