CN209225055U - Pure electric automobile and plug-in hybrid-power automobile run at a low speed prompt mixer - Google Patents
Pure electric automobile and plug-in hybrid-power automobile run at a low speed prompt mixer Download PDFInfo
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- CN209225055U CN209225055U CN201821217153.1U CN201821217153U CN209225055U CN 209225055 U CN209225055 U CN 209225055U CN 201821217153 U CN201821217153 U CN 201821217153U CN 209225055 U CN209225055 U CN 209225055U
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Abstract
Pure electric automobile and plug-in hybrid-power automobile run at a low speed prompt mixer, including DC-DC power module, one-chip computer module, CAN transceiver module, noise detection module, data memory module, audio power amplification module, loudspeaker.Utilize the utility model, when speed is lower than 20km/h, one-chip computer module exports the prompt sound signal of corresponding frequencies and amplitude according to current vehicle speed value and environment nowadays noise figure, audio signal is amplified by audio power amplification module, the prompt tone of simulation traditional combustion engine car engine operating noise is issued finally by loudspeaker, and the automatic frequency and sound pressure level for changing issued prompt tone can be changed according to speed, and change the sound pressure level of issued prompt tone automatically according to environmental noise, to reach best prompt effect.
Description
Technical field
The utility model relates to pure electric automobiles and plug-in hybrid-power automobile security technology area, and in particular to a kind of
Pure electric automobile and plug-in hybrid-power automobile run at a low speed prompt mixer.
Background technique
In the operation of vehicle low speed, pure electric automobile, plug-in hybrid-power automobile are more compared to conventional internal combustion rolling stock
For peace and quiet.Pure electric automobile, plug-in hybrid-power automobile this feature bringing the same of driver and conductor's peace and quiet riding experience
When but also therefore, it is difficult to effectively be reminded vehicle outer periphery personnel, so that hidden danger is brought to traffic safety, especially in vehicle
Starting or speed per hour be lower than 20km/h when, this problem more highlights.
In the GB7258-2017 " motor vehicle safe and technical specification " formally implemented from January 1st, 2018, the
12.13.2 item provides: pure electric automobile, plug-in hybrid-power automobile, should be able in vehicle start and when speed is lower than 20km/h
The indicative sound appropriate is issued to personnel outside vehicle.
It discloses a kind of electric car December 26 2017 CN206807740U month and runs at a low speed prompt tone controller,
Including automobile storage battery and control unit；Described control unit includes DC-DC voltage conversion chip, CAN chip, single-chip microcontroller, language
Say chip, power amplifier chip and loudspeaker；The voltage input end of DC-DC voltage conversion chip connects automobile storage battery；CAN chip
One end is electrically connected the CAN bus module of entire car controller V-ECU, and the voltage that the other end is electrically connected DC-DC voltage conversion chip is defeated
Outlet；Single-chip microcontroller one end is electrically connected the voltage output end of DC-DC voltage conversion chip, and the other end is electrically connected CAN chip；Language core
Piece one end is electrically connected single-chip microcontroller, and the other end is electrically connected power amplifier chip；Power amplifier chip one end is electrically connected single-chip microcontroller, another
End is connect with loudspeaker.Have a disadvantage in that the prompt voice frequency of sending is only determined by speed with sound pressure level, it is lesser in external noise
When environment (such as in night, cell) is run at a low speed, prompt tone is relatively excessive to cause noise pollution to environment；And in outside
When the biggish environment of environmental noise is run at a low speed, prompt tone is relatively too small possibly can not effectively to be mentioned vehicle outer periphery personnel
It wakes up.
Utility model content
Technical problem to be solved in the utility model is, to solve the above-mentioned problems and meets GB7258-2017
The 12.13.2 articles of " motor vehicle safe and technical specification " regulation and design, when pure electric automobile, plug-in hybrid-power automobile
In vehicle start and when speed is lower than 20km/h, the present apparatus can pass through loudspeaker and issue simulation traditional combustion engine car engine work
The prompt tone of noise, and can change the automatic frequency and sound pressure level for changing issued prompt tone according to speed, allows vehicle people from outer periphery
The speed variation of the easily perceivable vehicle of member；And the sound pressure level of issued prompt tone can be changed automatically according to environmental noise, to reach
Best prompt effect.
The technical scheme adopted by the utility model to solve the technical problem is as follows: pure electric automobile and plug-in hybrid
Automobile runs at a low speed prompt mixer, including DC-DC power module, one-chip computer module, CAN transceiver module, noise detection module,
Data memory module, audio power amplification module, loudspeaker；
The DC-DC power module input terminal is connect with vehicle power supply, output end and one-chip computer module, CAN transceiver module,
Noise detection module and data memory module connection, and be these module for power supply；
The CAN transceiver module connects vehicle CAN bus, and connect with one-chip computer module, obtains vehicle from vehicle CAN bus
Fast signal, the speed signal that will acquire are supplied to one-chip computer module；
The noise detection module is connect with one-chip computer module, and the noise detection module can obtain outside vehicle environment and make an uproar
Sound value, and the external environmental noise value that will acquire is supplied to one-chip computer module；
The data memory module is connect with one-chip computer module, and the data memory module is used to store prompt tone data,
The one-chip computer module can read the prompt tone data of storage from data memory module；
The one-chip computer module, it is defeated according to current vehicle speed value and environment nowadays noise figure as speed≤20km/h
The prompt sound signal of corresponding frequencies and amplitude out；
The audio power amplification module power input is connect with vehicle power supply, and audio input end and one-chip computer module connect
It connects, the audio signal of one-chip computer module output is amplified, audio output is connect with loudspeaker；
The loudspeaker is connect with audio power amplification module, issues prompt tone.
Further, the one-chip computer module can change the automatic frequency and width for changing output prompt sound signal according to speed
Value；The automatic amplitude for changing output prompt sound signal can also be changed according to external environmental noise value.
Further, as speed > 20km/h, one-chip computer module no longer exports prompt sound signal, while to Audio power amplifier
Module exports standby signal, and audio power amplification module enters standby mode.
Further, the prompt tone of the capable of emitting simulation traditional combustion engine car engine operating noise of described device.
Further, there is 8-26V wide power input range, compatible electrical system supply voltage is the vehicle of 12V or 24V
?.
The utility model has the following beneficial effects:
1, the fully automated operation of the present apparatus after being powered not will increase without additionally carrying out any manual operation to the present apparatus
Driver workload.
2, the prompt sound effect fruit that the present apparatus issues is similar to traditional combustion engine automobile engine operating noise, and sound pressure level is suitable
Preferably, vehicle outer periphery personnel are easy to receive understanding, easily perceivable close to vehicle, can effectively reduce because of vehicle operation noise and traveling
Noise is too low can not to carry out traffic accident caused by effectively reminding to vehicle outer periphery personnel.
3, the present apparatus can change automatically the sound pressure level of issued prompt tone according to environmental noise, to reach best prompt effect
Fruit.When the lesser environment of external noise (such as in night, cell) is run at a low speed, the present apparatus can suitably reduce prompt tone acoustic pressure
Value, is designed in this way, and can guarantee to cause environment excessive noise dirty while effectively remind vehicle outer periphery personnel
Dye；When the biggish environment of ambient external noise is run at a low speed, the present apparatus can properly increase prompt tone sound pressure level, so set
Meter, it is ensured that prompt tone can clearly debate, and can effectively be reminded vehicle outer periphery personnel.
4, with 90% or more high efficiency, generate heat it is small, be not necessarily to extra heat dissipation device；It, can spirit with standby/enable port
Control working condition living, standby mode can be entered when not needing to issue prompt tone, and energy saving reduces fever simultaneously.
Detailed description of the invention
Fig. 1 is the schematic diagram that pure electric automobile and plug-in hybrid-power automobile run at a low speed prompt mixer；
In figure: 1, pure electric automobile and plug-in hybrid-power automobile run at a low speed prompt mixer, 2, DC-DC power source mould
Block, 3, one-chip computer module, 4, CAN transceiver module, 5, noise detection module, 6, data memory module, 7, Audio power amplifier mould
Block, 8, loudspeaker.
Specific embodiment
The following is a further explanation of the present invention with reference to the accompanying drawings and embodiments.
Embodiment
Referring to Fig.1, a kind of pure electric automobile and plug-in hybrid-power automobile run at a low speed prompt mixer 1, including DC-
DC power module 2, one-chip computer module 3, CAN transceiver module 4, noise detection module 5, data memory module 6, Audio power amplifier
Module 7, loudspeaker 8；
2 input terminal of DC-DC power module is connect with vehicle power supply, and output end and one-chip computer module 3, CAN receive and dispatch mould
Block 4, noise detection module 5 and data memory module 6 connect, and are these module for power supply；
The CAN transceiver module 4 connects vehicle CAN bus, and connect with one-chip computer module 3, obtains from vehicle CAN bus
Speed signal, the speed signal that will acquire are supplied to one-chip computer module 3；
The noise detection module 5 is connect with one-chip computer module 3, and the noise detection module 5 can obtain outside vehicle ring
Border noise figure, and the external environmental noise value that will acquire is supplied to one-chip computer module 3；
The data memory module 6 is connect with one-chip computer module 3, and the data memory module 6 is for storing prompt tone number
According to the one-chip computer module 3 can read the prompt tone data of storage from data memory module 6；
The one-chip computer module 3, when speed is lower than 20km/h, according to current vehicle speed value and environment nowadays noise figure
Export the prompt sound signal of corresponding frequencies and amplitude；
7 power input of audio power amplification module is connect with vehicle power supply, audio input end and control terminal and list
Piece machine module 3 connects, and the audio signal exported to one-chip computer module 3 amplifies, and audio output is connect with loudspeaker 8；
The loudspeaker 8 is connect with audio power amplification module 7, issues prompt tone.
The one-chip computer module can change the automatic frequency and amplitude for changing output prompt sound signal according to speed, can also root
Change the automatic amplitude for changing output prompt sound signal according to external environmental noise value.
As speed > 20km/h, one-chip computer module no longer exports prompt sound signal, while defeated to audio power amplification module
Standby signal out, audio power amplification module enter standby mode.
Specific work process are as follows:
After vehicle launch, audio power amplification module 7 obtains power supply and enters standby preparation state, DC-DC power module 2
It starts to work, provides power supply for one-chip computer module 3, CAN transceiver module 4, noise detection module 5 and data memory module 6；
CAN transceiver module 4 obtains CAN signal message from vehicle CAN bus, therefrom parses current vehicle speed signal and is supplied to single-chip microcontroller
Module 3；Noise detection module 5 detects environment nowadays noise figure and is supplied to one-chip computer module 3；One-chip computer module 3 is to obtaining
The current vehicle speed signal and environment nowadays noise figure obtained is analyzed and determined: if speed≤20km/h, basis works as front truck
The square-wave signal of speed value and environment nowadays noise figure output certain frequency and duty ratio, puts audio power after filtering
Big module 7 exports the prompt sound signal of corresponding frequencies and amplitude, while exporting enable signal, sound to audio power amplification module 7
Frequency power amplifier module 7 obtains enable signal and starts to work, and amplifies to the prompt sound signal of acquisition, and exports to loudspeaker
8, loudspeaker 8 issues the prompt tone of simulation traditional combustion engine car engine operating noise, and to vehicle outer periphery, personnel are reminded；It is single
Piece machine module 3 can change the automatic frequency and amplitude for changing output prompt sound signal according to speed, can also be made an uproar according to external environment
The automatic amplitude for changing output prompt sound signal of sound value variation；As speed > 20km/h, vehicle motor itself, engine operation are made an uproar
Sound and road noise can play suggesting effect, not need prompt mixer sounding, and one-chip computer module 3 no longer exports prompt message
Number, while standby signal is exported to audio power amplification module 7, audio power amplification module 7 enters standby mode.
The foregoing is merely the preferable implementation example of the utility model, the other implementations being not intended to limit the utility model
Form, any modification, equivalent replacement and remodeling etc., should be included in this made by all technical principles based on the utility model
In the protection scope of utility model patent.
Claims (8)
1. pure electric automobile and plug-in hybrid-power automobile run at a low speed prompt mixer, it is characterised in that: including DC-DC electricity
Source module, one-chip computer module, CAN transceiver module, noise detection module, data memory module, audio power amplification module, loudspeaking
Device；
The DC-DC power module input terminal is connect with vehicle power supply, output end and one-chip computer module, CAN transceiver module, noise
Detection module and data memory module connection, and be these module for power supply；
The CAN transceiver module connects vehicle CAN bus, and connect with one-chip computer module, obtains speed letter from vehicle CAN bus
Number, the speed signal that will acquire is supplied to one-chip computer module；
The noise detection module is connect with one-chip computer module, and the noise detection module can obtain outside vehicle ambient noise
Value, and the external environmental noise value that will acquire is supplied to one-chip computer module；
The data memory module is connect with one-chip computer module, and the data memory module is described for storing prompt tone data
One-chip computer module can read the prompt tone data of storage from data memory module；
The one-chip computer module, as speed≤20km/h, according to current vehicle speed value and environment nowadays noise figure output phase
Answer the prompt sound signal of frequency and amplitude；
The audio power amplification module power input is connect with vehicle power supply, audio input end and control terminal and single-chip microcontroller mould
Block connection amplifies the audio signal of one-chip computer module output, and audio output is connect with loudspeaker；
The loudspeaker is connect with audio power amplification module, issues prompt tone.
2. pure electric automobile according to claim 1 and plug-in hybrid-power automobile run at a low speed prompt mixer,
Be characterized in that: the one-chip computer module can change the automatic frequency and amplitude for changing output prompt sound signal according to speed.
3. pure electric automobile according to claim 2 and plug-in hybrid-power automobile run at a low speed prompt mixer,
Be characterized in that: the one-chip computer module can also change the automatic width for changing output prompt sound signal according to external environmental noise value
Value.
4. pure electric automobile according to claim 1 or 2 or 3 and plug-in hybrid-power automobile run at a low speed prompt tone dress
It sets, it is characterised in that: as speed > 20km/h, one-chip computer module no longer exports prompt sound signal, while to Audio power amplifier
Module exports standby signal, and audio power amplification module enters standby mode.
5. pure electric automobile according to claim 1 or 2 or 3 and plug-in hybrid-power automobile run at a low speed prompt tone dress
It sets, it is characterised in that: described device can issue the prompt tone of simulation traditional combustion engine car engine operating noise.
6. pure electric automobile according to claim 4 and plug-in hybrid-power automobile run at a low speed prompt mixer,
Be characterized in that: described device can issue the prompt tone of simulation traditional combustion engine car engine operating noise.
7. running at a low speed prompt tone dress according to pure electric automobile described in claims 1 or 2 or 3 and plug-in hybrid-power automobile
It sets, it is characterised in that: there is 8-26V wide power input range, compatible electrical system supply voltage is the vehicle of 12V or 24V.
8. pure electric automobile according to claim 4 and plug-in hybrid-power automobile run at a low speed prompt mixer,
It is characterized in that: there is 8-26V wide power input range, compatible electrical system supply voltage is the vehicle of 12V or 24V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821217153.1U CN209225055U (en) | 2018-07-30 | 2018-07-30 | Pure electric automobile and plug-in hybrid-power automobile run at a low speed prompt mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821217153.1U CN209225055U (en) | 2018-07-30 | 2018-07-30 | Pure electric automobile and plug-in hybrid-power automobile run at a low speed prompt mixer |
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| Publication Number | Publication Date |
|---|---|
| CN209225055U true CN209225055U (en) | 2019-08-09 |
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| CN201821217153.1U Active CN209225055U (en) | 2018-07-30 | 2018-07-30 | Pure electric automobile and plug-in hybrid-power automobile run at a low speed prompt mixer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108944663A (en) * | 2018-07-30 | 2018-12-07 | 湖南考思特电子有限公司 | Pure electric automobile and plug-in hybrid-power automobile run at a low speed prompt mixer |
| CN112158129A (en) * | 2020-09-25 | 2021-01-01 | 宝能(广州)汽车研究院有限公司 | Electric vehicle and low-speed prompt tone system |
| CN114670750A (en) * | 2020-12-24 | 2022-06-28 | 上海汽车电驱动有限公司 | Sound wave simulation method for driving motor |
-
2018
- 2018-07-30 CN CN201821217153.1U patent/CN209225055U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108944663A (en) * | 2018-07-30 | 2018-12-07 | 湖南考思特电子有限公司 | Pure electric automobile and plug-in hybrid-power automobile run at a low speed prompt mixer |
| CN112158129A (en) * | 2020-09-25 | 2021-01-01 | 宝能(广州)汽车研究院有限公司 | Electric vehicle and low-speed prompt tone system |
| CN114670750A (en) * | 2020-12-24 | 2022-06-28 | 上海汽车电驱动有限公司 | Sound wave simulation method for driving motor |
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