CN207644259U - A kind of new-energy automobile runs at a low speed reminiscences - Google Patents
A kind of new-energy automobile runs at a low speed reminiscences Download PDFInfo
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- CN207644259U CN207644259U CN201721463424.7U CN201721463424U CN207644259U CN 207644259 U CN207644259 U CN 207644259U CN 201721463424 U CN201721463424 U CN 201721463424U CN 207644259 U CN207644259 U CN 207644259U
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- unit
- new
- energy automobile
- main control
- reminiscences
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Abstract
The utility model provides a kind of new-energy automobile and runs at a low speed reminiscences, including pulse receiving unit, main control unit, audio output unit, sound volume regulation unit, indicator unit and power supply unit.The utility model is when new-energy automobile starting and speed is when driving less than 20km/h, it can be simulated according to the driving condition of vehicle and travels sound, to remind goers outside vehicle or vehicle actively to avoid, prevent the safety accidents such as personnel's injury and vehicle collision from occurring, ensure the operational safety of new-energy automobile, its is simple in structure, and system power dissipation is low, of low cost, stability and good reliability, response quickly, using flexible are with good expansibility.
Description
Technical field
The utility model is related to new-energy automobile transport condition control technology field, more particularly to a kind of new-energy automobile is low
Speed traveling reminiscences.
Background technology
New-energy automobile refer to using unconventional vehicle fuel (or using conventional vehicle fuel but load new type power fill
Set), the automobile with new technology, new construction and advanced technology principle.Wherein pure electric automobile (BEV), hybrid electric vapour
Vehicle (HEV) and fuel cell electric vehicle (FCEV) development prospect are the best, and at present country widely popularize it is main new
Energy vehicle.
With the high speed development of New Energy Sources In China auto industry, more and more new-energy automobiles will be launched.Pure electricity
Dynamic and plug-in hybrid-power automobile is all to utilize driving motor supplies power source in starting, and startup sound is smaller, starting
Speed, in city and crowded region, the safety accident of the pedestrian and other vehicles that are easy to cause outside to vehicle.
Utility model content
(1) the technical issues of solving
To solve the above-mentioned problems, the utility model provides a kind of new-energy automobile and runs at a low speed reminiscences, when new energy
Source vehicle starting and speed when driving less than 20km/h, its can be simulated according to the driving condition of vehicle and travels sound, to remind
Goers outside vehicle or vehicle actively avoid, and prevent the safety accidents such as personnel's injury and vehicle collision from occurring, it is ensured that new-energy automobile
Operational safety.
(2) technical solution
A kind of new-energy automobile runs at a low speed reminiscences, including pulse receiving unit, main control unit, audio output unit,
Sound volume regulation unit, indicator unit and power supply unit；
The pulse receiving unit collection vehicle speed, gear, left and right turn isopulse signal, output and the master control list
The ADC mouths of member are connected；
The main control unit identification vehicle speed, gear, left and right turn isopulse signal, and Composite tone signal, output
It is separately connected the audio output unit, the sound volume regulation unit and the indicator unit；
The audio output unit is connected with the main control unit, after the signal amplification that the main control unit is synthesized, pushes away
Dynamic loud speaker sends out prompting sound；
The sound volume regulation unit is connected with each other with the main control unit, realizes volume adjusting or mute；
The indicator unit is connected with the main control unit, indicates whether to be in mute state；
The power supply unit converts vehicle-mounted 12V/24V voltages to 5V voltages, gives other each module for power supply.
Further, the pulse receiving unit includes operational amplifier, trigger, the first capacitance, the second capacitance and
One~the 4th resistance；The wherein described operational amplifier selects single supply dual operational amplifier LM358, the trigger selection to apply close
Special phase inverter 74HC14D.
Further, the main control unit selects the microcontroller STM32F103R8 of 32 Coretex-M3 kernels.
Further, the audio output unit includes speech chip, loud speaker, the first~the 21st button and the 5th
Resistance, wherein the speech chip selects high-quality MP3 speech chips Y8301-SS0P24MP3, the loud speaker selection to have
The combination loudspeaker of water resistance.
Further, the indicator unit selects red and green color light emitting diode.
Further, the power supply unit selects DC-DC dc switch conversion chips XL1509-5.0E.
(3) advantageous effect
The utility model provides a kind of new-energy automobile and runs at a low speed reminiscences, and when new-energy automobile starting and speed is low
When driving in 20km/h, it can be simulated according to the driving condition of vehicle and travels sound, to remind goers outside vehicle or vehicle actively
Evacuation prevents the safety accidents such as personnel's injury and vehicle collision from occurring, it is ensured that the operational safety of new-energy automobile, structure letter
Single, system power dissipation is low, of low cost, stability and good reliability, response quickly, and using flexible is with good expansibility.
Description of the drawings
Fig. 1 runs at a low speed the system structure diagram of reminiscences for a kind of new-energy automobile involved by the utility model.
Fig. 2 runs at a low speed the pulse receiving unit circuit of reminiscences for a kind of new-energy automobile involved by the utility model
Schematic diagram.
Fig. 3 runs at a low speed the audio output unit circuit of reminiscences for a kind of new-energy automobile involved by the utility model
Schematic diagram.
Specific implementation mode
The embodiment involved by the utility model is described in further details below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of new-energy automobile runs at a low speed reminiscences, including pulse receiving unit, main control unit, audio
Output unit, sound volume regulation unit, indicator unit and power supply unit；Pulse receiving unit collection vehicle speed, gear, left and right
Isopulse signal is turned to, output is connected with the ADC of main control unit mouths；Main control unit identifies vehicle speed, gear, left and right turn etc.
Pulse signal, and Composite tone signal, output are separately connected audio output unit, sound volume regulation unit and indicator unit；Sound
Frequency output unit is connected with main control unit, after the signal amplification of main control unit synthesis, loud speaker is pushed to send out prompting sound；Volume
It adjusts unit to be connected with each other with main control unit, realizes volume adjusting or mute；Indicator unit is connected with main control unit, refers to
Show whether be in mute state；Power supply unit converts vehicle-mounted 12V/24V voltages to 5V voltages, gives other each module for power supply.
For not using the vehicle of CAN bus, the vehicle acquired from onboard sensor is received using pulse receiving unit
Speed, gear, left and right turn isopulse signal.As shown in Fig. 2, pulse receiving unit include operational amplifier U1, trigger U2,
Capacitance C1, capacitance C2 and resistance R1~R4；Wherein operational amplifier U1 selects single supply dual operational amplifier LM358, trigger
U2 selects schmitt inverter 74HC14D.Pulse receiving unit is accessed into onboard sensor equipment, vehicle-mounted biography by hardwire interface
Vehicle speed, gear, the left and right turn isopulse signal of sensor acquisition are mostly square-wave signal, and general square-wave signal is all
Low level is 0V, high level 5V.LM358 constitutes typical single supply amplifying circuit, and divider resistance R2 and R4 resistance values are identical, will
5V is divided into 2.5V, as long as the clutter less than 2.5V just filters the interference signal less than 2.5V all by not amplifier U1
Fall.74HC14D is schmitt inverter, and low and high level has threshold value, equally can be very good filtering clutter.Output is to compare
Clean 5V square-wave signals, the ADC mouths for accessing main control unit are converted to digital signal to carry out analysis calculating.
Main control unit selects the microcontroller STM32F103R8 of 32 Coretex-M3 kernels, the inside up to 256K Flash to deposit
Reservoir, 2.0~3.6V Width funtions and -40~105 DEG C of wide temperature ranges, multiple clock is optional, internal highest 72MHz RC clocks,
Multiple power sources management mode, such as wait for, active shutdown, shut down, 12 ADC of band, 1 road CAN interface, 2 road DAC are I/O mouthfuls multiple
And external interrupt, arithmetic speed is fast, meets the requirement of sound quick response.Powering on for STM32F103R8 is completed with RC reset circuits
It resets, one diode of releasing of parallel connected in reverse phase on resistance, to cope with the rapid fluctuations of power supply.STM32F103R8 passes through pulse
Vehicle speed, gear, the left and right turn isopulse signal of receiving unit offer are analyzed, are calculated, Composite tone signal, the sound
Frequency signal frequency changes with speed.
As shown in figure 3, audio output unit includes speech chip U3, loud speaker LS1, button K1~K21 and resistance R5,
Middle speech chip U3 selects high-quality MP3 speech chip Y8301-SS0P24MP3, loud speaker LS1 to select with water resistance
Combination loudspeaker.Y8301-SS0P24MP3 supports MP3, WAV format dual decoding, built-in SPI-Flash as storage medium,
Equipped with Micro USB interfaces, the audio content that computer freely replaces Flash can be connected by data line.And built-in 3W power amplifiers,
The loudspeaker of 3W can be directly driven, it is very easy to use.It supports that standard serial port control, serial ports are 3.3V Transistor-Transistor Logic levels, therefore
It can be connected directly with the UART port of STM32F103R8.Y8301-SS0P24MP3 there are six trigger I/O port, could support up 21 sections by
The one-to-one triggering of key plays, and button K1~K21 corresponds to 1~21 section of voice.In order to remind goers outside vehicle or vehicle, need in compartment
Outside installation loud speaker, in order to cope with the special circumstances such as rainwater, loud speaker needs to have water resistance.Loud speaker is using high simultaneously
Woofer ensures that high and low frequency sound is exportable, it is ensured that goers outside vehicle or vehicle can under alternative sounds frequency
Perception.
Vehicle may travel the environment to need peace and quiet at hospital, school or night etc., need tone will be reminded low at this time or
It closes, therefore volume adjusting or mute function is carried out by sound volume regulation unit.
It is power supply indicator that indicator unit, which selects red and green color light emitting diode, green, is always on after the power is turned on；Red is quiet
Sound indicator light, when reminding sound volume to be adjusted to mute, indicator light is lighted, and driver is reminded to have been enter into mute state at present.
According to wide power, the requirement of low-power consumption, power supply unit selects DC-DC dc switch conversion chips XL1509-5.0E.
XL1509-5.0E maximum switching currents reach 2A, and working limit voltage is 45V, and reliably working upper voltage limit is 40V, is carried
Stream protection.Due to automobile electronics power supply reverse polarity protection require and this reminiscences real work electric current, power supply just
Pole seals in diode, while a powerful TVS pipe in parallel between power input and ground, can effectively protect subsequent device
It is without damage.
The utility model provides a kind of new-energy automobile and runs at a low speed reminiscences, and when new-energy automobile starting and speed is low
When driving in 20km/h, it can be simulated according to the driving condition of vehicle and travels sound, to remind goers outside vehicle or vehicle actively
Evacuation prevents the safety accidents such as personnel's injury and vehicle collision from occurring, it is ensured that the operational safety of new-energy automobile, structure letter
Single, system power dissipation is low, of low cost, stability and good reliability, response quickly, and using flexible is with good expansibility.
Embodiment described above is only that preferred embodiments of the present invention are described, not to this practicality
Novel conception and scope is defined.Without departing from the design concept of the present utility model, ordinary people in the field couple
The all variations and modifications that the technical solution of the utility model is made, should fall within the protection scope of the present utility model, this reality
With novel claimed technology contents, all record in detail in the claims.
Claims (6)
1. a kind of new-energy automobile runs at a low speed reminiscences, it is characterised in that：Including pulse receiving unit, main control unit, audio
Output unit, sound volume regulation unit, indicator unit and power supply unit；
The pulse receiving unit collection vehicle speed, gear, left and right turn isopulse signal, output and the main control unit
ADC mouthfuls are connected；
The main control unit identification vehicle speed, gear, left and right turn isopulse signal, and Composite tone signal, output difference
Connect the audio output unit, the sound volume regulation unit and the indicator unit；
The audio output unit is connected with the main control unit, and after the signal amplification that the main control unit is synthesized, promotion is raised
Sound device sends out prompting sound；
The sound volume regulation unit is connected with each other with the main control unit, realizes volume adjusting or mute；
The indicator unit is connected with the main control unit, indicates whether to be in mute state；
The power supply unit converts vehicle-mounted 12V/24V voltages to 5V voltages, gives other each module for power supply.
2. a kind of new-energy automobile according to claim 1 runs at a low speed reminiscences, it is characterised in that：The pulse receives
Unit includes operational amplifier, trigger, the first capacitance, the second capacitance and the first~the 4th resistance；The wherein described operation amplifier
Device selects single supply dual operational amplifier LM358, the trigger to select schmitt inverter 74HC14D.
3. a kind of new-energy automobile according to claim 1 runs at a low speed reminiscences, it is characterised in that：The main control unit
Select the microcontroller STM32F103R8 of 32 Coretex-M3 kernels.
4. a kind of new-energy automobile according to claim 1 runs at a low speed reminiscences, it is characterised in that：The audio output
Unit includes speech chip, loud speaker, the first~the 21st button and the 5th resistance, wherein the speech chip selects Gao Pin
Matter MP3 speech chips Y8301-SS0P24MP3, the loud speaker select the combination loudspeaker with water resistance.
5. a kind of new-energy automobile according to claim 1 runs at a low speed reminiscences, it is characterised in that：The indicator light list
Member selects red and green color light emitting diode.
6. a kind of new-energy automobile according to claim 1 runs at a low speed reminiscences, it is characterised in that：The power supply unit
Select DC-DC dc switch conversion chips XL1509-5.0E.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721463424.7U CN207644259U (en) | 2017-11-06 | 2017-11-06 | A kind of new-energy automobile runs at a low speed reminiscences |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721463424.7U CN207644259U (en) | 2017-11-06 | 2017-11-06 | A kind of new-energy automobile runs at a low speed reminiscences |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207644259U true CN207644259U (en) | 2018-07-24 |
Family
ID=62884595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721463424.7U Expired - Fee Related CN207644259U (en) | 2017-11-06 | 2017-11-06 | A kind of new-energy automobile runs at a low speed reminiscences |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207644259U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110816400A (en) * | 2019-09-29 | 2020-02-21 | 浙江合众新能源汽车有限公司 | System and method for prompting running of electric automobile |
| CN111439202A (en) * | 2020-04-24 | 2020-07-24 | 江西江铃集团新能源汽车有限公司 | Pedestrian warning method and system for electric vehicle |
-
2017
- 2017-11-06 CN CN201721463424.7U patent/CN207644259U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110816400A (en) * | 2019-09-29 | 2020-02-21 | 浙江合众新能源汽车有限公司 | System and method for prompting running of electric automobile |
| CN111439202A (en) * | 2020-04-24 | 2020-07-24 | 江西江铃集团新能源汽车有限公司 | Pedestrian warning method and system for electric vehicle |
| CN111439202B (en) * | 2020-04-24 | 2021-11-26 | 江西江铃集团新能源汽车有限公司 | Pedestrian warning method and system for electric vehicle |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180724 Termination date: 20181106 |
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| CF01 | Termination of patent right due to non-payment of annual fee |