CN110979172B - Electric vehicle prompting sound system and method based on actual road conditions - Google Patents
Electric vehicle prompting sound system and method based on actual road conditions Download PDFInfo
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- CN110979172B CN110979172B CN201911190200.7A CN201911190200A CN110979172B CN 110979172 B CN110979172 B CN 110979172B CN 201911190200 A CN201911190200 A CN 201911190200A CN 110979172 B CN110979172 B CN 110979172B
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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
- B60Q5/006—Arrangement or adaptation of acoustic signal devices automatically actuated indicating risk of collision between vehicles or with pedestrians
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
Abstract
The invention relates to the technical field of electric vehicle prompting sound systems, in particular to an electric vehicle prompting sound system based on actual road conditions and a method thereof. The invention aims to provide an electric vehicle prompting sound system and method based on actual road conditions.
Description
Technical Field
The invention relates to the technical field of electric vehicle prompt tone systems, in particular to an electric vehicle prompt tone system and method based on actual road conditions.
Technical Field
With the popularization of electric automobiles, meanwhile, because the electric automobiles are not provided with engines, the running process is quite quiet, and pedestrians cannot perceive the approach of the vehicles. Therefore, the national standard of the people's republic of China defines that the electric automobile needs to actively send out a prompt tone to warn pedestrians when running at low speed.
The current general technical scheme is to control the generation and the closing of the warning tone according to the vehicle speed without considering the actual driving road condition. Therefore, when closed road sections such as high-speed roads, city-around roads, elevated roads and the like are congested and run at low speed, all electric vehicles can generate prompt tones, and unnecessary environmental noise is generated.
Disclosure of Invention
The invention aims to provide an electric vehicle prompting sound system and method based on actual road conditions.
In order to achieve the technical effects, the invention provides an electric vehicle prompting sound system based on actual road conditions, which comprises a vehicle-mounted navigation module, a vehicle-mounted 360-degree panoramic all-around module, an MCU (microprogrammed control unit) and a DSP (digital signal processor) module;
the vehicle-mounted navigation module and the vehicle-mounted 360-degree panoramic all-around module are used for acquiring the actual road condition of the current position of the vehicle;
the MCU acquires vehicle speed information, judges whether to output a prompt tone according to the vehicle speed information and actual road conditions, and outputs a control signal to the DSP module;
and the DSP module outputs a prompt tone according to the control signal.
Based on the above prompting sound system for the electric vehicle, the invention further provides a prompting sound method, which comprises the following steps:
s100, acquiring current vehicle speed information by the MCU, and judging whether the vehicle speed information meets the output condition of a prompt tone;
s200, when the speed information meets the prompt tone output condition, the vehicle navigation module and the vehicle 360-degree panoramic all-around module acquire the actual road condition of the current position of the vehicle;
s300, the MCU outputs a control signal to the DSP module according to the actual road condition;
and S400, the DSP module outputs a prompt tone according to the control signal.
Preferably, in step S100, the condition for outputting the warning tone is: the current vehicle speed is between 0km/h and 20km/h.
Preferably, in step S200, the actual road condition includes vehicle position information and congestion condition.
Preferably, the vehicle position information includes: highways, viaducts, closed type city-around roads, bifurcation intersections, traffic light intersections, town roads, country roads and nameless roads; the congestion condition includes: no congestion and congestion.
Preferably, in step S300, when the vehicle position information is a high speed and closed type surrounding road, the MCU outputs a control signal to the DSP module without being turned on; when the vehicle position information is a branch road junction, a country road and a nameless road, the MCU outputs a starting control signal to the DSP module.
Preferably, in step S300, when the vehicle position information is a traffic light intersection or a town road; if the congestion condition is no congestion, the MCU outputs a starting control signal to the DSP module; and if the congestion condition is congestion, the MCU outputs a control signal which is not started to the DSP module.
Therefore, the technical scheme provided by the invention can distinguish real-time road conditions of vehicle driving, such as highways, traffic light intersections, congested road sections and the like, by the vehicle-mounted navigation information, switches the switch for outputting the prompt tone in combination with the real-time road conditions, and is more reasonable than the general switch which can consistently send the prompt tone only when the vehicle speed is more than 0km/h and less than or equal to 20km/h, thereby reducing unnecessary noise pollution and being more environment-friendly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present invention or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a connection block diagram of a prompt tone system of an electric vehicle according to an embodiment of the present invention;
FIG. 2 is a flow chart of an electric vehicle warning tone method according to an embodiment of the present invention;
FIG. 3 is a flow chart of an electric vehicle warning sound method according to an embodiment of the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The electric vehicle controls the generation and the closing of the prompt tone according to the vehicle speed, and the actual driving road condition is not considered. Therefore, when closed road sections such as high-speed roads, city-around roads, elevated roads and the like are congested and run at low speed, all electric vehicles can generate prompt tones, and unnecessary environmental noise is generated.
As shown in fig. 1, in order to solve the above technical problems, the present embodiment provides an electric vehicle warning sound system based on actual road conditions, which combines with a currently universally designed analog engine sound device, increases real-time navigation road condition information input of vehicle-mounted on-line map navigation, and controls a warning sound switch according to different road conditions and road sections.
Therefore, the electric vehicle prompt tone system provided by the embodiment specifically comprises a vehicle navigation module, a vehicle 360-degree panoramic all-around module, an MCU and a DSP module.
The vehicle-mounted navigation module and the vehicle-mounted 360-degree panoramic all-around module are used for acquiring the actual road condition of the current position of the vehicle;
the MCU is used for acquiring the vehicle speed information, judging whether to output a prompt tone according to the vehicle speed information and the actual road condition, and outputting a control signal to the DSP module;
the DSP module outputs a prompt tone according to the control signal.
As shown in fig. 2-3, based on the above-mentioned electric vehicle warning sound system, the present embodiment further provides a warning sound method, including the following steps:
s100, the MCU acquires the current vehicle speed information and judges whether the vehicle speed information meets the output condition of the prompt tone.
Wherein, the prompt tone output condition is as follows: the current vehicle speed is between 0km/h and 20km/h. The prompt tone output condition can refer to the current universal prompt tone starting condition of the electric vehicle.
And S200, when the speed information meets the prompt tone output condition, the vehicle-mounted navigation module and the vehicle-mounted 360-degree panoramic all-around module acquire the actual road condition of the current position of the vehicle.
In this step, the actual road conditions include vehicle location information and congestion conditions.
Specifically, the vehicle position information includes: highways, viaducts, closed type city-surrounding roads, bifurcation intersections, traffic light intersections, town roads, country roads and nameless roads;
congestion conditions include: no congestion and congestion.
In the vehicle navigation module, the vehicle position information and the congestion condition can be directly acquired.
And S300, the MCU outputs a control signal to the DSP module according to the actual road condition.
The control signal includes an on signal and an off signal.
When the vehicle position information is high-speed and closed type city-surrounding roads, the MCU outputs a control signal which is not started to the DSP module no matter whether the congestion condition is congestion or non-congestion;
when the vehicle position information is a branch road junction, a country road and a nameless road, the MCU outputs a starting control signal to the DSP module no matter whether the congestion condition is congestion or non-congestion.
When the vehicle position information is a traffic light intersection or a town road: if the congestion condition is no congestion, the MCU outputs a starting control signal to the DSP module; and if the congestion condition is congestion, the MCU outputs a control signal which is not started to the DSP module.
And S400, the DSP module outputs a prompt tone according to the control signal.
Therefore, the technical scheme provided by the embodiment distinguishes real-time road conditions of vehicle driving through vehicle navigation information, such as highways, traffic light intersections, congested road sections and the like, switches on and off the switch for outputting the prompt tone in combination with the real-time road conditions, and is more reasonable than the general method of consistently sending the prompt tone as long as the vehicle speed is more than 0km/h and less than or equal to 20km/h, reduces unnecessary noise pollution and is more environment-friendly.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (3)
1. The utility model provides an electric motor car suggestion sound system based on actual road conditions which characterized in that: the system comprises a vehicle-mounted navigation module, a vehicle-mounted 360-degree panoramic all-around module, an MCU and a DSP module;
the vehicle-mounted navigation module and the vehicle-mounted 360-degree panoramic all-around module are used for acquiring an actual road condition of the current position of the vehicle, wherein the actual road condition comprises vehicle position information and congestion conditions; the vehicle position is whether the vehicle is positioned at a traffic light intersection or not; the congestion condition includes: no congestion and congestion;
the MCU acquires the vehicle speed information, judges whether a prompt tone is output or not according to the vehicle speed information and the actual road condition, and outputs a control signal to the DSP module, particularly when the vehicle position information is a traffic light intersection; if the congestion condition is no congestion, the MCU outputs a starting control signal to the DSP module; if the congestion condition is congestion, the MCU outputs a control signal which is not started to the DSP module;
and the DSP module outputs a prompt tone according to the control signal.
2. A method of providing a warning sound based on the electric vehicle warning sound system of claim 1, characterized in that: the method comprises the following steps:
s100, acquiring current vehicle speed information by the MCU, and judging whether the vehicle speed information meets the output condition of a prompt tone;
s200, when the speed information meets the prompt tone output condition, the vehicle navigation module and the vehicle 360-degree panoramic all-around module acquire the actual road condition of the current position of the vehicle;
the actual road conditions comprise vehicle position information and congestion conditions; the vehicle position information is whether the vehicle is positioned at a traffic light intersection or not; the congestion condition includes: no congestion and congestion;
s300, the MCU outputs a control signal to the DSP module according to the actual road condition, specifically when the vehicle position information is a traffic light intersection; if the congestion condition is no congestion, the MCU outputs a starting control signal to the DSP module; if the congestion condition is congestion, the MCU outputs a control signal which is not started to the DSP module;
and S400, the DSP module outputs a prompt tone according to the control signal.
3. The alert tone method according to claim 2, wherein: in step S100, the condition for outputting the alert tone is: the current vehicle speed is between 0km/h and 20km/h.
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| JP2005253236A (en) * | 2004-03-05 | 2005-09-15 | Clarion Co Ltd | Running noise generator for running vehicle |
| CN104960465A (en) * | 2010-03-25 | 2015-10-07 | 日本先锋公司 | Analog sound generating device and analog sound generating method |
| CN110450710A (en) * | 2019-07-31 | 2019-11-15 | 惠州市德赛西威汽车电子股份有限公司 | A kind of electric vehicle low speed prompt system for electrical teaching |
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|---|---|---|---|---|
| JPH1039392A (en) * | 1996-07-25 | 1998-02-13 | Nikon Corp | Camera |
| CN106671986B (en) * | 2016-12-21 | 2019-06-14 | 武汉长江通信智联技术有限公司 | A kind of car-mounted device and method of the truck traffic based on DSRC |
| CN208044064U (en) * | 2018-04-24 | 2018-11-02 | 无锡英捷汽车科技有限公司 | A kind of intelligent electric automobile runs at a low speed prompt system for electrical teaching |
| CN110614950A (en) * | 2019-09-30 | 2019-12-27 | 惠州市德赛西威汽车电子股份有限公司 | Engine sound early warning method and system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005253236A (en) * | 2004-03-05 | 2005-09-15 | Clarion Co Ltd | Running noise generator for running vehicle |
| CN104960465A (en) * | 2010-03-25 | 2015-10-07 | 日本先锋公司 | Analog sound generating device and analog sound generating method |
| CN110450710A (en) * | 2019-07-31 | 2019-11-15 | 惠州市德赛西威汽车电子股份有限公司 | A kind of electric vehicle low speed prompt system for electrical teaching |
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