CN105835767A - Vehicle door opening warning method - Google Patents
Vehicle door opening warning method Download PDFInfo
- Publication number
- CN105835767A CN105835767A CN201610195977.2A CN201610195977A CN105835767A CN 105835767 A CN105835767 A CN 105835767A CN 201610195977 A CN201610195977 A CN 201610195977A CN 105835767 A CN105835767 A CN 105835767A
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- Prior art keywords
- car door
- control module
- signal
- vcu
- information
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
-
- 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
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
- B60Q9/008—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for anti-collision purposes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Traffic Control Systems (AREA)
- Emergency Alarm Devices (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention discloses a vehicle door opening warning method. The method includes the steps that vehicle door opening information is detected through a VCU, and a current traffic condition signal is obtained from a slave control module; and whether a vehicle door can be safely opened or not is judged according to the current traffic condition signal, if the vehicle door cannot be safely opened, warning operation is executed through the slave control module, and if the vehicle door can be safely opened, the step that the current traffic condition signal is obtained from the slave control module is executed again. By the adoption of the method, it can be guaranteed that the vehicle door is safely opened more accurately, more safely and more efficiently.
Description
Technical field
The present invention relates to auto manufacturing technology, particularly to car door opening alarming method for power.
Background technology
Car door is the passage providing the vehicle that comes in and goes out for driver and passenger, and completely cuts off external interference, alleviates side collision, protection
The device of occupant safety.When the Qianmen of existing automobile is opened, need to examine rearview mirror, check that rear is with or without pedestrians
With other vehicles；When back door is opened, need to lean to one side later, observe rear traffic conditions, then remove opening car door.Occupant
Needs of getting off examine with or without vehicular traffic, otherwise may cause vehicle accident.
Summary of the invention
An embodiment provides car door opening alarming method for power, described car door opening alarming method for power solves tradition and opens
Need when opening car door artificial observe that rearview mirror or lean to one side later judges can the technical problem of safe opening car door.Further, institute
State car door opening alarming method for power to include:
Control unit for vehicle VCU detects car door opening information, obtains current traffic condition signal from from control module；
Judge whether car door can be with safe opening, if it does not, notice is described from control module according to described current traffic condition signal
Perform warning operation, if it is, return described from the step obtaining current traffic condition signal from control module.
Alternatively, described before obtaining current traffic condition signal from control module, the method farther includes:
Described VCU sends activation signal to described from control module so that described reception radar wave transmitting-receiving after control module activation
Radar signal that device transmits also carries out pretreatment and obtains described current traffic condition signal described radar signal.
Alternatively, described control unit for vehicle VCU detects car door opening information, specifically includes:
Speed information in described VCU Read Controller LAN CAN, if speed is 0, reads further
Car door information in described CAN, if described car door information is for opening, the most described VCU detects that car door opening is believed
Breath.
Alternatively, if it is not 0 that described VCU reads speed, then send sleep signal to described from control module.
Alternatively, described traffic signal include velocity information and range information, described velocity information be vehicle body stranger and
/ or the movement velocity of object, described range information is radar wave transceiver described in described vehicle body stranger and/or object distance
Distance.
Alternatively, described judge whether car door can specifically include with safe opening according to described traffic signal:
Described VCU judges whether described velocity information is more than 0, if it is, judge that car door opening is dangerous；
Otherwise, determine whether whether described range information is less than predeterminable range threshold value, if it is, judge that car door opening is endangered
Danger, otherwise judges that car door can be with safe opening.
Alternatively, after described VCU judges car door opening danger, the method farther includes:
Described VCU sends warning activation signal to described from control module, and described alarm signal includes light warning activation signal
And/or sound warning activation signal so that described after control module receives described warning activation signal, alert according to described light
Show that activation signal performs warning lamp and lights operation, and/or perform ring horn operation according to described sound warning activation signal.
According to above-mentioned each embodiment, the invention provides a kind of car door opening alarming method for power, when VCU detects that car door is opened
When opening information, obtaining current traffic condition signal from from control module, this current traffic condition signal is to resolve radar from control module
Ripple transceiver transmits the radar wave information come and obtains and be sent to VCU, VCU according to the current traffic condition letter received
Number judging whether to notify to perform warning operation from control module, the method makes automobile can automatically detect whether current car door can pacify
Full open, it is to avoid artificial observation rearview mirror or lean to one side later judge current car door can safe opening, compared to artificially
Judging, the method is more accurate, safe efficient.
Accompanying drawing explanation
The present invention is only schematically illustrated and explains by the following drawings, not delimit the scope of the invention.
Fig. 1 is the flow chart of technical solution of the present invention；
Fig. 2 is the system structure schematic diagram of the embodiment of the present invention；
Fig. 3 is the flow chart of the embodiment of the present invention.
Detailed description of the invention
In order to technical characteristic, purpose and the effect of invention are more clearly understood from, the now tool of the comparison accompanying drawing explanation present invention
Body embodiment, the most identical label represents identical part.
In this article, " schematically " expression " serves as example, example or explanation ", " should not show being described herein as
Meaning property " any diagram, embodiment be construed to a kind of preferred or more advantage technical scheme.
For making simplified form, each figure only schematically show part related to the present invention, and do not represent its conduct
The practical structures of product.It addition, so that simplified form readily appreciates, some figure has the parts of identical structure or function,
Only symbolically depict one of them, or only mark one of them.
In this article, " on ", D score, "front", "rear", "left", "right" etc. be only used for representing the phase between relevant portion
To position relationship, and the absolute position of these relevant portions non-limiting.
In this article, " first ", " second " etc. are only used for differentiation each other, rather than represent significance level and order and
The premise etc. existed each other.
In this article, the restriction on the mathematics of the also non-critical such as " equal ", " identical " and/or geometry meaning, also comprise this
Skilled person may be appreciated and the error of the permission such as manufacture or use.Except as otherwise noted, numerical range herein
Not only include the gamut in two end points, also include being contained in some subranges therein.
Fig. 1 is the flow chart of technical solution of the present invention, as it is shown in figure 1, comprise the following steps:
Step 101: control unit for vehicle VCU detects car door opening information.
In this step, control unit for vehicle VCU detects car door opening information, specifically includes:
VCU reads the speed information in CAN (Controller Area Network, controller local area network) bus, if
Speed is 0, reads the car door information in CAN further, if the car door information read is for opening, then and VCU
Car door opening information detected；If it is not 0 that VCU reads speed, then send sleep signal to from control module.The present invention
Assume that only car door its is possible to open when speed is 0, be not therefore 0 when VCU reads speed from CAN
Time, then it is made without car door opening warning and judges and operation, therefore send sleep signal to from control module so that from control mould
Block keeps resting state, does not carry out current traffic condition process.
Step 102:VCU obtains current traffic condition signal from from control module.
In this step, VCU, before obtaining current traffic condition signal from control module, farther includes:
VCU sends activation signal to from control module so that is activated by resting state from control module, then receives radar wave transmitting-receiving
Radar signal that device transmits also carries out pretreatment and obtains current traffic condition signal the radar signal received, finally will be pre-
Process the current traffic condition signal obtained and be sent to VCU.
Specifically, traffic signal includes velocity information and range information, wherein, velocity information be vehicle body stranger and/
Or the movement velocity of object, range information is this vehicle body stranger and/or the distance of object distance radar wave transceiver.
Preferably, after control module receives the radar wave signal that radar wave transceiver sends, permissible from this radar wave signal
It is resolved to the time difference of transmitted wave and echo, in conjunction with the speed of radar wave, vehicle body stranger and/or object can be calculated
The distance of distance radar wave transceiver and movement velocity.
Such as:
From the first radar wave signal received, t launch time of transmitted wave is resolved from control module11Corresponding with this transmitted wave
The reception time t of echo12, calculate current radar ripple transceiver and vehicle body stranger and/or thing according to spread speed c of radar wave
Distance l between body1, andWherein, c is the light velocity；Send when receiving radar wave transceiver from control module
After the second radar wave signal come over, still utilize the distance between above-mentioned calculating radar wave transceiver and vehicle body stranger and/or object
Method, resolve transmitted wave t launch time21The reception time t of the echo corresponding with this transmitted wave22, calculate current thunder
Reach distance l between ripple transceiver and vehicle body stranger and/or object2, andThen, according to formulaCalculate vehicle body stranger and/or the movement velocity of object.
From control module by movement velocity v of calculated vehicle body stranger and/or object and and vehicle body stranger and/or object away from
Distance l from radar wave transceiver2It is sent to VCU.
It is more than a kind of approximate calculation method, is merely just given a kind of from control module calculating velocity information and the side of range information
Method, besides this method, other calculate the method for velocity information and range information also in protection scope of the present invention from control module
Within, will not enumerate at this.
Preferably, the present invention also sets up distance threshold L, only when the control calculated range information of module is less than L,
Calculated range information and velocity information are carried in traffic signal and are sent to VCU, if calculated from control module
The range information obtained is more than or equal to L, does not the most send traffic signal to VCU.When VCU does not has in Preset Time
Have and receive the traffic signal sent from control module, then judge current opening car door safety.For example, it is possible to arrange distance
Threshold value L is 20 meters, during vehicle pulling over observing door opening, that main attention is low-speed vehicle and pedestrian, and generally its speed
The super only 30km/h of degree, super with pedestrian's move distance per second only 8.5 meters of all low-speed vehicle, so being set as 20
Having more than time of 2 seconds during rice points out the traffic at member rear, and the time is more abundant, and also making member react will not be too
Hastily.
According to current traffic condition signal, step 103:VCU judges whether car door can be with safe opening, if it does not, perform step
Rapid 104, if it is, return step 102.
Specifically, VCU according to traffic signal judge car door whether can with safe opening, including:
VCU judges whether velocity information is more than 0, if it is, judge that car door opening is dangerous；
Otherwise, determine whether whether range information is less than predeterminable range threshold value, if it is, judge that car door opening is dangerous,
Otherwise judge that car door can be with safe opening.
Step 104: notify to perform warning operation from control module.
Judged result based on step 103, car door opening is dangerous, then VCU sends warning activation signal to from control module,
This warning activation signal includes light warning activation signal and sound warning activation signal so that receives warning from control module and swashs
Live after signal, perform warning lamp according to light warning activation signal and light operation, perform according to described sound warning activation signal
Ring horn operation.
Being described further technical solution of the present invention with embodiment below, Fig. 2 is the system structure schematic diagram of the present embodiment,
As in figure 2 it is shown, this system include car battery 201, fuse 202, from control module 203, CAN 204,
VCU205, loudspeaker 206, warning lamp 207, radar wave transceiver 208, wherein car battery 201 provides 12V on automobile
Voltage, powers for low-pressure system；Fuse 202 fuses when big electric current to protect whole circuit in time；From control module 203
It is logic judgment unit and radar wave signal processing unit；Loudspeaker 206 perform sound warning operation, and warning lamp 207 performs police
Show that modulating signal operates；CAN 204 mainly undertakes VCU and the information exchange from control module, function
Activate and the acquisition of information of vehicles；VCU205 is logic judgment unit, and radar signal, judgement that reception processed are
No transmission sound, the activation signal of warning lamp；Radar wave transceiver 208 is carried out device, sends, receives radar wave.
Fig. 3 is the flow chart of the present embodiment, as it is shown on figure 3, comprise the following steps:
Step 301:VCU reads the speed information in CAN.
Step 302:VCU judges whether speed is 0, if it does not, perform step 303, otherwise performs step 305.
Step 303:VCU sends sleep signal to from control module.
Step 304: enter resting state from control module.
When speed is not 0, the car door opening alarm function on automobile does not starts, and is constantly in resting state from control module,
Activate when speed is not 0 from control module until VCU reads.
Step 305:VCU reads the car door information in CAN.
Step 306:VCU judges whether the car door information read is unlatching, if it is, perform step 307, otherwise returns
Return step 302.
Step 307:VCU sends activation signal to from control module.
In this step, VCU sends activation signal to from control module so that entered state of activation from control module by resting state.
Step 308: from control module activation radar wave transceiver, and receive radar wave signal.
In this step, from control module activation radar wave transceiver so that radar wave transceiver sends transmitted wave and receives reflection
Ripple, is sent to transmitted wave from control module as radar wave signal with echo.
Step 309: the radar wave signal received from control module pretreatment, obtains the speed letter of vehicle body stranger or the vehicles
Breath and this vehicle body stranger or the range information of vehicle distance radar wave transceiver.
In this step, from control module pre-processed radar ripple signal, specifically can extract the transmitted wave in radar wave signal and reflection
The interval time of ripple and the spread speed of radar wave calculate outside vehicle body stranger or the velocity information of the vehicles and this vehicle body
People or the range information of vehicle distance radar wave transceiver.
Owing to radar wave transceiver is arranged on automobile, such as near automobile rear bumper, therefore vehicle body stranger or traffic work
The distance of tool distance radar wave transceiver can be equal to vehicle body stranger or vehicle distance will the automobile of opening car door
Distance.
Step 310: the velocity information and the range information that pretreatment are obtained from control module are sent to VCU.
Step 311:VCU judges whether the velocity information received is 0, if it does not, perform step 312, otherwise performs
Step 313.
If the velocity information that VCU receives not is 0, illustrate that vehicle body back side has moving object, the pedestrian such as moved or friendship
Logical instrument, otherwise, illustrates that vehicle body back side does not has moving object, such as vehicle body back side nobody, the vehicles, or has quiet
People only, the vehicles.
Step 312:VCU sends sound warning activation signal and light warning activation signal to from control module so that from control mould
Tuber controls loudspeaker according to sound warning activation signal and sends warning sound, controls warning lamp according to light warning activation signal and sends
Warning light.
Step 313:VCU judges whether the range information received is less than predeterminable range threshold value, if it is, perform step 312,
Otherwise return step 305.
Judged result based on step 311, the velocity information that VCU receives is 0, and this represents that explanation vehicle body back side is not transported
Animal body, such as vehicle body back side nobody, the vehicles, or have static people, the static vehicles.When after vehicle body
When side nobody or the vehicles, car door can with safe opening, but, if there is static people or static in vehicle body back side
There is the possibility of motion suddenly in the vehicles, static people or the static vehicles, it is therefore desirable to further determines that car door is
No can with safe opening, i.e. judge range information that VCU receives whether less than predeterminable range threshold value, if it is, show
Static people or vehicle distance vehicle body are the nearest, if move suddenly may for people static during opening car door or the vehicles
Causing danger, this situation needs to perform step 312；If the range information that VCU receives is more than or equal to predeterminable range
Threshold value, illustrates to there is safe distance between vehicle body and static people or the vehicles, and now opening car door is safe, even if
Meet static people or the vehicles move suddenly, it is also possible to avoid the generation of accident in time, then need not sound warning or
Light warning, returns step 305, re-reads the car door information in CAN.
By technical solution of the present invention, when automobile come to a complete stop occupant prepare to get off time, the most equidirectional on pedestrian or vehicle process,
On car, occupant can understand the traffic at rear by the luminous prompting system that occurs on car, sees before auxiliary occupant's opening car door
Examine the traffic conditions at rear, so that occupant gets on or off the bus more added with safety guarantee on car；When automobile come to a complete stop occupant prepare get off time,
Be not detected by rear and associate with pedestrian and vehicle, but detect the insufficient space near car to make car door normally-open, now car
On generation luminous prompting system prompt occupant open the door insufficient space, it is to avoid the property loss caused of colliding with.
By technical solution of the present invention, when VCU detect occupant will opening car door time, by radar wave transceiver with from
The collaborative process of control module obtains the outer current traffic condition signal of vehicle body, with this judge car door can safe opening, if can not
Safe opening, gives and is passed through rearview mirror or lean to one side back to occupant's information warning, the method compared with artificial by sound or light
Head observation vehicle body back side situation is more accurate, safe efficient.
It is to be understood that, although this specification describes according to each embodiment, but the most each embodiment only comprises one
Individual independent technical scheme, this narrating mode of description is only that for clarity sake those skilled in the art should will say
Bright book is as an entirety, and the technical scheme in each embodiment can also be through appropriately combined, and forming those skilled in the art can
With other embodiments understood.
The a series of detailed description of those listed above is only for illustrating of the feasibility embodiment of the present invention, and
And be not used to limit the scope of the invention, all equivalent embodiments made without departing from skill of the present invention spirit or change,
As feature combination, split or repeat, should be included within the scope of the present invention.
Claims (7)
1. a car door opening alarming method for power, it is characterised in that the method includes:
Control unit for vehicle VCU detects car door opening information, obtains current traffic condition signal from from control module；
Judge whether car door can be held from control module if it does not, notice is described with safe opening according to described current traffic condition signal
Row warning operation, if it is, return described from the step obtaining current traffic condition signal from control module.
Method the most according to claim 1, it is characterised in that described from from control module obtain current traffic condition signal it
Before, the method farther includes:
Described VCU sends activation signal to described from control module so that described reception radar wave transceiver biography after control module activation
The radar signal sent also carries out pretreatment and obtains described current traffic condition signal described radar signal.
Method the most according to claim 1, it is characterised in that described control unit for vehicle VCU detects car door opening
Information, specifically includes:
Speed information in described VCU Read Controller LAN CAN, if speed is 0, reads institute further
Stating the car door information in CAN, if described car door information is for opening, the most described VCU detects car door opening information.
Method the most according to claim 3, it is characterised in that if it is not 0 that described VCU reads speed, then send out
Send sleep signal to described from control module.
Method the most according to claim 1, it is characterised in that described traffic signal includes velocity information and distance letter
Breath, described velocity information is the movement velocity of vehicle body stranger and/or object, described range information be described vehicle body stranger and/
Or the distance of radar wave transceiver described in object distance.
Method the most according to claim 5, it is characterised in that described whether judge car door according to described traffic signal
Can specifically include with safe opening:
Described VCU judges whether described velocity information is more than 0, if it is, judge that car door opening is dangerous；
Otherwise, determine whether whether described range information is less than predeterminable range threshold value, if it is, judge that car door opening is dangerous,
Otherwise judge that car door can be with safe opening.
Method the most according to claim 1, it is characterised in that after described VCU judges car door opening danger, the method
Farther include:
Described VCU sends warning activation signal to described from control module, and described warning activation signal includes light warning activation signal
And/or sound warning activation signal so that described after control module receives described warning activation signal, according to described light warning
Activation signal performs warning lamp and lights operation, and/or performs ring horn operation according to described sound warning activation signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610195977.2A CN105835767B (en) | 2016-03-31 | 2016-03-31 | Car door opening alarming method for power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610195977.2A CN105835767B (en) | 2016-03-31 | 2016-03-31 | Car door opening alarming method for power |
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| CN105835767A true CN105835767A (en) | 2016-08-10 |
| CN105835767B CN105835767B (en) | 2018-11-13 |
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| TW200706416A (en) * | 2005-08-12 | 2007-02-16 | Ying-Chieh Chang | Alarm device for altering opening of vehicle door |
| US20140118130A1 (en) * | 2012-10-25 | 2014-05-01 | Wistron Neweb Corp. | Automobile warning method and automobile warning system utilizing the same |
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| CN105835767B (en) | 2018-11-13 |
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Denomination of invention: Vehicle door opening warning method Effective date of registration: 20190513 Granted publication date: 20181113 Pledgee: Suzhou Trust Co., Ltd. Pledgor: BEIJING CHANGCHENG HUAGUAN AUTOMOBILE TECHNOLOGY CO., LTD. Registration number: 2019990000418 |