CN107284404A - Seat belt apparatus, belt reminder method and vehicle - Google Patents
Seat belt apparatus, belt reminder method and vehicle Download PDFInfo
- Publication number
- CN107284404A CN107284404A CN201610200721.6A CN201610200721A CN107284404A CN 107284404 A CN107284404 A CN 107284404A CN 201610200721 A CN201610200721 A CN 201610200721A CN 107284404 A CN107284404 A CN 107284404A
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- Prior art keywords
- safety belt
- belt
- pulse signal
- threshold value
- pulse
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
- B60R2022/4808—Sensing means arrangements therefor
- B60R2022/4816—Sensing means arrangements therefor for sensing locking of buckle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
- B60R2022/4808—Sensing means arrangements therefor
- B60R2022/4825—Sensing means arrangements therefor for sensing amount of belt winded on retractor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
- B60R2022/4808—Sensing means arrangements therefor
- B60R2022/4858—Sensing means arrangements therefor for sensing pressure on seat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
- B60R2022/4866—Displaying or indicating arrangements thereof
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
The invention discloses a kind of seat belt apparatus, belt reminder method and vehicle, the seat belt apparatus is arranged on the seat of vehicle, and the seat belt apparatus includes：Safety belt；Module is furled, for furling safety belt；Signal output module, for the retracting amount for the safety belt being reflected in by output pulse signal in safety belt coiling process；And processing module is used for：When the acceleration of vehicle is more than predetermined acceleration threshold value, control retracting module furls the safety belt, and the number for the first pulse signal that signal output module is exported in preset time period is obtained, judge whether the number of the first pulse signal is less than default first pulse number threshold value；When the number of the first pulse signal is less than the first pulse number threshold value, it is not prompting to send safety belt.Can detect automotive occupant whether fastening safety belt, and can identify false fastening safety belt, to send prompting in non-fastening safety belt, improve the security of vehicle.
Description
Technical field
The present invention relates to field of vehicle safety, more particularly to a kind of seat belt apparatus, belt reminder method
And vehicle.
Background technology
Safety belt is the part of Vehicle security system extremely key.Normally run at high speed process in vehicle
In, due to traffic and the change of road conditions, such as brake, turning, or the acceleration that road surface change is produced,
Can rock occupant's sitting posture.If without belt restraints, when accelerating larger, occupant and in-car can be made
Part collides.In extreme circumstances, such as occurs the collision of vehicle, if in no safety belt about
Beam, occupant can be because of very big acceleration, and is spilled over outside car.When air bag is ejected and is deployed, because occupant by
Acceleration seat appearance reach, with the balloon contacts not being fully deployed, superposition is hit, it will by more serious
Injury.Therefore, rapid is taken, it is necessary to fasten seat belts.
At present major part vehicle occupant, such as driver and the passenger side occupant, seat on be configured with safety belt
Device, the seat belt apparatus includes：Safety belt, safety belt lock catch and prompting module etc..When occupant due to
Awareness of safety is not enough, it is believed that safety belt constraint feels uncomfortable, may select safety belt buckling free, reminds
Module has passenger riding on seat is detected, but when not fastening the safety belt, it is not to carry that can send safety belt
Show.
But, some occupants can use false safety belt dead bolt insertion safety belt lock catch, or by safety belt from
Body back is bypassed, and is inserted directly into safety belt lock catch, to cheat prompting module.In this regard, traditional safety
Belting possibly can not detect this deceptive practices, and it is not prompting that will not produce and send safety belt, is led
Cause the security of vehicle relatively low.
The content of the invention
The present invention provides seat belt apparatus, belt reminder method and vehicle, for detecting that automotive occupant is
No fastening safety belt, is not prompting to send safety belt in non-fastening safety belt, improves the safety of vehicle
Property.
To achieve these goals, as one aspect of the present invention, there is provided a kind of seat belt apparatus, institute
State seat belt apparatus to be arranged on the seat of vehicle, the seat belt apparatus includes：Safety belt；Furl mould
Block, for furling the safety belt；Signal output module, for being reflected in institute by output pulse signal
State the retracting amount of the safety belt in safety belt coiling process；And processing module, it is used for：
When the acceleration of vehicle is more than predetermined acceleration threshold value, the retracting module is controlled to furl the peace
Full band, and obtain for the first pulse signal that the signal output module is exported in preset time period
Number, the number of first pulse signal and the retracting amount positive correlation of the safety belt；
Judge whether the number of first pulse signal is less than default first pulse number threshold value；
When the number of first pulse signal is less than the first pulse number threshold value, safety belt is sent
It is not prompting.
Optionally, the processing module, is additionally operable to：
When having occupant on the seat and safety belt lock catch is connected with safety belt dead bolt, the retracting is controlled
Module furls the safety belt to default restriction retracting amount according to pre-set velocity；
Obtain during furling the safety belt according to pre-set velocity, the signal output module output
The number of second pulse signal；
Judge whether the number of second pulse signal is less than default second pulse number threshold value；
When the number of second pulse signal is less than the second pulse number threshold value, safety belt is sent
It is not prompting.
Optionally, the retracting module includes：Motor, transmission component, clutch component and belt reel,
The transmission component is connected with the motor, clutch component respectively, the clutch component and the volume
Band cylinder connection, the motor is by driving the transmission component to drive the clutch component to rotate, to drive
The belt reel is rotated, and the belt reel is furled the safety belt.
Optionally, the signal output module includes：Multi-pole magnet-ring and magnetic field sensor,
The multi-pole magnet-ring is arranged on the outside of the clutch component, can coaxially be revolved with the clutch component
Turn；
The magnetic field sensor is arranged on the surface of the multistage magnet ring, when the clutch component rotates,
The magnetic field sensor can gather the magnetic signal produced by pole change when the multistage magnet ring rotates,
And the magnetic signal is converted into output of pulse signal.
Optionally, the magnetic field sensor is Hall sensor.
Optionally, the transmission component includes：With the drive gear of the motor connection, and with it is described
The travelling gear of drive gear engagement.
Optionally, the clutch component is connected with the travelling gear by gear；
Angled-lift splits is provided between the clutch component and the belt reel, when the motor is by driving
State transmission component drive the clutch component along the first preset direction rotate when, the clutch component passes through institute
State angled-lift splits and connect the belt reel, and drive the belt reel to rotate to roll up along first preset direction
Receive the safety belt；When the motor is by driving the transmission component to drive the clutch component along second
When preset direction rotates, the clutch component is separated with the belt reel.
As another aspect of the present invention there is provided a kind of belt reminder method, methods described includes：
When the acceleration of vehicle is more than predetermined acceleration threshold value, control retracting module furls the safety
Band, and the number for the first pulse signal that signal output module is exported in preset time period is obtained, it is described
The number of first pulse signal and the retracting amount positive correlation of the safety belt；
Judge whether the number of first pulse signal is less than default first pulse number threshold value；
When the number of first pulse signal is less than the first pulse number threshold value, safety belt is sent
It is not prompting.
Optionally, methods described also includes：
When having occupant on the seat and safety belt lock catch is connected with safety belt dead bolt, the retracting is controlled
Module furls the safety belt to default restriction retracting amount according to pre-set velocity；
Obtain during furling the safety belt according to pre-set velocity, the signal output module output
The number of second pulse signal；
Judge whether the number of second pulse signal is less than default second pulse number threshold value；
When the number of second pulse signal is less than the second pulse number threshold value, safety belt is sent
It is not prompting.
As it is still another aspect of the present invention to provide a kind of vehicle, the vehicle includes：According to the present invention
The seat belt apparatus provided.
Include safety belt in seat belt apparatus provided by the present invention, furl module, signal output module
And processing module, processing module is when the acceleration of vehicle is more than predetermined acceleration threshold value, and control is described
Furl module and furl the safety belt, and obtain what the signal output module was exported in preset time period
The number of first pulse signal, the number of first pulse signal and the retracting amount positive of the safety belt
Close, i.e. the number retracting amounts for representing the safety belt of the first pulse signal higher more, and also just explanation is pacified
Full band is tighter, due to retracting amount that in vehicle travel process, safety belt is worn by occupant with not by occupant
Retracting amount has a long way to go when wearing, then accordingly by this compare the number of the first pulse signal with it is default
First pulse number threshold value can effectively screen out whether occupant fastens the safety belt, therefore judge first arteries and veins
Whether the number for rushing signal is less than default first pulse number threshold value；As of first pulse signal
When number is less than the first pulse number threshold value, it is not prompting to send safety belt.So as to detect vehicle
Occupant whether fastening safety belt, and false fastening safety belt can be identified, with non-fastening safety belt
It is not prompting to send safety belt, improves the security of vehicle.
Other features and advantages of the present invention will be described in detail in subsequent embodiment part.
Brief description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute a part for specification, with
Following embodiment is used to explain the present invention together, but is not construed as limiting the invention.
In accompanying drawing：
Fig. 1 is a kind of block diagram of seat belt apparatus provided in an embodiment of the present invention；
Fig. 2 is a kind of structural representation of seat belt apparatus provided in an embodiment of the present invention；
Fig. 3 is a kind of circuit control schematic diagram of seat belt apparatus provided in an embodiment of the present invention；
Fig. 4 is a kind of belt reminder method flow schematic diagram provided in an embodiment of the present invention；
Fig. 5 is another belt reminder method flow schematic diagram provided in an embodiment of the present invention.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that
Embodiment described herein is merely to illustrate and explain the present invention, and is not limited to this hair
It is bright.
The embodiment of the present invention provides a kind of seat belt apparatus 10, as shown in figure 1, the seat belt apparatus
10 are arranged on the seat of vehicle, and the seat belt apparatus 10 includes：Safety belt 101, described device
10 also include：Module 102 is furled, for furling the safety belt；Signal output module 103, is used for
The retracting amount of the safety belt in the safety belt coiling process is reflected in by output pulse signal；
Processing module 104, is used for：
(such as when bringing to a halt), the volume is controlled when the acceleration of vehicle is more than predetermined acceleration threshold value
Receive module 102 and furl the safety belt, and obtain the signal output module 103 in preset time period
The number of first pulse signal of output, the number of first pulse signal and the retracting of the safety belt
Measure positive correlation；The preset time period can be more than predetermined acceleration threshold value from the acceleration for detecting vehicle
Up to the safety belt stall (can be understood as safety belt retracting it is motionless, or safety belt retracting
To a certain retracting amount) untill period.
Judge whether the number of first pulse signal is less than default first pulse number threshold value；
When the number of first pulse signal is less than the first pulse number threshold value, safety belt is sent
It is not prompting.
In embodiments of the present invention, can be by inquiring about body electronics systems stabilisation (English：Electronic
Stability Program；Referred to as：ESP the acceleration condition of vehicle) is obtained, so as to detect adding for vehicle
Whether speed state is more than predetermined acceleration threshold value.
Further, can also detect whether fastening safety belt when being not detected by acceleration, example can
With by there is occupant on seat is detected and when safety belt lock catch is connected with safety belt dead bolt, to safety belt
Carry out pretension to detect whether genuine fastening safety belt, specifically, the processing module 104, Ke Yiyong
In：
When having occupant on the seat and safety belt lock catch is connected with safety belt dead bolt, the retracting is controlled
Module 102 furls the safety belt to default restriction retracting amount according to pre-set velocity；
Obtain during furling the safety belt according to pre-set velocity, the signal output module 103 is defeated
The number of the second pulse signal gone out；
Judge whether the number of second pulse signal is less than default second pulse number threshold value；
When the number of second pulse signal is less than the second pulse number threshold value, safety belt is sent
It is not prompting.
Optionally, as shown in Fig. 2 the retracting module 102 includes：Motor 1021, transmission component
1022nd, clutch component 1023 and belt reel 1024.
The transmission component 1022 is connected with the motor 1021, clutch component 1023 respectively, it is described from
Seaming element 1023 is connected with the belt reel 1024, and the motor 1021 is by driving the transmission group
Part 1022 drives the clutch component 1023 to rotate, and to drive the belt reel 1024 to rotate, makes institute
State belt reel 1024 and furl the safety belt 101.Example, the transmission component 1022 can include：
The drive gear 1022a being connected with the motor 1021, and engaged with the drive gear 1022a
Travelling gear 1022b.The clutch component 1023 can be connected with the travelling gear 1022b by gear
Connect.Angled-lift splits is provided between the clutch component 1023 and the belt reel 1024, when the motor
1021 by driving the transmission component 1022 to drive the clutch component 1023 to be revolved along the first preset direction
When turning (rotating forward), the clutch component 1023 connects the belt reel 1024 by the angled-lift splits,
And drive the belt reel 1024 to rotate to furl the safety belt 101 along first preset direction；When
The motor 1021 is by driving the transmission component 1022 to drive the clutch component 1023 along second
During preset direction rotation (reversion), the clutch component 1023 is separated with the belt reel 1024.
It should be noted that sending after safety belt is not prompting, if detecting the acceleration of vehicle again
Less than predetermined acceleration threshold value, the motor 1021 is described by driving the transmission component 1022 to drive
Clutch component 1023 rotates along the second preset direction, so that the clutch component 1023 and the belt reel
1024 separation.And, there is occupant on the seat, and detect safety belt lock catch and safety belt lock
(can reach that default limit is rolled up when the safety belt 101 has been furled to stall after tongue connection
Receipts amount, or furl motionless), the motor 1021 is by driving the transmission component 1022 to drive
The clutch component 1023 rotates along the second preset direction, so that the clutch component 1023 and the volume
Band cylinder 1024 is separated.
Optionally, as shown in Fig. 2 the signal output module 103 includes：
Multi-pole magnet-ring 1031 and magnetic field sensor 1032, the multi-pole magnet-ring 1031 are arranged on the clutch
The outside of component 1023, can with the coaxial rotating of clutch component 1023, in embodiments of the present invention,
Annular groove can be provided with the clutch component 1023, the center of circle of the annular groove can be in clutch component
On 1023 axis, the multi-pole magnet-ring 1031 can be embedded in the annular groove, on the one hand ensure many
Effective fixation of level magnet ring 1031, on the other hand allows multi-pole magnet-ring 1031 and the clutch component
1023 coaxial rotatings.
The magnetic field sensor 1032 is arranged on the surface of the multistage magnet ring 1031, with multistage magnet ring
1031 have small distance, for example, the distance within 2 millimeters, when the clutch component rotates,
The magnetic field sensor 1032 can be gathered produced by pole change when the multistage magnet ring 1031 rotates
Magnetic signal, and the magnetic signal is converted into output of pulse signal.The magnetic field sensor 1032 have to
Few one, the magnetic field sensor 1032 can be Hall sensor.The magnetic field sensor of this in practical application
1032 can have two, as shown in Fig. 2 respectively Hall sensor 1032a and Hall sensor 1032b.
Hall sensor is to utilize Hall effect, and magnetic field intensity is converted to the sensor of electric signal.
The embodiment of the present invention assumes that processing module 104 is that microprocessor (MCU) 1041, Fig. 3 is this
The circuit control schematic diagram for the seat belt apparatus 10 that inventive embodiments are provided, as shown in figure 3, Hall is passed
Sensor 1032a and Hall sensor 1032b be used for gather multi-pole magnet-ring rotation when pole change produced by
Magnetic signal (also referred to as rotary magnetic ring signal), and the magnetic signal is converted into output of pulse signal.Power supply
Include with communication module 301：Photovoltaic conversion module 3011 and communication module 3012, photovoltaic conversion module
3011, for the voltage conversion that inputs car power supply source 302 for needed for microprocessor 1041 voltage；It is logical
News module 3012 is used to connect controller local area network's (English：Controller Area Network；Letter
Claim：CAN) bus 303, differential number that CAN is transmitted is modulated to microprocessor 1041 and supported
Communication level signal, power supply and communication module 301 pass through power supply and communication transmission line 304 and microprocessor
Device 1041 is connected.Reversed polarity protection circuit 305, is that motor drive module 306 provides power supply, and be furnished with
Bulky capacitor, suppresses Electro Magnetic Compatibility (English：Electro Magnetic Compatibility；Referred to as：EMC)
Conduction interference.Motor drive module 306 is also devised with overcurrent-overvoltage detection and defencive function, prevents because of electricity
Machine stall etc. is abnormal and damages system, and the motor drive module 306 is used for (the i.e. Fig. 2 of motor 307
In motor 1021).
In summary, seat belt apparatus provided in an embodiment of the present invention is pre- by being more than in the acceleration of vehicle
If during acceleration rate threshold, controlling the retracting module to furl the safety belt, and obtain the signal output
The number for the first pulse signal that module is exported in preset time period, due to the number of the first pulse signal
The retracting amounts for representing the safety belt higher more, and also just explanation safety belt is tighter, and in vehicle traveling
During, retracting amount has a long way to go when the retracting amount that safety belt is worn by occupant by occupant with not worn, then
Can have with default first pulse number threshold value accordingly by the number for comparing the first pulse signal
Screen out whether occupant fastens the safety belt to effect, therefore judge whether the number of first pulse signal is less than in advance
If the first pulse number threshold value；When the number of first pulse signal is less than first pulse number
During threshold value, it is not prompting to send safety belt.So as to detect automotive occupant whether fastening safety belt, and
And the deceptive practices of false fastening safety belt can be identified, to send safety belt not in non-fastening safety belt
System's prompting, improves the security of vehicle.
The embodiment of the present invention provides a kind of belt reminder method, as shown in figure 4, including：
Step 401, vehicle acceleration be more than predetermined acceleration threshold value when, control retracting module retracting
The safety belt, and obtain for the first pulse signal that signal output module is exported in preset time period
Number, the number of first pulse signal and the retracting amount positive correlation of the safety belt；
Step 402, judge first pulse signal number whether be less than default first pulse number
Threshold value；
Step 403, when first pulse signal number be less than the first pulse number threshold value when,
It is not prompting to send safety belt.
The embodiment of the present invention provides another belt reminder method, as shown in figure 5, this method can be by
The processing module 104 of seat belt apparatus provided in an embodiment of the present invention is performed, and this method includes：
Whether there is occupant in step 501, detection seat.When there is occupant on seat, step 502 is performed,
When there is no occupant on seat, step 501 is performed.
After seat belt apparatus electrifying startup, vehicle can be determined by inquiring about the state of occupancy sensor
Seat on whether have occupant.
The state of step 502, detection safety belt dead bolt and safety belt lock catch.When safety belt dead bolt and safety
Belt lock catch is connected, and performs step 503, when safety belt dead bolt and safety belt lock catch are not connected, performs step
502。
The state of safety belt dead bolt and safety belt lock catch can include buckling state and not buckle state.Safety
One end of band is provided with safety belt lock catch, and the lock position can be provided with detection sensor, for detecting
Safety belt lock catch is inserted with the presence or absence of safety belt dead bolt, generally there is safety belt dead bolt insertion safety belt lock
During button, the detection sensor sends corresponding indication signal to processing module, for indicating safety belt dead bolt
It is in safety belt lock catch and buckles state.
Step 503, according to pre-set velocity the safety belt is furled to default restriction retracting amount.Perform step
Rapid 504.
In the embodiment of the present invention, pre-set velocity is set as the case may be, and its speed is slower, with not
Premised on the wear comfort for influenceing passenger.Limit retracting amount be also to set as the case may be, its
Length is come accommodation, not influence the wear comfort of passenger before according to the build of passenger
Carry.For example, the corresponding preset length of children is less than corresponding preset length of being grown up.In retracting safety belt extremely
During default restriction retracting amount, motor can automatic stall, retracting action stopping.
During step 504, acquisition furl safety belt according to pre-set velocity, the signal output module is defeated
The number of the second pulse signal gone out.
When the structure of seat belt apparatus is as shown in Figure 2, the process of safety belt is being furled according to pre-set velocity
In, because multi-pole magnet-ring is in rotary course, its magnetic pole is being continually changing, and correspondingly produces multiple magnetic letters
Number, magnetic signal is converted into multiple second pulse signals by Hall sensor.That Hall sensor is produced
Two pulse signal accumulated counts, during can obtaining according to pre-set velocity retracting safety belt, signal is defeated
Go out the number of the second pulse signal of module output.
Step 505, judge the second pulse signal number whether be less than default second pulse number threshold value.
When the number of the second pulse signal is less than default second pulse number threshold value, step 506 is performed.When
The number of two pulse signals is not less than default second pulse number threshold value, performs step 507.
In embodiments of the present invention, the second pulse number threshold value can have occupant and peace on the seat in advance
Full belt lock catch is connected with safety belt dead bolt, and the scene of the actually non-wear safety belt of occupant lower is determined
Number.
In actual applications, there is occupant on the seat and safety belt lock catch is connected with safety belt dead bolt, and
Actually under the scene of occupant's wear safety belt, the number of the second pulse signal is typically hundreds and thousands of times,
And if occupant does not have wear safety belt, the number of the second pulse is typically that within ten, both differences are bright
It is aobvious.
Step 506, send safety belt be not prompting.
When the number of the second pulse signal is less than default second pulse number threshold value, illustrate safety belt not
Effectively protect occupant.Even if safety belt lock catch is connected with safety belt dead bolt falls within false safety belt setting fastening
Situation, therefore, belt reminder method provided in an embodiment of the present invention can effectively recognize false safety belt system
The situation of button.
In embodiments of the present invention, it is not prompting that processing module can send safety belt by CAN,
The prompting (such as alerting tone, or voice message etc.) can be played in the form of sound, can also with word or
Image format is shown on the display screen of vehicle.
Whether step 507, the acceleration condition of detection vehicle are more than predetermined acceleration threshold value.When vehicle
Acceleration be more than predetermined acceleration threshold value when, perform step 508, when the acceleration of vehicle be not more than it is default
During acceleration rate threshold, step 507 is performed.
In embodiments of the present invention, adding for vehicle can be obtained by inquiring about body electronics systems stabilisation ESP
Speed state, so as to detect whether the acceleration condition of vehicle is more than predetermined acceleration threshold value.
The first pulse signal that step 508, acquisition signal output module are exported in preset time period.Hold
Row step 509.The preset time period can be more than predetermined acceleration threshold from the acceleration for detecting vehicle
Value up to the safety belt stall (can be understood as safety belt retracting it is motionless, or safety belt volume
Have received a certain retracting amount, the retracting amount can from during foregoing pretension to limit retracting amount different) as
Period only.
The signal output module is used for safety in the coiling process by output pulse signal reflection safety belt
The elastic change of band.
Step 509, judge the first pulse signal number whether be less than default first pulse number threshold value.
When the number of the first pulse signal is less than default first pulse number threshold value, step 506 is performed, when the
The number of one pulse signal is not less than default first pulse number threshold value, performs step 508.
In embodiments of the present invention, the first pulse number threshold value can be in advance in vehicle travel process,
There is occupant on seat and safety belt lock catch is connected with safety belt dead bolt, and the actually non-safe wearing of occupant
Number determined by under the scene of band.
In vehicle travel process, in brake, acceleration can be detected by ESP and exceed default acceleration
Threshold value is spent, so as to can trigger on furling tube retracting safety belt, the clutch component being now connected with furling tube
Multistage magnet ring synchronous rotary, Hall sensor detects the first pulse signal, and Continuous accumulation is counted.In reality
In the application of border, the first pulse signal number determined by under the scene of occupant's wear safety belt is typically tens of
More than secondary, and if occupant does not have wear safety belt, the number of the first pulse is typically (can within ten
Be to understand, under the scene of occupant's wear safety belt, safety belt generally will not setting fastening very tight, therefore volume
Time receiving retracting amount is changed greatly, and during occupant's false fastening safety belt the usual setting fastening of safety belt it is very tight, because
Retracting amount varies less during this retracting), both differences are obvious.Example, the first pulse number threshold value
It could be arranged to 5 or 10.
When the number of the first pulse signal in preset time period is less than the first pulse number threshold value, illustrate safety
Band does not protect occupant effectively.Even if safety belt lock catch is connected with safety belt dead bolt and falls within false safety belt
The situation of setting fastening, therefore, belt reminder method provided in an embodiment of the present invention can be further effective
The situation of the false safety belt setting fastening of identification.
In embodiments of the present invention, it is not prompting that processing module can send safety belt by CAN,
The prompting (such as alerting tone, voice message lamp) can be played in the form of sound, can also be with word or figure
As form is shown on the display screen of vehicle.
In summary, belt reminder method provided in an embodiment of the present invention is big by the acceleration in vehicle
When predetermined acceleration threshold value, the safety belt is furled, and obtain first exported in preset time period
The number of pulse signal, the retracting amount of the safety belt is represented more because the number of the first pulse signal
Height, also just explanation safety belt is tighter, and in vehicle travel process, the volume that safety belt is worn by occupant
Retracting amount has a long way to go when receipts amount by occupant with not worn, then compares the first pulse signal accordingly by this
Number can effectively screen out whether occupant fastens the safety belt with default first pulse number threshold value, therefore
Judge whether the number of first pulse signal is less than default first pulse number threshold value；When described
When the number of one pulse signal is less than the first pulse number threshold value, it is not prompting to send safety belt.From
And can detect automotive occupant whether fastening safety belt, and the deception of false fastening safety belt can be identified
Behavior, is not prompting to send safety belt in non-fastening safety belt, improves the security of vehicle.
The embodiment of the present invention also provides a kind of vehicle, including：The safety belt dress that the embodiment of the present invention is provided
Put 10.The vehicle can also include the modules in the circuit control schematic diagram shown in Fig. 3.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, still, the present invention is not limited
Detail in above-mentioned embodiment, can be to the present invention in the range of the technology design of the present invention
Technical scheme carry out a variety of simple variants, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique described in above-mentioned embodiment is special
Levy, in the case of reconcilable, can be combined by any suitable means, in order to avoid need not
The repetition wanted, the present invention no longer separately illustrates to various possible combinations.
In addition, various embodiments of the present invention can be combined randomly, as long as its
Without prejudice to the thought of the present invention, it should equally be considered as content disclosed in this invention.
Claims (10)
1. a kind of seat belt apparatus, it is characterised in that the seat belt apparatus is arranged on the seat of vehicle
On, the seat belt apparatus includes：Safety belt；Module is furled, for furling the safety belt；Signal
Output module, for the safety being reflected in by output pulse signal in the safety belt coiling process
The retracting amount of band；And processing module, it is used for：
When the acceleration of vehicle is more than predetermined acceleration threshold value, the retracting module is controlled to furl the peace
Full band, and obtain for the first pulse signal that the signal output module is exported in preset time period
Number, the number of first pulse signal and the retracting amount positive correlation of the safety belt；
Judge whether the number of first pulse signal is less than default first pulse number threshold value；
When the number of first pulse signal is less than the first pulse number threshold value, safety belt is sent
It is not prompting.
2. seat belt apparatus according to claim 1, it is characterised in that the processing module,
It is additionally operable to：
When having occupant on the seat and safety belt lock catch is connected with safety belt dead bolt, the retracting is controlled
Module furls the safety belt to default restriction retracting amount according to pre-set velocity；
Obtain during furling the safety belt according to pre-set velocity, the signal output module output
The number of second pulse signal；
Judge whether the number of second pulse signal is less than default second pulse number threshold value；
When the number of second pulse signal is less than the second pulse number threshold value, safety belt is sent
It is not prompting.
3. seat belt apparatus according to claim 1 or 2, it is characterised in that the retracting mould
Block includes：Motor, transmission component, clutch component and belt reel,
The transmission component is connected with the motor, clutch component respectively, the clutch component and the volume
Band cylinder connection, the motor is by driving the transmission component to drive the clutch component to rotate, to drive
The belt reel is rotated, and the belt reel is furled the safety belt.
4. seat belt apparatus according to claim 3, it is characterised in that the signal output mould
Block includes：Multi-pole magnet-ring and magnetic field sensor,
The multi-pole magnet-ring is arranged on the outside of the clutch component, can coaxially be revolved with the clutch component
Turn；
The magnetic field sensor is arranged on the surface of the multistage magnet ring, when the clutch component rotates,
The magnetic field sensor can gather the magnetic signal produced by pole change when the multistage magnet ring rotates,
And the magnetic signal is converted into output of pulse signal.
5. seat belt apparatus according to claim 4, it is characterised in that the magnetic field sensor
For Hall sensor.
6. seat belt apparatus according to claim 4, it is characterised in that the transmission component bag
Include：With the drive gear of the motor connection, and the travelling gear engaged with the drive gear.
7. seat belt apparatus according to claim 6, it is characterised in that the clutch component with
The travelling gear is connected by gear；
Angled-lift splits is provided between the clutch component and the belt reel, when the motor is by driving
State transmission component drive the clutch component along the first preset direction rotate when, the clutch component passes through institute
State angled-lift splits and connect the belt reel, and drive the belt reel to rotate to roll up along first preset direction
Receive the safety belt；When the motor is by driving the transmission component to drive the clutch component along second
When preset direction rotates, the clutch component is separated with the belt reel.
8. a kind of belt reminder method, it is characterised in that methods described includes：
When the acceleration of vehicle is more than predetermined acceleration threshold value, control retracting module furls the safety
Band, and the number for the first pulse signal that signal output module is exported in preset time period is obtained, it is described
The number of first pulse signal and the retracting amount positive correlation of the safety belt；
Judge whether the number of first pulse signal is less than default first pulse number threshold value；
When the number of first pulse signal is less than the first pulse number threshold value, safety belt is sent
It is not prompting.
9. method according to claim 8, it is characterised in that methods described also includes：
When having occupant on the seat and safety belt lock catch is connected with safety belt dead bolt, the retracting is controlled
Module furls the safety belt to default restriction retracting amount according to pre-set velocity；
Obtain during furling the safety belt according to pre-set velocity, the signal output module output
The number of second pulse signal；
Judge whether the number of second pulse signal is less than default second pulse number threshold value；
When the number of second pulse signal is less than the second pulse number threshold value, safety belt is sent
It is not prompting.
10. a kind of vehicle, it is characterised in that the vehicle includes：Claim 1 to 7 is any described
Seat belt apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610200721.6A CN107284404B (en) | 2016-03-31 | 2016-03-31 | Seat belt device, seat belt prompting method, and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610200721.6A CN107284404B (en) | 2016-03-31 | 2016-03-31 | Seat belt device, seat belt prompting method, and vehicle |
Publications (2)
| Publication Number | Publication Date |
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| CN107284404A true CN107284404A (en) | 2017-10-24 |
| CN107284404B CN107284404B (en) | 2019-12-10 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610200721.6A Active CN107284404B (en) | 2016-03-31 | 2016-03-31 | Seat belt device, seat belt prompting method, and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107284404B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108437928A (en) * | 2018-03-15 | 2018-08-24 | 上海艾铭思汽车控制系统有限公司 | The control system and control method of safety belt |
| EP3524479A1 (en) * | 2018-02-07 | 2019-08-14 | Autoliv Development AB | Seat belt retractor for a motor vehicle and method for determining when the belt is buckled |
| CN110217188A (en) * | 2019-07-02 | 2019-09-10 | 广州小鹏汽车科技有限公司 | A kind of exchange method, device and vehicle |
| CN110435587A (en) * | 2019-07-08 | 2019-11-12 | 宁波诚泰汽车部件有限公司 | A kind of automobile safety-belt untying-state system for prompting and method |
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| Publication number | Publication date |
|---|---|
| CN107284404B (en) | 2019-12-10 |
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