CN108437928A - The control system and control method of safety belt - Google Patents
The control system and control method of safety belt Download PDFInfo
- Publication number
- CN108437928A CN108437928A CN201810213697.9A CN201810213697A CN108437928A CN 108437928 A CN108437928 A CN 108437928A CN 201810213697 A CN201810213697 A CN 201810213697A CN 108437928 A CN108437928 A CN 108437928A
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- Prior art keywords
- safety belt
- control
- motor
- control module
- automobile
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Classifications
-
- 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
- B60R22/34—Belt retractors, e.g. reels
- B60R22/44—Belt retractors, e.g. reels with means for reducing belt tension during use under normal conditions
-
- 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
- B60R22/34—Belt retractors, e.g. reels
- B60R22/46—Reels with means to tension the belt in an emergency by forced winding up
-
- 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
- B60R22/34—Belt retractors, e.g. reels
- B60R22/44—Belt retractors, e.g. reels with means for reducing belt tension during use under normal conditions
- B60R2022/4473—Belt retractors, e.g. reels with means for reducing belt tension during use under normal conditions using an electric retraction device
-
- 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
- B60R22/34—Belt retractors, e.g. reels
- B60R22/46—Reels with means to tension the belt in an emergency by forced winding up
- B60R2022/4666—Reels with means to tension the belt in an emergency by forced winding up characterised by electric actuators
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
The invention discloses a kind of control system of safety belt and control methods, including：Safety belt, safety belt control module and safety belt drive module；The safety belt control module, it is electrically connected with automobile control module, for receiving driving information, and according to the driving information, control signal is sent to the safety belt drive module, to furl or discharge the safety belt, the safety belt drive module is electrically connected with the safety belt control module.Technical solution provided in an embodiment of the present invention, the control module of safety belt obtain the driving information of automobile from automobile control module, and safety belt is furled or discharged according to the driving information of automobile, simplify hardware circuit, reduce power consumption and cost.
Description
Technical field
The present embodiments relate to the control systems and control method of automotive field more particularly to a kind of safety belt.
Background technology
The control system of car belt is the driving information according to automobile under normal circumstances, to tighten or discharge safety
Band, to ensure the safety of the passenger on automotive seat.
The sensors such as the control system of vehicle safety belt generally included gravity sensor, displacement sensor at present, to obtain
The driving information of automobile, to control the safety belt of automobile, so that the hardware cost of the control system of safety belt is high.
Invention content
In view of this, an embodiment of the present invention provides a kind of control system of safety belt and control method, existing skill is compared
The control system of safety belt in art, simplifies hardware circuit, reduces power consumption and cost.
In a first aspect, an embodiment of the present invention provides a kind of control systems of safety belt, including：
Safety belt, safety belt control module and safety belt drive module；
The safety belt control module, is electrically connected with automobile control module, for receiving driving information, and according to institute
Driving information is stated, control signal is sent to the safety belt drive module, it is described to furl or discharge the safety belt
Safety belt drive module is electrically connected with the safety belt control module.
Optionally, the safety belt drive module includes motor, shaft coupling and roll-up spindle；
The control terminal of the motor is electrically connected with the safety belt control module, and the safety belt control module is to described
The control terminal of motor sends control signal, rotates forward or inverts to control the motor；
The motor is mechanically connected with the shaft coupling, and the roll-up spindle is mechanically connected with the shaft coupling, the electricity
Motivation drives the roll-up spindle clockwise or counterclockwise by the shaft coupling, to furl or discharge the safety belt,
The safety belt is wrapped in the roll-up spindle.
Optionally, the input terminal of the automobile control module is electrically connected at least one sensor that vehicle body is arranged, and is used for
Obtain the driving information；
The driving information includes the numerical value of the speed of the automobile, the numerical value of transverse acceleration, longitudinal acceleration
Numerical value, pre-impact state, run-off-road state, one or more in braking state and turn condition.
Optionally, the safety belt control module includes temperature sensing unit and processing unit, for believing environment temperature
Breath is sent to the processing unit, and the processing unit is sent out according to the ambient temperature information to the control terminal of the motor
Control signal is sent, to control the output torque of the motor, the signal output end of the temperature sensing unit and the processing
The signal input part of unit is electrically connected, and the control signal output of the processing unit and the control terminal of the motor are electrically connected
It connects.
Second aspect, an embodiment of the present invention provides a kind of control methods of safety belt, based on the peace described in first aspect
The control system of full band, including：
Automobile control module obtains driving information, is sent to safety belt control module, the safety belt control module,
It is electrically connected with the automobile control module；
The safety belt control module sends control signal according to the driving information, to safety belt drive module,
To furl or discharge safety belt, the safety belt drive module is electrically connected with the safety belt control module.
Optionally, the safety belt control module sends to safety belt drive module and controls according to the driving information
Signal processed is specifically included with furling or discharging safety belt：
The safety belt control module sends control signal to the control terminal of the motor, to control the motor just
Turn or reversion, the control terminal of the motor are electrically connected with the safety belt control module；
The motor drives roll-up spindle clockwise or counterclockwise by shaft coupling, to furl or discharge the peace
Full band, the output shaft of the motor are mechanically coupled with the shaft coupling, and the roll-up spindle is mechanically coupled with the shaft coupling, institute
Safety belt is stated to be wrapped in the roll-up spindle.
Optionally, the driving information includes the numerical value of the speed of the automobile, the numerical value of transverse acceleration, longitudinal direction
It is one or more in the numerical value of acceleration, pre-impact state, run-off-road state, braking state and turn condition.
Optionally, when the numerical value that the safety belt control module gets the car speed is greater than or equal to first threshold
When, the safety belt control module sends gap to the control terminal of the motor and eliminates mode control signal, described in control
Motor is rotated forward to furl the safety belt, and the safety belt is made to be in tightening state；
After so that the safety belt is in the first preset time period of tightening state, the safety belt control module is to described
The control terminal of motor sends clutch engagement and releases control signal to control the motor reversion, to discharge the safety
Band makes the safety belt be in relaxed state.
Optionally, when the safety belt control module get the automobile be in run-off-road state, turn condition or
When person's braking state, the safety belt control module is described to control to the control terminal of motor transmission warning control signal
Motor rotates and reverse interval and carries out, and to furl or discharge the safety belt, makes the safety belt in tightening state and pine
It is switched in relaxation state；
After so that the safety belt is switched over the second preset time period in tightening state and relaxed state, the peace
Clutch engagement releasing control signal to be sent to the control terminal of the motor anti-to control the motor with control module entirely
Turn, to discharge the safety belt, the safety belt is made to be in relaxed state.
Optionally, when the numerical value for the transverse acceleration that the safety belt control module gets the automobile is greater than or equal to
When the numerical value of the longitudinal acceleration of second threshold or the automobile is greater than or equal to third threshold value, the safety belt control module
Pre- safe control signal is sent to the control terminal of the motor to rotate forward to furl the safety belt to control the motor, is made
The safety belt tightening；
After so that the safety belt is in tightening state third preset time period, the safety belt control module control to
The control terminal of the motor sends clutch engagement and releases control signal to control the motor reversion, to discharge the peace
Full band makes the safety belt be in relaxed state.
Optionally, it is under pre-impact state when the safety belt control module gets the automobile, the safety belt
It is described to furl that control module controls the motor rotating forward to the control terminal of motor transmission pre-impact control signal
Safety belt makes the safety belt tighten；
After so that the safety belt is in the 4th preset time period of tightening state, the safety belt control module is to described
The control terminal of motor sends clutch engagement and releases control signal to control the motor reversion, to discharge the safety
Band makes the safety belt be in relaxed state.
Optionally, temperature sensing unit obtains ambient temperature information, and the ambient temperature information is sent to processing list
Member, the processing unit sends control signal according to the ambient temperature information, to the control terminal of the motor, to control
The output torque of motor is stated, the safety belt control module includes the temperature sensing unit and processing unit, the temperature
The signal output end of sensing unit is electrically connected with the signal input part of the processing unit, and the control signal of the processing unit is defeated
Outlet is electrically connected with the control terminal of the motor.An embodiment of the present invention provides a kind of control system of safety belt and controlling parties
Method, the control module of safety belt obtains the driving information of automobile from automobile control module, and is furled according to the driving information of automobile
Or the release safety belt, the control module for reducing safety belt in the prior art are used for acquiring the sensing of driving information
Device simplifies hardware circuit, reduces power consumption and cost.
Description of the drawings
Fig. 1 is a kind of structure diagram of the control system for safety belt that the embodiment of the present invention one provides；
Fig. 2 is the structure diagram of the control system for another safety belt that the embodiment of the present invention one provides；
Fig. 3 is a kind of flow diagram of the control method of safety belt provided by Embodiment 2 of the present invention；
Fig. 4 is a kind of flow diagram of the control method for safety belt that the embodiment of the present invention three provides；
Fig. 5 is a kind of flow diagram of the control method for safety belt that the embodiment of the present invention four provides；
Fig. 6 is a kind of flow diagram of the control method for safety belt that the embodiment of the present invention five provides；
Fig. 7 is a kind of flow diagram of the control method for safety belt that the embodiment of the present invention six provides；
Fig. 8 is a kind of flow diagram of the control method for safety belt that the embodiment of the present invention seven provides.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Embodiment one
Fig. 1 is a kind of structure diagram of the control system for safety belt that the embodiment of the present invention one provides, referring to Fig. 1, the peace
The control system of band includes entirely：Safety belt, safety belt control module and safety belt drive module；Safety belt control module 100, with
Automobile control module 200 is electrically connected, and for receiving driving information, and according to driving information, mould is driven to safety belt
Block 300 sends control signal, to furl or discharge safety belt, safety belt drive module 300 and 100 electricity of safety belt control module
Connection.
In the present embodiment, safety belt control module passes through controller local area network (Controller Area
Network, CAN) bus is electrically connected with automobile control module, for completing between safety belt control module and automobile control module
Signal transmission.Illustratively, safety belt control module may include micro-control unit (Microcontroller Unit,
MCU).Illustratively, automobile control module may include electronic control unit (Electronic Control Unit, ECU).
Electronic control unit is also known as " car running computer ", " vehicle-mounted computer " etc..It is then automobile specified microcomputerized controller from purposes.
The sensors such as the control system of vehicle safety belt generally included gravity sensor, displacement sensor in the prior art,
The driving information of automobile is obtained, controlling the safety belt of automobile, so that the hardware cost of the control system of safety belt is high,
An embodiment of the present invention provides a kind of control system of safety belt, the control module of safety belt obtains automobile from automobile control module
Driving information, and according to the driving information of automobile furl or discharge safety belt, simplify hardware circuit, reduce work(
Consumption and cost.
Optionally, referring to Fig. 2, safety belt drive module 300 includes motor 301, shaft coupling 302 and roll-up spindle 303；Electricity
The control terminal of motivation 301 is electrically connected with safety belt control module 100, control terminal of the safety belt control module 100 to motor 301
Control signal is sent, rotates forward or inverts to control motor 301；Motor 301 is mechanically connected with shaft coupling 302, roll-up spindle
303 are mechanically connected with shaft coupling 302, and motor 301 drives roll-up spindle 303 clockwise or counterclockwise by shaft coupling 302,
To furl or discharge safety belt, safety belt is wrapped in roll-up spindle 303.
Optionally, based on the above technical solution, the input terminal of automobile control module 200 is arranged at least with vehicle body
One sensor electrical connection, for obtaining driving information；Driving information includes the numerical value of the speed of automobile, laterally adds
In the numerical value of speed, the numerical value of longitudinal acceleration, pre-impact state, run-off-road state, braking state and turn condition
It is one or more.
Optionally, based on the above technical solution, safety belt control module includes that temperature sensing unit and processing are single
Member, for ambient temperature information to be sent to processing unit, processing unit is according to ambient temperature information, to the control terminal of motor
Control signal is sent, to control the output torque of motor.Illustratively, when temperature information is not equal to normal temperature information,
Increase torque, it is meant that motor every revolution, the driving force bigger of output.Illustratively, temperature sensing unit may include
Negative temperature coefficient (Negative TemperatureCoefficient, NTC) thermal resistor, with temperature rise resistance in finger
Number relationship reduces.Illustratively, the first end ground connection of negative temperature coefficient thermistor, second end are electrically connected with power module,
For obtaining power supply signal, the second end of negative temperature coefficient thermistor is electrically connected with the signal input part of processing unit, will
The temperature information of motor is sent to processing unit.Including power module, power module be used for for safety belt control module 100,
Automobile control module 200 and safety belt drive module 300 provide corresponding power supply signal.
Illustratively, processing unit may include micro-control unit (Microcontroller Unit, MCU).Microcontroller
Unit is electrically connected by H bridge motor-drive circuit (not shown) and motor 301, and H bridges are a typical DC MOTOR CONTROLs
Circuit because its circuitry shapes exactly like alphabetical H, therefore is gained the name and " H bridges ".4 vertical legs of 4 triode composition H, and motor
It is exactly the whippletree in H.The driving circuit of wherein triode is not shown.Micro-control unit is modulated by the pulse width being internally integrated
(Pulse WidthModulation, PWM) module exports the control signal of adjustable duty cycle, passes through the driving circuit of triode
Control the switch of each metal-oxide-semiconductor of H bridges.Sampling resistor is equipped on electric motor loop, by voltage divider principle by voltage signal on resistance
It is sent into the driving circuit of triode, then amplified signal is passed to microcontroller by the internal amplifier of the driving circuit of triode
Analog-digital converter (Analog-to-Digital Converter, ADC) module of unit converts analog signals into digital letter
Number, micro-control unit carries out processing operation by the signal of analog-digital converter, and adjusts Pulse width modulation module with this, from
And realize the closed-loop control in entire circuit.
Embodiment two
On the basis of the above embodiments, an embodiment of the present invention provides a kind of control method of safety belt, referring to Fig. 3,
The control method of the safety belt includes the following steps：
Step 110, automobile control module obtain driving information, are sent to safety belt control module, safety belt control
Module is electrically connected with automobile control module.
Step 120, safety belt control module send control signal according to driving information to safety belt drive module,
To furl or discharge safety belt, safety belt drive module is electrically connected with safety belt control module.
An embodiment of the present invention provides a kind of control method of safety belt, the control module of safety belt is from automobile control module
The driving information of automobile is obtained, and furls according to the driving information of automobile or discharges safety belt, compared with prior art middle vehicle
The control system of safety belt is by sensors such as included gravity sensor, displacement sensors, to obtain the driving information of automobile, comes
The safety belt of automobile is controlled, so that the hardware cost of the control system of safety belt is high, safety provided in an embodiment of the present invention
The control method of band simplifies hardware circuit, reduces power consumption and cost.
Embodiment three
An embodiment of the present invention provides a kind of control methods of safety belt, on the basis of the above embodiments, to safety belt
Control module sends control signal according to driving information, to safety belt drive module, is brought into furling or discharging safety
Further refinement is gone.Referring to Fig. 4, this method comprises the following steps：
Step 210, automobile control module obtain driving information, are sent to safety belt control module, safety belt control
Module is electrically connected with automobile control module.
Step 220, safety belt control module to the control terminal of motor send control signal, with control motor rotate forward or
Person inverts, and the control terminal of motor is electrically connected with safety belt control module.
Step 230, motor drive roll-up spindle clockwise or counterclockwise by shaft coupling, to furl or discharge peace
Full band, output shaft and the shaft coupling of motor are mechanically coupled, and roll-up spindle is mechanically coupled with shaft coupling, and safety belt is wrapped in roll-up spindle
On.
An embodiment of the present invention provides a kind of control methods of safety belt, on the basis of the above embodiments, to safety belt
Control module sends control signal according to driving information, to safety belt drive module, is brought into furling or discharging safety
It has gone further refinement, has been controlled specifically, safety belt control module is sent according to driving information to the control terminal of motor
Signal processed, motor drives roll-up spindle clockwise or counterclockwise by shaft coupling, to furl or discharge safety belt, simplifies
Hardware circuit, reduces power consumption and cost.
Optionally, based on the above technical solution, driving information includes the numerical value of the speed of automobile, laterally adds
In the numerical value of speed, the numerical value of longitudinal acceleration, pre-impact state, run-off-road state, braking state and turn condition
It is one or more.
Optionally, based on the above technical solution, temperature sensing unit obtains ambient temperature information, and by environment temperature
Degree information is sent to processing unit, and processing unit sends control signal according to ambient temperature information, to the control terminal of motor, with
The output torque of motor is controlled, safety belt control module includes temperature sensing unit and processing unit, temperature sensing unit
Signal output end is electrically connected with the signal input part of processing unit, the control signal output of the processing unit with it is described electronic
The control terminal of machine is electrically connected.
Illustratively, when temperature information is not equal to normal temperature information, increase torque, it is meant that every turn of motor one
Circle, the driving force bigger of output.
It should be noted that automobile control module obtains driving information, it is sent to safety belt control module, safety belt
Control module sends control signal to the control terminal of motor, and to control, motor rotates forward or reversion, motor pass through shaft coupling
Device drives roll-up spindle clockwise or counterclockwise, and to furl or discharge safety belt, peace is sent to according to automobile control module
The difference of driving information with control module entirely, safety belt control module is sent to the control terminal of motor and running car
Control signal corresponding to information, specifically includes following four pattern, respectively in example IV, embodiment five, six and of embodiment
It is illustrated in embodiment seven.
Example IV
On the basis of the above embodiments, an embodiment of the present invention provides a kind of control method of safety belt, referring to Fig. 5,
This method comprises the following steps：
Step 310, automobile control module obtain driving information, are sent to safety belt control module.
Step 320, when safety belt control module get car speed numerical value be greater than or equal to first threshold when, safety
Gap is sent to the control terminal of motor with control module and eliminate mode control signal, rotated forward with controlling motor to furl safety
Band makes safety belt be in tightening state；
Step 330, after so that safety belt is in the first preset time period of tightening state, safety belt control module is to electronic
The control terminal of machine sends clutch engagement and releases control signal to control motor reversion, to discharge safety belt, makes at safety belt
In relaxed state.
It should be noted that in the present embodiment, safety belt be in the first preset time of tightening state length and,
Pulling force on safety belt, related technical personnel can be according to actual conditions, sets itselfs.
When being greater than or equal to first threshold an embodiment of the present invention provides the numerical value of car speed, the controlling party of safety belt
Method.When the numerical value of car speed is greater than or equal to first threshold, safety belt control module is between the transmission of the control terminal of motor
Gap eliminates mode control signal, is rotated forward with controlling motor to furl safety belt, so that safety belt is in tightening state, passenger is consolidated
It is scheduled on seat, protects the safety of passenger.Due to the mechanostructural property of safety belt, it can make safety belt nothing after tightening
Method is released, i.e., can not release the pulling force on safety belt immediately, so in-house motor is needed to make certain time
Reversion action is to achieve the purpose that release safety belt.
Embodiment five
Optionally, on the basis of the above embodiments, an embodiment of the present invention provides a kind of control method of safety belt, ginsengs
See Fig. 6, this method comprises the following steps：
Step 410, automobile control module obtain driving information, are sent to safety belt control module.
Step 420 is in run-off-road state, turn condition or brake shape when safety belt control module gets automobile
When state, safety belt control module sends warning control signal to the control terminal of motor and rotates and reverse interval to control motor
It carries out, to furl or discharge safety belt, safety belt is made to be switched in tightening state and relaxed state；
Step 430 after so that safety belt is switched over the second preset time period in tightening state and relaxed state, is pacified
Clutch engagement is sent to the control terminal of motor release control signal to control motor reversion, with release with control module entirely
Safety belt makes safety belt be in relaxed state.
It should be noted that in the present embodiment, safety belt be in the second preset time of tightening state length and
Pulling force on safety belt, related technical personnel can be according to actual conditions, sets itselfs.
When being in run-off-road state, turn condition or braking state an embodiment of the present invention provides automobile, safety belt
Control method.When safety belt control module, which gets automobile, is in run-off-road state, turn condition or braking state,
Safety belt control module sends warning control signal to the control terminal of motor and rotates and reverse interval progress to control motor,
To furl or discharge safety belt, safety belt is made to be switched in tightening state and relaxed state, reminding passengers automobile is in
Run-off-road state, turn condition or braking state improve the ability of the awareness of safety and reply dangerous situation of passenger.It is electronic
The reversion that machine makes certain time is acted to achieve the purpose that release safety belt.
Embodiment six
Optionally, on the basis of the above embodiments, an embodiment of the present invention provides a kind of control method of safety belt, ginsengs
See Fig. 7, this method comprises the following steps：
Step 510, automobile control module obtain driving information, are sent to safety belt control module.
Step 520, when safety belt control module get the transverse acceleration of automobile numerical value be greater than or equal to the second threshold
When the numerical value of value or the longitudinal acceleration of automobile is greater than or equal to third threshold value, control of the safety belt control module to motor
End sends pre- safe control signal and is rotated forward with controlling motor to furl safety belt, and safety belt is made to tighten；
Step 530, after so that safety belt is in tightening state third preset time period, safety belt control module control to
The control terminal of motor sends clutch engagement and releases control signal to control motor reversion, to discharge safety belt, makes safety
Band is in relaxed state.
It should be noted that in the present embodiment, safety belt be in the third preset time of tightening state length and
Pulling force on safety belt, related technical personnel can be according to actual conditions, sets itselfs.
An embodiment of the present invention provides the numerical value of the transverse acceleration of automobile to be greater than or equal to second threshold or automobile
When the numerical value of longitudinal acceleration is greater than or equal to third threshold value, the control method of safety belt.When safety belt control module is got
The numerical value that the numerical value of the transverse acceleration of automobile is greater than or equal to the longitudinal acceleration of second threshold or automobile is greater than or equal to
When third threshold value, safety belt control module to the control terminal of motor send pre- safe control signal with control motor rotate forward with
Safety belt is furled, so that safety belt is tightened, secures a passenger on seat, protect the safety of passenger.Motor makes a timing
Between reversion act with achieve the purpose that release safety belt.
Embodiment seven
Optionally, on the basis of the above embodiments, an embodiment of the present invention provides a kind of control method of safety belt, ginsengs
See Fig. 8, this method comprises the following steps：
Step 610, automobile control module obtain driving information, are sent to safety belt control module.
Step 620 is in when safety belt control module gets automobile under pre-impact state, and safety belt control module is to electricity
The control terminal of motivation sends pre-impact control signal and is rotated forward with controlling motor to furl safety belt, and safety belt is made to tighten；
Step 630, after so that safety belt is in the 4th preset time period of tightening state, safety belt control module is to electronic
The control terminal of machine sends clutch engagement and releases control signal to control motor reversion, to discharge safety belt, makes at safety belt
In relaxed state.
It should be noted that in the present embodiment, safety belt be in the 4th preset time of tightening state length and
Pulling force on safety belt, related technical personnel can be according to actual conditions, sets itselfs.
When being in pre-impact state an embodiment of the present invention provides automobile, the control method of safety belt.By automobile possible
In the case of pre-impact occurs, secures a passenger on seat, protect the safety of passenger.Motor makes the anti-of certain time
Rotation is made to achieve the purpose that release safety belt.
Note that above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiments described here, can carry out for a person skilled in the art it is various it is apparent variation,
It readjusts, be combined with each other and substitutes without departing from protection scope of the present invention.Therefore, although by above example to this
Invention is described in further detail, but the present invention is not limited only to above example, is not departing from present inventive concept
In the case of, can also include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. a kind of control system of safety belt, which is characterized in that including：
Safety belt, safety belt control module and safety belt drive module；
The safety belt control module, is electrically connected with automobile control module, for receiving driving information, and according to the vapour
Vehicle driving information sends control signal, to furl or discharge the safety belt, the safety to the safety belt drive module
Band drive module is electrically connected with the safety belt control module.
2. the control system of safety belt according to claim 1, which is characterized in that
The safety belt drive module includes motor, shaft coupling and roll-up spindle；
The control terminal of the motor is electrically connected with the safety belt control module, and the safety belt control module is to described electronic
The control terminal of machine sends control signal, rotates forward or inverts to control the motor；
The motor is mechanically connected with the shaft coupling, and the roll-up spindle is mechanically connected with the shaft coupling, the motor
The roll-up spindle is driven by the shaft coupling clockwise or counterclockwise, it is described to furl or discharge the safety belt
Safety belt is wrapped in the roll-up spindle.
3. the control system of safety belt according to claim 2, which is characterized in that
The safety belt control module includes temperature sensing unit and processing unit, described in being sent to ambient temperature information
Processing unit, the processing unit send control signal according to the ambient temperature information, to the control terminal of the motor, with
The output torque of the motor is controlled, the signal output end of the temperature sensing unit and the signal of the processing unit input
End electrical connection, the control signal output of the processing unit are electrically connected with the control terminal of the motor.
4. a kind of control method of safety belt, based on the control system of any safety belts of claim 1-3, feature exists
In, including：
Automobile control module obtains driving information, is sent to safety belt control module, the safety belt control module, with institute
State automobile control module electrical connection；
The safety belt control module sends control signal according to the driving information, to safety belt drive module, with volume
It receives or release safety belt, the safety belt drive module is electrically connected with the safety belt control module.
5. the control method of safety belt according to claim 4, which is characterized in that
The safety belt control module sends control signal according to the driving information, to safety belt drive module, with volume
It receives or release safety belt specifically includes：
The safety belt control module sends control signal to the control terminal of the motor, with control the motor rotate forward or
Person inverts, and the control terminal of the motor is electrically connected with the safety belt control module；
The motor drives roll-up spindle clockwise or counterclockwise by shaft coupling, to furl or discharge the safety
Band, the output shaft of the motor are mechanically coupled with the shaft coupling, and the roll-up spindle is mechanically coupled with the shaft coupling, described
Safety belt is wrapped in the roll-up spindle；
The driving information includes the number of the numerical value of the speed of the automobile, the numerical value of transverse acceleration, longitudinal acceleration
It is one or more in value, pre-impact state, run-off-road state, braking state and turn condition.
6. the control method of safety belt according to claim 5, which is characterized in that
When the numerical value that the safety belt control module gets the car speed is greater than or equal to first threshold, the safety
Send gap to the control terminal of the motor with control module and eliminate mode control signal, with control the motor rotate forward with
The safety belt is furled, the safety belt is made to be in tightening state；
After so that the safety belt is in the first preset time period of tightening state, the safety belt control module is to described electronic
The control terminal of machine sends clutch engagement and releases control signal to control the motor reversion, to discharge the safety belt, makes
The safety belt is in relaxed state.
7. the control method of safety belt according to claim 5, which is characterized in that
It is in run-off-road state, turn condition or braking state when the safety belt control module gets the automobile
When, the safety belt control module sends warning control signal to the control terminal of the motor and is rotated forward with controlling the motor
With reversal interval carry out, to furl or discharge the safety belt, make the safety belt in tightening state and relaxed state into
Row switching；
After so that the safety belt is switched over the second preset time period in tightening state and relaxed state, the safety belt
Control module sends clutch engagement releasing control signal to the control terminal of the motor and is inverted with controlling the motor, with
The safety belt is discharged, the safety belt is made to be in relaxed state.
8. the control method of safety belt according to claim 5, which is characterized in that
When the safety belt control module get the transverse acceleration of the automobile numerical value be greater than or equal to second threshold or
When the numerical value of the longitudinal acceleration of automobile described in person is greater than or equal to third threshold value, the safety belt control module is to described electronic
The control terminal of machine sends pre- safe control signal and is rotated forward with controlling the motor to furl the safety belt, makes the safety belt
Tightening；
After so that the safety belt is in tightening state third preset time period, the safety belt control module is controlled to described
The control terminal of motor sends clutch engagement and releases control signal to control the motor reversion, to discharge the safety
Band makes the safety belt be in relaxed state.
9. the control method of safety belt according to claim 5, which is characterized in that
It is under pre-impact state when the safety belt control module gets the automobile, the safety belt control module is to institute
The control terminal for stating motor sends pre-impact control signal to control the motor rotating forward to furl the safety belt, makes described
Safety belt is tightened；
After so that the safety belt is in the 4th preset time period of tightening state, the safety belt control module is to described electronic
The control terminal of machine sends clutch engagement and releases control signal to control the motor reversion, to discharge the safety belt, makes
The safety belt is in relaxed state.
10. control method according to claim 5, which is characterized in that
Temperature sensing unit obtains ambient temperature information, and the ambient temperature information is sent to processing unit, the processing
Unit sends control signal according to the ambient temperature information, to the control terminal of the motor, to control the motor
Output torque, the safety belt control module include the temperature sensing unit and processing unit, the temperature sensing unit
Signal output end is electrically connected with the signal input part of the processing unit, the control signal output of the processing unit with it is described
The control terminal of motor is electrically connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810213697.9A CN108437928B (en) | 2018-03-15 | 2018-03-15 | Control system and control method of safety belt |
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| CN201810213697.9A CN108437928B (en) | 2018-03-15 | 2018-03-15 | Control system and control method of safety belt |
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| CN108437928A true CN108437928A (en) | 2018-08-24 |
| CN108437928B CN108437928B (en) | 2021-07-30 |
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| CN114987378A (en) * | 2022-06-28 | 2022-09-02 | 惠州市唐群座椅科技股份有限公司 | Safety protection system and safety protection method suitable for automobile driving |
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|---|---|
| CN108437928B (en) | 2021-07-30 |
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