CN108437928B - Control system and control method of safety belt - Google Patents
Control system and control method of safety belt Download PDFInfo
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- CN108437928B CN108437928B CN201810213697.9A CN201810213697A CN108437928B CN 108437928 B CN108437928 B CN 108437928B CN 201810213697 A CN201810213697 A CN 201810213697A CN 108437928 B CN108437928 B CN 108437928B
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- safety belt
- control
- motor
- control module
- automobile
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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
- B60R22/34—Belt retractors, e.g. reels
- B60R22/44—Belt retractors, e.g. reels with means for reducing belt tension during use under normal conditions
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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
- B60R22/34—Belt retractors, e.g. reels
- B60R22/46—Reels with means to tension the belt in an emergency by forced winding up
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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
- B60R22/34—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
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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
- B60R22/34—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
Abstract
The invention discloses a control system and a control method of a safety belt, which comprise the following steps: the safety belt comprises a safety belt, a safety belt control module and a safety belt driving module; the safety belt control module is electrically connected with the automobile control module and used for receiving automobile running information and sending a control signal to the safety belt driving module according to the automobile running information so as to roll up or release the safety belt, and the safety belt driving module is electrically connected with the safety belt control module. According to the technical scheme provided by the embodiment of the invention, the control module of the safety belt acquires the driving information of the automobile from the automobile control module, and the safety belt is wound or released according to the driving information of the automobile, so that the hardware circuit structure is simplified, and the power consumption and the cost are reduced.
Description
Technical Field
The embodiment of the invention relates to the field of automobiles, in particular to a control system and a control method of a safety belt.
Background
The control system of the car seat belt generally tightens or releases the seat belt according to the driving information of the car to ensure the safety of the passenger on the car seat.
At present, a control system of a vehicle safety belt generally has sensors such as a gravity sensor and a displacement sensor to obtain driving information of an automobile and control the safety belt of the automobile, so that the hardware cost of the control system of the safety belt is high.
Disclosure of Invention
In view of this, embodiments of the present invention provide a control system and a control method for a seat belt, which simplify a hardware circuit structure and reduce power consumption and cost compared with a seat belt control system in the prior art.
In a first aspect, an embodiment of the present invention provides a control system for a seat belt, including:
the safety belt comprises a safety belt, a safety belt control module and a safety belt driving module;
the safety belt control module is electrically connected with the automobile control module and used for receiving automobile running information and sending a control signal to the safety belt driving module according to the automobile running information so as to roll up or release the safety belt, and the safety belt driving module is electrically connected with the safety belt control module.
Optionally, the safety belt driving module comprises a motor, a coupler and a take-up shaft;
the control end of the motor is electrically connected with the safety belt control module, and the safety belt control module sends a control signal to the control end of the motor so as to control the motor to rotate forwards or backwards;
the motor is mechanically connected with the coupler, the winding shaft is mechanically connected with the coupler, the motor drives the winding shaft to rotate clockwise or anticlockwise through the coupler so as to wind or release the safety belt, and the safety belt is wound on the winding shaft.
Optionally, an input end of the automobile control module is electrically connected with at least one sensor arranged on the automobile body, and is used for acquiring the automobile driving information;
the vehicle driving information includes one or more of a speed value, a lateral acceleration value, a longitudinal acceleration value, a pre-crash state, a lane departure state, a braking state, and a turning state of the vehicle.
Optionally, the safety belt control module includes a temperature sensing unit and a processing unit, and is configured to send ambient temperature information to the processing unit, where the processing unit sends a control signal to the control terminal of the motor according to the ambient temperature information to control the output torque of the motor, a signal output end of the temperature sensing unit is electrically connected to a signal input end of the processing unit, and a control signal output end of the processing unit is electrically connected to the control terminal of the motor.
In a second aspect, an embodiment of the present invention provides a method for controlling a seat belt, based on the system for controlling a seat belt in the first aspect, including:
the automobile control module acquires automobile driving information and sends the automobile driving information to the safety belt control module, and the safety belt control module is electrically connected with the automobile control module;
the safety belt control module sends a control signal to a safety belt driving module according to the automobile running information so as to roll up or release the safety belt, and the safety belt driving module is electrically connected with the safety belt control module.
Optionally, the belt control module sends a control signal to the belt driving module according to the vehicle driving information, so as to wind or release the belt specifically includes:
the safety belt control module sends a control signal to a control end of the motor so as to control the motor to rotate forwards or backwards, and the control end of the motor is electrically connected with the safety belt control module;
the motor drives the winding shaft to rotate clockwise or anticlockwise through the coupler so as to wind or release the safety belt, the output shaft of the motor is mechanically connected with the coupler, the winding shaft is mechanically connected with the coupler, and the safety belt is wound on the winding shaft.
Optionally, the vehicle driving information includes one or more of a speed value, a lateral acceleration value, a longitudinal acceleration value, a pre-crash state, a lane-departure state, a braking state, and a turning state of the vehicle.
Optionally, when the numerical value of the acquired automobile speed is greater than or equal to a first threshold value, the seat belt control module sends a gap elimination mode control signal to a control end of the motor to control the motor to rotate forward to furl the seat belt, so that the seat belt is in a tightened state;
after the safety belt is continuously in the tightened state for a first preset time period, the safety belt control module sends a clutch engagement releasing control signal to the control end of the motor to control the motor to rotate reversely so as to release the safety belt and enable the safety belt to be in the loosened state.
Optionally, when the safety belt control module acquires that the automobile is in a lane departure state, a turning state or a braking state, the safety belt control module sends a warning control signal to a control end of the motor to control the motor to rotate forward and backward at intervals so as to wind up or release the safety belt, so that the safety belt is switched between a tightening state and a loosening state;
after continuously switching the safety belt between the tightening state and the loosening state for a second preset time period, the safety belt control module sends a clutch engagement release control signal to the control end of the motor to control the motor to rotate reversely so as to release the safety belt and enable the safety belt to be in the loosening state.
Optionally, when the safety belt control module obtains that the value of the lateral acceleration of the automobile is greater than or equal to a second threshold or the value of the longitudinal acceleration of the automobile is greater than or equal to a third threshold, the safety belt control module sends a pre-safety control signal to a control end of the motor to control the motor to rotate forward to roll up the safety belt, so that the safety belt is tightened;
after the safety belt is continuously in the tightened state for a third preset time period, the safety belt control module controls to send a clutch engagement releasing control signal to the control end of the motor to control the motor to rotate reversely so as to release the safety belt and enable the safety belt to be in the loosened state.
Optionally, when the safety belt control module acquires that the automobile is in a pre-collision state, the safety belt control module sends a pre-collision control signal to a control end of the motor to control the motor to rotate forward to roll up the safety belt, so that the safety belt is tightened;
after the safety belt is continuously in the tightening state for the fourth preset time period, the safety belt control module sends a clutch engagement releasing control signal to the control end of the motor to control the motor to rotate reversely, so that the safety belt is released and is in the loosening state.
Optionally, the temperature sensing unit acquires ambient temperature information and sends the ambient temperature information to the processing unit, the processing unit sends a control signal to the control end of the motor according to the ambient temperature information to control the output torque of the motor, the safety belt control module comprises the temperature sensing unit and the processing unit, the signal output end of the temperature sensing unit is electrically connected with the signal input end of the processing unit, and the control signal output end of the processing unit is electrically connected with the control end of the motor. The embodiment of the invention provides a control system and a control method of a safety belt, wherein a control module of the safety belt acquires driving information of an automobile from an automobile control module and furls or releases the safety belt according to the driving information of the automobile, so that a sensor used by the control module of the safety belt for acquiring the driving information of the automobile in the prior art is omitted, a hardware circuit structure is simplified, and power consumption and cost are reduced.
Drawings
Fig. 1 is a block diagram of a control system of a seat belt according to an embodiment of the present invention;
fig. 2 is a block diagram of a control system of a seatbelt according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of a method for controlling a seat belt according to a second embodiment of the present invention;
fig. 4 is a schematic flowchart of a method for controlling a seat belt according to a third embodiment of the present invention;
fig. 5 is a schematic flow chart of a seat belt control method according to a fourth embodiment of the present invention;
fig. 6 is a schematic flowchart of a method for controlling a seat belt according to a fifth embodiment of the present invention;
fig. 7 is a schematic flowchart of a method for controlling a seat belt according to a sixth embodiment of the present invention;
fig. 8 is a schematic flowchart of a method for controlling a seat belt according to a seventh embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a block diagram of a control system of a seat belt according to an embodiment of the present invention, and referring to fig. 1, the control system of the seat belt includes: the safety belt comprises a safety belt, a safety belt control module and a safety belt driving module; the safety belt control module 100 is electrically connected to the vehicle control module 200, and configured to receive vehicle driving information and send a control signal to the safety belt driving module 300 according to the vehicle driving information, so as to wind up or release the safety belt, and the safety belt driving module 300 is electrically connected to the safety belt control module 100.
In this embodiment, the safety belt control module is electrically connected to the vehicle control module through a Controller Area Network (CAN) bus, and is configured to complete signal transmission between the safety belt control module and the vehicle control module. Illustratively, the seat belt control module may include a Micro Controller Unit (MCU). For example, the vehicle Control module may include an Electronic Control Unit (ECU). The electronic control unit is also called as a traveling computer, a vehicle-mounted computer and the like. The controller is a special microcomputer controller for the automobile in terms of application.
In the control system of the safety belt of the vehicle in the prior art, generally, sensors such as a gravity sensor and a displacement sensor are arranged to obtain the driving information of the vehicle to control the safety belt of the vehicle, so that the hardware cost of the control system of the safety belt is high.
Alternatively, referring to fig. 2, the belt drive module 300 comprises a motor 301, a coupling 302, and a take-up spindle 303; the control end of the motor 301 is electrically connected with the seat belt control module 100, and the seat belt control module 100 sends a control signal to the control end of the motor 301 to control the motor 301 to rotate forwards or backwards; the motor 301 is mechanically connected with the coupler 302, the take-up shaft 303 is mechanically connected with the coupler 302, the motor 301 drives the take-up shaft 303 to rotate clockwise or anticlockwise through the coupler 302 so as to take up or release the safety belt, and the safety belt is wound on the take-up shaft 303.
Optionally, on the basis of the above technical solution, an input end of the vehicle control module 200 is electrically connected to at least one sensor provided on the vehicle body, and is used for acquiring vehicle driving information; the vehicle driving information includes one or more of a speed value, a lateral acceleration value, a longitudinal acceleration value, a pre-crash state, a lane departure state, a braking state, and a turning state of the vehicle.
Optionally, on the basis of the above technical solution, the seat belt control module includes a temperature sensing unit and a processing unit, and is configured to send the ambient temperature information to the processing unit, and the processing unit sends a control signal to the control terminal of the motor according to the ambient temperature information, so as to control the output torque of the motor. For example, when the temperature information is not equal to the standard temperature information, the torque is increased, which means that the output driving force is larger per one rotation of the motor. Illustratively, the temperature sensing unit may include a Negative Temperature Coefficient (NTC) thermistor, the resistance of which decreases exponentially with a temperature rise. Illustratively, the first end of the negative temperature coefficient thermistor is grounded, the second end of the negative temperature coefficient thermistor is electrically connected with the power module and used for acquiring a power supply signal, and the second end of the negative temperature coefficient thermistor is electrically connected with the signal input end of the processing unit and used for sending the temperature information of the motor to the processing unit. Includes a power module for providing corresponding power signals to the belt control module 100, the vehicle control module 200 and the belt driving module 300.
Illustratively, the processing Unit may include a Microcontroller Unit (MCU). The micro-control unit is electrically connected to the motor 301 through an H-bridge motor drive circuit (not shown), which is a typical dc motor control circuit known by the name "H-bridge" because its circuit shape closely resembles the letter H. The 4 triodes form 4 vertical legs of the H, and the motor is the cross bar in the H. Wherein the drive circuit for the transistor is not shown. The micro control unit outputs a control signal with adjustable duty ratio through an internally integrated Pulse Width Modulation (PWM) module, and controls the on and off of each MOS tube of the H bridge through a driving circuit of a triode. The motor loop is provided with a sampling resistor, a voltage signal on the resistor is sent to a driving circuit of the triode by a voltage division principle, an amplified signal is transmitted to an Analog-to-Digital Converter (ADC) module of the driving circuit of the triode by an internal amplifier of the driving circuit of the triode to convert the Analog signal into a Digital signal, and the micro-control unit carries out processing operation by the signal of the ADC and adjusts a pulse width modulation module according to the processing operation, so that the closed-loop control of the whole loop is realized.
Example two
On the basis of the above embodiment, an embodiment of the present invention provides a control method of a seat belt, and referring to fig. 3, the control method of the seat belt includes the following steps:
and 110, the automobile control module acquires automobile running information and sends the automobile running information to the safety belt control module, and the safety belt control module is electrically connected with the automobile control module.
And step 120, the safety belt control module sends a control signal to the safety belt driving module according to the automobile driving information so as to roll up or release the safety belt, and the safety belt driving module is electrically connected with the safety belt control module.
Compared with the prior art that the control system of the safety belt of the vehicle obtains the driving information of the vehicle through a sensor with a gravity sensor, a displacement sensor and the like to control the safety belt of the vehicle, the hardware cost of the control system of the safety belt is high, the control method of the safety belt provided by the embodiment of the invention simplifies a hardware circuit structure and reduces the power consumption and the cost.
EXAMPLE III
On the basis of the embodiment, the safety belt control module sends a control signal to the safety belt driving module according to the automobile driving information so as to wind or release the safety belt for further refinement. Referring to fig. 4, the method includes the steps of:
step 210, the automobile control module obtains automobile driving information and sends the automobile driving information to the safety belt control module, and the safety belt control module is electrically connected with the automobile control module.
And step 220, the safety belt control module sends a control signal to the control end of the motor to control the motor to rotate forwards or backwards, and the control end of the motor is electrically connected with the safety belt control module.
And step 230, the motor drives the winding shaft to rotate clockwise or anticlockwise through the coupler so as to wind or release the safety belt, the output shaft of the motor is mechanically connected with the coupler, the winding shaft is mechanically connected with the coupler, and the safety belt is wound on the winding shaft.
The embodiment of the invention provides a safety belt control method, on the basis of the embodiment, a safety belt control module sends a control signal to a safety belt driving module according to automobile running information so as to wind or release a safety belt for further refinement, specifically, the safety belt control module sends a control signal to a control end of a motor according to the automobile running information, and the motor drives a winding shaft to rotate clockwise or anticlockwise through a coupler so as to wind or release the safety belt, so that a hardware circuit structure is simplified, and power consumption and cost are reduced.
Optionally, on the basis of the above technical solution, the vehicle driving information includes one or more of a speed value, a lateral acceleration value, a longitudinal acceleration value, a pre-collision state, a lane departure state, a braking state, and a turning state of the vehicle.
Optionally, on the basis of the above technical scheme, the temperature sensing unit acquires ambient temperature information and sends the ambient temperature information to the processing unit, the processing unit sends a control signal to the control terminal of the motor according to the ambient temperature information to control the output torque of the motor, the safety belt control module includes the temperature sensing unit and the processing unit, the signal output terminal of the temperature sensing unit is electrically connected with the signal input terminal of the processing unit, and the control signal output terminal of the processing unit is electrically connected with the control terminal of the motor.
For example, when the temperature information is not equal to the standard temperature information, the torque is increased, which means that the output driving force is larger per one rotation of the motor.
It should be noted that the automobile control module acquires automobile driving information and sends the automobile driving information to the seat belt control module, the seat belt control module sends a control signal to a control end of the motor to control the motor to rotate forward or backward, the motor drives the winding shaft to rotate clockwise or counterclockwise through the coupler to wind or release the seat belt, and according to the difference of the automobile driving information sent by the automobile control module to the seat belt control module, the seat belt control module sends a control signal corresponding to the automobile driving information to the control end of the motor.
Example four
On the basis of the above embodiment, an embodiment of the present invention provides a method for controlling a seat belt, and referring to fig. 5, the method includes the following steps:
and step 310, the automobile control module acquires automobile running information and sends the automobile running information to the safety belt control module.
Step 320, when the safety belt control module obtains that the numerical value of the automobile speed is greater than or equal to a first threshold value, the safety belt control module sends a gap elimination mode control signal to a control end of the motor so as to control the motor to rotate forwards to roll up the safety belt, so that the safety belt is in a tightening state;
step 330, after the seat belt is continuously in the tightened state for the first preset time period, the seat belt control module sends a clutch engagement release control signal to the control end of the motor to control the motor to rotate reversely, so as to release the seat belt and enable the seat belt to be in the loose state.
It should be noted that, in this embodiment, the length of the first preset time when the safety belt is in the tightened state and the tension on the safety belt can be set by the related technical personnel according to the actual situation.
The embodiment of the invention provides a control method of a safety belt when the numerical value of the automobile speed is larger than or equal to a first threshold value. When the value of the automobile speed is larger than or equal to the first threshold value, the safety belt control module sends a gap elimination mode control signal to the control end of the motor so as to control the motor to rotate forwards to roll up the safety belt, so that the safety belt is in a tightening state, a passenger is fixed on a seat, and the safety of the passenger is protected. Because of the mechanical structure of the safety belt, the safety belt cannot be released after being tightened, that is, the tension on the safety belt cannot be released immediately, and therefore, a motor inside the mechanism needs to perform a reverse rotation operation for a certain time to achieve the purpose of releasing the safety belt.
EXAMPLE five
Optionally, on the basis of the above embodiment, an embodiment of the present invention provides a method for controlling a seat belt, and referring to fig. 6, the method includes the following steps:
and step 410, the automobile control module acquires automobile driving information and sends the automobile driving information to the safety belt control module.
Step 420, when the safety belt control module acquires that the automobile is in a lane departure state, a turning state or a braking state, the safety belt control module sends a warning control signal to a control end of the motor to control the motor to rotate forwards and backwards at intervals so as to wind or release the safety belt, and the safety belt is switched between a tightening state and a loosening state;
and step 430, after continuously switching the safety belt between the tightening state and the loosening state for a second preset time period, the safety belt control module sends a clutch engagement release control signal to the control end of the motor to control the motor to rotate reversely so as to release the safety belt and enable the safety belt to be in the loosening state.
It should be noted that, in this embodiment, the length of the second preset time when the safety belt is in the tightened state and the tension on the safety belt can be set by a related technician according to an actual situation.
The embodiment of the invention provides a control method of a safety belt when an automobile is in a lane departure state, a turning state or a braking state. When the safety belt control module acquires that the automobile is in a lane departure state, a turning state or a braking state, the safety belt control module sends a warning control signal to the control end of the motor to control the motor to rotate forwards and backwards at intervals so as to wind or release the safety belt, the safety belt is switched between a tightening state and a loosening state, passengers are reminded that the automobile is in the lane departure state, the turning state or the braking state, and safety awareness of the passengers and capacity of coping with dangerous situations are improved. The motor makes a reverse rotation action for a certain time to achieve the purpose of releasing the safety belt.
EXAMPLE six
Optionally, on the basis of the above embodiment, an embodiment of the present invention provides a method for controlling a seat belt, and referring to fig. 7, the method includes the following steps:
and step 510, the automobile control module acquires automobile running information and sends the automobile running information to the safety belt control module.
Step 520, when the safety belt control module obtains that the value of the lateral acceleration of the automobile is greater than or equal to a second threshold value or the value of the longitudinal acceleration of the automobile is greater than or equal to a third threshold value, the safety belt control module sends a pre-safety control signal to a control end of the motor to control the motor to rotate forward to furl the safety belt, so that the safety belt is tightened;
and step 530, after the safety belt is continuously in the tightening state for the third preset time period, the safety belt control module controls to send a clutch engagement releasing control signal to the control end of the motor to control the motor to rotate reversely so as to release the safety belt and enable the safety belt to be in the loosening state.
It should be noted that, in this embodiment, the length of the third preset time when the safety belt is in the tightened state and the tension on the safety belt can be set by a related technician according to an actual situation.
The embodiment of the invention provides a control method of a safety belt when the numerical value of the lateral acceleration of an automobile is larger than or equal to a second threshold value or the numerical value of the longitudinal acceleration of the automobile is larger than or equal to a third threshold value. When the safety belt control module acquires that the value of the transverse acceleration of the automobile is larger than or equal to the second threshold or the value of the longitudinal acceleration of the automobile is larger than or equal to the third threshold, the safety belt control module sends a pre-safety control signal to the control end of the motor to control the motor to rotate forwards to roll up the safety belt, so that the safety belt is tightened, a passenger is fixed on a seat, and the safety of the passenger is protected. The motor makes a reverse rotation action for a certain time to achieve the purpose of releasing the safety belt.
EXAMPLE seven
Optionally, on the basis of the above embodiment, an embodiment of the present invention provides a method for controlling a seat belt, referring to fig. 8, where the method includes the following steps:
and step 610, the automobile control module acquires automobile running information and sends the automobile running information to the safety belt control module.
Step 620, when the safety belt control module acquires that the automobile is in a pre-collision state, the safety belt control module sends a pre-collision control signal to a control end of the motor to control the motor to rotate forwards to roll up the safety belt, so that the safety belt is tightened;
step 630, after the seat belt is continuously in the tightened state for the fourth preset time period, the seat belt control module sends a clutch engagement release control signal to the control end of the motor to control the motor to rotate reversely, so that the seat belt is released and is in the loose state.
It should be noted that, in this embodiment, the length of the fourth preset time when the safety belt is in the tightened state and the tension on the safety belt can be set by a person skilled in the relevant art according to actual situations.
The embodiment of the invention provides a control method of a safety belt when an automobile is in a pre-collision state. The automobile is fixed on the seat under the condition that pre-collision is possible, so that the safety of passengers is protected. The motor makes a reverse rotation action for a certain time to achieve the purpose of releasing the safety belt.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (6)
1. A control system for a seat belt, comprising:
the safety belt comprises a safety belt, a safety belt control module and a safety belt driving module;
the safety belt control module is electrically connected with the automobile control module and used for receiving automobile running information and sending a control signal to the safety belt driving module according to the automobile running information so as to roll up or release the safety belt, and the safety belt driving module is electrically connected with the safety belt control module;
the safety belt driving module comprises a motor, a coupler and a winding shaft;
the control end of the motor is electrically connected with the safety belt control module, and the safety belt control module sends a control signal to the control end of the motor so as to control the motor to rotate forwards or backwards;
the motor is mechanically connected with the coupler, the winding shaft is mechanically connected with the coupler, the motor drives the winding shaft to rotate clockwise or anticlockwise through the coupler so as to wind or release the safety belt, and the safety belt is wound on the winding shaft;
the safety belt control module comprises a temperature sensing unit and a processing unit, and is used for sending environment temperature information to the processing unit, the processing unit sends a control signal to the control end of the motor according to the environment temperature information so as to control the output torque of the motor, the signal output end of the temperature sensing unit is electrically connected with the signal input end of the processing unit, and the control signal output end of the processing unit is electrically connected with the control end of the motor; when the ambient temperature information is not equal to the standard temperature information, the processing unit increases the output torque of the motor;
the automobile control system is characterized by further comprising an automobile control module, wherein the input end of the automobile control module is electrically connected with at least one sensor arranged on the automobile body and used for acquiring automobile running information; the automobile driving information comprises one or more of a lane departure state, a braking state and a turning state of the automobile;
when the safety belt control module acquires that the automobile is in a lane departure state, a turning state or a braking state, the safety belt control module sends a warning control signal to a control end of the motor to control the motor to rotate forwards and backwards at intervals so as to roll up or release the safety belt, and the safety belt is switched between a tightening state and a loosening state;
after continuously switching the safety belt between the tightening state and the loosening state for a second preset time period, the safety belt control module sends a clutch engagement release control signal to the control end of the motor to control the motor to rotate reversely so as to release the safety belt and enable the safety belt to be in the loosening state.
2. A control method of a seat belt based on the control system of a seat belt according to claim 1, characterized by comprising:
the automobile control module acquires automobile driving information and sends the automobile driving information to the safety belt control module, and the safety belt control module is electrically connected with the automobile control module;
the safety belt control module sends a control signal to a safety belt driving module according to the automobile running information so as to roll up or release a safety belt, and the safety belt driving module is electrically connected with the safety belt control module;
the safety belt control module sends a control signal to the safety belt driving module according to the automobile running information so as to furl or release the safety belt specifically comprise:
the safety belt control module sends a control signal to a control end of the motor so as to control the motor to rotate forwards or backwards, and the control end of the motor is electrically connected with the safety belt control module;
the motor drives the winding shaft to rotate clockwise or anticlockwise through the coupler so as to wind or release the safety belt, the output shaft of the motor is mechanically connected with the coupler, the winding shaft is mechanically connected with the coupler, and the safety belt is wound on the winding shaft;
the safety belt control module comprises a temperature sensing unit and a processing unit, wherein the temperature sensing unit acquires environment temperature information and sends the environment temperature information to the processing unit, the processing unit sends a control signal to a control end of the motor according to the environment temperature information so as to control the output torque of the motor, the safety belt control module comprises the temperature sensing unit and the processing unit, a signal output end of the temperature sensing unit is electrically connected with a signal input end of the processing unit, a control signal output end of the processing unit is electrically connected with the control end of the motor, and when the environment temperature information is not equal to standard temperature information, the processing unit increases the output torque of the motor;
the automobile driving information comprises one or more of a lane departure state, a braking state and a turning state of the automobile;
when the safety belt control module acquires that the automobile is in a lane departure state, a turning state or a braking state, the safety belt control module sends a warning control signal to a control end of the motor to control the motor to rotate forwards and backwards at intervals so as to roll up or release the safety belt, and the safety belt is switched between a tightening state and a loosening state;
after continuously switching the safety belt between the tightening state and the loosening state for a second preset time period, the safety belt control module sends a clutch engagement release control signal to the control end of the motor to control the motor to rotate reversely so as to release the safety belt and enable the safety belt to be in the loosening state.
3. The control method of a seatbelt according to claim 2, wherein the vehicle running information includes one or more of a value of a speed of the vehicle, a value of a lateral acceleration, a value of a longitudinal acceleration, and a pre-crash state.
4. The control method of a seatbelt according to claim 2,
when the safety belt control module obtains that the numerical value of the automobile speed is larger than or equal to a first threshold value, the safety belt control module sends a gap elimination mode control signal to a control end of the motor so as to control the motor to rotate forwards to furl the safety belt, so that the safety belt is in a tightening state;
after the safety belt is continuously in the tightened state for a first preset time period, the safety belt control module sends a clutch engagement releasing control signal to the control end of the motor to control the motor to rotate reversely so as to release the safety belt and enable the safety belt to be in the loosened state.
5. The control method of the safety belt according to claim 2, wherein when the safety belt control module acquires that the value of the lateral acceleration of the automobile is greater than or equal to a second threshold or the value of the longitudinal acceleration of the automobile is greater than or equal to a third threshold, the safety belt control module sends a pre-safety control signal to a control end of the motor to control the motor to rotate forward to roll up the safety belt, so that the safety belt is tightened;
after the safety belt is continuously in the tightened state for a third preset time period, the safety belt control module controls to send a clutch engagement releasing control signal to the control end of the motor to control the motor to rotate reversely so as to release the safety belt and enable the safety belt to be in the loosened state.
6. The control method of a seatbelt according to claim 2,
when the safety belt control module acquires that the automobile is in a pre-collision state, the safety belt control module sends a pre-collision control signal to a control end of the motor to control the motor to rotate forwards to roll up the safety belt, so that the safety belt is tightened;
after the safety belt is continuously in the tightening state for the fourth preset time period, the safety belt control module sends a clutch engagement releasing control signal to the control end of the motor to control the motor to rotate reversely, so that the safety belt is released and is in the loosening state.
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| CN112660064B (en) * | 2020-12-30 | 2022-12-02 | 大众问问(北京)信息科技有限公司 | Method and device for controlling safety belt in vehicle, computer equipment and storage medium |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007161140A (en) * | 2005-12-15 | 2007-06-28 | Honda Motor Co Ltd | Seat belt device for vehicle |
| CN103921758A (en) * | 2013-10-11 | 2014-07-16 | 天津职业技术师范大学 | Motor driving type pretensioner for active tensioning type safety belt |
| CN107284404A (en) * | 2016-03-31 | 2017-10-24 | 比亚迪股份有限公司 | Seat belt apparatus, belt reminder method and vehicle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201951401U (en) * | 2011-01-20 | 2011-08-31 | 浙江吉利汽车研究院有限公司 | Seat belt pre-tensioning control device |
| CN202686267U (en) * | 2012-06-20 | 2013-01-23 | 浙江吉利汽车研究院有限公司杭州分公司 | Pre-tensioning device for automobile safety belt |
| CN204296643U (en) * | 2014-09-10 | 2015-04-29 | 安徽工程大学 | A kind of prefastening car belt |
| JP6542590B2 (en) * | 2015-06-05 | 2019-07-10 | Ｊｏｙｓｏｎ Ｓａｆｅｔｙ Ｓｙｓｔｅｍｓ Ｊａｐａｎ株式会社 | Occupant movement control device |
| CN206704147U (en) * | 2017-05-04 | 2017-12-05 | 安徽机电职业技术学院 | A kind of car belt intelligent control pretensioner systems |
-
2018
- 2018-03-15 CN CN201810213697.9A patent/CN108437928B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007161140A (en) * | 2005-12-15 | 2007-06-28 | Honda Motor Co Ltd | Seat belt device for vehicle |
| CN103921758A (en) * | 2013-10-11 | 2014-07-16 | 天津职业技术师范大学 | Motor driving type pretensioner for active tensioning type safety belt |
| CN107284404A (en) * | 2016-03-31 | 2017-10-24 | 比亚迪股份有限公司 | Seat belt apparatus, belt reminder method and vehicle |
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