Abstract: A system for managing a seat occupancy status by a passenger and a control method of the system includes a seat belt sensor provided for each seat to detect a fastening or unfastening of the seat belt, a pressure detection unit provided for each seat to detect occupancy or non-occupancy of a seat by a passenger and pressure of the seated passenger, a secondary control unit provided for each seat and woken up by radio communication with a vehicle to alert to an unfastened state of the seat belt when the seat belt is unfastened upon determining, by a seat belt sensor, whether the seat belt is fastened, and a primary control unit provided in the vehicle to perform radio communications with each secondary control unit and check an abnormality based on reception or non-reception of the system data transmitted from the secondary control unit.

Abstract: A system for and a method of wireless communication with a seat belt includes a seat belt sensor provided on a per-seat basis and configured to detect whether or not a seat belt is fastened, a secondary controller provided on a per-seat basis and configured to wake up through wireless communication with a vehicle, to transmit a secondary data signal, including a state of a buckle that is detected by a seat belt sensor, through the wireless communication, and to switch to a sleep state after the secondary data signal is transmitted, and a primary controller provided in the vehicle and configured to receive and store the secondary data signal wirelessly transmitted by each of the secondary controllers and to transmit the stored secondary data signal to a vehicle system controller.

Abstract: Disclosed is a seat belt wireless communication system. The system includes a detection unit provided in each seat and detecting a first signal indicating whether or not a seat belt is fastened and a second indicating a battery state, a sub-control unit provided in the each seat and transmitting the first signal and the second signal through wireless communication; and a main control unit, performing the wireless communication with each of the sub-control units, causing the sub-control unit to wake up through the wireless communication, receiving the first signal and the second signal from the sub-control unit, determining whether or not a belt of the each seat is fastened and a charged state of a battery, and controlling an output through the first signal and the second signal.

Abstract: A seat belt wireless communication system and method are provided. The system comprises a fastening detection means, provided for each seat of a vehicle, configured to detect whether a seat belt is fastened for each seat, a slave controller configured to wake up, through wireless communication with the vehicle, transmit a slave data signal comprising a buckle state detected by the fastening detection means through wireless communication, and switch to a sleep state after transmitting the slave data signal, a master controller configured to receive and store a slave data signal wirelessly transmitted from each slave controller, and transmit the stored slave data signal to a system controller of the vehicle, and a harvesting circuit unit configured to perform energy harvesting in a process in which the master controller is configured to wirelessly transmit a harvesting signal, and each slave controller is configured to receive the harvesting signal.

Abstract: A system for and a method of wireless communication with a seat belt includes a seat belt sensor provided on a per-seat basis and configured to detect whether or not a seat belt is fastened, a secondary controller provided on a per-seat basis and configured to wake up through wireless communication with a vehicle, to transmit a secondary data signal, including a state of a buckle that is detected by a seat belt sensor, through the wireless communication, and to switch to a sleep state after the secondary data signal is transmitted, and a primary controller provided in the vehicle and configured to receive and store the secondary data signal wirelessly transmitted by each of the secondary controllers and to transmit the stored secondary data signal to a vehicle system controller.

Abstract: The present disclosure discloses a wireless sensing system of a seat position and a control method of the sensing system, the system including a slave control unit provided for each seat to detect a seat belt fastening status and a seat occupancy status by a passenger, and a master control unit provided in a vehicle to receive data based on a radio signal of the slave control unit through radio communication with each slave control unit, calculate a position of each slave control unit based on the data received through the radio communication, and discontinue a position checking of a slave control unit when it is determined that the position of the slave control unit calculated for each slave control unit is outside the vehicle.

Abstract: A system for managing a seat occupancy status by a passenger and a control method of the system includes a seat belt sensor provided for each seat to detect a fastening or unfastening of the seat belt, a pressure detection unit provided for each seat to detect occupancy or non-occupancy of a seat by a passenger and pressure of the seated passenger, a secondary control unit provided for each seat and woken up by radio communication with a vehicle to alert to an unfastened state of the seat belt when the seat belt is unfastened upon determining, by a seat belt sensor, whether the seat belt is fastened, and a primary control unit provided in the vehicle to perform radio communications with each secondary control unit and check an abnormality based on reception or non-reception of the system data transmitted from the secondary control unit.

Abstract: Disclosed is a seat belt wireless communication system. The system includes a detection unit provided in each seat and detecting a first signal indicating whether or not a seat belt is fastened and a second indicating a battery state, a sub-control unit provided in the each seat and transmitting the first signal and the second signal through wireless communication; and a main control unit, performing the wireless communication with each of the sub-control units, causing the sub-control unit to wake up through the wireless communication, receiving the first signal and the second signal from the sub-control unit, determining whether or not a belt of the each seat is fastened and a charged state of a battery, and controlling an output through the first signal and the second signal.

Abstract: Disclosed are a seat belt wireless communication system and method. The seat belt wireless communication system includes sensing units provided in respective seats and configured to sense whether or not to fasten seat belts, sub-ECUs provided in the respective seats and configured to transmit signals indicating whether or not to fasten the seat belts, sensed by the sensing units, through wireless communication, and a main ECU provided in a vehicle and configured to perform wireless communication with the respective sub-ECUs, to wake up the sub-ECUs through wireless communication, to determine whether or not to fasten the seat belts of the respective seats by receiving the signals from the sub-ECUs after wake-up of the sub-ECUs, and to determine, when the main ECU does not receive a corresponding one of the signals from at least one of the sub-ECUs B, that the corresponding sub-ECU has failed.

Abstract: A technology is provided that secures the straightness of an electromagnetic wave signal transmitted and received according to the fastening of a buckle. A wireless seatbelt reminder device includes a tunnel member that is disposed in parallel to a seat rail, and has a passage formed therein. A sub-transmission and reception unit transmits an electromagnetic wave signal in the longitudinal direction of the passage as a seatbelt is fastened to a buckle and a main transmission and reception unit receives the electromagnetic wave signal transmitted by the sub-transmission and reception unit inside the passage to transfer the electromagnetic wave signal to an integrated controller.

Abstract: A system for providing an alarm indicating a non-fastening state of a seatbelt of a vehicle is provided. The system includes a seatbelt part provided in a seat of the vehicle; a first controller connected in communication to the seatbelt part and configured to determine whether a buckle of the seatbelt part is fastened and a first sensor module connected to the first controller. The first sensor module includes a first transmitter configured to transmit a buckle fastening signal when the buckle is fastened. A second sensor module includes a first receiver that is configured to receive the buckle fastening signal from the first sensor module. A second controller is connected in communication to the second sensor module, and is configured to receive the buckle fastening signal and output an alarm indicating whether the seatbelt is fastened.

Abstract: A technology is provided that secures the straightness of an electromagnetic wave signal transmitted and received according to the fastening of a buckle. A wireless seatbelt reminder device includes a tunnel member that is disposed in parallel to a seat rail, and has a passage formed therein. A sub-transmission and reception unit transmits an electromagnetic wave signal in the longitudinal direction of the passage as a seatbelt is fastened to a buckle and a main transmission and reception unit receives the electromagnetic wave signal transmitted by the sub-transmission and reception unit inside the passage to transfer the electromagnetic wave signal to an integrated controller.

Abstract: A system for providing an alarm indicating a non-fastening state of a seatbelt of a vehicle is provided. The system includes a seatbelt part provided in a seat of the vehicle; a first controller connected in communication to the seatbelt part and configured to determine whether a buckle of the seatbelt part is fastened and a first sensor module connected to the first controller. The first sensor module includes a first transmitter configured to transmit a buckle fastening signal when the buckle is fastened. A second sensor module includes a first receiver that is configured to receive the buckle fastening signal from the first sensor module. A second controller is connected in communication to the second sensor module, and is configured to receive the buckle fastening signal and output an alarm indicating whether the seatbelt is fastened.

Abstract: A height adjuster of a seat belt for a vehicle may include a rail bracket configured to be fixedly mounted on a vehicle body so that rail grooves are formed to be continuously connected and the rail grooves are vertically disposed on the rail bracket, a slider configured to be coupled to the rail bracket and moving along a length direction of the rail bracket and having left and right surfaces provided with guide grooves so as to be fitted in edge portions of the rail bracket which are provided with the rail grooves, and a locking mechanism configured to be coupled to the slider so as to elastically slidably move and restrict a movement of the slider at a time of contacting the rail groove and release the restriction of the movement of the slider at a time of being separated from the rail groove.

Abstract: A height adjuster of a seat belt for a vehicle may include a rail bracket configured to be fixedly mounted on a vehicle body so that rail grooves are formed to be continuously connected and the rail grooves are vertically disposed on the rail bracket, a slider configured to be coupled to the rail bracket and moving along a length direction of the rail bracket and having left and right surfaces provided with guide grooves so as to be fitted in edge portions of the rail bracket which are provided with the rail grooves, and a locking mechanism configured to be coupled to the slider so as to elastically slidably move and restrict a movement of the slider at a time of contacting the rail groove and release the restriction of the movement of the slider at a time of being separated from the rail groove.

Abstract: A seat belt pretensioner may include a cylinder, a piston slidably disposed in the cylinder, a gas generator installed to rear end portion of the cylinder and configured to supply a propellant gas to the piston for moving the piston in a forward direction, a first direction conversion unit disposed between the gas generator and the piston and connected to the cylinder, and a coupling member for coupling a seat belt and the piston, wherein a portion of the coupling member is engaged with the first direction conversion unit so as to change a movement direction of the coupling member while the piston moves in the forward direction, and a reward movement restriction member configured to restrict a rearward movement of the piston while the piston moves in the forward direction by the propellant gas of the gas generator.

Abstract: A seat belt tensioner includes a guide, which has a pair of opposing plates connected by a connector, a wire, a first end of which extends upward to be connected to a seat belt, a central portion of which is curved to extend around the connector, and a retracting mechanism, which is connected to the second end of the wire and is operated by an external signal in an emergency. Here, the connector is integrally formed with at least one of the plates. Thus, the seat belt tensioner enables structural simplification, easy assembly, and a reduction in the number of parts.

Abstract: The present invention provides a locking unit for a seat belt retractor which is provided on one end of a spool, around which a seat belt is wound. The locking unit of the present invention locks the seat belt when the seat belt is rapidly unwound and prevents the seat belt from being locked when it is retracted. The locking unit includes a locking arm, a central gear, which is unrotatably provided on the center of the spool, an actuating gear, and a locking pin, which stops a locking protrusion of the locking arm when the belt is retracted.

Abstract: A seat belt pretensioner may include a cylinder, a piston slidably disposed in the cylinder, a gas generator installed to rear end portion of the cylinder and configured to supply a propellant gas to the piston for moving the piston in a forward direction, a first direction conversion unit disposed between the gas generator and the piston and connected to the cylinder, and a coupling member for coupling a seat belt and the piston, wherein a portion of the coupling member is engaged with the first direction conversion unit so as to change a movement direction of the coupling member while the piston moves in the forward direction, and a reward movement restriction member configured to restrict a rearward movement of the piston while the piston moves in the forward direction by the propellant gas of the gas generator.

Abstract: A seat belt tensioner includes a guide, which has a pair of opposing plates connected by a connector, a wire, a first end of which extends upward to be connected to a seat belt, a central portion of which is curved to extend around the connector, and a retracting mechanism, which is connected to the second end of the wire and is operated by an external signal in an emergency. Here, the connector is integrally formed with at least one of the plates. Thus, the seat belt tensioner enables structural simplification, easy assembly, and a reduction in the number of parts.