A plus-two-point belt system is disclosed. The plus-two-point belt system includes a longitudinal webbing anchored at a first end to a seat and fixed at a second end to a retractor. The webbing is extendable from the retractor to allow an occupant to slip their arm under the webbing to provide a supplemental restraint. The webbing includes first and second portions where the second portion is retractably coiled on the retractor and the second portion has at least one conductive marker. A sensor is provided to sense the marker and a processor is provided to set an alarm when the marker is not detected.

Safety apparatus for indicating the usage state of a seat belt. The seat belt has a strap spooled from a retractor and being lockable to a buckle by a tongue. The apparatus has an indicator unit for mounting to an upper part of a seat. A lock indicator is provided on the indicator unit and, in use, is operably connected to the buckle for indicating a state when the tongue has been locked into the buckle. A strap indicator is provided for indicating a state when a spooled length of the strap exceeds a threshold corresponding to a predetermined minimum length of strap needed to secure a body with the seat belt. The lock indicator and the strap indicator are detectable by a camera.

In a vehicle emergency, a spool of a webbing take-up device is rotated in a pull-out direction such that a main lock is displaced toward a rotation-radial direction outside of the spool and engages with a clutch gear configuring a first rotation body. Rotation of the spool in the pull-out direction is thus restricted. Also in a vehicle emergency, the first rotation body is rotated in a take-up direction of the spool such that the main lock engages with the first rotation body, and rotation force of the first rotation body is transmitted to the spool through the main lock and the spool is rotated in the take-up direction.

A system for detecting improper usage of a seatbelt of a vehicle includes a vehicle seat having a seat cushion and a seat back. A shoulder belt and a lap belt are intended to restrain an occupant sitting on the vehicle seat. The system includes a sensor module associated with the shoulder belt and the lap belt. The sensor module generates signals indicative of at least one parameter associated with the vehicle seat, the shoulder belt, and the lap belt when the occupant is sitting on the vehicle seat. The system also includes a controller that receives the signals indicative of the at least one parameter associated with the seat back, the shoulder belt, and the lap belt. The controller analyzes the received one or more signals, and determines whether the seatbelt is being used improperly by the occupant, based on the analysis.

A system includes a seat belt routing module and a user interface device (UID) control module. The seat belt routing module is configured to: determine a routing of a seat belt relative to an occupant in a vehicle seat based on input from a webbing payout sensor; and determine the seat belt routing based on an input from an in-cabin sensor. The in-cabin sensor includes at least one of a camera, an infrared sensor, an ultrasonic sensor, a radar sensor, and a lidar sensor. The UID control module is configured to control a user interface device to indicate that the seat belt is being worn improperly when: the seat belt routing determined using at least one of the webbing payout sensor and the in-cabin sensor is improper; and the seat belt routing determined using the webbing payout sensor corresponds to the seat belt routing determined using the in-cabin sensor.

In a vehicle emergency, a spool of a webbing take-up device is rotated in a pull-out direction such that a main lock is displaced toward a rotation-radial direction outside of the spool and engages with a clutch gear configuring a first rotation body. Rotation of the spool in the pull-out direction is thus restricted. Also in a vehicle emergency, the first rotation body is rotated in a take-up direction of the spool such that the main lock engages with the first rotation body, and rotation force of the first rotation body is transmitted to the spool through the main lock and the spool is rotated in the take-up direction.

An example embodiment of a system and methods for detecting and reporting whether passengers are seated and secured in their seats within a vehicle may include a passenger sensor configured to provide an output indicative of a presence of a passenger in a seat in a vehicle, a restraint sensor configured to provide an output indicative of a status of a passenger safety restraint associated with the seat, a transmitter configured to be in electronic communication with the passenger sensor and the restraint sensor and to wirelessly transmit data indicative of the presence of a passenger in the seat and the status of the restrain, and a reporting module configured to be disposed proximate a driver of the vehicle. The reporting module may be configured to receive the data from the transmitter, and output a respective status for each of a plurality of seats.

A method and system for determining whether a seatbelt of a vehicle is fastened is provided. The system may be configured to detect markers on a seatbelt, engage seatbelt tensioners, and determine whether the markers have moved. The system may then be configured to determine whether the seatbelt is fastened based on movement of the markers.

A vehicle seatbelt monitoring system for monitoring seatbelts of a plurality of seats comprising: i) a buckle sensor for each seat configured to determine whether a seatbelt is buckled into a buckle attachment of each seat; ii) a seatbelt webbing payout sensor for each seat configured to determine an amount of seatbelt webbing that is unwound from a seatbelt retractor associated with each seat; and iii) a seatbelt monitor control module coupled to the buckle sensor and the seatbelt webbing payout sensor and configured to receive buckle state data from the buckle sensor for each seat and seatbelt payout data from the seatbelt webbing payout sensor for each seat. The seatbelt monitor control module is further configured to determine if a first seatbelt is unbuckled or not properly worn and, if so, to determine if a second seatbelt is buckled or properly worn when the first seatbelt is unbuckled or not properly worn.

A system for detecting seatbelt routing includes: a state module configured to, based on a series of images over a period of time from a camera of a vehicle facing a seat, determine and output a routing state of a seatbelt of the seat; and a remediation module configured to, based on the routing state of the seatbelt of the seat, selectively perform at least one remedial action.