Seatbelt system

A seatbelt system for a vehicle seat, the seatbelt system comprising:

• a sensing system configured to measure a biometric of a vehicle passenger, the biometric including at least one of a vehicle passenger weight or a vehicle passenger height;
• a seatbelt assembly including:
• a seatbelt configured to secure the vehicle passenger and spread impact forces across a body of the vehicle passenger;
• a base retractor coupled to the seatbelt and configured to allow the seatbelt to extend to a desired length;
• a pretensioner coupled to the base retractor and configured to tighten slack of the seatbelt to ensure proper position of the vehicle passenger;
• an electromagnet coupled to the base retractor;
• and
• a controller communicatively coupled to the sensing system and the electromagnet, the controller configured to:
• determine a predetermined load profile for the electromagnet based on the measured biometric, the predetermined load profile defining a variable rotational resistance to be applied to a spindle over a duration of a vehicle impact event;
• and
• apply a variable current to the electromagnet during the vehicle impact event to generate the variable rotational resistance on the spindle corresponding to the predetermined load profile.

A seatbelt system for a vehicle, the seatbelt system comprising:

• a seatbelt assembly including a seatbelt, a base retractor having a spindle coupled to the seatbelt, and an electromagnet coupled to the base retractor;
• a sensing system configured to measure a biometric of a vehicle passenger, the biometric including at least one of a vehicle passenger weight or a vehicle passenger height;
• a vehicle processor for storing vehicle data including one or more of the vehicle passenger weight and the vehicle passenger height, the vehicle processor configured to:
• determine a predetermined load profile for the electromagnet based on the measured biometric, the predetermined load profile defining a variable rotational resistance to be applied to the spindle over a duration of a vehicle impact event;
• and
• apply a variable current to the electromagnet during the vehicle impact event to generate the variable rotational resistance on the spindle corresponding to the predetermined load profile;
• and
• a server communicatively coupled to the vehicle processor and configured to determine a desired load level of the electromagnet based on one or more of the vehicle passenger weight and the vehicle passenger height.