Variable force limiter control system for vehicle

A variable force limiter control system for a vehicle, the variable force limiter control system comprising:

• a variable force limiter configured to change a force limiter load for a seatbelt in an event of a collision of the vehicle;
• a relative speed sensor configured to detect a relative speed between the vehicle and a collision object before the collision;
• an acceleration sensor configured to detect an acceleration of the vehicle;
• an electronic control unit configured to predict a severity of the collision based on the relative speed and control the force limiter load based on the predicted severity and the acceleration in an initial stage of the collision,
• wherein
• the variable force limiter is configured to switch a mode of the force limiter load from a high-load mode to a low-load mode,
• the electronic control unit is configured to control switching of the mode of the force limiter load, and
• the electronic control unit is configured to, in response to a determination that there is a possibility that the occupant collides with a vehicle interior component located forward of the occupant, keep the mode of the force limiter load in the high-load mode.

A variable force limiter control system for a vehicle, the variable force limiter control system comprising:

• a variable force limiter configured to change a force limiter load for a seatbelt in an event of a collision of the vehicle;
• a relative speed sensor configured to detect a relative speed between the vehicle and a collision object before the collision;
• an acceleration sensor configured to detect an acceleration of the vehicle;
• an electronic control unit configured to predict a severity of the collision based on the relative speed and control the force limiter load based on the predicted severity and the acceleration in an initial stage of the collision;
• and
• a build sensor configured to detect a build of an occupant wearing the seatbelt, wherein
• the variable force limiter is configured to switch a mode of the force limiter load from a high-load mode to a low-load mode,
• the electronic control unit is configured to control switching of the mode of the force limiter load, and
• the electronic control unit is configured to predict a maximum forward stroke of the occupant with respect to the vehicle in the event of the collision in a case where the mode of the force limiter load is the low-load mode based on the build of the occupant and the predicted severity.