METHOD AND SYSTEM OF A VEHICLE FOR REVERSIBLE SEAT BELT RETRACTION

摘要

A method performed by a retraction control system of a vehicle for controlling refraction of a seat belt of a reversible seat belt refractor arrangement for a vehicle occupant is provided. The control system determines fulfillment of an activation condition based on an initiating input derived from a vehicle situation sensing system, which initiating input indicates that the vehicle, at an initiating time instant, is considered likely to be, or is about to become, involved in a hazardous situation and/or uncomfortable dynamic situation. The control system generates an activation signal utilizable for initiation of retraction of the seat belt. If the control system determines absence of fulfillment of a confirming condition within a predetermined confirming time period, and/or if the control system determines fulfillment of an abort condition within a predetermined abort time period, the control system generates a deactivation signal utilizable for aborting the initiation.

主权项

1. A method performed by a retraction control system of a vehicle for controlling retraction of a seat belt of a reversible seat belt retractor arrangement for a vehicle occupant, the method comprising:
determining fulfillment of an activation condition (C-Activate) based on an initiating input derived from a vehicle situation sensing system, the initiating input indicating that the vehicle, at an initiating time instant, is considered likely to be, or is about to become, involved in a hazardous situation and/or uncomfortable dynamic situation; generating an activation signal (S-Activation) utilizable for initiation of retraction of the seat belt; and upon determining absence of fulfillment of a confirming condition (C-confirm) within a predetermined confirming time period (ΔC), and/or upon determining fulfillment of an abort condition (C-Abort) within a predetermined abort time period (ΔA), generating a deactivation signal (S-Deactivation) utilizable for aborting the initiation; wherein the confirming time period (ΔC) and the abort time period (ΔA) respectively fall within a predetermined non-restraining time period (ΔN-R) characterizing the reversible seat belt retractor arrangement, during which non-restraining time period (ΔN-R) the reversible seat belt retractor arrangement is unable to apply a noticeable restraining force by means of the seat belt to the vehicle occupant.