Multistage pretension formula safety belt control system of main passive integrated

The utility model discloses a multistage pretension formula safety belt control system of main passive integrated, sensor module detect driving environment, driving situation and with signal transferto ECU, and ECU judges the danger classes of car according to the received signal, sends corresponding instruction according to the danger classes, does control pretension motor carry out " early warning the adjustment the restraint reset " multistage pretension action. Does this system adopt " early warning the adjustment the restraint reset " multistage pretension design, the passenger's security under different work condition, the different position of sitting has improved, carry out real -time optimization calculation through embedding the algorithm to the pretightning force, improved passenger's travelling comfort, regard driver's control signal as one of triggering signal, compensatied the risk of initiative safety precaution system " erroneous judgement ", " failing to judge " underadverse circumstances, im