A steering column system of a vehicle includes: a rotatable, hollow steering shaft that has a proximal end attached to a steering wheel and is configured to transfer rotational input at the steering wheel to a steering rack of the vehicle; a stationary driver-side airbag (DAB) shaft that is surrounded by the steering shaft and extends along the steering shaft; and a DAB module that contains an airbag and is fixedly mounted to a proximal end of the DAB shaft within a region of the steering wheel. The airbag contained in the DAB module is formed to have a substantially circular center chamber and a pair of side extension chambers, one of the side extension chambers disposed on a right side of the center chamber, and the other of the side extension chambers disposed on a left side of the center chamber.

A control device of an electromagnetic actuator for a restraint device, including an evaluation and control unit which generates a control signal which predefines a control sequence having control time periods, in which the actuator is activated, and pause time periods, in which the actuator is deactivated. A protective circuit including a counter is provided, the counter monitoring the control sequence and increments its counter content during the at least one control time period and decrements its counter content during the at least one pause time period, the protective circuit effectuating a deactivation of the actuator when the counter content reaches or exceeds a predefined first threshold value, and allows a reactivation of the actuator when the counter content reaches or falls below a predefined second threshold value after reaching or exceeding the first threshold value, the first counter content being greater than the second counter content.

A control device of an electromagnetic actuator for a restraint device, including an evaluation and control unit which generates a control signal which predefines a control sequence having control time periods, in which the actuator is activated, and pause time periods, in which the actuator is deactivated. A protective circuit including a counter is provided, the counter monitoring the control sequence and increments its counter content during the at least one control time period and decrements its counter content during the at least one pause time period, the protective circuit effectuating a deactivation of the actuator when the counter content reaches or exceeds a predefined first threshold value, and allows a reactivation of the actuator when the counter content reaches or falls below a predefined second threshold value after reaching or exceeding the first threshold value, the first counter content being greater than the second counter content.

An airbag device, comprising: a gas generation device that is operable to generate gas; and an airbag that includes: a first chamber portion that is disposed at a vehicle front side of a vehicle seat on which a vehicle occupant sits, the first chamber portion being inflated due to gas generated by the gas generation device being supplied into the first chamber portion, a second chamber portion that is inflated due to gas generated by the gas generation device being supplied into the second chamber portion and that is disposed adjacent to the first chamber portion in a vehicle width direction, and a connection portion.

In one embodiment, a passenger-side airbag is inflated and deployed between a passenger's seat and an instrument panel. The airbag includes an airbag body; and a patch cloth provided on an outer surface of a forward part of the airbag body. A side patch cloth provided on respective side parts of the airbag body has a slit.

In one embodiment, a passenger-side airbag is inflated and deployed between a passenger's seat and an instrument panel. The airbag includes an airbag body; and a patch cloth provided on an outer surface of a forward part of the airbag body. A side patch cloth provided on respective side parts of the airbag body has a slit.

A device for controlling a volumetric flow rate of a medium stored under pressure in order to activate an impact protection device, having a control module that includes a valve body having a stepped through-opening, and a control piston guided axially in the through-opening of the valve body, and a control valve that influences the movement of the control piston, the valve body having at a first end a closable medium inlet opening having a valve chamber. The control valve and the control module are situated in a common housing sleeve, the valve body of the control module being pressed into a first end of the housing sleeve until it comes to a stop on a housing shoulder, and the control valve being introduced into and fixed in a second end of the housing sleeve.

A pressurization device for pressurizing an enclosure may include a container containing a pressurized fluid, a pin that is inserted into the container, an actuator, and a heating device operably coupled to the actuator. The actuator may initially hold the pin in a closed position and allow the pin to move to an open position, disengaging from the container when the actuator increases in temperature. The pressurized fluid may force the pin toward the open position to release the pressurized fluid from the container. The actuator may include a frangible hollow bulb configured to fracture at a pre-defined temperature. The pressurized fluid may be vented into the enclosure through at least one fluid passage in fluid communication between the enclosure and the container.

A pressurization device for pressurizing an enclosure may include a container containing a pressurized fluid, a pin that is inserted into the container, an actuator, and a heating device operably coupled to the actuator. The actuator may initially hold the pin in a closed position and allow the pin to move to an open position, disengaging from the container when the actuator increases in temperature. The pressurized fluid may force the pin toward the open position to release the pressurized fluid from the container. The actuator may include a frangible hollow bulb configured to fracture at a pre-defined temperature. The pressurized fluid may be vented into the enclosure through at least one fluid passage in fluid communication between the enclosure and the container.

A valve for a cold gas generator for an airbag in a vehicle includes: a valve chamber; a control chamber; a control piston; an overflow channel; a retaining element; and a shutoff element. The valve chamber includes an inlet from the cold gas generator and an outlet to the airbag. The control piston separates the control chamber and the valve chamber. The control piston is movable between an open position and a closed position, the control piston releasing the outlet in the open position and closing it in the closed position. The control piston has (i) a first active piston surface on the side of the valve chamber, and (ii) a second active piston surface on the side of the control chamber. The first piston surface is smaller than the second piston surface. The overflow channel fluidically connects the valve chamber and the control chamber to one another.