Controlling Airbags with Solenoids

Air Bag Testing Dummy

TLX designs solenoids that solve our customers' unique dilemmas. This is an example of how TLX ingenuity was applied in the field.

Airbags have evolved from a single safety measure to intricate systems that use multiple sensors and sophisticated software algorithms. Modern airbag systems deploy based on a list of variables: is the seat occupied, how much does the person weigh, are they wearing a seat belt, how fast is the car traveling.

Customer Problem

In order to further protect passengers from injury, manufacturers sought to control airbag inflation based on variables programmed into the system, which determined the severity of the accident.

TLX Solution

A manual reset latching solenoid provided the best solution for this application. When the airbag did not need to be completely inflated, a short electrical pulse cancelled the permanent magnet holding the solenoid in position. Once de-latched, the solenoid opened a pressure relief valve to vent excess gas not needed for airbag inflation, preventing additional injury to passengers. Since the solenoid needed to be manually reset, it would not return to the latched position accidentally during the accident.

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Quality Policy

TLX Technologies, LLC will consistently provide products that meet or exceed the requirements of our customers. The company complies with all of the requirements of the ISO 9001:2015 Quality Management System Standard. We will establish, monitor and work to continuously improve customer satisfaction, technology, productivity, quality and employee engagement.