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Restraint Impact System Simulator (RISS) to Synchronize Tests and Concatenate Events Disclosure Number: IPCOM000246182D
Publication Date: 2016-May-13
Document File: 3 page(s) / 531K

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The Prior Art Database

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Restraint Impact System Simulator (RISS) to Synchronize Tests and Concatenate Events

Concatenated events are difficult to manually time while testing. Currently, there is no method to time events consistently for testing purposes. Multi events, two events within a small time period, are difficult to reproduce in testing due to a lack of method to consistently time events for testing.

Often, many tests runs are needed to capture the event sequence needed for testing resulting in extra efforts. For example, one of the tests that we run requires us to trigger certain CAN signals at specific time intervals prior to impact. To complete this test we use a tool that simulates an impact. We need to manually coordinate the trigger of both CANAZLER and the impact tool. We have to do a few runs to ensure we get the all the triggers for all the signals involved in the testing. If we had the ability to trigger specific events at a set time during the testing window, we could automate and control the current testing process.

So, the objective of this work is to develop a method that times a specific sequence of concatenated events and behaviors for testing purposes.

The Thumper apparatus allows us to simulate different impacts to the system in the lab or in portable locations and conditions. As shown in figure 1 below, it consists of main stability frame, sliding rails, tension springs, plastic/rubber mounts, Air Bag module adapter base, mounting plates, sledding fixture, peripheral sensor holders, pull-release mechanism, carrier, and track.

Adapter Base

mounting plates

peripheral sensor holders


Sliding rails


Pull mechanism Release mechanism

Figure 1: Example of current thumper designs

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This work has introduced the following new features and applications:

Switches to Monitor Travel Time and Distance

The thumper apparatus will have switches along the travel track. The lengths (d1, d2,.., dn) marking on the travel track will correlate with a time in reference to T0. These switches will allow a trigger for a switch or other input prior to T0 at a specific time interval.

CAN Signal Sequence

This setup will allow the user to inject a specified CAN signal sequence. Critica...