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Systematic CAN Based Abort Feature for Safety Barrier Vehicular Testing

IP.com Disclosure Number: IPCOM000243728D
Publication Date: 2015-Oct-15
Document File: 2 page(s) / 259K

Publishing Venue

The IP.com Prior Art Database

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Systematic CAN-Based Abort Feature for Safety Barrier Vehicular Testing

Background:

New keyless ignition systems (KIS) use elaborate schemes to preserve battery life while in Start/Ready mode. Vehicle Safety impact evaluations do not carry live fuel; nor is it acceptable to emit exhausts fumes within closed structures. Therefore battery power replenishment strategies (such as Run/Start mode - i.e. active combustion engine to power alternator) are not available options. Testing is limited to battery life cycle only. If during a crash test evaluation, the KIS disengages vehicle systems to reduce battery load, up to and including Start/Ready mode shutdown, valuable data and resources are lost.

Objectives:

The objective here is to develop a smart system that aborts the test automatically when the vehicle's power source is not available. This method prevents the loss of time, labor, and incurred test expenses. The system will aid designers and test engineers with predefined critical system evaluations and eliminate compromising results by aborting the test. If, for example, during the test but before impact the Air bag warning lamps illuminate or faulted messages are broadcasted over the CAN network, an abort feature initiates.

Concept and Methodology:

The current situation utilizes CAN Bus to collect vehicle data only, as shown in figure 1.

Figure 1: Current Communication

However the proposed solution is: To install a CAN/Barrier interface to monitor ignition status and other cri...