AV Fault Injection Training for Safety Driver Reaction Assessment
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Solution Overview
Problem
Current autonomous vehicle (AV) safety driver training systems lack an effective method to simulate and assess the responses of safety drivers to various vehicle operation faults in real-time, which is crucial for ensuring safe operation of AVs on public roadways.
Innovation Solution
An AV safety driver training system that injects selected vehicle operation faults into an AV operating in autonomous mode, allowing the safety driver to respond, and then records and analyzes the driver's reactions, including reaction time and input values, to generate a training session report.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fault injection training is implemented for safety drivers, then driver response capability is improved, but system complexity increases
Solution Approach 1:
The patent introduces a fault injection system as an intermediary between the autonomous vehicle and the safety driver. This system includes a fault injection module that can introduce simulated faults into vehicle systems, allowing drivers to be trained on realistic scenarios without actual danger. The system mediates between the need for realistic fault simulation and the need to maintain safe operating conditions.
Solution Approach 2:
The patent creates simplified copies or models of actual vehicle faults through the fault injection system. Instead of requiring real fault conditions which would be dangerous and unpredictable, the system generates controlled replicas of fault scenarios. These copied fault conditions allow drivers to practice responses to various failure modes in a safe, repeatable manner.
2Adaptability or versatility
If multiple vehicle operation faults are simulated, then training comprehensiveness is improved, but measurement difficulty increases
Solution Approach 1:
The patent implements a feedback mechanism through the response detection module that continuously monitors driver actions during fault injection scenarios. The system captures driver responses, measures reaction times, and provides feedback on performance metrics. This feedback loop enables comprehensive tracking of driver responses across multiple fault types and scenarios, making measurement manageable despite the complexity of various fault conditions.
Solution Approach 2:
The patent segments the complex measurement task into distinct components: fault injection events, driver response detection, reaction time measurement, and performance evaluation. By breaking down the measurement process into separate detectable elements, the system can comprehensively track multiple fault scenarios without being overwhelmed by the overall complexity. Each segment can be measured and analyzed independently.
Data Source
AI summary
A computer-implemented method and apparatus are provided for training a safety driver associated with an autonomous vehicle (AV) operating in an autonomous driving mode. The computer-implemented method includes receiving a selection of one or more vehicle operation faults that are configured to impact operation of one or more vehicle systems of the AV. The computer-implemented method also includes injecting the one or more vehicle operation faults into one or more vehicle systems of the AV and detecting one or more driver responses executed by the safety driver in response to the one or more vehicle operation faults. The computer-implemented method further includes determining a reaction time associated with the one or more driver responses. The reaction time is a measure of time it takes the safety driver to respond to the one or more vehicle operation faults.