Host Vehicle Sensor Failure Assistance
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Solution Overview
Problem
Autonomous vehicle sensors may fail during operation, impairing vehicle control and potentially causing traffic obstruction or increased collision risk due to impaired steering and navigation systems.
Innovation Solution
A system where a host vehicle's computer detects sensor failures in a client vehicle through wireless communication and modifies its control area to provide corrective control instructions, ensuring safe navigation and preventing accidents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If autonomous vehicle sensors are used for vehicle operations, then vehicle automation and navigation capability are improved, but sensor failure risk and system reliability are worsened
Solution Approach 1:
The patent introduces a host vehicle as an intermediary system that receives sensor data from the client vehicle, processes it independently, and provides control instructions to the client vehicle. This mediator approach allows the client vehicle to maintain automation while having a backup system that can compensate for sensor failures, thereby resolving the contradiction between automation extent and sensor reliability.
2Object-affected harmful factors
If a host vehicle provides control instructions to a client vehicle with sensor failure, then safety and collision prevention are improved, but vehicle control complexity and communication requirements are worsened
Solution Approach 1:
The host vehicle system is designed to autonomously detect sensor failures in the client vehicle, determine appropriate control instructions, and communicate them without requiring external intervention or complex coordination with other systems. The system serves itself by having the host vehicle's computer independently handle the entire process from failure detection to control instruction execution, reducing overall system complexity.
3Reliability
If the host vehicle modifies its control area to include the client vehicle location, then assistance capability and safety are improved, but communication overhead and system coordination are worsened
Solution Approach 1:
The host vehicle computer pre-establishes communication protocols and control area definitions before sensor failures occur. By having the control area modification and communication framework prepared in advance, the system can quickly respond to sensor failures without requiring complex real-time negotiations or information exchange, thereby reducing communication overhead while maintaining high control reliability.
Data Source
AI summary
A computer is programmed to receive a message from a second vehicle indicating a fault in a second vehicle component. The computer is further programmed to modify an area of control of the first vehicle to include a location of the second vehicle, and to provide a control instruction to the second vehicle.