Redundant Sensor and Power Layout for Vehicle Control Reliability
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Solution Overview
Problem
Existing vehicle control systems lack an appropriate redundant configuration for external sensors, which is crucial for ensuring safety and reliability in sustainable transportation systems.
Innovation Solution
A vehicle control device and method incorporating multiple sensors (cameras and radar devices) with redundant power and processing units, where different sensors and processors are connected via communication networks of varying capacities and speeds, allowing for backup operation in case of defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a redundant configuration is implemented for external sensors, then reliability is improved, but device complexity increases
Solution Approach 1:
The system is divided into multiple independent sensor groups (first group with first sensor, second group with second sensor, third group with third sensor) that can operate autonomously. Each group has its own processing device and power supply, allowing segmentation of functions to achieve redundancy without requiring a completely duplicated complex system.
Solution Approach 2:
The processing devices are designed to handle inputs from multiple sensor types (camera, radar, LIDAR) and perform multiple functions including defect determination, alternative control, and information transmission. This multi-functionality reduces the need for separate dedicated components for each function, thereby reducing overall system complexity while maintaining reliability.
2Reliability
If multiple sensors and processing devices are used, then safety is improved, but ease of operation deteriorates
Solution Approach 1:
The system automatically monitors its own operational status through defect determination units that continuously assess sensor and processing device functionality. When defects are detected, the system self-manages the transition to alternative control modes without requiring manual intervention, thereby maintaining ease of operation despite the complex redundant architecture.
Solution Approach 2:
The system implements continuous feedback loops where defect information is transmitted between processing devices and control units. This feedback mechanism enables automatic adjustment of operational modes based on real-time sensor status, simplifying operation by eliminating the need for manual system reconfiguration while maintaining high safety standards.
Data Source
AI summary
A vehicle control device includes an external sensor, a processing device performing a predetermined process associated with a vehicle, a control device controlling traveling of the vehicle, and a power supply supplying electric power to the external sensor and the processing device. The external sensor includes a first sensor, a second sensor, and a third sensor, the processing device includes a first processing device and a second processing device, outputs of the first sensor and the second sensor are output to the first processing device, and an output of the third sensor is output to the second processing device. The power supply includes a first power supply and a second power supply, the first power supply supplies electric power to the first sensor, the third sensor, and the first processing device, and the second power supply supplies electric power to the second sensor and the second processing device.