Autonomous Driving Controller Using Multi-Source Sensor Fusion
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Solution Overview
Problem
The reliability of autonomous vehicle driving is compromised by errors in sensors used for recognizing surroundings, leading to unreliable information and degraded driving performance.
Innovation Solution
An apparatus and method that utilize a communication device to receive determination values from surrounding vehicles and servers, along with sensors to sense surroundings, to calculate a final determination value for controlling autonomous driving, adjusting vehicle reliability indices based on the comparison between sensed and received values, and using weights to combine these values for improved decision-making.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If sensor information is used for autonomous driving control, then the vehicle can perform autonomous driving operations, but the reliability of driving control degrades due to sensor errors
Solution Approach 1:
The patent combines determination values from multiple sources (subject vehicle's own sensor, surrounding vehicles, and server) into a final determination value through weighted integration. This merging of multiple information sources compensates for the unreliability of individual sensor readings and improves overall driving control reliability while maintaining autonomous operation.
2Reliability
If multiple determination values from different sources are integrated, then the reliability of autonomous driving is improved, but the device complexity increases
Solution Approach 1:
The patent introduces a server as an intermediary that collects, processes, and distributes determination values from multiple vehicles and sources. This intermediary architecture simplifies the complexity for individual vehicles by centralizing the data aggregation and weighting calculations, while still achieving improved reliability through multi-source integration.
Solution Approach 2:
The server performs multiple functions including collecting sensor data from various vehicles, calculating determination values, storing historical data, and distributing results back to vehicles. This multi-functional approach consolidates complex operations into a single universal platform, reducing overall system complexity while improving reliability.
3Speed
If real-time sensor data is processed for autonomous driving, then responsive control is achieved, but measurement precision degrades due to sensor errors
Solution Approach 1:
The patent implements a feedback mechanism where determination values from surrounding vehicles and the server are continuously compared with the subject vehicle's own sensor data. The weighted final determination value provides feedback that corrects precision errors in real-time, maintaining both fast response and high measurement accuracy for autonomous driving control.
Data Source
AI summary
An apparatus for controlling autonomous driving of a vehicle includes a communication device configured to receive a first determination value, which is calculated based on information obtained as surroundings are sensed, from a surrounding vehicle or configured to receive a second determination value from a server. The apparatus includes a sensor configured to sense surroundings of a subject vehicle. The apparatus includes a controller configured to: calculate a third determination value based on information sensed by the sensor; to calculate a final determination value based on at least one of the first determination value and the second determination value, and the third determination value; and to control the autonomous driving by using the final determination value.