Automotive Storage Controller for Brake, Battery, and Sensor Logging
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Solution Overview
Problem
As vehicles become more autonomous, the burden of proof for accidents shifts from drivers to manufacturers, necessitating automotive storage devices that can efficiently process and store various types of information, including sensor data and internal vehicle operations, to enhance safety and reliability.
Innovation Solution
Incorporating a sensor system to detect brake pedal position, battery cell state, and external images, along with a storage controller and non-volatile memory device to generate and store vehicle information, enabling detection of defects in brake control units and battery packs, and providing data to autonomous driving systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the automotive storage device stores only minimum accident analysis information (EDR), then the device complexity is low, but the reliability and safety burden for autonomous vehicles is insufficient
Solution Approach 1:
The patent combines multiple storage functions into a single automotive storage device: accident analysis data storage, sensor data storage, internal operation data storage, and defect detection data storage. This merging approach increases reliability by comprehensive data collection while managing device complexity through integrated architecture
Solution Approach 2:
The storage device is designed with multi-functionality to handle various data types from different sources (sensors, internal operations, brake systems, battery systems). The device serves multiple purposes: accident reconstruction, real-time monitoring, defect detection, and autonomous driving support, thereby increasing reliability without requiring separate dedicated storage systems for each function
2Reliability
If the storage device stores various types of information from sensors and internal operations, then the reliability improves, but the device complexity increases
Solution Approach 1:
The patent segments data storage into different categories: accident analysis data, sensor detection data, internal operation data, and defect detection data. The storage controller manages these segmented data types separately, allowing comprehensive data collection for improved reliability while organizing complexity through structured segmentation
Solution Approach 2:
The storage controller acts as an intermediary between multiple data sources (sensors, internal systems) and the non-volatile memory device. It manages data flow, processing, and storage organization, thereby enabling comprehensive data collection for reliability while abstracting the complexity of multi-source data management
3Productivity
If the storage controller generates and processes vehicle information from detection information, then the productivity of data processing improves, but the device complexity increases
Solution Approach 1:
The storage controller performs preliminary processing of detection information to generate organized vehicle information before storage. It pre-processes sensor data, correlates multiple data streams, and structures information for efficient storage and future retrieval, thereby improving data processing productivity while managing complexity through advance organization
Solution Approach 2:
The storage controller autonomously manages data processing tasks including generating vehicle information from detection information, detecting defects in brake and battery systems, and organizing stored data. This self-service capability improves productivity by eliminating the need for external processing systems while encapsulating complexity within the controller itself
Data Source
AI summary
A vehicle system may include a sensor configured to detect at least one of a position of a brake pedal, a state of a plurality of battery cells, or a first image outside the vehicle and generate detection information, and an automotive storage device including a storage controller and a non-volatile memory device, the storage controller configured to generate vehicle information based on detection information, the vehicle information including at least one of first braking information, state-of-charge information of the plurality of battery cells, or first object information outside the vehicle, the non-volatile memory device configured to store the detection information and the vehicle information according to a control of the storage controller.