Integrated Braking Controller for ADAS Signal Conflict Resolution
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Solution Overview
Problem
Conventional vehicle systems face difficulties in managing and integrating multiple control signals from various sensors, leading to signal collisions and complex specification management, particularly in advanced driver assistance systems (ADAS), where overlapping braking signals can cause conflicts.
Innovation Solution
A vehicle system that includes multiple sensors to detect objects and output detection signals, a controller to select a single detection signal based on predetermined priority, and a braking device driver to generate an integrated control signal, comparing steering torque signs and magnitudes to resolve signal conflicts and prioritize braking operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple sensors perform multiple functions in ADAS systems, then system functionality and detection capability are improved, but specification management and quality control become difficult
Solution Approach 1:
The patent merges multiple braking signal inputs from different sensors (forward collision warning, lane keeping assist, blind spot detection) into a single integrated braking control system. The controller consolidates these separate detection signals into one unified braking command, reducing management complexity while maintaining multi-functional capability.
Solution Approach 2:
The braking control system is designed with universal functionality to handle multiple types of detection signals from various sensors through a single integrated controller. This multi-functional design allows the same system to process different sensor inputs (steering torque, braking force, longitudinal force) using unified control logic.
2Ease of operation
If each sensor outputs control signals according to conventional manner, then individual sensor operation is simple, but collision occurs between systems when control signals are overlapped
Solution Approach 1:
The patent introduces an intermediary integrated braking control system that mediates between multiple sensors and the final braking execution. This intermediary controller receives signals from various sensors, resolves potential conflicts through priority-based selection, and outputs a single coordinated braking command, preventing signal collisions while maintaining sensor operation simplicity.
Solution Approach 2:
The system implements feedback mechanisms where the controller continuously monitors detection signals from multiple sensors and adjusts braking commands based on signal priority and current vehicle state. This feedback loop ensures that when multiple sensors activate simultaneously, the system responds with appropriate priority-based signal selection, avoiding harmful signal collisions.
3Reliability
If multiple braking signals are simultaneously output from different systems, then comprehensive safety coverage is improved, but signal collision and control conflict occur
Solution Approach 1:
The patent changes the parameter of signal integration by introducing priority levels and weighting factors for different detection signals. The controller evaluates steering torque, braking force, and longitudinal force parameters along with their associated priorities, transforming multiple simultaneous signals into a single integrated command through parameter-based selection rather than simple signal summation.
4Quantity of substance
If a single sensor performs multiple functions, then component quantity is reduced, but control signal overlap and collision become more frequent
Solution Approach 1:
The integrated braking controller serves as an intermediary that receives and coordinates signals from multiple functional sensors. This mediator resolves potential collisions by applying priority-based selection logic, ensuring that when sensors for different functions (collision warning, lane keeping, blind spot detection) operate simultaneously, their control signals are harmonized rather than conflicting.
Data Source
AI summary
In accordance with one aspect of the present disclosure, a vehicle may include a plurality of sensors configured to detect an object and to output a plurality of detection signals having a steering torque related to a result of detection; a braking device driver configured to drive a driving device of the vehicle; and a controller configured to select a single detection signal among the plurality of detection signals based on a predetermined priority, and configured to output an integrated control signal controlling the braking device driver based on the determined steering torque of the detection signal.