Vehicle Manager Arbitration for ADAS Lateral Motion Control
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Solution Overview
Problem
Current vehicle management systems lack a detailed method for generating information representing lateral-direction motion, which is essential for advanced driver assistance systems (ADAS) to effectively control vehicle steering and curvature.
Innovation Solution
A manager system installed in vehicles that accepts kinematic plans from ADAS applications, performs arbitration, and outputs necessary information to actuator systems, while also providing second information for generating lateral-direction motion data to ADAS applications, including steering angle and curvature calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If ADAS applications generate lateral-direction motion information independently, then application functionality is complete, but processing load and system complexity increase
Solution Approach 1:
The patent extracts the lateral-direction motion information generation function from the ADAS applications and relocates it to the manager. The manager now generates steering angles and curvature values independently, while applications only receive these pre-generated values. This extraction reduces application complexity while maintaining complete functionality.
Solution Approach 2:
The patent introduces the manager as an intermediary component between the actuator systems and ADAS applications. The manager acts as a mediator that generates lateral-direction motion information and distributes it to applications, eliminating the need for applications to perform complex calculations themselves.
2Adaptability or versatility
If multiple ADAS applications request actuator control, then system functionality is enhanced, but arbitration complexity increases
Solution Approach 1:
The patent merges the arbitration function into the manager, which centrally handles requests from multiple ADAS applications. Instead of each application managing its own control logic, all applications converge their requests at the manager, which performs unified arbitration and coordinates actuator control, simplifying the overall system architecture.
3Measurement precision
If the manager outputs detailed lateral-direction motion information, then application accuracy improves, but communication data volume increases
Solution Approach 1:
The patent applies local quality by providing different levels of information detail to different applications based on their specific needs. The manager generates precise steering angles and curvature values, but applications receive only the specific parameters they require for their functions, optimizing both accuracy and communication efficiency.
Data Source
AI summary
A manager is installed in a vehicle. The manager includes: an accepting unit that accepts, from a plurality of advanced driver assistance system applications, a plurality of kinematic plans including first information that is information representing lateral-direction motion of the vehicle; an arbitration unit that performs arbitration of the kinematic plans; a first output unit that distributes a motion request based on a result of arbitration performed by the arbitration unit to at least one of a plurality of actuator systems; and a second output unit that outputs second information used for generating the first information to at least one of the ADAS applications.