Vehicle Steering Control Using Primary and Supplemental Active Functionality
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing active steering systems face challenges in bypassing supplemental steering functionalities without affecting primary functionalities, leading to suboptimal performance in certain situations.
Innovation Solution
A method and system that selectively control actuators in vehicles using primary active steering functionality when specified errors occur, switching to both primary and supplemental functionalities when errors are absent, allowing for precise steering control without compromising primary functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If both primary and supplemental active steering functionalities are used, then steering performance is enhanced, but system complexity increases
Solution Approach 1:
The system dynamically adjusts its operational mode based on real-time conditions and error states. The supplemental active steering functionality can be dynamically enabled or disabled through selective engagement of the intermediary controller, allowing the system to transition between a dual-function high-performance mode and a single-function simplified mode without physical reconfiguration.
Solution Approach 2:
The actuator serves multiple functions by being controlled through both the supplemental and primary control paths simultaneously. A single actuator mechanism performs steering control whether operated alone by the primary system or in conjunction with the supplemental system, eliminating the need for separate actuators for each control mode and reducing overall system complexity.
Data Source
AI summary
A method for controlling steering in a vehicle includes the steps of obtaining a vehicle steering communication, controlling an actuator coupled to a hand wheel, a road wheel, or both using a primary active steering functionality, if the vehicle steering communication reflects one or more of a plurality of types of specified errors, and controlling the actuator using the primary active steering functionality and a supplemental active steering functionality, if the vehicle steering communication does not reflect one or more of the plurality of types of specified errors.