Robotic Steering Torque Compensation to Prevent Override
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current robotic testing equipment for automated steering systems unintentionally overrides the system by inducing forces that are perceived as manual driver intervention, hindering effective performance evaluation.
Innovation Solution
A robotic driving system with a turntable, steering motor, load sensor, and controller that compensates for induced forces by calculating and adjusting steering torque to prevent override, using a load signal and known distance from the steering axis to ensure accurate performance evaluation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If robotic testing equipment is used to rotate the steering wheel, then automated steering system testing can be performed, but the equipment induces forces that are perceived as manual driver intervention, causing the automated steering system to behave as if it is being manually overridden
Solution Approach 1:
The system uses load sensors to detect forces induced by the robotic driving system components, and the controller processes this feedback information to calculate compensatory torque. The compensatory torque is then applied to counteract the harmful forces, creating a closed-loop feedback system that eliminates the perceived manual intervention and enables accurate automated steering system testing.
2Measurement precision
If load sensors and control systems are added to compensate for induced forces, then accurate performance evaluation becomes possible, but device complexity increases
Solution Approach 1:
Load sensors are introduced as intermediary devices to measure the forces induced by the robotic driving system. These sensors act as mediators between the mechanical components and the control system, providing quantitative data that enables precise calculation and compensation of harmful forces, thereby achieving accurate performance evaluation.
Solution Approach 2:
The system replaces manual driver intervention with an automated control system that uses electronic sensors and computational algorithms to generate compensatory torque. This substitution of mechanical/manual operations with electronic control mechanisms enables precise force compensation while maintaining system accuracy.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise evaluation of automated steering systems by internally compensating for robotic-induced forces, preventing unintentional override and ensuring accurate system performance assessment.
Implementation Method 1
A load sensor is mounted between the support member and the transmission housing at a known distance from the steering axis with the load sensor generating a load signal corresponding to a force experienced between the transmission housing and the support member
Data Source
AI summary
The present disclosure is generally directed to a system and method of compensating for any forces induced by components of a robotic driving system. The robotic driving system including a turntable defining a steering axis and mounted to a steering wheel of a vehicle. A robot frame is mounted to the vehicle and includes a support member. A transmission device has a transmission housing and a drive member. A steering motor is supported by the transmission housing and operatively coupled to the drive member. A load sensor is mounted between the support member and the transmission housing. A controller calculates a first torque experienced by the turntable based on a load signal and a known distance from a steering axis, and the controller determines a second torque to be applied to the steering torque based on the first torque to compensate for forces induced by the robotic driving system.