By-Wire Vehicle Controls With Tactile Feedback for Actuator Deviation
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Solution Overview
Problem
Existing drive-by-wire systems in motor vehicles do not effectively notify users of actuator quality degradation due to aging and wear, leading to unnoticed changes in vehicle control behavior.
Innovation Solution
Implement a method where tactile feedback is applied to the control element when deviations from target behavior are detected in the actuator unit, adjusting the feedback intensity based on the degree of deviation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If tactile feedback is applied to notify users of actuator degradation, then user perception of actuator behavior changes is improved, but device complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where tactile feedback is applied to the control element when actuator degradation is detected. The control unit monitors actuator performance and triggers tactile notifications through the feedback actuator, creating a closed-loop system that informs users of quality changes without requiring complex additional hardware
Solution Approach 2:
The feedback actuator serves as an intermediary component that translates detected actuator degradation into tactile sensations for the user. This mediator converts internal system state changes into perceptible external signals, enabling communication of quality changes through a simple mechanical interface
2Ease of operation
If mechanical decoupling is used between control element and actuator unit, then ease of operation is improved, but loss of information about actuator quality occurs
Solution Approach 1:
The patent reintroduces feedback through the feedback actuator that applies tactile sensations to the control element based on actuator performance monitoring. This creates an information loop that compensates for the mechanical decoupling, allowing users to perceive actuator quality changes despite the lack of direct mechanical connection
Solution Approach 2:
The system separates the control element from the actuator unit mechanically while maintaining information flow through electronic monitoring and tactile feedback. This segmentation allows independent optimization of control interface and actuator performance while preserving user awareness of system state
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
Enhances user perception of actuator behavior changes, allowing for timely adjustments and maintaining consistent vehicle control quality.
Implementation Method 1
tactile feedback is applied to the control element upon actuation
Data Source
AI summary
The present disclosure relates to a method for operating an operating system (1.1, 1.2, 1.3) of a motor vehicle, in which a control command (M1) for controlling the motor vehicle is specified via a control element (3.1, 3.2, 3.3), the control command (M1) specified via the control element (3.1, 3.2, 3.3) is sensorially acquired and passed on from an electronic control unit (4) to an electromechanical actuator unit (5.1, 5.2, 5.3) as a control signal, wherein the actuator unit (5.1, 5.2, 5.3) implements the control command (M1) according to the control signal. The operating system (1.1, 1.2, 1.3) is monitored here for an occurrence of a deviation from a target behaviour of the actuator unit (5.1, 5.2, 5.3), wherein tactile feedback is applied to the control element (3.1, 3.2, 3.3) if a deviation is detected.