Redundant Control Output Switching for Dual Actuator Reliability
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Solution Overview
Problem
Current redundant electronic control systems in vehicles fail to ensure stability and safety when one component fails, leading to reduced output power and potential safety risks due to simple backup designs.
Innovation Solution
A redundant electronic control system with cross-output capabilities between two output components and a redundant control unit, allowing the system to generate and switch execution signals between actuators even if one component fails, ensuring continuous stable output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple backup design is used in redundant electronic control systems, then device complexity is reduced, but reliability deteriorates because stability cannot be ensured when one system fails
Solution Approach 1:
The patent implements cross-output capability where each output component can output execution signals to both actuators. Specifically, the first output component can output a first execution signal to the first actuator and a second execution signal to the second actuator, and similarly for the second output component. This multi-functionality ensures that when one output component fails, the other can still control both actuators, maintaining system reliability without requiring complex redundant control logic
Solution Approach 2:
The patent introduces dynamic switching capability where the control unit can flexibly allocate output components to actuators based on system status. When both output components are functional, they operate in parallel; when one fails, the control unit dynamically reconfigures the system to use the remaining functional output component for both actuators. This dynamic adaptation resolves the contradiction by providing simple backup architecture that automatically transitions to maintain reliability
2Reliability
If redundant output components are added to ensure both actuators function during failure, then reliability is improved, but device complexity increases
Solution Approach 1:
Each output component is designed with universal output capability to control either or both actuators. The first output component can control the first actuator via first execution signal and the second actuator via second execution signal, and the second output component has similar capability. This universal design ensures that redundancy is achieved through flexible signal routing rather than dedicated one-to-one mappings, maintaining reliability while controlling complexity
Solution Approach 2:
The patent merges the control pathways by allowing both output components to connect to both actuators through a unified control architecture. The control unit integrates the switching logic to manage the cross-output relationships, combining multiple control paths into a coordinated system that maintains simplicity while providing redundant functionality
Data Source
AI summary
A redundant electronic control system includes a control unit, a first output component, and a second output component. The control unit may generate a first execution signal and a second execution signal. The control unit controls the first output component to output the first execution signal to a first actuator, and controls the second output component to output the second execution signal to a second actuator. When the first output component fails, the control unit may control the second output component to output the first execution signal to the first actuator. When the second output component fails, the control unit may control the first output component to output the second execution signal to the second actuator.