Redundant Vehicle Controller Architecture for Failure Monitoring
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Solution Overview
Problem
In vehicle control systems with redundant architectures, defects in algorithms used by multiple electronic controllers can compromise safety and reliability, and monitoring these controllers for failures requires excessive computation.
Innovation Solution
A vehicle control apparatus and method that includes a receiver for sensing information, a first electronic controller for generating a vehicle control command, a monitor to check if the first controller is out of order, and a second electronic controller to generate an alternative command if the first one fails, using different algorithms to reduce computational load and enhance stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate monitoring algorithm is provided in each electronic controller, then failure monitoring is achieved, but excessive computation is required
Solution Approach 1:
The patent merges the monitoring function into the normal control operation by having each controller monitor the operational status of other controllers as part of their standard control cycle. Instead of implementing separate dedicated monitoring algorithms, the controllers exchange status information and compare operational states during regular control intervals. This integration reduces computational overhead while maintaining reliable failure detection capability.
2Stability of the object's composition
If a redundant controller structure is implemented, then stability is enhanced, but device complexity increases
Solution Approach 1:
The patent applies universality by designing each electronic controller to perform multiple functions: normal vehicle control, monitoring of other controllers, and backup control capability. Each controller is universally capable of executing control algorithms, detecting failures in other controllers, and taking over when needed. This multi-functionality reduces the need for separate dedicated components, thereby managing complexity while maintaining redundancy and stability.
Data Source
AI summary
The present disclosure relates to an apparatus and a method for controlling a vehicle, and more particularly to a vehicle control apparatus having a redundant architecture. A vehicle control apparatus according to one embodiment of the present disclosure includes: a receiver, configured to receive sensing information from a vehicle sensor; a first electronic controller, configured to generate a first vehicle control command based on the received sensing information; a monitor, configured to monitor whether the first electronic controller is out of order; and a second electronic controller, configured to generate a second vehicle control command based on the received sensing information if the first electronic controller is out of order.