Drive Train Control via Dual Communication Channels
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Solution Overview
Problem
Drive train systems, particularly in automotive applications, face operational failures due to communication channel failures, which can render the system inoperable, as existing control methods lack redundancy and reliability in both speed and error protection.
Innovation Solution
Implementing a dual communication channel system where a primary communication channel prioritizes speed with lower latency and a secondary channel prioritizes reliability with error protection, allowing for seamless switching in case of failures to maintain limited operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single communication channel is used for controller-submodule communication, then device complexity is reduced, but reliability deteriorates due to communication failures rendering the drive train inoperable
Solution Approach 1:
The communication system is segmented into two distinct channels: a first communication channel and a second communication channel. Each channel operates independently with different error profiles, allowing the system to divide communication tasks and switch between channels based on reliability needs, thereby improving overall communication reliability without excessive complexity
Solution Approach 2:
The system changes the parameter of communication channel selection dynamically. When communication via the first channel fails, the error profile indication triggers a parameter change to switch to the second communication channel, maintaining system operation despite communication failures
2Reliability
If communication protocols with error protection are used, then reliability is improved, but speed deteriorates due to increased latency
Solution Approach 1:
The communication system dynamically adjusts which channel is active based on real-time error profile indications. The first channel can be optimized for speed when conditions permit, while the second channel provides error-protected communication when reliability is prioritized, allowing the system to adapt communication characteristics dynamically rather than being static
Solution Approach 2:
The system periodically monitors communication success and switches between channels based on detected failures. This periodic checking and switching mechanism ensures that the system maintains reliable communication by alternating between channels with different error profiles based on current communication conditions
Data Source
AI summary
Various techniques relating to drive train control are disclosed. In an embodiment, in a first mode of operation communication between a controller and a submodule of the drive train takes place via a first communication channel and optionally additionally via a second communication channel. In a second mode of operation, upon failure of the first communication channel, communication with the submodule of the drive train takes place via the second communication channel.