Multi-Core Drive Axle Control for Low-Latency Axle Coordination
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Solution Overview
Problem
Existing drive axle systems with electric motors face latency issues, throughput capacity problems, and increased software complexity due to the use of multiple control modules and cores, leading to potential data exchange corruption and inefficient coordination between axle assemblies.
Innovation Solution
A drive axle system with a control module featuring multiple cores, where each core independently controls a separate axle assembly, allowing direct communication between the core and associated components, reducing latency and coordinating operations through a supervisory core for overall system control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple control modules are used to control separate axle assemblies, then each axle can be controlled independently, but latency issues and data exchange corruption occur
Solution Approach 1:
The patent combines multiple control functions into a single control module with multiple cores. Each core independently controls a separate axle assembly, eliminating the need for inter-module data exchange and preventing data corruption while maintaining independent axle control capability.
Solution Approach 2:
The control module is segmented into multiple independent cores within the same module. Each core is dedicated to controlling a specific axle assembly, providing independent control while avoiding the communication overhead and reliability issues of separate control modules.
2Adaptability or versatility
If multiple control modules are used to control separate axle assemblies, then each axle can be controlled independently, but software complexity increases
Solution Approach 1:
The patent merges multiple control functions into a single control module with multiple cores, reducing software complexity by eliminating the need for multiple independent control software instances and their associated communication protocols, while maintaining independent axle control capability.
3Adaptability or versatility
If signals are transmitted through multiple control modules, then coordination between axle assemblies can be achieved, but latency increases
Solution Approach 1:
The patent segments the control function into multiple cores within a single control module, allowing each core to independently control an axle assembly while enabling fast coordination through direct memory access and shared memory, eliminating the latency of inter-module signal transmission.
4Device complexity
If a single core controls multiple axle assemblies, then device complexity is reduced, but throughput capacity decreases
Solution Approach 1:
The patent segments the control module into multiple independent cores, each capable of independently controlling an axle assembly. This segmentation increases throughput capacity by allowing parallel processing of control signals for multiple axles while maintaining a unified control module structure.
Solution Approach 2:
Each core within the control module is designed to be universal and can control any axle assembly. This multi-functionality allows the system to scale and adapt to different configurations while maintaining high throughput capacity through parallel core operation.
Data Source
AI summary
A drive axle system and a method of control. The drive axle system comprises a first axle assembly, a second axle assembly, and a control module. The control module comprises a first core and a second core. The first core controls operation of the first axle assembly. The second core controls operation of the second axle assembly.