Vehicle Platoon Control Switching for Lower Manufacturing Load
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Solution Overview
Problem
In vehicle manufacturing systems where multiple vehicles travel in a platoon, the communication and processing loads increase due to individual control instruction values being transmitted to each vehicle, leading to inefficiencies.
Innovation Solution
A vehicle manufacturing system that computes and transmits either a common control instruction value or individual control instruction values based on inter-vehicle distance detection, using a determination unit to switch between group and individual control modes, and employs address granting units to manage communication addresses dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If individual control instruction values are transmitted to each vehicle, then control precision is improved, but communication load increases
Solution Approach 1:
The patent segments the control instruction transmission into two types: common control instruction values transmitted to multiple vehicles simultaneously, and individual control instruction values transmitted to specific vehicles. This segmentation allows the system to reduce communication load by using common instructions for platoon-wide control while maintaining control precision through selective individual instructions when needed.
Solution Approach 2:
The patent dynamically switches between transmitting common control instruction values and individual control instruction values based on platoon stability conditions. When the platoon is stable, common instructions are used to reduce communication load. When disturbances are detected, individual instructions are transmitted to maintain control precision, creating a dynamic adaptation to system conditions.
2Measurement precision
If individual control instruction values are transmitted to each vehicle, then control precision is improved, but processing load increases
Solution Approach 1:
The control system is segmented into common control processing for platoon-wide operations and individual control processing for specific vehicles. This segmentation reduces overall processing load by handling most control operations through common instructions while reserving individual processing only for necessary cases.
Solution Approach 2:
The system dynamically adjusts processing requirements by switching between common and individual control modes based on platoon stability. This dynamic approach reduces processing load during stable operations while maintaining the capability for precise individual control when disturbances occur.
3Quantity of substance
If common control instruction values are transmitted to multiple vehicles, then communication load is reduced, but control adaptability decreases
Solution Approach 1:
The patent segments control adaptability into common control for general platoon operations and individual control for specific vehicle needs. This segmentation maintains control adaptability by ensuring individual instructions are available when required, while using common instructions to reduce communication load during routine operations.
Solution Approach 2:
The system dynamically adapts between common and individual control modes based on detected platoon disturbances. This dynamic switching ensures control adaptability is maintained by transitioning to individual control when adaptability is needed, while using common control to reduce communication load during stable conditions.
4Measurement precision
If individual addresses are assigned to each vehicle, then communication precision is improved, but device complexity increases
Solution Approach 1:
The address management system is segmented into common address usage for group communication and individual address assignment for specific vehicle communication. This segmentation reduces device complexity by using simple common addresses for most communications while maintaining communication precision through individual addresses only when necessary.
Solution Approach 2:
The system dynamically switches between using common addresses and individual addresses based on the type of control instruction being transmitted. This dynamic approach reduces device complexity by minimizing individual address management while maintaining communication precision when individual vehicle targeting is required.
Data Source
AI summary
A vehicle manufacturing system according to this embodiment is a vehicle manufacturing system for performing control in such a way that a plurality of vehicles forming a platoon travel during a manufacturing process or a transporting process, the vehicle manufacturing system including: a computing unit configured to compute a control instruction value; a sensor provided to detect an inter-vehicle distance; determination unit for determining, based on the inter-vehicle distance, whether or not the platoon is disturbed; a transmitter configured to transmit, in a case where the platoon is not disturbed, a common control instruction value to the plurality of vehicles; a communication apparatus that is provided in the vehicle and receives the control instruction value; and speed control unit for controlling the speed of the vehicle in accordance with the control instruction value.