Travel Control Apparatus Communication Capacity Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing travel control systems face challenges in managing communication capacity during high driving assistance levels, leading to increased communication costs when the communication capacity reaches its limit, as they do not adapt the mode of travel control based on available capacity.
Innovation Solution
A travel control apparatus that includes an ECU capable of switching between two modes of operation (first mode with higher driving assistance and second mode with lower assistance) based on the available communication capacity, allowing it to adjust the level of detail in map information and reduce costs by acquiring only necessary additional information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If travel control is continued in high driving assistance mode regardless of communication capacity, then detailed and new map information can be acquired, but communication cost increases when limit value is reached
Solution Approach 1:
The system dynamically switches between first mode (high driving assistance) and second mode (low driving assistance) based on real-time comparison between required capacity and remaining capacity. This dynamic adaptation allows the system to optimize information acquisition while controlling communication costs, resolving the contradiction between maintaining detailed map information and managing communication expenditure.
Solution Approach 2:
The system changes the parameter of driving assistance level by switching modes. In first mode, the system operates with higher driving assistance requiring more detailed map information, while in second mode, it operates with lower driving assistance using less detailed information, thereby adjusting information requirements to match available communication capacity.
2Manufacturing precision
If additional information is acquired to maintain high driving assistance level, then travel control precision is improved, but communication capacity is consumed faster
Solution Approach 1:
The system applies partial action by acquiring only the necessary amount of additional information required for the current driving assistance level. When remaining capacity is insufficient, the system switches to second mode where less information is acquired, thereby consuming communication capacity at a reduced rate while still providing functional travel control.
Solution Approach 2:
The system dynamically adjusts information acquisition intensity based on remaining communication capacity. When capacity is sufficient, the system operates in first mode with high information acquisition for precise travel control. When capacity becomes limited, the system transitions to second mode with reduced information acquisition, optimizing the balance between precision and resource consumption.
3Loss of energy
If communication capacity limit value is set low to control costs, then communication expense is reduced, but ability to acquire necessary map information is limited
Solution Approach 1:
The system changes the operational parameter from high driving assistance (first mode) to low driving assistance (second mode) when communication capacity becomes limited. This parameter change allows the system to continue providing functional travel control with reduced information requirements, thereby maintaining cost control while avoiding complete information deprivation.
Solution Approach 2:
The system dynamically adapts its information acquisition strategy based on remaining communication capacity. Rather than maintaining a fixed high information requirement that would quickly exhaust limited capacity, the system flexibly adjusts between modes, ensuring that map information acquisition remains sustainable within the set communication expense constraints.
Data Source
AI summary
A travel control apparatus includes a travel control unit, an information addition unit configured to add the acquired additional information to map information, a required capacity acquisition unit configured to acquire a required capacity, and a remaining capacity acquisition unit configured to acquire a remaining capacity of the communication capacity. The travel control unit is configured to be able to perform the travel control in a plurality of modes including at least a first mode and a second mode and is configured to perform the travel control in any one of the modes based on the required capacity and the remaining capacity. The first mode is a mode of travel control performed based on the map information and is a mode of travel control of the vehicle in which the required capacity of the additional information is larger than that in the second mode.