Server-Based Vibration Control for Vehicle Damping Optimization
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Solution Overview
Problem
Conventional techniques for attenuating vehicle vibration require each vehicle to detect and adjust its damping force characteristic individually, leading to increased calculation load, especially when road surface shapes change, and do not efficiently share vibration control data between vehicles traveling on the same route.
Innovation Solution
A server apparatus that communicates with multiple vehicles to acquire and accumulate traveling data, including acceleration magnitudes and target accelerations, correlated with section identification information, allowing it to set and transmit optimal target accelerations for each vehicle, thereby reducing the need for individual vehicle calculations and enhancing vibration control performance across multiple vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each vehicle individually detects and adjusts its damping force characteristic, then the vibration control can be adapted to real-time road conditions, but the calculation load on each vehicle increases excessively
Solution Approach 1:
A server is introduced as an intermediary between vehicles and the vibration control system. The server accumulates traveling data from multiple vehicles, analyzes road surface shapes, and provides guidance information to vehicles. This mediator handles the complex calculations centrally, reducing the computational burden on individual vehicles while maintaining adaptive vibration control performance
Solution Approach 2:
The server performs preliminary analysis of traveling data to predict road surface shapes before vehicles encounter them. By accumulating data from multiple vehicles and pre-processing this information, the system prepares guidance information in advance, allowing vehicles to receive ready-to-use vibration control parameters without performing heavy real-time calculations
2Adaptability or versatility
If damping force characteristic is adjusted for each vehicle individually, then the control can be optimized for each vehicle's specific conditions, but the system cannot efficiently share vibration control data between vehicles traveling on the same route
Solution Approach 1:
The system merges traveling data from multiple vehicles traveling on the same or equivalent routes into a centralized database on the server. By combining data from multiple sources, the server creates a comprehensive view of road surface conditions that benefits all vehicles, enabling efficient information sharing while maintaining individual vehicle optimization capabilities
Solution Approach 2:
The server provides a universal platform that serves multiple vehicles simultaneously. It accumulates and processes traveling data from various vehicles, analyzes road surface shapes for different routes, and provides guidance information to multiple vehicles. This multi-functional system eliminates redundant data collection and analysis across the vehicle fleet
3Measurement precision
If vibration detection and damping adjustment is performed every time road surface shape changes, then the control accuracy is maintained, but the calculation load on individual vehicles increases
Solution Approach 1:
The server performs preliminary analysis of traveling data to identify changes in road surface shape before vehicles encounter them. By detecting and analyzing road surface changes in advance using accumulated data from multiple vehicles, the server prepares appropriate guidance information, allowing vehicles to maintain control accuracy without performing continuous heavy calculations
Solution Approach 2:
The system implements a feedback mechanism where vehicles report their traveling data and actual road conditions to the server. The server uses this feedback to refine its road surface shape analysis and improve the accuracy of guidance information provided to vehicles, maintaining control precision while distributing the computational workload
Data Source
AI summary
A server apparatus capable of communicating with a plurality of vehicles each of which carries a vibration control apparatus for attenuating vibration by adjusting a parameter that affects a predetermined acceleration so that the predetermined acceleration approaches a target acceleration is disclosed. The server apparatus acquires traveling data including a magnitude of the predetermined acceleration generated in each of the vehicles and the target acceleration set for the vehicle every time when each of the vehicles travels on each of sections of a previously divided road, and accumulates the acquired traveling data while being correlated with section identification information. Then, the server apparatus sets the target acceleration which is adequate for each of the vehicles to travel on a scheduled traveling section on the basis of the accumulated traveling data, and transmits the set target acceleration to the vehicle scheduled to travel on the scheduled traveling section.