Auxiliary Drive Inverter Control With Auto Vehicle Configuration
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Solution Overview
Problem
Existing electric vehicle auxiliary drive systems lack immediate usability and require complex configuration and adaptation for each vehicle and application, leading to increased costs and time.
Innovation Solution
A device with bidirectional inverter and control arrangement providing plug-and-play functionality, allowing automatic recognition and configuration of electric auxiliary drives for electric vehicles, using standardized communication and interfaces to adapt to various vehicles and applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If complex configuration and adaptation are performed for each vehicle and application, then the auxiliary drive system can be precisely tailored to specific requirements, but the configuration time and costs increase
Solution Approach 1:
The control arrangement stores multiple reference datasets with control parameters for different vehicle types and auxiliary drive applications in advance. Upon connection, the system automatically selects and applies the appropriate pre-configured dataset, eliminating the need for time-consuming manual configuration and adaptation for each specific vehicle-application combination.
Solution Approach 2:
The system performs automatic self-configuration by detecting the connected vehicle and auxiliary drive components, then autonomously selects the appropriate reference dataset and configures control parameters without requiring external intervention. This self-service capability reduces both configuration time and the need for specialized setup personnel.
2Adaptability or versatility
If complex configuration and adaptation are performed for each vehicle and application, then the auxiliary drive system can be precisely tailored to specific requirements, but the configuration costs increase
Solution Approach 1:
Multiple vehicle-specific and application-specific control parameter sets are pre-configured and stored in the control arrangement during manufacturing. This preliminary action allows the system to automatically adapt to different vehicles and applications without requiring expensive on-site engineering services, thereby reducing configuration costs while maintaining high adaptability.
Solution Approach 2:
The control arrangement is designed with universal functionality to support multiple vehicle types and auxiliary drive applications through a single device. By storing diverse reference datasets and automatically selecting the appropriate configuration, the system eliminates the need for multiple specialized devices or expensive customization services, reducing overall configuration costs.
3Ease of operation
If standardized communication and interfaces are used, then immediate usability and flexibility are improved, but the ability to handle specific vehicle configurations may be reduced
Solution Approach 1:
The control arrangement employs standardized communication interfaces for universal compatibility across different vehicles and auxiliary drives, enabling immediate usability upon connection. Simultaneously, it maintains adaptability to specific configurations by storing multiple reference datasets that cover various vehicle types and application scenarios, allowing the system to handle specific configurations effectively through automatic dataset selection.
Solution Approach 2:
The system pre-configures multiple reference datasets covering specific vehicle and application variations. When connected through standardized interfaces, the control arrangement automatically detects the specific configuration and selects the appropriate pre-prepared dataset, thereby maintaining both immediate usability through standardization and adaptability to specific configurations through preliminary preparation of diverse reference scenarios.
Data Source
AI summary
A device for operating an electric auxiliary drive for an electric vehicle has a bidirectional inverter having a battery interface for electrically connecting to a vehicle battery and an auxiliary drive interface for electrically connecting to the auxiliary drive; a control arrangement having a first communications interface for connecting to the electric vehicle and a second communications interface for connecting to the auxiliary drive. The control arrangement inputs a configuration signal representing a present configuration of the electric vehicle and/or of the auxiliary drive via one of the communications interfaces. The control arrangement is formed to use the configuration signal to determine control parameters from a plurality of reference datasets with control parameters for different electric vehicles and different auxiliary drives, which control parameters are associated with respective configurations, and to control the inverter using the control parameters.