Modular Electric Vehicle System Module Compatibility Check
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Solution Overview
Problem
Electric vehicles face risks of damage and user safety issues due to the high current and voltage requirements for their electrical systems, particularly when incompatible batteries or unsuitable chargers are used, and improper handling can lead to injuries.
Innovation Solution
A modular vehicle system with a communication protocol that checks the compatibility of electrical modules with the vehicle's power network before connection, ensuring safe and trouble-free operation by using identification signals and compatibility parameters to activate the connection only if the module is compatible.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If users can easily connect and replace electrical modules in electric vehicles, then ease of operation is improved, but the risk of damage and safety hazards increases due to incompatible modules
Solution Approach 1:
The system performs a compatibility check via communication between the vehicle control unit and module control unit before the electrical connection is established. The connection element is designed so that communication lines are connected before power lines, allowing the vehicle to verify module compatibility before energizing the connection.
Solution Approach 2:
A communication protocol acts as an intermediary between the vehicle's electrical system and the module, mediating the connection process by exchanging identification signals and compatibility parameters to verify suitability before allowing power connection.
2Reliability
If communication and compatibility checking systems are added to verify module compatibility, then system reliability is improved, but device complexity increases
Solution Approach 1:
The connection element serves multiple functions: it provides both power connection and communication capabilities through integrated contact elements. The control units utilize existing communication infrastructure to perform compatibility checks, avoiding the need for separate dedicated verification hardware.
Solution Approach 2:
The module control unit automatically transmits its identification signal when connected, and the vehicle control unit automatically performs the compatibility check and controls the switching element, eliminating the need for manual verification by the user.
3Object-affected harmful factors
If the vehicle control unit performs compatibility checks before connecting electrical arrangements, then object-affected harmful factors are reduced, but loss of time occurs during the verification process
Solution Approach 1:
The compatibility check is performed rapidly through direct communication protocols between control units, and the switching element can be activated immediately upon verification, minimizing the time delay between connection and operational status.
Data Source
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AI summary
The invention relates to a modular vehicle system comprising an electric vehicle, in particular a light electric vehicle, and at least one module (20, 20') which can be connected to the electric vehicle. The electric vehicle has at least an on-board power supply system (4) for supplying power to an electric drive unit (2), one or more interfaces (12), which are connected to the on-board power supply system (4), for connecting the module (20, 20') and a controller device (8), wherein the controller device (8) is designed to communicate with the at least one module (20, 20'). The at least one module (20, 20') has a connection element (21) which can be connected to and disconnected from the interface (12), an electrical arrangement for establishing a connection to the onboard power supply system (4), and a module controller (25). In order to increase the reliability of the connection to the module (20, 20') and to avoid damage to the vehicle and the module (20, 20'), the module controller (25) is designed to transmit an identification signal to the controller device (8) when the connection element (21) is connected to the interface (12). The controller device (8) is designed to receive the identification signal, to compare said identification signal with at least one compatibility parameter and, if the identification signal and the compatibility parameter correspond, to transmit an activation signal to a switching unit (24) in order to connect the electrical arrangement to the on-board power supply system (4).