Charging Control Pilot Circuit for Multi-Standard EV Sockets
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Solution Overview
Problem
Existing electric vehicles are not forwardly compatible with multiple charging systems due to differences in communication protocols, interface physical forms, and connection circuits, failing to meet the demands of the current charging market.
Innovation Solution
A charging control pilot circuit is designed with multiple resistors and switches that allow electric vehicles to be compatible with various charging systems, including CHAdeMO, GB2015, CCS, and ChaoJi systems, by selecting the appropriate communication protocol and interface based on detected voltage values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electric vehicles use a single charging system design, then the device complexity is reduced, but the adaptability to different charging systems deteriorates
Solution Approach 1:
The charging control pilot circuit is designed to support multiple charging systems (CHAdeMO, GB2015, CCS, ChaoJi) through a single unified circuit structure. The circuit uses configurable resistor networks and switch elements that can be programmed to emulate different charging protocol requirements, allowing one circuit to perform multiple charging system compatibility functions without requiring separate dedicated circuits for each standard.
Solution Approach 2:
The invention employs variable resistance elements and switchable circuit configurations that can change their electrical parameters (resistance values, connection topologies) based on the detected charging system type. By dynamically adjusting circuit parameters through control signals, the same physical circuit can adapt its behavior to match different charging protocol requirements, resolving the contradiction between maintaining simple hardware and achieving multi-system compatibility.
2Adaptability or versatility
If electric vehicles support multiple charging systems, then the adaptability improves, but the device complexity increases
Solution Approach 1:
The charging control pilot circuit incorporates dynamic switching elements and programmable logic that allow the circuit configuration to change during operation. The circuit can detect which charging system is connected and dynamically reconfigure its internal resistor networks and switch states to match the appropriate protocol, enabling multi-system support without requiring multiple static circuit configurations.
Solution Approach 2:
The circuit is divided into modular functional segments including detectable resistor elements, switchable connection paths, and control logic modules. Each segment can be independently configured or programmed, allowing the complex multi-system support functionality to be broken down into manageable, reusable building blocks that reduce overall design complexity while maintaining comprehensive compatibility.
Data Source
AI summary
A charging control pilot circuit includes: a lead group including a first lead, a second lead and a third lead, in which one end of the first lead, one end of the second lead and one end of the third lead are respectively electrically connected to a connection line of an external charging device; a first loop including two or more resistors corresponding to the type of the external charging device, in which the first loop is disposed between the other end of the first lead and the other end of the third lead and electrically connected to the first lead and the third lead; and a second loop disposed between the other end of the second lead and the other end of the third lead and electrically connected to the second lead and the third lead.