Interrupter Control Circuit Using Abnormal Current Triggering
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Solution Overview
Problem
Existing interrupter systems in vehicle electric circuits take time to activate due to the need for crash determination processing, which can lead to delays in cutting off power during accidents.
Innovation Solution
An interrupter system that uses an abnormal current to directly activate the interrupter, bypassing the need for crash determination processing by utilizing a control system with a driven unit and a driving unit connected through an auxiliary and main electric circuit, where the abnormal current drives the startup current to initiate the interruption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If electronic control unit is used to detect crash and activate interrupter, then crash detection capability is improved, but activation time is increased
Solution Approach 1:
The patent introduces an intermediate electrical path that directly connects the main electric circuit to the auxiliary electric circuit, bypassing the electronic control unit. When abnormal current flows through the main circuit, it automatically triggers the auxiliary circuit to activate the interrupter, eliminating the time delay associated with electronic detection and control processing.
2Measurement precision
If electronic control unit processing is used, then crash determination accuracy is improved, but response speed is reduced
Solution Approach 1:
The system enables self-service operation where the abnormal current in the main electric circuit automatically activates the interrupter through the auxiliary electric circuit without requiring external electronic control. The electrical path itself performs the detection and activation function, achieving both accuracy and speed through direct electrical triggering.
3Loss of time
If direct abnormal current triggering is used, then activation time is reduced, but control precision may be compromised
Solution Approach 1:
The auxiliary electric circuit serves as an intermediary that receives the abnormal current signal from the main circuit and uses it to trigger the interrupter. This intermediary path maintains control precision by providing a dedicated electrical pathway that is specifically designed to respond to abnormal conditions while achieving rapid activation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution significantly reduces the time to activate the interrupter, ensuring quicker power cutoff during accidents and maintaining functionality even if the electronic control unit is compromised.
Implementation Method 1
when an abnormal current flows through a main electric circuit 930, the abnormal current flows through an intermediate electrical path 210... The driven unit 1 is driven by the driving unit 2... The driven unit 1 supplies the auxiliary electric circuit 920 with a startup current
Data Source
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AI summary
The problem to be overcome by the present disclosure is to shorten the time it takes to activate an interrupter. A control system (800) is designed to control an interrupter (910). The interrupter (910) is started by a startup current to interrupt a main electric circuit (930). The startup current flows through an auxiliary electric circuit (920) and has a current valve equal to or greater than a predetermined value. The control system (800) includes a driving unit (2) and a driven unit (1). The driving unit (2) includes an intermediate electrical path (210) to be connected to the main electric circuit (930). The driven unit (1) is to be connected to the auxiliary electric circuit (920). When an abnormal current having a current value equal to or greater than a prescribed value flows through the intermediate electrical path (210), the driving unit (2) uses, as a drive source for driving the driven unit (1), the abnormal current flowing through the intermediate electrical path (210). The driven unit (1) supplies the auxiliary electric circuit (920) with the startup current by being driven by the driving unit (2).