Idling Stop System Assembly Line Testing Bypass
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Solution Overview
Problem
The idling stop and restarting system of engines cannot be effectively tested at the end of the assembly line due to its dependency on battery charging conditions, leading to decreased productivity and increased production costs.
Innovation Solution
A method that allows the idling stop and restarting system to be tested by setting a predetermined ignition number and operating time period, where if these conditions are met, the system operates regardless of the battery's charging value, ensuring quick testing and reduced production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the idling stop and restarting system waits for real battery charging value detection (at least 4 hours after starting the engine), then the system can operate reliably according to actual battery conditions, but productivity decreases and testing cannot be completed at the end of the assembly line
Solution Approach 1:
The system performs preliminary testing actions by temporarily assuming the battery is fully charged to test the idling stop function, without waiting for actual battery charging completion. This allows the testing to proceed in advance of the actual battery charge state
Solution Approach 2:
The control unit acts as an intermediary by introducing a temporary assumption state (pretending battery is fully charged) that mediates between the need for immediate testing and the actual battery charging status, enabling the test to proceed without waiting for real charging completion
2Measurement precision
If the system requires at least 4 hours of engine operation to detect battery charging condition, then accurate battery status can be determined, but work time increases and production costs increase
Solution Approach 1:
The control unit performs the battery status assumption and testing action preliminarily, before the actual 4-hour charging period elapses. The system temporarily assumes full charge status to enable immediate testing without waiting for the time-consuming charging verification
Solution Approach 2:
The system skips the time-consuming 4-hour waiting period by directly assuming battery full charge status. This rushes through the time-consuming measurement phase by replacing it with a temporary assumption, allowing immediate system testing
Data Source
AI summary
A vehicle that is equipped with an idling stop and restarting system and method thereof for testing a function of the idling stop and restarting system may include counting the ignition number of an engine including a first ignition, accumulating the operating time period after the first ignition, and setting a charging value of a battery as a predetermined value, if the ignition number is smaller than a predetermined ignition number and/or if operating time period is shorter than a predetermined operating time period, wherein the idling stop and restarting system is operated regardless of the real charging value of the battery.