Alternator Tester With Variable Resistive Load Segmentation
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Solution Overview
Problem
Current alternator and starter motor testers lack effective methods to verify the functionality of test leads and ensure proper coupling, leading to false defect identification and inadequate fault detection due to low current test loads.
Innovation Solution
A diagnostic tool with a processor, memory, and software that includes test adapters and power leads with identification elements, capable of processing test information, controlling the alternator or starter motor, and applying variable resistive loads to accurately detect faults and verify proper connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a low current test load is used in conventional alternator and starter motor testers, then the device can operate within motor power limitations and reduce heat generation, but the testing accuracy deteriorates due to small output voltage potential variations that cannot detect faults
Solution Approach 1:
The test load is segmented into multiple independent resistive load elements that can be selectively connected in parallel. This allows the system to start with lower power consumption and progressively increase the total load by activating additional segments, enabling accurate fault detection without overwhelming the motor's power capacity.
Solution Approach 2:
The test load is made dynamic through variable resistive loads that can be adjusted during operation. The system dynamically increases the test load current by connecting additional resistive elements in parallel as the alternator or motor demonstrates capability to handle higher currents, thereby achieving high accuracy fault detection while adapting to the device under test's power capacity.
2Reliability
If multiple test leads are used without identification verification, then the testing coverage is comprehensive, but false defect identification occurs due to improper coupling of test leads to connections
Solution Approach 1:
The system performs preliminary verification of test lead functionality and proper coupling before conducting the actual alternator or motor test. Identification elements on test leads are read and validated against the expected connection scheme for the specific device being tested, ensuring correct connections are made before applying test loads that could cause false defect readings.
Solution Approach 2:
The system incorporates feedback mechanisms that continuously monitor test lead connections and provide real-time verification. The processor reads identification elements on test leads, compares them with the required connection configuration, and provides feedback to confirm proper coupling or alert the operator to connection errors, thereby preventing false defect identification.
3Reliability
If test lead functionality is not verified, then the testing process is simple and quick, but defective test leads cause alternators and motors to be falsely identified as faulty
Solution Approach 1:
The system performs preliminary verification of test lead functionality automatically before the actual testing begins. Identification elements on each test lead are read by the processor, and the system validates that the test leads are functioning properly and correctly matched to their intended connections, preventing false warranty claims while minimizing operator intervention time.
Solution Approach 2:
The testing system performs self-verification of test lead functionality without requiring external calibration or manual checking. The identification elements on test leads enable the processor to automatically detect and verify lead integrity and proper coupling, making the verification process autonomous and eliminating the need for separate manual testing procedures.
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
The diagnostic tool effectively verifies the functionality of test leads and ensures accurate fault detection by applying variable resistive loads, enhancing the accuracy of alternator and starter motor testing and preventing false defect identification.
Implementation Method 1
conventional alternator and starter tester uses a low current test load due to limitations of motor power to spin the alternators and/or starter motors and heat generated by the test load
Implementation Method 2
at least one test adapter and power lead comprising an identification element coupled to the alternator component
Data Source
AI summary
An alternator and starter tester system capable of generating a warranty claim code. The warranty claim code can contain information regarding a diagnostic test and the tested components. The alternator and starter tester system can also encode and transmit the warranty claim code to a supplier or a manufacturer to verify warranty credit.