Motor Vehicle Assembly Testing via Self-Service Interface Signals
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Solution Overview
Problem
There is a need for an efficient method to test motor vehicles comprising a rolling chassis and a vehicle body to ensure correct attachment and addressability of connections and components, as existing methods lack comprehensive validation of interface connections and component functionality.
Innovation Solution
A method involving the generation and output of check demand signals to verify correct attachment and addressability of interfaces and components, including self-tests and cooperation tests, with results indicating correct or incorrect connections and component functionality, and generating disablement, restriction, or solution signals as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If comprehensive testing of interface connections and component addressability is implemented, then reliability of motor vehicle assembly is improved, but device complexity and testing time increase
Solution Approach 1:
The testing system utilizes the vehicle body's own control unit and interface structures to perform self-testing. The control unit automatically generates test signals, transmits them through the interfaces, and evaluates the results without requiring external testing equipment, thereby improving reliability while avoiding increased device complexity
Solution Approach 2:
The control unit serves multiple functions: it controls vehicle components during normal operation and simultaneously performs testing functions by generating test signals and evaluating connection correctness. This multi-functionality eliminates the need for separate dedicated testing equipment, maintaining system simplicity while achieving comprehensive testing
2Reliability
If comprehensive testing of interface connections and component addressability is implemented, then reliability of motor vehicle assembly is improved, but testing time increases
Solution Approach 1:
The testing procedure is automatically initiated and executed as part of the vehicle assembly process itself, rather than as a separate subsequent step. The control unit performs tests immediately after component assembly, utilizing already-present test signals and evaluation routines, thereby ensuring reliability without adding significant testing time
Solution Approach 2:
The testing process operates continuously during the assembly procedure without interrupting the overall manufacturing flow. Test signals are generated and evaluated in real-time as components are connected, allowing comprehensive testing to occur concurrently with assembly operations rather than sequentially
Data Source
AI summary
The invention relates to a method for testing a motor vehicle, said motor vehicle comprising an assembly having a rolling chassis and a body provided on the rolling chassis, the rolling chassis comprising multiple first interfaces and the body comprising multiple second interfaces allocated to the first interfaces, so that each pair of first and second interfaces can form a respective connection between the rolling chassis and the body, when the body is assembled on the rolling chassis. The method comprises, for example, a check as to whether all connections are correctly attached. The method comprises, for example, a check as to whether all components of the motor vehicle are responsive. The method also comprises, for example, a check as to whether the body may be used with the rolling chassis. The invention further relates to a device, a computer program, a machine-readable storage medium, a rolling chassis, a body and a motor vehicle.