A camera system detects lighting functions, symbols, and the position of the mirrors. Turn signals Lane Change Assist Ambient lighting

Different equipment features are automatically detected and specifically checked. Camera function Country-specific variants

EOLT Systems

Exterior Mirror

Today, modern exterior vehicle mirrors are much more than just mirrors.

MCD Elektronik has developed an automated testing solution for more than 30 different mirror configurations. Immediately prior to shipment, the respective variants are reliably identified, tested, and verified against defined quality criteria in a very short amount of time.

Challenges and Concept

Modern vehicle side mirrors combine numerous functions. As a result, the customer’s mirror model offers over 30 different configuration options, all of which must be thoroughly tested before delivery.

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Blinker, Kamera, Heizung und Assistenzsysteme.

EOLT Systems

Außenspiegel

Exterior Mirror

A Flexible End-of-Line Test Stand

To address this, MCD developed a flexible end-of-line test bench that tests all variants in less than 30 seconds. The system combines optical, mechanical, and electrical testing methods into a comprehensive testing concept.

Product Variants

Over 30

Cycle time per component

Less than 30 seconds

Quality Control Before Shipment

100 %

Scope of Testing and Functionality

The test bench checks all of the exterior mirror's functions:

Component Mounting in the EOL Test Bench

Detailed view of the test setup

Mechanical Testing Technology

Camera System in the EOL Test Bench

Detailed view of the camera system

Optical Inspection Technology

Interior view of the EOL test stand

A Look Inside the Testing Station

Automated Test Record

Camera systems monitor lighting functions and mirror positions, while actuators, folding mechanisms, and electrical functions are tested automatically.

Adjustment and folding functions
Mirror heating
EC anti-glare glass

A camera system detects lighting functions, symbols, and the position of the mirrors.

Turn signals
Lane Change Assist
Ambient lighting

Different equipment features are automatically detected and specifically checked.

Camera function
Country-specific variants

Even what doesn't exist counts.

The negative check ensures that features that are not installed cannot be activated. It also checks for what is missing.

Test Methods Used and Results

To ensure product quality, the EOL test bench combines optical, mechanical, and electrical testing methods.

Visual Inspections

Camera-Based Detection of Lighting Functions

Analysis of Mirror Positions

Inspection of the Mirror Glass

Mechanical and Electrical Tests

Motion Test of the Drives

Angle Measurement of the Folding Mechanism

Current consumption of the motors

Functional and Quality Assessment

Evaluation of Complex Trim Levels

Reliable Detection of Defect Patterns

Reproducible results

Smart Testing Concept

The intelligent test logic enables reliable testing with short cycle times. This ensures that all relevant functions are thoroughly validated while maintaining high process stability.

Features

A particular challenge is the wide variety of exterior mirror configurations. Different equipment features are automatically detected and specifically inspected.

Negative screening

A negative check ensures that functions that do not exist cannot be enabled.

Traceability via MES Integration

Inspection data and results are transmitted directly to the customer's system via the MES integration.

Flexible use for mass production and spare parts production

The integration with the customer's system and full traceability result in a future-proof solution that reliably handles both production peaks and future requirements for spare parts manufacturing. Easy conversion between left and right mirrors.

FREQUENTLY ASKED QUESTIONS

FAQS

An EOL (End-of-Line) test station inspects fully assembled exterior mirrors directly at the end of the production line. All functions are tested and documented to ensure 100 percent quality assurance.

The testing system covers a wide range of mechanical, electrical, and optical tests. These include mirror adjustment, folding test, mirror heating, turn signals, ambient lighting, EC dimming function, mirror shape, mirror labeling, and the functionality of integrated cameras and driver assistance systems. In addition, the system verifies that features that are not present cannot be activated.

The left and right exterior mirrors of a vehicle model are tested. The mirrors feature numerous equipment options and vary depending on the vehicle variant and market requirements. For each side of the mirror, there can be a total of more than 30 different configurations. These include various mirror lenses, lighting functions, camera systems, driver assistance features, and country-specific designs and labeling.

Rising production volumes and the wide variety of exterior mirror models called for an additional testing solution. The test stand expands existing capacity and enables reliable quality control prior to shipment to the customer.

The test bench was deliberately designed to be flexible. In addition to current series production, the system can be adapted with minimal modifications to accommodate future product changes or spare parts manufacturing, thereby offering a high degree of investment security.