Reliability Testing/Accelerated Life Testing

Accelerated Life Testing

Reliability Testing · Accelerated Life Test

Accelerated life testing applies conditions harsher than real use, by design, so that service life can be predicted in a short period.

We do not take test conditions from a standard — we analyse the product's operating environment and failure mechanisms and design the acceleration conditions for each product.

  • ALT
  • Life Prediction

Key services

Acceleration Design

Designing the acceleration conditions

We work in the order: operating environment analysis → acceleration condition design → accelerated testing → weak point extraction. Conditions of use are analysed at the design stage to draw out problems, and accelerated testing then confirms and closes the weak points.

Life Prediction

Life prediction fed back into design

From the test results we predict the limit life, and present the cause analysis for weak areas together with proposed design improvements.

Target products

  • Automotive electronics (sensors, controllers, modules)
  • Power supplies
  • LED modules
  • Motors and actuators
  • Appliances and IT devices
  • Healthcare IoT terminals
  • Industrial robots and controllers
  • System products such as screen golf

Four stages of test design

  1. 01Architecture & Failure Mode

    Structure and failure modes

    • Defining the product structure and expected failure modes
  2. 02Potential Failure Mechanism

    Potential failure mechanisms

    • Deriving the mechanisms that could cause failure
  3. 03Dominant Failure Mechanism

    Dominant failure mechanism

    • Selecting the dominant failure mechanism
    • Determining the acceleration factors (temperature, humidity, voltage, vibration and others)
  4. 04Acceleration Test

    Accelerated testing

    • Running the test under the acceleration conditions
    • Life prediction and weak point extraction

Research record

  • 2023Defence paper

    Accelerated life evaluation of K2 tank electronics — co-authored with Hyundai Rotem

  • 2024International EV symposium

    Accelerated life study of EV systems — co-authored with Hyundai Mobis

  • 2023Test method development

    Accelerated life test methods developed and executed for Hyundai Mobis Silver Box and others