EMEC's Technical Lexicon

AC/EC and BLDC motor units convert direct current into three-phase current. These units dispense with carbon brushes, which are used by similar direct current machines. They are mainly used for PCs and servomotors.

A brake test bench measures the braking force, its changes and fluctuations, the rolling resistance, and details of a vehicle's tendency to lock to evaluate the performance and safety of braking systems. By simulating different braking processes, including wheel locking, it helps to identify potential problems in the braking system.

CAD software (Computer-Aided Design) is used in the development of test benches to precisely design and simulate complex test facilities. It enables detailed planning and optimization of the test bench design to maximize efficiency and functionality.

CE approval is a marking that indicates that a product meets the safety and health standards of the European Union and is therefore approved for sale in the European Economic Area.

A drive system test bench makes it possible to test the performance and reliability of drive components under controlled conditions. It simulates real operating conditions to optimize efficiency, safety, and durability.

Dynamic test rigs are characterized by their ability to actively simulate and adjust changes in speed, load, and other operating parameters to test the behavior of products under variable conditions. They enable the precise analysis of performance characteristics and responses to changing loads, which is essential for assessing the dynamic properties of components.

An Electrically Power Assisted Cycle (EPAC) is a bicycle that is equipped with an electric drive system to assist the rider in pedaling. This assistance system can increase the speed of the bike and support the rider on climbs or longer rides.

Electrical test parameters include all electronic test results of products. What is tested includes aspects such as the current, voltage, or electrical resistance of a device.

Electric drive systems are mechanical systems that convert electrical energy into kinetic energy to drive machines and vehicles. They typically consist of an electric motor and associated control and regulation components that ensure efficient and precise power output.

EMC measurements determine electromagnetic interference that can be caused by devices and systems. Various electrical devices generate interference emissions that can affect surrounding systems. The test determines the interference potential of these devices to guarantee smooth operation.

End-of-line (EoL) test benches are test systems integrated into the production line that carry out final quality tests on finished products. They check full functionality and conformity with quality requirements before the products are released for sale.

Endurance tests are long-term tests of products or systems under real or simulated operating conditions to evaluate their reliability and service life. They help to identify wear patterns, failure rates, and possible weak points over a longer period.

An engine test bench is a specific type of dynamometer designed to test and analyze the performance of engines. This includes measuring torque, power, fuel consumption and other relevant parameters to evaluate the efficiency and reliability of engines in a controlled environment.

A fatigue test bench simulates long-lasting loads on materials or components to test their durability and resistance to fatigue. These tests help to predict service life and ensure product quality by detecting failure risks at an early stage.

A fuel cell is a technical device that uses an oxidizing agent to convert the chemical energy of a fuel into electrical energy through an electrochemical reaction. No combustion takes place in the process.

Functional validation is the process of verifying that a system or product functions as intended. This includes testing and analysis to ensure compliance with the specified requirements and performance criteria in different operating environments.

The galvanic cell converts chemical energy into electrical energy. The cell always consists of two half-cells: an electrolyte solution and the electrode it contains. Oxidation and reduction are triggered in the electrodes, releasing electrons.

The gearbox test bench is used to test gearboxes under various conditions such as different torques and speeds to evaluate their performance, load capacity, and efficiency. This enables a precise analysis of the functionality and reliability of the gearbox in various operating scenarios.

Hardware-in-the-Loop (HiL) is a test method in which a real embedded system is connected via its inputs and outputs to a special simulator (HiL simulator) to perform tests in a controlled environment and support the development and early commissioning.

Hydraulic and pneumatic test parameters include all test results for products that process liquid or gaseous substances. What is tested includes aspects such as pressure, temperature or fill level of a device.

Interconnectivity in test benches describes how well different parts of the test setup can communicate with each other and exchange data. Good interconnectivity ensures that tests can be carried out smoothly as all components work together effectively and are integrated.

About test benches, junction temperature refers to the temperature at the junction within electronic components that are tested on the test bench. Precise monitoring and control of the junction temperature is important to ensure the reliability and accuracy of the test results.

The key characteristic curve describes the graphical representation of the relationship between various input and output parameters of a system or component. It is often used in test bench tests to analyze and document the behavior under different operating conditions.

Leakage tests are used to determine how tight a product is. Valves and pipes in particular are subjected to these tests, e.g. to prevent the loss of gases or liquids.

Limit value analysis systematically examines the performance of a product or system at its specification limits to determine the extreme operating conditions under which it will still function reliably. This method is used to identify the robust tolerances and potential weak points without direct reference to peak loads.

A load test checks the stability and performance of a system under extreme or peak load conditions. The aim is to identify the limits of the system and uncover possible weak points.

Mechanical test parameters include all structural and technical test results of products. What is tested includes aspects such as the force, displacement, angle or torque of a device.

Standards testing is a standardized testing process in which products or systems are tested according to predefined standards and specifications to ensure that they comply with established industry standards. These tests are used to evaluate safety, quality, and performance and are often required to ensure a product's compliance with legal regulations and industry standards.

Optical inspection methods are methods in which light and optical systems are used to inspect products or materials for their visual properties, surface characteristics, or structural features. These methods enable high-precision inspections, quality controls, and defect detection in various industrial applications.

A pedalec is an EPAC that offers the rider electric assistance up to a maximum speed of 25 km/h. The electric drive power is limited to a nominal continuous output of 250 watts, with a maximum peak output of 600 watts.

A dynamometer is a special device used to measure and analyze the mechanical performance of engines, vehicles or other mechanical systems. On the test bench, parameters such as torque, speed and power are measured in isolation or in combination in order to evaluate the performance and efficiency of the respective system.

Four-quadrant operation refers to the ability of a system to operate in four different modes by generating positive and negative values for both torque and speed. This mode of operation allows electrical machines, for example, to rotate in different directions and act as a motor or generator.

Quality control refers to the process of ensuring quality and compliance with product or service standards. The aim is to identify and correct errors or defects before the product reaches the customer or the service is provided.

Rapid prototyping refers to creating physical models of test bench components or systems quickly to perform rapid testing and validation. This enables efficient development and adaptation of test setups before they go into regular operation.

The rated continuous power refers to the maximum electrical power that an appliance or machine can safely deliver continuously over a long period without suffering damage. This parameter is important for assessing the long-term performance and reliability of electrical appliances or machines.

The R200 test is a standardized method for measuring the range of eBikes. Developed by the Zweirad-Industrie-Verband (ZIV) in cooperation with Bosch eBike Systems and other industry leaders, this test enables objective comparisons to be made under standardized and reproducible conditions.

Safety testing is the inspection of products or systems to ensure their compliance with safety standards and to identify potential hazards to ensure a safe condition.

Series testing is a test method in which multiple products or units are tested in consecutive order to verify consistency and performance over a series of tests. This enables efficient evaluation of products in a production run or batch test.

Static test benches are used to test components or structures under fixed, immobile conditions in order to assess their strength, load-bearing capacity and structural integrity.

The classification indicates the type of vehicles for which the dynamic test benches are suitable, based on their engine power and their specific use.

A test bench is a special device or facility used to test, monitor, and analyze components, systems, or products under controlled conditions. Test benches are used in various industries to evaluate the performance, reliability, and quality of technical systems.

Thermal stability refers to the ability of a material to retain its properties at different temperatures. The climate test bench, for example, makes it possible to evaluate this stability by simulating different environmental conditions.

Undervoltage tests are performed to test the response of electrical devices or systems to low voltages and to ensure that they function properly under such conditions.

A vibration test is a test in which mechanical vibrations are applied to a product or system to analyze its response to vibration. This test is used to evaluate the structural integrity, performance, and reliability of the tested object under real vibration conditions.