The diesel engine electric dynamometer test bench system uses an AC electric dynamometer as its test core and is equipped with an imported four-quadrant active variable frequency inverter system as its controller. It can operate in four quadrants and directly feed energy back into the grid. The XLE-1000 measurement and control system serves as the control core, automatically completing test cycles defined by regulations and purchasers.

• GB17691-2018: National mandatory standard for pollutant emission limits and measurement methods for heavy-duty diesel vehicles, specifically for emission testing of diesel engines.
• GB/T 18297-2024: National recommended standard for automobile engine performance test methods, applicable to all types of automobile engines (including diesel and gasoline engines).
• GB/T 17692-2024: National recommended standard for test methods of net power of automobile engines and drive motors, applicable to all types of automobile engines (including diesel and gasoline engines).

1. Electric dynamometer: The main unit of the electric dynamometer is an AC motor, and its output end uses a German HBM brand torque flange for torque measurement.
2. Variable frequency inverter system: Uses ABB's ACS880 series frequency conversion controller. It adopts direct torque control technology (DTC) and it, together with the electric dynamometer, provides a high-performance and cost-effective solution for engine testing.
3. XLE1000 measurement and control system and control software: Seelong XLE1000 measurement and control system software is a dedicated measurement and control software that integrates control and data processing.
4. Data acquisition system: Contains temperature, pressure and other sensors and supporting modules to collect relevant parameters of various engine components.
5. Coolant constant temperature device: Adopts closed loop structure design, PLC control, can set and control the engine water inlet temperature.
6. Transient fuel consumption meter system: Can measure instantaneous and average fuel consumption, meeting steady-state, transient and dynamic testing requirements.
7. Opacimeter: Uses AVL opacimeter.
8. Electronic throttle: Dual voltage output, adjustable range 0-5V, 0-2.5V.
9. Blow-by meter: Double tank type, choose portable installation or installing it by suspending it onto the cantilever.

1. Accurate and reliable measurement: Equipped with a 0.05% FS high-precision torque sensor, it accurately captures low-speed, high-torque characteristics.
2. Strong adaptability to working conditions: Supports wide speed testing from 1000-3300 rpm, can simulate various working conditions.
3. Significant energy-saving effect: Feeding electrical energy back to the grid through the variable frequency inverter system, reducing energy consumption by more than 30%.
4. Stable and efficient system: Integrates high-precision data acquisition system and intelligent measurement and control system.
5. Compatible with a wide range of standards: Conforms to GB/T 18297, GB/T 19055 and other standards.

Can be customized

1. Heavy-duty commercial vehicle R&D: Test engine power performance, optimize matching and efficiency.
2. Engineering machinery verification: Simulate load mutation and other working conditions to verify the reliability of the engine in harsh environments.
3. Ship power testing: Simulate variable load conditions during navigation.
4. Generator set assessment: Detect voltage stability and continuous power supply capability under load.
5. Repair and remanufacturing inspection: Re-inspect the performance of the engine after repair.

From October 24th to 26th, 2024, the Russian International Testing and Control Exhibition was successfully held at the Moscow Klokus International Convention and Exhibition Center.

Seelong Intelligent Technology (Luoyang) Co., Ltd. was invited to participate in the exhibition, focusing on displaying its main products such as engine test benches and transmission test benches to the Russian market.

Seelong Intelligent Technology (Luoyang) Co., Ltd. is a high-tech enterprise specializing in equipment measurement, control, design, manufacturing, and sales services for power engineering systems in various fields such as aerospace, automotive, and new energy.

Seelong specializes in the research and development, production, and service of testing equipment for new energy motors, hybrid power systems, engines, transmissions, and more. Our main products include electric dynamometers, measurement and control systems, DC power supplies, and working condition guarantee systems.