The Fundamental Structure and Operating Principle of Automotive Chassis Dynamometers

A vehicle chassis dynamometer is an experimental setup used to test various performance characteristics of cars, such as power output and emission performance. When combined with other test benches and instrumentation, it can simulate a wide range of real-world driving conditions, accurately measuring the output power delivered by the car's drive wheels. Additionally, it enables the measurement of multi-condition emission levels and fuel consumption, providing valuable guidance for environmental agencies monitoring vehicle exhaust emissions. Compared to outdoor road tests, conducting vehicle experiments on a chassis dynamometer offers significant advantages, including enhanced safety, higher efficiency, and superior repeatability. Below, we’ll introduce the basic structure and operating principles of several common types of vehicle chassis dynamometers.

2021-11-09