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What are the methods for testing automotive engine power?

1 Answers

McThomas

07/30/25 6:37am

There are two main methods for testing automotive engine power: 1. Steady-state power testing (load testing or external load testing): Steady-state power testing refers to a method of measuring engine power on a dynamometer when the throttle opening, engine speed, and other parameters remain constant in a stable state. 2. Dynamic power testing (no-load testing or external load-free testing): Dynamic power testing refers to a method of measuring engine power when parameters such as throttle opening and engine speed are in a changing state. According to the power testing principle, dynamic power testing can be divided into two categories: (1) Measuring instantaneous power by determining instantaneous angular acceleration, which is an instrument solution that obtains instantaneous power by measuring the acceleration at a certain speed during the acceleration process. (2) Measuring average power by determining acceleration time, which is a solution that obtains average acceleration power by measuring the acceleration time within a certain speed range during the acceleration process.

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