The invention discloses a test method for simulating real vehicle cold start emission test by using an engine pedestal, and belongs to the technical field of engines. According to the test method, the contribution of upgraded and optimized parts to emission can be quickly verified, and the test
verification efficiency is greatly improved. The test method comprises the following steps that S1, the temperature of engine oil and the temperature of cooling liquid of an engine are reduced to the
room temperature; S2, the engine is connected with emission direct extraction equipment and air-fuel
ratio measurement equipment, and a
cold start test is carried out; s3, after the engine is successfully started, the engine enters an idling working condition; and S4, after a period of time, the rotating speed and the torque are increased, the engine is preheated,
data recording and analysis are conducted in the test process, and the emission performance of the current engine state can be judged through a
test data curve. According to the test method, an efficient test method is provided for design, optimization and development of engine parts and CAE
simulation verification, a new direction is provided for a national sixth engine bench emission development test, and the test method has a good application prospect.