| Since the1960s, the heavy lorries industry has been a huge development. For a longdownhill in the mountains of heavy lorries vehicles traveled, the continuous braking system isessential. As one of the continuous braking systems, the engine and brake system can providegreater stability for automotive braking power can ensuring a stable running speed. Despitethe continuous braking system has been applied to heavy lorries for a long time, but researchand analysis on the analysis model and its ability downhill braking characteristics of lesspaper are to simulate and test, the method of combining the engine braking features in-depthstudy.Firstly, select the test vehicle, and the engine braking tests, get each gear the car enginebrake braking characteristics. According to the characteristics of the engine brake, the insideof the cylinder, simulating engine braking, building mathematical model. Finally, to comparethe simulation results and experimental data and to analyze the impact of various main enginebraking factor. Ultimately optimize the model so that the case can not be tested for the abilityto analyze the engine brake.The results of the research play a practical significance role onsafety in continuous downhill in China’s mountain area. |