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In order to reveal the influence of the viscosity of the transmission oil on the braking performance of the hydraulic retarder, the change law of the viscosity of the hydraulic retarder at different temperatures is analysed, and the influence of the viscosity of the working medium on its braking performance is analysed. The results show that: low-viscosity transmission oil can increase braking torque.

Simulation Research on the Viscosity Characteristics of Hydraulic Retarder