An inter-vehicle relationship test bench which can simulate the relative motion of the adjacent vehicle ends is introduced. The test bench is driven by 14 actuators. A three-dimensional model including track, train, and test bench is established to solve the control instructions of the 14 actuators. The posture of the train running on the track is converted to the control instructions of the actuators based on the theory of space coordinates position and pose transformation. A virtual prototype model of the test bench is established before bench test to check the control instructions of the actuators and solve the relative position and posture of the adjacent vehicle ends. After determining the safety and reliability of the test, the bench test is carried out to measure the relative position and posture of the adjacent vehicle ends and compare with the results of the simulation. The error of the test and simulation is small, which proves the correctness of the test. The test proves that the inter-vehicle relationship test bench has the ability to simulate the actual running state of two adjacent vehicle ends and can provide design reference for the design of the inter-vehicle connections of new vehicle model. KeywordsVehicle engineering, inter-vehicle relationship test bench, bench test, adjacent vehicle ends, control instructions of the actuators Date
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