| 摘要 |
<p>A test system (10) uses the four square principle for loading front wheel drive hubs (161) of automobiles under torque, and provides the necessary loads on the front wheel drive unit for adequate testing. The unit under test may be subjected to "steering" loads, and to torque through load and drive frame assemblies (20, 21); to axial loads using a frame (194, 201) and actuator (220); and to "jounce" through a frame (50) and actuator (52) which simulates vertical loads on front wheel drives of automobiles caused by road irregularities, holes or other obstacles. The present device permits application of all of these loads into four separate front-wheel drive-steering hubs (161) for efficient testing. The mechanical configuration insures the ability to precisely control the loads in the various modes of operation.</p> |
