Research On The General Performance Test Rig For Brakes Of The Light Trucks And The Middle Trucks

The braking performance is one of the crucial factors of ensuring the driving security and improving the driving performance. The big traffic accidents always relates to the too long stopping distance and the sideslip that happens during the emergent stopping. So, the braking performance is the important guarantee of the safe driving. The brakes are the key devices which restrict the movement of vehicles directly, and the most important safe parts. So, the braking performance is particularly crucial.Testing the brakes, checking the assembly, and estimating the general performance have become the crucial step of improving the braking performance. So, it is very necessary to develop a kind of test rigs which have good simulation performance and high testing accuracy.According to the national brake testing standard and the performance requirements, the single head inertia test rig for brakes is researched in this paper. This test rig load with the mechanical inertia and can simulates the inertia which the testing items required through adjusting the flywheels. This test rig is applicable to the drum and disk brakes driven with air or liquid on the light or middle trucks. The design on the test rig is the core of this paper. Firstly, the theory of brake design and the property of each brake are detailed introduced. Secondly, the key points of testing the braking performance are known after researching the factors which influences it. Thirdly, the shortage of our national brake testing standard is found by comparing with the foreign testing standard, and several suggestions are proposed for standard establishing. The significance of the test data are analyzed at the end.