An Automatically Programmed Quadruple Dynamometer for Vehicle Brake Testing

The multiple dynamometer described in this paper is capable of testing complete four-wheel braking systems similar to the actual vehicle operation by the use of magnetic tape programming techniques. Vehicle tests up to 6 hr in length can be accommodated on a single reel of tape.

The use of digital programming permits a high degree of test flexibility coupled with excellent test repeatability. Secondary advantages include the capability of performing these tests on an unattended basis, thereby effecting a savings in manpower.

The paper tape and magnetic tape programs can be cataloged and stored, and the test procedure can be duplicated at a later time if so desired.

The instrumentation system furnishes precise measurements of the braking parameters, thereby providing accurate test data for the design engineering group.