| 主权项 |
1. A method for testing brake systems of motor vehicles in the manufacturing process at assembly lines of automobile manufacturers, wherein the brake pedal is operated using an automatically controlled device and wherein the pedal travel and pedal force are measured using associated instruments, wherein
a travel-force curve is determined based on pedal travel and pedal force during pedal movement which is analyzed using a physical brake system model; wherein the physical brake system model isolates design influences by individual components of the brake system by dividing the travel-force curve into a first section (AB) in which only the components of the brake mechanism are moving, a second, mostly linear section (BC), in which the brake master cylinder is set in motion, wherein this section is described by the straight line “g2”, a third, curved section (CD), and a fourth, mostly linear section (DE), wherein this section is described by the straight line “g3”; wherein a benchmark calculated from the shape of the curve, through which a vertical straight line “g1” is routed, is determined at the transition from the second to the third section; wherein a junction “F” is determined at the intersection of the straight line “g1” and the straight line “g3”; wherein the area that is formed between points “C-E-F” is calculated as an evaluation parameter for the brake system and wherein the travel difference between different benchmarks of various vehicles is taken into consideration when calculating the pedal travel. |
