| dc.description.abstract | This study evaluates the performance of the front disc brake system on a Toyota Vios through an experimental comparison of conditions before and after servicing (service brake). Tests were conducted at speeds of 10 km/h, 30 km/h, and 50 km/h using three variations of pedal force (10 N, 12 N, and 15 N). Measured parameters include braking time and distance, hydraulic pressure, caliper clamping force, frictional force, and braking torque. Data were collected on a dry asphalt straight track using a measuring tape, stopwatch, spring scale, and pressure sensors.
The results show a significant improvement after servicing: the percentage of stopping distance within the safety category increased from 33.33% to 88.88%. Maximum hydraulic pressure reached 63.7 kPa at 20 N pedal force, generating a clamping force of 115.28 N and braking torque of 21.90 Nm; at 15 N and 12 N, pressures of 47.71 kPa and 38.17 kPa were recorded with torques of 11.48 Nm and 5.25 Nm, respectively. The average stopping time and distance decreased by over 40% after servicing, indicating a linear relationship between pedal force and braking effectiveness.
In conclusion, replacing brake pads and servicing the hydraulic system significantly enhanced the Toyota Vios braking performance, making it more responsive and safer. The braking system demonstrated proportional characteristics: the greater the pedal force, the higher the hydraulic pressure, clamping force, frictional force, and braking torque generated. This study recommends further testing with a wider range of speeds and analysis of the influence of vehicle age and maintenance patterns on braking efficiency. | en_US |
