When a driver steps on the brake pedal in a vehicle equipped with power disc brakes, force travels through several mechanical and hydraulic stages to stop the vehicle. Arrange the following events in the correct sequence from the moment the pedal is pressed to the final stopping action at the wheel.
- 1Mechanical force is applied to the brake pedal arm and transferred to the power booster pushrod.
- 2The vacuum power booster multiplies the mechanical force using engine vacuum differential.
- 3Master cylinder pistons displace fluid and generate hydraulic pressure throughout the brake lines.
- 4Pressurized hydraulic fluid enters the caliper bore and pushes the caliper piston outward.
- 5Brake pads clamp against the rotating brake rotor to generate stopping friction.
Cevap
The correct sequence of brake actuation is: mechanical pedal force application, booster force multiplication, master cylinder hydraulic pressurization, caliper piston extension, and brake pad clamping on the rotor.
Automotive power disc braking operates in a strict mechanical-to-hydraulic chain: first, the driver applies mechanical pedal effort; second, the vacuum booster multiplies this effort; third, the master cylinder converts this multiplied force into hydraulic pressure; fourth, the hydraulic pressure pushes the caliper piston; and fifth, the caliper clamps the pads against the rotor to generate stopping friction.
Adım Adım Çözüm
Anahtar Kavram
Hydraulic and mechanical force transmission in automotive power disc braking systems
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