Briefly describe how the car cruise system works?
2 Answers
How the cruise control system works: The cruise control unit reads the pulse signal from the vehicle speed sensor and compares it with the set speed, then issues commands to the servo mechanism to adjust the throttle opening, increasing or decreasing it to maintain the vehicle at the set speed. Here is a related introduction to cruise control: 1. Cruise control is used to maintain a constant speed for the vehicle. Once the car is set to cruise mode, the engine's fuel supply is controlled by the computer, which continuously adjusts the fuel supply based on road conditions and driving resistance to keep the vehicle at the set speed without the need to operate the accelerator. 2. Cruise control is increasingly listed as a mid-to-high-end feature in more private cars. Its function is to automatically maintain the vehicle speed as set by the driver after activation, allowing the car to travel at a fixed speed without the need to press the accelerator pedal.
Having driven trucks for over a decade, I know best about cruise control on long hauls. Simply put, you press a button on the steering wheel to set a speed, say 100 km/h. Then the car's computer kicks in, using wheel sensors to monitor speed in real time. If climbing a hill slows you to 98, the system signals the engine to inject more fuel; if descending pushes you to 102, it automatically eases off the throttle. The whole process requires no pedal input, letting your foot relax. But remember—it only manages acceleration, not braking, so you must take over for sharp turns or traffic jams. Newer models even feature adaptive cruise that automatically adjusts speed based on the car ahead, making highway drives effortless.
