Ruifeng S2 cruise ship can't be hung. What happened?

The reasons why the fixed-speed cruise of Ruifeng S2 in Pacific Auto Network can't be hung up are: 1, the fuse and relay of fixed-speed cruise are faulty, and the system can't work; 2. Cable harness failure; 3, constant speed cruise button contact wear; 4. There is something wrong with the engine or gearbox; 5. The cruise control switch is damaged, resulting in circuit failure (such as brake pedal sensor failure, wheel speed sensor failure and related circuit failure, etc. ); 6.ECU cannot receive the signal of cruise solenoid valve.

The cruising function of Ruifeng s2 is pressed on the left side of the steering wheel of s2, and the usage method is as follows: when the vehicle speed is above 40, the set key can be pressed to realize cruising, and the up and down addition and subtraction keys can accelerate deceleration. As shown in the figure below.

Constant speed cruise system (CCS for short) is also called constant speed cruise driving device, speed control system and automatic driving system. Its function is: after turning on the switch at the speed required by the driver, it can automatically maintain the speed without stepping on the accelerator, so that the vehicle can run at a fixed speed.

With this device, when driving on the expressway for a long time, the driver does not need to control the accelerator pedal, which reduces fatigue, unnecessary speed change and saves fuel. The working principle of the cruise control system is simply that the cruise control module reads the pulse signal sent by the vehicle speed sensor and compares it with the set speed, so as to send instructions to the servo to mechanically adjust the increase or decrease of the throttle opening to keep the vehicle at the set speed all the time.

(Photo/Text/Photo: Pacific Auto Network Q&A called Beast)