2022 High quality Mg Rx8 Original Parts - SAIC MG RX5 Fuel tank door cable 10096522 – Zhuomeng

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The principle of the oil line

The traditional pull-wire throttle is connected to the throttle pedal through one end of the steel wire and the throttle valve at the other end. Its transmission ratio is 1: 1, that is to say, how much we use our feet to step on the throttle open Angle is how much, but in many cases, the valve should not open such a large Angle, so this season the valve open Angle is not necessarily the most scientific, although this way is very direct but its control accuracy is very poor. And electronic throttle it is through the cable or wire harness to control the throttle opening, from the surface is to replace the traditional throttle line with cable, but in essence is not only a simple change of connection, but can achieve automatic control function of the whole vehicle power output.

When the driver needs to accelerate the accelerator, the pedal position sensor will perceive the signal through the cable to the ECU, ECU after analysis, judgment, and issued a command to the drive motor, and the drive motor control the throttle opening, in order to adjust the flow of combustible mixture, in large load, the throttle opening is large, into the cylinder of combustible mixture more. If the use of pull wire throttle can only rely on the foot to step on the throttle pedal depth to control the throttle opening, it is difficult to adjust the throttle opening Angle to reach the theoretical air-fuel ratio state, and electronic throttle can through the ECU sensor data collected for analysis, comparison, and issued instructions to the throttle actuator action, the throttle to the best position, In order to achieve different loads and working conditions can be close to the theoretical air fuel ratio of 14.7:1 state, so that the fuel can be fully burned.

Electronic throttle control system is mainly composed of throttle pedal, pedal displacement sensor, ECU (electronic control unit), data bus, servo motor and throttle actuator. The displacement sensor is installed inside the accelerator pedal to monitor the position of the accelerator pedal at any time. When the change of the accelerator pedal height is detected, the information will be sent to the ECU instantly. The ECU will calculate the information and the data information from other systems, and calculate a control signal, which will be sent to the servo motor relay through the line. The servo motor drives the throttle actuator, and the data bus is responsible for the communication between the system ECU and other ECU. Since the throttle is adjusted via the ECU, electronic throttle systems can be configured with various features to improve driving safety and comfort, the most common of which are ASR (traction control) and speed control (cruise control).

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