HS code-driven margin analysis

List of contents in this article:

• 1,HS code-driven margin analysis How much do you know about the working principle of the car engine start-up system?
• 2. What will you do for the maintenance of the car engine start system?
• 3, What is the composition of the electric control system of the car?
• 4. Fordy Accessories - Starting System

How much do you know about the working principle of the car engine start-up system?

1. When all the systems run smoothly, the car will start successfully, and the engine will begin to produce power. When we transfer power to the gearbox part by hanging gears, the car begins to run normally.

2. The working principle of the car start-up system is to make the engine transition from a stationary state to a working state, and to rotate the crankshaft of the engine with the help of external force.Start the internal combustion engine to make the combustible gas in the cylinder burn, start the work to circulate, and the crankshaft begins to rotate to the engine under the action of external force before it can run.

3. The starting principle of the car: In order to transition the engine from a stationary state to a working state, the crankshaft of the engine must be rotated by external force, so that the combustible mixture is sucked (or formed) in the cylinder and burned and expanded, and the working cycle is carried out automatically.

4. Working principle: engine working principle: converts the thermal energy generated by fuel combustion into mechanical energy, thus generating power; working principle of the transmission system: the mechanism that cuts off or transmits power and achieves different torques.

5. The basic function of the transmission system is to transmit the power emitted by the engine to the driving wheels of the car to generate driving force so that the car can run at a certain speed.

6. The working principle of the automobile start-up system is that the battery provides electricity. Under the control of the ignition switch and the start-up relay, the starter converts electrical energy into mechanical energy and drives the engine flywheel gear and crankshaft to rotate, so that the engine enters a self-running state, as shown in the figure.

What will you do for the maintenance of the car engine start system?

How to maintain the car ignition system? First of all, check the car ignition system to avoid damage to the ignition coil. Check the wire head of the clean spark frequently to avoid short circuit. If it takes a long time, it needs to be cleaned. If there are stains and oil stains, it should be cleaned and replaced in time.

Replace the fuel filter. When the fuel is processed through the engine, the fuel filter will filter out excess pollutants. However, after a period of continuous operation, the fuel filter may be overwhelmed.

First, the spark plug should be checked and replaced in time. After the spark plug is used for a long time, the gap will become larger, and the corresponding ignition energy will gradually weaken. In winter, the mixed gas formation is poor. If the ignition energy is low, it will lead to poor cold start.Second, the engine oil should be replaced with winter oil suitable for the region.

Therefore, we need to change the oil and filter elements regularly to maintain the engine, extend the service life of the engine, and always keep the engine in the best condition. 3 Avoid water entering the engine. When driving after the rain, if you encounter water on low-lying roads, do not drive hard.

How should the car engine be maintained? The engine start system of the car is closely related to the life of the engine. Therefore, we must clean the water tank of the engine in time to remove rust and dirt in it, so as to better ensure the good performance of the engine.

What is the composition of the electric control system of the car?

The electronic control system is mainly composed of sensors, control units and actuators.The core component is the control unit. Signal input device: various sensors, collect the signals required by the control system, and convert them into electrical signals and transmit them to the ECU through the line.

What is an electronically controlled car: introduction. The automotive electronic adjustment system is basically composed of sensors, electronic regulators (ECUs), drivers and adjustment program software.

The electronic control system is mainly composed of sensors, control units and actuators. The core component is the control unit. The electronic control system can be divided into the following four parts: 1) Engine and power transmission centralized control system, including engine centralized control system, automatic transmission control system, anti-lock braking and traction control system, etc.

The electronic control system is mainly composed of sensors, control units and actuators. The core component is the control unit.1. Signal input device: various sensors, collect the signals required by the control system, and convert them into electrical signals and transmit them to the ECU through the line.

The electronic control system consists of three major parts: sensor, controller (ECU) and actuator. The functions of these three parts are: sensor: real-time detection of diesel engine, vehicle operation status and user's operation idea - operation volume and other information, and send it to the controller.

The automotive electronic control system is basically composed of sensors, electronic controllers (ECUs), drivers and other parts, and the core components are electronic controllers.

Fredi accessories - starting system

1. The advantages of the 2014 Fredi are fashionable and dynamic appearance, allIt is equipped with an electronic anti-theft system for the engine, which is very worth buying, and the post-maintenance cost is relatively low, the fuel consumption economy is good, and the power performance of the 16-liter CVVT engine is excellent.

2. The fuel injector nozzle of Fredi is located in the cylinder head. The fuel injector of the car is a simple solenoid valve. When the electromagnetic coil is energized, suction is generated. The needle valve is sucked up and the nozzle is opened. The fuel is sprayed at high speed through the ring gap between the shaft needle and the nozzle of the needle valve head, forming a fog, which is conducive to full combustion.

3. Year's Freddy (check the transaction price | detailed explanation of the model), the engine fault light is on P0172 (the system is too thick 1 row). I went to the 4S store for testing, and it was said that it was an oil problem, and the fuel tank and oil line were cleaned.

4,In a word, it is necessary to replace all the uncertain accessories to repair the engine to ensure the performance of the engine.