How does a rotary slide idle control valve work?

You're talking about three-wire, right? I will say according to my understanding, and I can point out what is wrong.

It has three wires, one power supply, two control wires. The control line is controlled by the ECU. Inside the solenoid valve are two sets of coils, which share a power supply, but each uses a tie control line, that is, these three wires.

Between these two sets of coils is a permanent magnet.

This permanent magnet is connected to a rotary slide valve, that is, a valve that controls the air intake, and the two control wires are connected to the ECU, which controls the lapping of these two sets of coils by the ECU, and generates a magnetic field to drive the permanent magnet to rotate, and the permanent magnet is connected to the slide valve, and it also rotates, and the frequency of the computer control coil is very fast, according to the duty cycle.

The signal is to control the two sets of coils respectively, and the sequence of the two sets of coils is controlled to balance the thrust of the magnetic field and control the opening. The four-line is also this principle, not much different, this is a personal opinion. Do not spray.

The ceo controls the opening of the control valve when the idle control valve is working by controlling the duty cycle of the two coils.

When the duty cycle is 50%, the average energizing time of the two coils is equal, and the magnetic field strength generated by the two coils.

Equal, electromagnetic force.

The law of mutual cancellation does not occur, the deflection accounts for more than 50%, the average energizing time of the two coils increases and the other decreases, and the magnetic field strength generated by the two is also different, so the valve shaft is deflected at a certain angle to control the valve to open the idle air port control valve, and the rotation angle between the fully closed position and the fully open position is limited to 90 degrees, E is controlled, and the adjustment range of the empty station ratio is 18% 82%.

Auxiliary air conditioner.

The idle control valve is installed in the gasoline injection system of the throttle body, which is fitted with a stepper motor-type idle control valve.

According to the ignition signal, when the engine speed is lower than 750 rpm, the idle control valve will be activated in time to increase the engine speed, and when the engine speed exceeds 1050 rpm, the idle control valve will stop working. In vehicles equipped with air conditioning systems, this control valve is also known as an idle accelerator valve. After the air conditioner compressor operates, the engine load is generated, the engine idle speed is reduced, and the idle control valve acts accordingly to keep the idle speed stable.

Its function is to automatically adjust the idle speed of the engine, so that the engine can run stably at the set idle speed.

In cars that use air conditioning or steering boosters, the electronic control unit automatically raises the idle speed through an idle control valve to prevent the engine from stalling due to increased load.

Idle speed control principle.

The idle control valve is powered by an ignition switch. Once the ignition switch is in the ON position, the idle control valve is energized and the engine computer controls its circuitry grounded.

This valve is used to adjust the idle speed when the operating parameters of the engine deviate from the normal value. Idle speed is regulated by controlling the amount of air that bypasses the throttle body.

After the engine starts, the idle control valve is opened for a period of time, and the air intake increases, so that the engine idle speed is increased by about 150 rpm to 300 rpm. When the engine coolant temperature is low, the idle control valve opens to get a suitable fast idle. Depending on the coolant temperature, the computer controls the position of the plunger of the idle control valve by varying the signal strength transmitted to the idle control valve.

The stepper motor idle control valve is the most widely used idle control device in the world.

It is used to open the bypass air duct of the automotive EFI system to adjust the bypass ventilation so that the engine speed reaches the required target value. Structural principle: a rotor composed of a permanent magnet, a stator composed of an excitation coil, a lead screw and a valve that converts rotary motion into linear motion.

It uses the stepping signal provided by the system to carry out conversion control, so that the rotor rotates forward or reverse, so that the valve core (screw) can carry out telescopic movement, so as to achieve the purpose of adjusting the section of the side ventilation duct, so as to stabilize the idle speed and achieve the ideal idle speed.

Inspection of the idle control valve.

1.Remove the intake tube from the throttle body.

2.Start the engine.

3.Place your finger on the throttle hole in the lower part of the throttle body. When the engine is in a cold state (the engine cooling water temperature is below this temperature, you should feel the airflow. If the airflow is not felt, the fast idle valve should be replaced and double-checked).

The working principle of the idle control valve: the idle control valve is powered by the ignition switch. As soon as the ignition switch is turned to the ON position, the idle control valve is energized and the engine computer controls its circuitry to ground.

When the engine operating parameters deviate from the normal value, the valve is used to regulate the idle speed. The idle speed is regulated by controlling the amount of empty air in the bypass throttle body. After the engine starts, the idle control valve is opened for a period of time, and the air intake increases, which increases the engine idle speed by about 150r-300r.

When the engine coolant temperature is low, the idle control valve opens to get a suitable fast idle. Depending on the coolant temperature, the computer controls the position of the idle control valve plunger by changing the signal strength transmitted to the idle control valve. The stepper motor idle control valve is currently the most widely used idle control device in the world.

It is used to open the bypass air duct carefully excavated in the EFI system of the car to adjust the bypass ventilation so that the engine speed reaches the required target value. Principle: It is composed of a rotor composed of permanent magnets, a stator composed of an excitation car magnetic coil, a feed screw and a valve that can convert rotary motion into linear motion.

It uses the stepping signal provided by the system to carry out conversion control, so that the rotor rotates forward or reverse, and the valve core (screw) expands and contracts to adjust the cross-section of the bypass air channel, so as to stabilize the idle speed and achieve the ideal idle speed.

Millions of car purchase subsidies.

The working principle of the idle control valve is as follows: 1. The idle control valve is powered by the ignition switch. When the ignition switch is placed in the ON position, the idle control valve is energized and the engine computer controls its circuit.

2. When the working parameters of the engine deviate from the normal value, use this valve to adjust the idle speed. The idle speed is adjusted by controlling the air volume of the bypass throttle body. 3. After the engine starts, open the idle control valve for a period of time to increase the air intake, so that the engine idle speed rises by about 150r min-300r When the temperature of the engine cooling stove fiber liquid is low, open the idle control valve to obtain a suitable fast idle speed.

Depending on the temperature of the coolant, the engine controls the position of the plunger of the idle control valve by changing the signal strength transmitted to the idle control valve. When the solenoid coil of the idle control valve is energized, an electromagnetic attraction is generated. When the electromagnetic attraction generated by the coil exceeds the elastic force of the return spring, the valve shaft moves the valve column upward, opening the bypass path.

The magnitude of the electromagnetic force generated by the coil determines the opening of the control valve. The ECU also controls the magnetic field strength by controlling the duty cycle of the pulse signal from the input coil and the amount of idle air by adjusting the opening of the control valve.

The working principle of the idle control valve: 1. The idle control valve is powered by the ignition switch, as long as the ignition switch is turned back to the ON position, the idle control valve is energized, and the engine computer controls its circuit; 2. When the working parameters of the engine deviate from the normal value, Sun Du uses the valve to adjust the idle speed. The idle speed is adjusted by controlling the amount of air in the bypass throttle body.

After the engine starter, the idle control valve is opened for a period of time, and the air intake increases, so that the engine idle speed is increased by about 150r min-300r min; 3. When the engine coolant temperature is low, the idle control valve is opened to obtain a proper fast idle speed. The engine computer controls the position of the idle control valve plunger by changing the signal strength transmitted to the idle control valve based on different coolant temperatures.

The working principle of the idle control valve: the idle control valve is powered by the ignition switch, as long as the ignition switch is turned to the ON position, the idle control valve is energized, and the engine computer controls its circuit.

When the engine's operating parameters deviate from the normal value, the valve is used to adjust the idle speed. The idle speed is adjusted by controlling the amount of air in the bypass throttle body. After the engine starts, the idle control valve is opened for a period of time to increase the air intake, which increases the engine idle speed by about 150r-300r.

When the engine is cold and the fluid temperature is low, the idle control valve opens to obtain a proper fast idle speed. The engine computer controls the position of the idle control valve plunger by changing the signal strength transmitted to the idle control valve based on different coolant temperatures. The stepper motor idle control valve is one of the most widely used idle control devices in the world.

It is used to bypass the opening of the air passage of the automotive EFI system, so as to adjust the bypass air volume so that the engine speed reaches the required target value. Structural principle: It is composed of a rotor composed of a permanent magnet, a stator composed of an excitation coil, and a feed screw and valve that converts rotary motion into linear motion.

It uses the stepper signal supplied by the system to convert the source volt, so that the rotor can rotate forward or reverse, so that the valve core (screw rod) can carry out telescopic movement to achieve the purpose of adjusting the bypass air duct cross-section, so as to stabilize the idle speed and achieve the ideal idle speed.

The steering machine is also called the steering gear. It is the most important part of the car for the steering function, of which the hydraulic steering machine is divided into.

Mechanical hydraulic power steering system and electro-hydraulic power steering systemMechanical hydraulic power steering system 1. The mechanical hydraulic power steering system is generally composed of hydraulic pumps, oil pipes, pressure and flow control valve bodies, V-shaped transmission belts, oil storage tanks and other components.

2. Regardless of whether the car is steered or not, this system has to work, and when the speed of the large steering vehicle is low, the hydraulic pump needs to output more power to obtain a relatively large boost. So, it's also a waste of resources to a certain extent. Can recall:

Driving such a car, especially when turning at low speeds, feels that the direction is heavier and the engine is more laborious. Due to the high pressure of the hydraulic pump, it is also easier to damage the booster system.

In addition, the mechanical hydraulic power steering system consists of a hydraulic pump, pipelines and cylinders, in order to maintain pressure, regardless of whether the steering power is needed, the system must always be in working condition, and the energy consumption is high, which is also a reason for resource consumption. Generally, economy cars use more mechanical hydraulic power assist systems. Electro-hydraulic power steering system 1, main components:

Oil storage tank, power steering control unit, electric pump, steering machine, power steering sensor, etc., of which power steering control unit and electric pump are an integral structure.

2. Working principle: The electro-hydraulic steering power assist system overcomes the shortcomings of the traditional hydraulic steering power assist system. The hydraulic pump it uses is no longer directly driven by the engine belt, but uses an electric pump, and all its working states are calculated by the electronic control unit according to the vehicle's driving speed, steering angle and other signals to calculate the most ideal state.

To put it simply, when the steering is at low speed, the electronic control unit drives the electro-hydraulic pump to output more power at high speed, so that the driver can play the direction with less effort; When the car is driving at high speed, the hydraulic control unit drives the electro-hydraulic pump to run at a lower speed, which does not affect the need for high-speed steering and saves a part of the engine power.