What is a Automotive Cleaning Flow Sensor?

Sewage cleaning flow sensor, comprise control reaction device, import anti-blocking device, impurity temporary storage device, outlet flow sensing device, shell, water inlet and water outlet, it is characterized in that described import anti-blocking device comprises two valves, filter screen, described impurity temporary storage device comprises a small pump, described impurity temporary storage device is connected to import anti-blocking device, interface is provided with valve, described outlet flow sensing device comprises flow rate sensing probe, flow rate sensing probe transmits signal to the control reaction device of system, Described control reaction device controls the operation of inlet anti-blocking device and magazine temporary storage device after receiving signal.

It can monitor whether the sensor flow channel is blocked in real time, and at the same time, when the sensor is blocked, it can remove impurities in time to ensure the measurement accuracy of the sensor.

This kind of sensor is generally used to measure exhaust gas, and it is a gas sensor.

An air flow sensor is a sensor that measures the flow of air into an intake engine. In order to obtain the optimal concentration of gas mixture under various operating conditions, the amount of air inhaled into the engine must be accurately measured at each moment, and this is the main basis for ECU calculation (control) of the fuel injection volume. If the air flow sensor or line fails, the ECU cannot get the correct air intake signal, and the fuel injection volume cannot be controlled normally, which will cause the mixture to be too thick or too thin, so that the engine will not run normally.

Common sensors and their functions are as follows:

1. Water temperature sensor.

Function: The water temperature sensor is used to sense the temperature of the engine cooling water, that is, the cold start and warm-up signal, at this time, the microcomputer controller outputs the control signal to increase the amount of fuel injection, so that the mixture is thickened to facilitate the cold start of the engine and the rapid warm-up.

2. Pressure sensor.

Function: The pressure sensor is mainly used to sense the vacuum pressure formed by the inlet air flow, and converts it into an electrical signal and transmits it to the microcomputer controller, which calculates and processes the fuel injection volume and the fuel injection time signal.

3. Oxygen sensor.

Function: The oxygen sensor is used to detect the oxygen content in the generator, determine whether the combustible mixture is too concentrated or too thin, and whether the air-fuel ratio deviates from the theoretical value (:1), and output a feedback signal to the engine electronically controlled fuel ECU for correcting the size of the fuel injection at any time, so that the air-fuel ratio of the mixed air is kept near the theoretical value, so as to ensure that the harmful gas content of the automobile exhaust does not exceed the environmental protection requirements.

4. Vehicle speed sensor.

The vehicle speed sensor is used to measure the driving speed of the engine and transmit this signal to the ECU to control the air-fuel ratio of the engine idle and the acceleration and deceleration of the car.

5. Inlet air temperature sensor.

The inlet air temperature sensor is used to detect the inlet air temperature and input the inlet air temperature signal to the ECU, and the ECU corrects the ignition timing of the fuel injection volume according to the level of the inlet air temperature. Optimum combustion conditions for the engine.

6. Crankshaft position sensor.

The crankshaft position sensor mainly provides the reference signal of the ignition time and the fuel injection time of the ignition system.

7. Airflow sensor.

Barometric pressure sensors are used to sense outside pressure at different altitudes to correct ignition time and fuel injection amount. The air flow sensor is cooled by the inlet air to cool the heating wire. Change its resistance to measure the air flow value.

Say the inlet air, the inlet pressure, the inlet flow rate, the test air intake volume to the computer data inlet air temperature, the test inlet temperature data to the computer water temperature sensor.

The test water temperature is provided to the computer to correct the signal oil pressure, test the oil pressure, when the oil pressure is low, it will alarm the position of the camshaft and crankshaft, be responsible for the ignition time and the oxygen sensing of the cylinder signal, be responsible for detecting the exhaust gas, can correct the fuel injection amount of 3-element catalysis, improve the exhaust gas, etc.

Inlet Air Pressure Sensor, Air Flow Sensor, Bending Position Sensor, Oxygen Sensor, Inlet Air Temperature Sensor, Water Temperature Sensor: Deflagration Sensor.

There are speed sensors, temperature sensors, shaft speed sensors, pressure sensors, etc., angle sensors, torque sensors, hydraulic sensors; Vehicle speed sensor, acceleration sensor, vehicle height sensor, roll angle sensor, corner sensor, etc.

Classification of the working principle of the sensorPhysical sensor is the application of physical effects, such as piezoelectric effect, magnetostriction phenomenon, ionization, polarization, thermoelectric, photoelectric, magnetoelectric and other effects. Small changes in the amount of the measured signal are converted into electrical signals.

Chemical sensors include those that cause and effect phenomena such as chemical adsorption and electrochemical reactions, and small changes in the amount of the measured signal will also be converted into electrical signals. Some sensors cannot be classified as either physical or chemical.

One of the hallmarks of modern automotive technology is the increasing number of components that are electronically controlled. For example, electronically controlled fuel injection, exhaust emissions, anti-lock braking systems, automatic air conditioning, headlight brightness control, automatic driver's seat adjustment, steering control, electronically controlled suspension, and so on. The work of electronic automatic control depends on the information of the sensors.

According to statistics, there are about dozens of sensors on the general car, more than 100 sensors in the luxury car, and it is expected that by 2005, the global demand for automotive sensors will reach 100 million.

According to the role of the sensor, it can be classified as a sensor that measures temperature, pressure, flow, position, gas concentration, speed, brightness, dry humidity, distance and other functions. Therefore, the role of sensors in the car is very important.

Automotive sensors, which used to be used solely in engines, are now being used in chassis, body, and lighting electrical systems. These systems use more than 100 sensors. Among the wide variety of sensors, the common ones are:

1. Sensors used in electronically controlled fuel injection engines.

Intake pressure sensor: reflects the change in the absolute pressure in the intake manifold and provides a reference signal to the ECU (engine electronic control unit) to calculate the duration of fuel injection;

Air Flow Sensor: Measure the amount of air drawn in by the engine and provide it to the ECU as a reference signal for the injection time;

Throttle position sensor: measure the angle of throttle opening, and provide ECU as a reference signal for oil cut-off, control of fuel-air ratio, and ignition advance angle correction;

Crankshaft angle sensor: detects the crankshaft and engine speed, and provides it to the ECU as a reference signal to determine the ignition timing and working sequence;

Oxygen sensor: detects the oxygen concentration in the exhaust gas and provides it to the ECU as a reference signal to control the fuel-to-air ratio near the optimal value (theoretical value);

Inlet air temperature sensor: detect the inlet air temperature and provide it to the ECU as the basis for calculating the air density;

Water temperature sensor: detects the temperature of the coolant and provides engine temperature information to the ECU;

Deflagration sensor: Installed on the cylinder block to detect the deflagration status of the engine, and provide the ECU to adjust the ignition advance angle according to the signal.

2. Sensors used in chassis control.

These sensors are mainly used in transmissions, steering, suspensions and ABS.

Transmission: vehicle speed sensor, temperature sensor, shaft speed sensor, pressure sensor, etc., direction sensor angle sensor, torque sensor, hydraulic sensor;

Suspension: speed sensor, acceleration sensor, body height sensor, roll angle sensor, corner sensor, etc.;

What are oxygen sensors and air flow meters for? The mechanic will tell you.

The object it detects turns into an electrical signal and transmits it to the ECUFor example, the knock sensor converts the vibration signal into an electrical signal to the ECU (its material is piezoelectric ceramic).

Hehe, a lot indeed. But you give too few points. Typing is very tiring, I never copy so I can't answer comprehensively Let's talk about the intake first, the intake pressure, the intake flow effect, the test air intake volume to the computer data intake temperature, the temperature data of the test intake air is transmitted to the computer water temperature sensor, the test water temperature is provided to the computer to correct the signal oil pressure, the test oil pressure, when the oil pressure is low, it will alarm the camshaft and crankshaft position, responsible for the ignition time and the oxygen sensing of the cylinder signal, responsible for detecting the exhaust gas, can correct the fuel injection amount of 3 yuan catalysis, improve the exhaust gas and so on... A lot.

There are about 100 kinds of sensors on the car. The main sensors are:

1.Air flow meter: measures the amount of air inhaled by the engine and provides it to the ECU as a reference signal for the injection time;

2.Throttle position sensor: measure the angle of throttle opening, and provide ECU as a reference signal for oil cut-off, control of fuel-air ratio, and ignition advance angle correction;

3.Crankshaft position sensor: detect the crankshaft and engine speed, and provide it to the ECU as a reference signal to determine the ignition timing and working sequence;

4.Oxygen sensor: detects the oxygen concentration in the exhaust gas and provides it to the ECU as a reference signal to control the fuel-to-air ratio near the optimal value (theoretical value);

5.Inlet air temperature sensor: detect the inlet air temperature and provide it to the ECU as the basis for calculating the air density;

6.Coolant temperature sensor: detects the temperature of the coolant and provides engine temperature information to the ECU;

7.Detonation sensor: Installed on the cylinder block to detect the deflagration status of the engine, it is provided to the ECU to adjust the ignition advance angle according to the signal.

The vehicle sensor is the input device of the automobile computer system, which converts the information of various working conditions in the operation of the car, such as vehicle speed, temperature of various media, engine operating conditions, etc., into electrical signals and transmits them to the computer, so that the engine is in the best working condition.

There are many sensors in automobiles, and when judging the failure of the sensor, it is necessary to consider not only the sensor itself, but also the entire circuit where the fault occurred. Therefore, when looking for faults, in addition to the sensor, it is also necessary to check the wiring harness, the connector, and the relevant circuitry between the sensor and the electronic control unit.

1.Crankshaft speed transmitter is used to detect engine speed and determine the top dead center of one (four) cylinder.

2.Camshaft position sensor for distinguishing one (four) cylinder compression top dead center.

3.Throttle position sensor, which detects the engine's throttle position (also used to provide engine load signals).

4.Knock sensor to detect if the engine is detonation.

5.Water temperature sensor to detect engine coolant temperature (provides engine temperature signal).

6.Inlet air temperature sensor to detect inlet air temperature.

7.Intake manifold absolute pressure sensor to detect the inlet pressure within the intake pipe.

8.An air flow meter to detect the quality of the inlet air.

9.Accelerator pedal position sensor to detect accelerator pedal position.

10.Wheel speed sensor to detect wheel speed.

11.Vehicle speed sensor to detect vehicle speed.

In addition, there are wind speed sensors, rain sensors, light intensity sensors, vehicle height sensors, fuel level sensors, fuel temperature sensors, oil pressure sensors, injector lift sensors, and so on.

1. According to the physical quantity classification of the sensor, it can be divided into displacement, force, velocity, temperature, flow, gas composition and other sensing containers.

2. According to the working principle of the sensor, it can be divided into resistance, capacitance, inductance, voltage, Hall, photoelectric, grating, thermocouple and other sensors.

3. According to the nature of the output signal of the sensor, it can be divided into: the output is a switching quantity ("1" and"0" or "on" and "off"); The output is an analog sensor; The output is a digital sensor with pulse or **.

The common types of automotive sensors are, throttle.

Position sensor, intake pressure sensor, crankshaft position sensor, air flow capacity sensor, knock sensor, temperature sensor, engine speed sensor, vehicle speed sensor SPD, etc., sensor principle related information.

Principle of throttle position sensor: The throttle position sensor is installed on the throttle and is used to detect the opening of the throttle. It is linked to the throttle valve by means of a lever mechanism, which in turn reflects the different operating conditions of the engine.

This sensor can detect different operating conditions of the engine and input it into the electronic control unit (ECU) to control different fuel injection volumes.

Intake pressure sensor principle: The intake pressure sensor can measure the absolute pressure in the intake manifold according to the load state of the engine, and convert it into an electrical signal and a speed signal to send it to the computer together as the basis for determining the basic fuel injection volume of the injector.

1. Air flow sensor to detect the air intake of the engine and control the amount of fuel injection.

2. Inlet pressure sensor, detect the vacuum degree of the inlet manifold and judge the size of the air intake.

3 Throttle position sensor detects throttle opening and controls the amount of fuel injected during acceleration.

4. Camshaft position sensor, detect camshaft position, determine the top dead center of a cylinder compression stroke, and control sequential fuel injection and ignition.

5. Crankshaft position sensor, detect crankshaft position and engine speed, control fuel injection and ignition.

6. Oxygen sensor, detect the oxygen content in the exhaust gas, judge the concentration of the mixture, and correct the air-fuel ratio.

7. Water temperature sensor to detect the water temperature of the engine, correct the ignition time and fuel injection amount.

8 Knock sensor, detect whether the engine is knocking, delay the ignition time, and eliminate knocking.

Extended information: The characteristics of sensors include: miniaturization, digitization, intelligence, multi-functionalization, systematization, and networking. It is the first link to realize automatic detection and automatic control.

The existence and development of sensors allow objects to have senses such as touch, taste, and smell, allowing objects to slowly become alive.

It is usually divided into ten categories: thermal elements, photosensitive elements, gas-sensitive elements, force-sensitive elements, magnetic sensitive elements, moisture-sensitive elements, acoustic components, radiation-sensitive elements, color-sensitive elements and taste-sensitive elements according to their basic sensing functions.

The low cost and ease of use of vision sensors have attracted machine designers and process engineers to integrate them into a wide range of applications that once relied on manual labor, multiple photoelectric sensors, or no inspection at all. Industrial applications for vision sensors include inspection, metrology, measurement, orientation, defect detection, and sorting.