Eight sensors on the car is which eight, all have what role?

What are the eight sensors on the car eight, what are their roles?

Modern cars in general is a set of mechanical structure and circuit design in a product, its core in addition to the traditional understanding of the three major components, is its core brain engine ECU management system. This system reads the data signals transmitted by the sensors on the car, and monitors the various working conditions of the car at all times. Traditional sensors can be roughly divided into eight categories according to their functions: pressure sensors, position sensors, temperature sensors, acceleration sensors, angular velocity sensors, flow sensors, gas concentration sensors and liquid level sensors.

, the role of the sensor

(a) pressure sensors

Pressure sensors are also divided into many kinds of pressure sensors, the main role is used to detect the pressure of the gas or liquid.

(2) Position Sensors

Position sensors are sensors that are installed in a specific position. The main purpose is to detect the engine speed, piston stop position, used to control the ignition of the cylinder stop signal, used to control the sequence of injection of the first cylinder stop signal and so on.

(C) Temperature Sensors

There are many kinds of temperature sensors

Control unit control unit will be based on the signals returned by these sensors to calculate the required temperature inside the car, the amount of air, etc., and then come to control the air mixing inlet, water valves, inlet and outlet converter plate, etc., in the case set by the driver to make the cockpit temperature to achieve the best results.

(D) acceleration sensor

Acceleration sensor has a variety of acceleration sensor is widely used in automotive acceleration sensor is piezoresistive acceleration sensor, simply put the main role of the acceleration sensor is to speed up the speed of response, piezoresistive acceleration sensor is mainly used in the automotive airbags (Airbag), ABS antilock braking system, electronic stabilization program (ESP). Stability Program (ESP), electronically controlled suspension systems and so on.

(E) angular velocity sensor

Mainly used in automotive navigation, vehicle movement position control and attitude control and other places that require accurate angle measurement, but the angular velocity of many people do not know.

(F) Flow Sensor

The flow sensor is one of the key components of the EFI system, the role is to measure the air flow through the sensor for a certain period of time, and will be related to the air flow of the signal to the ECU

(VII) Gas Concentration Sensor

Gas concentration sensors can be broadly categorized as follows: oxygen sensors, dilute mixed gas sensors.

Oxygen sensor function is used to detect the content of oxygen in the exhaust gas after combustion of the engine, usually installed on the exhaust pipe of the engine.

(H) level sensor

Level sensor is mainly used to detect: fuel level, cooling water level, oil level, electrolyte level, window washer fluid level, brake fluid level, etc., the level sensor to the container level signals into voltage signals, and then fed back to the electronic unit, we can accurately know the level of the container.

? In summary, the above is the role of the eight sensors.