The engine management system uses various sensors and is the core of the entire automotive sensor. There are many types of sensors, including temperature sensors, pressure sensors, position and speed sensors, flow sensors, gas concentration sensors, and knock sensors.
The sensor on the car is used as the information source of the automotive electronic control system. It is the key component of the automotive electronic control system and is also one of the core contents of the automotive electronics technology research. Automotive sensors perform real-time, accurate measurement and control of various information such as temperature, pressure, position, rotational speed, acceleration, and vibration.
The sensor on the car is used as the information source of the automotive electronic control system. It is the key component of the automotive electronic control system and is also one of the core contents of the automotive electronics technology research. Automotive sensors perform real-time, accurate measurement and control of various information such as temperature, pressure, position, rotational speed, acceleration, and vibration. The following describes the core of sensors on the car, engine control sensors and several new sensor products.
The engine management system uses various sensors and is the core of the entire automotive sensor. There are many types of sensors, including temperature sensors, pressure sensors, position and speed sensors, flow sensors, gas concentration sensors, and knock sensors. These sensors convert the engine intake air volume, cooling water temperature, engine speed and acceleration/deceleration conditions into electrical signals and send them to the controller. The controller compares these information with stored information, and then outputs the control signals with accuracy. The engine management system can not only accurately control the fuel supply to replace the traditional carburetor, but also control the ignition advance angle and idle air flow, which greatly improves the performance of the engine.
The development of the automotive industry today has driven more sensors on the car. The characteristics of the sensors have also made the car more intelligent. For example, the tire pressure monitoring system uses a miniature pressure sensor to measure the air pressure in each wheel frame and passes it. The wireless transmitter transmits the information to the front of the driver. When the tire pressure is too low, the system will automatically issue an alarm to remind the driver to deal with it in time. This will not only ensure the safety of the car on the road, but also protect the tread, prolong the service life of the tire and achieve the purpose of saving fuel. The tire pressure monitoring sensor can accurately measure the tire pressure and temperature and transmit this information via a wireless signal to a receiver installed in the vehicle. The air pollution in the car now poses a new threat to the health of motorists. The threat is mainly from carbon monoxide. With the rapid increase in the number of car owners, the air quality in cars has begun to attract attention. The carbon monoxide sensor has the characteristics of high sensitivity, strong anti-interference and low power consumption, and is specially used to ensure the safety of the air quality in the vehicle. At the same time, the application is simple and the service life is long, so that the air quality in the vehicle can be monitored in time. The carbon monoxide sensor is divided into an automatic switching system for the inside and outside circulation of a car air conditioner, and a carbon monoxide alarm device for a passenger car and a passenger car.
At the People's and Vehicle Technology Exhibition 2003, a tilt sensor for anti-theft vehicles was introduced. The angle sensor uses a 2-axis acceleration sensor to detect when the vehicle is stolen when it is stolen. The tilt of the vehicle is caused and an alarm is issued. The acceleration sensor is an electrostatic capacity. formula. The British Insurance Association decided in April 2003 to provide preferential insurance for vehicles equipped with anti-theft angle sensors. Similar promotional activities will also be carried out in Japan where the number of vehicle thefts has soared. It is estimated that the market demand for angle sensors will become increasingly strong. The new thick-film piezoresistive non-contact automotive hydraulic pressure sensor uses thick-film force sensitive technology and surface micro-assembly technology to monitor engine oil pressure, which can realize low oil pressure alarm. It has passed the bench test, type test and 60,000 durability tests, and can directly replace the existing bimetallic slide wire YG2221G hydraulic pressure sensor. Compared with the existing slide-wire type hydraulic pressure sensor, it has the characteristics of high precision, no contact with mechanical parts, high reliability, long life, corrosion resistance, matching with digital instruments, low cost, and high performance to price ratio. It is not difficult to see that the application of acceleration sensors on Kai Motors will be the biggest trend in the automotive industry in the future.
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