MEMS sensors make cars smarter and safer

Demand for sensors in automotive electronic systems

1. As automobiles develop in the direction of intelligence and automation. The demand for various types of sensors in automotive electronic systems is growing rapidly. In order to realize autonomous driving or assisted driving functions. Vehicles need to integrate external sensors such as on-board cameras, millimeter wave radar, lidar, and so on. At the same time also need a large number of small built-in sensors to realize the body attitude control, dynamics control and other functions.

2. MEMS technology can develop miniature sensors that are compact, cost-effective, and reliable. For example, accelerometers, gyroscopes and so on. These MEMS sensors can be widely used in engine control, body stabilization, braking and other electronic systems. Meet the demand for highly integrated and reliable sensing solutions for automobiles.

MEMS Humidity Sensor

1. MEMS humidity sensor is used to monitor the working status of automobile air conditioning system and the air quality inside the car. It can measure the humidity of fresh air entering the air conditioning system, and precisely control the air conditioning adjustment according to the humidity parameter to ensure the dryness and comfort in the car.

2. Because of its small size and low cost, the MEMS humidity sensor can be easily integrated into the car interior to realize the intelligent monitoring of the air conditioning and the air quality inside the car, providing users with a better riding experience.

MEMS Pressure Sensor

1. MEMS pressure sensors can be used to monitor parameters in several automotive systems. In the engine system, MEMS pressure sensors can be installed in the intake manifold to measure the intake pressure, which can be fed back to the engine control unit to adjust the ignition timing, mixture gasification and other parameters.

2. In the oil pressure system, the MEMS pressure sensor detects changes in oil pressure to ensure that the lubrication system is in the best working condition.

3. In addition, the MEMS pressure sensor is also a key component for detecting and monitoring the air pressure of each tire to ensure that the tires are in the appropriate air pressure range.

MEMS Airflow Sensor

1.MEMS airflow sensors can be used to measure parameters such as air intake and air-fuel ratio of automobile engines. It can accurately detect the quality of air entering the engine cylinder and calculate the air intake according to the airflow. 

2. In addition, the oxygen content data fed back by the O2 sensor can be used to monitor and optimize the air-fuel ratio of the engine in real time, so as to achieve the purpose of energy saving and emission reduction.

Looking Ahead

1. As automobiles continue to develop in the direction of intelligent and autonomous driving, MEMS sensors are expected to be more widely and deeply applied in automotive electronic systems. In the power system, MEMS sensors can realize more accurate control of the engine, while new energy vehicles also need a large number of MEMS sensors for battery and motor management.

2. In the safety system, all kinds of MEMS inertial sensors can greatly improve the level of active and passive safety. In addition, multi-sensor fusion system for autonomous driving is also an important field.

3. It can be predicted that MEMS sensors will help the car to realize by driving to assisted driving. And then to the leap of fully automatic driving, bringing higher safety and comfort. China as a large country of automobile production and consumption, also has a huge MEMS sensor application space.