Automotive electronic control components—automotive body network system Chengdu Panfeng Technology

Automotive electronic control components Automotive body network system
Automotive electronic control systems can be roughly divided into four parts: engine electronic control system, chassis integrated control system, body electronic safety system, information communication system. The most important one is the engine electronic control system. The engine electronic control system basically consists of sensors, electronic controllers, drivers and control program software. Chengdu Panfeng Technology, an automobile body network system research and development company, said: Domestic electronically controlled engine systems are still in an immature stage. On the one hand, because the application of electronically controlled engines in the market is in the exploratory stage, it is often necessary to upgrade the underlying control program of the electronic control unit. During the engine trial assembly phase, a large number of soft faults often occur due to poor vehicle matching. Even system soft faults may occur after batch delivery to end users.
Electronic control components
Microcomputer-centered. It also includes pre/D converters, digital signal buffers, and post-signal amplifiers. The microcomputer has fast computing speed, high precision, real-time control and multiple interrupt response functions. At present, in addition to bits and bit microcomputers, bit microcomputers, especially bit microcomputers, have begun to be gradually used. And not only general-purpose microcomputers and automotive microcomputers dedicated to single-chip microcomputers have also been developed. It is the rapid development of microcomputer technology that promotes the continuous improvement of automobile electronic control technology. It can be said that the current general development trend is the transition from single-system stand-alone control to multi-system centralized control. In the near future, automobile electronic control systems will use computer network technology to connect various systems such as engine electronic control systems, body electronic control systems, chassis electronic control systems, and information and communication systems to form an in-machine distributed computer network to achieve comprehensive automotive electronic control.
Sensors
The working conditions of automotive sensors are extremely harsh, so it is crucial that the sensor can work accurately and reliably. In recent years, theoretical research and material applications have developed rapidly in this field. Semiconductor and metal film technology, ceramic sintering technology, etc. have developed rapidly. There is no doubt that intelligence, integration and digitization will be the future development trend of sensors.
From early classical control to current intelligent control, control theory has been widely used in automotive electronic control. Mainly include D control, optimal control, adaptive control, sliding mode control, fuzzy control, neural network control and predictive control, etc. The development of modern control theory makes electronic control systems more adaptable to complex multi-variable systems, time-varying systems and nonlinear systems, and can even implement precise and effective control for systems with inaccurate mathematical models. This is the premise for the realization of engine electronic control. In terms of its structure, the electronic control system mainly consists of sensors, electronic control components, and actuators. As the input part, the sensor is used to measure physical signals (temperature, pressure, etc.) and convert them into electrical signals. Its function is to receive the input signal of the sensor and calculate and process it according to the set program and output the processing result. The actuator is driven according to the output electrical signal. The executing agency makes it change as required.