Automotive CAN bus simulation development tool Chengdu Panfeng Technology

Engine Electronic Control System Automotive electronic technology continues to develop. In terms of engine electronic control systems, there is even more room for development. The engine knock control system is referred to as the engine knock control system. One of the effective ways for a gasoline engine to obtain maximum power and optimal fuel economy is to increase the ignition advance angle, but too large an ignition advance angle will cause engine knocking. This is more likely especially when the engine is working under heavy load.
Chengdu Panfeng Technology will take a look at the relevant knowledge of the engine electronic control system. The most effective way to eliminate knocking is to delay the ignition advance angle. Practice has proved that severe knocking will seriously deteriorate the engine's power and economy. When the engine works at the critical point of knocking or has slight knock, the engine has the highest thermal efficiency and the best power and economy. The engine knock control system can effectively control the ignition advance angle, so that the engine works in the critical state of knocking. The exhaust gas recirculation control system is referred to as R. According to the engine speed, load (throttle opening), temperature, intake air flow, and exhaust temperature, the solenoid valve is controlled to open in a timely manner. The vacuum in the intake pipe enters the R valve vacuum membrane chamber through the solenoid valve, and the diaphragm pull rod opens the R valve. , a small part of the exhaust gas enters the intake system through the R valve, mixes with the mixture, and enters the cylinder to participate in combustion. A small part of the exhaust gas enters the cylinder to participate in the combustion of the mixture, which reduces the temperature in the cylinder during combustion. Because it is generated under high-temperature and oxygen-rich conditions, the generation of exhaust gas is suppressed, thereby reducing the exhaust gas content.
However, excessive exhaust gas participation in recirculation will affect the ignition and performance of the mixture, thereby affecting the power of the engine. Especially when the engine is idling, low speed, small load and cold engine, the recirculated exhaust gas will be obvious. significantly affect engine performance. Therefore, when the engine is at idle, low speed, small load and cold, the exhaust gas is controlled not to participate in recirculation to avoid engine performance being affected. When the engine exceeds a certain speed, load and reaches a certain temperature, a small part of the exhaust gas is controlled to participate. Recirculation, and the amount of exhaust gas participating in recirculation varies according to engine speed, load, temperature and exhaust gas temperature, in order to achieve the lowest level in the exhaust gas.