利用者:RudeBatchelor62
出典: くみこみックス
dodge - The history of petrol engines can be dated all the way to the 19th century once the first single cylinder engine was designed. This also marked the integration of the "carburetor" into the design of automotive engines. Further improvements inside the design resulted in multi cylinder petrol engines, however, the best innovation to be incorporated into petrol engine design was over in the 80's by BMW once they created a system which controlled the fuel injection, air-flow and the ignition sparks of the engine. Further refinements and iterations on this design have resulted in a system which has replaced carburetors in modern petrol engines. This computerized system is known as an Engine Control Unit and it consists of an array of sensors used to monitor various exhaust parameters.
Engine control units seen in modern cars lead to monitoring and operating every purpose of an internal combustion engine, from changing the valve timing to manipulating the amount of fuel that is injected based on a a few different parameters, the ECU is widely considered your brain of modern automobiles. The Chrysler 300m ECU is located at the rear of the engine bay, at the rear of the center of the dashboard.
jeep - The Chrysler 300m ECU is in charge of controlling the various parameters of car engines like the air/fuel mixture, the valve timing and the timing of the spark ignition. Unlike other ECUs, which may have a fixed number of engine parameters and mainly control the quantity and air and fuel that goes into the combustion chamber, the Chrysler 300m ECU is really a highly advanced control module and it is able to control a huge array of engine parameters to boost the power and efficiency from the engine. The Chrysler 300m ECU can be a sophisticated computerized device which monitors the exhaust and adjusts it according to predefined performance maps stored about the onboard chip with the ECU. The Chrysler 300m ECU communicates with the throttle position sensor and the Mass air flow sensor to ascertain the amount of air that's being sucked to the engine and adjusts the amount of fuel accordingly. This not just provides a substantial increase in power, but it also improves the economy of the vehicle. Utilizing this ECU, Chrysler provides a new technology known as cylinder deactivation which basically involves shutting off a couple of cylinders of the engine once the vehicle is cruising. This know-how not allows for huge fuel savings without sacrificing any power by opting for a smaller engine.
The chrysler 300, engine control unit is also capable of eliminating engine "knocking". Engine knock will be the phenomenon in which the petrol undergoes combustion before being ignited by the spark plugs, and therefore, knocking can cause a great deal of damage to the engine. However, if the Chrysler 300m ECU detects an imminent knocking effect, it adjusts the valve timing and delays it by a number of milliseconds in order to avoid premature combustion with the fuel. The Chrysler 300m engine control module greatly improves the power, fuel economy and efficiency of the engine and the effectiveness of the device is evident from its widespread adoption
