How Does a Car Electronic Control Unit Function?
Listed below are some of the key areas that make up a car’s electronic control unit. These parts handle fueling strategy, power management, and communication lines between the modules. You can also learn about the Engine control loop and how it functions. However, to truly understand how the ECU works, you need to have an in- depth understanding of each. Before we continue, let’s look at how the electronic computer actually works.
The ECU controls the amount of fuel injected in the engine. When the engine is running at part throttle, the ECU concentrates on the optimum mixture. In this condition, the mixture is stoichiometric. Lambda is equal to 1.0, and the ideal mixture has all of its components consumed. If the mixture is lean, then the ECU will have to inject more fuel to keep the engine running at full throttle.
The ECU also determines how much fuel is injected, and the duration during which the air and fuel mixture is delivered to the engine. It also controls many important systems in a car. It can identify a car’s keys, adjust the performance of its engine cooling fan, and turn on the car’s alarm when something is amiss. Besides, it manages the starting process and the injection of fuel, and regulates the cooling process.
Communication lines between modules
Cars have electronic control units that can communicate with one another using a wireless communication system. The system may include a second wireless communication system that is integrated into the interior circuitry of a car. Using the other wireless communication system, the ECU 110 can communicate with another electronic device 104 that is within a second proximity range. This communication may be short-range, medium-range, or long-range wireless.
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