Just One Minute, Bring You to Know Car ECU

ECU is commonly used in today’s auto and truck. And it takes demand of the functions of the engine and other parts.The ECU is a computer with a built-in preprogrammed and programmable computer chip that is the same as a home computer or laptop. The auto engine ECU  is used to operate the engine by controlling all engine functions using input sensors and output components. ECU has many different shapes and sizes. Here are some popular ECU brands used by British cars.they are BOSCH, DELCO, DELPH, EEC V1, FORD, JOHNSON, MARELLI, MELCO, MITSUBISHI, SAGEM, SIEMENS, TRIONIC

ECU require input from vehicle sensors such as crankshaft sensors and camshaft sensors to calculate information using programs already stored in ECU in programmable memory chips. The ECU program will use the input sensor information to calculate the desired output, such as the amount of fuel injected and when to energize the coil to start the engine.

Different systems on vehicles have different ECU. The different ECU used may be used for transmission, traction control or ABS, AC, body functions and lighting control, engines, airbags or any other system the vehicle may have. Some vehicles can incorporate multiple ECU into a single unit called a powertrain control module (PCM). These units can be an advantage by having more modules in one location, but it may be disadvantageous to add components that operate longer by adding longer wires.

Most newer vehicles have begun to use communication lines between the different modules on the vehicle so that they can share information without having to use redundant sensors. For example, a speed sensor on the wheel detects the wheel speed and will act as an input to an anti-lock brake module (ABS) ECU. Rather than sending many wires from one sensor to other ECU, the ABS ECU shares information on the ABS network communication lines with all ECU that use this information, such as a transmission shift, a speedometer that displays speed vehicles or a suspension system to control as needed Suspension.

Using only two data lines between ECU Sharing input sensors across the entire vehicle reduces the amount of wiring used in the vehicle. Sharing information between modules also means that they require a common language, so they can be run as a group. When a computer fails or can not share information, it may affect other modules if sensors need to be input from the faulty module.

The engine ECU in most vehicles is connected to the on-board diagnostic connector and forwards all diagnostic information on that line to all other modules or ECU. This will reduce the number of wires required and you will not need to test on every car ECU performance.