4921776 Cummins Electronic Module for Engine QSB6.7 QSB4.5

4921776 Cummins Electronic Module for Engine QSB6.7 QSB4.5

Manufacturer number: 4921776

Country/Region of Manufacture: USA

Function: To use data acquisition and exchange of various sensors and buses to judge the vehicle status and the owner’s intention and control the vehicle through the actuator.

Composition: It is composed of microprocessor, memory, output/input interface, analog-to-digital converter, shaping, driving and large-scale integrated circuit.

Working principle: When the engine is running, ecu collects signals from various sensors, compares and calculates them, and converts the results of comparison and calculation into control signals to control ignition, air fuel ratio, idle speed, exhaust gas re-circulation and other parameters of the engine.

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The engine control unit (ECU) is the central controller and heart of the engine management system. It controls the fuel supply, air management, fuel injection and ignition. Due to the scalability of its performance, the control unit is also able to control the exhaust system as well as to integrate transmission and vehicle functions. The ECU manages all types of power train and topologies such as Gasoline, Diesel, CNG, Ethanol and also Hybrid and Fuel Cell system.