|
|
ELECTRONIC CONTROL UNIT The ECU is located on the left of engine firewall. The ECU handles various signals from the The hard wares in the ECU are as follows: -16 bit CPU single chip - 8KB RAM (2KB IRAM + 6KB ERAM) - 2MB FLASH EPROM (12V programming voltage) - 2KB SERIAL EEPROM - 16 CHANNELS 10 MODULES/NO. (A/D) CONVERTER - 4PWM OUTPUT - CAN MODULE (CAN2.0B)
The ECU software structure is divided into two parts for data processing: -The “Application” part obtained the measurement of engineering parameter through sensors to calculate the control parameters of the fuel injectors, ignition coils and idling speed step -The “Basic” part is collecting the data from the sensors and converts it into engineering data. After that it controls the actuator through the calculated parameter generated by the
The operating system is capable of ensuring the accurate management of the matters related
The following data are transmitted into the ECU: - Battery voltage - Absolute pressure sensor in the air intake manifold - Top dead center - Throttle valve opening angle position - Air intake temperature |