Xtool A80, Руководство пользователя, Страница: 47 / 57

A80 BT Intelligent Diagnosis System
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engine's operation is highly variable, so the calculation efficiency should
be high.
The final stage is controlled by the output voltage, which provides
sufficient power to regulate the common rail pressure operating units
(Actuator) and shut off the plunger supply. In addition, the actuator
controls engine functions (e.g. exhaust gas recirculation actuators, boost
pressure actuators, electric oil pump actuators) and other auxiliary
functions (e.g. fan relays, auxiliary heating relays, preheating relays, air
conditioning units). The final stage is protected by short circuit protection
and electrical overload. This type of fault and wire disconnection is fed
back to the microprocessor. The diagnostic function at the end of the
injector also identifies defective signal changes. In addition, some of the
output signals are transmitted to other systems of the vehicle via the
interface. Within the scope of the safety program, the ECU also monitors
the entire fuel injection system.
The ECU also contains a monitoring module. The ECU and the
monitoring module monitor each other and if a fault is found, any one of
them can be separated from the other and cut off the fuel.
（ 2 ）
Camshaft speed sensor
The camshaft controls the intake and exhaust valves, which rotate at
half the crankshaft speed. Its position determines that the piston moving