Collaboration between the power steering pressure switch and the injection system control unit
The injection system control unit receives information from the power steering pressure switch, which depends on the pressure in the system hydraulic circuit. The higher the pressure, the more the energy consumption of the power steering pump increases.
To compensate for the increase in energy consumption, the injection system control unit increases the opening degree of the idle air control solenoid valve, maintaining the engine speed at 850 min-1
Idle speed correction depending on battery voltage
This correction is designed to compensate for the voltage drop when a large number of consumers are turned on. when the battery is charged slightly. To do this, the engine idle speed increases, which causes an increase in the generator rotor speed, which, in turn, increases the charging current. The greater the voltage drop. the more significant the correction. Correction begins when the voltage decreases below 12.7 V. Correction begins by maintaining the minimum engine idle speed and can increase the speed to a maximum of 910 min-1.
Correction of idle speed depending on the condition of the air conditioning system
When the air conditioner is turned on, the idle speed of the crankshaft increases to 900 min-1.