Control of A/C compressor
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Control of A/C compressor
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A/C compressor activation is controlled by functions in both DICE and PSG 16. The following description covers that which applies to functions in PSG 16.
The A/C compressor control function comprises two sub-functions
Logic function
The logic function determines whether the A/C compressor should be turned off. This is done to enable turning off the A/C compressor under certain circumstances when the engine's maximum torque must be made available.
The A/C compressor will be turned off under the following conditions
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Coolant temperature higher than 123°C (253°F)
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Pedal sensor value greater than 95% and engine speed < 2500 rpm while driving in first gear
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Control function
The control function governs the engagement and disengagement of the A/C relay after a command from the logic function.
After the power stage has amplified the signal, pin K30 will be grounded and the A/C relay will energize the A/C compressor electromagnetic clutch.
