Method for adaptively engaging a clutch for a motor
AssigneeChrysler Corporation
InventorsRoland Richardson, Howard W. Krausman
Life of this patent
Estimating the term…
Abstract
A method for controlling a clutch for an air conditioner compressor having an armature and a rotor separated by an air gap width powered by an internal combustion engine having a crankshaft includes the steps of receiving a signal to engage the clutch, moving the armature to the rotor over a predetermined time to reduce the air gap width to zero, measuring rotational acceleration of the crankshaft of the internal combustion engine, and changing the predetermined time to reduce the air gap width to zero such that subsequent movement of the armature reduces the changes in the rotational acceleration of the crankshaft.
Claims8
A method for controlling a clutch of load receiving power from a power source, the clutch having a rotor and an armature separated by an air gap width, the method comprising the steps of:
- receiving a signal to engage the clutch;
- moving the armature to the rotor over a predetermined time to reduce the air gap width to zero;
- measuring a change in rotational acceleration in the power source;
- and
- changing the predetermined time such that the chance in rotational acceleration in the power source is reduced.
A method for controlling a clutch for an air conditioning compressor receiving power from an internal combustion engine having a crankshaft, the clutch including an armature and a rotor separated by an air gap width, the method comprising the steps of:
- receiving a signal to engage the clutch;
- moving the armature to the rotor over a predetermined time to reduce the air gap width to zero;
- measuring rotational acceleration of the crankshaft of the internal combustion engine;
- and
- changing the predetermined time the armature abuts the rotor such that subsequent movement of the armature reduces the changes in the rotational acceleration of the crankshaft.
A method for controlling a clutch for an air conditioning compressor receiving power from an internal combustion engine having a crankshaft, a clutch including an armature and a rotor separated by an air gap width, the method comprising the steps of:
- receiving the signal to engage the clutch;
- moving the armature to the rotor over a predetermined time to reduce the air gap width to zero;
- measuring the rotational acceleration of the crankshaft of the internal combustion engine;
- comparing the rotational acceleration to a low threshold;
- reducing the predetermined time the armature abuts the rotor when the rotational acceleration exceeds the low threshold;
- comparing the rotational acceleration of the crankshaft to a second high threshold;
- and
- increasing the predetermined time the armature abuts the rotor when the rotational acceleration does not exceed the second high threshold.
Dependencies are inferred from the claim text.