Engine motion active control
First Claim
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1. An engine active motion control system for controlling engine dynamic torque, comprising:
- an engine that generates a first dynamic torque; and
a first module that selectively initiates generation of a second dynamic torque about an axis of rotation of a crankshaft of said engine in a direction opposite that of said first dynamic torque generated through said crankshaft, wherein said torque is generated when an engine speed is greater than a first engine speed threshold and is less than a second engine speed threshold.
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Abstract
An engine active motion control system for controlling engine dynamic torque includes an engine that generates a first dynamic torque. A first module selectively initiates generation of a second dynamic torque about an axis of rotation of a crankshaft of the engine in a direction opposite that of the first dynamic torque generated through the crankshaft.
34 Citations
16 Claims
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1. An engine active motion control system for controlling engine dynamic torque, comprising:
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an engine that generates a first dynamic torque; and a first module that selectively initiates generation of a second dynamic torque about an axis of rotation of a crankshaft of said engine in a direction opposite that of said first dynamic torque generated through said crankshaft, wherein said torque is generated when an engine speed is greater than a first engine speed threshold and is less than a second engine speed threshold. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for controlling engine operation during activated and deactivated modes in a displacement on demand engine, comprising:
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transitioning said engine to said deactivated mode; and selectively generating a torque about an axis of rotation of a crankshaft of said engine in a direction opposite that of a drive torque generated through said crankshaft, wherein said torque is generated when an engine speed is greater than a first engine speed threshold and is less than a second engine speed threshold. - View Dependent Claims (8, 9, 10, 11)
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12. A method of reducing engine vibration during a deactivated mode of a displacement on demand engine, comprising:
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determining whether to transition said engine to said deactivated mode; monitoring an engine speed; and activating an active mass absorber (AMA) based on said engine speed to generate a torque about an axis of rotation of a crankshaft of said engine in a direction opposite that of a drive torque generated through said crankshaft, wherein said torque is generated when said engine speed is greater than a first engine speed threshold and is less than a second engine speed threshold. - View Dependent Claims (13, 14, 15, 16)
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Specification