Electronically controlled engine generator set
First Claim
1. A method for controlling an engine to meet a power output requirement, comprising the steps of:
- a) allowing the engine to run in an unthrottled condition;
b) receiving a signal describing the power output requirement;
c) varying a gear ratio of a transmission connected between a mechanical output of the engine and a mechanical load; and
d) establishing a torque equilibrium between the load and the engine at an engine total power output level substantially equal to said power output requirement.
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Accused Products
Abstract
An apparatus for controlling the power output of an unthrottled engine has a variable gear ratio transmission connected between a mechanical load and the engine, and it has a controller for controlling the torque load on the engine, according to the power output required. The controller measures the torque output of the unthrottled engine at the power output required, and sets the gear ratio of the transmission to produce a torque load on the engine equal to the torque output of the engine. This means the unthrottled engine will reach an equilibrium with the mechanical load at the required power output. Controlling the unthrottled engine in this way involves receiving a signal describing the power output requirement, varying a gear ratio of the transmission, and establishing a torque equilibrium between the load and the engine.
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Citations
17 Claims
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1. A method for controlling an engine to meet a power output requirement, comprising the steps of:
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a) allowing the engine to run in an unthrottled condition; b) receiving a signal describing the power output requirement; c) varying a gear ratio of a transmission connected between a mechanical output of the engine and a mechanical load; and d) establishing a torque equilibrium between the load and the engine at an engine total power output level substantially equal to said power output requirement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. Apparatus for the control over the power output of an unthrottled engine, comprising
a) a transmission, connected between a mechanical load and the unthrottled engine, comprising a variable gear ratio, and b) a controller, for controlling a torque load on the engine, according to a changeable required power output, comprising i) means for determining the torque output of the unthrottled engine at the achievement of a required power output, and ii) means for setting the gear ratio of the transmission to produce a torque load on the engine substantially equal in magnitude to the torque output of the unthrottled engine at the achievement of a required power output, whereby the unthrottled engine will reach an equilibrium with the mechanical load at substantially the required power output.
Specification