Method for controlling the speed of a torque-controlled internal combustion engine

Patent 7035729 Issued on April 25, 2006. Estimated Expiration Date:

April 10, 2024. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Idling speed control method and apparatus for an internal combustion engine
Patent #: 5495835
Issued on: 03/05/1996
Inventor: Ueda

Method and arrangement for controlling the torque of an internal combustion engine
Patent #: 5765527
Issued on: 06/16/1998
Inventor: Lehner, et al.

Method and device for controlling and internal combustion engine
Patent #: 6000376
Issued on: 12/14/1999
Inventor: Hess, et al.

Method and arrangement for operating an internal combustion engine
Patent #: 6131546
Issued on: 10/17/2000
Inventor: Vogt, et al.

Method for determining governor gains for a fuel control system Patent #: 6133643
Issued on: 10/17/2000
Inventor: Lukich, et al.

Inventors

Assignee

Magneti Marelli Powertrain S.p.A.

Application

No. 10822100 filed on 04/10/2004

US Classes:

701/110, Speed, acceleration, deceleration123/339.19, By engine speed error feedback123/339.21, And integral or derivative control123/339.11, By regulating spark ignition timing123/339.1, Idle speed control123/333, By electric means123/406.23, Engine output (e.g., torque, speed, horsepower) or fuel consumption optimization290/40A, Control in response to engine speed477/115, Transmission controlled by engine60/274Anti-pollution

Examiners

Primary: Yuen, Henry C.
Assistant: Hoang, Johnny H.

Attorney, Agent or Firm

Howrey LLP

Foreign Patent References

2790516 FR 09/01/2000
WO01/61171 WO 08/01/2001

International Class

G06G 7/70

Abstract

A method for controlling the speed of a torque-controlled internal combustion engine in which the generation of the drive torque is regulated by actuators which are controlled from a control value of the instantaneous torque and by a control value of the predicted torque, the method providing for the calculation of an objective value of the speed, the calculation of an objective value of the torque reserve, the calculation of an objective value of the potential torque on the basis of the objective value of the torque reserve, the generation of the control value of the instantaneous torque by means of a first feedback control loop which uses as input the objective value of the speed, and the generation of the control value of the predicted torque by means of a second feedback control loop which uses as input the objective value of the potential torque.