U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Engine combustion control method

Patent 4455980 Issued on June 26, 1984. Estimated Expiration Date: Icon_subject September 9, 2001. 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.

Patent References

3875912

Pressure responsive engine ignition control system
Patent #: 3957023
Issued on: 05/18/1976
Inventor: Peterson

Internal combustion engine ignition system
Patent #: 4116173
Issued on: 09/26/1978
Inventor: McDougal ,   et al.

Device for optimum control of the sparking time of a spark ignition engine, during its operation
Patent #: 4120272
Issued on: 10/17/1978
Inventor: Douaud ,   et al.

Peak cylinder combustion pressure ignition spark timing system
Patent #: 4153019
Issued on: 05/08/1979
Inventor: Laubenstein ,   et al.

Method and device for automatically adjusting the spark advance of a controlled ignition engine
Patent #: 4213429
Issued on: 07/22/1980
Inventor: Douaud ,   et al.

Performance optimizing control system for an internal combustion engine
Patent #: 4242995
Issued on: 01/06/1981
Inventor: Schramm ,   et al.

Controlled-ignition I.C. engine with thermal detection system
Patent #: 4265205
Issued on: 05/05/1981
Inventor: Garcea

Method and device for automatically adjusting the spark advance of a controlled ignition engine
Patent #: 4285315
Issued on: 08/25/1981
Inventor: Douaud ,   et al.

Device for refining the adjustment of the ignition advance of a controlled-ignition internal combustion engine Patent #: 4304203
Issued on: 12/08/1981
Inventor: Garcea ,   et al.

Inventors

Assignee

Application

No. 06/300585 filed on 09/09/1981

US Classes:

123/406.23, Engine output (e.g., torque, speed, horsepower) or fuel consumption optimization123/406.29, Engine knock responsive123/406.43, Responsive to derivative, integral or average of pressure123/435Including cylinder pressure or temperature responsive means

Examiners

Primary: Cox, Ronald B.

Attorney, Agent or Firm

International Classes

F02D 41/14 (20060101)
F02D 35/02 (20060101)
F02D 41/00 (20060101)
F02D 41/26 (20060101)

Foreign Application Priority Data

1980-09-12 JP

Abstract

A sensor for detecting the internal pressure is provided in the cylinder to detect the combustion condition in the engine cylinder. In order to process the output of the sensor in accordance with the volume of the combustion chamber, the amount of change of combustion volume between timings of fetching the sensor outputs is multiplied by the sensor output, or the sensor output is fetched in accordance with the amount of change of combustion volume. In this way, the amount of work is detected from the sensor output. The ignition timing is subjected to feedback control in such a manner as to attain the maximum effective amount of work.

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