Method and apparatus for determining the individual manipulated variables of an internal combustion engine, and in particular of a gas turbine

• US 4,525,783 A
• Filed: 12/05/1983
• Issued: 06/25/1985
• Est. Priority Date: 09/26/1978
• Status: Expired due to Term

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Pischke, Jurgen, Nonnenmann, Wolfgang
• Primary Examiner(s): NOT, DEFINED
• Application Number:
  US06/558,556
• Time in Patent Office: 568 Days
• Field of Search: 364/431.02, 364/431.05, 364/431.11, 364/442, 364/200, 123/480, 60/39.28 R
• US Class Current: 701/114
• CPC Class Codes: F02C 9/00 Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants controlling air intakes F02C7/057; controlling turbines F01D; controlling compressors F04D27/00; controlling in general G05

Abstract

A method and an apparatus for determining the individual manipulated variables of an internal combustion engine such as a gas turbine or the like derived on the basis of given and measured operating characteristics such as rpm and temperature, including a computer having associated programs for control and data detection or data output and the various program courses take place preferably in alternation. The control program is interrupted at fixed times, and during the interruption, a special program for data detection or data output is performed. The method of the invention makes input data available continuously, which then can be called up during the normal control program course from working memories and from time to time input and output data is brought up to the most recent state. The computer includes at least two program memories, a fixed point memory for control parameters, a time control device for the interruption each time of the control program and memories, associated directly with the computer, for input and output data or signals.

Claims

1. A method for determining the individual input variables of an internal combustion engine such as a gas turbine or the like, derived from given and measured operating characteristics such as rpm and temperature in a computer having a timing control, a multiplex means for preparing at least some of said input variables, a feedback control program, a data detection program and a data output program, and an output memory having means for delivering data to indicating means and final control means for said engine, comprising the steps of

generating control data by repetitively operating said control program from beginning to end to beginning,

operating at predetermined times alternatively with said control program said data detection program and said data output program,

interrupting said control program at predetermined fixed times, wherein said timing control operates

said data detection program and said data output program when said control program is interrupted, and

feeding the output signals from said data output program in a time-controlled manner to said output memory.

2. An apparatus for determining the individual input variables of an internal combustion engine, such as a gas turbine or the like, derived from given and measures operating characteristics such as rpm and temperature, in a computer having a timing control, a multiplex means for preparing at least some of said input variables, a feedback control program, a data detection and a data output program, said programs being operated in alternation, and said computer comprising

a controller having an arithmetic unit, a program memory and a time control device;

at least one input memory means for input data, and at least one output memory means for output data,

said output memory means having means for delivering said output data to at least one of an indicating means and a final control means for said engine, and

said input memory means and said output memory means being associated with said arithmetic unit, wherein the time control device interrupts the control program at particular fixed times and said timing control switches the computer over to the data detection and data output program during which input variables are written into said at least one input memory means and output variables are read out of said at least one output memory means.

3. An apparatus in accordance with claim 2, further comprising a fixed point memory for control parameters and for the initial operating characteristics of the controlled internal combustion engine.

4. An apparatus for determining the individual input variables of an internal combustion engine, such as a gas turbine or the like, derived from given and measured operating characteristics such as rpm and temperature, in a computer having a time control device, a multiplex means for preparing at least some of said input variables, a feedback control program, a data detection and a data output program, said programs being operated in alternation, and said computer comprising

a controller having an arithmetic unit, a program memory and a time control device;

a least one input memory means for input data, and at least one output memory means for output data,

said output memory means having means for delivering said output data to at least one of an indicating means and a final control means for said engine,

said input memory means and said output memory means being associated with said arithmetic unit, wherein the time control device interrupts the control program at particular fixed times and switches the computer over to the data detection and data output program during which input variables are written into said at least one input memory means and output variables are read out of said at least one output memory means, and

a monitoring apparatus arranged to receive certain of a number of operating characteristics of the internal combustion engine, said monitoring apparatus having means for providing an output signal for controlling an emergency operation.

5. An apparatus in accordance with claim 4, further comprising a transducer associated with said monitoring apparatus for sensing said certain of a number of said operating characteristics of said gas turbine.

6. An apparatus in accordance with claim 4, wherein said monitoring apparatus is coupled with said controller for monitoring said controller.