US5235696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for controlling an internal combustion engine including a step of storing addresses of control programs in a separate storage
Assignee: Siemens AG
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Filing: 1991-03-07
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Granted: 1993-08-10
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Expires: 2011-03-07
Abstract
Abstract A control method for an internal combustion engine includes storing at least one address of at least one address distributor of a variable external memory as memory contents of an address block of the variable external memory. Addresses of data are stored in at least one data block of the variable external memory associated with the at least one address distributor as memory contents of the at least one address distributor. An operating program and an initializing program are stored in a read-only memory of a microcomputer. All of the address distributors are read out from the external memory and stored in a working memory of the microcomputer at addresses determined by the operating program, through the use of the initializing program with the aid of the address block at the start of the control method. The data in each of the at least one data block are accessed through the associated address distributors stored in the working memory, through the use of the operating program.
Inventors
- 👤 Helmut Schaff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:33
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/24; F02D41/26; F02D41/263; F02D41/2406; F02D41/2409
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
157 words
A control method for an internal combustion engine, which comprises: storing at least one address of at least one address distributor in an address block of a variable external memory; associating an address distributor with at least one data block such that the memory contents of the address distributor are addresses of data in the associated data block; storing the at least one data block in the variable external memory; storing an operating program and an initializing program in a read-only memory of a microcomputer; reading out, with the initializing program and aided by the address block, all of the address distributors from the external memory and storing them in a working memory of the microcomputer at addresses determined by the operating program, at the start of the control method; and accessing, with the operating program, the data in each of the at least one data block through the associated address distributors stored in the working memory.
Claim 2
Dependent Claim
157 words
A control method for an internal combustion engine, which comprises: storing at least one address of at least one address distributor in an address block of a variable external memory; associating an address distributor with at least one data block such that the memory contents of the address distributor are addresses of data in the associated data block; storing the at least one data block in the variable external memory; storing an operating program and an initializing program in a read-only memory of a microcomputer; reading out, with the initializing program and aided by the address block, all of the address distributors from the external memory and storing them in a working memory of the microcomputer at addresses determined by the operating program, at the start of the control method; and accessing, with the operating program, the data in each of the at least one data block through the associated address distributors stored in the working memory.
Claim 3
Dependent Claim
173 words
A control method for an internal combustion engine including a microcomputer having a read-only memory and a working memory, and a variable external memory having an address block, at least one address distributor, and at least one data block associated with the at least one address distributor, which comprises: storing at least one address of the at least one address distributor as an address block in the external memory; storing addresses of data in the at least one data block associated with the at least one address distributor in the external memory; storing an operating program and an initializing program in the read-only memory; reading out, with the initializing program and aided by the address block, all of the address distributors from the external memory and storing them in the working memory at addresses determined by the operating program, at the start of the control method; and accessing, with the operating program, the data in each of the at least one data block through the associated address distributors stored in the working memory.
Claim 4
Dependent Claim
173 words
A control method for an internal combustion engine including a microcomputer having a read-only memory and a working memory, and a variable external memory having an address block, at least one address distributor, and at least one data block associated with the at least one address distributor, which comprises: storing at least one address of the at least one address distributor as an address block in the external memory; storing addresses of data in the at least one data block associated with the at least one address distributor in the external memory; storing an operating program and an initializing program in the read-only memory; reading out, with the initializing program and aided by the address block, all of the address distributors from the external memory and storing them in the working memory at addresses determined by the operating program, at the start of the control method; and accessing, with the operating program, the data in each of the at least one data block through the associated address distributors stored in the working memory.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-08-09 | 1997-02-08 | 1997-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-09 | 2001-02-08 | 2001-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-09 | 2005-02-08 | 2005-08-10 | $7700.00 | Window Closed / Lapsed |