US5638272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control unit for vehicle and total control system therefor
Assignee: Hitachi Ltd
•
Filing: 1995-11-06
•
Granted: 1997-06-10
•
Expires: 2015-11-06
Abstract
Abstract A vehicle control unit comprises an interface software memory for storing an interface software program for connecting an application software program with an operating system in an internal ROM, a central processing unit for performing computation of the application software program and the interface software program, an erasable memory for storing data such as the result of computation, an I/O unit for extending the control unit, and extending means for communicating memory data through a bus or a LAN. A single-chip micro-computer is used in vehicle control.
Inventors
- 👤 Toshimichi Minowa
- 👤 Yoshiyuki Yoshida
- 👤 Junichi Ishii
- 👤 Shigeki Morinaga
- 👤 Hiroshi Katayama
- 👤 Mitsuo Kayano
- 👤 Kenichiro Kurata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:16
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/24; F02D41/26; F01; F01N; F01N11/00; F01N11/007; F02D37/00; F02D37/02; F02D41/263; F02D41/266; G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/042; G05B19/0423; G06; G06F; G06F8/00; G06F8/60; G06F8/65; B; B60; B60W; B60W50/00; B60W2050/0001; B60W2050/0002; B60W2050/0004; B60W2050/0005; F01N2550/00; F01N2550/02; F01N2900/00; F01N2900/04; F01N2900/0422; F02D41/28; F02D2041/281; F02D2041/285; F02D2200/00; F02D2200/02; F02D2200/04; F02D2200/0404; F02D2200/0406; F02D2200/50; F02D2200/501; F02D41/02; F02D41/14; F02D41/1438; F02D41/1444; F02D41/1454; F02D41/18; F02D41/187; G05B2219/00; G05B2219/20; G05B2219/21; G05B2219/21015; G05B2219/21021; G05B2219/21127; G05B2219/21137; G05B2219/21138; G05B2219/23; G05B2219/23277; G05B2219/23371; G05B2219/24; G05B2219/24125; G05B2219/25; G05B2219/25243; G05B2219/25301; G05B2219/25341; G05B2219/25435; G05B2219/25451; G05B2219/26; G05B2219/2637; G06F12/00; G06F12/02; G06F12/08; G06F12/0802; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/40
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
79 words
A control unit for controlling a vehicle having a one-chip microcomputer including a central processing unit, an internal read-only-memory and interface means for exchanging data with an external data base; and an external memory for data extension; wherein said internal ROM stores at least an operating system and an interface software which connects said operating system and an application software, a portion of which is stored internally, and a remaining portion of which is stored in said external memory.
Claim 2
Dependent Claim
79 words
A control unit for controlling a vehicle having a one-chip microcomputer including a central processing unit, an internal read-only-memory and interface means for exchanging data with an external data base; and an external memory for data extension; wherein said internal ROM stores at least an operating system and an interface software which connects said operating system and an application software, a portion of which is stored internally, and a remaining portion of which is stored in said external memory.
Claim 3
Dependent Claim
62 words
A control unit for controlling a vehicle according to claim 1, wherein said interface software permits outputting of a control value which is determined independently of product specifications of any of a plurality of hardware units of said vehicle which are replaceable, said control value including an engine speed determined independently of a number of teeth of an engine speed sensing gear.
Claim 4
Dependent Claim
21 words
A control unit for controlling a vehicle according to claim 2, wherein said control value is described in said product specification.
Claim 5
Dependent Claim
38 words
A control unit for controlling a vehicle according to claim 1, wherein said interface software program in said internal memory unit further includes a digital filter program for executing a filter processing of data subjected to A/D conversion.
Claim 6
Dependent Claim
70 words
A control unit for controlling a vehicle having a one-chip microcomputer including a central processing unit, an internal read-only-memory and an interface means for exchanging data with an external data base; an external memory for data extension; and communication means for data exchange; wherein said internal ROM stores at least an operating system and an interface software which connects said operating system and an application software which is stored externally.
Claim 7
Dependent Claim
70 words
A control unit for controlling a vehicle having a one-chip microcomputer including a central processing unit, an internal read-only-memory and an interface means for exchanging data with an external data base; an external memory for data extension; and communication means for data exchange; wherein said internal ROM stores at least an operating system and an interface software which connects said operating system and an application software which is stored externally.
Claim 8
Dependent Claim
31 words
A vehicle control system integrating at least two units of the control unit according to claim 5, wherein said communication means perform data exchange between the at least two units thereof.
References Cited (Backward Citations)
US4751633A
Cited
US4750123A
Cited
US5367456A
Cited
US5280431A
Cited
US4748843A
Cited
US5163001A
Cited
US5189617A
Cited
US5187666A
Cited
US5170352A
Cited
US5367665A
Cited
US5311430A
Cited
US5515382A
Cited
US5490064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-06-09 | 2000-12-09 | 2001-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-06-09 | 2004-12-09 | 2005-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-06-09 | 2008-12-09 | 2009-06-10 | $7700.00 | Window Closed / Lapsed |