U.S. patents available from 1976 to present.
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Circuit and method for interfacing vehicle controller and diagnostic test instrument

Patent 5555498 Issued on September 10, 1996. Estimated Expiration Date: Icon_subject March 18, 2014. 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

Re31582

Apparatus and method for calibrated testing of a vehicle electrical system
Patent #: 4207611
Issued on: 06/10/1980
Inventor: Gordon

Tester for electronic engine control systems
Patent #: 4234921
Issued on: 11/18/1980
Inventor: Kinoshita ,   et al.

Engine analyzer
Patent #: 4375672
Issued on: 03/01/1983
Inventor: Kato ,   et al.

Diagnostic data recorder
Patent #: 4602127
Issued on: 07/22/1986
Inventor: Neely ,   et al.

Apparatus for testing auto electronics systems
Patent #: 4694408
Issued on: 09/15/1987
Inventor: Zaleski

Serial data bus for intermodule data communications
Patent #: 4706082
Issued on: 11/10/1987
Inventor: Miesterfeld ,   et al.

Method of data arbitration and collision detection in a data bus
Patent #: 4719458
Issued on: 01/12/1988
Inventor: Miesterfeld ,   et al.

Serial data bus for serial communication interface (SCI), serial peripheral interface (SPI) and buffered SPI modes of operation
Patent #: 4739323
Issued on: 04/19/1988
Inventor: Miesterfeld ,   et al.

Method for serial peripheral interface (SPI) in a serial data bus
Patent #: 4739324
Issued on: 04/19/1988
Inventor: Miesterfeld ,   et al.

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Inventors

Assignee

Application

No. 210673 filed on 03/18/1994

US Classes:

701/33, Plural processors or external processor710/105Protocol

Examiners

Primary: Park, Collin W.

Attorney, Agent or Firm

International Class

G06F 013/00

Abstract

An adapter which permits the use of present diagnostic tools with newer ISO9141 equipped engine and transmission controllers. The adapter facilitates bi-directional communication while conditioning the signals entering and exiting the adapter and allow the diagnostic tools to operate transparent of the adapter's presence.

Other References

  • Resolution #93-40, State of California Air Resources Board, Amendments to Regulations Regarding On-Board Diagnostic System Requirements for 1994 and Later Passenger Cars, Light-Duty Trucks, and Medium-Duty Vehicles and Engines (OBD II), Jul. 1993
  • ISO9141-2, International Standard, Road Vehicles-Diagnostic systems-Part 2: CARB requirements for interchange of digital information. No date
  • 890529, The All-Adaptive Controls for the Chrysler Ultra Drive Transaxle, Maurice B. Leising, Howard Benford and Gerald L. Holbrook, Chrysler Motors Corp. Mar. 21, 1994
  • Enrironmental Protection Agency, Feb. 19, 1993, 40 CFR Part 88 Control of Air Pollution From New Motor Vehicles; Final Rule, Federal Register, vol. 58, No. 32, pp. 9468-9488
  • SAE Technical Paper Series, No. 860389, "Chrysler Collision Detection (C2 D)-A Revolutionary Vehicle Network", Frederick O. R. Miesterfeld, Feb. 24-28, 1986
  • Chrysler 1983-1988 Instruction Manual, entire book, System 2000 Diagnostics, Feb. 1988
  • 3-in-1 Instruction Manual Monitor 4000E, Apr. 1990, entire book
  • SAE Standard J1850, Class B Data Communication Network Interface, Mar. 9, 199
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