Vehicle diagnosing apparatus

• US 6,070,111 A
• Filed: 02/19/1998
• Issued: 05/30/2000
• Est. Priority Date: 04/09/1997
• Status: Expired due to Fees

• Current Assignee: Honda Giken Kogyo Kabushiki Kaisha (Honda Motor Company)
• Original Assignee: Honda Giken Kogyo Kabushiki Kaisha (Honda Motor Company)
• Inventors: Takakura, Keiji, Aiba, Hiroyuki
• Primary Examiner(s): Cuchlinski, Jr., William A.
• Assistant Examiner(s): PIPALA, EDWARD J
• Application Number:
  US09/025,839
• Time in Patent Office: 831 Days
• Field of Search: 701/29, 701/31, 701/33, 701/34, 701/35, 73/116, 73/117.2, 73/117.3
• US Class Current: 701/29
• CPC Class Codes: G01M 15/05 by combined monitoring of two or more different engine parameters

Abstract

In a vehicle diagnosing apparatus having a function of incorporating data from sensors which are disposed in a vehicle, the data from the sensors are continuously incorporated before diagnosing. The state of changes in the data are displayed as a graph. Then, the timings of incorporating the data used for diagnosing are set on the graph.

Claims

1. A vehicle diagnosing apparatus which is connected to an electronic control unit mounted on a vehicle, said apparatus diagnosing the vehicle by incorporating detected signals, via said electronic control unit, from various sensors which are disposed in the vehicle, said apparatus comprising:

means for continuously receiving said detected signals before starting the diagnosing;

means, operably coupled to said continuously receiving means, for displaying a state of changes in the detected signals as a graph; and

means, operably coupled to said displaying means, for receiving and for setting, on said displayed graph, timings of incorporating the detected signals used for diagnosing.

2. A vehicle diagnosing apparatus for diagnosing a vehicle comprising:

means for incorporating detected signals from a first sensor for detecting an operation amount of an operating portion of the vehicle and from a second sensor for detecting an amount of change in state of an operated portion, said state of said operated portion being changed by an operation of said operating portion; and

means, operably coupled to said incorporating means, for diagnosing an interlocking relationship between said operating portion and said operated portion, said diagnosing being made from the detected signal of one of said first and second sensors at a point of time when the detected signal of the other of said first and second sensors satisfies a predetermined condition, said point of time being set in said diagnosing means.