Adaptive vehicle display

• US 5,880,710 A
• Filed: 12/03/1993
• Issued: 03/09/1999
• Est. Priority Date: 09/07/1990
• Status: Expired due to Term

• Current Assignee: Caterpillar Incorporated
• Original Assignee: Caterpillar Incorporated
• Inventors: Jaberi, Sam H., Hadank, J. Martin
• Primary Examiner(s): Liang, Regina
• Application Number:
  US08/162,820
• Time in Patent Office: 1,922 Days
• Field of Search: 345/35, 345/39, 345/40, 345/117, 345/112, 345/214, 340/459, 340/461, 340/519, 340/517, 340/521, 340/462, 340/525, 340/518, 340/520, 364/141, 364/140, 364/188
• US Class Current: 345/618
• CPC Class Codes: B60K 35/00 Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
• CPC Class Codes: B60K 35/213 Virtual instruments
• CPC Class Codes: G07C 5/0816 Indicating performance data, e.g. occurrence of a malfunction

Abstract

In the field of engine-powered vehicles is desirable to monitor vehicle operating parameters and provide a vehicle operator with an indication when the monitored parameters enter undesirable operating conditions. It is further desirable in many instances to provide a visual indication of the relative magnitude of the sensed parameter which is in an undesirable operating condition. The subject invention provides an apparatus for monitoring the operating condition of a vehicle of the type having a plurality of sensor devices for sensing separate vehicle parameters and producing respective parameter signals responsive to the sensed parameters. The apparatus includes a processor means for receiving the parameters signals, processing each of the parameter signals to determine if the associated sensed parameter is in an undesirable operating condition, and producing respective display control signals in response to the parameter signals indicating undesirable operating conditions for the sensed parameters, respectively. The apparatus further includes a display device for receiving the display control signals and sequentially providing a visual indication of the magnitude of each sensed parameter which is in an undesirable operating condition in response to the display control signals.

Claims

1. An apparatus for monitoring a plurality of different parameters related to the operating condition of an engine powered device, comprising:

a plurality of sensors each sensing a different one of the plurality of operating parameters of the engine powered device and each producing a parameter signal representative of the parameter being sensed;

processor means for receiving said parameter signals, processing each of said parameter signals and determining which ones of the parameter signals are at an undesirable operating condition, classifying each parameter signal having an undesirable operating condition into one of a preselected number of warning levels with respect to the severity of said undesirable operating condition, selecting those classified parameter signals being at the highest warning level, and producing a sequence of individual display control signals at spaced time intervals of those parameter signals having the highest warning level, each display control signal of the sequence of display control signals being related to a particular one of only the classified parameters having the highest warning level; and

a first display having a plurality of selectively energizable segments arranged in a preselected pattern and being connected to said processor means, said first display receiving said sequence of display control signals and energizing a selected one of said plurality of segments corresponding to the individual display signal being received at that time in the sequence and visually indicating the magnitude of the individual sensed parameter.

2. An apparatus, as set forth in claim 1, wherein said plurality of selectively energizable segments are radially oriented.

3. The apparatus, set forth in claim 2, wherein said first display including means for providing a visual indication of an upper and a lower limit of the sensed parameter being shown on said first display.

4. The apparatus set forth in claim 3 wherein said display means further includes:

a second display adapted to simultaneously provide a textual message associated with the parameter displayed on said first display.

5. The apparatus, set forth in claim 2, wherein said energizable segments being a liquid crystal display.

6. The apparatus, set forth in claim 5, wherein said energizable segments being arranged to form a bar graph.

7. The apparatus, set forth in claim 5, wherein said energizable segments being arranged to form a dial indicator.

8. An apparatus, as set forth in claim 2, said display means further including a second display adapted to indicate the parameter being currently displayed on said first display and the action to be taken with respect to the parameter being displayed on the first display.

9. A method for monitoring the operating condition of a vehicle of the type having a plurality of sensor means for sensing different vehicle parameters and producing respective parameter signals responsive to said different sensed parameters, comprising the steps of:

processing each of said parameter signals and determining which ones of the associated sensed parameters is at an undesirable operating condition;

classifying each of said parameters at an undesirable operating condition into one of a preselected number of hierarchical warning levels in accordance with the severity of said respective undesirable operating condition;

determining the highest warning level of the classified parameters;

producing a sequence of individual display control signals corresponding to those parameter signals having the highest warning levels, each individual display control signal of said sequence of display control signals being produced at a different time during said sequence; and

providing sequentially on a first display a visual indication of the relative magnitude of the sensed parameters being at the highest current warning level in response to receiving said sequence of individual display control signals, only the magnitude of one sensed parameter of a plurality of sensed parameters at the highest current warning level being displayed at a time.