Display apparatus for vehicle

• US 5,121,112 A
• Filed: 12/26/1989
• Issued: 06/09/1992
• Est. Priority Date: 12/29/1988
• Status: Expired due to Fees

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Nakadozono, Hiroshi
• Primary Examiner(s): Yusko, Donald J.
• Assistant Examiner(s): ZIMMERMAN, BRIAN A
• Application Number:
  US07/456,695
• Time in Patent Office: 896 Days
• Field of Search: 340/715, 340/870.16, 340/459, 307/10.1
• US Class Current: 340/870.16
• CPC Class Codes: B60L 3/12 Recording operating variables ; Monitoring of operating variables
• CPC Class Codes: B60R 16/0232 for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
• CPC Class Codes: G07C 5/0816 Indicating performance data, e.g. occurrence of a malfunction
• CPC Class Codes: G08G 1/0962 having an indicator mounted inside the vehicle, e.g. giving voice messages
• CPC Class Codes: G09G 3/04 for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions

Abstract

A display system for a vehicle includes a plurality of sensors, a priority determining module, a display control module, and display unit having two display segments. The sensors detect various vehicular conditions to provide signals to the priority determining module. Each signal is assigned a degree of priority of high or low level. On input of signals to the priority determining module, determination is made as to whether the received signals are high or low level. If the received signal is high level, information indicated by the received signal is displayed on both segments of the display unit, while if it is low level, indications on one of the display segments is interrupted and information indicated by the received low level signal is display on the interrupted display segment.

Claims

1. A display apparatus for a vehicle comprising:

detecting means for detecting and providing signals indicative of first and second trip information;

monitoring means, including a plurality of sensors each of which is adapted for sensing a different vehicular alarm condition, each sensor being pre-assigned high priority or low priority to respectfully provide a first signal having a high level or a second signal having a low level, for monitoring vehicular conditions to detect said first signal indicative of a first alarm condition and said second signal indicative of a second alarm condition,;

display means comprising a first display and a second display for displaying said first and said second trip information in a first display mode, said first alarm condition in a second display mode, and said second alarm condition in a third display mode; and

controlling means for controlling said display means to select between said first, second, and third display modes, wherein said first display mode displays said first and said second trip information on said first and said second displays in response to the signals from said detecting means, said second display mode interrupts said first and second trip information on said first and second displays and displays said first alarm condition on said first and second displays in response to said first signal from one of said sensors which have been assigned high-priority, said third display mode interrupts only said first trip information on said first display and displays said second alarm condition in response to said second signal from one of said sensors which have been assigned low-priority on said first display.

2. A display apparatus as set forth in claim 1, wherein said detecting means comprises a trip meter, said first and said second trip information each indicating a trip distance from a last resetting of said trip meter.

3. A display apparatus as set forth in claim 2, wherein said trip meter includes first, second, and third operation modes, said first operation mode resetting said first trip information, said second operation mode resetting said second trip information, and said third operation mode changing the display of the detected alarm condition on said first display to said second display so that said first trip information is displayed on said first display again.

4. A display apparatus as set forth in claim 1, wherein said controlling means controls said display means to display detected alarm condition information in sequence at given intervals when said plurality of sensors output first or second signals simultaneously.

5. A display apparatus as set forth in claim 1, wherein said monitoring means is operable to determine malfunction of actuators associated with an automatic transmission based on a pulse train, which has a predetermined duty factor corresponding to each actuator, output from an automatic transmission controller, said controlling means interrupting said first and said second displays in the event of actuator malfunction to display a predetermined number assigned to the malfunctioning actuator(s), all actuators having respective predetermined numbers assigned thereto.

6. A display apparatus for a vehicle comprising:

first monitoring means for monitoring and providing signals indicative of first and second trip data;

second monitoring means, including a plurality of sensors each of which is adapted for sensing a different vehicular alarm condition, each sensor being pre-assigned high priority or low priority to respectfully provide a first alarm signal having a high level or a second alarm signal having a low level, for monitoring vehicular information to detect said first alarm signal indicative of first alarm condition and to detect said second alarm signal indicative of second alarm condition; and

a display unit having first and second display sections and control means for controlling the display of said first and said second display sections,

wherein said display unit being responsive to the signal from said first monitoring means to provide the first and the second trip data on the first and the second display sections respectively, said display unit being responsive to the second alarm signal from one of said sensors which have been assigned low-priority to interrupt the first trip data displayed on the first display section and displaying the first alarm data thereon without interrupting the second trip data displayed on the second display section, and being responsive to the first alarm signal from one of said sensors which have been assigned low-priority to interrupt the first and second trip data displayed on the first and the second display sections and displaying the second alarm data on the first and the second display sections.

7. A display apparatus as set forth in claim 6, wherein said first monitoring means comprises a trip meter, said first and said second trip data each indicating a trip distance from a last resetting of said trip meter.

8. A display apparatus as set forth in claim 7, wherein said trip meter includes first, second, and third operation modes, said first operation mode resetting said first trip data, said second operation mode resetting said second trip data, and said third operation mode changing the display of the detected alarm condition on said first display section to said second display section for displaying said first trip data on said first display.

9. A display apparatus as set forth in claim 6, wherein said control means controls said first and said second display sections to display the detected alarm condition in sequence at given intervals when said plurality of sensors outputs said vehicular alarm condition signals simultaneously.

10. A display apparatus as set forth in claim 6, wherein said second monitoring means is operable to determine malfunction of actuators associated with an automatic transmission based on a pulse train, which has a predetermined duty factor corresponding to each actuator, which is output from an automatic transmission controller, wherein a predetermined identity number is assigned to each actuator, said control means interrupting said first and said second display sections in the event of actuator malfunctioning and displaying the predetermined identity number of all malfunctioning actuators.