Road information displaying method

• US 5,436,623 A
• Filed: 11/22/1993
• Issued: 07/25/1995
• Est. Priority Date: 10/02/1991
• Status: Expired due to Fees

• Current Assignee: Stanley Electric Company Limited
• Original Assignee: Stanley Electric Company Limited
• Inventors: Terada, Toshiyuki, Tanabe, Toru
• Primary Examiner(s): Swarthout, Brent
• Application Number:
  US08/155,106
• Time in Patent Office: 610 Days
• Field of Search: 340/905, 340/988, 340/995, 340/990, 364/449, 73/178 R
• US Class Current: 340/995.27
• CPC Class Codes: G01C 21/3626 Details of the output of route guidance instructions traffic control systems for road vehicles involving transmission of navigation instructions to the vehicle G08G1/0968
• CPC Class Codes: G08G 1/0969 having a display in the form of a map

Abstract

A road information displaying method characterized in that detailed information can be obtained on an auxiliary indicator 1 without changing the scale of a main indicator 21 by setting a small auxiliary indicator 1 in an instrument panel 10 in addition to a main indicator 21 of a center console 20 and using a road information display method for displaying details of road information corresponding to the display of the main indicator 21 on the auxiliary indicator 1. Thus, operation is simplified because it is unnecessary to change the scale of the area being displayed and change of the direction of the driver'"'"'s line of sight during driving is decreased because the auxiliary indicator 1 is set in the instrument panel 10, and safety is improved.

Claims

1. A road information displaying method using a main indicator located at a position displaced from a driver'"'"'s line of sight when viewing a road ahead for displaying large-scale road information which changes responsive to vehicular travel, wherein a small auxiliary indicator is set in an instrument panel of a vehicle substantially closer to said line of sight and limited details of road information which correspond to the changing information displayed by the main indicator are displayed on the auxiliary indicator in a simplified fashion as compared with the more detailed information displayed on the main indicator;

said main indicator displaying a map having a large scale to thereby display a wide area being traveled;

said small auxiliary indicator displaying auxiliary map information including a graphical representation of an intersection representative of a portion of the map displayed by the main display unit;

wherein said auxiliary map information comprises graphics showing a shape of an intersection and a symbol indicating the desired direction of travel at the intersection.

2. A road information displaying method according to claim 1, wherein the auxiliary indicator normally operates as a display element of the instrument panel and road information is generated and displayed responsive to a switching of display information to generate and display information relating to distance travelled, distance to a destination or data relating to the vehicle when in a first switching state and for generating and displaying data relating to a vehicle action to be taken by a vehicle operator or to a significant landmark or street when in a second switching state.

3. A road information displaying method according to claim 1, wherein the auxiliary indicator changes display color of a generated display responsive to occurrence of given road information.

8. A method according to claim 3 wherein, a color change of the generated display occurs responsive to the vehicle being equal to or less than a predetermined distance from predetermined displayed landmarks.

9. A road information displaying method according to claim 2 wherein different generated displays are displayed in a common display region at different time intervals thereby reducing the required display area.

4. A road information display system for use in an automobile and incorporating an instrument panel positioned to minimize the deviation in an operator'"'"'s eye movement to respectively view a road ahead and view the instrument panel, said system further comprising:

main display means a spaced distance from said instrument panel for presenting a map-like display of a relatively large scale for aid in reaching a destination shown in the main display means and which changes with changes in vehicle location; and

auxiliary display means integrated into and forming part of said instrument panel including means for presenting auxiliary information of a simplified nature as compared with the map-like display and relating to only a specific location within an area displayed by said display means and related to changing information displayed by said main display means to aid in guiding an operator to a desired destination;

said main indicator comprising means for displaying a map having a large scale to thereby display a wide area being traveled;

said auxiliary indicator comprising means for displaying auxiliary map information including a graphical representation of an intersection representative of a portion of the map displayed by the main display unit;

wherein said auxiliary map information comprises graphics showing a shape of an intersection and a symbol indicating the desired direction of travel at the intersection.

5. The display system of claim 4 wherein said auxiliary display means includes means for presenting a first display portion comprised of a word or words representing an approaching landmark shown by the main display means and further means for presenting a word or words representing a vehicular maneuver to be performed in the vicinity of said landmark.

6. The system of claim 4 wherein said auxiliary display means further comprises means for displaying at least one of accumulated mileage representative of a distance travelled by the vehicle and means for generating and presenting a display representative of an expected distance to be travelled to reach a predetermined destination when in a predetermined normal state.

7. The system of claim 4 wherein said auxiliary display means includes means for generating and presenting display information of a first color when said vehicle is greater than a predetermined distance from a given destination and for changing the first color of said display information when said vehicle is less than said predetermined distance from said given destination.

10. A road information displaying system according to claim 6 wherein different generated displays are displayed in a common display region at different time intervals thereby reducing the required display area.