Apparatus for and method of controlling vehicular systems while travelling

• US 6,009,374 A
• Filed: 10/11/1996
• Issued: 12/28/1999
• Est. Priority Date: 10/24/1995
• Status: Expired due to Fees

• Current Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Urahashi, Kazuyoshi
• Primary Examiner(s): Cuchlinski, Jr., William A.
• Assistant Examiner(s): Donnelly, Arthur D.
• Application Number:
  US08/730,669
• Time in Patent Office: 1,173 Days
• Field of Search: 701/26, 701/36, 701/37, 701/38, 701/41, 701/48, 701/51, 701/54, 701/65, 701/70, 701/72, 701/103, 701/200, 701/208, 701/209, 701/220, 701/221, 340/990, 340/988, 340/995
• US Class Current: 701/209
• CPC Class Codes: B60K 31/0058 responsive to externally generated signalling
• CPC Class Codes: G08G 1/096827 where the route is computed onboard
• CPC Class Codes: G08G 1/096872 where instructions are given per voice

Abstract

A vehicle-mounted travel control system including a navigation system control section which controls a storage section, a position detection section for detecting the present position of the vehicle, a course decision section for deciding an intended travel course of the vehicle. The travel control system also includes a central control section for managing control sections based on information of various sensors installed in the vehicle. The system also includes a terminal device which is connected to the navigation system control section and the central control section. The terminal device is adapted to determine at least one predetermined time responsive to an actual vehicle speed based on actual vehicle speed information transferred from said central control section, and the navigation system control section is adapted to determine an intended travel position after elapse of a predetermined time with reference to the present position of the vehicle based on the vehicle speed and predetermined time transferred from the terminal device.

Claims

1. A vehicle-mounted travel control system, comprising:

a navigation system control section which controls a storage section for storing map information inclusive of position information of a vehicle, a position detection section for detecting a present position of the vehicle, a course decision section for deciding an intended travel course of the vehicle, and in which position information of the present position of the vehicle is calculated by superimposing the position information detected by said position detection section onto the map information read out from said storage section;

a central control section for managing at least one subsystem control section based on information from a plurality of sensors installed in the vehicle, at least one of said sensors sensing an actual vehicle speed; and

a terminal device which is connected to said navigation system control section and said central control section, and which processes information from both of said navigation system control section and said central control section and transfers information to said navigation system control section and said central control section,

wherein said terminal device determines at least one predetermined time responsive to the actual vehicle speed based on actual vehicle speed information transferred from said central control section, and

wherein said navigation system control section determines an intended travel position where the vehicle will be after the lapse of the predetermined time based on the actual vehicle speed and the predetermined time transferred from said terminal device, and virtually advances a virtual position of the vehicle in a memory to the determined intended travel position.

2. A vehicle-mounted travel control system according to claim 1, wherein said terminal device is adapted to judge that the actual vehicle speed is zero, and so that the vehicle has stopped, to set a provisional vehicle speed when it is judged that the vehicle has stopped, and to determine the predetermined time responsive to said set provisional vehicle speed.

3. A vehicle-mounted travel control system according to claim 1, wherein said navigation system control section is adapted to read out vehicle position information corresponding to said intended travel position from said storage section and to transfer said position information to said terminal device.

4. A vehicle-mounted travel control system according to claim 1, wherein said terminal device is adapted to judge whether a tunnel exists at the intended travel position based on the attribute of the position information of the intended travel position after said predetermined time has elapsed;

and to produce control information to said at least one control section immediately before going into the tunnel at the intended travel position when it is judged that a tunnel exists at the intended travel position.

5. A vehicle-mounted travel control system according to claim 1, wherein said terminal device is adapted to judge whether a railroad crossing exists at the intended travel position based on the attribute of the position information of the intended travel position and to produce control information to at least one of controlling devices mounted on said vehicle immediately before going into the railroad crossing of the intended travel position when it is judged that the tunnel exists on the intended travel position.

6. A vehicle-mounted travel control system according to claim 1, wherein said navigation system control section is provide with a voice message notification section for providing a voice message, and a receive section for receiving weather information, wherein said terminal device is adapted to extract weather information corresponding to the position information of the present position and to the position information of the intended travel position based on the weather information received by said receive section, and to compare the extracted weather information corresponding to the present position with the extracted weather information corresponding to the intended travel position to judge whether the weather condition of the intended travel position is different from the weather condition of the present position;

and to read out the alarm information and to transfer the alarm information to said voice message notification section when it is judged that the weather condition of the intended travel position is different from the weather condition of the present position, and

wherein said voice message notification section provides a driver with a voice message advising the driver of the alarm information transferred from said terminal device.

7. A vehicle-mounted travel control system according to claim 1, wherein said terminal device is adapted to extract weather information corresponding to the position information of the intended travel position transferred from said navigation system control section based on the weather information received by said receive section, and to judge whether the weather condition of the intended travel position is snow;

and to produce control information to at least one of said first control section and said second control section.

8. A control method for controlling operating systems of a vehicle having a vehicle-mounted travel control system, the travel control system including a navigation system control section which controls a storage section, a position detection section for detecting a present position of the vehicle, and a course decision section for deciding an intended travel course of the vehicle, and also including a central control section for managing at least one subsystem control section based on information from various sensors installed in the vehicle, at least one of the sensors sensing actual vehicle speed information;

and also including a terminal device which is connected to said navigation system control section and said central control section, and which processes information from both said navigation system control section and said central control section and transfers the information to said navigation system control section and said central control section, said method comprising the steps of;

determining at least one predetermined time responsive to an actual vehicle speed based on the actual vehicle speed information transferred from said central control section,

determining an intended travel position, where the vehicle is expected to be after the predetermined time has elapsed, with reference to the present position of the vehicle based on the actual vehicle speed and predetermined time transferred from said terminal device, and

virtually advancing a virtual position of the vehicle in a memory to the determined intended travel position.

9. A method according to claim 8, further comprising the steps of

judging that the actual vehicle speed is zero and so that the vehicle has stopped,

setting a provisional vehicle speed when it is judged that the vehicle is stopping, and carrying out said step of determining said predetermined time based on said set provisional vehicle speed rather than said actual vehicle speed.

10. A method according to claim 8, further comprising

a step of judging whether a tunnel exists at the intended travel position based on an associated attribute of the position information of the intended travel position, and

a step of producing control information to said at least one of subsystem control section immediately before going into the tunnel at the intended travel position when it is judged that the tunnel exists at the intended travel position.

11. A method of according to claim 8, further comprising

a step of judging whether a railroad crossing exists at the intended travel position based on an associated attribute of the position information of the intended travel position, and

a step of producing control information to said at least one of subsystem control section immediately before going into the railroad crossing of the intended travel position when it is judged that a tunnel exists at the intended travel position.

12. A vehicle-mounted travel control system, comprising:

a storage storing map information, said map information including first information concerning a road for a vehicle and second information concerning a root landmark; and

a terminal device for determining an intended travel position at which said vehicle is expected to exist when said vehicle travels from a present position for a predetermined time, and for producing control information for controlling said vehicle based on said second information and said intended travel position before said vehicle arrives at said intended position,

wherein said root landmark is a tunnel, and said terminal device produces said control information when said tunnel exists at said intended position.

13. A vehicle-mounted travel control system according to claim 12, further comprising a lighting device which is controlled based on said control information.

14. A vehicle-mounted travel control system according to claim 12, further comprising an air inlet path control section for switching an air conditioner from an external air inlet to an internal air circulation, or from the internal air circulation to the external air inlet based on said control information.

15. A vehicle-mounted travel control system, comprising:

a storage storing map information, said map information including first information concerning a road for a vehicle and second information concerning a root landmark; and

a terminal device for determining an intended travel position at which said vehicle is expected to exist when said vehicle travels from a present position for a predetermined time, and for producing control information for controlling said vehicle based on said second information and said intended travel position before said vehicle arrives at said intended position,

wherein said root landmark is a railroad crossing, and said terminal device produces said control information when said railroad crossing exists at said intended position.

16. A vehicle-mounted travel control system according to claim 15, further comprising an audio control device for controlling volume of an audio device.

17. A vehicle-mounted travel control system, comprising:

a storage storing map information, said map information including weather information; and

a terminal device for determining an intended travel position at which said vehicle is expected to exist when said vehicle travels from a present position for a predetermined time, and for producing control information based on said weather information and said intended travel position before said vehicle arrives at said intended position.

18. A vehicle-mounted travel control system according to claim 17, further comprising a voice message notification section for providing alarm information, said alarm information being produced before said vehicle arrives at said intended position.