Driving control apparatus

• US 20050267684A1
• Filed: 05/24/2005
• Published: 12/01/2005
• Est. Priority Date: 06/01/2004
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Kataoka, Hiroaki, Iwazaki, Katsuhiko, Rattapon, Chumsamutr, Niwa, Satoru, Kawakami, Seiji
• Granted Patent: US 7,454,291 B2
• Time in Patent Office: Days
• US Class Current: 701/301
• CPC Class Codes: B60K 2360/179 Distances to obstacles or vehicles
• CPC Class Codes: B60K 2370/179 Distances to obstacles or vehicles
• CPC Class Codes: B60K 31/04 and means for comparing one electrical quantity, e.g. voltage, pulse, waveform, flux, or the like, with another quantity of a like kind, which comparison means is involved in the development of an electrical signal which is fed into the controlling means
• CPC Class Codes: B60K 35/28 characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
• CPC Class Codes: B62D 15/025 Active steering aids, e.g. helping the driver by actively influencing the steering system after environment evaluation B62D1/28 takes precedence
• CPC Class Codes: B62D 15/026 combined with automatic distance control, i.e. electronic tow bar
• CPC Class Codes: B62D 15/029 Steering assistants using warnings or proposing actions to the driver without influencing the steering system

Abstract

A driving control apparatus of the present invention has a driving road keeping device for providing a torque to a steering mechanism so as to keep a vehicle traveling at a predetermined position on a driving road, a setting device for setting a need or no need for execution of a control of the driving road keeping device, and a cruise control device for controlling a driving force or speed of the vehicle so as to keep the vehicle in a predetermined driving state. A need or no need for execution of the control of the driving road keeping device is determined based on a setting state of the setting device and a control state of the cruise control device. A display indicating that the control of the driving road keeping device is ready is presented when the control of the driving road keeping device is in an executable state upon a state change of either the setting state of the setting device or the control state of the cruise control device. Therefore, with the display indicating the ready state, a driver can initiate the control of the driving road keeping device by changing the setting state of the setting device or the control state of the cruise control device in accordance with the content of the display.

Claims

1. A driving control apparatus comprising:

driving road keeping means for providing a torque to a steering mechanism so as to keep a vehicle traveling at a predetermined position on a driving road;

setting means for setting a need or no need for execution of a control of the driving road keeping means; and

cruise control means for controlling a driving force or speed of the vehicle so as to keep the vehicle in a predetermined driving state,

wherein a need or no need for execution of the control of the driving road keeping means is determined based on a setting state of the setting means and a control state of the cruise control means, and

wherein when the control of the driving road keeping means is in an executable state upon a state change of either (1) the setting state of the setting means or (2) the control state of the cruise control means, a display indicating a ready state of the control of the driving road keeping means is presented.

2. The driving control apparatus according to claim 1, wherein the executable state of the control of the driving road keeping means upon the state change of either (1) the setting state of the setting means or (2) the control state of the cruise control means, is (a) a state (i) in which the setting means selects a need for execution of the control of the driving road keeping means and (ii) in which a setting switch for setting a need or no need for activation of the cruise control means is off, and (b) state in which the driving road keeping means is in the executable state with execution of the control of the cruise control means.

3. The driving control apparatus according to claim 1, wherein the executable state of the control of the driving road keeping means upon the state change of either (1) the setting state of the setting means or (2) the control state of the cruise control means, is (c) a state (i) in which the setting means selects a need for execution of the control of the driving road keeping means and (iii) in which the control of the cruise control means is inactive, and (b) state in which the driving road keeping means is in the executable state with execution of the control of the cruise control means.

4. The driving control apparatus according to claim 3, wherein the control of the driving road keeping means is one to be executed within an activation speed region and wherein the ready state of the control of the driving road keeping means is a state in which a target speed of the cruise control means is set within the activation speed region.

5. The driving control apparatus according to claim 1, wherein the executable state of the control of the driving road keeping means upon the state change of either (1) the setting state of the setting means or (2) the control state of the cruise control means, is (A) a state (iv) in which the setting means sets no need for execution of the control of the driving road keeping means and (v) in which the cruise control means is active, and (B) state in which the driving road keeping means is executable.

6. The driving control apparatus according to claim 5, wherein the control of the driving road keeping means is one to be executed within an activation speed region and wherein the ready state of the control of the driving road keeping means is a state in which a target speed of the cruise control means is set within the activation speed region.

7. The driving control apparatus according to claim 1, wherein the control of the driving road keeping means is one to be executed within an activation speed region, and wherein the executable state of the control of the driving road keeping means upon the state change of either (1) the setting state of the setting means or (2) the control state of the cruise control means, is (C) a state (i) in which the setting means sets a need for execution of the control of the driving road keeping means and (vi) in which a setting switch for setting a need or no need for activation of the cruise control means is on, and (D) state in which a target speed of the cruise control means is off the activation speed region.

8. The driving control apparatus according to claim 1, wherein the control of the driving road keeping means is one to be executed within an activation speed region, and wherein the executable state of the control of the driving road keeping means upon the state change of either (1) the setting state of the setting means or (2) the control state of the cruise control means, is (E) a state (i) in which the setting means sets a need for execution of the control of the driving road keeping means and (v) in which the control of the cruise control means is active, and (D) state in which a target speed of the cruise control means is off the activation speed region.

9. The driving control apparatus according to claim 8, wherein the target speed of the cruise control means is off the activation speed region and within a predetermined range from a threshold of the activation speed region.

10. A driving control method of performing driving road keeping control for providing a torque to a steering mechanism so as to keep a vehicle traveling at a predetermined position on a driving road and cruise control for controlling a driving force or speed of the vehicle so as to keep the vehicle in a predetermined driving state,

wherein a need or no need for execution set by setting means for setting a need or no need for execution of a control of the driving road keeping control is determined based on a setting of the setting means and a control state of the cruise control, and

wherein when the driving road keeping control is in an executable state upon a state change of either (1) the setting state of the setting means or (2) the control state of the cruise control, a display indicating a ready state of the driving road keeping control is presented.

11. The driving control method according to claim 10, wherein the executable state of the driving road keeping control upon the state change of either (1) the setting state of the setting means or (2) the control state of the cruise control, is (a) a state (i) in which the setting means selects a need for execution of the driving road keeping control and (ii) in which a setting switch for setting a need or no need for activation of the cruise control is off, and (b) state in which the driving road keeping control is in the executable state with execution of the cruise control.

12. The driving control method according to claim 10, wherein the executable state of the driving road keeping control upon the state change of either (1) the setting state of the setting means or (2) the control state of the cruise control, is (c) a state (i) in which the setting means selects a need for execution of the driving road keeping control and (iii) in which the control of the cruise control is inactive, and (b) state in which the driving road keeping control is in the executable state with execution of the cruise control.

13. The driving control method according to claim 12, wherein the driving road keeping control is one to be executed within an activation speed region and wherein the ready state of the driving road keeping control is a state in which a target speed of the cruise control is set within the activation speed region.

14. The driving control method according to claim 10, wherein the executable state of the driving road keeping control upon the state change of either (1) the setting state of the setting means or (2) the control state of the cruise control, is (A) a state (iv) in which the setting means sets no need for execution of the driving road keeping control and (v) in which the cruise control is active, and (B) state in which the driving road keeping control is executable.

15. The driving control method according to claim 14, wherein the driving road keeping control is one to be executed within an activation speed region and wherein the ready state of the driving road keeping control is a state in which a target speed of the cruise control is set within the activation speed region.

16. The driving control method according to claim 10, wherein the driving road keeping control is one to be executed within an activation speed region, and wherein the executable state of the driving road keeping control upon the state change of either (1) the setting state of the setting means or (2) the control state of the cruise control, is (C) a state (i) in which the setting means sets a need for execution of the driving road keeping control and (vi) in which a setting switch for setting a need or no need for activation of the cruise control is on, and (D) state in which a target speed of the cruise control is off the activation speed region.

17. The driving control method according to claim 10, wherein the driving road keeping control is one to be executed within an activation speed region, and wherein the executable state of the driving road keeping control upon the state change of either (1) the setting state of the setting means or (2) the control state of the cruise control, is (E) a state (i) in which the setting means sets a need for execution of the driving road keeping control and (v) in which the cruise control is active, and (D) state in which a target speed of the cruise control is off the activation speed region.

18. The driving control method according to claim 17, wherein the target speed of the cruise control is off the activation speed region and within a predetermined range from a threshold of the activation speed region.