Adaptive speed control device
First Claim
1. An adaptive speed control device for a host vehicle comprising:
- a speed detecting section configured to detect a current speed of the host vehicle, a current posted speed limit, a new posted speed limit, and a transition point along a host vehicle'"'"'s expected path corresponding to the new posted speed limit;
a notification section configured to automatically select the new posted speed limit as a selected speed and provide a notification of the new posted speed limit during a prescribed notification timing before the host vehicle reaches the transition point;
a user input device; and
an adaptive speed control section configured to automatically change a speed of the host vehicle from the current speed to the selected speed upon receiving an input from the user input device during a prescribed activation timing before reaching the transition point, the prescribed activation timing occurring simultaneously with the prescribed notification timing authorizing the adaptive speed control section to change the speed of the host vehicle to the selected speed and after delaying changing the speed of the host vehicle to the selected speed until the host vehicle reaches the transition point.
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Accused Products
Abstract
An adaptive speed control device includes a posted speed change detecting section, a notification section, a set speed signal receiving section, and an adaptive speed control section. The posted speed change detecting section is configured to detect an upcoming change to a posted speed limit at. The notification section is configured to control a user interface device to notify a new posted speed limit at a prescribed notification timing before the vehicle reaches a transition point. The set speed signal receiving section is configured to accept a set speed signal from a user input device. The adaptive speed control section is configured to change a set speed of the vehicle according to the new posted speed limit and to automatically change a speed to the set speed upon receiving the set speed signal at or after a prescribed activation timing that occurs simultaneously with or after the prescribed notification timing.
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Citations
22 Claims
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1. An adaptive speed control device for a host vehicle comprising:
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a speed detecting section configured to detect a current speed of the host vehicle, a current posted speed limit, a new posted speed limit, and a transition point along a host vehicle'"'"'s expected path corresponding to the new posted speed limit; a notification section configured to automatically select the new posted speed limit as a selected speed and provide a notification of the new posted speed limit during a prescribed notification timing before the host vehicle reaches the transition point; a user input device; and an adaptive speed control section configured to automatically change a speed of the host vehicle from the current speed to the selected speed upon receiving an input from the user input device during a prescribed activation timing before reaching the transition point, the prescribed activation timing occurring simultaneously with the prescribed notification timing authorizing the adaptive speed control section to change the speed of the host vehicle to the selected speed and after delaying changing the speed of the host vehicle to the selected speed until the host vehicle reaches the transition point. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A vehicle comprising:
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a user interface device including a user input device; a vehicle speed controller configured and arranged to automatically control a speed of the vehicle; and an adaptive speed control device operatively coupled to the user interface device and the vehicle speed controller, the adaptive speed control device including; an adaptive speed control section configured to maintain a current speed of the vehicle; a speed detecting section configured to detect the current speed of the vehicle, a current posted speed limit, a new posted speed limit, and a transition point along an expected path corresponding to the new posted speed limit while the adaptive speed control section is maintaining the current speed of the vehicle; and a notification section configured to automatically select the new posted speed limit as a selected speed and provide a notification of the new posted speed limit during a prescribed notification timing before the vehicle reaches the transition point while the adaptive speed control section is maintaining the current speed of the vehicle; the adaptive speed control section being further configured to maintain the current speed in the absence of an input from the user input device authorizing a change in vehicle speed, and to automatically change the speed of the vehicle from the current speed to the selected speed upon receiving an input from the user input device during a prescribed activation timing before reaching the transition point, the prescribed activation timing occurring simultaneously with the prescribed notification timing authorizing the adaptive speed control section to change the speed of the vehicle to the selected speed. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of adaptively controlling the speed of a host vehicle, the method comprising
detecting a current speed limit; -
detecting a new speed limit; detecting a transition point from the current speed limit to the new speed limit; determining a notification timing based on a notification distance from the transition point; automatically selecting the new posted speed limit as a selected speed; providing a notification of the selected speed during the notification timing upon the host vehicle reaching the notification distance; receiving an input from a user input device during the notification timing; upon receiving the input during the notification timing that authorizes a change in the speed of the host vehicle to the selected speed, delaying changing the speed of the host vehicle to the selected speed until the host vehicle reaches the transition point; automatically changing the speed of the host vehicle from a current speed to the selected speed upon receiving the input during the notification timing that authorizes a change in the speed of the host vehicle to the selected speed and after delaying changing the speed of the host vehicle to the selected speed until the host vehicle reaches the transition point; determining an activation timing based on an activation distance from the transition point, with the activation timing being simultaneous with the notification timing; and changing the speed of the host vehicle from the current speed to the selected speed only upon receiving the input during the activation timing. - View Dependent Claims (19, 20, 21, 22)
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Specification