Cruise control apparatus and control method thereof
First Claim
1. A cruise control apparatus, comprising:
- a communication unit to receive road information from a navigation device; and
a controller that confirms whether or not deceleration information is present in the road information, confirms a speed corresponding to the deceleration information if the deceleration information is present, compares the confirmed speed with a current speed, and controls a speed of a vehicle to the confirmed speed if the confirmed speed is greater than the current speed; and
a speed input unit to receive a speed of the vehicle from a driver,wherein the deceleration information present in the road information received from the navigation device includes at least one of a position of a curve, a turning radius of the vehicle at a curve, and a speed limit,wherein the deceleration information indicates the position of a bump, and the controller controls the speed of the vehicle based on the information on the position of the bump to set the speed of the vehicle to a predetermined constant speed while passing the position of the bump,wherein the controller confirms the highest speed limit if the deceleration information indicates the speed limit, and controls the speed of the vehicle to the highest speed limit, andwherein when the speed of the vehicle from the driver is received, the controller compares the driver input speed with the highest speed limit, and controls the vehicle to a lower speed among the driver input speed and the highest speed limit based on a comparison result.
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Accused Products
Abstract
Disclosed is a cruise control method including traveling a vehicle at a speed input by a driver, receiving road information from a navigation device, confirming whether or not deceleration information is present in the road information, confirming a speed corresponding to the deceleration information if the deceleration information is present, and controlling a speed of the vehicle to the confirmed speed if the confirmed speed is greater than the input speed. If the vehicle speed exceeds the speed limit of a road, the vehicle speed is automatically reduced to below the speed limit, and a warning operation is performed. Thereby, probability of accidents due to speeding may be reduced, and it may be possible to make the driver obey the Road Traffic Act and to prevent imposition of fines due to speeding. Further, the vehicle speed is automatically reduced at bumps or curves, resulting in enhanced safety and driver convenience.
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Citations
14 Claims
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1. A cruise control apparatus, comprising:
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a communication unit to receive road information from a navigation device; and a controller that confirms whether or not deceleration information is present in the road information, confirms a speed corresponding to the deceleration information if the deceleration information is present, compares the confirmed speed with a current speed, and controls a speed of a vehicle to the confirmed speed if the confirmed speed is greater than the current speed; and a speed input unit to receive a speed of the vehicle from a driver, wherein the deceleration information present in the road information received from the navigation device includes at least one of a position of a curve, a turning radius of the vehicle at a curve, and a speed limit, wherein the deceleration information indicates the position of a bump, and the controller controls the speed of the vehicle based on the information on the position of the bump to set the speed of the vehicle to a predetermined constant speed while passing the position of the bump, wherein the controller confirms the highest speed limit if the deceleration information indicates the speed limit, and controls the speed of the vehicle to the highest speed limit, and wherein when the speed of the vehicle from the driver is received, the controller compares the driver input speed with the highest speed limit, and controls the vehicle to a lower speed among the driver input speed and the highest speed limit based on a comparison result. - View Dependent Claims (2, 3, 9, 10, 11)
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4. A cruise control method, comprising:
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traveling a vehicle at a speed input by a driver; receiving road information from a navigation device; confirming whether or not deceleration information is present in the road information; confirming a speed corresponding to the deceleration information if the deceleration information is present; and controlling a speed of the vehicle to the confirmed speed if the confirmed speed is greater than the input speed based on a comparison result of the confirmed speed and the input speed, wherein the deceleration information present in the road information received from the navigation device includes a position of a bump, and wherein the controlling the speed of the vehicle includes; detecting a speed of each of a plurality of wheels provided at the vehicle if the position of the curve and the turning radius are present in the deceleration information; calculating the vehicle speed based on the speed of the plurality of wheels; calculating a lateral acceleration based on the vehicle speed and the turning radius of the vehicle at the curve; calculating an allowable vehicle speed based on the lateral acceleration; controlling the speed of the vehicle to the allowable vehicle speed at the position of the curve; comparing the input speed with the allowable vehicle speed; and controlling the speed of the vehicle to a lower speed among the input speed and the allowable vehicle speed when the speed of the vehicle from the driver is received. - View Dependent Claims (5, 6, 7, 8, 12, 13, 14)
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Specification