Vehicle cruising control device
First Claim
1. A vehicle cruising control device for a vehicle, comprising;
- a road property detecting unit for detecting a road property of a road on which the vehicle is traveling; and
a driving-force control unit for controlling driving-force characteristics of the vehicle in accordance with the detected road property, wherein, when the road property detecting unit is impossible to detect the road property, the driving-force control unit controls the driving-force characteristics of the vehicle on the ground of the road property which has been detected before the road property detecting unit becomes impossible to detect the road property.
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Accused Products
Abstract
A vehicle cruising control device has a vehicle-position/traveling-direction calculating circuit 21 which receives data from a GPS signal receiver 11, a vehicle speed sensor 12, an angular-velocity sensor 13 and a map data base 30 to specify a road on which the vehicle is traveling and a road property gain circuit 23 which gains a sort of road from the map data base 30, as road property. In the device, a driving force control unit 40 controls a vehicle driving unit 50 on the ground of the sort of road. If the map matching becomes to be improper, then the road property gain circuit 23 operates to maintain the road property just before malfunction of the map matching until a traveling-distance after malfunction of the map matching reaches a predetermined distance. The traveling-distance is calculated by a traveling-distance calculating circuit 22.
9 Citations
8 Claims
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1. A vehicle cruising control device for a vehicle, comprising;
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a road property detecting unit for detecting a road property of a road on which the vehicle is traveling; and
a driving-force control unit for controlling driving-force characteristics of the vehicle in accordance with the detected road property, wherein, when the road property detecting unit is impossible to detect the road property, the driving-force control unit controls the driving-force characteristics of the vehicle on the ground of the road property which has been detected before the road property detecting unit becomes impossible to detect the road property. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A vehicle cruising control device for a vehicle, comprising:
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road property detecting means for detecting a road property of a road on which the vehicle is traveling; and
driving-force control means for controlling driving-force characteristics of the vehicle in accordance with the detected road property, wherein, when the road property detecting means is impossible to detect the road property, the driving-force control means controls the driving-force characteristics of the vehicle on the ground of the road property which has been detected before the road property detecting means becomes impossible to detect the road property.
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8. A method of cruise-controlling of a vehicle, comprising
detecting a road property of a road on which the vehicle is travelling, controlling driving force characteristics of the vehicle in accordance with the detected road property, determining a road property detecting unit being inoperable, storing the road property which has been detected prior to the determination of inoperability of the road property detecting unit, and continuing to control the driving force characteristics of the vehicle based on the stored road property.
Specification