Boots – shoes – and leggings
Patent
1985-07-19
1987-10-27
Chin, Gary
Boots, shoes, and leggings
364456, 364461, 340903, 180169, 180170, 342 70, 342455, G06F 1550
Patent
active
047034297
ABSTRACT:
A system and method for controlling a vehicle speed to follow a preceding vehicle moving on the same traffic lane of a road as the vehicle. The system comprises: means for transmitting electromagnetic waves toward a vehicle movement direction, receiving the reflected waves from a reflecting object, measuring a distance to the reflecting object on the basis of a propagation delay time on the transmitted and reflected wave, and outputting respective Doppler signals derived from a relative movement of the reflecting object to the vehicle; means for calculating a change rate of the phase difference between the Doppler signals with respect to the measured distance; means for determining whether the reflecting object is the preceding vehicle on the basis of a magnitude of the differentiated phase difference with respect to a reference value associated with the distance and set according a radius of curvature of the traffic lane on which the vehicle moves; and means for controlling the vehicle speed so as to follow the preceding vehicle at a safe intervehicle distance on the basis of the vehicle speed and measured distance.
REFERENCES:
patent: 4072945 (1978-02-01), Katsumata et al.
patent: 4101888 (1978-07-01), Heller et al.
patent: 4148028 (1979-04-01), Fujiki
patent: 4165511 (1979-08-01), Wocher et al.
patent: 4519469 (1985-05-01), Hayashi et al.
patent: 4543577 (1985-09-01), Tachibana et al.
patent: 4621705 (1986-11-01), Etoh
patent: 4622636 (1986-11-01), Tachibana
Chin Gary
Nissan Motor Company Limited
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