Illumination – Sound equipment illuminator
Patent
1994-12-27
1996-06-11
Gromada, Denise L.
Illumination
Sound equipment illuminator
362 36, 362 37, 362 41, 315 81, 307 108, 307 101, B60Q 112
Patent
active
055262422
ABSTRACT:
A vehicle cornering headlamp system which can be applied to any type of vehicle without changing the correspondence to a radiation angle, and which enables the radiation angle to follow the return of driver's eyes when the vehicle exits a curved road. The angular velocity .omega..sub.new is calculated at the time of travelling on a curved road on the basis of the output from an angular velocity sensor and the vehicle speed v is measured on the basis of distance pulses from a distance sensor. The current angular velocity, .omega..sub.new, is divided by the vehicle speed v to calculate the reciprocal number of a revolution radius r, which is multiplied by a constant K, so as to obtain a target value .theta.s of the radiation angle. Then, on the basis of the difference between .omega..sub.old, the angular velocity detected at a previous time, and .omega..sub.new, it is determined that the vehicle is approaching an end of the curved road when the gradient of the angular velocity .omega. changes toward the direction of zero. If an end of the curved road is detected, a target value .theta.s is set to half the target value .theta.s set when the vehicle is travelling on a curved road.
REFERENCES:
patent: 4858080 (1989-08-01), Oikawa
patent: 4868720 (1989-09-01), Miyauchi et al.
patent: 4870545 (1989-09-01), Hatanaka et al.
patent: 4908560 (1990-03-01), Shibata et al.
patent: 5404278 (1995-04-01), Shibata et al.
Takahashi Kazuki
Unno Takayuki
Gromada Denise L.
Koito Manufacturing Co. Ltd.
Sember Thomas M.
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