Motor vehicles – With means for controlling operation responsive to... – Radiation – force – or waves reflected from external object or...
Patent
1993-01-22
1994-05-24
Johnson, Brian L.
Motor vehicles
With means for controlling operation responsive to...
Radiation, force, or waves reflected from external object or...
340903, 342 59, 342 71, 342109, 36442604, B62D 124, B60T 716
Patent
active
053140370
ABSTRACT:
An automobile collision avoidance system based on laser radars for aiding in avoidance of automobile collisions. The very small beam width, very small angular resolution and the highly directional character of laser radars provide a plurality of advantages as compared with microwave radars. With two sets of laser radars this system can detect the location, the direction of movement, the speed and the size of all obstacles specifically and precisely. This system includes laser radars with transmitters and receivers, a computer, a warning device and an optional automatic braking device. A steering wheel rotation sensor or a laser gyroscope is utilized to give information of system-equipped vehicle's directional change. The system will compare the predicted collision time with the minimal allowable time to determine the imminency of a collision. When the system determines that a situation likely to result in an accident exists, it provides a warning. An optional automatic braking device is disclosed to be used when the vehicle user fails to respond to a warning. Furthermore, a wheel skidding detecting system based on a discrepancy between the directional change rate predicted by a steering wheel rotation sensor and the actual directional change rate detected by a laser gyroscope is also disclosed. The detection of wheel skidding can be utilized by various vehicle control designs, including designs to adjust rear wheel steered angle in a four wheel steering vehicle, to alleviate or correct the wheel skidding. Designs to decelerate the engine or to adjust the transmission to lower gears are also disclosed to alleviate wheel skidding.
REFERENCES:
patent: 4072945 (1978-02-01), Katsumata et al.
patent: 4168499 (1979-09-01), Matsumara et al.
patent: 4403220 (1983-09-01), Donovan
patent: 4552456 (1985-11-01), Endo
patent: 4626850 (1986-12-01), Chey
patent: 5103925 (1992-04-01), Imaseki et al.
patent: 5162794 (1992-11-01), Seith
patent: 5165497 (1992-11-01), Chi
patent: 5177462 (1993-01-01), Kajiwara
patent: 5189619 (1993-02-01), Adachi et al.
patent: 5203422 (1993-04-01), Estep et al.
Shaw David C.-H.
Shaw Judy Z.-Z
Bender S. Michael
Johnson Brian L.
LandOfFree
Automobile collision avoidance system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automobile collision avoidance system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automobile collision avoidance system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1966958