Boots – shoes – and leggings
Patent
1988-11-29
1990-07-24
Black, Thomas G.
Boots, shoes, and leggings
303100, 303102, B60T 876
Patent
active
049439227
ABSTRACT:
A wheel speed comparator is provided in an antilock brake control assembly for a four-wheel drive automobile. The wheel speed comparator calculates the difference between the average wheel speed of the front wheels and that of the rear wheels. If the difference is larger than a predetermined value, then it is determined which average wheel speed is larger. If that of the front wheels is larger, the comparator provides a pressure reduction command to both rear wheels. If the command persists for over a predetermined period of time, then a pressure reduction command is given to one of the front wheels rotating at a slower speed than the other. If the average wheel speed of the rear wheels is larger, the speeds of the front wheels are compared with each other and a pressure reduction command is given to one of the front wheels having a smaller wheel speed than the other. If the command persists for over a predetermined period of time, then a pressure reduction command is given to both rear wheels.
REFERENCES:
patent: 4395761 (1983-07-01), Sato et al.
patent: 4670852 (1987-06-01), Masaki et al.
patent: 4729608 (1988-03-01), Fennel et al.
patent: 4759589 (1988-07-01), Leiber
patent: 4770266 (1988-09-01), Yamaguchi et al.
patent: 4790607 (1988-12-01), Atkins
patent: 4802711 (1989-02-01), Muto et al.
patent: 4805103 (1989-02-01), Matsuda
Black Thomas G.
Sumitomo Electric Industries Ltd.
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