Brake system for four-wheel drive vehicles

Details Brake system for four-wheel drive vehicles Brake system for four-wheel drive vehicles

1988-02-16

1989-03-14

Rice, Kenneth R.

Motor vehicles

Having four wheels driven

With means for braking either structure transmitting drive...

180247, 192 4A, 192 13A, B60K 2308

Patent

active

048118117

ABSTRACT:
A clutch control system for the front wheel drive clutch of a four-wheel drive vehicle engages the front wheel drive clutch when both service brakes are simultaneously released or simultaneously applied, but disengages the clutch when only the left or the right service brake alone is applied. The control system includes three brake-operated switches, a manually-operated switch and a speed responsive switch connected to the solenoid of a front wheel drive clutch control valve.

REFERENCES:
patent: 2874790 (1959-02-01), Hennessey
patent: 3081836 (1963-03-01), Hill
patent: 3665018 (1982-04-01), Higuchi et al.
patent: 3963085 (1976-06-01), Vinton
patent: 4088208 (1978-05-01), Goode
patent: 4218938 (1980-08-01), Hattori
patent: 4456108 (1984-06-01), Kageyama
patent: 4466519 (1984-08-01), Romer
patent: 4589511 (1986-05-01), Leiber
patent: 4711317 (1987-12-01), Sakakiyama
patent: 4711318 (1987-12-01), Kitade
patent: 4714127 (1987-12-01), Fanti et al.
patent: 4746173 (1988-05-01), Fennel et al.
Massey-Ferguson MF 3000 Series Advertising Material.

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