Vehicle powertrain with two-wheel and four-wheel drive ratios

Details Vehicle powertrain with two-wheel and four-wheel drive ratios Vehicle powertrain with two-wheel and four-wheel drive ratios

2006-06-20

2006-06-20

Marmor, Charles A. (Department: 3681)

Machine element or mechanism

Mechanical movements

Oscillating to reciprocating and intermittent rotary

49, 49, 49, 49, 49, C180S233000, C180S247000

Reexamination Certificate

active

07062984

ABSTRACT:
A vehicle powertrain incorporates a planetary gearset which is coupled with a front wheel drive mechanism and a rear wheel drive mechanism. The planetary gearset is controlled by two torque-transmitting mechanisms to establish an input member of the planetary gearset as well as a grounded member for the planetary gearset in combinations that will provide a two-wheel low drive ratio, a two-wheel high drive ratio, a four-wheel low drive ratio, and a four-wheel high drive ratio.

REFERENCES:
patent: 5411447 (1995-05-01), Frost
patent: 6612959 (2003-09-01), Frost
patent: 6942592 (2005-09-01), Haka
patent: 2002/0142877 (2002-10-01), Williams et al.
patent: 2003/0216209 (2003-11-01), Gradu
patent: 2004/0180749 (2004-09-01), Haka
patent: 2004/0180752 (2004-09-01), Haka
patent: 2004/0198548 (2004-10-01), Showalter et al.

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