Transmission for four-wheel drive vehicles

Details Transmission for four-wheel drive vehicles Transmission for four-wheel drive vehicles

1984-06-19

1987-07-07

Herrmann, Allan D.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74867, 74752A, B60K 4104

Patent

active

046778799

ABSTRACT:
An apparatus for controlling a transmission comprises a power transmission assembly for transmitting power from an engine, an input member connected to an output side of the power transmission assembly, a first power train connected to the input member and having at least two different speed-change ratios, a second power train communicating with the first power train and including a dog clutch for cutting off or changing over power, a brake assembly for locking the input member, and a clutch assembly for engaging and disengaging the input member with the first power train. A control system is provided for engaging the brake assembly in response to a signal indicative of changing-over of the second power train when the clutch assembly is in the disengaged state.

REFERENCES:
patent: 2923175 (1960-02-01), Perkins
patent: 4089239 (1978-05-01), Murakami et al.
patent: 4274306 (1981-06-01), Yokoi et al.
patent: 4312248 (1982-01-01), Sugimoto et al.
patent: 4324153 (1982-04-01), Sugimoto
patent: 4367528 (1983-01-01), Kawamoto
patent: 4480505 (1984-11-01), Takano et al.
patent: 4503927 (1985-03-01), Hayakawa et al.
patent: 4508190 (1985-04-01), Uchiyama
patent: 4512212 (1985-04-01), Ishikawa
patent: 4527447 (1985-07-01), Richards

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