Synchronized mid-mounted clutch for variable power train

Details Synchronized mid-mounted clutch for variable power train Synchronized mid-mounted clutch for variable power train

1984-10-18

1987-05-05

Lall, Parshotam S.

Boots, shoes, and leggings

74687, 192 358, 192 0076, B60K 4128, G06F 1520

Patent

active

046637141

ABSTRACT:
A microprocessor controlled drive train having an engine-connected variable ratio speed transmission and a load-connected range gear transmission connected by a mid-mounted clutch disposed therebetween has an automatic clutch control mode of operation, with the clutch disengaged and the range transmission in gear to complete a shift, wherein the speeds of the clutch sides are synchronized before engagement by appropriately varying the ratio of the speed transmission, thereby eliminating shift shock. This automatic clutch control mode is preferably employed in combination with operating modes which control both the speed transmission ratio and engine throttle to maintain fuel efficient operation.

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"Hydrostatic Transmissions Controls-Is there Space for Optimization?", Zarotti et al., S.A.E., paper 780465, Apr. 1978.
"Earth Movers Dig into Computers", Truck & Off-Highway Industries, Jan./Feb., 1983, pp. 33-35.

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