Control system for shifting a gearbox

Details Control system for shifting a gearbox Control system for shifting a gearbox

1990-01-17

1992-05-05

Braun, Leslie A.

Machine element or mechanism

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

Preselected indexed position

74878, 74877, 475208, 475256, B60K 4110

Patent

active

051097303

ABSTRACT:
A power shift stage in the driveline of an internal combustion engine, is shifted depending on the load on the engine between at least two rotational speed ratios. A control system automatically controls shifting to improve driving comfort and increase productivity. The control system includes a switch connected to a fuel adjusting element or throttle, an engine rotational speed sensor and a control unit. The control unit automatically shifts the power shift stage in dependence upon the status of the switch and upon the sensed engine speed.

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patent: 4688449 (1987-08-01), Harada et al.
patent: 4833947 (1989-05-01), Izumi et al.
patent: 4897790 (1990-01-01), Bieber

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