Blocking circuit for transmission shifting responsive engine tor

Details Blocking circuit for transmission shifting responsive engine tor Blocking circuit for transmission shifting responsive engine tor

1986-04-07

1989-03-07

Lall, Parshotam S.

Boots, shoes, and leggings

36443108, 123419, 74866, B60K 900

Patent

active

048112240

ABSTRACT:
A device is provided for reducing the engine torque when shifting up a change-speed gear transmission connected downstream of an internal combustion engine. A final control element for influencing the engine torque is connected to a control circuit and causes a reduction in the engine torque only in the full load range of the internal combustion engine and only above a limit value of the negative changes in engine speed over time. Comparator circuits for positive changes in speed over time are connected to the final control element such that the reduction in engine torque is blocked above a limit value of the positive changes in speed over time. In this way, overshoots triggered by positive changes in speed over time cannot result in a reduction in the engine torque.

REFERENCES:
patent: 4370904 (1983-02-01), Muller et al.
patent: 4403527 (1983-09-01), Mohl et al.
patent: 4501171 (1985-02-01), Muller et al.
patent: 4704541 (1987-11-01), Leiber

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