Blocking circuit for transmission shifting responsive engine torque reducer

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...

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Bibliographische Detailangaben
Hauptverfasser:	KUERSCHNER, MICHAEL, JUERGENS, GUNTER, GREINER, ALBRECHT
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES CONTROLLING CONTROLLING COMBUSTION ENGINES ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICS REGULATING ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	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.