A transmission assembly for a vehicle includes a transmission and a controller. The transmission includes an input member, at least one clutch and gear set, and an output member. The input member receives an input torque from an engine. The output member receives an output torque from the clutch and gear set(s). The clutch and gear set(s) connect to the input member and establish a plurality of operating states including a neutral idle (NI) state. A designated NI clutch is selectively actuated to enter the NI state when the transmission is in a drive state and the vehicle is stationary. The controller calculates a reference slip error as a function of engine and turbine speed, and detects when the designated NI clutch is exhausting fluid while operating in the NI state using a function of the reference slip error. A control action executes when the exhausting NI clutch is detected.
Detection of an exhausting clutch in a neutral idle-equipped transmission
19.04.2016
Patent
Elektronische Ressource
Englisch
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / F16H Getriebe , GEARING / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
Optimal engine-transmission control of neutral-idle clutch application
Kraftfahrwesen | 2001
|Optimal engine-transmission control of neutral-idle clutch application
Online Contents | 2001
|Optimal engine-transmission control of neutral-idle clutch application
Tema Archiv | 2001
|Air exhausting method and structure for automobile clutch oil pump
Europäisches Patentamt | 2015
|Integrated Engine-Transmission Control of Neutral-Idle Shifts
British Library Conference Proceedings | 2000
|