Controlling a clutch between an engine and a motor during a shift event in a hybrid vehicle

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Controlling a clutch between an engine and a motor during a shift event in a hybrid vehicle

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NEDOREZOV FELIX / JAHR KENNETH / GIBSON ALEXANDER O'CONNOR / MCCULLOUGH TODD / BANKER ADAM NATHAN

A hybrid electric vehicle includes an engine, an electric motor, a transmission gearbox, and a clutch selectively coupling the engine to the electric motor. Engine speed can drop dramatically when operating at high speeds during a scheduled shift event in the gearbox. To reduce the effects felt by the engine speed change, at least one controller is provided and programmed to slip the clutch when locked in response to a drive torque, estimated to be present upon completion of an anticipated shift event, exceeding available negative torque, such as regenerative torque and engine braking torque.

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Title :

Controlling a clutch between an engine and a motor during a shift event in a hybrid vehicle

Contributors:

NEDOREZOV FELIX (author) / JAHR KENNETH (author) / GIBSON ALEXANDER O'CONNOR (author) / MCCULLOUGH TODD (author) / BANKER ADAM NATHAN (author)

Publication date :

2016-11-22

Type of media :

Patent

Type of material :

Electronic Resource

Language :

English

Classification :

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 / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen