Patent ID: 7645209
Filing Date: 2010-01-12
Classification: B60K,B60L,B60W,Y02T,Y10T

Abstract:
1. A method of operating a parallel hybrid powertrain ( 1 ) of a motor vehicle ( 19 ) in which the parallel hybrid powertrain ( 1 ) comprises a single output ( 5 ), plurality of multiple drive units ( 2 , 3 ) comprising at least one internal combustion engine ( 2 ) and at least one electric motor ( 3 ), the at least one electric motor ( 3 ) being located in the parallel hybrid powertrain ( 1 ), between the single output ( 5 ) and the at least one internal combustion engine ( 2 ), a first friction-locking shifting element ( 7 ) being located between the internal combustion engine ( 2 ) and the electric motor ( 3 ), and a coupling element ( 8 A), having a rotational speed dependent known value, and at least a second friction-locking shifting element ( 30 ) being located between the electric motor ( 3 ) and the single output ( 5 ), a target-output torque (m_fahr_soll), which propels the output ( 5 ), depends on a power transmission capacity of the second shifting element ( 30 ), the method comprising the steps of: allowing the power transmission capacity of the second shifting element ( controlling the power transmission capacity of the second shifting element ( controlling a target drive torque (m_ controllably regulating the target slippage parameter (s_