Patent ID: 8437135
Filing Date: 2013-05-07
Classification: B60K

Abstract:
1. A hybrid drive of a hybrid vehicle, with an internal combustion engine, at least first and second electrical machines and an electrical energy store that is discharged when at least one of the electrical machines is operated as a motor and is charged when at least one of the electrical machines is operated as a generator, a converter being assigned to the electrical energy store, and first and second converters being assigned respectively to the first and second electrical machines, wherein: a) the first and second converters assigned to the first and second electrical machines are combined to form a modular converter unit; b) the modular converter unit having a basic module with the first converter assigned to a first electrical machine, connections for cooling the converter unit, fastening means for attaching the converter unit to a body structure, a connection for making electrical contact with the converter assigned to the electrical energy store, and a connection for making electrical contact with the first electrical machine; c) the modular converter unit further has at least one supplementary module that can be coupled to the basic module, the supplementary module having the second converter which is assigned to a second electrical machine and a connection for making electrical contact with the second electrical machine, the supplementary module further being capable of being coupled to the basic module so that the respective supplementary module can be cooled via the basic module, can be attached to the body structure via the basic module and can be coupled electrically to the converter of the electrical energy store via the basic module.