Drive system

A drive system for a motor vehicle, comprising:

• a drive shaft arranged for rotating about an axis of rotation;
• a flywheel mass arrangement arranged on said drive shaft for rotating with said drive shaft, wherein at least one groove is arranged on a radially outer perimeter of said flywheel, a radially inner part of said groove being delimited by a groove base;
• an electric machine having a stator arrangement and a rotor arrangement rotatable relative to said stator arrangement for rotation about said axis of rotation, said rotor arrangement being connected to said drive shaft via said flywheel mass arrangement such that said electric machine is operative for one of exerting a torque for rotating said drive shaft and obtaining electric energy from rotation of said drive shaft, wherein said flywheel mass arrangement comprises an intermittent heat source;
• and
• a connecting region arranged between a first adjoining region of said flywheel mass arrangement and a second adjoining area of said rotor arrangement, said connecting region connecting said rotor arrangement to said flywheel, wherein said connecting region includes a diminished cross-sectional transfer area relative to said first and second adjoining regions such that said connecting region has a higher resistance to thermal conduction than at least one of said first and second adjoining regions, said connecting region being arranged proximate said base of said at least one groove.

A drive system for a motor vehicle, comprising:

• a drive shaft arranged for rotating about an axis of rotation;
• a flywheel mass arrangement arranged on said drive shaft for rotating with said drive shaft;
• an electric machine having a stator arrangement and a rotor arrangement rotatable relative to said stator arrangement for rotation about said axis of rotation, said rotor arrangement being connected to said drive shaft via said flywheel mass arrangement such that said electric machine is operative for one of exerting a torque for rotating said drive shaft and obtaining electric energy from rotation of said drive shaft, wherein said flywheel mass arrangement comprises an intermittent heat source;
• and
• a connecting region arranged between a first adjoining region of said flywheel mass arrangement and a second adjoining area of said rotor arrangement, said first adjoining region comprising an external toothing on a radially outer peripheral area of said flywheel mass arrangement and said second adjoining region comprising projections projecting from a base of a carrier element of said rotor arrangement, said projections engage said external toothing for fixing said carrier to said flywheel with respect to rotation, said connecting region comprising an area of engagement between said projections and said base of said carrier element and having a higher resistance to thermal conduction than at least one of said first and second adjoining regions.

A drive system for a motor vehicle, comprising:

• a drive shaft arranged for rotating about an axis of rotation;
• a flywheel mass arrangement arranged on said drive shaft for rotating with said drive shaft;
• an electric machine having a stator arrangement and a rotor arrangement rotatable relative to said stator arrangement for rotation about said axis of rotation, said rotor arrangement being connected to said drive shaft via said flywheel mass arrangement such that said electric machine is operative for one of exerting a torque for rotating said drive shaft and obtaining electric energy from rotation of said drive shaft, wherein said flywheel mass arrangement comprises an intermittent heat source;
• and
• a connecting region arranged between a first adjoining region of said flywheel mass arrangement and a second adjoining area of said rotor arrangement, said connecting region connecting said rotor arrangement to said flywheel and having a higher resistance to thermal conduction than at least one of said first and second adjoining regions, wherein said connecting region comprises a plurality of fastening bolts connecting said rotor arrangement to said flywheel mass arrangement and a spacer element arranged between the rotor arrangement and said flywheel mass arrangement.

A drive system for a motor vehicle, comprising:

• a drive shaft arranged for rotating about an axis of rotation;
• a flywheel mass arrangement arranged on said drive shaft for rotating with said drive shaft;
• an electric machine having a stator arrangement and a rotor arrangement rotatable relative to said stator arrangement for rotation about said axis of rotation, said rotor arrangement being connected to said drive shaft via said flywheel mass arrangement such that said electric machine is operative for one of exerting a torque for rotating said drive shaft and obtaining electric energy from rotation of said drive shaft, wherein said flywheel mass arrangement comprises an intermittent heat source;
• and
• a connecting region arranged between a first adjoining region of said flywheel mass arrangement and a second adjoining area of said rotor arrangement, said connecting region connecting said rotor arrangement to said flywheel and having a higher resistance to thermal conduction than at least one of said first and second adjoining regions, wherein said rotor arrangement comprises a support element connected with respect to rotation to the flywheel mass arrangement for forming said connection region and wherein one of said flywheel mass arrangement and said support element comprises a first bearing surface and the other of said flywheel mass arrangement and said support element comprises a second bearing surface, said first bearing surface having a smaller surface area than a second bearing surface segment, said first bearing surface comprises two supporting surface sections each comprising an annular construction such that a deepened region is formed therebetween.