Drive unit for hybrid vehicles

A drive unit for a vehicle comprising:

• a generator-motor arranged on a first axis;
• a drive motor arranged on a second axis in parallel with the first axis;
• a drive unit casing containing said generator-motor and said drive motor;
• an inverter for said generator-motor;
• and
• an inverter for said drive motor;
• wherein said inverter for said generator-motor and said inverter for said drive motor are attached to said drive unit casing diametrically disposed relative to the generator-motor and the drive motor and contiguous with each other.

A drive unit for a vehicle comprising:

• a generator-motor;
• a drive motor;
• a drive unit casing housing said generator-motor and said drive motor;
• a first inverter for operating one of said generator-motor and said drive motor;
• a second inverter for operating the other of said generator-motor and said drive motor;
• a first lead wire for connecting the one of said generator-motor and said drive motor to said first inverter;
• and
• a second lead wire for connecting the other of said generator-motor and said drive motor to said second inverter;
• wherein said first and second inverters are attached to said drive unit casing at positions at which a sum of lengths of said first and second lead wires when said first lead wire and said first inverter are connected to each other and said second lead wire and said second inverter are connected to each other, is shorter than a sum of the lengths of said first and second lead wires when said first lead wire and said second inverter are connected to each other and said second lead wire and said first inverter are connected to each other.

A drive unit for a vehicle comprising:

• a generator-motor;
• a drive motor;
• a drive unit casing housing said generator-motor and said drive motor;
• a first inverter for operating one of said generator-motor and said drive motor;
• a second inventer for operating the other of said generator-motor and said drive motor;
• a first lead wire for connecting one of said generator-motor and said drive motor to said first inverter;
• and
• a second lead wire for connecting the other of said generator-motor and said drive motor to said second inverter;
• wherein each of said first and second lead wires extend through said housing in a direction parallel to axes on which said generator-motor and said drive motor are oriented.

A drive unit for a vehicle comprising:

• a generator-motor;
• a drive motor;
• a drive unit casing containing said generator-motor and said drive motor;
• a first inverter for operating one of said generator-motor and said drive motor;
• and
• a second inverter for operating the other of said generator-motor and said drive motor;
• wherein said first and second inverters are arranged on an upper wall of the drive unit casing, said upper wall being inclined from a front side of the vehicle to a lower side of the vehicle.

A drive unit for a vehicle comprising:

• a generator-motor;
• a drive motor;
• a drive unit casing containing said generator-motor and said drive motor;
• a first inverter for operating one of said generator-motor and said drive motor;
• a second inverter for operating the other of said generator-motor and said drive motor;
• a partition wall within said drive unit casing for attaching said first and second inverters;
• and
• a heat sink formed on said partition wall.