A traction system for a vehicle

A computer program product to control a drive system for a vehicle,

• wherein the drive system comprises an output shaft in a combustion engine, an input shaft of a gearbox, a first electrical machine, comprising a stator and a rotor, a planetary gear comprising three components in the form of a sun wheel, a ring gear and a planetary wheel carrier, wherein the output shaft of the combustion engine is connected to a first of said components in the planetary gear, so that a rotation of such shaft leads to a rotation of such first of said components, wherein the input shaft of the gearbox is connected with a second of said components of the planetary gear, so that a rotation of such shaft leads to a rotation of such second of said components, and wherein the rotor of the electrical machine is connected with a third of said components in the planetary gear, so that a rotation of the rotor leads to a rotation of such third of said components, wherein the drive system also comprises a first locking means, which may be moved between a locked position in which two of said components are locked together, so that the three components rotate with the same rotational speed, and a release position in which the components are allowed to rotate at different rotational speeds, wherein the drive system comprises a second electrical machine, with a stator and a rotor, connected to the combustion engine's output shaft between the combustion engine and said first of said components, and a second locking means which may be moved between a locked position, in which the combustion engine's output shaft is locked to the second electrical machine's rotor and said first of said components, and a release position, in which the output shaft of the combustion engine is disconnected from the second electrical machine's rotor and said first of said components, and is allowed to rotate independently of these, and
• wherein the computer program product is stored in a non-transitory computer-readable medium and comprises computer-readable program code portions embodied therein, the computer-readable program code portions comprises computer code to cause an electronic processor to control fuel supply to the combustion engine and to control exchange of electrical power between the first electrical machine and the second-electrical machine on the one hand, and on the other hand, at least one electric energy storage device, if present in the drive system.

An electronic control device for a motor vehicle

• wherein said vehicle comprises an output shaft in a combustion engine, an input shaft of a gearbox, a first electrical machine, comprising a stator and a rotor, a planetary gear comprising three components in the form of a sun wheel, a ring gear and a planetary wheel carrier, wherein the output shaft of the combustion engine is connected to a first of said components in the planetary gear, so that a rotation of such shaft leads to a rotation of such first of said components, wherein the input shaft of the gearbox is connected with a second of said components of the planetary gear, so that a rotation of such shaft leads to a rotation of such second of said components, and wherein the rotor of the electrical machine is connected with a third of said components in the planetary gear, so that a rotation of the rotor leads to a rotation of such third of said components, wherein the drive system also comprises a first locking means, which may be moved between a locked position in which two of said components are locked together, so that the three components rotate with the same rotational speed, and a release position in which the components are allowed to rotate at different rotational speeds, wherein the drive system comprises a second electrical machine, with a stator and a rotor, connected to the combustion engine's output shaft between the combustion engine and said first of said components, and a second locking means which may be moved between a locked position, in which the combustion engine's output shaft is locked to the second electrical machine's rotor and said first of said components, and a release position, in which the output shaft of the combustion engine is disconnected from the second electrical machine's rotor and said first of said components, and is allowed to rotate independently of these, and
• wherein said electronic device comprises:
• a storage device;
• an electronic processor operatively coupled to the storage device;
• and
• a computer program product stored in a non-transitory computer-readable medium on the storage device and comprising computer-readable program code portions embodied therein, the computer-readable program code portions configured to comprises computer code to cause an electronic processor to control fuel supply to the combustion engine and to control exchange of electrical power between the first electrical machine and the second-electrical machine on the one hand, and on the other hand, at least one electric energy storage device, if present in the drive system.

A vehicle comprising a drive system,

• wherein the drive system comprises an output shaft in a combustion engine, an input shaft of a gearbox, a first electrical machine, comprising a stator and a rotor, a planetary gear comprising three components in the form of a sun wheel, a ring gear and a planetary wheel carrier, wherein the output shaft of the combustion engine is connected to a first of said components in the planetary gear, so that a rotation of such shaft leads to a rotation of such first of said components, wherein the input shaft of the gearbox is connected with a second of said components of the planetary gear, so that a rotation of such shaft leads to a rotation of such second of said components, and wherein the rotor of the electrical machine is connected with a third of said components in the planetary gear, so that a rotation of the rotor leads to a rotation of such third of said components, wherein the drive system also comprises a first locking means, which may be moved between a locked position in which two of said components are locked together, so that the three components rotate with the same rotational speed, and a release position in which the components are allowed to rotate at different rotational speeds, wherein the drive system comprises a second electrical machine, with a stator and a rotor, connected to the combustion engine's output shaft between the combustion engine and said first of said components, and a second locking means which may be moved between a locked position, in which the combustion engine's output shaft is locked to the second electrical machine's rotor and said first of said components, and a release position, in which the output shaft of the combustion engine is disconnected from the second electrical machine's rotor and said first of said components, and is allowed to rotate independently of these, and
• wherein said vehicle comprises an electronic device comprising:
• a storage device;
• an electronic processor operatively coupled to the storage device;
• and
• a computer program product stored in a non-transitory computer-readable medium on the storage device and comprising computer-readable program code portions embodied therein, the computer-readable program code portions configured to comprises computer code to cause an electronic processor to control fuel supply to the combustion engine and to control exchange of electrical power between the first electrical machine and the second-electrical machine on the one hand, and on the other hand, at least one electric energy storage device, if present in the drive system.