A method of supplying electrical appliances of a vehicle
AssigneeScania CV AB
InventorsJohan LINDSTROM, Mathias BJORKMAN, Mikael BERGQUIST, Niklas PETTERSON
Life of this patent
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Abstract
Disclosed is a method for control of a vehicle with a drive system comprising an output shaft in a combustion engine and a planetary gear with a first and a second electrical machine connected via their rotors to the components in the planetary gear, a supply of electrical power to electrical auxiliary units and/or loads present in the vehicle is carried out, by way of the combustion engine being kept running with its output shaft connected with the second electrical machine's rotor, and the electrical auxiliary units and/or loads being supplied with electrical power via the first electrical machine and/or the second electrical machine.
Claims13
A method for control of a vehicle with a drive system comprising an output shaft in a combustion engine, 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 combustion engine's output shaft is connected with 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 an output shaft of the planetary gear is connected with a second of said components in the planetary gear, for transmission of torque for the vehicle's propulsion, so that a rotation of such shaft leads to a rotation of said second of said components, and the electrical machine's rotor 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 vehicle is controlled, whose drive system also comprises a second electrical machine with a stator and a rotor connected with the output shaft of the combustion engine between the combustion engine and said first of said components and in that the method comprises the following steps in order to supply electrical auxiliary units and/or loads present in the vehicle with electrical power:
- a) continuously running the combustion engine with its output shaft connected with the second electrical machine's rotor;
- and
- b) supplying said electrical auxiliary units and/or loads with electrical power via the first electrical machine and/or the second electrical machine.
(canceled)
A computer program product comprising computer program code for supplying electrical auxiliary units and/or loads present in a vehicle with electrical power,
- wherein the vehicle comprises a drive system comprising an output shaft in a combustion engine, 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 combustion engine's output shaft is connected with 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 an output shaft of the planetary gear is connected with a second of said components in the planetary gear, for transmission of torque for the vehicle's propulsion, so that a rotation of such shaft leads to a rotation of such second of said components, and the electrical machine's rotor 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 vehicle is controlled, whose drive system also comprises a second electrical machine with a stator and a rotor connected with the output shaft of the combustion engine between the combustion engine and said first component,
- 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 comprising computer code to cause an electronic processor to:
- a) continuously run the combustion engine with its output shaft connected with the second electrical machine's rotor;
- and
- b) supply said electrical auxiliary units and/or loads with electrical power via the first electrical machine and/or the second electrical machine.
An electronic control device for supplying electrical auxiliary units and/or loads present in a vehicle with electrical power,
- wherein the vehicle comprises a drive system comprising an output shaft in a combustion engine, 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 combustion engine's output shaft is connected with 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 an output shaft of the planetary gear is connected with a second of said components in the planetary gear, for transmission of torque for the vehicle's propulsion, so that a rotation of such shaft leads to a rotation of such second of said components, and the electrical machine's rotor 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 vehicle is controlled, whose drive system also comprises a second electrical machine with a stator and a rotor connected with the output shaft of the combustion engine between the combustion engine and said first component,
- 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 comprising computer code to cause an electronic processor to:
- a) continuously run the combustion engine with its output shaft connected with the second electrical machine's rotor;
- and
- b) supply said electrical auxiliary units and/or loads with electrical power via the first electrical machine and/or the second electrical machine.
Dependencies are inferred from the claim text.