Method and device for operating a hybrid vehicle
AssigneeRobert Bosch GmbH
InventorJens-Werner Falkenstein
Life of this patent
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Abstract
A method for operating a hybrid vehicle, having at least one first drive unit and one second drive unit, the second drive unit being started by at least one portion of the drive torque provided by the first drive unit in that the clutch situated between the first drive unit and the second drive unit is brought from a disengaged state into a slipping state. To improve the driving comfort of the hybrid vehicle during a start or a stop of the internal combustion engine, at least two clutches are shifted into the slipping state for starting the second drive unit.
Claims17
A method for operating a hybrid vehicle, the method comprising:
- bringing a first clutch, situated between at least one first drive unit and a second drive unit of the hybrid unit, from a disengaged state into a slipping state, wherein the second drive unit is started by at least one portion of the drive torque provided by the first drive unit;
- and
- for starting the second drive unit, shifting at least two clutches into a slipping state, wherein the at least two clutches are situated between the first drive unit and the second drive unit.
A method for operating a hybrid vehicle, the method comprising:
- bringing a clutch, situated between at least one first drive unit and a second drive unit of the hybrid unit, from a disengaged state into a slipping state, wherein the second drive unit is started by at least one portion of the drive torque provided by the first drive unit;
- and
- for starting the second drive unit, shifting at least two clutches into a slipping state wherein the first clutch, which is operated in slipping mode, is disengaged again at least partially from the slipping state on reaching the rotational speed equality between the input side and the output side of the clutch, and
- wherein a rotational speed of the second drive unit is evaluated to detect the end of the start when the clutch is at least partially disengaged.
A method for operating a hybrid vehicle, the method comprising:
- bringing a clutch, situated between at least one first drive unit and one second drive unit, from an engaged state into a slipping state, wherein the hybrid vehicle includes the at least one first drive unit and the one second drive unit, in which the second drive unit is stopped by at least one portion of the drive torque provided by the first drive unit;
- and
- shifting at least two clutches into a slipping state to stop the second drive unit, wherein the at least two clutches are situated between the first drive unit and the second drive unit.
A device for operating a hybrid vehicle, comprising:
- a first arrangement to bring a clutch, situated between at least one first drive unit and one second drive unit, from a disengaged state or an engaged state into a slipping state, wherein the hybrid vehicle includes the at least one first drive unit and the one second drive unit, in which the second drive unit is started or stopped by at least one portion of the drive torque provided by the first drive unit;
- and
- a shifting arrangement to shift at least two clutches into a slipping state to start or stop the second drive unit, wherein the at least two clutches are situated between the first drive unit and the second drive unit.
Dependencies are inferred from the claim text.