Patent application number | Description | Published |
20090037080 | Pressure-maintaining function in a fully hybrid drive - A method for maintaining and/or adjusting a system pressure in a fuel injection system of an internal combustion engine, in which the internal combustion engine is a part of an hybrid power train, which includes in addition at least one further drive. A system pressure in a reservoir element of the fuel injection system is monitored using a pressure sensor. In operating modes in which the internal combustion engine is shut down and/or is separated from the hybrid power train, the maintaining or the adjusting of the system pressure takes place via a pressure-regulating valve. The activation of the pressure-regulating valve takes place directly or indirectly via a control unit or a vehicle control unit or a clutch control unit. | 02-05-2009 |
20100229831 | METHOD FOR ADJUSTING A FUEL PRESSURE - A method is provided for adjusting a fuel pressure in a high pressure fuel accumulator of an accumulator injection system of an internal combustion engine as a first drive motor which, together with a second drive motor, is situated in a drive train, in which variable torque contributions of the internal combustion engine and of the second drive motor are superposed, an actual value of the fuel pressure, which sets in in response to a lower torque contribution of the internal combustion engine in the high pressure fuel accumulator, deviating from a setpoint value specified for higher torque contributions and at which the actual value, in response to an increase in the torque contribution from the lower value to the higher torque contribution of the internal combustion engine being adjusted to its higher setpoint value. The method stands out in that the adjustment is performed so that a rate of a change in the actual value does not exceed a specified boundary value during the adjustment. A control device equipped to perform the method is also provided. | 09-16-2010 |
20110054723 | METHOD AND SYSTEM FOR CONTROLLING A VEHICLE HAVING A HYBRID DRIVE - The invention relates to a method and an arrangement for controlling a vehicle with a hybrid drive, wherein during the driving mode an internal combustion engine ( | 03-03-2011 |
20110247337 | HYBRID DRIVE SYSTEM - The invention relates to a hybrid drive system comprising an internal combustion engine ( | 10-13-2011 |
20120095665 | METHOD AND SYSTEM FOR CONTROLLING A VEHICLE HAVING A HYBRID DRIVE - In a method for controlling a hybrid drive which is driven by an internal combustion engine designed as a first drive unit, and by a second drive unit, the internal combustion engine and the second drive unit contribute individually or jointly to the drive of the vehicle, and pollutant emissions are kept at the lowest possible level in all operating states of the hybrid drive. At least one control function for the internal combustion engine is carried out by a coordination unit which determines the point in time at which the internal combustion engine or the drive unit alone, or the internal combustion engine and the drive unit simultaneously, contribute to the drive of the vehicle. | 04-19-2012 |