摘要:
A method is provided for monitoring the torque distribution in multiple drive systems, e.g., in hybrid drives. The hybrid drive includes at least two individual drives which are controlled via an engine control unit, in which a torque distribution of a setpoint torque MSETPOINT to the at least two individual drives takes place. After the torque distribution, the formation of a resulting torque MRES takes place which is compared continuously with a torque before the torque distribution.
摘要:
A method for controlling a vehicle drive unit, which comprises at least two individual drives, at least one of which is able to provide a negative torque. A vehicle control unit is provided, within which a continuous torque comparison is performed within a monitoring level. A permissible torque is ascertained therein. Using a torque range checker it is established whether ascertained setpoint torques lie within torque ranges of the at least two individual drives.
摘要:
A method for determining the beginning of a start phase of an internal combustion engine in a hybrid vehicle, in which a second drive unit drives the hybrid vehicle, the internal combustion engine being started upon reaching a certain drive torque of the second drive unit. In order to always be able to achieve the maximum solely electric driving range of the hybrid vehicle using the second drive unit and simultaneously improve the driving comfort of the hybrid vehicle by optimizing the internal combustion engine start triggering, the internal combustion engine is started when a predicted drive torque of the second drive unit is less than or equal to the drive torque, as instantaneously measured and increased by a torque reserve, of the second drive unit.
摘要:
In a method for operating a hybrid drive device for a motor vehicle having at least one internal combustion engine, another drive unit and a separating clutch, to start the internal combustion engine the separating clutch is engaged, and during the start of the internal combustion engine, a setpoint rotational speed is predefined for the other drive unit. This setpoint rotational speed for the other drive unit is determined with the aid of a drivetrain model.
摘要:
A method for compensating a transmitted torque of a clutch between a regulated drive motor, in particular an electromotor, and a combustion engine in the transition to an operation using only the drive motor, to hybrid operation in which an overall torque is supplied jointly by the drive motor and the combustion engine, and the engine speed of the drive motor is controlled with the aid of a manipulated variable; to implement the transition, the combustion engine is dragged by coupling it with the drive motor with the aid of a proportional clutch having a controllable transmitted torque, and the control of the engine speed of the drive motor is implemented as a function of the transmitted torque using which the drive motor is coupled with the combustion engine.
摘要:
A method is provided for regulating the rotational speed in a hybrid drive of a vehicle having a first drive source, in particular an internal combustion engine, and a second drive source, in particular an electric motor. A rotational speed variable which is a function of a rotational speed of the first drive source and of a rotational speed of the second drive source is determined. The rotational speed of the first drive source or of the second drive source is regulated based on the rotational speed variable for oscillation reduction. The rotational speed variable used is preferably a mean value of the two rotational speeds. The two rotational speeds may be weighted on the basis of inertia in order to form the mean value as well.
摘要:
In a method for controlling a vehicle drive unit having at least two individual drives and a vehicle control unit, a continuous torque comparison between a permissible torque MZul and a further torque is performed by the control unit. The permissible torque MZul is continuously compared to setpoint torques Msetpoint,V and Msetpoint,E for the least two individual drives.
摘要:
In a method for engaging a clutch having at least one previously known touch point position, the clutch is engaged according to a speed profile, the course of which depends on at least one of the previously known touch point positions.
摘要:
In a method for operating a hybrid drive device for a motor vehicle having at least one internal combustion engine, another drive unit and a separating clutch, to start the internal combustion engine the separating clutch is engaged, and during the start of the internal combustion engine, a setpoint rotational speed is predefined for the other drive unit. This setpoint rotational speed for the other drive unit is determined with the aid of a drivetrain model.
摘要:
A method for operating a hybrid drive system, in particular of a motor vehicle, having at least one electric machine and one internal combustion engine, a disconnecting clutch being provided between the electric machine and the internal combustion engine and a torque converter having a turbine wheel being provided between the electric machine and a hybrid drive output, the disconnecting clutch being engaged for starting the internal combustion engine. It is provided that, as a function of the rotational speed of the turbine wheel of the torque converter, a rotational speed is predefined for the electric machine such that no sudden torque change occurs at the hybrid drive output when the internal combustion engine is started.