Abstract:
A motor vehicle control system for controlling a motor vehicle with a hybrid drive comprising an internal combustion engine and an electric motor, with a strategy sub-component, a control sub-component and an actuator sub-component. The functional components include at least an internal combustion engine functional component, a transmission functional component, such that the strategy sub-component (8) of the hybrid functional component (4) comprises an operating status prescription module which determines a prescribed value for the operating status of the hybrid drive and transmits the prescribed value to the control sub-component (9) of the hybrid functional component (4) such that the control sub-component (9) of the hybrid functional component (4) comprises a first module (18) and a second module (23).
Abstract:
A method for starting the internal combustion engine, in parallel hybrid vehicles, in which the internal combustion engine is started, during a shift under load in purely electric driving operation, by the electric machine.
Abstract:
A drive assembly for a commercial vehicle, in particular a mobile working machine. The drive assembly comprises an internal combustion engine (1) and a gear system transmission (2) and a starting element for starting and maneuvering. The starting element is a planetary gear system (7) coupled to both the internal combustion engine (1) and to the transmission (2), and also coupled to at least one electric drive (9) for torque support. The starting element is additionally coupled to at least one hydraulic drive (11) for torque support during starting and maneuvering. Furthermore a method for carrying out a starting process with such a drive assembly is proposed, in which, during starting or maneuvering, the supporting torque is applied electrically to a planetary gear system (7) and the electrically produced torque is also assisted by a hydraulically produced torque.
Abstract:
A method of carrying out a shift with traction force interruption during hybrid operation in a parallel hybrid vehicle having an automated transmission. The method comprises the steps of maintaining the coupling between the internal combustion engine (1) and the electric machine (2), eliminating the load before disengaging the old gear, and synchronizing to the new gear by the operation of the electric machine (2).
Abstract:
The invention relates to a method and a device for operating a hybrid drive (1) of a vehicle, comprising a drive train (2) substantially having an internal combustion engine (3), an electrical machine (5), an activatable clutch (4) by means of which the internal combustion engine (3) can be frictionally connected to the electrical machine (5), and a powershift transmission (7). The aim of the invention is to allow a simple and efficient control of a starting process of the internal combustion engine (3) by means of the electrical machine (5) during shifting and to guarantee a high degree of operating ease of the hybrid drive (1). When the vehicle travels electromotively with the clutch (4) open, in order to start the internal combustion engine (3) by means of the electrical machine (5) during a power shift, the control of the electrical machine (5) to generate a reduced dynamic torque curve (26) at the input of the powershift transmission (7) is replaced by a control of the clutch (4) with a dynamic torque curve (29) that acts on the internal combustion engine (3) and has an inverse value.
Abstract:
A method is proposed for controlling and/or regulating a starting process in a hybrid drive arrangement of a vehicle, in which at least one control unit (8) is used by means of which a combustion engine (1), at least one electric machine (3), a transmission (4) and a first clutch (2) arranged between the combustion engine (1) and the electric machine (3) and a second clutch (5) arranged between the electric machine (3) and the transmission (4) are controlled so as to carry out a starting process, such that to change from electric starting to at least partially combustion-engine-powered staring the clutch torque that can be transferred is adjusted to the nominal driving torque so that the torque of the electric machine (3), the torque of the combustion engine (1) and/or the clutch torque of the first clutch (2) are matched. In addition a hybrid drive arrangement of a vehicle with at least one control unit (6) is proposed, by means of which a combustion engine (1), at least one electric machine (3), a transmission (4) and a first clutch (2) arranged between the combustion engine (1) and the electric machine (3) and a second clutch (5) arranged between the electric machine (3) and the transmission (4) can be controlled so as to carry out a starting process, such that to change from electric starting to at least partially combustion-engine-powered staring the clutch torque that can be transferred by the second clutch (5) is adjusted to the nominal driving torque so that the torque of the electric machine (3), the torque of the combustion engine (1) and/or the clutch torque of the first clutch (2) can be matched.
Abstract:
A motor vehicle control system for controlling a motor vehicle with a hybrid drive comprising an internal combustion engine and an electric motor, with a strategy sub-component, a control sub-component and an actuator sub-component. The functional components include at least an internal combustion engine functional component, a transmission functional component, such that the strategy sub-component (8) of the hybrid functional component (4) comprises an operating status prescription module which determines a prescribed value for the operating status of the hybrid drive and transmits the prescribed value to the control sub-component (9) of the hybrid functional component (4), such that the control sub-component (9) of the hybrid functional component (4) comprises a first module (18) which, from the value for the operating status of the hybrid drive prescribed by the operating status prescription module, generates a target value for a drivetrain condition of the hybrid drive, and such that the control sub-component (9) of the hybrid functional component comprises a second module (23) which, on the basis of the value prescribed for the drivetrain condition, selects at least one operative function module which contains control sequences for implementing the target value for the drivetrain condition.
Abstract:
A method for operating a vehicle drive train during a coasting operation. The drive train has an internal combustion engine, an electric machine, a transmission, and a shift element, with a variable transmission capacity, located between the electric machine and a drive wheels. The electric machine is located in the flow of power between the combustion engine and the transmission. The output torque to be delivered to the wheel is a function of the delivery capacity of the shift element which is adjusted in a controlled manner. During the process of shutting down the combustion engine, the speed of the electric machine is adjusted while maintaining at least a partial engagement of the shift element and the speed of the combustion engine is reduced to zero with the electric machine.
Abstract:
A method for starting the internal combustion engine, in parallel hybrid vehicles, in which the internal combustion engine is started, during a shift under load in purely electric driving operation, by the electric machine.
Abstract:
A method for controlling and regulating the input power distribution of prime movers in a power train (1) of a motor vehicle which has one internal combustion engine (2), at least one electric machine (6, 14), at least one clutch (4, 11), the same as one transmission (12), and in which there is at least one control and regulation unit which, on the basis of predetermined, measuring and calculated values, controls and regulates the input power distribution between the internal combustion engine (2) and at least one electric machine (6, 14) with regard to power dynamics of the vehicle, the same as its energy consumption, its emission and its driving comfort. In addition, departing from a signalized input power wish, it is provided that existing nominal operating values for the operation of at least one electric machine (6, 14) is changed to new nominal operating values adapted to the actual input power wish and to changed operating situations of the vehicle and, that to determine the new nominal operating values for at least one electric machine (6, 14), the future maximum and minimum torques and outputs are precalculated, the same as the efficiency degree or losses thereof.