摘要:
The invention relates to a method for operating a drive device (1) of a motor vehicle, having an internal combustion engine (2), an electric machine (3), and a dual-clutch transmission (4). The dual-clutch transmission (4) has two clutches (K1, K2), by means of which the transmission can be connected to the internal combustion engine (2). At least the internal combustion engine (2) is actuated in a driving operation in order to generate a target drive torque, and the clutches (K1, K2) are actuated in opposite directions for a gear shift. During a gear shift, the electric machine (3) which is connected to the dual-clutch transmission (4) without a clutch is actuated such that the electric machine completely or partly generates the target torque at least temporarily.
摘要:
A control device for a vehicle includes a fuel cell, a motor-generator, a power unit, a transmission, a motor-generator control unit configured to perform a power control on the motor-generator based on a driver request torque, and a generated power control unit configured to control the generated power of the fuel cell based on a load of the fuel cell including the motor-generator. The motor-generator control unit performs a shifting power control for decreasing a rotation speed of the motor-generator during an upshift of the transmission, and a power control on the motor-generator based on a limit torque of the motor-generator during the shifting power control. The limit torque of the motor-generator being calculated based on an actual generated power of the fuel cell per unit time and an acceptable power of the power unit per unit time.
摘要:
A method for controlling a shift actuator with a sliding gear for a gearbox comprising a control element (2) for controlling a shift fork (6) responsible for disengaging and engaging gears on a shaft of the gearbox that receives the torque from a traction machine powered by the electrical system of the vehicle, said control element being positioned upstream from a mechanical spring-assistance system and regulated into position by a DC actuator motor (1), characterised in that the voltage applied to the actuator motor (1) is temporarily raised above the base voltage of the electrical system, during the operations of disengaging and engaging the gears.
摘要:
The invention relates to a method for operating, in particular shifting, a transmission (1), in particular for motor vehicles, which transmission comprises at least two friction-locking shifting devices (10, 20, 30, 40), which each have an input side (11, 21, 31, 41) and an output side (13, 23, 33, 43), wherein a slip value (S) can be defined on the basis of a difference between a rotational speed of the input side (11, 21, 31, 41) and a rotational speed (11, 21, 31, 41) of the output side, and wherein each of said shifting devices (10, 20, 30, 40) has at least one load shifting state, in which the input side (11, 21, 31, 41) and the output side (13, 23, 33, 43) are connected to each other in order to transmit torque, and an idle shifting state, in which the input side (11, 21, 31, 41) and the output side (11, 21, 31, 41) are substantially not connected to each other, and wherein a first of said shifting devices (10) is shifted from the load shifting state thereof to the idle shifting state thereof or vice versa and a second of said shifting devices (20) is shifted from the idle shifting state thereof to the load shifting state thereof or vice versa in dependence on the slip value (S20) thereof only when said slip value (S20) has a different sign after a zero crossing, in particular in the sense of a slip reversal, than between the shifting of the first shifting device (10) and the zero crossing.
摘要:
A method for gearchange in a gearbox of a vehicle driving, said vehicle having a propulsion system comprising a combustion engine with an output shaft (2a), a gearbox (3) with an input shaft (3a), an electric machine (9) comprising a stator and a rotor, and a planetary gear comprising a sun gear (10), a ring gear (11) and a planet wheel carrier (12). The gearchange is carried out with the components of the planetary gear allowed to rotate with different rotational speeds and is finished by interlocking them. The combustion engine is controlled with respect to rotational speed during the gearchange towards the rotational speed required for the interlocking.
摘要:
The invention relates to a method for controlling a drive train of a motor vehicle with an internal combustion engine (1), an electrical machine (3) operable in motor mode and in generator mode, a clutch (2) arranged between the internal combustion engine (1) and the electrical machine (3), and an automatic gearbox (5) arranged between the electrical machine (3) and the drive wheels (6), wherein a gear change in the automatic gearbox (5) can be initiated manually by the driver. The method is characterized in that during overrun mode of the motor vehicle, in which the electrical machine (3) is operated in generator mode, the following steps are performed, after a manual initiation of the gear change from a source gear into a target gear by the driver: - the clutch (2) is at least partially disengaged if it is not already disengaged; - the speed (nVM) of the internal combustion engine (1) is brought to a speed level (nZ) corresponding to the target gear and to the current speed of the motor vehicle and continues to be regulated; - the gear change is performed in the automatic gearbox (5); - the clutch (2) is engaged upon reaching a synchronous speed (nVM, nE) of the internal combustion engine (1) and the electrical machine (3). The recuperation can thereby be preserved during the gear change and the driver obtains feedback corresponding to that of a non-hybridized or non-recuperative motor vehicle after his initiation of the gear change.
摘要:
Method for shifting an automatic hybrid transmission without interruption caused by tensile forces, said hybrid transmission comprising two electrical machines (EMA, EMB) and exclusively form-fit shift elements (SE1-SE10) as its shift elements, wherein by closing each of the shift elements (SE1-SE10) in each case one transmission element can be coupled to another transmission element. At least one of the form-fit shift elements (SE1-SE10) is closed to engage a target gear. The transmission elements allocated to the at least one shift element (SE1-SE10) to be closed are synchronised prior to closure by corresponding control of at least one of the two electrical machines (EMA, EMB).