摘要:
A method is employed for starting an internal combustion engine in a hybrid vehicle drive which is driven by an electric motor. A speed of the internal combustion engine is adjusted to a target speed. The internal combustion engine speed exceeds the target speed over a predefined time by a predetermined speed differential.
摘要:
A method and a device for controlling a hybrid vehicle drive. The device contains a multiplicity of control parameter sets with different set point charge states for a high performance battery of the electric motor. The set point charge states are assigned to a respective operating mode of the vehicle. A definition device for defining a current operating mode of the vehicle, as a result of which a control parameter set which corresponds to the defined current operating mode of the vehicle can be used to control a charge mode of the high performance battery of the electric motor with a corresponding set point charge state.
摘要:
A system and method for controlling a hybrid vehicle drive has a device for detecting a charging power of a heavy-duty battery for an electric motor, a device for determining at least one fuel consumption parameter for several different transmission gear positions at the detected charging power and for determining an optimized gear position in which the determined fuel consumption parameter indicates an optimized fuel consumption. The determining device controls the gear position of the transmission to the determined optimized gear position by via a transmission control device.
摘要:
A method operates a drive train the is formed of an internal combustion engine, an electric motor, a transmission and a first clutch that connects the internal combustion engine to the electric motor. During an operating state for applying a current requested torque to a transmission input with the electric motor switched on and the internal combustion engine switched off, the internal combustion engine is connected into the circuit by increasing the torque applied to the drive train by the electric motor before the internal combustion engine starts, in such a way that only the current requested torque is applied to the transmission input. Excess torque is extracted from the drive train by actuating the first clutch and applying the excess torque to the internal combustion engine in order to accelerate it. The internal combustion engine is started when its starting state is reached.
摘要:
A device and method for heating a positive crankcase ventilation system in a hybrid vehicle includes a ventilation device, provided on a crankcase, and a supercooling cycle for cooling power electronics for an electric motor of the hybrid vehicle. The ventilation device is heatable by way of the supercooling cycle in order to prevent icing of the ventilation device.
摘要:
A device and method for heating a positive crankcase ventilation system in a hybrid vehicle includes a ventilation device, provided on a crankcase, and a supercooling cycle for cooling power electronics for an electric motor of the hybrid vehicle. The ventilation device is heatable by way of the supercooling cycle in order to prevent icing of the ventilation device.
摘要:
A method implements a starting process for an internal combustion engine which has a drive unit and a transmission with at least two transmission input shafts and a multiple clutch device, in particular a double clutch device. During the starting process, the first gear is engaged in a first clutch of the multiple clutch device and is activated, while the second gear speed is engaged in a second clutch of the multiple clutch device but not activated. During the starting process, a current velocity is compared with a predefinable reference velocity, and when the reference velocity is reached a control unit causes the first clutch to be opened and thus causes the first gear to be deactivated while, in parallel with this, the second clutch is closed and the second gear is thus activated.
摘要:
A gearshift mechanism for a motor vehicle with hydraulically actuated multiple clutch, particularly a twin clutch, has a first gear input shaft to drive a first group of gears and a second gear input shaft to drive a second group of gears. The two gear input shafts are each assigned a clutch unit being coaxial to one another. A stationary housing accommodates the two clutch units. At its end face, the housing can be closed off by a housing cover that has a central opening through which a drive hub of a clutch cage is guided. The housing cover is provided with a bearing flange around the central opening, on the outside of which the clutch cage is supported. This advantageously supports the clutch on the housing and makes it possible to achieve a support effect for a dual mass flywheel or the crankshaft end of the internal combustion engine.
摘要:
A hybrid vehicle having a rear-mounted internal combustion engine, an electric energy accumulator, and at least one electric machine which is provided as a generator for charging the electric energy accumulator during an energy recovery phase and respectively as at least an additional drive to the internal combustion engine during a drive phase, wherein the internal combustion engine drives the rear axle of the hybrid vehicle, and wherein the electric machine, or each electric machine is provided at a distance from the rear axle, in particular in the region of the front axle.
摘要:
A device for sealing a double clutch transmission of a motor vehicle, with a transmission housing, in which are arranged a clutch chamber with clutch oil and a double clutch, a transmission chamber with transmission oil and a double clutch transmission wheel set and two co-axial drive shafts disposed, one inside the other. One drive shaft is an interior central shaft which extends inside the transmission chamber from the end of the second hollow drive shaft. The two drive shafts each have a sealing element to seal the clutch chamber from the transmission chamber. A mounting component is situated inside and fixed to the transmission housing to support two adjacent sealing elements. A first sealing element forms a seal radially on the hollow drive shaft and a second sealing element forms a seal radially on the central drive shaft to provide a reliable seal and offer a simple ventilation and leakage detection.