Bayerische Motoren Werke Aktiengesellschaft

Michael Etzel

Sebastian Liebert

Ulrich Ohnemus

Michael Friedrich

Roland Gollmer

Benjamin Kluge

Ferdinand Wiesbeck

Andreas Rank

Jochen Schroeder

Christian Glatz

A control unit is provided for a hybrid drive that includes an internal combustion engine and an electric machine. The control unit is configured to cause one or more drag torque reduction measures of the internal combustion engine to be terminated in preparation for firing the internal combustion engine. In addition, the control unit is configured to cause the electric machine to at least partly compensate for an increase in the drag torque of the internal combustion engine caused by the termination of the one or more drag torque reduction measures.

Control unit and method for operating a hybrid drive having an internal combustion engine with reduced drag torque

A controller and a method for a hybrid drive, which includes an internal combustion engine and an electrical machine are provided. The internal combustion engine includes adjustment devices that deactivate the intake and exhaust valve opening actuation. The controller is designed in such a way that, in the case of at least one specified condition (such as regeneration during unfired overrun or in the case of electric travel, in particular in the case of operation with high activation frequency of the internal combustion engine, e.g., in charge sustaining or HEV operation), the intake and exhaust valves are kept at least approximately (preferably completely) closed at least approximately simultaneously while the internal combustion engine is unfired. The internal combustion engine must be connected to the electrical machine. If there is a disconnect clutch, the disconnect clutch is brought into the closed state or remains closed.

Control unit and method for operating a hybrid drive

A clutch device includes at least one first blocking element, at least one second blocking element at least one first actuation element, and at least one second actuation element. The second blocking element in a second release position is arranged completely outside of a recess and in the second blocking position engaging in the second recess by passing through the second through-opening in order thereby to fix together rotationally the components in a second rotational direction opposite to the first rotational direction.

Shiftable bidirectional freewheel clutch device, and drive device for a motor vehicle comprising the clutch device

A hybrid drive includes a control unit, an internal combustion engine, an electrical machine and a dual clutch transmission having an output shaft. The dual clutch transmission includes a first sub-transmission and a second sub-transmission, each couplable to the output shaft. A drive shaft of the internal combustion engine is couplable to a first input shaft of the first sub-transmission via a first clutch and to a second input shaft of the second sub-transmission via a second clutch. The control unit is configured to permit the second clutch to be closed even when the hybrid drive is being operated purely electrically so that the driveshaft of the internal combustion engine is driven by the electrical machine. A control unit and a method for operation of a hybrid drive are also provided.

Control unit and method for operating a hybrid drive with a dual clutch transmission

A control system has at least one electronic control unit for controlling an internal combustion engine in a hybrid vehicle, which records at least the vehicle speed and the driver's desired driving performance and the driving performance specified by a safety control system or a driver assistance system. The control unit is designed such that, below a pre-defined vehicle speed threshold and/or in the event of recognition of an urban area, while in a purely electric driving mode, it only engages the internal combustion engine when the current desired driving performance exceeds a pre-defined upper threshold, preferably once the maximum tractive force at the wheel for purely electric driving is at least reached.

Control system comprising at least one electronic control unit for controlling an internal combustion engine in a hybrid vehicle

A drive machine coupling device for a motor vehicle with a hybrid drive is provided. The device includes an input shaft designed to receive the drive power provided by a first drive machine, an output shaft designed to output the drive power, and a first coupling device arranged between the input shaft and the output shaft. By way of the first coupling device, a torque can selectively be transmitted from the input shaft to the output shaft. The coupling device can be directly coupled to the output shaft. An additional coupling device is arranged between the input shaft and the output shaft, and can be directly coupled to the output shaft, such that a torque can selectively be transmitted from the input shaft to the output shaft. The additional coupling device is arranged parallel to the first coupling device with respect to the torque transmission.

Internal combustion engine decoupling device of a PHEV transmission unit

A hybrid drive for a hybrid vehicle is provided. The hybrid drive includes an internal combustion engine having a crankshaft, and an electric motor. The electric motor is coupled to the crankshaft of the internal combustion engine by way of an automatically shifting transmission.

Hybrid drive for a hybrid vehicle

A drive system for a hybrid drive in a motor vehicle is provided. The drive system includes a drive machine with a rotor and a stator; a planetary gear set with a sun gear, a ring gear and at least one planetary gear mounted on a planetary carrier; and a coupling system, by way of which at least one other drive machine can be coupled to the drive system. The ring gear can be connected to the rotor in order to transmit drive power and is arranged inside the rotor in the radial direction. In particular, the sun gear of the drive system is non-rotatably mounted in relation to the stator; the planetary carrier is configured as a transmission output shaft; and a power take-off shaft, which is concentric with the ring gear, can be connected to the planetary carrier and to the coupling system.

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Munich, Germany

Michael Etzel