Robert Boschgmbh

Peter Ahner

Manfred Ackermann

Siegfried E Schustek

Helmut Harer

Gerhard Koelle

Ferdinand Grob

Joachim Schadow

Klaus Ries-Mueller

Werner Hess

Udo Sieber

Werner Harter

Peter Dominke

Chi-Thuan Cao

Michael Lehner

Oliver Kaefer

Martin Eisenhardt

Harald Tschentscher

Peter Blessing

Ngoc-Thach Nguyen

Helmut Janetzke

Herbert Lohner

Thorsten Allgeier

Wolfgang Pfeiffer

Wolfgang Haas

Peter Pfeffer

Herbert Labitzke

Michael Bildstein

Juergen Glauning

Andreas Frank

Felix Reber

Steffen Waldenmeier

Robert Schenk

Siegbert Wessels

Klaus Harms

Bo Yuan

Elmar Dilger

Torsten Mangold

Peter Zegelaar

Uwe Kirberg

Thomas Sauer

Peter Kleindieck

Andreas Bisanz

Richard Deptner

Peter Glauning

Willibert Schleuter

Ute Rollmann

Siegfred Schustek

A method for the fail-safe operation of a hybrid vehicle having an internal combustion engine, an electric motor, and additional vehicle assemblies. A substitute measure that then still allows the vehicle to be operated under emergency running conditions is initiated if a vehicle assembly fails. A performance quantity that is characteristic of the driving-dynamics situation in which the vehicle finds itself is recorded prior to initiating the substitute measure, and is compared to at least one limit value. The substitute measure is initiated if the limit value is exceeded or not attained. A device which includes a device for implementing such a method is also provided.

Method for the fail-safe operation of a hybrid vehicle for the controlled initiation of a substitute measure allowing an operation of the vehicle under emergency conditions, and device for implementing this method

A drive device for a vehicle, an electric machine and an axle which is drivable by the electric machine. A disengageable mechanical coupling is provided between the drivable axle and the electric machine. This coupling is designed as a shiftable freewheel coupling.

Device and method for operating a drive having an electrically drivable axle

A method and device for detecting and stabilizing a fishtailing trailer using wheel forces. In particular, a method for stabilizing a vehicle combination made up of a towing vehicle and a trailer in which lateral forces acting on at least one wheel or at least one tire are ascertained with the aid of a sensory system that detects wheel forces or tire forces, the existence of a fishtailing movement of the trailer is detected from the ascertained lateral forces and, in the event of a detected fishtailing movement of the trailer, a braking intervention and/or steering intervention is performed.

Method and device for detecting and stabilizing a fishtailing trailer using wheel forces

A method of operating a cooling and heating circuit of a motor vehicle driven by an internal combustion engine includes providing a first cooling medium path through a bypass conduit, a second cooling medium path through a main cooler of the internal combustion engine, a third cooling medium path through a heating heat exchanger, subdividing the cooling medium paths by an electrically actuated valves and forming cooling medium flows by an electrically driven pump, controlling both the valves and the pump by an electronic control unit in dependence on operational and environmental parameters as well as nominal values, reversing a feeding direction of the electrically operated pump in a first operational phase of the internal combustion engine at low temperatures of the internal combustion engine and turned on first cooling medium path, and feeding the cooling medium by the pump in a lower region of the internal combustion engine.

Method of operating a cooling-and heating circuit of a motor vehicle, and a cooling-and heating circuit for a motor vehicle

A method for operating an internal combustion engine () installed in a motor vehicle having controlled intake and exhaust valves and that is coupled in fixed fashion with an electrical machine () charging an electrical energy accumulator, in particular a battery (), wherein, in order to enable the electrical machine to perform recuperation on overrun or during braking operation of the internal combustion engine (), the drag power or braking power of the internal combustion engine is regulated via intervention in the valve actuation process so that a braking or deceleration behavior of the motor vehicle is obtained that is familiar to the driver of the motor vehicle, wherein the valve actuation process and a regulation of the generator and motor operation of the electrical machine () are carried out as a function of the state of charge, preferably of at least four levels of the state of charge, of the energy accumulator (), and wherein the valve actuation process and the regulation of the electrical machine () are coupled with a braking management system of the motor vehicle.

Method for operating an internal combustion engine

A drive system for motor vehicles, in particular having an internal combustion engine () as a main drive, a driving clutch (), a transmission () and at least one drive axle () in the main drive train (), furthermore having a secondary drive train () and having secondary assemblies () which can be disposed in the secondary drive train (), the secondary drive train () being capable of being coupled to the main drive train, and having an electric machine operating as a starter generator (), characterized in that the secondary drive train () has its own secondary assembly drive () which can be coupled to the starter generator (), and that the secondary assembly drive () and the starter generator () can be coupled to the driving axle () of the motor vehicle either individually or jointly, with or without the main drive (), to drive the motor vehicle.

Drive system for motor vehicles

The invention relates to a drive train for a motor vehicle, having an internal combustion engine ( ), having an electric machine ( ), which upon starting of the engine ( ) generates a torque, and having a clutch ( ), which is disposed between the engine ( ) and a gear train ( ) by way of which a torque generated by the engine ( ) can be transmitted to at least one vehicle drive wheel. A mechanism ( ) is provided, which upon starting of the engine can actuate the clutch ( ) in such a way that a first part of the torque generated upon starting of the engine by the electric machine ( ) is transmitted to the at least one vehicle drive wheel, and a second part of the torque generated by the electric machine and sufficient for starting the engine is transmitted to the engine.

Drivetrain for a motor vehicle

The invention relates to a pulse starting method for an internal combustion engine in which, during a wind-up phase, a flywheel mass is accelerated in a rotary driven fashion and then during a coupling phase, the rotating flywheel mass is coupled to a rotatably supported shaft of the engine, preferably the crankshaft, in order transmit torque, which is distinguished by the fact that during the wind-up phase ( ) and/or the coupling phase ( ), the rotational speed progression of the flywheel mass ( ) is evaluated, that based on this evaluation, a deduction is made as to whether a successful start of the engine ( ) is possible, and that if a successful start is not expected, the shaft ( ) is used to bring the engine ( ) into an operating position that is favorable for a subsequent second starting attempt.

Pulse start method and pulse start device for an internal combustion engine

In a drive train assembly for a motor vehicle, which includes successively arranged an internal combustion engine, a starter clutch, an electrical machine a drive clutch, and an automatic transmission, preferably an automated manual transmission, a common double clutch positioner is assigned to the two clutches, which enables a selective setting of the applicable status (open or closed) of the clutches by assumption of a corresponding switching position.

Drive train assembly for a motor vehicle, and method for controlling the operation thereof

An electrical machine apparatus for starting an internal combustion engine and supplying voltage to an on-board electrical system of a motor vehicle having a main gear, includes an electrical machine, a planetary gear through which the electrical machine is coupleable to the engine, the electrical machine being switchable over from a motor mode to a generator mode, the gear being switchable over for adjusting an rpm of the electrical machine, the electrical machine being coupleable to a drive train of the engine via the gear so that for synchronizing the main gear, speed-changing stages in the gear and thus a moment of mass inertia of the electric machine are selectable in accordance with a desired rpm adaptation of the drive train.

Auxiliary generator set with variable transmission for an internal combustion engine

The invention relates to a starting/driving unit for an internal combustion engine (VM) of a motor vehicle with at least two starting methods, which has a clutch (K) between the crankshaft (KW), the engine (VM), and the vehicle transmission (FG) as well as an electric machine which is connected to the engine (VM) by way of the clutch (K). With the electric machine, the two starting methods can be executed in an optimal fashion solely by virtue of the fact that through rotation of the crankshaft by means of the electric machine, each starting method is preceded by a start clearing phase in which the starting conditions are detected when the clutch is engaged, a decision is made as to the subsequent operating phases (direct start phase, positioning phase, preinjection phase, impulse start phase) and their starting parameters are determined.

Starting and driving unit for an internal combustion engine of a motor vehicle

A steer-by-wire steering system comprised of an electronically regulated steering positioner mounted to the steering gear of the front axle or to both front wheels of a vehicle together with an electronic steering regulator and a feedback actuator. A sensor senses the driver's selected direction from the steering wheel. Road feedback can be relayed to the driver through a feedback actuator via the steering wheel. The loss of road feel caused by the absence of the steering column, which normally strongly influences the driver's directional wish, is recreated by the feedback actuator.

Steer-by-wire steering system for motorized vehicles

The invention relates to a drive assembly of a motor vehicle, having a internal combustion engine and an electrical machine coupled or capable of being coupled to a crankshaft of the engine, wherein the electrical machine can be switched to motor and generator modes, and having an electronic control unit for controlling direct injection and ignition of the engine. It is provided that at the start of the engine (,) the crankshaft (,) can be put in a predeterminable starting position via the electrical machine (,) switched for motor operation, and upon attaining the starting position of the crankshaft (,), the ignition of the fuel injected into a starting cylinder (,) is effected, and via the electrical machine (,), a torque can be exerted on the crankshaft (,) during the entire starting operation.

Drive mechanism for a motor vehicle

Starter for an internal combustion engine

A method for assisting the steering forces to be produced in a vehicle by means of an electric motor acting on the steering column is proposed. This method is characterized in that the additional torque produced by the electric motor is controlled in dependence upon the steering torque to be produced for actuating the steering and upon the steering torque supplied overall. The additional torque is thus dependent on the torque which is produced at the steering wheel by the driver and, in addition, on the torque which is supplied by the steering arrangement on the wheels to be steered. The electric motor is controlled by a controller 5 via an actuator 6, an additional torque M*.sub.R, which is dependent on the vehicle speed, being input into the controller. As characteristic shaper, the controller has a dead-time element by which the control intervenes only from a certain limit value of the torque M*.sub.R input into the controller 5. This results in a particularly good contact with the roadway for the driver in combination with optimal assistance to the steering forces.

Method for assisting the steering forces to be produced in a vehicle

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Boeblingen, Germany

Peter Ahner