Robert Boschgmbh

Getrag B.v. & Co. Kg

Manfred Hellmann

Hermann Winner

Albrecht Irion

Ralph Lauxmann

Jens-Werner Falkenstein

Ernst Wild

Dirk Samuelsen

Alexander Maass

Wolfgang Hermsen

Andrea Steiger-Pischke

Frank Steuernagel

Peter Khatchikian

Thilo Beck

Bernhard Lucas

Mario Kustosch

Rene Schenk

Karl-Heinz Senger

Helmut Wiss

Hermann Mayer

Uli Christian Blessing

Torsten Heidrich

Thorsten Juenemann

Stefan Witte

Manfred W Meissner

Thomas Hoffmeister

Mykhaylo Klymenko

Thilo Leineweber

Felix Reber

Boyke Richter

Markus Hagemann

Markus Vogelgesang

Robert Erhart

Peter Deuble

Benjamin Klotz

Carsten Schroeder

Sasha Dreschmann

Simone Kriso

Sascha Dreschmann

Christian Vienken

Kai Moegle

Dieter Hoetzer

Roland Sarrazin

Andre Kroehnert

The invention relates to a device for operating a voltage converter (), in particular a DC converter, of a motor vehicle, which voltage converter has at least two parallel-connected converter strands () which are connected between a high-voltage side () and a low voltage side () of the voltage converter () for converting the voltage, having at least one cooling device () carrying a coolant () and assigned to the converter strands (), wherein each of the converter strands () is assigned at least one temperature sensor (), comprising the following steps: a) detecting an input voltage, an output voltage and an operating current of each converter strand (), b) detecting a current converter strand temperature by means of the respective temperature sensor (), c) determining a respective coolant temperature as a function of the values detected in steps a) and b), d) comparing the two determined coolant temperatures (T_1, T_2) with each other and e) determining the serviceability of the temperature sensors () on the basis of the result of the comparison.

Method and device for operating a voltage converter

A hybrid drive system for a motor vehicle includes an internal combustion engine and at least one electric motor, each driving wheels of the motor vehicle. The internal combustion engine is coupled to the corresponding wheels via a first multispeed transmission. The electric motor is coupled to the corresponding wheels via a second multispeed transmission.

Hybrid drive system

The invention relates to an energy storage device and a method for operating an energy storage device comprising a plurality of energy storage modules. In order to adjust the output voltage to the energy storage device, one or more energy storage modules is/are connected in series. According to the invention, the series-connected energy storage modules are selected in accordance with the state of charge and at least one other operating parameter in order to be able to use the individual energy storage modules in a particularly efficient manner.

Electric energy storage device and method for operating an electric energy storage device

A method for driving a hybrid vehicle during a load reversal includes: the application of a first torque on a first hybrid vehicle axle during an acceleration reversal; and the application of a second torque on a second hybrid vehicle axle during the acceleration reversal, a direction of action of the second torque being opposite to a direction of action of the first torque.

Method for driving a hybrid vehicle in a load reversal

A method is described for operating a hybrid drive system which has a first drive unit, in particular an internal combustion engine, and a second drive unit, in particular an electric motor, which includes activating the first drive unit and the second drive unit in such a way that the first drive unit and the second drive unit each provide an output variable for the purpose of providing a total output variable; limiting the output variable provided by the first drive unit to a limiting value which is less than a maximum output variable which may be provided by the first drive unit; canceling the limitation if the output variable provided by the second drive unit corresponds to a maximum output variable which may be provided by the second drive unit.

Method for operating a vehicle having a hybrid drive system as well as a drive system and a vehicle

A method and a device for operating a vehicle having a hybrid drive are described, in which a first drive unit and a second drive unit contribute jointly or individually to the drive of the vehicle, the first drive unit driving the second drive unit in the manner of a generator for charging an energy storage device, the first drive unit and the second drive unit being separable by a drive train element transferring a torque of the first drive unit. In a method in which it is ensured that the vehicle may continue to drive safely even in the event of a defect in a drive train element between the first drive unit and the second drive unit, the torque portion used for charging the energy storage device is reduced to a minimum torque, while the torque excess, which is reduced in the event of a defect in the drive train element but still exceeds the minimum torque, is utilized to propel the vehicle.

Method and device for operating a vehicle having a hybrid drive

A hybrid drive () of a motor vehicle (). In the motor vehicle (), an electric motor () acts as the driving force on a first axle () and an internal combustion engine () as a driving force on a second axle (). In an operation, in which only the electric motor () acts on the first axle (), a check is made to determine whether the internal combustion engine () is to be started to drive the second axle (), wherein a first set of conditions for a road start, taking into account first criteria, and a second set of conditions for a starter motor start, taking into account second criteria, are defined and checks are made independently of one another to determine whether the first set of conditions for a road start or the second set of conditions for a starter motor start has been met.

Method for operating a hybrid drive

A method for operating a drive device of a motor vehicle, which includes at least one internal combustion engine and at least one electric machine, a driving resistance, in particular an uphill gradient, being ascertained and the internal combustion engine being operated as a function thereof. The internal combustion engine is operated as a function of a driving resistance to be expected, which is determined as a function of an instantaneous driving resistance. A drive device for a motor vehicle is also described.

Method for operating a drive device of a motor vehicle and drive device for a motor vehicle

A method for ascertaining a rotational speed parameter for determining a setpoint torque for driving a drivetrain. The drivetrain comprises a first and at least one second drive assembly for driving a hybrid vehicle. The first drive assembly can be coupled to the drivetrain by means of a clutch. The second drive assembly is mechanically coupled to the drivetrain. When the hybrid vehicle is being driven by means of at least the first drive assembly, the rotational speed parameter corresponds to the value of a shaft rotational speed. When the hybrid vehicle is being driven only by means of the second drive assembly, the rotational speed parameter corresponds to the value of a determined rotational speed.

Method and device for ascertaining a rotational speed parameter for determining a setpoint torque

A device is described for longitudinally guiding a motor vehicle, including a sensor system for locating preceding vehicles, a controller that regulates the speed of the vehicle to a setpoint speed, either in a following driving mode as a function of the distance from a preceding vehicle or in a free driving mode, an interface to a navigation system which provides information about the traveled route, and a limiting device for limiting the setpoint speed based on the provided information. The limiting device is designed for calculating a limiting value for the setpoint speed for each possible route when the travel route is recognized as being ambiguous and for selecting the greatest of these limiting values for limiting the setpoint speed.

Device for longitudinally guiding a motor vehicle

A method and device for influencing the longitudinal velocity of a motor vehicle, in which a setpoint minimum distance and/or a setpoint maximum velocity is presettable by the driver, the driver being able to influence the vehicle velocity via the accelerator pedal and/or brake pedal, and in which the distance from a vehicle traveling ahead is measured by a distance-measuring sensor and, if the setpoint minimum distance is undershot and/or the setpoint maximum velocity is exceeded by the vehicle velocity, the vehicle velocity is limited so that the setpoint minimum distance is not undershot and/or the setpoint maximum velocity is not exceeded. This function is provided, in particular, in connection with an adaptive distance and cruise control system, the driver being able to activate either the adaptive distance and cruise control system or the limiting function.

Method and device for influencing the longitudinal velocity of a motor vehicle

In a method for regulating the vehicle speed and the engine speed in a motor vehicle having a manually shifted transmission, if the driver actuates the clutch during ongoing speed regulation, an upshift probability is calculated for the possibility that the driver will select the next higher gear step as a target gear and, when the clutch is actuated, the engine speed is regulated according to a time-dependent function selected on the basis of the upshift probability and the target gear, and the speed regulation is resumed after the release of the clutch.

Method and device for regulating the vehicle speed and engine speed in a motor vehicle having a manually shifted transmission

Input device for a cruise control system in motor vehicles, having an accelerator pedal, a switch for input of a desired speed and a determination device which increases the desired speed as a function of the duration of operation of the switch, wherein the determination device changes the function which determines the increase in the desired speed as a function of the operation of the accelerator pedal.

Input device for speed regulating system on motor vehicles

In a method and a device for triggering a request for taking control (RTC), a driver of a vehicle having adaptive cruise control is signaled that the adaptive cruise control system may not be capable of controlling a driving situation, and that the driver may have to intervene, the signaling of the driver being generated in accordance with at least two vehicle variables, whereby the probability of a false alarm by the system is reduced, and the triggering of the RTC is adapted to the instantaneous vehicle speed.

Method and device for triggering a request for taking control in acc-controlled vehicles

In a method for controlling the speed of a motor vehicle, an acceleration-demand signal is generated which represents a positive or negative setpoint acceleration of the vehicle, and either a control command is output to the engine or a control command is output to braking system of the vehicle as a function of this signal, wherein a signal for preloading the braking system is output when the acceleration-demand signal falls below a threshold value which lies above a value at which the braking system is activated.

Method for regulating the speed of a motor vehicle

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Hardthof, Germany

Manfred Hellmann