Audi Ag

Boris Blasinski

Rene Kasteneder

Florian Zink

Florian Mühlfeld

Markus Kaun

René Schimmel

Matthias Kaiser

Günter Schiele

A method and a device for optimizing fuel consumption includes using a charge mode of a plug-in hybrid vehicle.

Charge mode ECO

A method for operating a motor vehicle having a hybrid drive, and to a motor vehicle configured for carrying out the method. In a hybrid operating mode of the motor vehicle, a proportion of a purely electric driving operation is maximized by controlling the automatic transmission so a resulting rotational speed is not lower than a preset minimum value.

Method for operating a PHEV and motor vehicle configured therefor

A method for operating a hybrid drive apparatus for a motor vehicle, having an exhaust-gas-producing internal combustion engine and an electric motor. The internal combustion engine and the electric motor, respectively alone or at least sometimes jointly, provide a drive torque, wherein, when a start threshold value is exceeded by a demand variable. The internal combustion engine is started and the drive torque is at least partially generated by the internal combustion engine, and, when a stop threshold value is not met by the demand variable, the internal combustion engine is stopped and the drive torque is generated solely by means of the electric motor.

Method for operating a hybrid drive apparatus for a motor vehicle as well as a corresponding hybrid drive apparatus

A method for operating a motor vehicle. To determine a total operating strategy, predictive basic data describing the operation of the motor vehicle for a known route is determined from input data comprising route data. The operating strategies of the motor vehicle are evaluated based on the predictive basic data in order to determine the total operating strategy. The motor vehicle is then operated according to the total operating strategy. To determine the basic data, a performance profile is determined based on the total required performance of the vehicle throughout the route. The route is divided into route sections, each assigned characterizing performance information. Successive route sections are combined into a common segment when at least one similarity criterion is satisfied comparing the performance information of the route sections. Thereafter, the segments are provided with this assigned total performance information associated with the total performance information.

Method for optimizing data in determining operating strategies of the motor vehicle

A method for operating a motor vehicle provided with a hybrid drive apparatus. The hybrid drive device is equipped with an internal combustion engine that can be operated with a fuel, as well as with an electric engine, and a lubricant is supplied at least intermittently to the internal combustion engine. At the same time, a lubricant dilution value is determined with a dilution of the lubricant so that the internal combustion engine is started when a first threshold value is exceeded by the lubricant dilution value, and when the motor vehicle is located on a regeneration route of an anticipated driving route of the motor vehicle and the regeneration route is sufficient to reduce the lubricant dilution value by a specified value.

Method for operating a motor vehicle provided with a hybrid drive apparatus and a corresponding motor vehicle

A method for calculating in advance the consumption of a motor vehicle provided with at least one drive motor in a drivetrain, wherein the power levels of differentiated predicted energies describing the predicted operation of the motor vehicle, which are required to complete a route that is known in advance and include input data obtained from the route data, are determined, wherein the predicted energies are assigned in dependence on the associated power levels and at least one used operating strategy proportionally to the different efficiency models of the drive train, and while using the efficiency model from the predicted energy components associated with the efficiency model, the energy used from an associated energy storage device is determined as consumption or as a variable determining consumption.

Method for predicting the consumption of a motor vehicle, motor vehicle and computer program

The disclosure relates to a process for route-dependent control of an energy storage device of an at least partially electrically operated motor vehicle, for example a mild-hybrid passenger vehicle, which is implemented by a charge state control device. In this process, said device receives at least one information-containing data value, which relates to a driving situation to be expected on a route section of a driving route. A prediction of the energy requirement of a first device of an onboard network on the route section takes place using the information received. When a predetermined lower threshold value of the predicted energy requirement of the first device is not met, a control signal is generated that causes an energy quantity of an energy reserve of the energy storage device reserved for the first device of the onboard network to be allocated at least partially to a second device of the onboard network. The process may comprise a predicting of a value of a freely available energy reserve of the energy storage device on the route section as a function of the predicted energy requirement and an at least partial allocation of the predicted freely available energy reserve to the second device.

Predictively controlling the state of charge of an energy storage device of an electrically operated motor vehicle

A method for operating a motor vehicle is disclosed. The motor vehicle is provided with a hybrid drive device having an electric machine, an internal combustion engine and a particle filter associated with the internal combustion engine, wherein the internal combustion engine is operated temporarily for regenerating the particle filter. In a first operating mode, the regeneration is only started when it is determined by a navigation device that an electric driving region to be driven through lies ahead, in which region an operation of the internal combustion engine and/or the regeneration of the particle filter is not desired.

Method for operating a motor vehicle and corresponding motor vehicle

A method is provided for operating a navigation system of a hybrid motor vehicle having a combustion engine and an electric motor that is fed from an associated battery. In this method, an efficiency route enabling a maximum utilization of the electric motor is determined by the navigation system, where at least one item of efficiency information is considered in the determination of the efficiency route. The efficiency information is provided dynamically by a drive control device of the motor vehicle and is dependent on the current operating state and/or the current operating prediction.

Method for operating a navigation system of a hybrid motor vehicle, and hybrid motor vehicle

A method for operating a hybrid drive device of a motor vehicle is disclosed, wherein the hybrid drive device includes an internal combustion engine, which can be operatively connected to a first axle of the motor vehicle, a first electric motor, which can also be operatively connected to the first axle of the motor vehicle, and a second electric motor, which can be operatively connected to a second axle of the motor vehicle. The electrical energy used for operating the second electric motor is generated in a first mode of operation by the first electric motor driven by the internal combustion engine while increasing the output of the internal combustion engine, and in a second mode of operation is derived exclusively from an energy storage device for electrical energy.

Method for operating a hybrid drive device for a motor vehicle

A method for operating a motor vehicle includes operating the motor vehicle in a drive mode, a recuperation mode or a charging mode, wherein when operating the motor vehicle in the recuperation mode, a recuperation driving route driven during the recuperation mode and an associated recuperation energy amount are determined and are stored as driving route data in a driving route memory and/or are transmitted to an external data storage device; wherein when switching into the charging mode or when operating the motor vehicle in the charging mode an expected driving route of the motor vehicle is predictively determined and for the expected driving route the driving route data are read out from the driving route memory and/or are requested from external data storage device; wherein the target state of charge is set to a value which is determined from a maximal state of charge of the energy storage and the recuperation energy amount stored in the driving route data.

A hybrid vehicle includes at least one drive axle which can be driven by means of a drive device, which has an accumulator, an electric machine coupled to the accumulator in order to exchange electric energy and an internal combustion engine which, when activated, mechanically drives the electric machine to generate electric energy. The hybrid vehicle also includes a control unit which controls both the electric machine and the internal combustion engine. The control unit is designed to operate the electric machine exclusively to start up the hybrid vehicle, until a threshold speed which allows the vehicle to be driven by the internal combustion engine is reached, and to control the operation of the electric machine and the internal combustion engine so that when the hybrid vehicle comes to a halt, the electric charge in the accumulator exceeds a predefinable comparison value, which is calculated such that the electric energy stored in the accumulator allows a start up of the hybrid vehicle by means of the electric machine up to the threshold speed.

Drive device for a hybrid vehicle

It is known to charge the battery in a hybrid vehicle with a generator such that the efficiency (electric power per fuel quantity) is maximal. It is known that the consumption-optimized mode can be terminated in order to charge the battery faster. A mathematical calculation rule is applied to the optimal value of the efficiency in order to determine a value for an efficiency which then indicates a load point shift for the internal combustion engine. In particular, constant percentages can be used which are applied to the inverse efficiency.

Growing community of inventors

Gaimersheim, Germany

Boris Blasinski