Abstract:
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.
Abstract:
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.
Abstract:
A method is described for operating a vehicle, in particular a hybrid vehicle, in which at least one of the axles of the vehicle is driven by a drive unit causing the vehicle to be accelerated at a predefined setpoint torque, in that a partial drive torque is transferred to at least one axle and the wheels coupled to it. For the setpoint torque requested by the driver to be converted into the corresponding acceleration of the vehicle, the partial drive torque of the steered axle and/or the unsteered axle is corrected while negotiating a curve in such a way that the vehicle is accelerated at the predefined setpoint torque.
Abstract:
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.
Abstract:
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.
Abstract:
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.
Abstract:
A method for the adaptive control of distance and/or driving speed of a motor vehicle. A control device is able to control an engine of the motor vehicle in at least a first operating mode and a brake of the motor vehicle in a second operating mode, a transition being made from the first operating mode to the second operating mode and vice versa as a function of determined quantities.
Abstract:
A method and device for adaptive control of separation distance and/or driving speed of a motor vehicle, at least in a first operational mode an engine of the motor vehicle and in a second operational mode a brake of the motor vehicle being able to be activated as a function of a magnitude, representing an acceleration, the magnitude representing the setpoint acceleration is formed and/or limited at least as a function of at least one base value.
Abstract:
A method and a device for monitoring a computer system which includes at least two processors. A first processor of the at least two processors monitors at least a second processor for correct functioning, by monitoring output signals of the second processor or the variables derived from it, at least with regard to their temporal sequence, their content, or their signal (wave) form. A relay of the output signals of the second processor to further units is blocked when the first processor, separately from the second processor, is placed in an energy-conserving operating mode.
Abstract:
A device includes a first control unit for regulating the speed and/or acceleration of a vehicle and a second control unit for controlling a display with which at least one instantaneous actual speed vFA and a selected desired speed vsetA can be displayed. In order to match the two control units with regard to the prevailing speedometer lead, the second control unit includes an element with which the next higher and next lower selectable desired speeds can be determined. These selectable desired speeds are transmitted to the first control unit.