| Patent application number | Description | Published |
|---|
| 20090189557 | METHOD AND ARRANGEMENT FOR CONTROLLING AN ELECTRIC DRIVE - A method for controlling an electric drive is proposed, in which, in the event of a fault, a motor control unit of an electric motor implements a safety measure to change over to a secure operating condition, such that when a faulty three-phase current feed to the electric motor is detected, a fault-associated operating mode is activated. In addition, an arrangement for controlling an electric drive comprising an electric motor with a motor control unit is proposed, which implements a safety measure in the event of a fault so as to change over to a secure operating condition, such that when a faulty three-phase current feed to the electric motor is detected, the motor control unit activates a fault-associated operating mode. | 07-30-2009 |
| 20100019741 | CIRCUIT ARRANGEMENT AND METHOD FOR REGULATING THE CURRENT IN AN ON-BOARD ELECTRICAL POWER SUPPLY SYSTEM OF A VEHICLE - A circuit arrangement for regulating the current in an on-board electric power supply system of a vehicle, with a controllable damping resistance, an energy accumulator and an electronic control unit. The damping resistance is adjustable to satisfy a control condition, such that generator current flowing through the control unit can be compensated by a counter-current originating from the energy accumulator and flowing through the damping resistance, having regard to a specified current limit value. In a method for controlling the circuit arrangement, generator current flowing through the control unit is compensated by a counter-current originating from the energy accumulator and flowing through the damping resistance, and the damping resistance is controlled, in such a manner, that a predetermined current limit value is taken into account. | 01-28-2010 |
| 20100125022 | METHOD FOR OPERATING A DRIVE TRAIN - A process of operating a motor vehicle drive train that comprises at least one hybrid drive having a combustion engine and an electric motor with a clutch connected between the combustion engine and the electric motor, and an automatic transmission is arranged between the hybrid drive and an output. The process including the step of disengaging the clutch to carry out a shift, after a reduction of load at the internal combustion engine and after a reduction of the torque that is transmitted between the internal combustion engine and the electric motor. Subsequently carrying out a gear shift by the automatic transmission and, thereafter, increasing the torque that is transmitted by the clutch. Increasing the load from the combustion engine, and optionally engaging the clutch. A load transfer by the electric motor occurs before and/or after the gear shift in the transmission is carried out. | 05-20-2010 |
| 20100217508 | METHOD FOR TREATEMENT OF A DRIVELINE - A method of operating a drivetrain of a motor vehicle. The drivetrain comprises a drive aggregate formed as a hybrid drive with a combustion engine and an electric machine, and a transmission connected between the drive aggregate and a drive output. The drivetrain also comprises a pressure reservoir system with at least one pressure reservoir and at least one pressure generator by the combustion engine in order to fill the pressure reservoir. A pressure in the pressure reservoir of the pressure reservoir system is measured and a value of the actual pressure, in the pressure reservoir system, is compared with at least one threshold value. When the actual pressure value is higher than a threshold value, stopping of the combustion engine is permitted, whereas if the actual pressure value is lower than the threshold value, stopping of the combustion engine is not permitted. | 08-26-2010 |
| 20100304925 | MOTOR VEHICLE CONTROL SYSTEM - A motor vehicle control system for controlling a motor vehicle with a hybrid drive comprising an internal combustion engine and an electric motor, with a strategy sub-component, a control sub-component and an actuator sub-component. The functional components include at least an internal combustion engine functional component, a transmission functional component, such that the strategy sub-component ( | 12-02-2010 |
| 20110035084 | METHOD FOR CALCULATING THE EFFICIENCY OF AN ENERGY STORE, AND USE OF SAID EFFICIENCY - Within the scope of the method for calculating the efficiency of the energy store in a parallel hybrid vehicle, said energy store being connected to the electric machine of a parallel hybrid vehicle and comprising an internal combustion engine and at least one electric machine, the efficiency of the energy store is continuously calculated online or in real time in the energy storage module on the basis of an energy store model using known energy-store-specific parameters and energy-store-specific measured variables. | 02-10-2011 |
| 20110054724 | METHOD FOR OPTIMIZING THE UTILIZATION OF AN ENERGY STORE CONNECTED TO AN ELECTRIC MACHINE - A method is proposed for optimizing the utilization of the energy store which is connected to the electric machine of a parallel hybrid vehicle, in the scope of which method different lower limits are defined or predefined for the operation of the energy store, wherein a priority is assigned to each vehicle function which requires electric power in order to be performed, wherein different lower energy storage limits are assigned to different priorities in such a way that the energy storage limits are reduced for vehicle functions having a relatively high priority, with the result that said functions are carried out within the physical limits of the energy store. | 03-03-2011 |
| 20110166726 | MOTOR VEHICLE CONTROL SYSTEM - A control system for controlling a vehicle with a hybrid drive comprising an internal combustion engine and an electric motor and a plurality of functional components each divided into at least a strategy sub-component, a control sub-component and an actuator sub-component, the functional components including at least an engine functional component, a transmission functional component and a hybrid functional component, such that the strategy sub-component ( | 07-07-2011 |
