Patent application number | Description | Published |
20110093145 | CALIBRATING AN INTERNAL COMBUSTION ENGINE - In a method for determining the torque of an internal combustion engine of a motor-vehicle hybrid drive device which further includes a secondary electric motor coupled to the internal combustion engine, the torque of the internal combustion engine is determined at least one operating point by comparison to the known torque of the secondary motor. | 04-21-2011 |
20110172866 | METHOD FOR OPERATING AN ELECTRIC VEHICLE - A method for operating an electric vehicle, the electric vehicle having an electric motor and a brake device, and the electric motor and the brake device being capable of being influenced by a control device. When the electric vehicle is at a standstill, when there is an error of the control device, the brake device is actuated so that the electric vehicle cannot move, or at least can move only to a very limited extent. | 07-14-2011 |
20110264315 | METHOD AND DEVICE FOR CONTROLLING AN ELECTRICAL MACHINE OF A HYBRID DRIVE WITH INCREASED AVAILABILITY - A method for controlling an electrical machine of a hybrid drive includes: ascertaining at least one operating parameter value of the electrical machine; identifying an error, if the at least one operating parameter value does not correspond to the standard state of an operating parameter; and at least partially restricting the operation of the electrical machine as a propulsion unit if an identified error exists. The electrical machine is operated at least temporarily as a starter when an identified error exists, independently of the operation of the electrical machine as a propulsion unit. | 10-27-2011 |
20110264341 | Method And Device For Controlling A Drive Train - A method for controlling a drive train with at least one drive unit, in particular for a vehicle is disclosed. A setpoint value for a torque of the at least one drive unit can be predefined. The actual value of this torque is detected and a first signal is generated which ensures reliable operation of the drive train if the deviation of the actual value from the setpoint value is greater than a predefinable absolute value of the deviation value and/or the deviation of the actual value from the setpoint value lasts for longer than a predefinable absolute value of the deviation time period. | 10-27-2011 |
20120046813 | Method and system for operating an electrical machine, controlled by an inverter, in a motor vehicle in a fault situation - An electrical machine in a motor vehicle is controlled by an inverter, which motor vehicle has an automatically or manually actuatable transmission. The electrical machine generates, in generator mode, electrical energy that is stored in an energy reservoir. In a fault situation, at least one variable characterizing the charge state of the energy reservoir is detected and compared with a predefined lower threshold value, and upon a shortfall below the lower threshold value, the electrical machine is switched into a freewheeling mode by opening the inverter's switching elements. For an automatic transmission, a higher transmission ratio than a present transmission ratio is additionally established; for a manual transmission, the driver is notified by a message that a lower gear needs to be engaged. | 02-23-2012 |
20120078575 | CHECKING OF FUNCTIONS OF A CONTROL SYSTEM HAVING COMPONENTS - A method for checking functions, to be checked, of a control system, the control system having components to be checked, in particular redundant components, and an evaluation unit which evaluates the operability of the components on the basis of status reports of the components, the method including a component-side check of the functions, to be checked, of the components to be checked, and a system-wide check of at least one, but not all, of the functions checked on the component side. | 03-29-2012 |
20120081221 | Vehicle, in particular a hybrid vehicle, having an electrical device - In a vehicle, e.g., a hybrid vehicle, having an electrical device, which has an inadmissibly high voltage for being touched by a person, a signaling sensor configured to respond in the event of an accident is connected to a warning device for signaling the voltage level. | 04-05-2012 |
20120109435 | CONTROL UNIT, IN PARTICULAR FOR A HYBRID VEHICLE, HAVING AN ELECTRIC DRIVE AND AN INTERNAL COMBUSTION ENGINE, AND A METHOD FOR OPERATING A HYBRID VEHICLE - A control unit for a hybrid vehicle is described, having an electric drive, and an internal combustion engine, and a method for operating a control unit, in particular for a hybrid vehicle. The hybrid vehicle has an electric drive, an internal combustion engine, a traction battery, a power electronics system, current consumers, a control unit and an insulation fault detector. The control unit initiates an emergency operating mode when an insulation fault is detected. | 05-03-2012 |
20120185145 | Method and system for actuating at least one actuator - In a method for actuating at least one actuator, two control units and a selection logic are provided, and each of the control units is designed to influence the actuator. Each of the control units performs a self-diagnosis, and each of the control units generates at least one activating signal as a function of the self-diagnosis. The activating signal indicates which of the control units is to be activated. The selection logic activates one of the two control units for influencing the actuator as a function of the activating signals. | 07-19-2012 |
20130187585 | METHOD FOR OPERATING AN AT LEAST THREE-PHASE ELECTRIC MACHINE, USED AS A DRIVE ASSEMBLY IN A MOTOR VEHICLE, AND CONTROL UNIT FOR AN INVERTER - In a method for operating an at least three-phase electric machine used as a drive assembly in a motor vehicle, which is actuated via an inverter, the inverter including switching elements in the form of half bridges which are in each case electrically connected to a respective phase of the electric machine, when a first switching element of a first half bridge connected to a first phase is permanently closed/opened on account of failure, a second switching element of the first half bridge is permanently opened/closed and, in a first angular range of an electrical rotation, which is uninfluenced by the first phase, all switching elements of the additional half bridges are actuated in the usual manner. | 07-25-2013 |
20130190953 | METHOD FOR INCREASING THE AVAILABILITY OF HYBRID VEHICLES - In a method for increasing the availability of a hybrid drive having an internal combustion engine and an electric motor, the electric motor is operated as a starter of the internal combustion engine as well as a travel drive unit within the hybrid drive, and at least one operating parameter, corresponding to an operating parameter of the at least one electric motor, is ascertained. An error is identified if the at least one operating parameter value does not correspond to an operating parameter standard state, in which case the operation of the electric motor as the travel drive unit is at least partially limited. Lastly, a driving state-dependent error response is carried out depending on the instantaneous operating state of the hybrid drive. | 07-25-2013 |
20130317686 | METHOD AND DEVICE FOR OPERATING AN ELECTRIC MACHINE OF A MOTOR VEHICLE DRIVE TRAIN - A method for operating an electrical machine, in particular for making available drive power for a drive train of a motor vehicle, the electrical machine being controlled by several phase currents, the method including sensing an electrical variable that represents the torque delivered by the electrical machine; and monitoring the torque. A degradation of the electrical machine is taken into consideration in the monitoring of the torque. | 11-28-2013 |
20130320988 | Method and Arrangement for Monitoring the Voltage on Electrical Storage Units, Battery and Motor Vehicle having such a Battery - The present disclosure relates to a method for monitoring the voltage on electrical storage units, to a battery and to a motor vehicle having such a battery that are configured to be used particularly for improved establishment of overvoltages and/or undervoltages on modules of the electrical storage unit. To this end, a method for monitoring the voltage on at least one electrical storage unit includes extracting an idle voltage U_OCV on the at least one electrical storage unit from a voltage U_measured that is measured on the at least one electrical storage unit. | 12-05-2013 |
20130338872 | METHOD AND DEVICE FOR INITIATING AN OPERATION OF A MOTOR VEHICLE UNDER EMERGENCY CONDITIONS - A method for initiating an operation under emergency conditions of a motor vehicle, the method including detecting a malfunction of a component of the motor vehicle; checking whether an operation under emergency conditions is possible; reporting the malfunction to the driver; initiating the operation under emergency conditions under predefined conditions, the operation under emergency conditions being initiated following an active confirmation by the driver. | 12-19-2013 |
20130346783 | Method and Arrangement for Monitoring at least one Battery, Battery having such an Arrangement, and Motor Vehicle having a Corresponding Battery - The present disclosure relates to a method and an arrangement for monitoring at least one battery, to a battery having such an arrangement, and to a motor vehicle having a corresponding battery that is used for safely monitoring the battery condition with a reduced amount of hardware. The at least one battery is monitored by analyzing measured variables of the at least one battery using at least one data processing device. The signals exchanged between the at least one battery and the at least one data processing device via a communication connection are monitored at least once. | 12-26-2013 |
20140149809 | Method for Monitoring at least Two Microcontrollers - A method for monitoring at least two microcontrollers using a watchdog is described. The watchdog is associated with a first microcontroller and monitors the communication of a message from the first microcontroller within a time interval of a predefined duration. The message communicated to the watchdog by the first microcontroller contains a contribution which is formed on account of communication between the first microcontroller and a second microcontroller connected to the latter and on the basis of which the watchdog checks the proper method of operation of the second microcontroller. The disclosure also describes a circuit arrangement and a battery with a battery management unit which are configured to carry out the method according to the disclosure. | 05-29-2014 |
20140152445 | WARNING SYSTEM FOR MONITORING A VEHICLE BATTERY - A warning system for detecting a battery fire in a battery of an electric or hybrid vehicle includes a battery management system. The electric or hybrid vehicle is parked at or in a building to carry out a battery charging operation. The battery management system is connected to a building network installed in the building during the charging operation either via a direct connection or via a wireless connection. The battery management system triggers or activates protective measures if a fire is detected. | 06-05-2014 |
20140175874 | SECURITY ARCHITECTURE, BATTERY AND MOTOR VEHICLE HAVING A CORRESPONDING BATTERY - A security architecture, a battery, and a motor vehicle that has a corresponding battery are configured to be used to combine battery packs of a lower security integrity level into a battery system that has a higher security integrity level. The security architecture is for at least two batteries and each battery includes at least one electrochemical cell. The at least two batteries are each combined with at least one data processing unit to form a respective module. The security architecture is configured such that input signals of at least one second module are processed by the at least one data processing unit of at least one first module. | 06-26-2014 |
20150051751 | DAMAGE LIMITATION FOR A MOTOR VEHICLE IN A DANGEROUS SITUATION - A system for limiting damage in a hazard situation of a motor vehicle encompasses a first sensing device for sensing the hazard situation, a second sensing device for sensing a state of the motor vehicle, a processing device for identifying an action instruction on the basis of the hazard situation and of the state of the motor vehicle, and a conveying device for conveying the action instruction to a person in the vicinity of the motor vehicle. A method for limiting damage in a hazard situation of a motor vehicle encompasses steps of sensing the hazard situation, sensing a state of the motor vehicle, identifying an action instruction on the basis of the hazard situation and of the state of the motor vehicle, and conveying the action instruction to a person in the vicinity of the motor vehicle. | 02-19-2015 |