Abstract: An electric vehicle includes a battery modules electrically connected in parallel and having the same nominal module voltage, a determination device for determining a battery state parameter representing a state of charge of the battery module; a switching system to switch current paths of the battery modules to be conducting or blocking; an energy management system configured to, if a battery module has a state of charge that is noticeably lower than a state of charge of another battery modules, switch the current path of the battery module with the lower state of charge to be blocking during a driving mode until the charging state of the battery module with the higher state of charge is balanced with the charge state of the battery module with the lower state of charge, and then switch the current path of the battery module with the lower state of charge to be conductive.

Abstract: A drive system is provided for a motor vehicle having: a first wheel pair driven by an internal combustion engine and an electric motor; a second wheel pair driven by an electric motor; an internal combustion engine which is coupled to the first wheel pair; a generator which can be operated as an electric motor and which is coupled to the internal combustion engine and the first wheel pair; and an electric motor which is coupled to the second wheel pair and is set up to convert energy produced by the generator into mechanical energy. A planetary gear is provided which is used to couple the internal combustion engine to the generator and the first wheel pair.

Abstract: A drive system is provided for a motor vehicle having: a first wheel pair driven by an internal combustion engine and an electric motor; a second wheel pair driven by an electric motor; an internal combustion engine which is coupled to the first wheel pair; a generator which can be operated as an electric motor and which is coupled to the internal combustion engine and the first wheel pair; and an electric motor which is coupled to the second wheel pair and is set up to convert energy produced by the generator into mechanical energy. A planetary gear is provided which is used to couple the internal combustion engine to the generator and the first wheel pair.

Abstract: A drive system for a motor vehicle comprising an internal-combustion engine, an electric machine coupled to the internal-combustion engine, and a transmission device through which a ratio change can be implemented without a tractive power interruption is described. Also described is a control device for controlling the electric machine and for controlling the transmission device. The control device is constructed such that, in the event of a braking demand, the demanded total braking torque is at least proportionally provided by the electric machine, and, in the case of an existing braking demand with a constant total braking torque and a change of the transmission ratio implemented in the presence of this braking demand, the electric machine is controlled such that the total braking torque changing because of the ratio change is at least partially compensated, so that a constant total braking torque according to the braking demand is maintained.

Abstract: An electric drive system includes a multi-phase electric machine, multiple electrical power output stages, and devices for controlling and/or regulating the electric machine, which are connected to the electrical power output stages. At least two control units are provided for control and/or regulation, at least one power output stage group being assigned to each control unit.

Abstract: A hybrid vehicle includes an internal-combustion engine drive coupleable with a transmission by way of a first coupling device, and an electric machine. A transmission is drivable exclusively by the internal-combustion engine drive, or simultaneously by the internal-combustion engine drive and by the electric machine, or when the first coupling device is open, exclusively by the electric machine. The internal-combustion engine drive has a first internal-combustion engine unit, which can be coupled with the transmission by way of the first coupling device, and a second internal-combustion engine unit, which can be coupled with the first internal-combustion engine unit by way of a second coupling device.

Abstract: Hybrid drive for a motor vehicle with a drive train, comprising a combustion engine and a vehicle transmission with variable gear ratio and a first and second electrical machine which can be operated both as a motor and a generator, each of which comprises a stator and a rotor with the second electrical machine being in a permanent nonpositive connection with an input of the vehicle transmission, with a shiftable clutch each being arranged between the electrical machines and the drive shaft of the combustion engine, and with the electrical machines to be connected with each other and/or an electrical energy source via an electronic control circuit. The two electrical machines are to be arranged in a common housing, and one of the stators of the electrical machines together with the electronic control circuit and/or the other stator is accommodated on a common carrier.

Abstract: An energy storage system is provided for an at least partially electromotively driven or drivable motor vehicle having a drive unit constructed as an electric machine for generating drive power onto a drive train. The energy storage system includes a first energy storage unit utilizing capacitive energy storage devices, and a second energy storage unit connected in parallel with the first energy storage unit and utilizing electrochemical energy storage devices.

Abstract: A motor vehicle is provided with a capacitor device for storing electric energy. The capacitor device is specifically discharged by a short-circuiting switch, which is arranged in parallel to the terminal posts of the capacitor device, without any intermediary activity of a separate discharge resistor.

Abstract: An electric drive system includes a multi-phase electric machine, multiple electrical power output stages, and devices for controlling and/or regulating the electric machine, which are connected to the electrical power output stages. At least two control units are provided for control and/or regulation, at least one power output stage group being assigned to each control unit.

Abstract: A drive system for a motor vehicle comprising an internal-combustion engine, an electric machine coupled to the internal-combustion engine, and a transmission device through which a ratio change can be implemented without a tractive power interruption is described. Also described is a control device for controlling the electric machine and for controlling the transmission device. The control device is constructed such that, in the event of a braking demand, the demanded total braking torque is at least proportionally provided by the electric machine, and, in the case of an existing braking demand with a constant total braking torque and a change of the transmission ratio implemented in the presence of this braking demand, the electric machine is controlled such that the total braking torque changing because of the ratio change is at least partially compensated, so that a constant total braking torque according to the braking demand is maintained.

Abstract: An energy storage system is provided for an at least partially electromotively driven or drivable motor vehicle having a drive unit constructed as an electric machine for generating drive power onto a drive train. The energy storage system includes a first energy storage unit utilizing capacitive energy storage devices, and a second energy storage unit connected in parallel with the first energy storage unit and utilizing electrochemical energy storage devices.

Abstract: A motor vehicle is provided with a capacitor device for storing electric energy. The capacitor device is specifically discharged by a short-circuiting switch, which is arranged in parallel to the terminal posts of the capacitor device, without any intermediary activity of a separate discharge resistor.

Abstract: Hybrid drive for a motor vehicle with a drive train, comprising a combustion engine and a vehicle transmission with variable gear ratio and a first and second electrical machine which can be operated both as a motor and a generator, each of which comprises a stator and a rotor with the second electrical machine being in a permanent nonpositive connection with an input of the vehicle transmission, with a shiftable clutch each being arranged between the electrical machines and the drive shaft of the combustion engine, and with the electrical machines to be connected with each other and/or an electrical energy source via an electronic control circuit. The two electrical machines are to be arranged in a common housing, and one of the stators of the electrical machines together with the electronic control circuit and/or the other stator is accommodated on a common carrier.

Abstract: A hybrid drive for a motor vehicle which possesses, in a gear train (1), a first electrical machine (4) located between an internal combustion motor (2) and a multi-gear vehicle transmission (3). The hybrid drive further possesses a second electrical machine (6) permanently connected with an input shaft (5) of the transmission. First and second clutches (7, 8), respectively, are placed between the first and second electrical machines (4, 6) and the internal combustion motor (2) and the first and second electrical machines (4, 6) can be respectively driven as either a motor or a generator.

Abstract: A position recognition arrangement for a selector lever in motor vehicles, in which a separate recognition switch is assigned to every valid and selectable position. The recognition switches are actuated simultaneously in a transition area from one position to the adjacent position. Preferably, the recognition switches are formed by mutually separate contact paths which extend in the operating direction of the selector lever, of which at least the respective adjacent contact paths are offset with respect to one another perpendicularly to the operating direction and overlap one another at least in a transition area relative to the perpendicular line with respect to the operating direction.