摘要:
The invention relates to a hybrid drive system for a vehicle; comprising an intermediate circuit (3) and an energy accumulator (5). According to the invention, the energy accumulator (5) is connected to the intermediate circuit (3) by means of a diode (6), whereby a transistor (7) enabling current to flow in an opposite direction is connected parallel thereto. The transistor (7) is placed in a blocking position in order to discharge the energy accumulator (5) and the diode (6) enables current to pass. If the energy accumulator (5) is not used, the diode (6) is also blocked by increasing the voltage (8) of the intermediate circuit (3) with the aid of the voltage (14) on the energy accumulator (5). In order to charge the energy accumulator (5), the transistor (7) is conductingly switched. The diode (6) does not allow the current to pass in this direction.
摘要:
The invention relates to a method for controlling the service life of an energy storage module (1), wherein a state of health (SoH) of the energy storage module (1) is known at different times (t). In order to improve the control of the service life of an energy storage module (1), it is proposed that a speed of ageing (vSoH) is determined from a first known state of health (SoH1), in which the energy storage module (1) is at a first time (t1), and a second state of health (SoH2), in which the energy storage module (1) is at a second time (t2), wherein a time (tEND_calc) of a determined end of service life is calculated from the speed of ageing (vSoH) and from one of the states of health (SoH), wherein depending on the time (tEND_calc) of the determined end of service life a measure for changing the service life of the energy storage module (1) is applied.
摘要:
The invention relates to a hybrid driving system for a vehicle comprising a generator connected to an internal combustion engine (1) which is linked to an electric driving motor (6) by means of a generator frequency converter, an intermediate voltage circuit and a motor frequency converter. An energy-storage reservoir (7) is connected to the intermediate voltage circuit. According to said invention, the intermediate voltage circuit is divisible into two partial intermediate circuits (3, 4) by means of a first switch (8). Each partial intermediate circuit comprises at least one driving motor (5, 6, 12) connected by means of the corresponding motor frequency converter. The aim of said invention is to adjust the hybrid driving system. For this purpose, when the voltage (U3) in the energy-storage reservoir (7) is lower than the voltage of the corresponding intermediate voltage circuit, the first switch (8) arranged between two intermediate circuits (3, 4) switches off the link and the first switch (8) becomes an open conductor only.
摘要:
The invention relates to a method for symmetrizing an energy storage system (1) comprising a series circuit of storage modules (2, 21). The series circuit of storage modules (2, 21) has at least two capacitive storage modules (2), said capacitive storage modules (2) being connected to a symmetrizing device (4) such that a charge of each capacitive storage module (2) can be influenced by a flow of current between the symmetrizing device (4) and the capacitive storage modules (2), wherein each capacitive storage module (2) has a capacitance (C i ). In order to achieve an optimized energy supply system, a method is proposed having the following steps: - ascertaining the capacitance (C i ) of each capacitive storage module (2), - determining a module charge (Q eq_i ) for each capacitive storage module (2) at least from a voltage (U i ) of the respective capacitive storage module (2) and a specifiable symmetrizing voltage (U eq_i ), - determining a reference charge (Q ref ) at least from the module charges (Q eq_i ) of the capacitive storage modules (2), - determining a symmetrizing charge (Q sym_i ) for each capacitive storage module (2) at least from the reference charge (Q ref ) and the module charge (Q eq_i ) of the respective capacitive storage module (2), and - influencing the charge of each capacitive storage module (2) by exchanging the respective symmetrizing charge (Q sym_i ) between each capacitive storage module (2) and the symmetrizing device (4).
摘要:
The invention relates to a hybrid driving system for a vehicle comprising a generator connected to an internal combustion engine (1) which is linked to an electric driving motor (6) by means of a generator frequency converter, an intermediate voltage circuit and a motor frequency converter. An energy-storage reservoir (7) is connected to the intermediate voltage circuit. According to said invention, the intermediate voltage circuit is divisible into two partial intermediate circuits (3, 4) by means of a first switch (8). Each partial intermediate circuit comprises at least one driving motor (5, 6, 12) connected by means of the corresponding motor frequency converter. The aim of said invention is to adjust the hybrid driving system. For this purpose, when the voltage (U3) in the energy-storage reservoir (7) is lower than the voltage of the corresponding intermediate voltage circuit, the first switch (8) arranged between two intermediate circuits (3, 4) switches off the link and the first switch (8) becomes an open conductor only.
摘要:
The invention relates to a hybrid drive system for a vehicle; comprising an intermediate circuit (3) and an energy accumulator (5). According to the invention, the energy accumulator (5) is connected to the intermediate circuit (3) by means of a diode (6), whereby a transistor (7) enabling current to flow in an opposite direction is connected parallel thereto. The transistor (7) is placed in a blocking position in order to discharge the energy accumulator (5) and the diode (6) enables current to pass. If the energy accumulator (5) is not used, the diode (6) is also blocked by increasing the voltage (8) of the intermediate circuit (3) with the aid of the voltage (14) on the energy accumulator (5). In order to charge the energy accumulator (5), the transistor (7) is conductingly switched. The diode (6) does not allow the current to pass in this direction.