Abstract:
The invention relates to a circuit assembly for linking different electrical voltage levels in a motor vehicle, comprising: an electric machine containing induction coils in a star circuit connection with a star point; a first switch unit containing switch elements for generating an AC voltage for the electric machine from a DC voltage of a first voltage level; a DC voltage of a second voltage level; and a second switch unit for a bidirectional electrical energy flow between the DC voltage of the first voltage level and the DC voltage of the second voltage level, wherein the second switch unit has two switch elements arranged in series in an auxiliary switch branch, wherein the auxiliary switch branch is connected in parallel to the DC voltage of the first voltage level, and each connection of the switch elements is connected to the star point.
Abstract:
A vehicle includes: an engine driven with gasoline; a lid member (213A) opening/closing an opening (213B) of an accommodation room (213C) that accommodates a nozzle receiving unit (215) when gasoline is supplied; a rotating electric machine driven on electric power; a charging/power feeding unit (90) receiving electric power; a lid member (90A) opening/closing an opening (90B) of an accommodation room (90C) accommodating a charging/power feeding unit (90); and an open/close control mechanism setting the other of the lid member (213A) and the lid member (90A) in the closed position when one of the lid member (213A) and the lid member (90A) is set in the open position.
Abstract:
The present invention relates to a method and a device for charging a battery unit (10) and operating a load unit (20) via an inverter (30). A first pole (11a) of the battery unit is coupled to an inductive element (22a, 22b, 22c) of the load unit (20) and a voltage tap (51) of an external supply unit (50) is coupled to a first input (37a) of the inverter (30) in order to supply same with an external DC voltage or an external DC current. Further, a switching of the switch elements (31-36) of the inverter (30) is carried out in such a way that the battery unit (10) is supplied with a necessary charging current or a necessary charging voltage from the external supply unit (50) via one of the inductive elements (22a, 22b, 22c).
Abstract:
A driver circuit for driving an electrical motor coil is provided which comprises combined switched inductance boost voltage converter circuitry and switched inductance buck voltage converter circuitry. An input node of the driver circuit is provided to be coupled with the electrical motor coil, which provides the inductive element of both the boost and buck circuitry. Further the boost and buck circuitry share a storage capacitor, which provides the capacitive element of each circuitry, and a voltage developed across the storage capacitor by the boost circuitry forms an input of the switched inductance buck voltage converter circuitry. Bidirectional driving of the electrical motor coil is thus provided from a driver circuit which only need be supplied with a single unidirectional supply and the current drawn from that supply is significantly reduced because of the manner in which the boost and buck circuitry operate synergistically to recycle electrical power which is moved back and forth between the electrical motor coil and the storage capacitor. A corresponding driver board, electrical motor driver apparatus, method of operating a driver circuit and apparatus are also provided.
Abstract:
An integrated power system suitable for simultaneously powering marine propulsion and service loads. The system includes: (a) at least one generator configured with at least first and second armature windings configured to output respective first and second alternating current power signals of different voltages, the at least two armature windings positioned within the same stator slots so that they magnetically couple; (b) at least first and second rectifier circuits coupled to said generator to convert said first and second alternating current power signals into first and second direct current power signals; and (c) a first load to which said first direct current power signal is coupled and a second load to which said second direct current power signal is coupled.
Abstract:
An on-vehicle power supply system and an electric vehicle are provided. The on-vehicle power supply system includes: a power battery (10); a charge-discharge socket (20) connected with an external load (1001); a three-level bidirectional DC-AC module (30) having a first DC terminal connected with a first terminal of the power battery (10) and a second DC terminal connected with a second terminal of the power battery (10); a charge-discharge control module (50) having a first terminal connected with an AC terminal of the three-level bidirectional DC-AC module (30) and a second terminal connected with the charge-discharge socket (20); and a control module (60) connected with the charge-discharge control module (50) and the three-level bidirectional DC-AC module (30), and configured to control the three-level bidirectional DC-AC module (30) to convert a DC voltage of the power battery (10) into an AC voltage.