Abstract: In accordance with an embodiment, a circuit includes: a battery monitoring circuit configured to monitor a positive supply voltage and a negative supply voltage with respect to a neutral node; an inverter configured to provide a plurality of modulated phase voltages representing a reference voltage vector; and a space vector modulator configured to generate modulated drive signals for the inverter based on the reference voltage vector, where duty cycles of the modulated drive signals depend on the monitored positive supply voltage and the monitored negative supply voltage.

Abstract: A connection structure of a wire harness enables the wire harness to be severed in the event of a vehicle collision. End portions of electric wires are respectively provided with connection end portions in which conductors of the end portions have been subjected to fusing processing, the connection end portion has an extension portion and a protruding portion, the protruding portion is at least partially provided with a tapered portion, the connection end portions are integrally connected to each other by crimping the extension portions from the radial-direction outer side by the connecting member, and at the connection end portion, the crimping of an extension portion to press the tapered portion inserted in a concave portion causes the engagement force between the extension portion and the connecting member to become weaker than the engagement force between the extension portion and the connecting member when applying tension to the electric wires.

Abstract: In a vehicle drive system using a motor for cruising, the connection node of serially-connected first and second batteries is grounded. The operation of an inverter is controlled so that the motor drive voltage is higher than the output voltage of each of the first and second batteries. A battery unit is configured so that third and fourth batteries each in a form of a cartridge are removably loaded, and the loaded third battery is connected in parallel with the first battery and the loaded fourth battery is connected in parallel with the second battery.

Abstract: In a vehicle drive system using a motor for cruising, the connection node of serially-connected first and second batteries is grounded. The operation of an inverter is controlled so that the motor drive voltage is higher than the output voltage of each of the first and second batteries. A balance circuit balances the charged amounts of the first and second batteries by performing charge/discharge control between the first and second batteries.

Abstract: In a vehicle drive system using a motor for cruising, the connection node of serially-connected first and second batteries is connected with the connection node of first and second capacitors of an inverter. The operation of the inverter is controlled so that the motor drive voltage is higher than the output voltage of each of the first and second batteries. A balance circuit balances the voltages of the first and second capacitors by performing charge/discharge control between the first and second batteries.

Abstract: In a vehicle drive system using a motor for cruising, the connection node of serially-connected first and second batteries is grounded. The operation of an inverter is controlled so that the motor drive voltage is higher than the output voltage of each of the first and second batteries. A battery unit is configured so that third and fourth batteries each in a form of a cartridge are removably loaded, and the loaded third battery is connected in parallel with the first battery and the loaded fourth battery is connected in parallel with the second battery.

Abstract: In a vehicle drive system using a motor for cruising, the connection node of serially-connected first and second batteries is grounded. The operation of an inverter is controlled so that the motor drive voltage is higher than the output voltage of each of the first and second batteries. A balance circuit balances the charged amounts of the first and second batteries by performing charge/discharge control between the first and second batteries.

Abstract: In a vehicle drive system using a motor for cruising, the connection node of serially-connected first and second batteries is grounded. The operation of an inverter is controlled so that the motor drive voltage is higher than the output voltage of each of the first and second batteries. The vehicle drive system is configured so that electric power can be supplied, from each of the first and second batteries, to an electric apparatus mounted in a vehicle other than the inverter.

Abstract: A battery unit comprises plural side connection portions which are provided at its both-side end portions in a vehicle width direction and connected to said vehicle-body member, and these connection portions are connected to a high rigidity portion of a vehicle-body member, concretely, to the vehicle-body member at a specified position where floor cross members integrally connected to a vehicle floor panel are located, to the vehicle-body member at a specified position where a torque box is located, or to the vehicle-body member at a specified position where a kick-up portion of the vehicle floor panel is located. Accordingly, the torsional rigidity of the vehicle body can be increased by utilizing the battery unit mounted below the vehicle body floor (vehicle floor panel).

Abstract: Plural battery modules mounted on a first mount portion of a battery unit which is positioned below a front floor portion are arranged in a vehicle longitudinal direction such that the longitudinal direction of each of the battery modules matches a vehicle width direction and the short side of a rectangular section of each of the battery modules extends in a vehicle vertical direction, and plural battery modules mounted on a second mount portion which is positioned below a rear floor portion are arranged in the vehicle width direction such that the longitudinal direction of each of the battery modules matches the vehicle longitudinal direction and the long side of the rectangular section of each of the battery modules extends in the vehicle vertical direction. Accordingly, the plural battery modules can be arranged efficiently.

Abstract: A battery unit comprises plural side connection portions which are provided at its both-side end portions in a vehicle width direction and connected to said vehicle-body member, and these connection portions are connected to a high rigidity portion of a vehicle-body member, concretely, to the vehicle-body member at a specified position where floor cross members integrally connected to a vehicle floor panel are located, to the vehicle-body member at a specified position where a torque box is located, or to the vehicle-body member at a specified position where a kick-up portion of the vehicle floor panel is located. Accordingly, the torsional rigidity of the vehicle body can be increased by utilizing the battery unit mounted below the vehicle body floor (vehicle floor panel).

Abstract: Plural battery modules mounted on a first mount portion of a battery unit which is positioned below a front floor portion are arranged in a vehicle longitudinal direction such that the longitudinal direction of each of the battery modules matches a vehicle width direction and the short side of a rectangular section of each of the battery modules extends in a vehicle vertical direction, and plural battery modules mounted on a second mount portion which is positioned below a rear floor portion are arranged in the vehicle width direction such that the longitudinal direction of each of the battery modules matches the vehicle longitudinal direction and the long side of the rectangular section of each of the battery modules extends in the vehicle vertical direction. Accordingly, the plural battery modules can be arranged efficiently.