摘要:
An in-vehicle generator is caused to start regenerative generation when the regenerative generation is possible. This regenerative generation can decrease a generation amount under a vehicle traveling state where fuel is consumed and exhaust gas is emitted, thereby decreasing a load of an engine and amounts of fuel consumption and exhaust emission. The fuel consumption or exhaust emission to be decreased is computed and transmitted to a managing center via an in-vehicle wireless terminal. The managing center provides a driver with a reward such as a service corresponding to the decreased amount of fuel consumption or exhaust emission that is computed in the relevant vehicle. This system enables the regenerative generation to be returned to the driver as an economic value, motivating the driver to decrease the fuel consumption or exhaust emission. This thereby contributes to the conservation of global environment.
摘要:
In a power supply system, a controller is electrically connected with a plurality of switching elements of a multiphase inverter. The controller switches the plurality of switching elements on and off during a multiphase motor being activated. This converts a voltage of a first power storage device into a multiphase AC voltage so as to supply the multiphase AC voltage to the multiphase motor. This also boosts a voltage of a second power storage device to charge the first power storage device by the boosted voltage via multiphase windings of the motor. The controller switches the plurality of switching elements on and off during the multiphase motor being inactivated to thereby boost the voltage of the second power storage device to charge the first power storage device by the boosted voltage.
摘要:
The semiconductor module mounting structure includes a semiconductor module including therein a semiconductor device and electrodes exposed to both surfaces thereof, a wiring substrate having a mounting surface on which the semiconductor module is mounted, and a heat radiating body for dissipating heat from the semiconductor module. The wiring substrate is formed with a ground wiring such that at least a part of the ground wiring is exposed to a back surface thereof opposite to the mounting surface. The exposed surface of the ground wiring exposed to the back surface is in thermal contact with the heat radiating body. At least one of the electrodes exposed to one of the both surfaces opposed to the wiring substrate is in electrical contact with the ground wiring through a through hole formed in the wiring substrate.
摘要:
In a vehicle-mounted power supply system, the automotive generator generates a voltage for charging a first battery. Power conversion circuitry is connected between the first battery and a second battery that is connected to an electrical load to operate in a first mode or in a second mode when power consumption of the load is lower or higher than a specified value, respectively. In the first mode, the power conversion circuitry maintains the voltage at the second battery at a substantially constant level and in the second mode, the voltage at the second battery varies with the voltage at the first battery. In response to a vehicle speed variation, the automotive generator is controlled so that its output voltage is varied at a first rate when power conversion is performed in the first mode and varied at a second rate lower than the first rate when power conversion is performed in the second mode.
摘要:
In a power supply system, a controller is electrically connected with a plurality of switching elements of a multiphase inverter. The controller switches the plurality of switching elements on and off during a multiphase motor being activated. This converts a voltage of a first power storage device into a multiphase AC voltage so as to supply the multiphase AC voltage to the multiphase motor. This also boosts a voltage of a second power storage device to charge the first power storage device by the boosted voltage via multiphase windings of the motor. The controller switches the plurality of switching elements on and off during the multiphase motor being inactivated to thereby boost the voltage of the second power storage device to charge the first power storage device by the boosted voltage.
摘要:
In a vehicle-mounted power supply system, the automotive generator generates a voltage for charging a first battery. Power conversion circuitry is connected between the first battery and a second battery that is connected to an electrical load to operate in a first mode or in a second mode when power consumption of the load is lower or higher than a specified value, respectively. In the first mode, the power conversion circuitry maintains the voltage at the second battery at a substantially constant level and in the second mode, the voltage at the second battery varies with the voltage at the first battery. In response to a vehicle speed variation, the automotive generator is controlled so that its output voltage is varied at a first rate when power conversion is performed in the first mode and varied at a second rate lower than the first rate when power conversion is performed in the second mode.
摘要:
A charged state detecting apparatus for a secondary battery is provided, which can suppress deterioration in the accuracy of detecting a charged state, such as an SOC, the deterioration being caused by variation of a polarization state of a battery. The charged state detecting apparatus stabilizes an amount of polarization of the battery, stops power generation upon confirmation of the stabilization of the polarization amount, and sufficiently alters the current of the battery to sample a required number of data pairs of voltage and current of the battery. Using these data pairs, the charged state detecting apparatus detects a charged state, such as the SOC, of the battery.
摘要:
An apparatus is provided to control a power voltage on a power-supplying line extending from a generator and connecting to a battery and eclectic loads. The apparatus is mounted on a vehicle and comprises a detecting device, a calculator, and a controller. The detecting device detects pairs of voltage and current of the battery. The calculator calculating a control current on the basis of the detected pairs of voltage and current and a target voltage for the power voltage. The pairs of voltage and current are used to calculate an internal resistance and/or a regression line of the battery. The controller controlling a charge and discharge current of the battery on the basis of the control current so that the power voltage is controlled to the target voltage.
摘要:
A charged state detecting apparatus for a secondary battery is provided, which can suppress deterioration in the accuracy of detecting a charged state, such as an SOC, the deterioration being caused by variation of a polarization state of a battery. The charged state detecting apparatus stabilizes an amount of polarization of the battery, stops power generation upon confirmation of the stabilization of the polarization amount, and sufficiently alters the current of the battery to sample a required number of data pairs of voltage and current of the battery. Using these data pairs, the charged state detecting apparatus detects a charged state, such as the SOC, of the battery.
摘要:
An on-vehicle power supplying apparatus comprises a first battery charged by a generator driven by an on-vehicle engine, a second battery connected to an on-vehicle electric load, and a power adjuster adjusting power to be supplied from both of the first and second batteries to the electric load. For adjusting the power, he power adjuster uses a predetermined order in which the first battery is firstly made to supply the power to the electric load, provided that a residual capacity of the first battery is higher than a predetermined threshold, before making both the first and second batteries supply the power to the electric load cooperatively.