Abstract:
PROBLEM TO BE SOLVED: To provide a hybrid vehicle that properly prohibits driving, according to a requirement for remaining fuel quantity or a requirement for electric storage capacity of an electric storage device, and lifts the prohibition. SOLUTION: When fuel remaining quantity Qf is less than a threshold Qref, and storage ratio SOC is less than a threshold Sref, value 1 is set to a driving prohibition flag Fdrv to prohibit driving (S220), and thereafter, when value 1 is set to a feed flag Ff by refueling or, value 1 is set to a charge flag Fc by charging, and it is determined that the remaining fuel quantity Qf is a threshold Qstart or more, or the storage ratio SOC is a threshold Sstart or more, value 0 is set to the driving prohibition flag Fdrv (S260). According to this, when substantial refueling or substantial battery charge is performed, the driving prohibition is released to allow the vehicle to travel to a gas station or a chargeable point near the vehicle. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a malfunctions detecting device in which constitution to detect malfunctions of an electrical circuit is simplified, to provide a power source supply system which applies the malfunctions detecting device and also contributes improvement of its performance, to provide a vehicle mounting the power source supply system, and to provide a malfunctions detecting method which detects the malfunctions of the electrical circuit using a simple technique. SOLUTION: The power supply system supplies electric power to a generator 20 from a battery 50 through a power supply circuit 2. A shunt resistance 30a is interposed at a side of system main relays 12a and 12b of a high-voltage cable 14, while a shunt resistance 30b is done at a side of a boosting circuit 16 of the high-voltage cable 14. A current sensor 40 measures a value of a current flowing into the system main relay 12b, and inputs to a malfunctions detecting portion 44. The malfunctionsdetecting portion 44 distinguishes and detects the malfunctions of the system main relay 12a or 12b, the malfunctions of the high-voltage cable 14, and the malfunctions after the boosting circuit 16, based on the value of the current. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To improve evacuation traveling capacity of a hybrid vehicle when an abnormality occurs in a rotating electric machine.SOLUTION: When an abnormality of a motor generator MG2 is detected, an evacuation traveling mode is set as a traveling mode by a control device 50 for a hybrid vehicle 100. When state quantity indicating a charge state of an electric storage device B exceeds a predetermined value in the evacuation traveling mode, the control device 50 executes lifting control for controlling a motor generator MG1 so that torque is generated in a direction of increasing the speed of an engine 2. When traveling driving force is requested during execution of the lifting control, the control device 50 causes the engine 2 to start and executes depressing control for controlling the motor generator MG1 so that torque is generated in a direction of decreasing the speed of the engine 2.
Abstract:
PROBLEM TO BE SOLVED: To properly prevent a high voltage system from resulting in an overvoltage. SOLUTION: When an electric capacity SOC of a slave battery is equal to or lower than a predetermined electric capacity SOCRef (S100), a slave-side step-up/down converter is controlled by switching so that the slave battery is charged along with switching of usual frequency of a transistor (S110). When the electric capacity SOC is larger than the predetermined electric capacity SOCRef, the slave-side step-up/down converter is controlled by switching so that the slave battery is charged by a charging amount smaller than a charging amount for control when the electric capacity SOC is equal to or less than a predetermined electric capacity SOCRef in such a way that the electric capacity of the slave battery does not exceed a permissible electric capacity along with switching of frequency higher than the usual frequency of transistor (S120). Thereby, the high voltage system at the high voltage side can be prevented more properly from resulting in an overvoltage. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To operate a certain load without performing any communication between Electronic Control Units also after formation of an interception condition of switch in a power supply system in which a plurality of loads controlled by a separate Electronic Control Unit are connected to a common power supply through a switch. SOLUTION: Communication between Electronic Control Units is stopped in response to an ignition off (S100) corresponding to a formation of interception condition of a switch accompanying a stopping of a first load (S110). A second load connected to the power supply in common with a first load through the switch can be operated after stopping of the first load without performing any communication between Electronic Control Units by setting an off-delay ranging from the formation of the interception condition to the shut-off of the switch by Electronic Control Unit for controlling the first load and the switch (S120). COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To prevent insufficiency of the electric energy by regulating the pressure in a fuel tank. SOLUTION: In a hybrid automobile, when the voltage E of a low-voltage battery exceeds the caution-needed reference value Eth1, a negative pressure pump is operated by the regular power consumption (Step S120). When the voltage E exceeds the low-charging reference value Elow but below the caution-needed reference value Eth1, the negative pressure pump is operated by the power consumption smaller than the regular value (Step S130). When the voltage E is determined to be lower than the low-charging reference value Elow, the operation of the negative pressure pump is stopped (Step S135). Therefore, when the pressure regulation in a fuel tank is completed, the voltage of at least the low-charging reference value Elow can be accumulated in the voltage E of the low-voltage battery, and insufficiency of the electric energy can be prevented by regulating the pressure in the fuel tank. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To cool a secondary battery more properly by detecting the temperature of a reactor. SOLUTION: A drive device decides the necessity of cooling for the battery when a temperature-rise ratio ΔTr per unit time of the temperature Tr of the reactor is a threshold ΔTref1 or more even when the temperature Tr of the reactor for a step-up converter is the threshold Tref1 or more and the temperature Tr of the reactor is less than the threshold Tref1, and a cooling fan cooling the battery is driven so as to reach the quantity of an air blast at a higher level as time when the decision continues becomes longer (S120 to S160). Accordingly, the battery can be cooled without generating a delay in the cooling for the battery, enlarging the bulk of the cooling fan and increasing the consumption power of the cooling fan more than required. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To enhance charging efficiency of a plurality of power accumulators for relation with the temperature of the power accumulators, without computing the acceptability of charging at each power accumulator, when the plurality of power accumulators are charged in order, in a charging system. SOLUTION: A charging system includes a charging circuit which charges three power accumulators, i.e. batteries, in order from a commercial power supply, a temperature sensor which detects the temperature of each battery, and a control section. The control section has a selecting means, a charge control means and a battery temperature control means. The selecting means selects a battery to be charged preferentially out of yet to be charged batteries. The charge control means controls the charging circuit which charges the battery to be preferentially charged. The battery temperature control means cools or warms a battery which is not charged yet during charging operation of the battery to be charged preferentially, and the detection temperature of which is shifted from a preset temperature or the temperature range to the high-temperature side or the low-temperature side. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an abnormality decision device with which a plurality of fault modes can precisely be detected in an early stage, and to provide a vehicle. SOLUTION: The vehicle 100 is provided with a DC power supply B, a voltage converter 20 converting voltage VL from the DC power supply B into voltage VH higher than voltage VL, and a connection part 40 which can connect a path connecting the DC power supply B and the voltage converter 20 to three stages of an open state, a preliminary connection state and a connection state in accordance with a control signal. A current sensor 11 and voltage sensors 10, 21 and 13 are applied to detectors detecting the state of the vehicle. A controller 30 determines abnormality of the voltage converter 20 in accordance with the detected state of the vehicle which the detector detects, while the controller controls the connection part 40 to the open state or the preliminary connection state. It is desirable that the controller 30 determines abnormality of the voltage converter in accordance with the start signal of the vehicle, and controls the connection part 40 to the connection state when the voltage converter is normal. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To effectively prevent behavior variation of a vehicle unexpected by a driver during an abnormality such as a failure in an accelerator opening sensor in a brake hold control device. SOLUTION: This brake hold control device is equipped with a brake actuator 32 equipped with a brake holding solenoid valve for holding braking force of a vehicle, two accelerator sensors 20, 22 for controlling and detecting abnormality that detects an accelerator opening, and a brake ECU 24 in which detection signals from the two accelerator opening sensors 20, 22 are inputted. The brake ECU 24 releases braking force when a predetermined brake hold release condition is satisfied that includes a brake hold releasing accelerator opening condition. In the brake hold releasing accelerator opening condition, both of accelerator openings AP1, AP2 corresponding to the detection signals from both of the two accelerator opening sensors 20, 22 are larger than a predetermined opening. COPYRIGHT: (C)2009,JPO&INPIT