Patent application number | Description | Published |
20090030592 | Catalyst Deterioration Detecting Apparatus of Vehicle Internal Combustion Engine - A determining section integrates amount of oxygen that is stored in or released from a exhaust gas purifying catalyst from when a signal from an oxygen sensor is changed until when the signal is changed subsequently, thereby calculating an oxygen storage capacity. The determining section uses the calculated oxygen storage capacity to determine a deterioration state of the exhaust gas purifying catalyst. A limiting section sets, as an allowable change amount, a change amount of the air-fuel ratio that corresponds to an allowable maximum fluctuation amount of a torque of a output shaft of the engine. The limiting section limits a change of the target air-fuel ratio such that a change amount of the target air-fuel ratio due to a change of the signal does not exceed the allowable change amount. Therefore, a deterioration of a drivability while ensuring opportunities of detecting a deterioration of an exhaust gas purifying catalyst is suppressed. | 01-29-2009 |
20100026311 | BOOSTING SYSTEM FAILURE DIAGNOSIS DEVICE, BOOSTING CIRCUIT CONTROLLER AND VEHICLE - A boosting converter and a boosting control unit are mounted on a vehicle. A failure diagnosis unit makes a failure diagnosis of an atmospheric pressure sensor based on a detection result of the atmospheric pressure sensor and on a detection result of an intake pressure sensor detecting engine intake pressure that changes in accordance with a change in the atmospheric pressure. Boosting control unit controls an output voltage of the boosting converter based on the detection result of atmospheric pressure sensor and the detection result of intake pressure sensor. | 02-04-2010 |
20100030412 | ELECTRIC POWERED VEHICLE AND ITS CONTROL METHOD - A shift position of an electric powered vehicle is selected by operating a shift lever and a P position switch. A power source position is selected by operating a power switch. When any of switching elements forming an inverter device is short-circuited, selection of the shift position and the power source position is controlled such that simultaneous selection of a power source position at which inverter control is turned off and a shift position at which a parking lock mechanism is inactivated can be avoided. Therefore, inverter control for reducing short-circuit current caused by back electromotive force derived from rotation of a motor generator after occurrence of short-circuit failure can reliably be executed. | 02-04-2010 |
20100045103 | CONTROL APPARATUS FOR LOAD DEVICE, AND VEHICLE - A control apparatus for a load device mounted on a vehicle is provided with: a temperature sensor detecting a temperature of an inverter; a voltage sensor detecting an applied voltage of the inverter; and a control unit operating the inverter in a case where the applied voltage is a predetermined upper limit value or lower whereas stopping the inverter in a case where the applied voltage is higher than the upper limit value based on a voltage detection result by the voltage sensor. The control unit sets the upper limit value based on temperature dependency of a withstand voltage of an IGBT element included in the inverter and a temperature detection result by the temperature sensor. | 02-25-2010 |
20100072953 | Electrically-driven vehicle and charge control system - An electrically-driven vehicle | 03-25-2010 |
20100107608 | HYBRID VEHICLE AND CONTROL METHOD THEREOF - Upon a system startup, a hybrid vehicle | 05-06-2010 |
20100120581 | VEHICLE, CONTROL METHOD OF VEHICLE, AND DRIVING APPARATUS - Upon determination of the connection between the vehicle side connector | 05-13-2010 |
20100127665 | VEHICLE CHARGING SYSTEM - A charger is operable in a normal mode such that output power matches a provided electric power command value CHPW, and limits the output power to a limit value PS in a saving mode if the electric power command value CHPW exceeds the limit value PS. A charging ECU performs feedback-control for compensating for the electric power command value CHPW such that a charging power monitor value PM sensed by a charging power sensing unit matches a target value PR, and in addition, limits an increase in the electric power command value CHPW such that the electric power command value CHPW does not significantly deviate from the target value PR. As a result, in a vehicle charging system on which an add-on charger having a power saving function is mounted, stabilization of the behavior when the add-on charger returns from a saving operation to a normal operation is allowed. | 05-27-2010 |
20100152940 | VEHICLE, CONTROL METHOD OF VEHICLE, AND DRIVING APPARATUS - Upon the occurrence of the abnormality that the inverter for driving the motor is in the one-phase short circuited state, this inverter is stopped in the three-phase short circuited state and sets the execution torque by subtracting the counter electromotive force application torque that is applied the driveshaft due to the counter electromotive force generated by rotation of the motor and the steering angle application torque corresponding to the steering angle from the torque demand according to the step-on amount of the accelerator pedal. The engine and the inverter for driving the motor is controlled so that the vehicle is driven with the set execution torque. This enables the driving force output to the driveshaft from the engine and the motor to be in accordance with the torque demand. | 06-17-2010 |
20100204860 | CONTROL APPARATUS AND CONTROL METHOD FOR VEHICLE - A plug-in hybrid vehicle has a battery, a DC/DC converter, an auxiliary battery, an auxiliary device, and an ECU. Provided between the battery and the DC/DC converter is an SMR, which serves as a relay to switch between a state in which the battery and each of the DC/DC converter, the auxiliary battery, the auxiliary device, and the ECU are connected to each other and a state in which they are disconnected from each other. When suspending charging of the battery, the ECU executes a program including a step of maintaining the SMR in the closed state. | 08-12-2010 |
20100244558 | POWER SUPPLY APPARATUS FOR VEHICLE - When such a failure as the output from a voltage sensor becomes unavailable is detected, a controller controls a connecting section to disconnected state and controls a voltage converter to voltage unconverted state so that the voltage of a positive pole bus is outputted to the terminal of the voltage converter on the connecting section side, and performs voltage control of the positive pole bus based on the output from a voltage sensor in place of the output from the voltage sensor. Consequently, a power supply unit for a vehicle which can perform escape running while maintaining the traveling performance as much as possible even upon occurrence of failure in the sensor is provided. | 09-30-2010 |
20100289516 | MALFUNCTION DETERMINING APPARATUS AND MALFUNCTION DETERMINING METHOD FOR CHARGING SYSTEM - An ECU executes a program including a step of determining that a pilot wire for transferring a pilot signal CPLT, which is output when a charging cable is connected to a plug-in hybrid vehicle and an external power source, to the ECU is broken, when output of the pilot signal CPLT is currently stopped and a voltage VAC of the external power source (absolute value of voltage VAC) detected by a voltmeter provided within the plug-in hybrid vehicle is greater than zero. | 11-18-2010 |
20100299008 | APPARATUS AND METHOD FOR ACTIVATING SYSTEM OF VEHICLE - Until a vehicle system is activated, a switching circuit outputs a pilot signal to an OR circuit. As a result, lowering of the potential of the pilot signal caused by a resistance circuit is avoided, and the pilot signal is provided in a non-pulsed manner. A power supply CPU is activated in accordance with any one of a connector signal and the non-pulsed pilot signal. When the vehicle system is activated, the switching circuit switches an output destination of the pilot signal to the resistance circuit. | 11-25-2010 |
20100318250 | CHARGING CONTROL APPARATUS FOR POWER STORAGE DEVICE AND METHOD FOR CONTROLLING CHARGING OF POWER STORAGE DEVICE - In an external charging mode of a plug-in hybrid vehicle, electric power from an external power supply electrically connected to a connector is converted and supplied to a power line electrically connected to a battery and an electric air-conditioning device. If charge allowable power of the battery is smaller than or equal to a prescribed value when the electric air-conditioning device is operated, a DFR is opened to stop electric power supply from the external power supply and drive the electric air-conditioning device by electric power of the battery. As a result, even if the consumed power of the electric air-conditioning device is suddenly decreased, the inflow of surplus electric power that cannot be absorbed by the battery from the external power supply can be prevented. | 12-16-2010 |
20110101915 | POWER SUPPLY SYSTEM OF VEHICLE - A charging system of a vehicle for charging a vehicle-mounted power storage device includes a charger configured to receive electric power from a power supply external to the vehicle for charging the power storage device, a charging power sensing portion for sensing charging power supplied to the power storage device, and a charging control device for performing control on the charger by generating a power command value for the charger based on a target value. The charging control device detects a difference between charging power sensed by the charging power sensing portion and the target value and determines presence/absence of abnormality of the charger based on the detected difference. | 05-05-2011 |
20110127956 | CHARGING APPARATUS FOR VEHICLE AND METHOD FOR CHARGING VEHICLE - An ECU detects a rated current that can be supplied from a power supply to a power storage device, based on a pilot signal. If a combination of detected values of a voltage; the rated current and a power supply frequency matches a predefined combination, the ECU executes charging with a voltage, a current and a frequency in accordance with the combination. On the other hand, if it is determined that the combination of the voltage, the rated current and the frequency does not match any one of predefined combinations and if it is determined that the power supply itself is normal, the ECU executes charging by limiting a charging current to a predefined minimum rated current value. If it is determined that the combination of the voltage, the rated current and the frequency does not match any one of predefined combinations and if it is determined that the power supply is abnormal, the ECU prohibits charging. | 06-02-2011 |
20110227534 | VEHICULAR CHARGING SYSTEM - A charging ECU causes a charger to perform quick charging until a state of charge of a power storage device reaches a predetermined state. The charging ECU causes the charger to perform additional charging during which charging progresses more slowly than the quick charging, when the state of charge comes closer to full charge than the predetermined state. The charging ECU stops charging of the power storage device by the charger when the state of charge of the power storage device reaches a charging stop threshold value during the additional charging, and stops charging of the power storage device by the charger when a time of the additional charging exceeds a predetermined time even if the state of charge of the power storage device does not reach the charging stop threshold value. | 09-22-2011 |
20110285350 | CHARGING SYSTEM FOR VEHICLE - A charge control device includes a charge power detection unit for detecting charge power supplied to a power storage device; a target value determination unit for determining a target value of the charge power to the power storage device; a first feedback control unit for correcting the target value based on the difference between the charge power and the target value to generate a power command value; a supply power detection unit for detecting supply power output from the charger; a guard target value determination unit for determining a guard target value corresponding to an upper limit value of the power command value based on allowable power of a system for charging; a second feedback control unit for correcting the guard target value based on the difference between the supply power detected by the supply power detection unit and the guard target value; and an upper limit guard processing unit for limiting the target value corrected by the first feedback control unit based on the guard target value corrected by the second feedback control unit. | 11-24-2011 |
20110307136 | DEVICE AND METHOD FOR CONTROLLING VEHICLE - An ECU executes a program including the steps of: setting a target boost voltage to a maximum value when a request for changing a sub power supply is made; temporarily increasing discharge electric power of a main power supply and then restricting discharge electric power of the sub power supply before switching; shutting off a gate of a converter on the sub power supply side; performing processing for shutting off an SMR corresponding to the sub power supply before switching; connecting an SMR corresponding to a sub power supply after switching when an absolute value of a current is equal to or lower than a predetermined value; canceling shut-off of the gate of the converter on the sub power supply side; canceling temporary increase in discharge electric power of the main power supply and restriction of discharge electric power of the sub power supply; and canceling the setting of the maximum value as the target boost voltage. | 12-15-2011 |
20110309793 | CHARGING SYSTEM FOR VEHICLE AND METHOD FOR CONTROLLING CHARGING SYSTEM - A charge control device includes a charge power detection unit for detecting charge power supplied to a power storage device; a target value determination unit for determining a target value of the charge power to the power storage device; a feedback control unit for correcting the target value based on a difference between the charge power and the target value to generate the power command value; a supply power detection unit for detecting supply power output from the charger; and a charge abnormality monitoring unit for, in a case where the charge power is decreased below a first threshold value and the supply power is decreased below a second threshold value, confirming a diagnosis that an abnormality occurs in the charger when the target value falls within an abnormality detectable range, and suspending performing a diagnosis of an abnormality in the charger when the target value is out of the abnormality detectable range. | 12-22-2011 |
20120313581 | VEHICLE - A vehicle is a vehicle in which a high-voltage power supply can be charged with electric power from an external power supply. In a travel mode, a main microcomputer (MMC) of a controller outputs a request signal requesting to forcibly turn a plug-in main relay (PIMR) on to a sub-microcomputer (SMC), in order to activate a charging system that is essentially not required to be activated. Upon receiving the request signal, the SMC outputs a signal for turning the PIMR on to the PIMR. If the MMC does not receive electric power from a low-voltage power supply via the PIMR after outputting the request signal, the MMC determines that there is an abnormality in an activation circuit for the charging system, and alerts a user. | 12-13-2012 |
20130106172 | ELECTRICAL-POWER-FEED CONNECTOR AND ELECTRICAL POWER SOURCE | 05-02-2013 |
20130264867 | VEHICLE AND METHOD FOR CONTROLLING VEHICLE - A vehicle includes: a power storage device; a charging device that receives electric power from outside the vehicle and charges the power storage device; an auxiliary device that receives the electric power from the power storage device or from outside the vehicle; and a control device. When there is a request for operating the auxiliary device during execution of charging of the power storage device by the charging device, the control device continues operation of the auxiliary device even if input of the electric power from outside is discontinued. When there is no request for operating the auxiliary device during execution of charging of the power storage device by the charging device, the control device separates the power storage device from the charging device and the auxiliary device in response to discontinuation of input of the electric power from outside. | 10-10-2013 |
20130271086 | Electric Power Supply System and Vehicle Having the Same Mounted Therein, and Method of Controlling Electric Power Storage Device - An electric power supply system for supplying a load device with driving electric power includes an electric power storage device and an ECU. The electric power storage device includes a CID configured to interrupt an electrical conduction path of the electric power storage device in response to the electric power storage device having an internal pressure exceeding a rated value. The controller calculates a voltage variation length corresponding to an integral of an amount by which a voltage applied to the load device varies in magnitude and a current variation length corresponding to an integral of an amount by which a current input/output to/from the electric power storage device varies in magnitude for each sampling period for a predetermined period of time. Then, the ECU determines whether or not the CID has been operated, based on the voltage variation length and the current variation length. | 10-17-2013 |
20130300363 | VEHICLE AND VEHICLE CONTROL METHOD - A vehicle that is chargeable using power from an external power source includes: a chargeable electric storage device; a charging device that charges the electric storage device by using the power from the external power source; and a control device that, based on maximum supply power that is able to be supplied to the electric storage device and based on actual charge power actually supplied to the electric storage device, calculates a shortfall with respect to charge power supplied to the electric storage device in a case where charging is performed at the maximum supply power, and stores information relating to a causal factor for the shortfall. | 11-14-2013 |
20130311021 | VEHICLE AND VEHICLE CONTROL METHOD - A vehicle includes: an electrical storage device configured to supply electric power to a power receiving system outside the vehicle; a power generating device configured to supply electric power to the electrical storage device and the power receiving system; an engine that is a power source of the power generating device and that has a catalyst for purifying exhaust gas; and a control device. The control device is configured to control the vehicle such that a catalyst temperature becomes a first target value when there is a request to warm up the catalyst while the vehicle is travelling, and the control device configured to control the vehicle such that catalyst temperature becomes a second target value different from the first target value when there is a request to warm up the catalyst while electric power is being supplied to the power receiving system. | 11-21-2013 |
20140015485 | CHARGING DEVICE FOR VEHICLE, VEHICLE EQUIPPED WITH CHARGING DEVICE, AND OFFSET CORRECTION METHOD FOR CURRENT SENSOR - A vehicle is configured to be able to charge an electrical storage device using an external power supply outside the vehicle. A charger receives electric power supplied from the external power supply to charge the electrical storage device. A current sensor detects a current input to or output from the electrical storage device. During external charging, when the charger and the auxiliary load are turned off and a determination condition for determining that the current (IB) is zero on the basis of the value detected by the current sensor is satisfied, the controller carries out offset learning of the current sensor. | 01-16-2014 |
20140022681 | POWER SUPPLY SYSTEM, VEHICLE INCORPORATING THE SAME AND METHOD FOR CONTROLLING POWER SUPPLY SYSTEM - A power supply system has a power storage device and an ECU, and supplies driving electric power to a load device. The power storage device includes an interrupting device configured to interrupt a conduction path of the power storage device. The load device includes a voltage sensor for detecting a voltage applied to the load device, and supply of electric power from the load device to the power storage device is stopped in response to a failure of the voltage sensor. Where the voltage sensor has failed, the ECU determines presence or absence of activation of the interrupting device, based on a variation length of an actual current that is input to or output from the power storage device and a variation length of a command current set in accordance with requested electric power requested based on a user's operation. | 01-23-2014 |
20140042983 | CONTROL DEVICE FOR VEHICLE - In a vehicle including a charge circuit for carrying out external charging to charge a vehicle-mounted battery with a power supply external to the vehicle, a vehicle ECU. determines that there is an impedance error when a state where a reduction width of an input voltage Vin applied to the charge circuit from the power supply external to the vehicle is exceeding a threshold width ΔV continues for a predetermined time, and outputs a first termination instruction to a charger ECU. The charger ECU receiving the first termination instruction causes the charge circuit to stop to terminate external charging. The charger ECU controls the charge circuit such that, when the input voltage Vin falls down to a threshold voltage V1 the current flowing through an external power supply system is reduced to suppress further reduction in the input voltage Vin. | 02-13-2014 |
20140103883 | POWER SUPPLY DEVICE OF VEHICLE - A vehicle includes a first battery; a converter; a second battery connected to an electric load in parallel with the converter; a charging device charging the first battery or the second battery using an external power supply of the vehicle; an electrical leakage detection device connected to the first battery and detecting electrical leakage; and a control device, when the second battery is charged using the charging device, causing one of electrodes of the first battery and one of electrodes of the second battery to be connected to each other, and determining based on a detection result by the electrical leakage detection device whether electrical leakage occurs or not. | 04-17-2014 |
20140111120 | VEHICLE, POWER SUPPLY SYSTEM, AND METHOD FOR CONTROLLING POWER SUPPLY SYSTEM - When an ECU disconnects a second power storage device BAT | 04-24-2014 |
20140125281 | CHARGING DEVICE FOR POWER STORAGE DEVICE AND VEHICLE MOUNTED WITH THE SAME - A vehicle includes a power storage device, an electric power feeding device, and an ECU, with the power storage device chargeable with electric power from an external power supply. The ECU sets a charging start time using an estimated charging time in accordance with a scheduled charging end time which is input by a user, and uses the electric power feeding device to start a charging operation of charging the power storage device in response to the fact that the charging start time is reached. The ECU performs learning control for a parameter relevant to a factor which affects estimation of the charging time, and estimates the charging time using a learned value of the parameter under the learning control. In this way, the accuracy in estimation of the charging time can be enhanced. | 05-08-2014 |
20140239894 | CHARGING DEVICE FOR ELECTRIC VEHICLE - A charging device is provided that can terminate charging an onboard battery at a charging completion time point which is set by an user. The charging device includes: an AC-DC converter that converts AC power supplied from the external power source to DC power; an AC relay that connects and disconnects the AC-DC converter to and from the external power source; a DC relay that connects and disconnects the AC-DC converter to and from the battery; and a controller that controls the AC and DC relays. The controller is configured to perform: closing the AC relay and specifying a level of power that the external power source can supply: determining a charging start time point from the specified level of power and the charging completion time point; and starting battery charging by closing the AC and DC relays at the determined charging start time point. | 08-28-2014 |
20140288757 | HYBRID VEHICLE - A hybrid vehicle according to one of embodiments of the present invention generates a driving torque using an internal combustion engine, an motor generator, and the like when a shift position is a driving position, the driving torque being determined based on a selected driving mode (e.g., a power mode to give priority to the power, and a normal mode to give priority to fuel consumption) and an accelerator operation amount. On the other hand, when the shift position is a neutral position, the vehicle maintains a rotational speed of the engine at a constant speed (including zero when the engine is stopped) regardless of the accelerator operation amount. When the accelerator operation amount becomes equal to or larger than an accelerator operation amount threshold while the neutral position is selected, the vehicle supplies information indicating that the neutral position is selected to a driver. The accelerator operation amount threshold is determined based on the driving mode. | 09-25-2014 |