Patent application number | Description | Published |
20110307132 | VEHICLE CONTROL APPARATUS AND VEHICLE CONTROL METHOD - In a vehicle control for a vehicle that includes: an internal combustion engine; a vehicle-driving rotary electric machine that generates drive force on a drive wheel; and an electricity storage device that supplies electric power to the vehicle-driving rotary electric machine, the internal combustion engine includes an exhaust passageway, a catalyst provided in the exhaust passageway, and a heater device that heats the catalyst by using electric power from the electricity storage device. The vehicle control includes determining whether an execution condition that a state of the drive wheel is changing between a slipping state and a gripped state is satisfied; and executing a control for causing the electric power generated by the vehicle-driving rotary electric machine to be consumed by the heater device if the execution condition is satisfied. | 12-15-2011 |
20120125705 | VEHICLE - A vehicle includes a PCU serving as a power control unit controlling the electric power for vehicle running, a battery storing the electric power for vehicle running, and an EHC serving as an electrically heated catalyst. The PCU includes a converter, an inverter, and a positive line and a negative line each connecting the converter and the inverter. The converter boosts a voltage VL output from the battery to a requested voltage value VHsys. The EHC has a positive end connected to the positive line. The EHC also has a negative end connected to the negative line. | 05-24-2012 |
20120323419 | VEHICLE AND METHOD FOR ENERGIZING CATALYST DEVICE - A vehicle includes: a catalyst device configured to be electrically heatable for purifying exhaust gas of an internal combustion engine; a first temperature detection unit for detecting the temperature of the catalyst device; a state-of-charge detection unit for detecting the state of charge of a power storage device; a second temperature detection unit for detecting the temperature of the power storage device; a catalyst power supply device supplying the catalyst device with electric power for heating it; and a controller. The controller calculates first electric power that the power storage device can supply based on the state of charge of the power storage device and an output of the second temperature detection unit, and the controller determines according to an output of the first temperature detection unit whether to cause the catalyst power supply device to supply the catalyst device with the first electric power. | 12-20-2012 |
20130305692 | VEHICLE AND METHOD FOR CONTROLLING CATALYST DEVICE IN TEMPERATURE - A vehicle includes: an engine; an EHC (electrically heated catalyst) electrically heated for purifying exhaust gas of the engine; a temperature sensor for sensing the temperature of the EHC; and an ECU that controls the EHC in temperature. The ECU performs a first estimation process and a second estimation process to estimate the temperature of the EHC and accordingly controls electric power applied to energize the EHC, the first estimation process being performed to estimate the temperature of the EHC based on an output of the temperature sensor before the engine starts, the second estimation process being performed to estimate the temperature of the EHC based on the temperature of the exhaust gas emitted by the engine after the engine is started. | 11-21-2013 |
20130324363 | VEHICLE AND METHOD FOR CONTROLLING VEHICLE - A hybrid vehicle ( | 12-05-2013 |
20140004014 | STRUCTURAL BODY FOR SUPPORTING A CATALYST, AND CATALYTIC CONVERTER | 01-02-2014 |
20140037511 | CATALYTIC CONVERTER - A catalytic converter has a catalyst support that is heated due to supply of electricity, and a pair of electrodes that are disposed so as to contact an outer periphery of the catalyst support as seen in an orthogonal cross-section that is orthogonal to a direction in which exhaust flows. By making a volume resistivity of the electrodes be higher than that of electricity supplying portions of external cables that are connected to the electrodes respectively and are for supplying current to the electrodes, heat generated at the electrodes is provided to the catalyst support, and a generated heat amount of the catalyst support in vicinities of the electrodes is made to be large as compared with a generated heat amount at an inner portion of the catalyst support. | 02-06-2014 |
20140109556 | HYBRID VEHICLE - A hybrid vehicle equipped with an internal combustion engine and a motor-generator for running the vehicle, includes: a power storage device to be supplied to the motor-generator; a current leakage detection circuit detecting a decrease in insulation resistance, the current leakage detection circuit being electrically connected to a negative electrode of the power storage device; an electrical heated catalyst device; and a power supply device that converts electric power from the power storage device into energization power of the electrical heated catalyst device by a power conversion path passing through an insulating mechanism. The power supply device includes a switching device. The switching device is opened when the electrical heated catalyst device is energized, and is closed when the decrease in insulation resistance of the electrical heated catalyst device is detected. | 04-24-2014 |
20140125260 | VEHICLE AND METHOD FOR CONTROLLING VEHICLE - A vehicle includes an engine, an EHC (electrical heated catalyst), a first MG (motor generator) generating a counter electromotive force at the time of vehicle collision, a battery, a PCU (power control unit) having a converter and an inverter performing power conversion between the battery and the first MG, and an ECU. The PCU is connected to the battery through an SMR (system main relay). The EHC is connected between the converter and the inverter through EHC relay. The ECU determines whether or not vehicle collision has occurred. When the vehicle collision has occurred, the ECU opens the SMR to electrically separate the battery and the PCU and closes the EHC relay to electrically connect the EHC and the first MG, so that the counter electromotive force generated in the first MG at the time of vehicle collision is consumed at the EHC. | 05-08-2014 |