Patent application number | Description | Published |
20080303529 | Vehicle, Power Supply Device of Vehicle, and Current Detection Device - A vehicle comprises a battery, i.e. a power storage unit having a capacity different from a reference capacity, a current sensor for detecting a current inputted to the power storage unit or outputted therefrom and delivering the detection value by converting it depending on the ratio of the capacity of the power storage unit to the reference capacity, and a controller performing current integration by receiving the output from the current detecting section and judging charged state of the power storage unit. The current sensor preferably comprises a sensor for measuring a current flowing through wiring connected with the power storage unit, and a converting section for converting the sensor output depending on the ratio of the capacity of the power storage unit to the reference capacity. When the capacity of the power storage unit is equal to n times of the reference capacity, the converting section delivers the sensor output while multiplying by 1/n. | 12-11-2008 |
20090040068 | Parking Assist Device and a Method for Electric Power Transmission and Reception Between a Vehicle and a Ground Apparatus - A parking assist device has a touch display ( | 02-12-2009 |
20090058326 | Hybrid vehicle and method of controlling the same - A hybrid automobile, wherein a second power source operated with less frequency can be forcibly operated. The hybrid automobile comprises a storage battery as a first power source. The hybrid automobile further comprises an engine and a motor generator or a fuel cell as the second power source. When the hybrid automobile is run by the first power source, a driver can change over an operation mode to a running by the second power source by operating an input device. The hybrid automobile further comprises a notification means for prompting the driver to operate the input device when the non-operating time of the second power source exceeds a predetermined time or longer. Furthermore, the hybrid automobile comprise a control means which, when the remaining amount of energy of the second power source is less than a predetermined amount, stops the changeover of the operation mode from a running by the first power source to the running by the second power source. | 03-05-2009 |
20090096416 | Charging Device, Electric Vehicle Equipped With the Charging Device and Charging Control Method - An HV-ECU acquires electric power information from an electricity transmission line by using a modem. The electric power information includes information regarding the amount of carbon dioxide having been emitted in the generating process of the commercial electric power supplied from an electricity transmission line. When the CO | 04-16-2009 |
20090101421 | Hybrid vehicle and controlling method thereof - When an ignition key is turned ON, a control apparatus predicts the arrival time to a chargeable location (such as home). When the control apparatus determines that the expected arrival time is in the nighttime, it sets SOC control upper and lower limit values for an EV traveling-importance mode that are lower than SOC control upper and lower limit values for an HV traveling-importance mode, and controls an SOC of a battery based on the upper and lower limit values. | 04-23-2009 |
20090115355 | Electric Power Control Device, Electric Powered Vehicle Including the Same, and Method for Controlling Electric Power of Electric Powered Vehicle - A load on a vehicle is connected to first and second neutral points in first and second motor generators through a relay circuit and power output lines. A control device controls inverters depending on a requested voltage of the load on a vehicle such that a potential at the first neutral point becomes higher than a potential at the second neutral point by that requested voltage. | 05-07-2009 |
20090121659 | Charge control apparatus, electrically powered vehicle and electric storage charge control method - When it is determined that an electric storage is to be charged from a commercial power source, a controller sets a control target of a voltage of a power line to be controlled by a boost converter, based on a voltage of the commercial power source. Specifically, the controller sets the control target of the voltage to a level approximately equal to the crest value of voltage. Then, the controller outputs an input permission command to a relay circuit, and controls inverters to execute charging of the electric storage. | 05-14-2009 |
20090146612 | CHARGE CONTROL DEVICE AND VEHICLE USING THE SAME - At the time of charging a power storage device from a commercial power supply, electric power from the commercial power supply is applied to a neutral point of each of first and second motor generators. A rotation preventing control unit ( | 06-11-2009 |
20090159348 | Ac Voltage Output Apparatus and Hybrid Vehicle Including the Same - An AC command voltage obtained by compensating a reference value of a commercial AC voltage output from a multiplication unit using an FB control unit is multiplied by k (0≦k≦1) by a multiplication unit and output to a first inverter control unit, and the remaining part is output to a second inverter control unit. The first and second inverter control units generate signals, based on command voltages obtained by superposing the AC command voltage from an AC output control unit on respective phase command voltages. | 06-25-2009 |
20090160247 | Power Supply Device for Vehicle and Method of Controlling the Same - A power supply device for a vehicle includes a battery (B | 06-25-2009 |
20090306842 | Vehicle preferential treatment system, electrically powered vehicle, server used for vehicle preferential treatment system, and vehicle preferential treatment method - A vehicle preferential treatment system includes a controller mounted in a hybrid vehicle, and a server performing wireless communications with the controller. The controller estimates an SOC of an electric storage (not shown) and transmits the SOC to the server. When the SOC of the electric storage exceeds a reference level, the server gives a preferential treatment to the hybrid vehicle. Then, information on the preferential treatment is transmitted from the server to the controller, and is displayed on a display unit of the controller. | 12-10-2009 |
20100019734 | Charge Control Device and Electrically Driven Vehicle - Commercial AC voltage applied to an input terminal ( | 01-28-2010 |
20100094497 | ELECTRICAL POWERED VEHICLE INCORPORATING MOTOR AND INVERTER, AND CONTROL METHOD THEREFOR - In an electrical powered vehicle including a control device for generating an input/output power command value for a power storage device and a control device for controlling a power conversion device and a rotating electric machine, provided separately, when there is a sudden change in the rotational speed of a rotating electric machine, the input/output power command value of a power storage device intrinsically set by an HV-ECU is corrected corresponding to the change in the rotational speed of the rotating electric machine by a control device MG-ECU detecting the rotational speed of the rotating electric machine, without having to wait for modification of the input/output power command value from the HV-ECU. Accordingly, there can be prevented excessive charging and excessive discharging of a power storage device induced by delay in modifying the input/output power command value caused by transmission delay between control devices when the rotational speed of the rotating electric machine suddenly changes. | 04-15-2010 |
20100127656 | AC MOTOR DRIVE CONTROLLER - An overmodulation PWM controller includes a voltage instruction calculation unit which calculates a d axis voltage instruction and a q axis voltage instruction in which a voltage amplitude exceeds a peak value of a triangular wave carrier; a voltage instruction correction unit which corrects the d axis voltage instruction and the q axis voltage instruction so that a pulse width modulation voltage applied to an AC motor has a fundamental wave amplitude corresponding to the voltage instruction amplitude, according to the synchronization value K which is the number of the triangular carriers per one cycle of the phase voltage instruction; and a voltage instruction conversion unit which converts the corrected d axis voltage instruction and the q axis voltage instruction into a phase voltage instruction. The pulse width modulation voltage is controlled according to the result of comparison between the phase voltage instruction and the triangular wave carrier. | 05-27-2010 |
20100231151 | AC MOTOR DRIVE CONTROL DEVICE AND METHOD - An AC motor drive control device includes a control mode judgment unit that performs a judgment based on required voltage amplitude required by a synchronous AC motor, in order to switch units for applying voltage to the AC motor to one of a rectangular wave voltage phase control unit, an overmodulation control unit, and a PWM current control unit. | 09-16-2010 |
20120297235 | ERROR DETERMINATION DEVICE AND ERROR DETERMINATION METHOD OF CONTROL SYSTEM - When a determination is made that a signal transmitted by a voltage sensor, a second voltage sensor, a current sensor, a temperature sensor, a second temperature sensor, a first CPU, a second CPU and a communication circuit is in error, a third CPU of a motor generator ECU determines that the control system is in error. When a determination is made that the control system is in error, the third CPU determines whether each of the voltage sensors, the current sensor, the temperature sensors, the first CPU, the second CPU and the communication circuit is in error or not. | 11-22-2012 |
20120309588 | ELECTRIC VEHICLE, AND CONTROL APPARATUS AND CONTROL METHOD FOR ELECTRIC VEHICLE - An electric vehicle includes: a motor to propel the electric vehicle; a secondary battery that exchanges power with the motor via a power line; a capacitor that is connected to the power line; a collision detection unit that detects a collision of the electric vehicle; a rotation speed detection unit that detects a rotation speed of the motor; and a control unit that, when a collision of the electric vehicle is detected and the detected rotation speed of the motor equals or exceeds a predetermined rotation speed, controls the motor such that the rotation speed of the motor falls below the predetermined rotation speed and then executes discharge control to discharge the capacitor. | 12-06-2012 |
20120323430 | ELECTRICALLY POWERED VEHICLE AND METHOD OF CONTROLLING THE SAME - An electrically powered vehicle includes a motor generator configured to be capable of transmitting and receiving torque to and from a driving shaft coupled to a driving wheel; a DC power supply including a power storage device; and an inverter for performing bidirectional DC/AC power conversion between the DC power supply and the motor generator. The MG-ECU controls a plurality of power semiconductor switching elements to be turned on/off in accordance with a torque command value and a state value of the motor generator. When an accelerator pedal is released, the MG-ECU controls the inverter to superimpose a DC current component on an AC current of each phase in the motor generator in accordance with the state of charge of the power storage device. | 12-20-2012 |
20120330487 | FAILURE DETECTION DEVICE FOR VEHICLE - A failure detection device for a vehicle that detects a failure of a motor system includes a controller that changes a sensitivity for detection of a failure in the motor system in accordance with at least one of an operational condition of the motor system and a situation in which the motor system is operating. | 12-27-2012 |
20140125264 | CONTROL SYSTEM FOR AC ELECTRIC MOTOR - Fluctuations in output of an AC electric motor are restrained without increasing electromagnetic noise of a boost converter. When subjecting the AC electric motor to rectangular wave voltage control, output torque T is controlled by varying a voltage phase φv. In a region where a voltage phase is large (φv=θ2), fluctuations in torque T relative to changes in a DC voltage VH corresponding to the amplitude of a rectangular wave voltage are larger than in a region where the voltage phase is small (φv=θ1). The AC electric motor is controlled such that the rectangular wave voltage control in a region where voltage phase φv is larger than a limit-phase line PLN indicated by a set of limit phases set for each DC voltage VH is avoided. | 05-08-2014 |
20140159622 | CONTROL SYSTEM FOR AC MOTOR - A converter controls a system voltage, which is a DC link voltage of an inverter, in accordance with a voltage command value. The inverter outputs a rectangular wave voltage having the system voltage as amplitude to an AC motor during application of rectangular wave voltage control. During application of rectangular wave voltage control, a voltage command value for the system voltage is modified such that a current phase on a d-q plane of the AC motor is brought closer to a target current phase line. The target current phase line is set on an advance side relative to an optimal current phase line which is a set of current phases at which output torque is maximized for the same amplitude of a motor current in the AC motor. | 06-12-2014 |
20140175872 | VEHICLE AND CONTROL DEVICE FOR VEHICLE - On a vehicle, a converter converting and outputting a voltage, an inverter converting DC power output from the converter to AC power, and a motor driven by AC power supplied from the inverter are mounted. A control device calculates a requested voltage VHreq as an output voltage from a converter for bringing a degree of modulation Kmd of the inverter closer to a prescribed target degree of modulation Kmd#, calculates from target torque of the motor, a minimum voltage VHmin as a minimum value for an output voltage from the converter which can realize target torque of the motor, and controls the converter such that the output voltage VH from the converter is closer to a value which is greater one of the requested voltage VHreq and the minimum voltage VHmin. | 06-26-2014 |
20140176029 | VEHICLE AND CONTROL DEVICE FOR VEHICLE - On a vehicle, a converter converting and outputting a voltage, an inverter converting DC power output from the converter to AC power, and a motor driven by AC power supplied from the inverter are mounted. A control device for this vehicle controls the inverter in a control mode selected in accordance with a degree of modulation of the inverter, selects a target control mode of the inverter, and varies an output voltage from the converter such that a degree of modulation of the inverter varies until the control mode switches to the target control mode when a current control mode is different from the target control mode. | 06-26-2014 |