Abstract:
PROBLEM TO BE SOLVED: To allow continuous control regarding power supply when switched from a state that one of a plurality of sub power-storage devices is connected to a converter to a state that none of the plurality of sub power-storage devices is connected to the converter, in a power supply system including a main power-storage device and the plurality of sub power-storage devices. SOLUTION: The power supply system includes a main power-storage device BA, the plurality of sub power-storage devices BB1, BB2, and the converter 12B connected to any one of the plurality of sub power-storage devices BB1, BB2. When the SOC (State of Charge) of the selected sub power-storage device in use drops and there is no remaining replaceable sub power-storage device, the selected sub power-storage device in use is disconnected from the converter 12B. On that occasion, a control device 30 generates a substitute value being a substitute of a detected value of a sensor 21B for detecting power parameters of the sub power-storage device so as to control power inputted/outputted to/from the power supply system on the basis of the value. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To suppress output of excessive power from a plurality of secondary batteries of a battery apparatus, and to prevent a motor control unit from setting a target second battery apparatus power again without using a target second battery apparatus power received from a main control unit. SOLUTION: A motor ECU controls a motor, in a range where estimated power consumption Pm2* is equal to or less than the full connection power output limit Woutco (S610 to S614). When a power given by subtracting a target slave-side power Pbs* received through communication from an estimated power consumption Pm2* is equal to or less than a corrected power output limit Wout1mo (Wout+ΔW), the motor ECU controls a boost circuit by using the received target slave-side power Pbs* (S650, S660, S662); and when the power (Pm2*-Pbs*) is larger than the corrected power output limit Wout1mo, the motor ECU sets the power (Pm2*-Wout1mo) to the target slave-side power Pbs* again to control the boost circuit (S650 to S662). COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To suppress a power that is output for traveling from being greatly changed when traveling by hybrid traveling, which travels by using a power to be output from an internal combustion engine and a power to be input/output to/from an electric motor, while there exists a connected secondary battery as a secondary battery connected to a second low voltage system among residual secondary batteries and a state that there does not exist any connected secondary battery. SOLUTION: When an engine is operated (S500), input/output restrictions Win1 and Wout1 of a master battery are set as input/output restrictions Winf and Woutf for control (S540), whether there exits any slave battery connected to a slave side booster circuit. Then, the engine, a motor, a master side booster circuit and a slave side booster circuit are controlled so that a hybrid vehicle can travel while the motor is driven within the range of the set input/output restrictions Winf and Woutf for control. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a power output device capable of properly coping with the operations of a switch for releasing priority of electrically driving mode, when the electrically driving mode has priority. SOLUTION: An engine 22, motors MG1, MG2 and boosting circuits 55, 65 are controlled so that electrically driving travel is given a priority for travel in a first connection state, where relays 56, 66 are turned on, before a storage quantity condition that the storage quantities of batteries 50, 60, 62 become respectively predetermined values or less is satisfied; and the switch 89 is turned off and in a second connection state where the relays 56, 67 are turned on. The engine 22, the motors MG1, MG2 and the boosting circuits 55, 65 are controlled so that electrical driving is not given priority, in the first connection state or in the second connection state, until the switch 89 is turned off, since the switch 89 is turned on before the storage condition is satisfied. As a result, inconvenience where both the relays 66, 67 are turned off, while the switch 89 is turned on, can be avoided. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To suppress deterioration of a secondary battery, when charging the secondary battery by using power from an external power source, in a state that a vehicle is subjected to system-off. SOLUTION: When charging a battery with a power from a commercial power source by a charger after stopping the system of the vehicle, the drive of an air conditioner is inhibited; and the charge of the battery is inhibited (S200 and S210), when the temperature Tb of the battery is under a threshold Tref. As a result, it can suppress the deterioration of the battery 50, which is caused by battery charge with an excessive power, when the temperature Tb of the battery is below the threshold Tref, and can prevent the battery from being charged with an unforeseen excessive power due to load variation in an air conditioner changing, when the air conditioner is driven by using the power from the commercial power source by means of the charger. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a power supply system of a vehicle, which can reduce a decline in power performance of a vehicle when it uses a plurality of power supplies in a switching manner or can prevent an excessive current flow when switching the power supplies. SOLUTION: A power supply system of a vehicle is equipped with inverters 14 and 22 which are supplied with electric power from batteries BA, BB1 and BB2; a connecting section 39B for connecting either one of the batteries BB1 and BB2 selectively to the inverters 14 and 22 so as to supply electric power to them; an air conditioner 40 which is supplied with electric power from the battery BA. When the battery (BB1 or BB2) to be selected is changed, a controller 30 stops the operation of the air conditioner 40 temporarily until the change in the connecting section 39B is completed. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To prevent excessive charging and discharging of an energy storage device, which occur by command value change delay due to transmission delay between controllers when rotational speed of a rotating electrical machine suddenly changes, in an electric vehicle in which the controller generating an input/output power command value of the energy storage device and the controller controlling a power conversion device and the rotating electrical machine are individually arranged. SOLUTION: The controller MG-ECU22 detecting rotational speed of the rotating electrical machine MG2 corrects the input/output power command value of the energy storage devices 10-1 and 10-2, which is set by HV-ECU21 in an original case, in accordance with a change of rotational speed of the rotating electrical machine MG2 without waiting for the change of the input/output power command value from HV-ECU 21 when rotational speed of the rotating electrical machine MG2 suddenly changes. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To notify a driver of history of a modes in which a vehicle travels and of difference of fuel consumption by the modes. SOLUTION: A hybrid vehicle capable of charging an electric storage means with electric power supplied from outside, time-serially stores: a mode setting value; fuel consumption amount; and travel distance; the mode setting value being value 0 when setting a first mode for prohibiting the electric storage means from being charged by electric power acquired by generating a generator with power output from an internal combustion engine, and being value 1 when setting a second mode for allowing the charge of the electric storage means, and in order to time-serially display fuel consumption derived by the fuel consumption amount and the travel distance for every 5 minutes on a meter display unit up until 30 minutes before, visually and distinguishably displays the fuel consumption: by displaying the fuel consumption with color A when all the mode values for every 5 minutes are value 0; by displaying the fuel consumption with color B when all the mode values are value 1; and by displaying the fuel consumption with color C when the mode values include value 0 and value 1. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To take out the output of each secondary battery efficiently in a power supply device for an electric vehicle having a parallel connection of power supply units each including a secondary battery and a voltage converter. SOLUTION: The power supply device includes a temperature sensor for acquiring the temperature of electronic components in a voltage converter of the device, and a control unit for changing the charge/discharge power distribution of secondary batteries of the power supply device. The control unit includes means for: calculating a basic charge/discharge power distribution for calculating the basic charge/discharge power distribution of each secondary battery according to the proportion of residual chargeable/dischargeable capacity of each secondary battery; comparing the temperature of each electronic component acquired by each temperature sensor; decreasing the charge/discharge power distribution of a secondary battery connected with a voltage converter including an electronic component of higher temperature; and increasing the charge/discharge power distribution of a secondary battery connected with a voltage converter including an electronic component of lower temperature. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To suppress charging/discharging by the excessive power of a battery. SOLUTION: When a shift state or a slip state is set (S130, S140), assumed powers Pm1* and Pm2* to be input/output to motors MG1 and MG2 are subtracted from an input/output power Pbat to be input/output to a battery, and averaging is operated to a calculated power deviation Pbd by using a value T2 which is smaller than a value T1 in a normal time as a time constant Tc of averaging (S260, S170), and input/output allowable restrictions Winf and Woutf are set based on input/output restrictions Win and Wout of the battery (S180). Thus, it is possible to suppress charging/discharging by the excessive power of the battery since input/output allowable restrictions Winf and Woutf can be quickly changed in comparison with a normal time. COPYRIGHT: (C)2009,JPO&INPIT