Abstract: A vehicle management method is provided for managing an electric vehicle by using a management server based on vehicle-specific ID information that defines a condition of use transmitted from an onboard controller. The vehicle management method includes acquiring vehicle ID information from the electric vehicle by using the management server; determining the vehicle ID information to be valid if the vehicle ID information acquired falls within a use period set in advance and determining the vehicle ID information to be invalid if the vehicle ID information acquired falls outside a use period set in advance; and applying a prescribed limitation to charging of a battery of the electric vehicle having the vehicle ID information upon determining that the vehicle ID information is invalid.

Abstract: A vehicle management method is provided for managing an electric vehicle by using a management server based on vehicle-specific ID information that defines a condition of use transmitted from an onboard controller. The vehicle management method includes acquiring vehicle ID information from the electric vehicle by using the management server; determining the vehicle ID information to be valid if the vehicle ID information acquired falls within a use period set in advance and determining the vehicle ID information to be invalid if the vehicle ID information acquired falls outside a use period set in advance; and applying a prescribed limitation to charging of a battery of the electric vehicle having the vehicle ID information upon determining that the vehicle ID information is invalid.

Abstract: A device for restricting movement of a vehicle during connection of a charging cable, the vehicle being equipped with a battery chargeable from an external power source via the charging cable, the device including a charging cable connection detecting section that detects that the charging cable is in a connection state, a vehicle body movement detecting section that detects movement of a vehicle body of the vehicle based on moving speed and moving distance of the vehicle, and a braking section that brakes the vehicle when the movement of the vehicle body is detected while the charging cable is in the connection state based on signals from the charging cable connection detecting section and the vehicle body movement detecting section.

Abstract: A battery charging system includes a battery, a load and a controller to control supply power to be supplied from an external power source to the battery and the load, in accordance with a request charging power and a request load power. The controller limits power supplied from the external power source to the battery to an allowable battery power, and distributes the supply power from the external power source between the battery and the load in a state holding limitation of limiting the supply power from the external power source to the allowable battery power when a request for the supply of power to the load is generated.

Abstract: A torque response control apparatus for an electric motor of a vehicle comprises a motor torque response control means that is configured to carry out finding a difference between a required acceleration that is variable in accordance with a change of a vehicle driving condition and an actual acceleration that is obtained, at the time of the change of the vehicle driving condition, with the aid of a torque characteristic of the electric motor, the difference being caused by the torque characteristic of the electric motor in which the maximum torque is varied in accordance with a rotation speed of the electric motor; and controlling the torque response of the electric motor in a manner to cause a driver to feel the difference of the actual acceleration from the required acceleration to be small by compensating the difference between the required acceleration and the actual acceleration.

Abstract: A device for restricting movement of a vehicle during connection of a charging cable, the vehicle being equipped with a battery chargeable from an external power source via the charging cable, the device including a charging cable connection detecting section that detects that the charging cable is in a connection state, a vehicle body movement detecting section that detects movement of a vehicle body of the vehicle based on moving speed and moving distance of the vehicle, and a braking section that brakes the vehicle when the movement of the vehicle body is detected while the charging cable is in the connection state based on signals from the charging cable connection detecting section and the vehicle body movement detecting section.

Abstract: In an electrically driven vehicle propelled by an electric machine (motor)equipped with a collaborative braking system of regenerative and frictional braking capacities, in order to achieve the “rollback prevention” at starting on an sloping road, when the regenerative braking is not available due to charging restriction to battery, frictional braking is used instead of regenerative braking and wheels are (automatically, i.e. not manually by driver) braked with friction to prevent the rollback. Moreover, in addition to braking wheels by frictional braking, further control is performed to adjust and match the magnitude of frictional braking force to a braking force in accordance with the starting operation. Thus, at the time of rollback prevention by the frictional braking as well, the similar prevention of rollback will be possible as the prevention by way of regenerative braking such that the effect of rollback prevention may be achieved without a feel of discomfort.

Abstract: A vehicle speed VSP enters a creep-cutoff-prohibiting speed region lower than V1 with a forward creep torque being outputted (t1), and then this state continues for a time duration set corresponding to a timer value NTM1 (t2). At this time, a creep cutoff is prohibited by setting a creep-cutoff-prohibition flag NFLAG at “1”. A braking force becomes larger than or equal to a creep-cutoff-permitting braking-force value to satisfy a creep-cutoff permitting condition related to the braking force (t3) while a creep-cutoff permitting condition related to the vehicle speed has been satisfied because of almost zero of the vehicle speed VSP. In response thereto, the creep-cutoff permitting flag FLAG is set at 1 at t4. However, the creep toque continues to be outputted also after t4 without the creep cutoff, so that a torque reduction accompanied with strangeness feeling can be prevented.

Abstract: A vehicle moves unintentionally in a downwardly-reverse direction with a forward creep torque being outputted as shown by a time variation of vehicle speed VSP, and a braking is applied at timing t3 in order to prevent this downward movement. In this case, the downward movement in the reverse direction is detected at timing t1, and then this state continues for a duration set corresponding to a timer value NTM1. At timing t2, a creeping-cut is prohibited by setting a creeping-cut-prohibition flag NFLAG at “1”. At timing t3, the braking is started in order to prevent the reverse-directional downward movement. Thereby, at timing t5, the vehicle speed VSP becomes near 0. In response thereto, a conventional creeping-cut permitting flag FLAG is set at 1. However, the creep toque continues to be outputted also after t5 without the creeping-cut, so that a torque reduction accompanied with strangeness feeling can be prevented.

Abstract: In an electrically driven vehicle propelled by an electric machine (motor)equipped with a collaborative braking system of regenerative and frictional braking capacities, in order to achieve the “rollback prevention” at starting on an sloping road, when the regenerative braking is not available due to charging restriction to battery, frictional braking is used instead of regenerative braking and wheels are (automatically, i.e. not manually by driver) braked with friction to prevent the rollback. Moreover, in addition to braking wheels by frictional braking, further control is performed to adjust and match the magnitude of frictional braking force to a braking force in accordance with the starting operation. Thus, at the time of rollback prevention by the frictional braking as well, the similar prevention of rollback will be possible as the prevention by way of regenerative braking such that the effect of rollback prevention may be achieved without a feel of discomfort.

Abstract: A torque response control apparatus for an electric motor of a vehicle comprises a motor torque response control means that is configured to carry out finding a difference between a required acceleration that is variable in accordance with a change of a vehicle driving condition and an actual acceleration that is obtained, at the time of the change of the vehicle driving condition, with the aid of a torque characteristic of the electric motor, the difference being caused by the torque characteristic of the electric motor in which the maximum torque is varied in accordance with a rotation speed of the electric motor; and controlling the torque response of the electric motor in a manner to cause a driver to feel the difference of the actual acceleration from the required acceleration to be small by compensating the difference between the required acceleration and the actual acceleration.

Abstract: A vehicle moves unintentionally in a downwardly-reverse direction with a forward creep torque being outputted as shown by a time variation of vehicle speed VSP, and a braking is applied at timing t3 in order to prevent this downward movement. In this case, the downward movement in the reverse direction is detected at timing t1, and then this state continues for a duration set corresponding to a timer value NTM1. At timing t2, a creeping-cut is prohibited by setting a creeping-cut-prohibition flag NFLAG at “1”. At timing t3, the braking is started in order to prevent the reverse-directional downward movement. Thereby, at timing t5, the vehicle speed VSP becomes near 0. In response thereto, a conventional creeping-cut permitting flag FLAG is set at 1. However, the creep toque continues to be outputted also after t5 without the creeping-cut, so that a torque reduction accompanied with strangeness feeling can be prevented.

Abstract: A vehicle speed VSP enters a creep-cutoff-prohibiting speed region lower than V1 with a forward creep torque being outputted (t1), and then this state continues for a time duration set corresponding to a timer value NTM1 (t2). At this time, a creep cutoff is prohibited by setting a creep-cutoff-prohibition flag NFLAG at “1”. A braking force becomes larger than or equal to a creep-cutoff-permitting braking-force value to satisfy a creep-cutoff permitting condition related to the braking force (t3) while a creep-cutoff permitting condition related to the vehicle speed has been satisfied because of almost zero of the vehicle speed VSP. In response thereto, the creep-cutoff permitting flag FLAG is set at 1 at t4. However, the creep toque continues to be outputted also after t4 without the creep cutoff, so that a torque reduction accompanied with strangeness feeling can be prevented.

Abstract: A battery charging system includes a battery, a load and a controller to control supply power to be supplied from an external power source to the battery and the load, in accordance with a request charging power and a request load power. The controller limits power supplied from the external power source to the battery to an allowable battery power, and distributes the supply power from the external power source between the battery and the load in a state holding limitation of limiting the supply power from the external power source to the allowable battery power when a request for the supply of power to the load is generated.

Abstract: When a non-running range is changed into a running range at timing t2 during the execution of creeping-cut (t1˜t4), a flag FLAG is set at 1 and a timer T is reset. Then, the timer T is incremented to measure a time elapsed from timing t2. If the running range is a forward range, an electric motor outputs a play-reducing torque in a forwardly rotational direction as shown by a solid line for a time period between timing t2 and timing t3 for which the timer T is smaller than a set time T1, because the flag FLAG indicates 1. If the running range is a reverse range, the electric motor outputs the play-reducing torque in a reversely rotational direction as shown by a dotted line, because the flag FLAG indicates 1.

Abstract: A power generation control system for a fuel cell, including a chargeable/dischargeable unit connected to a fuel cell, for being charged with electric power from the fuel cell and discharging electric power to a load, a target power computing unit for computing a target power to be generated by the fuel cell, a power-lowering request detection unit for detecting a power-lowering request to the fuel cell, an available power detection unit for detecting available power of the chargeable/dischargeable unit, a power extraction limiting unit for limiting electric power to be extracted from the fuel cell based on the power-lowering request detected by the power-lowering request detection unit and the available power detected by the available power detection unit, and a power extraction control unit for controlling electric power to be extracted from the fuel cell based on the target power and an output of the power extraction limiting unit.

Abstract: A control apparatus and a control method are used in a fuel cell system, in which fuel gas and oxidant gas are supplied to a fuel cell stack 1 to generate electric power, a load unit 9 is driven by supplying the generated power thereto, and the generated power is stored in a power storage unit. A control unit 10 sets in advance a margin load power to be supplied from a power storage unit 8 to the fuel cell stack 1 when the load of the load unit 9 changes at a predetermined rate, and computes outputable power of the power storage unit 8. Then, the control unit 10 compares the margin load power and the outputable power to generate an amount judgment result. When the outputable power is larger than the margin load power, the control unit 10 controls the power generation amount of the fuel cell stack 1 such that charged power becomes equal to an electric power difference between the margin load power and the outputable power.

Abstract: A power generation control system for a fuel cell, which includes a rechargeable battery (5), and a controller (10) including: a unit (101) for computing a target power to be generated by a fuel cell (3); a unit (106) for detecting available power of the rechargeable battery (5); a unit (103) for limiting electric power to be extracted from the fuel cell (3) based on the detected power-lowering request and available power, and a unit (105) for controlling power extraction from the fuel cell (3) based on the computed target power and an output of the unit (103) for limiting electric power to be extracted. When a power-lowering request is detected, electric power to be extracted from the fuel cell (3) is reduced by an amount less than the available power of the rechargeable battery (5).

Abstract: A control system for a vehicle, having drive sections (104, 107, 109), a power supply section (101, 103, 107, 109) including an electric power storage unit to supply power to the drive section, includes a demanded power calculating section (1) calculating a demanded drive power required for driving the vehicle, an allowable drive electric power output calculating section (2) calculating allowable drive electric power output of the electric power storage unit necessary for compensating a delayed response of the power supply section with respect to a variation in the demanded power, an available electric power output calculating section (3) calculating available electric power output of the electric power storage unit on the basis of a stage of charge of the electric power storage unit, and a target power calculating unit (4, 7, 9) calculating target power to be produced by the power supply section on the basis of the demanded drive power, allowable drive electric power output and available electric power outpu

Abstract: A control system for a vehicle, having drive sections (104, 107, 109), a power supply section (101, 103, 107, 109) including an electric power storage unit to supply power to the drive section, includes a demanded power calculating section (1) calculating a demanded drive power required for driving the vehicle, an allowable drive electric power output calculating section (2) calculating allowable drive electric power output of the electric power storage unit necessary for compensating a delayed response of the power supply section with respect to a variation in the demanded power, an available electric power output calculating section (3) calculating available electric power output of the electric power storage unit on the basis of a stage of charge of the electric power storage unit, and a target power calculating unit (4, 7, 9) calculating target power to be produced by the power supply section on the basis of the demanded drive power, allowable drive electric power output and available electric power outpu