JP2008072878A - Electric car controlling apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric car controlling apparatus that adjusts the depth of charge and discharge of a power storage element in advance so as to be capable of responding to discharge or charge capacity required in future and compensating pantograph separation effectively. <P>SOLUTION: This electric car controlling apparatus is provided with a power storage element 1 that stores electric power, a charge/discharge means 2 that charges and discharges DC power to the power storage element, a DC capacitor 3 that smoothes a DC voltage of the charge/discharge means, an inverter 4 that converts the DC voltage to an AC one, a motor 5 that is driven by the AC voltage, a speed detection means 8 that detects the rotational speed of the motor, and a charge/discharge control means 7 that monitors the DC voltage of the inverter and performs the control of charging the DC power to the power storage element by the charge/discharge means if the DC voltage is higher than a predetermined reference value, discharging the DC power from the power storage element by the charge/discharge means if the DC voltage is lower than the prescribed reference voltage, and charging the power storage element up to the maximum depth of the charge with regard to the depth of the charge and discharge. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an electric vehicle control device that compensates for disconnection by supplying power from a power storage element or regenerating power to the power storage element when the pantograph is disconnected.

  Conventionally, an electric vehicle control device having a configuration as shown in FIG. 7 includes a storage element 1 capable of charging and discharging electric power, such as an EDLC (electric double tank capacitor) and a battery, and a direct current with respect to the storage element 1. A charging / discharging device 2 for charging / discharging electric power, a DC capacitor 3 for smoothing the DC voltage of the charging / discharging device 2, an inverter 4 for converting the DC voltage into an AC voltage, and a motor driven by the AC voltage of the inverter 4 5, the DC voltage sensor 6 for detecting the DC voltage, and the DC voltage of the inverter 4 are monitored. When the DC voltage is higher than a predetermined reference value, the charge / discharge device 2 stores DC power in the storage element 1. A charge / discharge control device 7 for controlling the charge / discharge device 2 to discharge DC power from the storage element 1 when the DC voltage is lower than a predetermined reference value, and the DC power of the overhead wire 15 via the DC capacitor 3. A configuration in which a pantograph 16 that supplies power to the inverter 4.

  In such an electric vehicle control device, when the motor 5 rotates at a low speed and the electric vehicle is running at a low speed and the power running operation is started, the motor 5 requires a large amount of power. Driving voltage is insufficient and the DC voltage decreases. For this reason, the charging / discharging control device 7 determines the decrease in the DC voltage and controls the charging / discharging device 2 so as to discharge from the power storage element 1. Conversely, if the electric vehicle is running at high speed and decelerates, and the motor 5 shifts to the regenerative operation state, the voltage on the DC side of the inverter 4 rises, so the charge / discharge control device 7 moves the charge / discharge device 2 to the charge side. Control is performed so that the storage element 1 is charged with regenerative power by switching. The surplus power is returned to the overhead line 15 via the pantograph 16.

  By the way, while the electric vehicle is traveling, the pantograph fluttering may cause a separation line, or the air section may cause a current collecting shoe separation line. However, when the power storage element 1 is in a discharged state and a disconnection occurs in a state where the powering operation is in progress, the DC power cannot be supplied to the motor 5 during the disconnection period. On the other hand, if the power storage element 1 is in a fully charged state and the disconnection occurs when the motor 5 is in the regenerative operation, there is no place where the regenerative power is consumed, and OVR is generated.

  If the electric vehicle is in a power running operation, a power supply from the power storage element 1, that is, a discharge request is generated, but a charge request for the power storage element 1 is not generated. Even if a charge request to the element 1 is generated, a discharge request is not generated. Therefore, the charge / discharge depth of the electricity storage device 1 is adjusted in advance, charged in advance to a charge depth that allows sufficient discharge in powering operation conditions, and conversely, sufficient charge is possible in regenerative operation conditions. By discharging in advance to a certain discharge depth, the occurrence of OVR as described above can be avoided.

  The present invention has been made in view of the above-described conventional technical problems, and the charge / discharge depth of the power storage element is adjusted in advance so as to correspond to a discharge amount or a charge amount that will be required in the future, and is effectively separated. An object of the present invention is to provide an electric vehicle control device capable of compensating.

  One feature of the present invention is that a storage element for storing electric power, charging / discharging means for charging / discharging the storage element with DC power, a DC capacitor for smoothing a DC voltage of the charging / discharging means, and the DC voltage Is converted to an AC voltage, a motor driven by the AC voltage, speed detecting means for detecting the rotational speed of the motor, and the DC voltage of the inverter is monitored, and the DC voltage is higher than a predetermined reference value. In this case, the charge / discharge means stores DC power in the storage element, and when the DC voltage is lower than a predetermined reference value, the charge / discharge means discharges DC power from the storage element, and the speed An electric charge / discharge control unit configured to control the storage element to charge the charge / discharge depth to the maximum charge depth when a detection speed of the motor by the detection unit is equal to or lower than a low speed determination reference value; A control device.

  Another feature of the present invention is that a storage element for storing electric power, charging / discharging means for charging / discharging the storage element with DC power, a DC capacitor for smoothing the DC voltage of the charging / discharging means, and the DC voltage Is converted to an AC voltage, a motor driven by the AC voltage, speed detecting means for detecting the rotational speed of the motor, and the DC voltage of the inverter is monitored, and the DC voltage is higher than a predetermined reference value. In this case, the charge / discharge means stores DC power in the storage element, and when the DC voltage is lower than a predetermined reference value, the charge / discharge means discharges DC power from the storage element, and the speed An electric vehicle comprising: charge / discharge control means for controlling the storage element to discharge the charge / discharge depth to the maximum discharge depth when a detection speed of the motor by the detection means is equal to or higher than a high speed determination reference value; A control device.

  Another feature of the present invention is that a storage element for storing electric power, charging / discharging means for charging / discharging DC power to the storage element, a DC capacitor for smoothing a DC voltage of the charging / discharging means, and the DC An inverter for converting the voltage into an AC voltage, a motor driven by the AC voltage, speed detecting means for detecting the rotational speed of the motor, and the DC voltage of the inverter is monitored, and the DC voltage is lower than a predetermined reference value. DC power is stored in the power storage element by the charge / discharge means when high, the DC power is discharged from the power storage element by the charge / discharge means when the DC voltage is lower than a predetermined reference value, and An electric vehicle control device comprising charge / discharge control means for controlling to maintain a charge / discharge depth of a power storage element in a certain level range corresponding to a speed detected by the speed detection means.

  Still another feature of the present invention is that a storage element for storing electric power, charging / discharging means for charging / discharging DC power to the storage element, a DC capacitor for smoothing a DC voltage of the charging / discharging means, and the DC An inverter that converts the voltage into an AC voltage, a motor that is driven by the AC voltage, a speed detection means that detects the rotational speed of the motor, a travel database that has previously calculated the location where the separation occurs, and a travel point of the host vehicle The vehicle position detecting means for detecting and the DC voltage of the inverter are monitored, and when the DC voltage is higher than a predetermined reference value, DC power is stored in the storage element by the charge / discharge means, and the DC voltage is When the charging / discharging means discharges DC power from the power storage element when the value is lower than a predetermined reference value, and the travel database is searched, the travel point of the own vehicle An electric vehicle controller having a charge and discharge control means for controlling the charging and discharge depth of the storage element when it reaches the point in the optimum state corresponding to the speed of detection of the speed detecting means.

  Still another feature of the present invention is that a storage element for storing electric power, charging / discharging means for charging / discharging DC power to the storage element, a DC capacitor for smoothing a DC voltage of the charging / discharging means, and the DC An inverter that converts the voltage into an AC voltage, a motor that is driven by the AC voltage, a speed detection unit that detects a rotation speed of the motor, a separation frequency accumulation database that accumulates a separation frequency due to the pantograph fluttering during traveling, Pantograph behavior detecting means for detecting the fluttering behavior of the pantograph, and monitoring the DC voltage of the inverter.When the DC voltage is higher than a predetermined reference value, the charge / discharge means stores DC power in the storage element, When the DC voltage is lower than a predetermined reference value, the charge / discharge means discharges DC power from the power storage element, and the panter The fluttering behavior of the pantograph detected by the rough behavior detecting means is collated with the data in the separation frequency accumulation database to predict the occurrence of the separation of the pantograph, and corresponds to the rotational speed detected by the speed detecting means immediately before the occurrence of the separation. And a charge / discharge control means for controlling the charge / discharge depth of the power storage element to an optimum state.

  According to the electric vehicle control device of the present invention, when the motor speed is equal to or lower than the low speed determination reference value, the storage element is controlled to charge the charging / discharging depth to the maximum charging depth, so that a disconnection occurs during subsequent powering operation. However, the necessary DC power can be sufficiently supplied from the storage element.

  In addition, according to the electric vehicle control device of the present invention, when the motor speed is equal to or higher than the high speed determination reference value, the storage element is controlled to discharge the charge / discharge depth to the maximum discharge depth. Even if it occurs, the regenerative power of the motor can be sufficiently recovered in the storage element.

  In addition, according to the electric vehicle control device of the present invention, the charge / discharge depth of the power storage element is maintained within a certain level range corresponding to the motor speed, so that a disconnection occurs during subsequent powering operation or regenerative operation. However, it is possible to supply DC power from the power storage element to the motor, or recover the regenerative power of the motor to the power storage element to supply insufficient power or recover surplus power.

  Further, according to the electric vehicle control device of the present invention, the charge / discharge depth of the storage element is controlled in advance to the optimum state corresponding to the motor speed before the travel point of the host vehicle reaches the occurrence point by searching the travel database. Therefore, even if disconnection occurs at a corresponding location, DC power can be supplied from the power storage element to the motor, or regenerative power of the motor can be recovered to the power storage element to supply insufficient power or recover surplus power.

  Further, according to the electric vehicle control device of the present invention, the fluttering behavior of the pantograph is collated with the data in the separation line frequency accumulation database to predict the occurrence of the separation line of the pantograph, and the electric power is stored corresponding to the motor speed immediately before the occurrence of the separation line. Since the charge / discharge depth of the element is controlled to the optimum state, even if a disconnection occurs at the relevant location, DC power is supplied from the power storage element to the motor, or the regenerative power of the motor is recovered to the power storage element, or power supply of insufficient power or Surplus power can be recovered.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  (First Embodiment) As shown in FIG. 1, an electric vehicle control apparatus according to a first embodiment of the present invention includes a storage element 1 capable of charging / discharging DC power, such as an EDLC or a battery. A charging / discharging device 2 for charging / discharging DC power to / from the storage element 1, a DC capacitor 3 for smoothing the DC voltage of the charging / discharging device 2, an inverter 4 for converting the DC voltage to an AC voltage, The motor 5 driven by the AC power of the inverter 4, the DC voltage sensor 6 for detecting the DC voltage, and the DC voltage of the inverter 4 are monitored. When the DC voltage is higher than a predetermined reference value, the charge / discharge device 2 The charge / discharge control device 7 that controls the charge / discharge device 2 to discharge the DC power from the power storage device 1 when the DC power is stored in the power storage device 1 and the DC voltage is lower than a predetermined reference value. Detecting speed Capacitors 8, and a configuration in which a pantograph 16 that supplies power to the inverter 4 DC power through the DC capacitor 3 in overhead line 15.

  In the electric vehicle control apparatus of the present embodiment, during power running, DC power is taken from the overhead line 15 via the pantograph 16, converted into AC power of a predetermined frequency and a predetermined voltage by the inverter 4, and supplied to the motor 5 Drive to rotate. When the DC voltage necessary for the rotation of the motor 5 at a predetermined speed is insufficient, DC power is discharged from the storage element 1 and supplied to the motor 5 via the inverter 4. On the other hand, when it is necessary to decelerate or stop during high-speed traveling, the regenerative power from the motor 5 is reversely converted by the inverter 4 to be converted into DC power to the overhead line 15 through the pantograph 16, and the storage element If the storage state of 1 is close to empty, the DC power is recovered and stored.

  The charge / discharge depth control of power storage element 1 in the present embodiment is performed as follows. The charge / discharge control device 7 monitors the amount of electricity stored in the electricity storage element 1 and controls the discharge by the charge / discharge device 2 if it is stored more than the predetermined depth of charge, and conversely less than the predetermined depth of discharge. If the amount of electricity is stored, the DC power of the inverter 4 is charged by the charging / discharging device 2.

  In the case of the present embodiment, if the motor speed is in the low speed range, the charge / discharge control device 7 will increase the motor supply power and shift to the power running operation. It is expected that the need to discharge will increase. Therefore, as shown in FIG. 2, if the motor speed detected by the speed sensor 8 is in such a low speed range SPlow, the charge / discharge control device 7 switches the charge / discharge device 2 to the charge side, and the charge depth Dhigh of the power storage element 1. The power storage device 1 is charged with a sufficient amount of DC power, and even if the pantograph 16 is disconnected during powering operation and the power supply of the DC power from the overhead line 15 is stopped, a sufficient amount of DC power is stored from the power storage device 1. Is controlled so as to be supplied to the inverter 4.

  On the other hand, if the motor speed is in the high speed range SPhigh, the motor speed will be lowered and the operation will shift to the regenerative operation where the regenerative brake is applied. Therefore, the charge / discharge control device 7 switches the charge / discharge device 2 to the discharge side. Even when the discharge depth Dlow of the electricity storage device 1 is increased (that is, the state is discharged to a state close to the sky), the pantograph 16 is disconnected during the regenerative operation, and the regenerative DC power cannot be returned to the overhead line 15. Control is performed so that normal operation can be continued by effectively collecting regenerative power on the power storage element 1 side.

  As described above, in the present embodiment, when the vehicle is stopped or in the low speed range SPlow, the power storage element 1 is charged to the maximum charge depth Dhigh, the DC power can be discharged from the power storage element 1 during power running, and the maximum discharge depth in the high speed range SPhigh. By controlling the electric storage element 1 to be in a state in which energy can be charged during regeneration by discharging to Dlow, it is possible to continue normal driving of the electric vehicle by transferring electric power from the electric storage element 1 even when disconnected. The regeneration rate can also be improved.

  (Second Embodiment) The electric vehicle control apparatus according to the second embodiment of the present invention has the same configuration as that of the first embodiment shown in FIG. 1, but the low speed region SPlow and the high speed region SPhigh. Then, the charge / discharge control device 7 performs the same charge / discharge control as that of the first embodiment shown in FIG. 2, and further adopts the control method shown in FIG. 3 at the time of power running and regeneration. .

  That is, according to the present embodiment, as shown in FIG. 2, the charge / discharge control device 7 charges the electricity storage device 1 to the maximum charge depth Dhigh when the vehicle is stopped or in the low speed region SPlow, and In the high speed region SPhigh, on the contrary, by discharging to the maximum discharge depth Dlow, control is performed so that the energy storage device 1 can be charged with energy during regeneration. And when it transfers to power running operation or regenerative operation actually, as shown in FIG. 3, the charging / discharging control apparatus 7 always has the intermediate value level of the charging / discharging depth of the electrical storage element 1 between the maximum charging depth Dhigh and the maximum discharging depth Dlow. The charging / discharging device 2 is controlled to maintain Dmid. That is, the control is performed so that the portion charged in the low speed range and exceeding the intermediate level Dmid is discharged to the intermediate level Dmid during power running, and the portion discharged in the high speed range is charged to the intermediate level Dmid during regeneration. As a result, normal travel can be continued by power transfer from the storage element even when the line is disconnected, and the regeneration rate can be improved.

(Third Embodiment) As shown in FIG. 4, the electric vehicle control apparatus of the third embodiment is
A storage element 1 capable of charging / discharging DC power, such as EDLC or a battery, a charging / discharging device 2 for charging / discharging the storage element 1 with DC power, and a DC voltage of the charging / discharging device 2 are smoothed. A DC capacitor 3, an inverter 4 for converting DC voltage to AC voltage, a motor 5 driven by AC power of the inverter 4, a DC voltage sensor 6 for detecting DC voltage, and the DC voltage of the inverter 4 are monitored. When the DC voltage is higher than a predetermined reference value, the charging / discharging device 2 stores DC power in the power storage element 1, and when the DC voltage is lower than the predetermined reference value, the charging / discharging device 2 performs direct current from the power storage element 1. Charge / discharge control device 7 for controlling electric power discharge, speed sensor 8 for detecting motor speed, integration of motor speed, signal from ground antenna, or signal from GPS The vehicle position sensor 9 that detects the vehicle position by other methods, the section position database 10 that holds the section position information of the overhead line 10 that is likely to be disconnected, and the DC power of the overhead line 15 through the DC capacitor 3 This is a configuration including a pantograph 16 for supplying power to the inverter 4.

  Also in the electric vehicle control device of the present embodiment, during power running, DC power is taken from the overhead line 15 via the pantograph 16, converted into AC power of a predetermined frequency and a predetermined voltage by the inverter 4, and supplied to the motor 5 Drive to rotate. On the other hand, at the time of regenerative operation, the regenerative power of the motor 5 is reversely converted by the inverter 4 to be converted to DC power and returned to the overhead line 15 through the pantograph 16. The charge / discharge control device 7 monitors the amount of electricity stored in the electricity storage element 1 and controls the discharge by the charge / discharge device 2 if it is stored more than the predetermined depth of charge, and conversely from the predetermined depth of discharge. If the amount of electricity stored is small, the charging / discharging device 2 charges the DC power of the inverter 4.

  In the case of the present embodiment, the charging / discharging control device 7 further collates the traveling position of the own vehicle detected by the own vehicle position sensor 9 with the section position information in the section position database 10 and assumes that the pantograph 16 is disconnected beforehand. Based on the possible section position information, the charge / discharge depth of the electricity storage device 1 is adjusted to be optimum.

  For example, when the motor speed detected by the speed sensor 8 is in the low speed range and tries to pass through the section position, the charge / discharge control device 7 can receive DC power from the overhead line 15 for powering operation by disconnection. Can be expected to disappear. Therefore, in such a case, the charging depth of the electricity storage element 1 is increased before entering the section, and control is performed so that insufficient electricity can be supplied from the electricity storage element 1 when passing through the section.

  Conversely, when the motor speed detected by the speed sensor 8 is in the high speed range and tries to pass through the section position, the charge / discharge control device 7 can expect that the regenerative power cannot be returned to the overhead line 15 due to the separation. Therefore, in such a case, the depth of discharge of the electricity storage device 1 is increased before entering the section, and control is performed so that the regenerative power can be collected in the electricity storage device 1 when passing through the section.

  According to the present embodiment, it is possible to optimize the charge / discharge depth of the electricity storage device 1 from the section position database 10 in which the occurrence location of the separation line has been calculated in advance, and even if the separation line occurs when the section passes, the electric vehicle can travel normally. Can be continued.

  (Fourth Embodiment) FIG. 5 shows an electric vehicle control apparatus according to a fourth embodiment of the present invention. The electric vehicle control apparatus according to the present embodiment includes a power storage element 1 that can charge / discharge direct current power, such as an EDLC or a battery, a charge / discharge device 2 that charges / discharges direct current power to / from the power storage element 1, and A DC capacitor 3 that smoothes the DC voltage of the charging / discharging device 2, an inverter 4 that converts the DC voltage into an AC voltage, a motor 5 that is driven by the AC power of the inverter 4, and a DC voltage sensor 6 that detects the DC voltage When the DC voltage of the inverter 4 is monitored and the DC voltage is higher than a predetermined reference value, the charge / discharge device 2 stores DC power in the power storage element 1 and the DC voltage is lower than the predetermined reference value. A charge / discharge control device 7 that controls the discharge of DC power from the storage element 1 by the charge / discharge device 2, a speed sensor 8 that detects the rotational speed of the motor 5, and a pantograph that monitors the fluctuation of the pantograph 16 The rough behavior sensor 11, the fluctuation behavior of the pantograph 16 before actual occurrence of the separation line, the separation frequency accumulation database 12 that stores one or more kinds of the fluctuation pattern of the pantograph 16, and the DC power of the overhead line 15 Is provided with a pantograph 16 that feeds power to the inverter 4 via the DC capacitor 3.

  In the electric vehicle control apparatus of the present embodiment, during power running, DC power is taken from the overhead line 15 via the pantograph 16, converted into AC power of a predetermined frequency and a predetermined voltage by the inverter 4, and supplied to the motor 5 Drive to rotate. When the DC voltage necessary for the rotation of the motor 5 at a predetermined speed is insufficient, DC power is discharged from the storage element 1 and supplied to the motor 5 via the inverter 4. On the other hand, when it is necessary to decelerate or stop during high-speed traveling, the regenerative power from the motor 5 is reversely converted by the inverter 4 to be converted into DC power to the overhead line 15 through the pantograph 16, and the storage element If the storage state of 1 is close to empty, the DC power is recovered and stored.

  The charge / discharge depth control of power storage element 1 in the present embodiment is performed as follows. The charge / discharge control device 7 monitors the amount of electricity stored in the electricity storage element 1 and controls the discharge by the charge / discharge device 2 if it is stored more than the predetermined depth of charge, and conversely less than the predetermined depth of discharge. If the amount of electricity is stored, the DC power of the inverter 4 is charged by the charging / discharging device 2.

  In the case of the present embodiment, if the motor speed is in the low speed range, the charge / discharge control device 7 will increase the motor supply power and shift to the power running operation. It is expected that the need to discharge will increase. Therefore, the wandering behavior of the pantograph 16 monitored by the pantograph behavior sensor 9 is compared with the wandering pattern of the pantograph 16 before occurrence of the segregation recorded in the segregation frequency accumulation database 12, and the speed sensor If the motor speed detected by 8 is in the low speed range SPlow, the charge / discharge control device 7 switches the charge / discharge device 2 to the charge side, raises the charge depth of the electricity storage device 1 to Dhigh, and supplies a sufficient amount of DC power to the electricity storage device. 1 is charged, and control is performed so that a sufficient amount of DC power can be supplied from the power storage element 1 to the inverter 4 even if the pantograph 16 is disconnected during power running and the supply of DC power from the overhead line 15 is stopped. On the other hand, if the pattern is a wobbling pattern in which separation occurs and the motor speed detected by the speed sensor 8 is in the high speed range SPhigh, the charge / discharge control device 7 switches the charge / discharge device 2 to the charge side, Even if the depth of discharge is lowered to Dlow and a sufficient amount of DC power is discharged from the power storage element 1 and the pantograph 16 is disconnected during the regenerative operation and the regenerative power cannot be returned to the overhead line 15, Control to absorb regenerative power.

  As described above, in the present embodiment, the fluctuation behavior of the pantograph is monitored, and in a situation where disconnection is likely to occur, the storage element 1 is charged to the maximum charge depth Dhigh when the vehicle is stopped or in the low speed range SPlow, and is disconnected during subsequent power running. Even if the electric power is generated, the DC power can be discharged from the power storage element 1 and discharged to the maximum discharge depth Dlow in the high speed region SPhigh. By controlling so that the regenerative energy can be charged to 1, the electric vehicle can continue to travel normally by receiving power from the power storage element 1 even when disconnected, and the regeneration rate can be improved.

  (Fifth Embodiment) FIG. 6 shows an electric vehicle control apparatus according to a fifth embodiment of the present invention. The electric vehicle control device according to the present embodiment includes a power storage element 1, a charging / discharging device 2, a DC capacitor 3, an inverter 4, a motor 5, a DC voltage sensor 6, and charging / discharging, which are the same components as in the fourth embodiment. A control device 7, a speed sensor 8 that detects the rotational speed of the motor 5, and a pantograph 16 are provided.

  The electric vehicle control apparatus according to the present embodiment further includes the own vehicle position sensor 8 similar to that of the third embodiment, the separation line determination unit 13 that determines the separation of the pantograph from the DC voltage, and the correspondence with the own vehicle position. The optimum charge / discharge pattern is calculated and stored, and an optimum charge / discharge pattern calculation / storage unit 14 is provided.

  In the electric vehicle control apparatus of the present embodiment, during power running, DC power is taken from the overhead line 15 via the pantograph 16, converted into AC power of a predetermined frequency and a predetermined voltage by the inverter 4, and supplied to the motor 5 Drive to rotate. When the DC voltage necessary for the rotation of the motor 5 at a predetermined speed is insufficient, DC power is discharged from the storage element 1 and supplied to the motor 5 via the inverter 4. On the other hand, when it is necessary to decelerate or stop during high-speed traveling, the regenerative power from the motor 5 is reversely converted by the inverter 4 to be converted into DC power to the overhead line 15 through the pantograph 16, and the storage element If the storage state of 1 is close to empty, the DC power is recovered and stored.

  The charge / discharge depth control of power storage element 1 in the present embodiment is performed as follows. First, the electric vehicle is run on a test route on an actual route, and during the test run, the optimum charge / discharge pattern calculation / storage unit 14 determines that a disconnection has occurred in the disconnection determination unit 13 and travels immediately before that period. If the speed is low when the speed is low, the charging depth is set to High in the period immediately before the separation point as in the case of the first embodiment. If the speed is high, the operation of setting the discharge depth to Dlow is repeated in the period immediately before the separation point, and the calculation result is stored as an optimum charge / discharge pattern corresponding to the vehicle position.

  Thus, when the optimum charge / discharge pattern calculation / storage unit 14 stores the optimum charge / discharge pattern corresponding to the vehicle position in the test running, the charge / discharge control device calculates the optimum charge / discharge pattern in the subsequent actual running. -Refer to the information of the memory | storage part 14, and drive | work, optimally controlling the charging / discharging depth of the electrical storage element 1 by correspondence with the own vehicle position. Thereby, in the electric vehicle control apparatus of the present embodiment, normal traveling of the electric vehicle can be continued by power transfer from the power storage element 1 even when the pantograph 16 is disconnected, and the regeneration rate can be improved.

The circuit block diagram of the 1st, 2nd embodiment of this invention. The charge / discharge depth control pattern figure of the electrical storage element in the 1st Embodiment of this invention. The charge / discharge depth control pattern figure of the electrical storage element in the 2nd Embodiment of this invention. The circuit block diagram of the 3rd Embodiment of this invention. The circuit block diagram of the 4th Embodiment of this invention. The circuit block diagram of 5th Embodiment of this invention. The circuit block diagram of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Storage element 2 Charging / discharging apparatus 3 DC capacitor 4 Inverter 5 Motor 6 DC voltage detector 7 Charging / discharging control apparatus 8 Speed sensor 9 Own vehicle position sensor 10 Section position database 11 Pantograph behavior sensor 12 Debonding frequency accumulation database 13 Debonding judgment part 14 Optimal charge / discharge pattern calculation / storage unit 15 overhead line 16 pantograph

Claims (6)

A storage element for storing electric power;
Charging / discharging means for charging / discharging direct-current power with respect to the storage element;
A DC capacitor for smoothing the DC voltage of the charging / discharging means;
An inverter that converts the DC voltage into an AC voltage;
A motor driven by the AC voltage;
Speed detecting means for detecting the rotational speed of the motor;
The DC voltage of the inverter is monitored, and when the DC voltage is higher than a predetermined reference value, DC power is stored in the storage element by the charging / discharging means, and when the DC voltage is lower than the predetermined reference value, When the charging / discharging means discharges DC power from the power storage element and the detection speed of the motor by the speed detection means is equal to or lower than a low speed determination reference value, the charge / discharge depth of the power storage element is charged to the maximum charging depth. An electric vehicle control device comprising charge / discharge control means for performing control. A storage element for storing electric power;
Charging / discharging means for charging / discharging direct-current power with respect to the storage element;
A DC capacitor for smoothing the DC voltage of the charging / discharging means;
An inverter that converts the DC voltage into an AC voltage;
A motor driven by the AC voltage;
Speed detecting means for detecting the rotational speed of the motor;
The DC voltage of the inverter is monitored, and when the DC voltage is higher than a predetermined reference value, DC power is stored in the storage element by the charging / discharging means, and when the DC voltage is lower than the predetermined reference value, When the charging / discharging means discharges DC power from the electricity storage element, and the speed detected by the speed detection means is equal to or higher than a high speed determination reference value, the electricity storage element is discharged to a maximum discharge depth. An electric vehicle control device comprising charge / discharge control means for performing control. A storage element for storing electric power;
Charging / discharging means for charging / discharging direct-current power with respect to the storage element;
A DC capacitor for smoothing the DC voltage of the charging / discharging means;
An inverter that converts the DC voltage into an AC voltage;
A motor driven by the AC voltage;
Speed detecting means for detecting the rotational speed of the motor;
The DC voltage of the inverter is monitored, and when the DC voltage is higher than a predetermined reference value, DC power is stored in the storage element by the charging / discharging means, and when the DC voltage is lower than the predetermined reference value, Charge / discharge control means for controlling the charge / discharge means to discharge DC power from the power storage element and to maintain the charge / discharge depth of the power storage element in a certain level range corresponding to the speed detected by the speed detection means. An electric vehicle control device comprising: A storage element for storing electric power;
Charging / discharging means for charging / discharging direct-current power with respect to the storage element;
A DC capacitor for smoothing the DC voltage of the charging / discharging means;
An inverter that converts the DC voltage into an AC voltage;
A motor driven by the AC voltage;
Speed detecting means for detecting the rotational speed of the motor;
A travel database in which the occurrence point of the separation line is calculated in advance,
Own vehicle position detecting means for detecting the traveling point of the own vehicle;
The DC voltage of the inverter is monitored, and when the DC voltage is higher than a predetermined reference value, DC power is stored in the storage element by the charging / discharging means, and when the DC voltage is lower than the predetermined reference value, The charge / discharge means discharges DC power from the electricity storage element, and searches the travel database to determine the charge / discharge depth of the electricity storage element when the travel point of the vehicle reaches the location where the separation line has occurred in advance. An electric vehicle control device comprising charge / discharge control means for controlling to an optimum state corresponding to the speed detected by the speed detection means. A storage element for storing electric power;
Charging / discharging means for charging / discharging direct-current power with respect to the storage element;
A DC capacitor for smoothing the DC voltage of the charging / discharging means;
An inverter that converts the DC voltage into an AC voltage;
A motor driven by the AC voltage;
Speed detecting means for detecting the rotational speed of the motor;
A separation frequency accumulation database for accumulating separation frequency due to fluttering of the pantograph during running,
Pantograph behavior detecting means for detecting the fluttering behavior of the pantograph;
The DC voltage of the inverter is monitored, and when the DC voltage is higher than a predetermined reference value, DC power is stored in the storage element by the charging / discharging means, and when the DC voltage is lower than the predetermined reference value, DC power is discharged from the electricity storage element in the charging / discharging means, and the pantograph fluttering behavior detected by the pantograph behavior detecting means is collated with the data of the separation frequency storage database to predict the occurrence of the separation of the pantograph. An electric vehicle control device comprising charge / discharge control means for controlling the charge / discharge depth of the power storage element to an optimum state corresponding to the rotational speed detected by the speed detection means immediately before the occurrence of the separation line. The derailment frequency accumulation database stores optimum charge / discharge patterns along standard operation curves,
The said charge / discharge control means adjusts so that the charge / discharge depth of the said electrical storage element may be optimized based on the said optimal charge / discharge pattern memorize | stored in the said segregation frequency accumulation | storage database. Electric vehicle control device.