JP2008149856A - Alternative power supplying method and alternative power source device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an alternative power supplying method in which there is no fear of erroneous connection and coming off of the connection, not requiring a large space, and capable of supplying electric power in place of an on-vehicle battery by a simple operation when exchanging the on-vehicle battery. <P>SOLUTION: When a vehicular battery B is exchanged, the alternative power supplying method supplies electric power to electric loads 41 to 44 connected to the battery B without passing through an accessory switch 13 and an ignition switch 16 and relays 24 to 27 on behalf of the battery B. At a socket to which the relays should be connected, two pin terminals 51, 53 should be connected on behalf of the relays, and a secondary battery Ba which can discharge electricity from the pin terminals 51, 53 are prepared. The relays are removed, and the pin terminals 51, 53 are connected to the sockets to which the relays should be connected, thereby supplying the electric power from the secondary battery Ba on behalf of the battery B. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an alternative power supply method for supplying power instead of a battery to an electric load including a microcomputer that is always connected to the battery regardless of the operation of the vehicle when the battery for the vehicle is replaced, and the battery It is related with the alternative power supply device which supplies a power supply instead of.

The electrical components mounted on the vehicle are steadily increasing from the aspects of safety, convenience, comfort, and product power, and higher functionality is being promoted in each electrical component. In each electronic control unit (ECU) that controls each electrical component, as one method for realizing higher functionality, learning the driver's habit, etc., it is possible to obtain a natural response of the electrical component without a sense of incongruity It is possible (customization function).
JP 2005-145380 A

In order to learn the driver's habit, it is necessary to store the learned data in the memory built in the electronic control unit, but these memories are volatile, and when the vehicle battery is replaced, The memory contents are erased and reset. Therefore, there is a problem that it takes time and effort to reset the electronic control unit, and the electronic control unit has to be learned again from the beginning.
In order to solve such a problem, it is conceivable to connect other batteries with clips or the like when replacing the vehicle-mounted battery. However, there is a possibility that the clips etc. are easily detached and a ground fault may occur due to a mistaken connection. There are problems.

Patent Document 1 discloses a vehicle uninterruptible battery replacement code configured to be able to supply power from a cigarette lighter of another vehicle through a cigarette lighter of the own vehicle when replacing the vehicle-mounted battery. There is a problem that it is necessary to secure a space for arranging two vehicles, and a long cord is required.
It is also conceivable to install two batteries in the vehicle, but this increases the mounting space, weight and cost, and it is not necessary to do so only for the rare task of battery replacement. It is not acceptable.

The present invention has been made in view of the circumstances as described above, and in the first and second inventions, there is no possibility of incorrect connection and disconnection, no need for a large space, simple operation, It is an object of the present invention to provide an alternative power supply method capable of supplying power in place of a vehicle-mounted battery when replacing the vehicle-mounted battery.
In the third to fifth aspects of the invention, there is no possibility of incorrect connection and disconnection, no need for a large space, and an alternative that can supply power instead of the in-vehicle battery with a simple operation when replacing the in-vehicle battery. An object is to provide a power supply device.

  In the alternative power supply method according to the first aspect of the present invention, when replacing a vehicle battery that supplies power to a plurality of electric loads, neither the accessory switch nor the ignition switch is passed, and the relay is not passed. An alternative power supply method for supplying power instead of the battery to a plurality of electric loads connected to the battery without being connected to a socket to which a relay is to be connected Two pin terminals and a secondary battery that can be discharged from the pin terminals are prepared, the relay is removed, the pin terminal is connected to a socket to which the relay is to be connected, and the battery is connected to the battery from the secondary battery. Instead, power is supplied.

  In this alternative power supply method, when replacing a vehicle battery that supplies power to a plurality of electric loads, the battery does not pass through either the accessory switch or the ignition switch, and does not pass through the relay. Power is supplied to a plurality of connected electric loads instead of batteries. In the socket to which the relay is to be connected, two pin terminals to be connected instead of the relay and a secondary battery that can be discharged from the two pin terminals are prepared. Next, the relay is removed, two pin terminals are connected to the socket to which the relay is to be connected, and power is supplied from the secondary battery instead of the battery.

  An alternative power supply method according to a second aspect of the present invention is a vehicle equipped with a diagnostic connector for diagnosing an electrical system. When replacing a battery that supplies power to a plurality of electrical loads, either an accessory switch or an ignition switch is used. And an alternative power supply method for supplying power instead of the battery to a plurality of electric loads connected to the battery without going through a relay, Two pin terminals to be connected to the two socket terminals connected to the battery and a secondary battery that can be discharged from the pin terminals are prepared, and the pin terminal is connected to the socket terminal of the diagnostic connector In addition, power is supplied from the secondary battery instead of the battery.

  In this alternative power supply method, when replacing a battery that supplies power to a plurality of electric loads of a vehicle equipped with a diagnostic connector for diagnosing an electric system, both an accessory switch and an ignition switch are used. In addition, power is supplied instead of the battery to a plurality of electric loads connected to the battery without going through the relay. Two pin terminals to be connected to two socket terminals connected to the battery of the diagnostic connector and a secondary battery that can be discharged from the two pin terminals are prepared. Next, two pin terminals are connected to the socket terminal of the diagnostic connector, and power is supplied from the secondary battery instead of the battery.

  The alternative power supply according to the third aspect of the invention does not pass through any of the accessory switch and the ignition switch and does not pass through the relay when the vehicle battery for supplying power to a plurality of electric loads is replaced. An alternative power supply that supplies power to a plurality of electrical loads connected to the battery instead of the battery, and is connected to a socket to which a relay is connected, and to be connected in place of the relay A pin terminal, a secondary battery dischargeable from the pin terminal, voltage detection means for detecting the voltage of the secondary battery, and whether or not the voltage detected by the voltage detection means is equal to or higher than the first voltage And a means for prohibiting discharge from the pin terminal when the means determines that the voltage is not equal to or higher than the first voltage, and means for indicating that the means has been prohibited. Wherein the socket to be connected pin terminal is connected, characterized in that is arranged to supply power from the secondary battery.

  In this alternative power supply, when replacing a vehicle battery that supplies power to multiple electric loads, it connects to the battery without passing through either the accessory switch or the ignition switch, and without going through a relay. Power is supplied to a plurality of electric loads instead of batteries. Two pin terminals are connected to the socket to which the relay is to be connected instead of the relay, and the secondary battery can be discharged from the two pin terminals. The voltage detection means detects the voltage of the secondary battery and the determination means determines whether or not the detected voltage is equal to or higher than the first voltage. When it is determined that the determining means is not equal to or higher than the first voltage, the prohibiting means prohibits the discharge from the two pin terminals, and the display notifying means notifies that the discharge is prohibited. Two pin terminals are connected to the socket to which the relay is to be connected, and power is supplied from the secondary battery.

  According to a fourth aspect of the present invention, there is provided an alternative power supply apparatus comprising: a vehicle equipped with a diagnostic connector for diagnosing an electrical system; when replacing a battery that supplies power to a plurality of electrical loads, either an accessory switch or an ignition switch is used. An alternative power supply device that supplies power instead of the battery to a plurality of electric loads connected to the battery without passing through a relay and without passing through a relay, the battery of the diagnostic connector Two pin terminals to be connected to the two socket terminals connected to each other, a secondary battery that can be discharged from the pin terminals, voltage detection means for detecting the voltage of the secondary battery, and the voltage detection means Means for determining whether the detected voltage is equal to or higher than the first voltage; and means for prohibiting discharge from the pin terminal when it is determined that the voltage is not higher than the first voltage. And means for reporting view that said means is prohibited, said the socket terminal pin terminal is connected, characterized in that is arranged to supply power from the secondary battery.

  In this alternative power supply device, when replacing a battery for supplying power to a plurality of electric loads of a vehicle having a diagnostic connector for diagnosing an electric system, neither an accessory switch nor an ignition switch is passed. In addition, power is supplied instead of the battery to a plurality of electric loads connected to the battery without passing through the relay. Two pin terminals are connected to two socket terminals connected to the battery of the diagnostic connector, and the secondary battery can be discharged from the two pin terminals. The voltage detection means detects the voltage of the secondary battery and the determination means determines whether or not the detected voltage is equal to or higher than the first voltage. When it is determined that the determining means is not equal to or higher than the first voltage, the prohibiting means prohibits the discharge from the two pin terminals, and the display notifying means notifies that the discharge is prohibited. Two pin terminals are connected to the socket terminal to supply power from the secondary battery.

  According to a fifth aspect of the present invention, there is provided an alternative power supply apparatus comprising: means for determining whether the voltage detected by the voltage detection means is equal to or higher than a second voltage higher than the first voltage; and the means is not equal to or higher than the second voltage. When the determination is made, the apparatus further comprises means for informing that the voltage detected by the voltage detecting means is low.

  In this alternative power supply apparatus, the determining means determines whether or not the voltage detected by the voltage detecting means is equal to or higher than the second voltage higher than the first voltage, and determines that the determining means is not equal to or higher than the second voltage. At that time, the display notification means notifies that the voltage detected by the voltage detection means is low.

  According to the alternative power supply method according to the first and second inventions, there is no risk of incorrect connection and disconnection, no need for a large space, simple operation, and replacement of the in-vehicle battery. An alternative power supply method that can supply power can be realized.

  According to the alternative power supply devices according to the third and fourth inventions, there is no possibility of incorrect connection and disconnection, no need for a wide space, simple operation, and electric power instead of the on-board battery when replacing the on-board battery. Can be realized.

  According to the alternative power supply device according to the fifth aspect of the invention, there is no possibility of incorrect connection and disconnection, no need for a large space, and simple operation, when replacing the in-vehicle battery, the electric power can be substituted for the in-vehicle battery. An alternative power supply that can be supplied can be realized. In addition, when the battery of the alternative power source is about to run out during the replacement work, the operator can be notified in advance.

Hereinafter, the present invention will be described with reference to the drawings illustrating embodiments thereof.
(Embodiment 1)
FIG. 1 is a block diagram showing a main configuration of a first embodiment of an alternative power supply method and an alternative power supply apparatus according to the present invention.
In this alternative power supply device 50, the voltage detector 54 (voltage detection means) detects the voltage value of the battery Ba serving as an alternative power supply, and the detected voltage value is given to the control unit 55. The anode of the battery Ba is connected to the anode of the diode 62 through the FET 61, and the cathode of the diode 62 is connected to the charge / discharge terminal 53. The anode of the battery Ba is also connected to the charge / discharge terminal 53 through the FET 60.

Each of the gates of the FETs 60 and 61 is connected to the control unit 55, and the FET 60 is turned on, the FET 61 is turned off during charging, and the FET 60 is turned off and the FET 61 is turned on during discharging. An operation unit 59 having an operation button for switching charging / discharging is connected to the control unit 55.
A light-emitting diode 56 is connected between the control unit 55 and the ground terminal 51 to indicate that charging is necessary and that the battery is fully charged, and that the voltage of the battery Ba is insufficient. A light emitting diode 58 and a buzzer 57 for displaying and notifying that Ba is at a low voltage are connected. Power for the control unit 55 is supplied from the battery Ba.

FIG. 2 is a block diagram illustrating an example of an electric system of the vehicle. In this electric system, a cord for causing a drive current to flow through the fuse 7 is connected to the anode of the in-vehicle battery B to the starter 37. The drive current is turned on / off inside the starter 37. A relay 27 for turning on / off the starter 37 is connected to the anode of the in-vehicle battery B through the fuse 7, and the exciting current of the relay 27 is given by turning on the start switch 17.
Further, a relay 26 for turning on / off the ignition device 36 is connected to the anode of the in-vehicle battery B through the fuse 6, and the exciting current of the relay 26 is given by turning on the ignition switch 16.

Further, a relay 25 is connected to the anode of the in-vehicle battery B through the fuse 5 so that an electric load 35 (for example, an air conditioner, a power window, etc.) can be turned on. Is given when the contact 15 of the accessory switch 13 is turned on.
Further, a relay 24 for enabling an electric load 34 (for example, a radio, a car stereo, etc.) to be turned on is connected to the anode of the in-vehicle battery B through the fuse 4. The exciting current of the relay 24 is an accessory. It is given when the contact 15 of the switch 13 is turned on.

Further, the anode of the in-vehicle battery B is connected through a fuse 3 to ECUs (Electronic Control Units) 41 to 44 of an electric load 35 (for example, a timepiece, a power window, etc.). The ECUs 41 to 44... Are supplied with power from the in-vehicle battery B without passing through switches and relays in order to retain the memory of the built-in microcomputer.
Further, a relay 22 for turning on an electric load 32 (for example, a headlight, a room light, etc.) is connected to the anode of the in-vehicle battery B through the fuse 2, and the excitation current of the relay 22 turns on the switch 12. Is given by Needless to say, the electric system of the vehicle includes a large number of fuses, relays, and electric loads in addition to those described above.

FIG. 3 is a perspective view showing a usage pattern of the alternative power supply device 50 according to the present invention.
The casing 63 of the alternative power supply device 50 has a rectangular parallelepiped shape that fits into the socket hole 78 of the relay provided in the casing 79 of the relay box 70 installed in the engine room of the vehicle, and has two pin terminals 51, 53. The pin terminals 51 and 53 are the ground terminal 51 and the charge / discharge terminal 53 shown in FIG.
A buzzer 57 is incorporated in the side surface of the casing 63 of the alternative power supply device 50, and operation buttons and light emitting diodes 56, 58 of the operation unit 59 are provided on the upper surface.
Relays 24 to 30 are respectively inserted into the other socket holes provided in the casing 79 of the relay box 70.

When replacing the in-vehicle battery B, the relay 22 is removed from the casing 79 of the relay box 70, and the alternative power supply device 50 is inserted into the socket hole 78. At that time, as shown in FIG. 4, the pin terminal 51 is connected to the ground side, and the pin terminal 53 is connected to the anode side of the in-vehicle battery B. As a result, the alternative power supply device 50 does not supply power to the electric load 32 regardless of whether the switch 12 is on or off.
Even if the in-vehicle battery B is removed while the alternative power supply device 50 is inserted into the socket hole 78, electric power is supplied from the alternative power supply device 50 to the ECUs 41 to 44.

At this time, if the output voltage of the alternative power supply device 50 is set lower than the voltage of the in-vehicle battery B, it is convenient because no wasteful discharge from the alternative power supply device 50 to the in-vehicle battery B occurs.
When the new in-vehicle battery B is attached, the alternative power supply device 50 is removed from the socket hole 78 and the relay 22 is inserted into the socket hole 78 to recover.

The operation of the alternative power supply device 50 will be described below with reference to the flowchart of FIG.
The control unit 55 (FIG. 1) of the alternative power supply device 50 monitors whether or not the operation unit 59 is operated on the charging side (S1). When the operation unit 59 is operated on the charging side, the FET 60 is turned on. After the FET 61 is turned off, the voltage value V1 of the battery Ba detected by the voltage detector 54 is read (S3). Next, it is determined whether or not the read voltage value V1 is, for example, 12V or more (S5), and if it is 12V or more, the light emitting diode 56 is continuously lit to indicate that it is fully charged (S9). Returning to the monitoring of the operation unit 59 (S1). If it is not 12 V or more (S5), the light emitting diode 56 is blinked to indicate that charging is required (S7), and the process returns to the monitoring of the operation unit 59 (S1).

When the controller 55 is not operated on the charging side (S1), the FET 60 is turned off and the FET 61 is turned on, and then the voltage value V1 of the battery Ba detected by the voltage detector 54 is read (S11). Next, it is determined whether or not the read voltage value V1 is, for example, 9V (first voltage) or more (S13). If the read voltage value V1 is 9V or more, the read voltage value V1 is, for example, 10V (second voltage) or more. It is determined whether or not (S15).
If the read voltage value V1 is 10 V or more (S15), the control unit 55 returns to the monitoring of the operation unit 59 in a dischargeable state (S17) with the FET 60 off and the FET 61 on (S1).

If the read voltage value V1 is not 9 V or more (S13), the control unit 55 turns on the FET 60, turns off the FET 61, inhibits discharge (S19), continuously sounds the buzzer 57, and turns on the light emitting diode 58. It is turned on to notify and display that the voltage is insufficient (S21), and return to the monitoring of the operation unit 59 (S1).
If the read voltage value V1 is not 10 V or more (S15), the controller 55 sounds the buzzer 57 intermittently and blinks the light emitting diode 58, indicating that the voltage is low and discharge may be prohibited. Information is displayed and displayed (S23), and the process returns to the monitoring of the operation unit 59 in the dischargeable state (S17) of FET 60 off and FET 61 on (S1).

(Embodiment 2)
FIG. 6 is an explanatory diagram showing a usage pattern of the second embodiment of the alternative power supply method and the alternative power supply apparatus according to the present invention.
This alternative power supply device 50a is housed in a casing that is not a relay shape, and includes a cord 81 connected to the ground terminal 51 and the charge / discharge terminal 53 shown in FIG. The other end 80 of the cord 81 has the same shape as the male housing of the diagnostic connector for diagnosing the electrical system of the vehicle, and is connected to the ground terminal 51 and the charge / discharge terminal 53 respectively. Two are provided. The female-side housing 82 of the vehicle-side diagnostic connector (provided on the dashboard of the driver's seat for easy diagnosis) is connected to the anode and ground terminal of the in-vehicle battery B. A socket terminal is provided.

  When replacing the in-vehicle battery B, the male connector 82 of the diagnostic connector is connected to the male housing 82 so that the two male pin terminals of the diagnostic connector and the two socket terminals of the female connector are connected to each other. The side housing 80 is connected. Since the other configuration and operation of the alternative power supply device 50a are the same as the configuration and operation of the alternative power supply device 50 described in the first embodiment, the description thereof is omitted.

Note that the ISO standard defines the terminal of a diagnostic connector that can be used arbitrarily by each car manufacturer. If this is assigned to the meaning of battery replacement, the vehicle can be physically recognized as “battery replacement”. , Can contribute to the improvement of work reliability.
Furthermore, if the battery terminal has an emergency power shut-off mechanism, as described above, if the vehicle physically deliberates “battery replacement” and then intentionally shuts off the battery terminal, It is possible to suppress sparks or the like that are likely to occur when the terminal is fixed, and an effect of reducing stress such as inrush current suppression to the power supply circuit of the ECU can be expected.

It is a block diagram which shows the principal part structure of embodiment of the alternative power supply method and alternative power supply device which concerns on this invention. It is a block diagram which shows the example of the electric system of a vehicle. It is a perspective view which shows the usage type of the alternative power supply device which concerns on this invention. It is explanatory drawing which shows the use condition of the alternative power supply device which concerns on this invention. It is a flowchart which shows operation | movement of the alternative power supply device which concerns on this invention. It is explanatory drawing which shows the usage type of the alternative power supply method and alternative power supply device which concerns on this invention.

Explanation of symbols

13 Accessory switch 16 Ignition switch 17 Start switch 24-30 Relay 32, 34, 35 Electric load 41-44 ECU
50, 50a Alternative power supply 51 Ground terminal (pin terminal)
53 Charge / Discharge Terminal (Pin Terminal)
54 Voltage detector (voltage detection means)
55 Control unit 56, 58 Light emitting diode 57 Buzzer 59 Operation unit 60, 61 FET
63, 79 Casing 70 Relay box 78 Socket hole B Car battery Ba Battery

Claims (5)

When replacing a vehicle battery that supplies power to a plurality of electric loads, a plurality of batteries connected to the battery without passing through either an accessory switch or an ignition switch and not via a relay An alternative power supply method for supplying power to an electric load instead of the battery,
A socket to which a relay is to be connected is provided with two pin terminals to be connected in place of the relay and a secondary battery that can be discharged from the pin terminal, the relay is removed, and the relay is connected An alternative power supply method comprising connecting the pin terminal to a power socket and supplying power from the secondary battery instead of the battery. When replacing a battery that supplies power to multiple electrical loads in a vehicle equipped with a diagnostic connector for diagnosing the electrical system, neither an accessory switch nor an ignition switch is used, and a relay is provided. An alternative power supply method for supplying power instead of the battery to a plurality of electric loads connected to the battery without going through the battery,
Two pin terminals to be connected to two socket terminals connected to the battery of the diagnostic connector and a secondary battery that can be discharged from the pin terminals are prepared, and the socket terminal of the diagnostic connector is An alternative power supply method comprising connecting the pin terminals and supplying power from the secondary battery instead of the battery. When replacing a vehicle battery that supplies power to a plurality of electric loads, a plurality of batteries connected to the battery without passing through either an accessory switch or an ignition switch and not via a relay An alternative power supply that supplies power to an electric load instead of the battery,
A socket to which a relay is to be connected, two pin terminals to be connected in place of the relay, a secondary battery that can be discharged from the pin terminal, and voltage detection means for detecting the voltage of the secondary battery; Means for determining whether the voltage detected by the voltage detection means is equal to or higher than the first voltage; and means for prohibiting discharge from the pin terminal when the means determines that the voltage is not higher than the first voltage; And a means for reporting that the means has been prohibited, wherein the pin terminal is connected to a socket to which a relay is to be connected, and power is supplied from the secondary battery. Alternative power supply. When replacing a battery that supplies power to multiple electrical loads in a vehicle equipped with a diagnostic connector for diagnosing the electrical system, neither an accessory switch nor an ignition switch is used, and a relay is provided. An alternative power supply that supplies power instead of the battery to a plurality of electrical loads connected to the battery without going through the battery,
Two pin terminals to be connected to two socket terminals connected to the battery of the diagnostic connector, a secondary battery that can be discharged from the pin terminal, and a voltage detection means for detecting a voltage of the secondary battery And means for determining whether the voltage detected by the voltage detection means is equal to or higher than the first voltage; and means for prohibiting discharge from the pin terminal when the means determines that the voltage is not higher than the first voltage. And a means for reporting that the means has been prohibited, wherein the pin terminal is connected to the socket terminal, and is configured to supply power from the secondary battery. apparatus.   Means for determining whether or not the voltage detected by the voltage detection means is equal to or higher than a second voltage higher than the first voltage; and when the means determines that the voltage is not equal to or higher than the second voltage, the voltage detection means 5. The alternative power supply apparatus according to claim 3 or 4, further comprising means for reporting that the detected voltage is low.

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