JP2009083789A - Vehicular power source control device, transmission device, and power source control communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular power source control device or the like capable of reducing a dark current without accompanied by specific work. <P>SOLUTION: The vehicular power source control device provided with a battery 70; and on-vehicle loads 1-6 for receiving electricity-feeding from the battery 70 is provided with a communication part 51 for receiving a shut off signal for shutting off electricity-feeding of the on-vehicle loads 1-6 in radio; and a shutting off control part 52 for shutting off electricity-feeding of electricity-feeding unnecessary loads 5, 6 out of the on-vehicle loads 1-6, in which electricity-feeding is not required in the non-use state of the vehicle, by triggering shutting off action by a current shutting off mechanism 30. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicular power supply control device including a power supply and a vehicle-mounted load that receives power from the power supply, a transmission device that transmits a radio signal to a vehicle equipped with the vehicular power supply control device, and a road vehicle The present invention relates to a power supply control communication system.

  Conventionally, when transporting vehicles over a long period of time, such as when transporting vehicles that have been completed at a factory overseas, to prevent the battery from running out due to dark current during transportation, load on the ECU (Electronic Control Unit) The work to remove the fuse provided in the power supply path for the load that does not affect the self-running of the vehicle among the power supply paths is performed before transportation, and when the transportation is completed, the work to return the fuse to the original position is performed again. I have been.

In order to omit such a fuse removing operation during vehicle transportation, a battery power supply device including a relay inserted in a power supply path to a load instead of a fuse and a control means for controlling the relay is known. (For example, refer to Patent Document 1). This power supply device determines whether or not the operator is in a transportation state by operating a predetermined operation section of the vehicle, and the control means that receives the operation signal relays the relay to cut off the power supply path. When the control signal is controlled to open and then the same operation signal is received, the control means controls the relay to close.
Japanese Patent Laid-Open No. 10-70843

  However, in the above-described conventional technology, the dark current cannot be reduced by cutting off the power supply unless the operator performs a complicated operation of operating a predetermined operation unit of the vehicle.

  Accordingly, an object of the present invention is to provide a vehicle power supply control device, a transmission device, and a power supply control communication system that can reduce dark current without any special work.

In order to achieve the above object, a vehicle power supply control device according to a first invention comprises:
Power supply,
A vehicle power supply control device comprising a vehicle-mounted load that receives power from the power supply,
A cut-off signal receiving means for wirelessly receiving a cut-off signal for cutting off the power supply of the in-vehicle load;
Based on the reception of the shut-off signal, it comprises shut-off control means for shutting off the power feeding of the on-board load that does not require power feeding when the vehicle is not in use.

A second invention is a vehicle power control device according to the first invention,
The shut-off control means shuts off the power feeding of the power-unnecessary load according to vehicle specification information.

A third invention is a power supply control device for a vehicle according to the second invention,
The blocking signal is determined based on the specification information.

A fourth invention is a vehicle power supply control device according to any one of the first to third inventions,
The non-use state is a vehicle transportation state.

A fifth invention is a vehicle power supply control device according to any one of the first to fourth inventions,
A release signal receiving means for wirelessly receiving a release signal for releasing the interruption of power supply of the power supply unnecessary load;
The cutoff control means cancels the cutoff of the power supply of the power supply unnecessary load based on the reception of the release signal.

A transmission apparatus according to a sixth invention is
The present invention is characterized in that it includes a cutoff signal transmission unit that wirelessly transmits the cutoff signal to a vehicle on which the vehicle power supply control device according to any one of the first to fourth aspects of the invention is mounted.

A transmission device according to a seventh invention is
A release signal transmitting means for wirelessly transmitting the release signal to a vehicle equipped with the vehicle power supply control device according to the fifth aspect of the invention is provided.

A power control communication system according to an eighth invention is
Detection means for detecting the vehicle;
Provided on the roadside with a cut-off signal transmission means for wirelessly sending a cut-off signal for cutting off the power supply of the on-vehicle load to the vehicle detected by the detection means,
A blocking signal receiving means for wirelessly receiving the blocking signal;
The vehicle side is provided with the interruption | blocking control means which interrupts | blocks the electric power feeding of the electric power feeding unnecessary load which does not need electric power feeding in the non-use state of a vehicle among the said vehicle-mounted loads based on reception of the said interruption | blocking signal.

A ninth invention is a power supply control communication system according to the eighth invention,
Provided on the roadside with a release signal transmitting means for wirelessly transmitting a release signal for releasing the power supply interruption of the power supply unnecessary load,
The vehicle side is provided with a release signal receiving means for receiving the release signal wirelessly,
The cutoff control means cancels the cutoff of the power supply of the power supply unnecessary load based on the reception of the release signal.

  According to the present invention, dark current can be reduced without any special work.

  The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 is a first configuration example of a vehicle power supply control device according to the present invention.

  Each of the ECUs 1 to 6 operates by receiving power supply from a battery 70 as a power source. Power feeding to the ECUs 1 to 4 is performed via power feeding paths 21 to 24 corresponding to the respective ECUs. Power supply to the ECUs 5 and 6 is performed via power supply paths 25 and 26 corresponding to the ECUs.

  The current interruption mechanism 30 inserted on the power supply path from the vehicle-mounted battery 70 to the ECUs 5 and 6 is for preventing the battery from being increased due to dark current during transportation. Specific examples of the current interrupt mechanism 30 include a semiconductor relay and a mechanical relay. When the vehicle is transported for a long time, there is no opportunity to charge the battery 70 because the engine is not started for a long time. If nothing is dealt with, dark current generated by a resistance component such as a load connected to the battery 70 In the worst case, the battery will run out. Therefore, before the transportation, the current interruption mechanism 30 cuts off the power supply between the battery 70 and the ECUs 5 and 6, and when the transportation is completed, the current interruption mechanism 30 releases the interruption to reduce the dark current as much as possible. Can do.

  However, if the vehicle becomes incapable of self-running due to interruption of energization by the current interruption mechanism 30 arranged upstream of the ECUs 5 and 6 (battery 70 side), when the vehicle is transported by sea or the customer who purchased the vehicle This is inconvenient when delivering vehicles. Therefore, a load that needs to be supplied with electric power from the battery 70 even if the current interruption mechanism 30 is interrupted is connected to a path upstream of the current interruption mechanism 30 among the paths to the battery 70 (see FIG. 1, ECUs 1 to 4, which are connected to the power supply paths 21 to 24, respectively, and a load that may cut off the power supply from the battery 70 when the current cut-off mechanism 30 is cut off is Among the paths between them, they are connected to the downstream path with respect to the current interrupt mechanism 30 (in the case of FIG. 1, ECUs 5 and 6 connected to the power feeding paths 25 and 26, respectively). Examples of loads connected to the paths 21 to 24 on the upstream side with respect to the current interruption mechanism 30 include a power management ECU, an engine ECU, an air conditioner ECU, and an ECU for a driver's door, and are downstream of the current interruption mechanism 30. Examples of loads connected to the side paths 25 and 26 include a wireless door control receiver, a security ECU, a rear seat door ECU, audios, and a room lamp. That is, the load connected to the paths 21 to 26 is not particularly limited to the ECU as illustrated in FIG. 1, and may include an electrical load such as an electronic device.

  FIG. 1 is a diagram for explaining that there are paths that are affected by whether or not the power supply from the battery 70 is interrupted by whether or not the power supply path is interrupted by the current interrupting mechanism 30 and paths that are not affected. Even if components such as relays and fuses are inserted above, such components are omitted or simplified and drawn (in FIG. 1, fuses 11 to 17 that can be manually inserted and removed are inserted on the power supply path. Is shown). Also, the types of loads and the power supply path blocking parts are merely examples, and loads and blockings to be connected to the paths 21 to 26 according to the vehicle specifications determined by the destination, vehicle grade, optional items, product number, and the like. The site is determined. The current interrupt mechanism 30 may be disposed in the relay box (fuse box) 40 together with the fuses 11 to 17 on the paths 21 to 26, for example. Thereby, current path interruption means such as the current interruption mechanism 30 and the fuse can be collectively arranged, and the maintainability and mountability are improved.

  The vehicle-mounted device 50 receives a radio signal from the outside of the vehicle, and controls the interruption operation of the current interruption mechanism 30 based on the reception result. The vehicle-mounted device 50 is detachable from the vehicle, and is connected to the current interrupt mechanism 30 via a connector 60 installed on the vehicle side. By making it detachable, it is possible to remove the vehicle-mounted device 50 from the vehicle at least before delivery and attach it to another transport vehicle for reuse. The connector 60 may be, for example, an existing diagnostic tool connector that connects a diagnostic tool that can be connected to the in-vehicle computer. By adopting a configuration in which the vehicle-mounted device 50 can be connected to a diagnostic tool connector in which a power line, a ground line, and a signal line are provided, the existing parts of the vehicle can be diverted, and the transmission path of the power supply and control signal of the vehicle-mounted device 50 It can be secured easily.

  The vehicle-mounted device 50 includes a communication unit 51 that receives a radio signal from the outside of the vehicle, and a cutoff control unit 52 that outputs a control signal for causing the current cutoff mechanism 30 to perform a cutoff operation based on a reception result of the communication unit 51. . The vehicle-mounted device 50 connected to the connector 60 is preferably installed at a site where a radio signal from the outside of the vehicle is received or a radio signal from the outside of the vehicle is easily transmitted and received, for example, on a dashboard.

  When the cutoff command signal is received from the outside by the communication unit 51, the cutoff control unit 52 outputs a control signal that operates the current cutoff mechanism 30 so that the path is in a non-energized state. Moreover, the interruption | blocking control part 52 outputs the control signal which operates the electric current interruption | blocking mechanism 30 so that a path | route will be in an energized state, when the communication part 51 receives the interruption | blocking cancellation | release command signal from the outside.

  Next, a roadside transmission device that transmits a cutoff command signal and a cutoff release command signal, and a power supply control communication system between the roadside transmission device and the vehicle will be described. FIG. 2 is a configuration example of the power supply control communication system. FIG. 2A shows a configuration of a communication system between road vehicles at a transportation source, and FIG. 2B shows a configuration of a communication system between road vehicles at a transportation destination. The roadside transmission apparatus of FIG. 2A is a vehicle detection device that detects a vehicle 100 using a shipping gate antenna 210 that transmits a cutoff command signal toward the vehicle 100 on which the vehicle-mounted device 50 is mounted, and a detection wave such as a sound wave or a millimeter wave. And a shipment gate roadside machine 200 that controls transmission of a shutoff command signal based on the detection result of the vehicle detector 220. The roadside transmission device of FIG. 2B is a vehicle that detects the vehicle 100 by an arrival gate antenna 310 that transmits a cutoff release command signal toward the vehicle 100 on which the vehicle-mounted device 50 is mounted, and a detection wave such as a sound wave or a millimeter wave. A detector 320 and an arrival gate roadside machine 300 that controls transmission of a disconnection release command signal based on a detection result by the vehicle detector 320 are provided. The detection method of the vehicle detectors 220 and 320 is not limited to the non-contact detection method using a detection wave or the like, and may be a contact detection method using a weight sensor or the like.

  The vehicle detector 220 installed at a predetermined distance before the shipping gate antenna 210 installed on the roadside after the final process (for example, inspection process) section of the vehicle assembly line automatically approaches the vehicle 100 to the shipping gate antenna 210. When detected, the shipping gate roadside machine 200 transmits a cutoff command signal to the vehicle 100 via the shipping gate antenna 210. The installation position of the vehicle detector 220 may be determined according to the assumed vehicle speed and the time required from the vehicle detection to the transmission of the cutoff command signal. The communication unit 51 of the vehicle-mounted device 50 that has received the cutoff command signal transmits the reception result to the cutoff control unit 52. The cutoff control unit 52 cuts off the power supply to the ECUs 5 and 6 by the current cutoff mechanism 30 based on the received cutoff command signal.

  Thereafter, the self-propelled vehicle 100 is transported to a transport ship and is transported by sea toward a destination yard (port). When the approach to the arrival gate antenna 310 of the vehicle 100 is automatically detected by the vehicle detector 320 installed at a predetermined distance before the arrival gate antenna 310 installed in the transport destination yard, the arrival gate roadside unit 300 A cutoff release command signal is transmitted to the vehicle 100 via the antenna 310. The installation position of the vehicle detector 320 may be determined by the estimated vehicle speed and the time required from the vehicle detection to the transmission of the cutoff release command signal. The communication unit 51 of the vehicle-mounted device 50 that has received the cutoff release command signal transmits the reception result to the cutoff control unit 52. Based on the received cutoff release command signal, the cutoff control unit 52 uses the current cutoff mechanism 30 to release the power supply to the ECUs 5 and 6.

  After canceling the interruption of power supply to the ECUs 5 and 6 at the transportation destination, the in-vehicle device 50 can be reused by collecting the in-vehicle device 50 from the vehicle and returning it to the transportation source.

  Therefore, according to the above-described embodiment, the operator can reduce the dark current without performing special work, and can prevent the battery from running out. That is, it is possible to prevent erroneous operations such as forgetting to remove a fuse, forgetting to reinsert, or an insertion error in a conventional operation for removing and inserting a fuse for reducing dark current.

  By the way, the current interruption | blocking mechanism 30 does not need to be restricted to one as FIG. 1 shows. FIG. 3 is a second configuration example of the vehicle power supply control device according to the present invention. The same components as those in the first configuration example are denoted by the same reference numerals, and the description thereof is omitted. The current interruption mechanism 30A is inserted in the power supply path from the battery 70 to both the ECUs 5 and 6, and the current interruption mechanism 30B is inserted in the power supply path from the battery 70 only to the ECU 6. .

  Generally, even in the same vehicle type, the electrical load that should be cut off in the transportation state varies depending on the specification of each vehicle (for example, difference in destination, vehicle grade, inspection process, optional product, product number, etc.) There is a case. For example, in the case of a specification A vehicle, it is required to cut off the power supply to both of the ECUs 5 and 6. In the case of a specification B vehicle, the power supply to the ECU 5 is cut off without cutting off the power supply to the ECU 5. May be required.

  Therefore, the vehicle-mounted device 50 controls the cutoff operation of the current cutoff mechanisms 30A and 30B according to the cutoff command signal from the outside of the vehicle and the vehicle specification information. That is, the cutoff control unit 52 outputs a control signal for causing the current cutoff mechanisms 30A and 30B to perform a cutoff operation in accordance with a cutoff command signal from outside the vehicle and vehicle specification information. The vehicle specification information is stored in, for example, a storage device (for example, a memory in an in-vehicle computer such as an engine ECU) mounted in each vehicle or a storage device provided in the in-vehicle device 50. The vehicle specification information can also be specified by vehicle identification information (vehicle ID) given to each vehicle, such as a vehicle part number that is different for each vehicle.

  The cutoff control unit 52 that has detected the reception of the cutoff command signal reads the specification information of the host vehicle from the storage device. The cutoff control unit 52 uses a predetermined cutoff load correspondence table that defines the correspondence between the vehicle specification information and the power supply unnecessary ECU, and can cut off the power supply to the ECU corresponding to the read specification information. To shut off. The interruption load correspondence table may be stored in a storage device of the vehicle or the vehicle-mounted device 50, or may be stored in a storage device outside the vehicle and acquired by communication by the communication unit 51. By performing the interruption operation in this manner, even if a plurality of current interruption mechanisms are provided, it is possible to cause the current interruption mechanism to perform an appropriate interruption operation according to the specifications of the vehicle.

  The shut-off release operation at the transport destination is the same as that described with reference to FIG. In other words, the cutoff control unit 52 releases the cutoff operation of the current cutoff mechanisms 30A and 30B so that the non-energized state becomes the energized state based on the received cutoff release command signal. At this time, the interruption operation of all the current interruption mechanisms 30 (in the case of FIG. 3, 30A, B) may be released uniformly.

  That is, even if the specification of the vehicle is different, the worker can reduce the dark current without performing special work, and can prevent the battery from running out. That is, it is possible to prevent erroneous operations such as forgetting to remove a fuse, forgetting to reinsert, or an insertion error in a conventional operation for removing and inserting a fuse for reducing dark current. In particular, when the fuse to be inserted / extracted varies depending on the specification, erroneous work can be prevented more effectively.

  By the way, the judgment part which identifies the power supply unnecessary load using the interruption load correspondence table may be the interruption control part 52 of the vehicle-mounted device 50 installed in the vehicle as described above, or may be a judgment part provided outside the vehicle.

  An operation example when the shipping gate roadside machine 200 is a determination unit outside the vehicle will be described. For example, the specification information of the vehicle passing through the shipping gate antenna 210 in FIG. 2 is transferred outside the vehicle. The shipping gate roadside machine 200 that has received the specification information of the vehicle determines the content of the cutoff command signal according to the received specification information using the cutoff load correspondence table. And the interruption | blocking control part 52 carries out interruption | blocking operation | movement of an electric current interruption | blocking mechanism according to the content of the interruption | blocking command signal determined according to the specification information of the vehicle by the shipping gate roadside machine 200.

  A more detailed operation example will be described. In FIG. 2, the approach of the vehicle 100 to the shipping gate antenna 210 is automatically detected by the vehicle detector 320 installed in front of the shipping gate antenna 210 installed after the final process (for example, inspection process) section of the vehicle assembly line. Then, the shipping gate roadside machine 200 requests the vehicle-mounted device 50 to transmit vehicle specification information (or ID information) via the shipping gate antenna 210. The vehicle-mounted device 50 transmits vehicle specification information to the shipping gate antenna 210. The shipping gate roadside machine 200 supplies power to the ECU corresponding to the specification information received via the shipping gate antenna 210 using a predetermined interrupt load correspondence table that defines the correspondence relationship between the vehicle specification information and the power supply unnecessary ECU. Identify the current interrupt mechanism that can be interrupted. The shipping gate roadside machine 200 transmits a cutoff command signal including the specified current cutoff mechanism as information via the shipping gate antenna 210. The cutoff control unit 50 of the on-vehicle device 50 causes the current cutoff mechanism designated by the cutoff command signal to be cutoff. By performing the interruption operation in this manner, even if a plurality of current interruption mechanisms are provided, it is possible to cause the current interruption mechanism to perform an appropriate interruption operation according to the vehicle specifications.

  In addition, when the shipping gate roadside machine 200 has already acquired the specification information of the vehicle passing through the shipping gate antenna 210 (for example, management for sequentially managing the correspondence between the vehicle passing through the shipping gate antenna 210 and the specification information) If the server has a configuration in which the shipping gate side unit 200 can access the server), the vehicle specification information may not be transmitted from the vehicle-mounted device 50 to the shipping gate side unit 200 as described above. Good. In this case, the shipping gate roadside machine 200 transmits, for example, a cutoff command signal including specification information of the vehicle passing through the shipping gate antenna 210 to the vehicle-mounted device 50. The shut-off control unit 52 of the on-vehicle device 50 uses a predetermined shut-off load correspondence table that defines the correspondence between the vehicle specification information and the power supply unnecessary ECU, and the ECU corresponding to the spec information included in the received shut-off command signal. A current interrupting mechanism capable of interrupting power feeding is interrupted.

  The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above-described embodiments, and various modifications and substitutions can be made to the above-described embodiments without departing from the scope of the present invention. Can be added.

  For example, in the above-described embodiment, the vehicle transportation state is described as an example of the vehicle non-use state, but the vehicle transportation state is not particularly limited. For example, it may be in a parking state where a power generation means such as an alternator that can be charged in a battery is not generating power, such as a long-term display state in a vehicle exhibition hall. The structure as shown in FIG. 2 is provided at the entrance / exit of such a parking place.

  In addition, the transmission device that transmits the cutoff command signal and the cutoff release command signal is not limited to a roadside transmission device, and may be a transmission device that can be carried by an operator. In addition, the antenna of the roadside transmission apparatus is not limited to the gate antenna provided in the ETC lane, and may be an appropriate antenna that can communicate with the vehicle, such as a pole antenna.

  Also, the operator looks at whether the transportation state is set (whether it is determined that the vehicle-mounted device 50 is in the transportation state, whether the current interruption mechanism 30 is performing the interruption operation). In order to be able to discriminate by, a notification means using a signal lamp, a horn, voice guidance, or a screen display may be set. For example, when the vehicle-mounted device 50 causes the current interruption mechanism 30 to perform an interruption operation by receiving the interruption command signal, the buzzer is blown twice, the room lamp is turned on twice, and the interruption operation is released by receiving the interruption release instruction signal. The buzzer will sound once and the room lamp will light once.

It is the 1st example of composition of the power supply control device for vehicles concerning the present invention. 1 is a configuration example of a power supply control communication system. It is a 2nd structural example of the vehicle power supply control apparatus which concerns on this invention.

Explanation of symbols

1-6 ECU
11-17 Fuse 21-26 Power supply path 30, 30A, 30B Current interruption mechanism 40 Relay box 50 On-board unit 60 Connector 70 Battery

Claims (9)

Power supply,
A vehicle power supply control device comprising a vehicle-mounted load that receives power from the power supply,
A cut-off signal receiving means for wirelessly receiving a cut-off signal for cutting off the power supply of the in-vehicle load;
A vehicle power supply control device comprising: a cutoff control unit that cuts off a power supply of a power supply unnecessary load that does not require a power supply when the vehicle is not in use, based on the reception of the cutoff signal.   The vehicular power supply control device according to claim 1, wherein the cut-off control unit cuts off the power supply of the power supply unnecessary load according to vehicle specification information.   The vehicle power supply control device according to claim 2, wherein the cutoff signal is determined based on the specification information.   The vehicle power supply control device according to any one of claims 1 to 3, wherein the non-use state is a vehicle transportation state. A release signal receiving means for wirelessly receiving a release signal for releasing the interruption of power supply of the power supply unnecessary load;
The vehicle power supply control device according to any one of claims 1 to 4, wherein the cutoff control means releases the cutoff of power feeding of the power supply unnecessary load based on reception of the release signal.
  A transmission apparatus comprising: a cutoff signal transmission unit that wirelessly transmits the cutoff signal to a vehicle on which the vehicle power supply control device according to any one of claims 1 to 4 is mounted. A transmission apparatus comprising: a cancellation signal transmission unit that wirelessly transmits the cancellation signal to a vehicle on which the vehicle power supply control device according to claim 5 is mounted.
Detection means for detecting the vehicle;
Provided on the roadside with a cut-off signal transmission means for wirelessly sending a cut-off signal for cutting off the power supply of the on-vehicle load to the vehicle detected by the detection means,
A blocking signal receiving means for wirelessly receiving the blocking signal;
A power supply control communication system, comprising: on the vehicle side, a cut-off control unit that cuts off a power supply of a load that does not require power supply when the vehicle is not in use, based on reception of the cut-off signal. Provided on the roadside with a release signal transmitting means for wirelessly transmitting a release signal for releasing the power supply interruption of the power supply unnecessary load,
The vehicle side is provided with a release signal receiving means for receiving the release signal wirelessly,
9. The power supply control communication system according to claim 8, wherein the cutoff control unit releases the cutoff of power supply of the power supply unnecessary load based on reception of the release signal.

Images