JP2014174819A - Vehicle drive management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mitigate load of the engine of a transport vehicle with a refrigerator on an uphill grade and ensure the uphill driving performance in a system which communicably connects the transport vehicle with a management center which manages the transport vehicle.SOLUTION: A server 10 of a management center 3 transmits a command signal for refrigeration control to a transport vehicle 2 when determining there is an uphill grade having an altitude difference equal to or greater than a prescribed value ahead of a travel route of the transport vehicle 2 on the basis of map data while managing the travel route of the transport vehicle 2. When an on-vehicle terminal device 8 of the transport vehicle 2 receives the command signal from the management center 3, a control device transmits a control signal to a refrigerator control part and the refrigerator control part executes a forced refrigeration operation to control the refrigerator 6 so that the inside of a refrigerator 4 is brought into an excessively refrigerated state at a temperature lower than in a normal operation until just before the transport vehicle 2 reaches the uphill grade.

Description

  The present invention is a vehicle constituted by connecting a transport vehicle having a cold storage for cooling and storing articles, and a management center that monitors the position and speed of the transport vehicle and manages operation so as to be communicable via communication means. The present invention relates to an operation management system.

  For example, in the field of logistics, an operation management system for managing the operation of a transportation vehicle by connecting an in-vehicle computer mounted on a transportation vehicle (truck) and a management computer of a management center via the Internet is considered ( For example, see Patent Document 1). In this operation management system, the transport vehicle (in-vehicle computer) side receives instruction data such as a delivery schedule (operation route) from the management center, and during operation, the position and dynamics of the vehicle (rest, departure) , Information on return, etc.). On the management center (management computer) side, the delivery schedule (operation route) of each transport vehicle is set and transmitted, and the position and work status of the transport vehicle are grasped in real time by the data transmitted from the in-vehicle computer. And can give appropriate instructions.

  With such an operation management system, efficient delivery operations can be performed, and the driver's safety driving and energy saving awareness can be improved. At this time, in the case where the transport vehicle (truck) to be managed is a refrigerated vehicle or a chilled transport vehicle having a cold storage for cooling and storing items, temperature information in the cold storage is also sent to the management center. The temperature management in the cool box (quality management of stored articles) is also performed based on an instruction from the management center.

JP 2005-339572 A

  By the way, when the transport vehicle is a refrigerated vehicle or a chilled transport vehicle having a cold storage, a refrigerator (refrigeration cycle) is mounted for cooling the cold storage. This type of refrigerator is a compressor. Is generally operated by the driving force of the engine. Thus, when the engine is used as a drive source, especially in the summer, the load on the engine increases if the compressor of the refrigerator is driven when the transport vehicle is climbing uphill. There are circumstances such as a decrease in vehicle speed.

  The present invention has been made in view of the above circumstances, and an object of the present invention is a system that connects a transport vehicle having a cold storage and a management center that manages the transport vehicle in a communicable manner, when the climbing in the transport vehicle It is in providing the operation management system for vehicles which can reduce the load of the engine and can ensure a climbing performance.

  In order to achieve the above object, a vehicle operation management system according to claim 1 of the present invention monitors a position and speed of a transport vehicle having a cold storage that uses an engine as a travel drive source to cool and store articles, and the position and speed of the transport vehicle. And a management center that manages the operation is communicably connected via communication means, and the transport vehicle has a compressor driven by the engine and cools the inside of the cold storage. A refrigerator that detects the temperature in the cold storage, and a refrigerator control unit that controls the refrigerator so that the temperature in the cold storage becomes a target temperature based on the detection of the temperature detector. When the management center determines that there is an uphill with a height difference of a predetermined level or more on the other side of the travel route during transportation of the transport vehicle based on the map data, the transport center Cooling system Command means for transmitting a command signal for the vehicle, and when the transport vehicle receives the command signal, the refrigerator control means causes the cold storage compartment until the transport vehicle reaches the uphill. It is characterized in that a forced cooling operation for controlling the refrigerator is executed so that the inside is in an overcooled state at a lower temperature than that during normal operation.

  According to the above configuration, the management center monitors the position and speed of the transport vehicle by communication with the transport vehicle and manages the operation. The management center manages the travel route of the transport vehicle during transport. When it is determined that there is an uphill with an altitude difference equal to or greater than a predetermined distance, a command signal for cooling control is transmitted to the transport vehicle by the command means. When the command signal is received, in the transport vehicle, the inside of the cool box is in an overcooled state at a lower temperature than during normal operation until the transport vehicle reaches the uphill by the refrigerator control means. A forced cooling operation for controlling the refrigerator is performed.

  By executing this forced cooling operation, the inside of the cooler of the transport vehicle is overcooled, and when climbing uphill, the cooling state is maintained for a while without driving the refrigerator (compressor). Can be secured. Therefore, when the transport vehicle is climbing up, the drive of the compressor can be suppressed, and the engine load can be reduced. As a result, according to the present invention, there is a system for communicably connecting a transport vehicle having a cold storage and a management center that manages the transport vehicle, and the load on the engine during climbing in the transport vehicle is reduced, There is an excellent effect that the climbing performance can be secured.

The figure which shows one Example of this invention and shows the whole structure of the operation management system for vehicles schematically Block diagram schematically showing the configuration of the in-vehicle terminal Diagram showing the configuration of the refrigerator The flowchart which shows the procedure of the process which the server of a management center performs when an uphill exists ahead of the driving | running route of a transport vehicle. The flowchart which shows the control procedure which a refrigerator control part performs, when a command signal is received from a management center The flowchart which shows the procedure of the process which the server of a management center performs when the downhill exists ahead of the driving | running route of a transport vehicle. The flowchart which shows the control procedure which a refrigerator control part performs when the downhill command signal is received from the management center

  Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings. FIG. 1 schematically shows the overall configuration of a vehicular operation management system 1 according to the present embodiment. The operation management system 1 is configured, for example, by connecting a plurality of transport vehicles 2 (only one is shown) owned by a shipping company and a management center 3 so that they can communicate with each other.

  The transport vehicle 2 is composed of a refrigerated vehicle (truck) having a cold storage 4 for storing and cooling the goods, and delivers goods (food, etc.) loaded in the cold storage 4 to customers. The transport vehicle 2 uses an engine 5 (see FIG. 3) as a travel drive source, and the transport vehicle 2 is equipped with a refrigerator (refrigeration cycle) 6 for cooling the inside of the cold storage 4. . Further, as will be described later, the transport vehicle 2 is equipped with an in-vehicle terminal 8 having a wireless communication unit 7 (both are shown only in FIG. 2).

  As shown in FIG. 1, the management center 3 includes a communication unit 9, a server 10, a database 11, and a connection unit 12. Among them, the communication unit 9 is configured to communicate with the wireless communication unit 7 of the in-vehicle terminal 8 (transport vehicle 2) via the communication network 13 and the base station 14. Therefore, the communication unit 9, the communication network 13, the base station 14, the wireless communication unit 7, etc. constitute communication means.

  The server 10 is mainly composed of a computer having a CPU, a ROM, a RAM, and the like, and performs necessary operation management such as position management of each transport vehicle 2, grasping of business conditions, business instructions, and the like. The database 11 stores road map data and operation data of each transport vehicle 2 and the like. The road map data includes altitude data at each point. The connection unit 12 connects the server 10 to the Internet 15, and the server 10 distributes necessary information to the customer's computer 16 via the Internet 15.

  On the other hand, as shown in FIG. 2, the in-vehicle terminal 8 mounted on the transport vehicle 2 is mainly composed of a computer having a CPU, a ROM, a RAM, and the like, and includes a control device 17 for controlling the whole. Yes. The wireless communication unit 7, the GPS receiver 18, the display device 19, the input operation unit 20, the audio output device 21, the storage unit 22, and the connection I / F unit 23 connected to the control device 17 are provided. .

  The connection I / F unit 23 is for connecting the in-vehicle terminal 8 (control device 17) to the in-vehicle network 24 made of CAN, for example. Connected to the in-vehicle network 24 are various ECUs 25 mounted on the transport vehicle 2, various vehicle-mounted sensors 26, a refrigerator control unit 27 described later, and the like. Although detailed illustration is omitted, various on-vehicle sensors 26 include a vehicle speed sensor, a gyro sensor, an outside air temperature sensor, an inside temperature sensor 28 (see FIG. 3) as a temperature detector for detecting the temperature inside the cold storage 4 and the like. It is included.

  The GPS receiver 18 receives a radio wave transmitted from an artificial satellite for GPS (Global Positioning System), and the received data is input to the control device 17. The control device 17 detects the current position (absolute position), speed, traveling direction, current time, etc. of the transport vehicle 2 with high accuracy based on the reception data of the GPS receiver 18 and signals from the various in-vehicle sensors 26. It has become.

  The display device 19 is composed of, for example, a liquid crystal display capable of color display, and is located at the center of an instrument panel in the passenger compartment, for example, so as to be visible by a driver. On the screen of the display device 19, for example, a map screen (route guidance screen to the delivery destination) when using the navigation function, a necessary message (business instruction), and the like are displayed. The input operation unit 20 includes a touch panel provided on the screen of the display device 19 and a mechanical switch arranged around the touch panel. A driver operates the input operation unit 20. For example, necessary input such as input of dynamic information and temperature setting in the cool box 4 is performed. The audio output device 21 includes a speaker or the like, and outputs a guide audio or the like. The storage unit 22 stores travel history data and the like.

  As a result, the in-vehicle terminal 8 (control device 17) sends the data of the position, speed and dynamics (loading, loading, departure, rest, return, etc.) of the own vehicle to the management center 3 and the internal temperature sensor 28. The detected temperature is transmitted by the wireless communication unit 7 at predetermined time intervals. On the other hand, the management center 3 grasps the position, speed, dynamics, and travel route of each transport vehicle 2 through communication from the transport vehicle 2, and manages the operation. The management center 3 transmits to the transport vehicle 2 (wireless communication unit 7) a route to the delivery destination, business instruction information, caution information about safe driving and energy-saving driving, and the like.

  Here, the configuration of the refrigerator 6 having a known configuration mounted on the transport vehicle 2 will be briefly described with reference to FIG. The refrigerator (refrigeration cycle) 6 includes a compressor 29 that compresses the refrigerant into a high-temperature and high-pressure gas, a condenser 30 that condenses the refrigerant gas, an expansion valve 31 that serves as a decompression unit, and an evaporator 32 that evaporates the refrigerant and absorbs heat from the surroundings. Are connected in a closed loop by a refrigerant pipe 33, and a required amount of refrigerant is sealed inside. The condenser 30 is supplied with cooling air by a cooling fan 34. Further, the cold air generated by the evaporator 32 is circulated and supplied into the cool box 4 by the blower fan 35.

  The driving force of the engine 5 is driven via a belt transmission mechanism (not shown). At this time, the driving force of the engine 5 is transmitted and disconnected by the electromagnetic clutch 36. ON / OFF is switched. At this time, the detection signal of the internal temperature sensor 28 that detects the temperature in the cold storage 4 is input to the refrigerator control unit 27.

  The refrigerator control unit 27 sets the temperature in the cool box 4 to a set target temperature (in the case of refrigeration, for example, set in a range of −15 ° C. to −30 ° C.) based on the detection of the inside temperature sensor 28. The electromagnetic clutch 36 is on / off controlled so as to be maintained. Therefore, the refrigerator control unit 27 functions as a refrigerator control means. In this case, the refrigerator control unit 27 sets an upper limit temperature and a lower limit temperature within a predetermined temperature range (for example, about ± 2 ° C.) centered on the target temperature, and the temperature detected by the internal temperature sensor 28 is The refrigerator 6 is controlled so as to be within the range of the upper limit temperature and the lower limit temperature.

  The refrigerator 6 is connected to an operation panel 37 that can change the set temperature in the cool box 4, and the refrigerator control unit 27 controls the temperature in the cool box 4 by an input from the operation panel 37. To do. Although not shown in detail, the operation panel 37 is provided with a display unit for displaying the set temperature in the cabinet and a switch operation unit for changing the set temperature. The switch operation unit may be composed of a touch panel provided on the screen of the display unit. For connection between the operation panel 37 and the refrigerator control unit 27, communication means using the in-vehicle network 24 may be used, but input information using a dedicated communication line 38 (indicated by a dotted line in FIG. 2). May be transmitted.

  In the present embodiment, as will be described later in the description of the operation (flowchart description), the server 10 of the management center 3 can transport the transport vehicle 2 based on the map data when managing the travel route of the transport vehicle 2. When it is determined that there is an uphill having an altitude difference equal to or greater than a predetermined distance ahead of the traveling route in the middle, a command signal for cooling control is transmitted to the transport vehicle 2. Accordingly, the server 10 functions as a command unit.

  When the in-vehicle terminal 8 of the transport vehicle 2 receives the command signal () from the management center 3, a control signal is transmitted from the control device 17 to the refrigerator control unit 27, and the refrigerator control unit 27 Performs a forced cooling operation for controlling the refrigerator 6 so that the inside of the cool box 4 is in an overcooled state at a lower temperature than during normal operation until the transport vehicle 2 reaches the uphill. It has become.

  Specifically, the server 10 of the management center 3 predicts the time (time) to reach the uphill from the position and speed of the transport vehicle 2, and ascends 10 minutes before the start of the uphill as a command signal for cooling control. A 10-minute notice, a 1-minute notice before the start of climbing, and a climb-end notice when climbing is completed are transmitted to the transport vehicle 2. When the vehicle-mounted terminal 8 (control device 17) of the transport vehicle 2 receives these signals, it notifies the refrigerator control unit 27 as a control signal 10 minutes before the climbing start 10 minutes before the climbing start, 1 minute before the climbing start. An uphill one-minute notice and an uphill end notice that the uphill has ended are transmitted.

  When the refrigerator control unit 27 receives the notification 10 minutes before the uphill, that is, when it reaches 10 minutes before the predetermined time from the estimated arrival time of the transport vehicle 2 to the uphill, The forced cooling operation of the refrigerator 6 is executed by changing the target temperature to a forced cooling temperature lower than the normal target temperature (for example, a temperature lower by 5 ° C. than the set temperature). In addition, the refrigerator control unit 27 turns off the compressor 29 when receiving the notice 1 minute before the uphill, that is, turns the compressor 29 off during traveling on the uphill of the transport vehicle 2.

  The refrigerator control unit 27 returns to the control of the refrigerator 6 at the target temperature at the normal time when the climbing end notification is received, that is, when the transport vehicle 2 finishes the climbing slope. Yes. In addition, the refrigerator control unit 27 returns the control of the refrigerator 6 to normal even when the temperature detected by the internal temperature sensor 28 reaches the upper limit temperature while the transport vehicle 2 is traveling uphill. ing.

  Further, as will be described later, in this embodiment, the management center 3 (server 10) has an altitude difference of a predetermined level or more on the other side of the travel route of the transport vehicle 2 during transport based on the map data. When it is determined that there is a downhill, a downhill command signal (downhill start notification, downhill end notification) is transmitted to the transport vehicle 2 at the start and end of the downhill.

  When the transport vehicle 2 side (the refrigerator control unit 27) receives the downhill start notification from the management center 3, the refrigerator 6 is set so that the inside of the cool box 4 is in an overcooled state at a lower temperature than during normal operation. A second forced cooling operation for controlling the above is executed. This second forced cooling operation is also performed by changing the target temperature of the cool box 4 to a second forced cooling temperature lower than the normal target temperature (for example, a temperature lower by 5 ° C. than the set temperature). The refrigerator control unit 27 is configured to return the control of the refrigerator 6 to normal when receiving the downhill end notification.

  Next, the operation of the above configuration will be described with reference to FIGS. In the operation management system 1 having the above-described configuration, the server 10 of the management center 3 is based on the communication with the transport vehicle 2 (the in-vehicle terminal 8), and the current position, speed, dynamics, and internal temperature of the transport vehicle 2. The temperature detected by the sensor 28 is grasped, and the operation of the transport vehicle 2 is managed. At this time, based on the map data, the management center 3 (server 10) monitors whether there is an uphill or downhill having an altitude difference of more than a predetermined distance ahead of the travel route of the transport vehicle 2 during transport. To do.

  Here, the flowchart of FIG. 4 shows a processing procedure executed by the server 10 of the management center 3 when it is determined that there is an uphill ahead of the travel route of the transport vehicle 2 during transport. 5 shows a control procedure of the refrigerator 6 that is performed by the refrigerator control unit 27 when the transport vehicle 2 receives a command signal from the management center 3.

  That is, first, in FIG. 4, in step S <b> 1, a process for predicting the travel route to the delivery destination of the transport vehicle 2 is executed. At this time, based on the map data, it is determined whether or not there is an uphill on the other side of the travel route of the transport vehicle 2 during transportation, and an arrival time for the uphill is estimated. The In step S2, it is determined whether or not 10 minutes before the start of climbing has been reached, and when 10 minutes have passed (Yes in step S2), in step S3, 10 minutes before climbing is notified to the transport vehicle 2. Is sent.

  Further, in step S4, it is determined whether or not the vehicle has reached one minute before the start of climbing. When one minute has been reached (Yes in step S4), the climbing vehicle 1 with respect to the transport vehicle 2 in step S5. Minutes notice is sent. In step S6, it is determined whether or not the climbing is finished. When the climbing is finished (Yes in step S6), a climbing completion notice is transmitted to the transport vehicle 2 in step S7.

  On the other hand, in the transport vehicle 2 that has received the command signal from the management center 3 as described above, the refrigerator control unit 27 executes the process shown in FIG. That is, in step S11, it is determined whether or not a climbing end notification (control signal) has been received. If a climbing end notification (control signal) has not been received (No in step S11), it is determined in next step S12 whether a notification (control signal) one minute before the start of climbing has been received. If the notification (control signal) one minute before the start of climbing has not been received (No in step S12), it is determined whether or not the notification (control signal) 10 minutes before the start of climbing has been received in the next step S13. Is done.

  If notification (control signal) 10 minutes before the start of climbing is not received (No in step S13), normal control of the refrigerator 6 is performed in step S14. On the other hand, when a notification (control signal) 10 minutes before the start of climbing is received (Yes in step S13), in step S15, the target temperature of the cool box 4 is higher than the normal target temperature (set temperature). Also, for example, the forced cooling temperature is lowered by 5 ° C. As a result, the forced cooling operation of the refrigerator 6 is executed, and the inside of the cool box 4 is brought into a supercooled state at a lower temperature than in the normal operation.

  Thereafter, when a notification (control signal) one minute before the start of climbing is received (Yes in step S12), the compressor 29 is turned off in step S16, and the operation of the refrigerator 6 is stopped. Thus, the compressor 29 is turned off while the transport vehicle 2 is traveling uphill. And when the notification (control signal) of completion | finish of an uphill is received (it is Yes in step S11), control with respect to the refrigerator 6 is returned to normal in step S14. Thus, when the transport vehicle 2 finishes traveling uphill, the control of the refrigerator 6 is returned to the normal target temperature.

  Although not shown in the figure, the refrigerator control unit 27 gradually increases the temperature in the cool box 4 while the transport vehicle 2 is traveling uphill, that is, when the compressor 29 is forcibly turned off. When the temperature detected by the internal temperature sensor 28 reaches the upper limit temperature, the control of the refrigerator 6 is returned to normal.

  Furthermore, in the present embodiment, as described above, the management center 3 (server 10) has a downhill having a height difference of a predetermined level or more on the other side of the travel route of the transport vehicle 2 during transport based on the map data. Monitor for the presence. When it is determined that there is a downhill, the process shown in the flowchart of FIG. 6 is executed. 7 shows a control procedure of the refrigerator 6 that is performed by the refrigerator control unit 27 when the transport vehicle 2 receives a downhill command signal from the management center 3.

  That is, in FIG. 6, in step S21, it is determined based on the map data whether there is a downhill having an altitude difference of a predetermined level or more in the predicted travel route to the delivery destination of the transport vehicle 2. In step S22, it is determined whether or not the current position during travel of the transport vehicle 2 has reached a downhill (downhill has started), and in step S23, the current position during travel of the transport vehicle 2 ends the downhill. It is judged whether or not. When the current position of the transport vehicle 2 approaches a downhill (Yes in Step S22), a downhill start notification is transmitted to the transport vehicle 2 in Step S24. When the downhill is completed (Yes in step S23), a downhill completion notification is transmitted to the transport vehicle 2 in step S25.

  On the other hand, in the transport vehicle 2 that has received the downhill command signal from the management center 3, the refrigerator control unit 27 executes the process shown in FIG. That is, in step S31, it is determined whether or not a notification of the end of downhill is received from the management center 3, and in step S32, it is determined whether or not a notification of start of downhill is received from the management center 3. When any notification is not received (No in step S32), normal control for the refrigerator 6 is performed in step S33.

  On the other hand, when the notification of the start of the downhill is received from the management center 3 (Yes in step S32), the target temperature of the cool box 4 is, for example, 5 less than the normal target temperature (set temperature) in step S34. The forced cooling temperature is lowered by ℃. As a result, the forced cooling operation of the refrigerator 6 is executed, and the inside of the cool box 4 is brought into a supercooled state at a lower temperature than in the normal operation. Thereafter, when a notice of the end of the downhill is received (Yes in Step S31), the control on the refrigerator 6 is returned to normal in Step S33.

  Thus, according to the operation management system 1 of the present embodiment, the management center 3 manages the operation by monitoring the position and speed of the transport vehicle 2 through communication with the transport vehicle 2. When the center 3 determines that there is an uphill having a height difference of a predetermined level or more ahead of the travel route of the transport vehicle 2 during transport, a command signal for cooling control is transmitted to the transport vehicle 2. When the command signal is received, the refrigerator control unit 27 of the transport vehicle 2 causes the cooler 4 to overcool at a lower temperature than during normal operation until the transport vehicle 2 reaches the uphill. A forced cooling operation for controlling the refrigerator 6 to be in a state is executed.

  By executing this forced cooling operation, the inside of the cool box 4 of the transport vehicle 2 becomes overcooled, and then the climbing of the uphill is continued for a while without driving the refrigerator 6 (compressor 29). It can be maintained and low temperature can be ensured. Therefore, when the transport vehicle 2 is climbing up, the drive of the compressor 29 can be suppressed, and the load on the engine 5 can be reduced. As a result, according to the present embodiment, the transport vehicle 2 having the cold storage 4 and the management center 3 that manages the transport vehicle 32 are communicably connected to each other. There is an excellent effect that the load can be reduced and the climbing performance can be secured.

  In particular, in this embodiment, even when there is a downhill on the travel route of the transport vehicle 2, the cooler 4 is placed in an overcooled state at a lower temperature than during normal operation while the transport vehicle 2 is traveling on the downhill. Since the second forced cooling operation for controlling the refrigerator 6 is executed as described above, when the load on the engine 5 is small, it is possible to store cold if the inside of the cool box 4 is excessively cooled, There is also an advantage that the refrigerator 6 can be operated efficiently while reducing the load on the engine 5 during normal operation.

  In the above embodiment, the forced cooling operation is executed for a predetermined time (10 minutes) before the estimated arrival time of the transport vehicle 2 to the uphill. However, the position of the transport vehicle 2 is changed from the start point of the uphill. A configuration may be adopted in which forced cooling operation is started when a predetermined distance (for example, 10 km) is reached. In the above embodiment, the forced cooling temperature is decreased by 5 ° C. from the set temperature regardless of the slope or duration of the uphill. However, depending on the slope or duration of the uphill, the gradient or duration is changed. The forced cooling operation of the refrigerator 6 may be executed so that the degree of overcooling increases as the value increases. It goes without saying that the forced cooling temperature may be adjusted according to the type of transport vehicle and the size of the cold storage.

  Furthermore, in the second forced cooling operation on the downhill, the forced cooling temperature may be different from that on the uphill. The second forced cooling operation on the downhill may be performed as necessary. Specific values such as forced cooling temperature and command signal transmission time are merely examples, and various changes can be made. In addition, various modifications can be made to the management center, the vehicle-mounted terminal, the communication means, the hardware configuration of the refrigerator, and the like. It is.

  In the drawings, 1 is an operation management system, 2 is a transport vehicle, 3 is a management center, 4 is a cold storage, 5 is an engine, 6 is a refrigerator, 7 is a wireless communication unit (communication means), 8 is an in-vehicle terminal, 9 Is a communication unit (communication means), 10 is a server (command means), 11 is a database, 17 is a control device, 18 is a GPS receiver, 27 is a refrigerator control unit (refrigerator control means), and 28 is an internal temperature sensor. (Temperature detector), 29 is a compressor, and 36 is an electromagnetic clutch.

Claims (7)

A transport vehicle having an engine as a travel drive source and having a cold storage that cools and stores articles, and a management center that monitors the position and speed of the transport vehicle and manages its operation are communicably connected via communication means. A vehicle operation management system,
The transport vehicle has a compressor driven by the engine and cools the inside of the cool box, a temperature detector for detecting the temperature in the cool box, and the detection based on the temperature detector. A refrigerator control means for controlling the refrigerator so that the inside of the cold storage chamber reaches a target temperature,
When the management center determines that there is an uphill having a height difference of a predetermined level or more on the other side of the travel route of the transport vehicle during transport based on the map data, the control center is used for cooling control for the transport vehicle. Command means for transmitting the command signal of
When the transport vehicle receives the command signal, the refrigerator is controlled by the refrigerator control means until the transport vehicle reaches the uphill. A vehicle operation management system, wherein a forced cooling operation for controlling the refrigerator is performed.   The refrigerator control means, when receiving the command signal, is a predetermined time before the expected arrival time of the transport vehicle to the uphill, or the position of the transport vehicle is a predetermined distance from the start point of the uphill 2. The vehicle according to claim 1, wherein the forced cooling operation of the refrigerator is executed by changing the target temperature to a forced cooling temperature lower than a target temperature at a normal time when reaching the near side. 3. Operation management system.   3. The vehicle operation management system according to claim 1, wherein the refrigerator control unit turns off the compressor while the transport vehicle is traveling on the uphill.   The said refrigerator control means returns to the control of the said refrigerator at the target temperature at the normal time, when this transport vehicle complete | finishes the climbing slope driving | running | working. The vehicle operation management system according to Item.   The refrigerator control means performs the forced cooling operation of the refrigerator so that the degree of overcooling is increased as the slope or the continuous distance is increased according to the slope or the continuous distance of the uphill. The vehicle operation management system according to any one of claims 1 to 4.   The refrigerator control means returns the control of the refrigerator to normal when the temperature detected by the temperature detector reaches an upper limit temperature while the transport vehicle is traveling on the uphill. Item 6. The vehicle operation management system according to any one of Items 1 to 5. When the management center determines that there is a downhill having an altitude difference of a predetermined level or more on the travel route during transportation of the transport vehicle based on the map data, the management center descends with respect to the transport vehicle. Send the slope command signal,
When the transport vehicle receives the downhill command signal, the refrigerator control means performs overcooling at a lower temperature in the cold storage than during normal operation while the transport vehicle is traveling on the downhill. The vehicle operation management system according to any one of claims 1 to 6, wherein a second forced cooling operation for controlling the refrigerator to be in a state is executed.

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