Multifunctional controller and power system for port mobile machinery

Abstract

The embodiment of the utility model provides a multifunctional controller and a power system for port mobile machinery. The multifunctional controller comprises a high-voltage direct-current input end, a main control module, a plurality of motor control modules, a plurality of control branches, a plurality of switch modules and an external signal end, the plurality of motor control modules comprise a walking driving motor control module and a main pump driving motor control module; according to the technical scheme, the problems that an existing port mobile machine needs a plurality of motors or electric devices, a plurality of controller products need to be configured, and space layout, installation and debugging, maintenance and the like are difficult are solved; a plurality of motors or electric devices which are externally connected can be controlled respectively, so that the spatial layout of the port mobile machinery is simplified, and meanwhile, one multifunctional controller is used for centralized control, so that the control efficiency is improved.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of port mobile machinery, and in particular to a multifunctional controller and a power system for port mobile machinery. Background Art

[0002] Port mobile machinery includes empty container handlers, reach stackers, loaders and other products, which usually use fuel as the driving energy. How to achieve clean energy substitution for port mobile machinery has become an urgent problem to be solved by ports.

[0003] In response to this situation, some port machinery manufacturers have launched electric port mobile machinery products. The mainstream electric port mobile machinery products on the market are divided into two technical routes: centralized drive and distributed drive. The centralized drive technical route is to use one motor to drive multiple systems including walking, lifting, braking, air conditioning, generators, etc. This technical route is simple to implement and low in cost, but there are problems such as long transmission routes and large energy losses during the transmission process; the distributed drive technical route refers to using multiple motors to drive multiple systems including walking, lifting, braking, air conditioning, generators, etc. The distributed drive technical route has the advantages of a short energy transmission route, precise control of each power system, and convenient energy recovery.

[0004] However, there are currently no controller products specifically designed for mobile port machinery products, such as empty container handlers and reach stackers. Corresponding motor controllers can only be configured for distributed drive motors. If the equipment requires several motors or electrical components, several controller products need to be configured, which leads to many difficulties in the design space layout, installation and commissioning, maintenance and repair of electric port machinery products. Utility Model Content

[0005] An embodiment of the utility model provides a multifunctional controller and power system for port mobile machinery. The multifunctional controller includes multiple control modules to realize centralized control of multiple external motors and electrical components, thereby realizing centralized control of a multi-channel power system. At the same time, multiple modules of the distributed drive technology route do not interfere with each other, which is conducive to increasing the independence of the control of the port mobile machinery.

[0006] In a first aspect, an embodiment of the utility model provides a multifunctional controller for a port mobile machinery, including a high-voltage DC input terminal, a main control module, a plurality of motor control modules, a plurality of control branches, a plurality of switch modules and an external signal terminal;

[0007] The multiple motor control modules include a walking drive motor control module and a main pump drive motor control module; the multiple control branches include a first control branch and a second control branch; the multiple switch modules include a first switch module and a second switch module;

[0008] One end of each of the first control branch and the second control branch is connected to the high-voltage DC input terminal, and the high-voltage DC input terminal is used to be electrically connected to an external power supply; the other end of the first control branch is electrically connected to the input terminal of the travel drive motor control module; the first switch module is located in the first control branch, and is connected in series between the high-voltage DC input terminal and the travel drive motor control module; the other end of the second control branch is electrically connected to the input terminal of the main pump drive motor control module; the second switch module is located in the second control branch, and is connected in series between the high-voltage DC input terminal and the main pump drive motor control module;

[0009] The main control module is electrically connected to the external signal end to communicate with the vehicle controller, and is electrically connected to the control ends of the plurality of switch modules. The main control module controls whether each switch module is turned on according to the first control instruction of the vehicle controller to control whether each motor control module is turned on with the external power supply.

[0010] Optionally, the control terminals of the plurality of motor control modules are electrically connected to the external signal terminal to communicate with the vehicle controller.

[0011] When the motor control module is powered on, it adjusts the frequency and / or amplitude of the output voltage according to the second control instruction of the vehicle controller.

[0012] Optionally, the motor control module further includes a potential energy recovery motor control module, the switch module further includes a third switch module, and the control branch further includes a third control branch;

[0013] One end of the third control branch is connected to the high-voltage DC input terminal, and the other end of the third control branch is electrically connected to the output terminal of the potential energy recovery motor control module; the third switch module is located in the third control branch, and is connected in series between the high-voltage DC input terminal and the potential energy recovery motor control module; the high-voltage DC input terminal is multiplexed as a high-voltage AC output terminal;

[0014] The main control module is electrically connected to the control end of the third switch module. The main control module controls whether the third switch module is turned on according to the first control instruction of the vehicle controller to control the potential energy recovery motor control module to be turned on with the external power supply.

[0015] Optionally, the motor control module further includes an air conditioning motor control module, the switch module further includes a fourth switch module, and the control branch further includes a fourth control branch;

[0016] One end of the fourth control branch is connected to the high-voltage DC input terminal, and the other end of the fourth control branch is electrically connected to the input terminal of the air-conditioning motor control module; the fourth switch module is located in the fourth control branch and is connected in series between the high-voltage DC input terminal and the air-conditioning motor control module;

[0017] The main control module is electrically connected to the control end of the fourth switch module. The main control module controls whether the fourth switch module is turned on according to the first control instruction of the vehicle controller to control whether the air conditioning motor control module is powered on.

[0018] Optionally, the control end of the air-conditioning motor control module is electrically connected to the external signal end to communicate with the vehicle controller. When the air-conditioning motor control module is powered on, it adjusts the frequency and / or amplitude of the output voltage according to the second control instruction of the vehicle controller.

[0019] Optionally, the multifunctional controller further includes a low voltage DC output module; the switch module further includes a fifth switch module; the control branch further includes a fifth control branch;

[0020] The input end of the low-voltage DC output module is electrically connected to the high-voltage DC input end through the fifth control branch, and the fifth switch module is connected in series between the low-voltage DC output module and the high-voltage DC input end;

[0021] The main control module is also electrically connected to the control end of the fifth switch module. The main control module controls whether the fifth switch module is turned on according to the first control instruction of the vehicle controller to control whether the low-voltage DC output module is powered.

[0022] Optionally, the control end of the low-voltage DC output module is electrically connected to the external signal end to communicate with the vehicle controller;

[0023] When the low-voltage DC output module is powered on, it adjusts the amplitude of the output low-voltage DC power according to the second control instruction of the vehicle controller.

[0024] Optionally, the multifunctional controller further includes a plurality of fuses; the plurality of fuses are respectively located in the plurality of control branches, and one fuse is connected in series between one of the switch modules and one of the motor control modules.

[0025] Optionally, the multifunctional controller further comprises a quick-break module; the quick-break module is connected in series between the high-voltage DC input terminal and the plurality of control branches, and the control terminal of the quick-break module is electrically connected to the main control module;

[0026] The main control module also controls the quick-break module to shut down according to the third control instruction of the vehicle controller, so as to control each of the motor control modules to lose power.

[0027] In a second aspect, an embodiment of the present invention further provides a power system for a port mobile machinery, comprising a multifunctional controller for a port mobile machinery as described in any one of the first aspects of the present invention.

[0028] The utility model provides a multifunctional controller and power system for a port mobile machinery, wherein the multifunctional controller comprises a high-voltage DC input terminal, a main control module, a plurality of motor control modules, a plurality of control branches, a plurality of switch modules and an external signal terminal; the plurality of motor control modules comprise a travel drive motor control module and a main pump drive motor control module; the plurality of control branches comprise a first control branch and a second control branch; the plurality of switch modules comprise a first switch module and a second switch module; one end of the first control branch and the second control branch are both connected to the high-voltage DC input terminal, and the high-voltage DC input terminal is used to be electrically connected to an external power supply; the other end of the first control branch is connected to the travel drive The input end of the motor control module is electrically connected; the first switch module is located in the first control branch, and is connected in series between the high-voltage DC input end and the walking drive motor control module; the other end of the second control branch is electrically connected to the input end of the main pump drive motor control module; the second switch module is located in the second control branch, and is connected in series between the high-voltage DC input end and the main pump drive motor control module; the main control module is electrically connected to the external signal end to communicate with the vehicle controller, and is electrically connected to the control end of multiple switch modules. The main control module controls whether each switch module is turned on according to the first control instruction of the vehicle controller to control whether each motor control module is turned on with the external power supply. The above technical solution solves the problem that the existing port mobile machinery needs several motors or electrical components, and needs to configure several controller products, which brings difficulties to the spatial layout, installation and commissioning, maintenance and repair. By setting a multi-functional controller, the multi-functional controller includes multiple control modules, which can control multiple externally connected motors or electrical components respectively, thereby simplifying the spatial layout of the port mobile machinery, and using a multi-functional controller for centralized control, thereby improving the control efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a structural schematic diagram of a multifunctional controller for port mobile machinery provided by an embodiment of the utility model;

[0031] Figure 2 This is an external structural diagram of a multifunctional controller for port mobile machinery provided by an embodiment of the utility model;

[0032] Figure 3 It is an external structural diagram of the other side of a multifunctional controller for port mobile machinery provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0034] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. It should be noted that the directional words such as "upper", "lower", "left", "right" and the like described in the embodiments of the present invention are described at the angles shown in the accompanying drawings and should not be understood as limitations on the embodiments of the present invention. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is formed "on" or "under" another element, it can not only be directly formed "on" or "under" another element, but also indirectly formed "on" or "under" another element through an intermediate element. The terms "first", "second" and the like are only used for descriptive purposes and do not represent any order, quantity or importance, but are only used to distinguish different components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific circumstances.

[0035] The term "including" and its variations used in the present invention are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment".

[0036] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish the corresponding contents, and are not used to limit the order or interdependence.

[0037] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0038] Figure 1 This is a schematic diagram of the structure of a multifunctional controller for port mobile machinery provided by the embodiment of the utility model, with reference to Figure 1, including a high-voltage DC input terminal 10, a main control module 20, multiple motor control modules 30, multiple control branches 40, multiple switch modules 50 and an external signal terminal 60; the multiple motor control modules 30 include a walking drive motor control module 31 and a main pump drive motor control module 32; the multiple control branches 40 include a first control branch 41 and a second control branch 42; the multiple switch modules 50 include a first switch module 51 and a second switch module 52; one end of the first control branch 41 and the second control branch 42 are both connected to the high-voltage DC input terminal 10, and the high-voltage DC input terminal 10 is used to be electrically connected to an external power supply; the other end of the first control branch 41 is electrically connected to the input end of the walking drive motor control module 30; the first The switch module 51 is located in the first control branch 41, and is connected in series between the high-voltage DC input terminal 10 and the walking drive motor control module 30; the other end of the second control branch 42 is electrically connected to the input end of the main pump drive motor control module 32; the second switch module 52 is located in the second control branch 42, and is connected in series between the high-voltage DC input terminal 10 and the main pump drive motor control module 40; the main control module 20 is electrically connected to the external signal terminal 60 to communicate with the vehicle controller (not shown in the figure), and is electrically connected to the control end of the switch module 50. The main control module 20 controls whether each switch module 50 is turned on according to the first control instruction of the vehicle controller to control whether each motor control module 30 is turned on with the external power supply.

[0039] Specifically, refer to Figure 1 Since the port machinery needs to call multiple modules to work during the operation process, it is necessary to make the multi-function controller supply power to the multiple modules to drive the multiple modules to work; illustratively, the multi-function controller needs to convert the high-voltage direct current provided by the external power supply into high-voltage alternating current to supply power to each controlled module, wherein each controlled module can be a vehicle axle, a driving hydraulic pump, etc. Therefore, a high-voltage direct current input terminal 10 is set in the multi-function controller, which is connected to the external power supply to receive the high-voltage direct current output by the external power supply; at the same time, a travel drive motor control module 31 and a main pump drive motor control module 32 are also set. The travel drive motor control module 31 is connected to the high-voltage direct current input terminal 10 through the first control branch 41, so as to obtain high-voltage direct current, and transmit the current to the travel drive motor in the vehicle axle connected thereto, so as to drive the port mobile machinery to travel.

[0040] Among them, a first switch module 51 is also provided in the first control branch 41, and the control end of the first switch module 51 is electrically connected to the main control module 20, and the main control module 20 is also electrically connected to the external signal terminal 60 to receive the first control instruction of the vehicle controller. The main control module 20 can control whether the first switch module 51 is turned on according to the first control instruction output by the vehicle controller to the external signal terminal 60, thereby controlling whether the travel drive motor control module 31 supplies power to the travel drive motor in the externally connected axle. A second switch module 52 is also provided in the second control branch 42, and the control end of the second switch module 52 is electrically connected to the main control module 20, and the main control module 20 is also electrically connected to the external signal terminal 60 to receive the first control instruction of the vehicle controller. The main control module 20 can control whether the second switch module 52 is turned on according to the first control instruction output by the vehicle controller to the external signal terminal 60, thereby controlling whether the main pump drive motor control module 32 supplies power to the externally connected main pump drive motor.

[0041] It should be noted that the main control module 20 can control the first switch module 51 and the second switch module 52 according to the first control instruction, that is, it does not control multiple switch modules to be turned on or off at the same time according to the first control instruction.

[0042] The utility model provides a multifunctional controller for a port mobile machinery, comprising a high-voltage DC input terminal, a main control module, a plurality of motor control modules, a plurality of control branches, a plurality of switch modules and an external signal terminal; the plurality of motor control modules include a travel drive motor control module and a main pump drive motor control module; the plurality of control branches include a first control branch and a second control branch; the plurality of switch modules include a first switch module and a second switch module; one end of the first control branch and the second control branch are both connected to the high-voltage DC input terminal, and the high-voltage DC input terminal is used to be electrically connected to an external power supply; the other end of the first control branch is connected to the travel drive motor control module The input end is electrically connected; the first switch module is located in the first control branch, and is connected in series between the high-voltage DC input end and the walking drive motor control module; the other end of the second control branch is electrically connected to the input end of the main pump drive motor control module; the second switch module is located in the second control branch, and is connected in series between the high-voltage DC input end and the main pump drive motor control module; the main control module is electrically connected to the external signal end to communicate with the vehicle controller, and is electrically connected to the control end of multiple switch modules. The main control module controls whether each switch module is turned on according to the first control instruction of the vehicle controller to control whether each motor control module is turned on with the external power supply. The above technical solution solves the problem that the existing port mobile machinery needs several motors or electrical components, and needs to configure several controller products, which brings difficulties to the spatial layout, installation and commissioning, maintenance and repair. By setting a multi-function controller, the multi-function controller includes multiple control modules, which can control multiple externally connected motors or electrical components respectively, thereby simplifying the spatial layout of the port mobile machinery, and using a multi-function controller at the same time, improving the control efficiency.

[0043] Optionally, the motor control module 30 also includes a potential energy recovery motor control module 33, the switch module 50 also includes a third switch module 53, and the control branch 40 also includes a third control branch 43; one end of the third control branch 43 is connected to the high-voltage DC input terminal 10, and the other end of the third control branch 43 is electrically connected to the output end of the potential energy recovery motor control module 33; the third switch module 53 is located in the third control branch 43, and is connected in series between the high-voltage DC input terminal 10 and the potential energy recovery motor control module 33; the high-voltage DC input terminal 10 is multiplexed as a high-voltage AC output terminal; the main control module 20 is electrically connected to the control end of the third switch module 53, and the main control module 20 controls whether the third switch module is turned on according to the first control instruction of the vehicle controller, so as to control the potential energy recovery motor control module 33 to be turned on with the external power supply.

[0044] For example, during the operation of the port mobile machinery, the front loaders and the like will have a large number of heavy-loaded lowering actions, and at this time there will be a large change in gravitational potential energy. Therefore, the potential energy recovery motor of the port mobile machinery will use the gravitational potential energy to generate a large amount of alternating current. At this time, the potential energy recovery motor control module 33 of the multi-functional controller needs to convert a large amount of alternating current into direct current and transmit it to the high-voltage direct current output terminal 11 through the third control branch 43 to charge the external power supply. Therefore, a third switch module 53 is also provided in the third control branch 43. The control end of the third switch module 53 is electrically connected to the main control module 20, and the main control module 20 is also electrically connected to the external signal terminal 60 to receive the third signal of the vehicle controller. A control instruction, the main control module 20 can control whether the third switch module 53 is turned on according to the first control instruction output by the vehicle controller to the external signal terminal 60, thereby controlling whether the potential energy recovery motor control module 33 receives the AC power provided by the externally connected potential energy recovery motor; exemplarily, when the external power supply is fully charged, there is no need to charge it at this time, so the third switch module 53 is controlled to be in the off state; and the external power supply has less power. At this time, in order to ensure the normal operation of the port mobile machinery, it needs to be charged, that is, it is necessary to control the third switch module 53 to be turned on to control the potential energy recovery motor control module 33 to receive the AC power provided by the externally connected potential energy recovery motor.

[0045] Optional, continue to refer to Figure 1 The control terminals of the plurality of motor control modules 30 are all electrically connected to the external signal terminal 60 to communicate with the vehicle controller. When the motor control module 30 is powered on, it adjusts the frequency and / or amplitude of the output voltage according to the second control instruction of the vehicle controller. Exemplarily, the motor control module 30 includes three IGBTs, and the frequency of the output voltage is adjusted by controlling the turn-off frequency of the IGBTs.

[0046] Specifically, since the frequency and / or amplitude of the output voltage of the motor control module 30 determines the torque of the motor connected thereto, for example, when the port mobile machinery needs to climb a slope, the vehicle controller needs to output a second control instruction to the travel drive motor control module 31 to increase the frequency and / or amplitude of the output voltage to the externally connected travel drive motor, thereby increasing the torque of the travel drive motor; and when the port mobile machinery needs to carry heavy goods, the main pump drive motor connected to the main pump drive motor control module 32 needs to increase the torque, so the second control instruction is output to the main pump drive motor control module 32 of the multi-function controller to increase the frequency and / or amplitude of its output voltage. When the external power supply to the multi-function controller is insufficient and continues to charge, if the port mobile machinery is performing a heavy load lowering action at this time, that is, the potential energy recovery motor is generating AC power, at this time, in order to ensure the normal operation of the port mobile machinery, it is necessary to increase the charging speed of the potential energy recovery motor for the external power supply, and the vehicle controller outputs a second control instruction to the potential energy recovery motor control module 33 to increase the amplitude of the output voltage of the potential energy recovery motor control module 33, thereby speeding up the charging speed.

[0047] Optionally, continue to refer to Figure 1 The motor control module 30 also includes an air-conditioning motor control module 34, the switch module 50 also includes a fourth switch module 54, and the control branch 40 also includes a fourth control branch 44; one end of the fourth control branch 44 is connected to the high-voltage DC input terminal 10, and the other end of the fourth control branch 44 is electrically connected to the input end of the air-conditioning motor control module 34; the fourth switch module 54 is located in the fourth control branch 44, and is connected in series between the high-voltage DC input terminal 10 and the air-conditioning motor control module 34; the main control module 20 is electrically connected to the control end of the fourth switch module, and the main control module 20 controls whether the fourth switch module 54 is turned on according to the first control instruction of the vehicle controller to control whether the air-conditioning motor control module 34 is powered.

[0048] Specifically, since the port mobile machinery is also provided with an air conditioner, which needs electric energy to drive, the multifunctional controller is also provided with an air conditioner motor control module 34 for supplying power to the air conditioner motor, and the high-voltage direct current of the external power source is converted into the low-voltage alternating current required by the air conditioner motor through the air conditioner motor control module 34. At the same time, a fourth switch module 54 is also provided in the fourth control branch 44 connecting the high-voltage direct current input terminal 10 and the air conditioner motor control module 34, so that whether to supply power to the externally connected air conditioner motor can be selected by opening and closing the fourth switch module 54.

[0049] Optionally, the control end of the air-conditioning motor control module 34 is electrically connected to the external signal end 60 to communicate with the vehicle controller. When the air-conditioning motor control module 34 is powered on, it adjusts the frequency and / or amplitude of the output voltage according to the second control instruction of the vehicle controller.

[0050] For example, if the external power supply is insufficient and the port mobile machinery is in the climbing stage, that is, the electric energy needs to be transmitted to the travel drive motor through the travel drive motor control module 31, and accordingly, the power supply of other working modules needs to be reduced, that is, the frequency and / or amplitude of the voltage output to the air-conditioning motor by the air-conditioning motor control module 34 is reduced through the second control instruction.

[0051] Optionally, continue to refer to Figure 1 The multifunctional controller also includes a low-voltage DC output module 70; the switch module 50 also includes a fifth switch module 55; the control branch 40 also includes a fifth control branch 45; the input end of the low-voltage DC output module 70 is electrically connected to the high-voltage DC input end 10 through the fifth control branch 45, and the fifth switch module is connected in series between the low-voltage DC output module 70 and the high-voltage DC input end 10; the main control module 20 is also electrically connected to the control end of the fifth switch module 55, and the main control module 20 controls whether the fifth switch module 55 is turned on according to the first control instruction of the vehicle controller to control whether the low-voltage DC output module 70 is powered.

[0052] For details, please refer to Figure 1 Since the port mobile machinery is also equipped with a plurality of low-voltage electrical appliances, for example, lighting lamps, alarms and other devices, the low-voltage electrical appliances also need to be powered by the multi-function controller, so a low-voltage DC output module 70 is also provided in the multi-function controller. Similarly, a fifth switch module 55 is provided in the fifth control branch 45 connecting the low-voltage DC output module 70 and the high-voltage DC input terminal 10 to control whether to supply power to the externally connected low-voltage electrical appliances.

[0053] Optionally, the control end of the low-voltage DC output module 70 is electrically connected to the external signal end 60 to communicate with the vehicle controller; when the low-voltage DC output module 70 is powered on, it adjusts the amplitude of the output low-voltage DC power according to the second control instruction of the vehicle controller.

[0054] Exemplarily, the buzzer connected to the low-voltage DC output module 70 serves as an alarm. If the environment is noisy, the buzzer sound needs to be increased, that is, the amplitude of the low-voltage DC output module 70 is increased.

[0055] Optionally, refer to Figure 1 The multifunctional controller further includes a plurality of fuses 80 ; the plurality of fuses 80 are respectively located in the plurality of control branches 40 , and a fuse 80 is connected in series between a switch module 50 and a motor control module 30 .

[0056] Specifically, in order to prevent the current output by the external power supply from being too large, thereby causing damage to each motor control module 30, a fuse 80 is set in each control branch 40. When the current on the control branch 40 exceeds the tolerable threshold, the fuse 80 will be blown, thereby controlling the control branch 40 to be disconnected, thereby preventing the motor control module 30 from bearing a large current. Or because a motor control module 30 is damaged, resulting in a large current value in the control branch 40 connected to it, in order to avoid damage to other motor control modules 30, a fuse 80 is set, thereby disconnecting the control branch 40 connected to the damaged motor control module 30, and a fault in one path does not affect the operation of other paths.

[0057] Optionally, a quick-break module 90 is also included; the quick-break module 90 is connected in series between the high-voltage DC input terminal 10 and the multiple control branches 40, and the control end of the quick-break module 90 is electrically connected to the main control module 20; the main control module 20 also controls the quick-break module 90 to shut down according to the third control instruction of the vehicle controller to control the power loss of each motor control module 30.

[0058] Specifically, refer to Figure 1 A quick-break module 90 is also provided between each control branch 40 and the high-voltage DC input terminal 10. The control end of the quick-break module 90 is controlled by the main control module 20. When the port mobile machinery fails and needs to be powered off for maintenance, the main control module 20 controls the quick-break module 90 to shut down according to the third control instruction of the vehicle controller, thereby disconnecting the connection between the high-voltage DC input terminal 10 and each motor control module 30, and controlling each motor control module 30 to lose power.

[0059] Optionally, the multifunctional controller also includes an insulation monitor 100; the insulation monitor 100 is connected in series between the positive output terminal and the negative output terminal of the high-voltage DC input terminal 10, and is connected to the external signal terminal 60. The insulation monitor 100 detects whether there is voltage between the positive output terminal and the negative output terminal of the high-voltage DC input terminal 10, thereby determining whether the external power supply is normally supplying power to the multifunctional controller, and transmits the monitored information to the vehicle controller through the external signal terminal 60.

[0060] Figure 2 This is an external structural diagram of a multifunctional controller for port mobile machinery provided by an embodiment of the utility model. Figure 3 This is an external structural diagram of the other side of a multifunctional controller for a port mobile machinery provided by an embodiment of the utility model; Figure 2 , Figure 3The multifunctional controller includes a shell structure, which includes a DC input port 101. An external power source can be connected to the multifunctional controller through the DC input port 101 to be electrically connected to the high-voltage DC input terminal 10 of the multifunctional controller to supply power to the multifunctional controller; it also includes a travel drive motor connection port 311. An external travel drive motor can be connected to the multifunctional controller through the travel drive motor connection port 311 to be electrically connected to the travel drive motor control module 31 of the multifunctional controller; it also includes a main pump drive motor connection port 321. An external main pump drive motor can be connected to the multifunctional controller through the main pump drive connection port 321 to be electrically connected to the travel drive motor control module 31 of the multifunctional controller. The multifunctional controller is electrically connected to the main pump drive motor control module 32; it also includes a potential energy recovery motor connection port 331, through which an external potential energy recovery motor is connected to the multifunctional controller to be electrically connected to the potential energy recovery motor control module 33; it also includes an air conditioning motor connection port 341, through which an external air conditioning motor can be connected to the multifunctional controller to be electrically connected to the air conditioning motor control module 34; a low-voltage DC output port 701 is also provided on the housing of the multifunctional controller, through which an external low-voltage electrical appliance can be connected to the low-voltage DC output module 70 of the controller. Figure 3 The multifunctional controller also includes a water cooling heat dissipation pipeline 110. Specifically, the water cooling heat dissipation pipeline 110 can be used to dissipate heat for the multifunctional controller to improve the heat dissipation effect of the multifunctional controller, thereby improving the working performance of the port mobile machinery. A control port 601 is also provided, through which the vehicle controller can be connected to the external signal terminal 60 of the multifunctional controller, thereby outputting control instructions to the multifunctional controller.

[0061] Based on the same concept, the embodiment of the utility model also provides a power system for port mobile machinery, which includes a multifunctional controller as provided in any one of the embodiments of the utility model. Therefore, the power system for port mobile machinery provided by the embodiment of the utility model has the corresponding beneficial effects of the multifunctional controller provided by the embodiment of the utility model, which will not be repeated here.

[0062] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, combinations and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A multifunctional controller for port mobile machinery, characterized in that: It includes a high-voltage DC input terminal, a main control module, multiple motor control modules, multiple control branches, multiple switch modules and an external signal terminal; The multiple motor control modules include a walking drive motor control module and a main pump drive motor control module; the multiple control branches include a first control branch and a second control branch; the multiple switch modules include a first switch module and a second switch module; One end of each of the first control branch and the second control branch is connected to the high-voltage DC input terminal, and the high-voltage DC input terminal is used to be electrically connected to an external power supply; the other end of the first control branch is electrically connected to the input terminal of the travel drive motor control module; the first switch module is located in the first control branch, and is connected in series between the high-voltage DC input terminal and the travel drive motor control module; the other end of the second control branch is electrically connected to the input terminal of the main pump drive motor control module; the second switch module is located in the second control branch, and is connected in series between the high-voltage DC input terminal and the main pump drive motor control module; The main control module is electrically connected to the external signal end to communicate with the vehicle controller, and is electrically connected to the control ends of the plurality of switch modules. The main control module controls whether each switch module is turned on according to the first control instruction of the vehicle controller to control whether each motor control module is turned on with the external power supply.

2. The multifunctional controller according to claim 1, characterized in that: The control terminals of the plurality of motor control modules are electrically connected to the external signal terminal to communicate with the vehicle controller. When the motor control module is powered on, it adjusts the frequency and / or amplitude of the output voltage according to the second control instruction of the vehicle controller.

3. The multifunctional controller according to claim 2, characterized in that: The motor control module further includes a potential energy recovery motor control module, the switch module further includes a third switch module, and the control branch further includes a third control branch; One end of the third control branch is connected to the high-voltage DC input terminal, and the other end of the third control branch is electrically connected to the output terminal of the potential energy recovery motor control module; the third switch module is located in the third control branch, and is connected in series between the high-voltage DC input terminal and the potential energy recovery motor control module; the high-voltage DC input terminal is multiplexed as a high-voltage AC output terminal; The main control module is electrically connected to the control end of the third switch module. The main control module controls whether the third switch module is turned on according to the first control instruction of the vehicle controller to control the potential energy recovery motor control module to be turned on with the external power supply.

4. The multifunctional controller according to claim 2, characterized in that: The motor control module further includes an air conditioning motor control module, the switch module further includes a fourth switch module, and the control branch further includes a fourth control branch; One end of the fourth control branch is connected to the high-voltage DC input terminal, and the other end of the fourth control branch is electrically connected to the input terminal of the air-conditioning motor control module; the fourth switch module is located in the fourth control branch and is connected in series between the high-voltage DC input terminal and the air-conditioning motor control module; The main control module is electrically connected to the control end of the fourth switch module. The main control module controls whether the fourth switch module is turned on according to the first control instruction of the vehicle controller to control whether the air conditioning motor control module is powered on.

5. The multifunctional controller according to claim 4, characterized in that: The control end of the air-conditioning motor control module is electrically connected to the external signal end so as to be communicatively connected to the vehicle controller. When the air-conditioning motor control module is powered on, it adjusts the frequency and / or amplitude of the output voltage according to the second control instruction of the vehicle controller.

6. The multifunctional controller according to claim 1, characterized in that: It also includes a low-voltage DC output module; the switch module also includes a fifth switch module; the control branch also includes a fifth control branch; The input end of the low-voltage DC output module is electrically connected to the high-voltage DC input end through the fifth control branch, and the fifth switch module is connected in series between the low-voltage DC output module and the high-voltage DC input end; The main control module is also electrically connected to the control end of the fifth switch module. The main control module controls whether the fifth switch module is turned on according to the first control instruction of the vehicle controller to control whether the low-voltage DC output module is powered.

7. The multifunctional controller according to claim 6, characterized in that: The control end of the low voltage DC output module is electrically connected to the external signal end so as to be communicatively connected to the vehicle controller; When the low-voltage DC output module is powered on, it adjusts the amplitude of the output low-voltage DC power according to the second control instruction of the vehicle controller.

8. The multifunctional controller according to claim 1, characterized in that: It also includes a plurality of fuses; the plurality of fuses are respectively located in a plurality of the control branches, and one fuse is connected in series between one of the switch modules and one of the motor control modules.

9. The multifunctional controller according to claim 1, characterized in that: It also includes a fast-break module; the fast-break module is connected in series between the high-voltage DC input terminal and the plurality of control branches, and the control terminal of the fast-break module is electrically connected to the main control module; The main control module also controls the quick-break module to shut down according to the third control instruction of the vehicle controller, so as to control each of the motor control modules to lose power.

10. A power system for port mobile machinery, characterized in that: The invention comprises a multifunctional controller for port mobile machinery as claimed in any one of claims 1 to 9.

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