CN113859156B - Redundant intelligent power distribution management system for unmanned vehicles - Google Patents
Redundant intelligent power distribution management system for unmanned vehicles Download PDFInfo
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- 239000002131 composite material Substances 0.000 claims abstract description 25
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 7
- 238000005315 distribution function Methods 0.000 claims abstract description 5
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 48
- 229910052744 lithium Inorganic materials 0.000 claims description 48
- 238000000034 method Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 10
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- 238000009413 insulation Methods 0.000 claims description 9
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The invention belongs to the technical field of electronic control of new energy vehicles, and particularly relates to an unmanned vehicle redundant intelligent power distribution management system. The intelligent power distribution management system comprises: the system comprises a wireless control module, a starting control module, an intelligent control module, a composite power management module and an emergency processing module; the intelligent power distribution management system realizes reasonable control of power supply and distribution of the whole vehicle, completes the functions of high-low voltage power conversion, high-low voltage power distribution and safety protection, realizes reasonable distribution of electric energy, dynamic management and on-line state monitoring of loads, ensures reliable and safe operation of a whole vehicle power grid, and provides guarantee for reliable and efficient work of a task system. Compared with the prior art, the power distribution management system provided by the invention is subjected to project joint debugging and sample car tests, the test is successful, the intelligent power distribution function of the unmanned vehicle can be met, and verification is carried out on the unmanned vehicle at present.
Description
Technical Field
The invention belongs to the technical field of electronic control of new energy vehicles, and particularly relates to an unmanned vehicle redundant intelligent power distribution management system.
Background
In order to meet the needs of future development, unmanned vehicles are becoming the necessary trend of the development of the automobile industry at home and abroad gradually due to the characteristics of autonomous or remote control, high intelligence, self-adaptability and the like. The unmanned hybrid vehicle is similar to the traditional hybrid vehicle, and the engine and the battery are used as energy sources to provide power for the whole vehicle system. The whole vehicle system realizes the power supply and consumption use requirements of all-region maneuver by means of the power distribution management system.
Because unmanned vehicles adopt high-low voltage hybrid power supply system, how high-low voltage power conversion is carried out to steady high efficiency is the reliable guarantee of whole car electric wire netting ride comfort, because unmanned vehicles need remote control or independently judge simultaneously, the supply of whole car load electric energy can't be the same with traditional vehicle, adopts personnel on the car to control and carry out control and the management of distribution. And once a certain load distribution branch circuit has distribution faults, the equipment cannot be normally used due to the faults of a key load, and the unmanned vehicle operation is influenced, so that the completion of the whole unmanned vehicle task mode is influenced. How to realize redundant protection of load distribution branches and intelligent distribution management of a whole vehicle electrical system, and guarantee that a whole vehicle power grid runs reliably and safely is a problem which needs to be solved by unmanned vehicles.
Aiming at the problems, special researches are required to be carried out on intelligent power distribution of the unmanned vehicle, and an intelligent power distribution management system suitable for the unmanned vehicle is designed.
Disclosure of Invention
First, the technical problem to be solved
The invention aims to solve the technical problems that: how to provide an unmanned vehicle intelligent power distribution management system, realize the reasonable control of whole car power supply and distribution, accomplish functions such as high-low pressure power conversion, high-low pressure power distribution and safety protection, realize reasonable distribution, dynamic management, the load on-line condition monitoring etc. to the electric energy, guarantee the reliable safe operation of whole car electric wire netting, provide the assurance for the reliable, high-efficient work of mission system.
(II) technical scheme
In order to solve the technical problems, the invention provides an unmanned vehicle redundant intelligent power distribution management system, which comprises: the system comprises a wireless control module, a starting control module, an intelligent control module, a composite power management module and an emergency processing module;
wherein, the compound power management module includes: the system comprises a high-voltage lithium battery, a power module, a high-voltage power distribution protection device, a low-voltage lithium battery and a high-voltage safety and power supply composite management unit, wherein the high-voltage lithium battery, the power module, the high-voltage power distribution protection device, the low-voltage lithium battery and the high-voltage safety and power supply composite management unit are used for completing the power supply and the high-voltage and low-voltage conversion functions of an unmanned vehicle;
the low-voltage lithium battery is used for meeting the high-voltage power-on front-end vehicle low-voltage energy output; the power module and the high-voltage lithium battery are used for outputting high-voltage electric energy after receiving a high-voltage power-on instruction, and finishing insulation detection, pre-charging, current loop detection and power-on functions through the high-voltage power distribution protection device; the high-voltage safety and power supply composite management unit is used for realizing the functions of high-voltage and low-voltage conversion of a power grid, grid connection of a low-voltage lithium battery and composite power supply management;
the wireless control module includes: the remote control terminal, the radio station and the switch are used for completing wireless transmission of instructions and transmission of Ethernet; the remote control terminal is provided with a remote control terminal remote control interface, a wireless starting instruction is sent out through the control interface, and the radio station receives the instruction and transmits the instruction to the switch through the Ethernet; the switch transmits the instruction to the intelligent control module through the Ethernet in the unmanned vehicle;
the intelligent control module includes: the chassis control computer and the electric integrated control unit are used for completing the transmission of instructions from the Ethernet to the CAN network in the vehicle and controlling the low-voltage power supply of related loads; the chassis control computer is used for receiving instructions transmitted by the Ethernet and sending the instructions by using the in-vehicle CAN; the electric comprehensive control unit is used for completing the primary distribution function of the power grid and realizing the functions of isolation distribution, intelligent control and safety protection of each load;
the starting control module comprises a switch box, the switch box comprises a high-voltage switch and a low-voltage switch, and a starting instruction executed by the switch box comprises a low-voltage power-on and power-off function and a high-voltage power-on and power-off function;
the emergency processing module comprises an emergency switch and is used for an unmanned vehicle to meet an emergency power-down emergency; the I/O instruction is uploaded through the on-off state of the emergency switch, and the emergency power down of the whole vehicle is realized through the intelligent control module after acquisition.
The high-voltage safety and power supply composite management unit has a redundancy control function, and can remotely shut down a fault power supply component to ensure normal running of a vehicle.
The redundant power distribution is adopted in the electric integrated control unit, namely, a control board and intelligent power module dual-channel redundant configuration mode is adopted for the key load branch, so that the reliability is improved.
The starting control module comprises a redundant channel, a low-voltage load path is arranged in the switch box and is directly connected with the low-voltage lithium battery, on-off is controlled through a switch, and normal power supply of a key load is ensured under the fault condition.
The intelligent power distribution management process of the whole unmanned vehicle CAN be divided into power-on control, power-off control, operation control and emergency control.
Wherein, in the power-on control process, the control flow is as follows:
the starting control module is electrified under low voltage, the low-voltage lithium battery provides low-voltage electric energy, the low-voltage load defaults to electrify all the electrifying branches, self-checking is carried out, the state, self-checking information and alarm information of the node are reported to the chassis management control computer, and the low-voltage electrification is completed;
the high-voltage lithium battery self-checking system comprises a starting control module, a high-voltage power distribution safety protection device, a chassis management control computer, a high-voltage power distribution branch circuit, a high-voltage power distribution control module, a high-voltage lithium battery self-checking system, a high-voltage power distribution control module and a high-voltage power distribution control module, wherein the starting control module is electrified at high voltage, the high-voltage lithium battery self-checking system outputs high-voltage electric energy, the high-voltage power distribution safety protection device performs insulation detection before electrification and reports an insulation state to the chassis management control computer, then performs pre-charging operation of the high-voltage power distribution branch circuit, and after pre-charging is completed, the high-voltage power;
the high-voltage safety power supply composite management unit detects that the high-voltage is input and the high-voltage power supply switch command is turned on, constant-voltage 28V output is started, grid connection of the low-voltage lithium battery is completed, and the whole vehicle is powered on successfully;
in the power-off control process, the control flow is as follows:
when the whole vehicle is powered off, the starting control module turns off the high-voltage switch firstly and then turns off the low-voltage switch; turning off a high-voltage switch, confirming that a key load including a high-voltage safety and power supply composite management unit stops working at high voltage by a high-voltage distribution protection device, uploading information to a chassis management computer, issuing a power-off command of a high-voltage lithium battery and a power module by the chassis management computer of an intelligent control module, reporting a signal that a positive electrode contactor is turned off to the chassis management computer by the high-voltage lithium battery, discharging residual high-voltage charges on a power grid by the high-voltage distribution protection device through a discharge resistor, and then turning off output; turning off the low-voltage switch, stopping outputting the low-voltage lithium battery, and powering down the whole vehicle successfully;
in the operation control process, the control flow is as follows:
the running state and the load demand of the whole vehicle are monitored through a chassis control computer, related instructions sent by a wireless control module are monitored on line, and the on-off control and the safety protection of a power distribution branch are carried out by an electric comprehensive control unit; and a remote control interface of a remote control end is established at the wireless control module, the remote control interface of the remote control end is used for carrying out on-line parameter adjustment on specific load branches according to the actual vehicle condition, resetting and restarting the fault branches, and executing and forwarding the fault branches by the intelligent control module, and meanwhile, the remote control interface of the remote control end is provided with two modes of independent control or remote control, so that intelligent power distribution management is realized.
In the emergency control process, the control flow is as follows:
when a vehicle enters an emergency, the emergency power-down and the emergency power-up are classified; when an emergency power-on emergency condition occurs, a remote control interface of a remote control end of the wireless control module is used for selecting to enter an emergency power-on state, relevant fault information is shielded, an emergency power-on instruction is sent to the intelligent control module, an electric comprehensive control unit of the intelligent control module issues a forced power-on instruction to a load to be powered on, and forced power-on is carried out to ensure vehicle running and task operation; during an emergency power-down emergency condition, the emergency switch is intervened, an emergency stop signal is sent to the intelligent control module, and the electric comprehensive control unit of the intelligent control module issues a forced power-up instruction to the whole vehicle to carry out whole vehicle emergency power-down.
The intelligent power distribution management system realizes reasonable control of power supply and distribution of the whole vehicle, achieves the functions of high-low voltage power conversion, high-low voltage power distribution and safety protection, realizes reasonable distribution of electric energy, dynamic management and on-line state monitoring of loads, ensures reliable and safe operation of a power grid of the whole vehicle, and provides guarantee for reliable and efficient work of a task system.
(III) beneficial effects
Compared with the prior art, the power distribution management system provided by the invention is subjected to project joint debugging and sample car tests, the test is successful, the intelligent power distribution function of the unmanned vehicle can be met, and verification is carried out on the unmanned vehicle at present.
Drawings
Fig. 1 is a functional block diagram of a module according to the technical scheme of the present invention.
Fig. 2 is a power-on control flow chart of the technical scheme of the invention.
Fig. 3 is a breakpoint control flow chart according to the technical scheme of the present invention.
Fig. 4 is a schematic diagram of a remote control interface of a remote control end according to the technical scheme of the present invention.
Detailed Description
For the purposes of clarity, content, and advantages of the present invention, a detailed description of the embodiments of the present invention will be described in detail below with reference to the drawings and examples.
In order to solve the technical problems, the invention provides an unmanned vehicle redundant intelligent power distribution management system, which comprises: the system comprises a wireless control module, a starting control module, an intelligent control module, a composite power management module and an emergency processing module; the functional block diagram is shown in figure 1.
Wherein, the compound power management module includes: the system comprises a high-voltage lithium battery, a power module, a high-voltage power distribution protection device, a low-voltage lithium battery and a high-voltage safety and power supply composite management unit, wherein the high-voltage lithium battery, the power module, the high-voltage power distribution protection device, the low-voltage lithium battery and the high-voltage safety and power supply composite management unit are used for completing the power supply and the high-voltage and low-voltage conversion functions of an unmanned vehicle;
the low-voltage lithium battery is used for meeting the high-voltage power-on front-end vehicle low-voltage energy output; the power module and the high-voltage lithium battery are used for outputting high-voltage electric energy after receiving a high-voltage power-on instruction, and finishing insulation detection, pre-charging, current loop detection and power-on functions through the high-voltage power distribution protection device; the high-voltage safety and power supply composite management unit is used for realizing the functions of high-voltage and low-voltage conversion of a power grid, grid connection of a low-voltage lithium battery and composite power supply management;
the wireless control module includes: the remote control terminal, the radio station and the switch are used for completing wireless transmission of instructions and transmission of Ethernet; the remote control terminal is provided with a remote control terminal remote control interface, a wireless starting instruction is sent out through the control interface, and the radio station receives the instruction and transmits the instruction to the switch through the Ethernet; the switch transmits the instruction to the intelligent control module through the Ethernet in the unmanned vehicle;
the intelligent control module includes: the chassis control computer and the electric integrated control unit are used for completing the transmission of instructions from the Ethernet to the CAN network in the vehicle and controlling the low-voltage power supply of related loads; the chassis control computer is used for receiving instructions transmitted by the Ethernet and sending the instructions by using the in-vehicle CAN; the electric comprehensive control unit is used for completing the primary distribution function of the power grid and realizing the functions of isolation distribution, intelligent control and safety protection of each load;
the starting control module comprises a switch box, the switch box comprises a high-voltage switch and a low-voltage switch, and a starting instruction executed by the switch box comprises a low-voltage power-on and power-off function and a high-voltage power-on and power-off function;
the emergency processing module comprises an emergency switch and is used for an unmanned vehicle to meet an emergency power-down emergency; the I/O instruction is uploaded through the on-off state of the emergency switch, and the emergency power down of the whole vehicle is realized through the intelligent control module after acquisition.
The high-voltage safety and power supply composite management unit has a redundancy control function, and can remotely shut down a fault power supply component to ensure normal running of a vehicle.
The redundant power distribution is adopted in the electric integrated control unit, namely, a control board and intelligent power module dual-channel redundant configuration mode is adopted for the key load branch, so that the reliability is improved.
The starting control module comprises a redundant channel, a low-voltage load path is arranged in the switch box and is directly connected with the low-voltage lithium battery, on-off is controlled through a switch, and normal power supply of a key load is ensured under the fault condition.
The intelligent power distribution management process of the whole unmanned vehicle CAN be divided into power-on control, power-off control, operation control and emergency control.
Wherein, in the power-on control process, the control flow is as follows:
the starting control module is electrified under low voltage, the low-voltage lithium battery provides low-voltage electric energy, the low-voltage load defaults to electrify all the electrifying branches, self-checking is carried out, the state, self-checking information and alarm information of the node are reported to the chassis management control computer, and the low-voltage electrification is completed;
the high-voltage lithium battery self-checking system comprises a starting control module, a high-voltage power distribution safety protection device, a chassis management control computer, a high-voltage power distribution branch circuit, a high-voltage power distribution control module, a high-voltage lithium battery self-checking system, a high-voltage power distribution control module and a high-voltage power distribution control module, wherein the starting control module is electrified at high voltage, the high-voltage lithium battery self-checking system outputs high-voltage electric energy, the high-voltage power distribution safety protection device performs insulation detection before electrification and reports an insulation state to the chassis management control computer, then performs pre-charging operation of the high-voltage power distribution branch circuit, and after pre-charging is completed, the high-voltage power;
the high-voltage safety power supply composite management unit detects that the high-voltage is input and the high-voltage power supply switch command is turned on, constant-voltage 28V output is started, grid connection of the low-voltage lithium battery is completed, and the whole vehicle is powered on successfully; the control flow is shown in fig. 2.
In the power-off control process, the control flow is as follows:
when the whole vehicle is powered off, the starting control module turns off the high-voltage switch firstly and then turns off the low-voltage switch; turning off a high-voltage switch, confirming that a key load including a high-voltage safety and power supply composite management unit stops working at high voltage by a high-voltage distribution protection device, uploading information to a chassis management computer, issuing a power-off command of a high-voltage lithium battery and a power module by the chassis management computer of an intelligent control module, reporting a signal that a positive electrode contactor is turned off to the chassis management computer by the high-voltage lithium battery, discharging residual high-voltage charges on a power grid by the high-voltage distribution protection device through a discharge resistor, and then turning off output; turning off the low-voltage switch, stopping outputting the low-voltage lithium battery, and powering down the whole vehicle successfully; the control flow is shown in fig. 3.
In the operation control process, the control flow is as follows:
the running state and the load demand of the whole vehicle are monitored through a chassis control computer, related instructions sent by a wireless control module are monitored on line, and the on-off control and the safety protection of a power distribution branch are carried out by an electric comprehensive control unit; and a remote control interface of a remote control end is established in the wireless control module, and the interface is shown in figure 4. The remote control interface of the remote control end is used for carrying out on-line parameter adjustment on a specific load branch according to the actual vehicle condition, resetting and restarting a fault branch, and executing and forwarding by the intelligent control module, and meanwhile, the remote control interface of the remote control end is set to be capable of selecting two modes of autonomous control or remote control, so that intelligent power distribution management is realized.
In the emergency control process, the control flow is as follows:
when a vehicle enters an emergency, the emergency power-down and the emergency power-up are classified; when an emergency power-on emergency condition occurs, a remote control interface of a remote control end of the wireless control module is used for selecting to enter an emergency power-on state, relevant fault information (except short-circuit protection) is shielded, an emergency power-on instruction is sent to the intelligent control module, an electric comprehensive control unit of the intelligent control module is used for sending a strong power-on instruction to a load to be powered on, and the strong power-on is performed to ensure the running and task operation of a vehicle; during an emergency power-down emergency condition, the emergency switch is intervened, an emergency stop signal is sent to the intelligent control module, and the electric comprehensive control unit of the intelligent control module issues a forced power-up instruction to the whole vehicle to carry out whole vehicle emergency power-down.
The intelligent power distribution management system realizes reasonable control of power supply and distribution of the whole vehicle, achieves the functions of high-low voltage power conversion, high-low voltage power distribution and safety protection, realizes reasonable distribution of electric energy, dynamic management and on-line state monitoring of loads, ensures reliable and safe operation of a power grid of the whole vehicle, and provides guarantee for reliable and efficient work of a task system.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (5)
1. Redundant intelligent power distribution management system of unmanned vehicles, its characterized in that, intelligent power distribution management system includes: the system comprises a wireless control module, a starting control module, an intelligent control module, a composite power management module and an emergency processing module;
wherein, the compound power management module includes: the system comprises a high-voltage lithium battery, a power module, a high-voltage power distribution protection device, a low-voltage lithium battery and a high-voltage safety and power supply composite management unit, wherein the high-voltage lithium battery, the power module, the high-voltage power distribution protection device, the low-voltage lithium battery and the high-voltage safety and power supply composite management unit are used for completing the power supply and the high-voltage and low-voltage conversion functions of an unmanned vehicle;
the low-voltage lithium battery is used for meeting the high-voltage power-on front-end vehicle low-voltage energy output; the power module and the high-voltage lithium battery are used for outputting high-voltage electric energy after receiving a high-voltage power-on instruction, and finishing insulation detection, pre-charging, current loop detection and power-on functions through the high-voltage power distribution protection device; the high-voltage safety and power supply composite management unit is used for realizing the functions of high-voltage and low-voltage conversion of a power grid, grid connection of a low-voltage lithium battery and composite power supply management;
the wireless control module includes: the remote control terminal, the radio station and the switch are used for completing wireless transmission of instructions and transmission of Ethernet; the remote control terminal is provided with a remote control terminal remote control interface, a wireless starting instruction is sent out through the control interface, and the radio station receives the instruction and transmits the instruction to the switch through the Ethernet; the switch transmits the instruction to the intelligent control module through the Ethernet in the unmanned vehicle;
the intelligent control module includes: the chassis control computer and the electric integrated control unit are used for completing the transmission of instructions from the Ethernet to the CAN network in the vehicle and controlling the low-voltage power supply of related loads; the chassis control computer is used for receiving instructions transmitted by the Ethernet and sending the instructions by using the in-vehicle CAN; the electric comprehensive control unit is used for completing the primary distribution function of the power grid and realizing the functions of isolation distribution, intelligent control and safety protection of each load;
the starting control module comprises a switch box, the switch box comprises a high-voltage switch and a low-voltage switch, and a starting instruction executed by the switch box comprises a low-voltage power-on and power-off function and a high-voltage power-on and power-off function;
the emergency processing module comprises an emergency switch and is used for an unmanned vehicle to meet an emergency power-down emergency; uploading an I/O instruction through the on-off state of the emergency switch, and realizing emergency power down of the whole vehicle through the intelligent control module after acquisition;
the high-voltage safety and power supply composite management unit has a redundancy control function, and can realize remote shutdown of a fault power supply component to ensure normal running of a vehicle;
redundant power distribution is adopted in the electric integrated control unit, namely, a mode of dual-channel redundant configuration of a control board and an intelligent power module is adopted for a key load branch, so that the reliability is improved;
the starting control module comprises a redundant channel, a low-voltage load path is arranged in the switch box and is directly connected with the low-voltage lithium battery, the on-off is controlled through a switch, and the normal power supply of a key load is ensured under the fault condition;
the whole unmanned vehicle realizes information transmission through wireless instructions, ethernet and CAN network, the running state and the load working state of the whole unmanned vehicle are collected and judged by a chassis management computer, and the intelligent power distribution management process of the whole unmanned vehicle CAN be divided into power-on control, power-off control, operation control and emergency control;
in the power-on control process, the control flow is as follows:
the starting control module is electrified under low voltage, the low-voltage lithium battery provides low-voltage electric energy, the low-voltage load defaults to electrify all the electrifying branches, self-checking is carried out, the state, self-checking information and alarm information of the node are reported to the chassis management control computer, and the low-voltage electrification is completed;
the high-voltage lithium battery self-checking system comprises a starting control module, a high-voltage power distribution safety protection device, a chassis management control computer, a high-voltage power distribution branch circuit, a high-voltage power distribution control module, a high-voltage lithium battery self-checking system, a high-voltage power distribution control module and a high-voltage power distribution control module, wherein the starting control module is electrified at high voltage, the high-voltage lithium battery self-checking system outputs high-voltage electric energy, the high-voltage power distribution safety protection device performs insulation detection before electrification and reports an insulation state to the chassis management control computer, then performs pre-charging operation of the high-voltage power distribution branch circuit, and after pre-charging is completed, the high-voltage power;
the high-voltage safety power supply composite management unit detects that the high-voltage is input and the high-voltage power supply switch command is turned on, constant-voltage 28V output is started, grid connection of the low-voltage lithium battery is completed, and the whole vehicle is powered on successfully.
2. The unmanned vehicle redundant intelligent power distribution management system of claim 1, wherein during the power outage control process, the control flow is as follows:
when the whole vehicle is powered off, the starting control module turns off the high-voltage switch firstly and then turns off the low-voltage switch; turning off a high-voltage switch, confirming that a key load including a high-voltage safety and power supply composite management unit stops working at high voltage by a high-voltage distribution protection device, uploading information to a chassis management computer, issuing a power-off command of a high-voltage lithium battery and a power module by the chassis management computer of an intelligent control module, reporting a signal that a positive electrode contactor is turned off to the chassis management computer by the high-voltage lithium battery, discharging residual high-voltage charges on a power grid by the high-voltage distribution protection device through a discharge resistor, and then turning off output; and the low-voltage switch is turned off, the low-voltage lithium battery stops outputting, and the whole vehicle is powered down successfully.
3. The unmanned vehicle redundant intelligent power distribution management system of claim 1, wherein during the operation control process, the control flow is as follows:
the running state and the load demand of the whole vehicle are monitored through a chassis control computer, related instructions sent by a wireless control module are monitored on line, and the on-off control and the safety protection of a power distribution branch are carried out by an electric comprehensive control unit; and a remote control interface of a remote control end is established at the wireless control module, the remote control interface of the remote control end is used for carrying out on-line parameter adjustment on the load branch according to the actual vehicle condition, resetting and restarting the fault branch, and executing and forwarding by the intelligent control module, and meanwhile, the remote control interface of the remote control end is provided with two modes of independent control or remote control, so that intelligent power distribution management is realized.
4. The unmanned vehicle redundant intelligent power distribution management system of claim 1, wherein during the emergency control process, the control flow is as follows:
when a vehicle enters an emergency, the emergency power-down and the emergency power-up are classified; when an emergency power-on emergency condition occurs, a remote control interface of a remote control end of the wireless control module is used for selecting to enter an emergency power-on state, relevant fault information is shielded, an emergency power-on instruction is sent to the intelligent control module, an electric comprehensive control unit of the intelligent control module issues a forced power-on instruction to a load to be powered on, and forced power-on is carried out to ensure vehicle running and task operation; during an emergency power-down emergency condition, the emergency switch is intervened, an emergency stop signal is sent to the intelligent control module, and the electric comprehensive control unit of the intelligent control module issues a forced power-up instruction to the whole vehicle to carry out whole vehicle emergency power-down.
5. The unmanned vehicle redundant intelligent power distribution management system according to claim 1, wherein the intelligent power distribution management system realizes reasonable control of power supply and distribution of the whole vehicle, completes the functions of high-low voltage power conversion, high-low voltage power distribution and safety protection, realizes reasonable distribution of electric energy, dynamic management and on-line monitoring of load, ensures reliable and safe operation of the whole vehicle power grid, and provides guarantee for reliable and efficient operation of a task system.
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Citations (8)
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| WO2016130104A1 (en) * | 2015-02-09 | 2016-08-18 | Hewlett Packard Enterprise Development Lp | Redundant power extender |
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