WO2021012473A1 - 一种电动航食车 - Google Patents

一种电动航食车 Download PDF

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Publication number
WO2021012473A1
WO2021012473A1 PCT/CN2019/116209 CN2019116209W WO2021012473A1 WO 2021012473 A1 WO2021012473 A1 WO 2021012473A1 CN 2019116209 W CN2019116209 W CN 2019116209W WO 2021012473 A1 WO2021012473 A1 WO 2021012473A1
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Prior art keywords
vehicle
electric
switch
mode
voltage
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PCT/CN2019/116209
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English (en)
French (fr)
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单萍
马列
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江苏天一机场专用设备股份有限公司
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Publication of WO2021012473A1 publication Critical patent/WO2021012473A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/20—Refrigerated goods vehicles
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
    • B64F1/00—Ground or aircraft-carrier-deck installations
    • B64F1/32—Ground or aircraft-carrier-deck installations for handling freight
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the invention belongs to the field of electric vehicles, and specifically relates to an electric catering vehicle.
  • Aviation food truck is the abbreviation of aviation food truck, which is used in airports to realize aircraft food supply.
  • Aviation food truck and aviation food truck express the same concept.
  • the electric catering vehicle of the present invention is designed and achieves an energy-saving, emission-reducing, and efficient operation mode.
  • the top-mounted refrigeration system of the present invention has two power supply modes, which respectively supply power to the vehicle power supply and the external power supply.
  • the vehicle When the vehicle is in a charging state, the vehicle is powered off under high voltage, and the air-conditioning compressor uses an external power supply to directly supply power to keep the temperature of the refrigerated compartment constant; when the vehicle is charged or the vehicle is in a driving state, the vehicle power supply mode is used, Ensure the temperature of the refrigerated compartment.
  • the bodywork system includes action mode at high pressure, action mode at low pressure and manual mode to ensure the safety of bodywork control.
  • the high-voltage circuit is cut off, the low-voltage action mode can be used to operate, and the manual mode can be used when the low-voltage is not available, ensuring that the vehicle bodywork system can always operate normally.
  • the whole vehicle of the present invention adopts three CAN channels to form the key communication network of the electric aviation food truck, and is equipped with different transmission rates, so that the bodywork control system can obtain information about the running status of the vehicle more efficiently, and the information interaction between gateways is more efficient. Fast.
  • the Internet of Things monitoring platform is composed of a three-level platform including an airport full supervision platform, a vehicle operation enterprise platform, and a vehicle production enterprise platform.
  • the three-level platforms complement and coordinate with each other, forming the dynamic data interaction system of the airport's food truck.
  • Figure 1 is a schematic diagram of the overall structure of the electric catering vehicle of the present invention.
  • Figure 2 is a schematic diagram of the overall system framework of the electric catering vehicle of the present invention.
  • Figure 3 is a schematic diagram of the structure of the all-in-one integrated controller of the present invention.
  • Figure 4 is a structural diagram of the lifter of the present invention.
  • Figure 5 is a CAN network topology diagram of the present invention.
  • Figure 6 is a block diagram of the composition of the Internet of Things monitoring platform of the present invention.
  • the switches and buttons of the present invention are not limited to traditional mechanical switches and buttons, and they also include operation buttons on the display screen.
  • FIG 1-2 is a schematic diagram of the overall structure and framework of the electric catering vehicle of the present invention, which includes the vehicle control system, power system, power supply system, high voltage system, chassis system 1, electronic control system, bodywork system, charging and replacement system and monitoring system;
  • the power system includes a motor driver, a motor, and a motor control system; the motor uses a permanent magnet synchronous motor, and uses a direct-drive transmission mode of the motor, so that the motor directly transmits power to the rear axle to drive the vehicle, reducing the intermediate transmission The existence of this improves the transmission efficiency and increases the space structure of the vehicle.
  • the power supply system includes a power battery pack, a quick release handle and a quick-change electric suction cup; when the quick-release handle is used, it is a quick charge mode, and when the quick release handle is removed and replaced with a quick-change electric suction cup, it is switched to the quick change mode, realizing the vehicle
  • the integration of charging and replacement improves the efficiency of vehicle operation.
  • the high-voltage system adopts an all-in-one integrated control device for control;
  • Figure 3 shows the structure of the all-in-one integrated controller;
  • the all-in-one integrated control device is responsible for the conversion of the vehicle's high-voltage system power supply and the drive motor controller , DC-AC steering oil pump, DC-DC, DC-AC air pump power conversion, air conditioning, DC-AC top mounted oil pump, PTC defrost, high-voltage power distribution of top mounted air conditioner, and connection of power batteries and batteries.
  • the all-in-one integrated control device saves a lot of controller space structure, improves the convenience of maintenance, is suitable for high-power driving, and improves compatibility.
  • the all-in-one integrated controller is installed at a relatively rearward position between the two front wheels of the vehicle body, and has a compact structure and is convenient for wiring of the entire vehicle.
  • the chassis system 1 includes: a braking system, a steering system, a cooling system, and a cab air conditioning system;
  • the bodywork system includes a bodywork component 2, a lifter 3, a leg 4, a bodywork refrigeration system, a bodywork oil pump motor assembly, and a bodywork controller; the bodywork component includes a refrigerating compartment; the chassis and bodywork components are lifted
  • the upper-mounted refrigeration system controls the temperature of the refrigerated compartment; the upper-mounted oil pump motor assembly controls the hydraulic cylinder 5 of the lifter.
  • Figure 4 is a structural diagram of the lifter of the present invention.
  • the charging and swapping system includes a charging system and a swapping system.
  • the charging and swapping system includes a quick charging mode and a quick swapping mode; the charging system realizes intelligent power distribution, and the intelligent power distribution is interacted by the battery management system with the external charging system through the CAN line and transmits the power information required by the entire vehicle;
  • the battery management system always maintains the peak charging efficiency at a stable value; after the battery management system communicates with the external charging system, the charging process is constantly monitored to realize when the DC voltage output by the external charging system exceeds the voltage limit setting value , Automatically limit the increase of the DC voltage output by the external charging system, and convert to constant voltage charging operation. When the output DC current of the external charging system exceeds the current limit setting value, it immediately enters the current limit state.
  • the top-mounted refrigeration system includes an air conditioner, and the air-conditioning compressor of the air conditioner can accept two power supply modes, which are power supply for on-board power supply and external power supply.
  • the vehicle control system transmits the high-voltage power-off command to the battery management system and the upper-mounted refrigeration system.
  • the high-voltage circuit host electrical appliances are disconnected, and the vehicle is powered off under high voltage.
  • the air-conditioning compressor uses an external power supply.
  • the power supply realizes that the temperature of the refrigerated compartment is kept constant; when the vehicle is charged or the vehicle is in a running state, the vehicle controller will transmit the power-on instruction to the battery management system, and the battery management system will use part of the high-voltage power The whole vehicle is driven, and the other part is used for the work of the air-conditioning compressor, so that the temperature of the refrigerating compartment can be kept constant.
  • the external power source includes but is not limited to airport power source or household power source.
  • the bodywork system includes action mode at high pressure, action mode at low pressure and manual mode, which ensures the safety of bodywork control.
  • action mode at low voltage can be used.
  • Manual operation can be adopted when the low voltage is not available. Mode operation ensures that the vehicle bodywork system can always operate normally. specifically:
  • the refrigerated body can be effectively started to rise or fall; the conditions for the vehicle to be in the parking state are that the parking brake is working, the parking gear is in the parking position, and the driving motor speed is zero.
  • the bodywork system has a high-pressure action mode: the power battery drives the bodywork oil pump motor, and controls the bodywork oil pump to realize the raising and lowering of the car body, the retracting and lowering of the outriggers, and the forwarding and retracting of the platform.
  • the bodywork system has a low-voltage action mode: after the catering vehicle has finished serving the aircraft, if the normal working mode cannot work, and the vehicle cannot be evacuated from the work site, the low-voltage action mode is adopted.
  • the on-board battery drives the electric
  • the emergency pump realizes the retraction of the platform, the lowering of the car body and the retraction of the outrigger.
  • the bodywork system has a manual mode: after serving the aircraft, the catering vehicle cannot work in the normal working mode and the electric emergency mode, and the vehicle cannot be evacuated from the work site in manual mode.
  • the staff can shake Manual emergency pump to lower the car body and retract the outriggers.
  • the first up switch and the second up switch are the same switch; the first down switch and the second down switch are the same switch; the action mode at high voltage and the action mode at low voltage are performed through a high and low voltage electric switch Switch;
  • the first up switch, the second up switch and the third up switch are the same switch; the first down switch, the second down switch and the third down switch are the same switch; through the high and low voltage electrical switch Switch between the action mode at high pressure and the action mode at low pressure; the operation difference between manual mode and high and low pressure mode when realizing the same operation content is that the manual mode is a long-press switch, and the high and low pressure mode is that you press the switch once and release it. Work content can be realized automatically.
  • the power system adopts the direct drive of the motor.
  • the main circuit relay is first closed. After the main circuit relay is closed, the motor control system supplies power to the motor. The circuit is turned on and the whole vehicle is in a high-voltage state. The motor runs according to the driver's request to directly send the power to the rear axle and to the wheels, realizing the driving of the catering vehicle.
  • an emergency stop device is also provided. After the emergency stop switch is pressed, the entire vehicle will disconnect the high-voltage electric driving circuit, forcing the vehicle to stop in an emergency.
  • the CAN network of the present invention includes a power CAN network, a comprehensive information CAN network, and a power battery CAN network; the power CAN network and the motor controller, the anti-lock braking system, the automatic locking anti-skid differential, and The communication interface connection is used to realize driving control; the comprehensive information CAN network is used to communicate with the hoist, refrigeration system, on-board instrumentation, air conditioning, battery management system and remote terminals; the power battery CAN network is used to realize Communication between the battery management system and the off-board external charging device; the transmission rate of the power CAN network>the transmission rate of the integrated information CAN network ⁇ the transmission rate of the power battery CAN network.
  • the vehicle of the present invention uses three CAN channels to form the key communication network of the electric aviation food vehicle, which is used to undertake the communication of the power system, body information, and charging system; the vehicle controller mainly realizes the management of the vehicle communication data and the communication between different systems. To ensure the safe and reliable operation of the vehicle and improve the driving comfort of the vehicle, it can realize the functions of torque analysis, fault diagnosis, and high-voltage energy management.
  • the IoT monitoring platform of the monitoring system is composed of a three-level platform of an airport full supervision platform, a vehicle operation enterprise platform, and a vehicle production enterprise platform.
  • the airport safety supervision platform is responsible for overall supervision, collecting and analyzing all the data, and then overall command and dispatch to ensure the normal operation of the aircraft.
  • the vehicle operating enterprise platform is responsible for receiving vehicle operating data and monitoring vehicle operating status in real time.
  • the vehicle production enterprise platform is responsible for receiving various operating data reported by the vehicle and grasping the vehicle's movement status.
  • the three-level platforms complement and coordinate with each other, forming the dynamic data interaction system of the airport's food truck.
  • the vehicle self-monitoring system of the monitoring system includes a vehicle-mounted terminal and a video monitoring alarm device. Realize real-time monitoring to ensure the integrity of the food in the catering vehicle and the safety of operation.
  • the vehicle-mounted terminal collects regular vehicle operating data through OBD or TBOX to monitor the driving status of the vehicle, and also captures the working status of the top-mounted refrigeration system, the temperature of each point of the refrigerated compartment, and the top-mounted refrigeration system in real time through the device interface.
  • the abnormal alarm information of the system realizes the real-time acquisition of cargo compartment cold chain data.
  • the video monitoring and alarm device collects the driver's facial features, eye signals, and head mobility and transmits them to the vehicle controller, which determines whether the driver's behavior is abnormal.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Transportation (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Power Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
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Abstract

一种电动航食车，上装冷藏系统具有两种供电方式，分别为车载电源供电和外接电源供电。当整车处于充电状态下，整车高压下电，所述空调压缩机借助外接电源直接供电实现继续保持冷藏厢体的温度恒定；当车辆充电结束或车辆处于行驶状态时为车载电源供电方式，保证冷藏厢体温度。上装系统包含高压时动作模式，低压时动作模式和手动模式，整车采用三路CAN通道组成电动航空食品车的关键通讯网络，并配以不同的传输速率，实现了网关之间的信息交互更加快捷。设置物联网监控平台由机场全监管平台、车辆运营企业平台和车辆生产企业平台三级平台组成。

Description

一种电动航食车 技术领域
本发明属于电动汽车领域，具体涉及一种电动航食车。
背景技术
航食车是航空食品车简称，以应用在机场的实现飞机食品补给，航食车和航空食品车表达同一概念。
传统内燃机航食车不能响应国家关于发展绿色交通产业的号召，无法推动绿色智能机场设备的发展。
发明内容
为实现机场进一步的节能减排，设计了本发明的电动航食车，并做到了节能，减排，高效的运行模式。
本发明上装冷藏系统具有两种供电方式，分别为车载电源供电和外接电源供电。当整车处于充电状态下，整车高压下电，所述空调压缩机借助外接电源直接供电实现继续保持冷藏厢体的温度恒定；当车辆充电结束或车辆处于行驶状态时为车载电源供电方式，保证冷藏厢体温度。
上装系统包含高压时动作模式，低压时动作模式和手动模式，保证了上装控制的安全性。在高压电路切断时可以采用低压时动作模式操作，在低压也不具备的情况下可以采用手动模式进行操作，保证了车辆上装系统始终可以正常作业。
本发明整车采用三路CAN通道组成电动航空食品车的关键通讯网络，并配以不同的传输速率，实现上装控制系统获取整车运行状态信息更加高效，并实现了网关之间的信息交互更加快捷。
本发明设置物联网监控平台由机场全监管平台、车辆运营企业平台和车辆生产企业平台三级平台组成。三级平台相互补充、相互协调，构成了机场航食车的动态数据交互体系。
附图说明
图1为本发明电动航食车整体结构示意图；
图2为本发明电动航食车整体系统框架示意图；
图3为本发明多合一集成控制器结构示意图；
图4为本发明起升器结构图；
图5为本发明CAN网络拓扑图；
图6为本发明物联网监控平台组成框图；
具体实施方式
本发明的开关和按钮不限于传统的机械开关和按钮，其也包含显示屏幕中的操作按键。
图1-2为本发明电动航食车整体结构和框架示意图，其包含整车控制系统，动力系统，电源系统，高压系统，底盘系统1，电控系统，上装系统，充换电系统和监控系统；
所述动力系统包括电机驱动器，电机和电机控制系统；所述电机选用永磁同步电机，并运用电机直驱的传动方式，使电机直接将动力输送到后桥从而驱动车辆行驶，减少了中间变速器的存在，提高了传动效率，增加了整车空间结构。
所述电源系统包括动力电池组、快速解脱手柄和快换电吸盘；使用快速解脱手柄时为快充模式，当去掉快速解脱手柄并更换为快换电吸盘时转换为快换模式，实现了车辆的充换电一体化，提高了车辆运行效率。
所述高压系统采用多合一集成控制装置进行控制；图3示出了所述多合一集成控制器结构示意；所述多合一集成控制装置负责整车高压系统电源转换、驱动电机控制器、DC-AC转向油泵、DC-DC、DC-AC气泵的电源转换、空调、DC-AC上装油泵、PTC除霜、上装空调的高压配电以及连接动力电池和蓄电池。所述多合一集成控制装置相对于多控制装置分散布置节省了大量的控制器空间结构，提高了维护的便利性，同时适合大功率驱动，提高了兼容性能。所述多合一集成控制器安装在车身地盘两个前轮之间相对靠后位置，结构紧凑，便于整车布线。
所述底盘系统1包括：制动系统，转向系统，冷却系统，驾驶室空调系统；
所述上装系统包括上装部件2、起升器3、支腿4、上装冷藏系统、上装油泵电机总成和上装控制器；所述上装部件包括冷藏厢体；所述底盘与上装部件通过起升器相连接；所述上装冷藏系统控制所述冷藏厢体温度；上装油泵电机总成控制起升器的液压缸5。图4为本发明起升器结构图。
所述充换电系统包括充电系统和换电系统。充换电系统包括快充模式和快换模式；所述充电系统实现智能功率分配，所述智能功率分配由电池管理系统通过CAN线与外界充电系统进行交互并传递整车所需要的电量信息；所述电池管理系统将充电峰值效率始终维持在稳定值；所述电池管理系统与所述外界充电系统通 讯后时刻监控充电过程，实现当所述外界充电系统输出的直流电压超过限压整定值时，自动限制所述外界充电系统输出的直流电压的增加，并转换为恒压充电运行，当所述外界充电系统输出直流电流超过限流整定值时，立即进入限流状态。
其中所述上装冷藏系统包括空调，所述空调的空调压缩机可接受两种供电方式，分别为车载电源供电和外接电源供电。当整车处于充电状态下，整车控制系统将高压下电指令传送至电池管理系统及上装冷藏系统，此时高压回路主机电器断开，整车高压下电，所述空调压缩机借助外接电源供电实现继续保持所述冷藏厢体的温度恒定；当车辆充电结束或车辆处于行驶状态时，整车控制器将上电指令传至电池管理系统，此时电池管理系统会将高压电一部分用做整车驱动，另一部分供所述空调压缩机工作，实现继续保持所述冷藏厢体的温度恒定。所述外界电源包括但不限于机场电源或者家用电源。
所述上装系统包含高压时动作模式，低压时动作模式和手动模式，保证了上装控制的安全性在高压电路切断时可以采用低压时的动作模式操作，在低压也不具备的情况下可以采用手动模式进行操作，保证了车辆上装系统始终可以正常作业。具体地：
当整车控制器判断车辆处于驻车状态时，才能有效启动冷藏厢体上升或下降；满足车辆处于驻车状态的条件是驻车制动器工作、处于驻车挡位以及驱动电机转速为零。
所述上装系统具有高压时动作模式：动力电池驱动上装油泵电机，控制上装油泵实现厢体上升和厢体下降、支腿收回和放下、平台前伸和缩回。
所述上装系统具有低压时动作模式：航食车在为飞机服务完毕后，如果正常工作模式无法工作，车辆不能撤离工作现场时采取低压时动作模式，在低压时动作模式下，车载蓄电池驱动电动应急泵，实现平台缩回、厢体下降和支腿的收回。
所述上装系统具有手动模式：航食车在为飞机服务完毕后，如果正常工作模式和电动应急模式都无法工作，车辆不能撤离工作现场时采取手动模式，在手动模式下，工作人员可通过摇动手动应急泵，使厢体下降和支腿收回。
优选地，所述第一上升开关和第二上升开关是同一个开关；所述第一下降开关和第二下降开关是同一个开关；通过高低压电开关进行高压时动作模式和低压时动作模式的切换；
优选地，所述第一上升开关、第二上升开关和第三上升开关是同一个开关； 所述第一下降开关、第二下降开关和第三下降开关是同一个开关；通过高低压电开关进行高压时动作模式和低压时动作模式的切换；手动模式与高、低压模式在实现同一个操作内容时的操作区别为手动模式为长按开关，高、低压模式为按下一次开关松开即可自动实现工作内容。
所述动力系统采用电机直驱，当电池管理系统接收到整车控制器的工作指令后首先闭合主回路继电器，所述主回路继电器闭合后，电机控制系统向电机供电，此时高压电行车回路导通，整车处于上高压电状态，电机根据驾驶员的要求运转将动力直接送至后桥并传送至车轮，实现航食车行驶。
为防止航食车在行驶中发生危险事故，还设有急停装置，急停开关按下后，整车将断开所述高压电行车回路，迫使车辆紧急停车。
如图5所示，本发明的CAN网络包括动力CAN网络、综合信息CAN网络以及动力电池CAN网络；所述动力CAN网络与电机控制器，制动防抱死系统，自动锁定防滑差速器以及通信接口连接，用于实现行车控制；所述综合信息CAN网络用于与起升器、制冷系统、车上仪表、空调、电池管理系统及远程终端进行通信；所述动力电池CAN网络用于实现电池管理系统与非车载的外部充电装置之间的通信；所述动力CAN网络的传输速率>综合信息CAN网络的传输速率≥动力电池CAN网络的传输速率。
本发明整车采用三路CAN通道组成电动航空食品车的关键通讯网络，分别用于承担动力系统、车身信息以及充电系统的通信；整车控制器主要实现管理整车通讯数据、不同系统之间的协调、确保整车安全可靠运行以及提升整车驾驶舒适性，可实现扭矩解析、故障诊断、高压能量管理的功能。
如图6所示，所述监控系统的所述物联网监控平台由机场全监管平台、车辆运营企业平台和车辆生产企业平台三级平台组成。其中机场安全监管平台负责总体监管，将所有数据汇总，并对其进行分析，再总体做指挥调度，确保飞机正常运营。车辆运营企业平台负责接收车辆运行数据，实时监管车辆运行状态。车辆生产企业平台负责接收车辆上报的各类运行数据，掌握车辆运动状态。三级平台相互补充、相互协调，构成了机场航食车的动态数据交互体系。
所述监控系统的所述整车自身监控系统包括车载终端和视频监控报警装置。实现实时监控来确保航食车内食物的完好性和运行的安全性。其中所述车载终端通过OBD或TBOX采集车辆常规运行数据，用以监控车辆行驶状态，还通过设备接 口实时捕捉所述上装冷藏系统的工作状态、所述冷藏车厢各点位温度、所述上装冷藏系统的异常报警信息，实现货厢冷链数据的实时获取。所述视频监控报警装置采集驾驶员的面部特征，眼部信号，头部运动性并传送至整车控制器，所述整车控制器判断驾驶员行为是否异常。

Claims (14)

  1. 一种电动航食车，其包含整车控制系统，动力系统，电源系统，电池管理系统，上装系统，充换电系统和监控系统；
    所述上装系统包括上装部件、起升器、支腿、上装冷藏系统、上装油泵电机总成和上装控制器；
    所述上装部件包括冷藏厢体；
    所述底盘与上装部件通过起升器相连接；所述上装油泵电机总成控制起升器的液压缸；
    所述上装冷藏系统包括空调，所述空调具有两种供电方式，分别为车载电源供电和外接电源供电；当整车处于充电状态下，整车高压下电，所述空调借助外接电源供电实现保持所述冷藏厢体的温度恒定；当车辆充电结束或车辆处于行驶状态时，电源系统的高压电一部分用做整车驱动，另一部分供所述空调工作，实现保持所述冷藏厢体的温度恒定。
  2. 如权利要求1所述的电动航食车，其特征在于：当整车控制器判断车辆处于驻车状态时，才能有效启动冷藏厢体上升或下降；满足车辆处于驻车状态的条件是驻车制动器工作、处于驻车挡位以及驱动电机转速为零。
  3. 如权利要求1所述的电动航食车，其特征在于：所述上装系统具有高压时动作模式：动力电池驱动上装油泵电机，控制上装油泵实现厢体上升和厢体下降、支腿收回和放下、平台前伸和缩回。
  4. 如权利要求3所述的电动航食车，其特征在于：所述上装系统具有低压时动作模式：航食车在为飞机服务完毕后，如果正常工作模式无法工作，车辆不能撤离工作现场时采取低压时动作模式，在低压时动作模式下，车载蓄电池驱动电动应急泵，实现平台缩回、厢体下降和支腿的收回。
  5. 如权利要求4所述的电动航食车，其特征在于：所述上装系统具有手动模式：航食车在为飞机服务完毕后，如果正常工作模式和电动应急模式都无法工作，车辆不能撤离工作现场时采取手动模式，在手动模式下，工作人员可通过摇动手 动应急泵，使厢体下降和支腿收回。
  6. 如权利要求1至5任一项所述的电动航食车，其特征在于：CAN网络包括动力CAN网络、综合信息CAN网络以及动力电池CAN网络；所述动力CAN网络与电机控制器，制动防抱死系统，自动锁定防滑差速器以及通信接口连接，用于实现行车控制；
    所述综合信息CAN网络用于与起升器、制冷系统、车上仪表、空调、电池管理系统及远程终端进行通信；
    所述动力电池CAN网络用于实现电池管理系统与非车载的外部充电装置之间的通信。
  7. 如权利要求6所述的电动航食车，其特征在于：所述动力CAN网络的传输速率>综合信息CAN网络的传输速率≥动力电池CAN网络的传输速率。
  8. 如权利要求1至5任一项所述的电动航食车，其特征在于：还包括物联网监控平台，由机场全监管平台、车辆运营企业平台和车辆生产企业平台三级平台组成；
    其中机场安全监管平台负责总体监管，将所有数据汇总，并对其进行分析，再总体做指挥调度，确保飞机正常运营；
    车辆运营企业平台负责接收车辆运行数据，实时监管车辆运行状态；
    车辆生产企业平台负责接收车辆上报的各类运行数据，掌握车辆运动状态；三级平台相互补充、相互协调，构成了机场航食车的动态数据交互体系。
  9. 如权利要求1至5任一项所述的电动航食车，其特征在于：还包括整车自身监控系统，包括车载终端和视频监控报警装置。
  10. 如权利要求1至5任一项所述的电动航食车，其特征在于：所述电源系统包括动力电池组、快速解脱手柄和快换电吸盘；使用快速解脱手柄时为快充模式，当去掉快速解脱手柄并更换为快换电吸盘时转换为快换模式。
  11. 如权利要求1至5任一项所述的电动航食车，其特征在于：还包含多合一 集成控制装置，所述多合一集成控制装置集成了油泵辅助电机控制器、气泵辅助电机控制器、上装空调控制器、空调控制器、上装油泵控制器、PTC控制器、DC-DC模块；还包括分别用于与驱动电机、动力电池以及蓄电池连接的接口。
  12. 如权利要求1至5任一项所述的电动航食车，其特征在于：所述电池管理系统将充电峰值效率始终维持在稳定值；所述电池管理系统与所述外界充电系统通讯后时刻监控充电过程，实现当所述外界充电系统输出的直流电压超过限压整定值时，自动限制所述外界充电系统输出的直流电压的增加，并转换为恒压充电运行，当所述外界充电系统输出直流电流超过限流整定值时，立即进入限流状态。
  13. 如权利要求4所述的电动航食车，其特征在于：所述第一上升开关和第二上升开关是同一个开关；所述第一下降开关和第二下降开关是同一个开关；通过高低压电开关进行高压时动作模式和低压时动作模式的切换。
  14. 如权利要求5所述的电动航食车，其特征在于：所述第一上升开关、第二上升开关和第三上升开关是同一个开关；所述第一下降开关、第二下降开关和第三下降开关是同一个开关；通过高低压电开关进行高压时动作模式和低压时动作模式的切换；手动模式与高、低压模式在实现同一个操作内容时的操作区别为手动模式为长按开关，高、低压模式为按下一次开关松开即可。
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