Field test device for diesel range extender of military unmanned vehicle

Abstract

The invention discloses a field test device for a diesel range extender of a military unmanned vehicle. The field test device comprises an air inlet, air outlet, cooling and fuel supply system, a power battery, a low-voltage power supply, a data acquisition system, a bus data transceiving device and an upper computer which are fixed on a fixed bracket, the fixed bracket is connected with the range extender mounting rack; the air inlet, exhaust, cooling and fuel oil supply system is connected with an air inlet end and an exhaust end of the range extender engine, an engine and generator pipeline and an engine oil pipe respectively; the power battery and the low-voltage power supply respectively provide high voltage for the engine and low voltage for the control system; the air inlet, exhaust and cooling system and the power battery are respectively provided with a sensor, and data acquired by the sensors are transmitted to the data acquisition system and transmitted to the upper computer through the bus data receiving and transmitting device and used for fault positioning or function verification and instruction issuing to the control system. According to the invention, when the diesel range extender of the military unmanned vehicle breaks down in the field, fault positioning and function verification before falling of the military unmanned vehicle after a pod is carried out are realized.

Description

Technical Field

[0001] This invention relates to the field of vehicle engineering technology, specifically to a field test device for a diesel range extender for military unmanned vehicles. Background Technology

[0002] Existing military unmanned vehicles all use power batteries as the primary power source and diesel range extenders as a supplementary power source. When a military unmanned vehicle is performing field testing missions and the diesel range extender malfunctions, it cannot supply power to the vehicle's power battery. If the remaining charge of the vehicle's power battery is insufficient to support the return trip, the vehicle will break down in the field. Therefore, it is necessary to repair the diesel range extender in the field using a pod. However, after pod installation, the diesel range extender is separated from the vehicle's power battery, control system, fuel supply system, and intake and exhaust systems, making it unsuitable for testing and inspection. Summary of the Invention

[0003] In view of this, the present invention provides a field test device for a military unmanned vehicle diesel range extender, which solves the problem of locating the fault and verifying the function before landing the diesel range extender of a military unmanned vehicle after it malfunctions in the field.

[0004] The technical solution adopted in this invention is as follows:

[0005] A field test device for a diesel range extender for a military unmanned vehicle includes an intake system, an exhaust system, a cooling system, a fuel supply system, a power battery and a low-voltage power supply, as well as a data acquisition system, a bus data transceiver and a host computer, all fixed on a fixed bracket.

[0006] The fixed bracket is used to connect to the mounting bracket of the diesel range extender; the intake system is used to connect to the intake end of the engine system of the diesel range extender; the exhaust system is used to connect to the exhaust end of the engine system of the diesel range extender; the cooling system is used to connect to the pipelines of the engine system and generator system of the diesel range extender; the fuel supply system is used to connect to the fuel line of the engine system of the diesel range extender; the power battery is used to provide high voltage to the engine system of the diesel range extender; the low-voltage power supply is used to provide low voltage to the control system of the diesel range extender; sensors are installed on the intake system, exhaust system, cooling system, and power battery. The data collected by the sensors is transmitted to the data acquisition system, which transmits the data to the host computer through a bus data transceiver for fault location or function verification. The host computer is used to issue commands to the control system of the diesel range extender.

[0007] Furthermore, the sensors include temperature sensors, pressure sensors, and flow sensors. Several temperature sensors are respectively installed on the intake system, exhaust system, cooling system, and power battery; several pressure sensors are installed on the cooling system; and several flow sensors are installed on the cooling system.

[0008] Furthermore, the positive and negative terminals of the sensor power supply are connected to the positive and negative terminals of the low-voltage power supply.

[0009] Furthermore, the intake system has the same intake resistance and filtration efficiency as the engine system of the diesel range extender; the exhaust system has the same exhaust back pressure and exhaust temperature as the engine system of the diesel range extender; the cooling system has the same heat dissipation capacity as the cooling system of the military unmanned vehicle; the fuel supply system has the same fuel supply volume as the fuel supply system of the military unmanned vehicle; the power battery operating voltage and maximum charging / discharging current have the same operating range as the power battery of the military unmanned vehicle; and the low-voltage power supply operating voltage adjustment range has the same operating range as the low-voltage power supply of the military unmanned vehicle.

[0010] Furthermore, the bus data transceiver receives bus information from the control system and sensor data collected by the data acquisition system and translated according to the DBC protocol via the CAN communication protocol;

[0011] The host computer and the bus data transceiver are connected via USB, and the bus data transceiver is connected to the data acquisition system and the control system via DB9 interface.

[0012] Furthermore, the host computer is equipped with simulation modeling software and a simulation model. The simulation modeling software is used to build and run the model. The simulation model includes a real vehicle dynamics module, a key component module of the unmanned vehicle power energy system, and a communication module. The key component module of the unmanned vehicle power energy system consists of an unmanned vehicle diesel range extender module and a power battery module.

[0013] During the experiment, the sensor data collected by the bus data transceiver device is sent to the host computer. The communication module of the simulation model reads the data and assigns it to the key component module of the unmanned vehicle diesel range extender. Based on the loading of the engine system and generator system of the unmanned vehicle diesel range extender and the charging and discharging protocol of the power battery, combined with the actual vehicle dynamics module, the bus commands of the engine system and generator system of the unmanned vehicle diesel range extender are generated and sent to the control system through the bus data transceiver device. The control system then changes the working status of the engine system and generator system of the unmanned vehicle diesel range extender in real time.

[0014] Beneficial effects:

[0015] 1. This invention connects to the diesel range extender of the military unmanned vehicle, which is separated from the pod, via cables and pipelines, enabling field debugging. It not only provides field start-up conditions for the diesel range extender, enabling its start-up, shutdown, and power generation functions, but also allows sensors to monitor the real-time operating status of each subsystem of the diesel range extender. This facilitates fault location and functional verification by test personnel in the field, achieving independent debugging of the diesel range extender after the pod. This solves the problem of having to wait for rescue vehicles to transport the military unmanned vehicle back to the test site workshop when the diesel range extender malfunctioned during previous field tests, reducing the cost of field testing and improving testing efficiency.

[0016] 2. The design of each component of the device of the present invention is matched with the matching diesel range extender of the military unmanned vehicle, and replicates the system composition of the diesel range extender to realize the start-stop and power generation functions. This makes the working conditions of each system of the military unmanned vehicle diesel range extender the same as the actual vehicle conditions, and has the debugging conditions of the military unmanned vehicle diesel range extender. It can realize the positioning fault after the pod is launched and the functional verification before the pod is dropped after the fault is resolved.

[0017] 3. The interaction between the UAV, bus data transceiver and control system of the present invention can accurately simulate the actual working state of the diesel range extender of the unmanned vehicle in place. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the device of the present invention.

[0019] Figure 2 This describes the data transmission operation principle during the experiment of this invention. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] This invention provides a field test device for a diesel range extender for military unmanned vehicles, including a fixed bracket, an air intake system, an exhaust system, a cooling system, a fuel supply system, a power battery, a low-voltage power supply, a data acquisition system, a bus data transceiver device, and a host computer.

[0022] like Figure 1 As shown, the intake system, exhaust system, cooling system, fuel supply system, power battery, and low-voltage power supply are all fixed on the fixed bracket. The fixed bracket is sized to match the mounting bracket of the diesel range extender and is used to connect with the mounting bracket of the diesel range extender. In this embodiment, the two are connected by bolts.

[0023] The intake system has the same intake resistance and filtration efficiency as the engine system of the diesel range extender, and the interface size is matched. It is used to connect to the intake end of the engine system of the diesel range extender.

[0024] The exhaust system has the same exhaust back pressure and exhaust temperature as the engine system of the diesel range extender, and the interface size is matched, so as to connect to the exhaust end of the engine system of the diesel range extender.

[0025] The cooling system has the same heat dissipation capacity and interface size as the cooling system of military unmanned vehicles, and is used to connect the pipelines to the diesel range extender engine system and generator system.

[0026] The fuel supply system has the same fuel supply capacity as the military unmanned vehicle and is used to connect to the engine system fuel line of the diesel range extender.

[0027] The operating voltage and maximum charge / discharge current of the power battery are consistent with those of the power battery in the military unmanned vehicle, and it is used to provide high voltage for the engine system of the diesel range extender. The positive and negative output cables of the engine system are connected to the positive and negative terminals of the power battery, respectively.

[0028] The low-voltage power supply has the same operating voltage range as the low-voltage power supply for military unmanned vehicles, and is used to provide low voltage for the control system of the diesel range extender. The positive and negative terminals of the control system power supply are connected to the positive and negative terminals of the low-voltage power supply, respectively.

[0029] Sensors are installed in the intake system, exhaust system, cooling system, and power battery. The positive and negative terminals of each sensor are connected to the positive and negative terminals of the low-voltage power supply, respectively. Simultaneously, the sensor's communication line is connected to the data acquisition system. Data collected by the sensors is transmitted to the data acquisition system, which then transmits it to a host computer via a bus data transceiver. This enables real-time monitoring for fault location or functional verification. The host computer is used to issue commands to the diesel range extender's control system. The host computer is equipped with bus communication software, enabling it to receive sensor data from the bus data transceiver in real time and send bus commands to the diesel range extender's control system.

[0030] Specifically, the sensors include temperature sensors, pressure sensors, and flow sensors. Several temperature sensors are respectively installed in the intake system, exhaust system, cooling system, and power battery; several pressure sensors are installed in the cooling system; and several flow sensors are installed in the cooling system. The cooling system is divided into a water circuit and an air circuit. The air circuit only monitors temperature and pressure, while the water circuit monitors temperature, pressure, and flow rate.

[0031] In this embodiment, the bus data transceiver receives bus information from the control system and sensor data collected by the data acquisition system and translated according to the DBC protocol via the CAN communication protocol. The host computer and the bus data transceiver are connected via USB, and the bus data transceiver is connected to the data acquisition system and the control system via DB9 interfaces. The specific connection method depends on the communication type of the unmanned vehicle diesel range extender in the actual test.

[0032] The host computer contains simulation modeling software (such as Simulink or similar software) and simulation models. The simulation modeling software is used to build and run the models. The simulation models include a real vehicle dynamics module, a key component module of the unmanned vehicle power energy system, and a communication module. The key component module of the unmanned vehicle power energy system consists of an unmanned vehicle diesel range extender module and a power battery module. The unmanned vehicle diesel range extender module is obtained by digitally modeling the core parameters of the core components of the unmanned vehicle diesel range extender, such as the engine, generator, and radiator, in the simulation modeling software.

[0033] During the experiment, the operating principles of the host computer and the simulation model are as follows: Figure 2 As shown, after the sensor data collected by the bus data transceiver enters the host computer, it is read by the communication module of the simulation model and assigned to the key component module of the unmanned vehicle diesel range extender. Based on the loading of the engine system and generator system of the unmanned vehicle diesel range extender and the charging and discharging protocol of the power battery, combined with the actual vehicle dynamics module, the bus commands of the engine system and generator system of the unmanned vehicle diesel range extender are generated and sent to the control system through the bus data transceiver. The control system then changes the working state of the engine system and generator system of the unmanned vehicle diesel range extender in real time. In this way, the actual working state of the unmanned vehicle diesel range extender can be accurately simulated in place.

[0034] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A field test device for a diesel range extender for a military unmanned vehicle, characterized in that, It includes an intake system, an exhaust system, a cooling system, a fuel supply system, a power battery and a low-voltage power supply, as well as a data acquisition system, a bus data transceiver and a host computer, all fixed on a fixed bracket. The fixed bracket is used to connect to the mounting bracket of the diesel range extender; the intake system is used to connect to the intake end of the engine system of the diesel range extender; the exhaust system is used to connect to the exhaust end of the engine system of the diesel range extender; the cooling system is used to connect to the pipelines of the engine system and generator system of the diesel range extender; the fuel supply system is used to connect to the fuel line of the engine system of the diesel range extender; the power battery is used to provide high voltage to the engine system of the diesel range extender; the low-voltage power supply is used to provide low voltage to the control system of the diesel range extender; sensors are installed on the intake system, exhaust system, cooling system, and power battery. The data collected by the sensors is transmitted to the data acquisition system, which transmits the data to the host computer through a bus data transceiver for fault location or function verification. The host computer is used to issue commands to the control system of the diesel range extender.

2. The field test device for the diesel range extender of a military unmanned vehicle as described in claim 1, characterized in that, The sensors include temperature sensors, pressure sensors, and flow sensors. Several temperature sensors are respectively installed on the intake system, exhaust system, cooling system, and power battery; several pressure sensors are installed on the cooling system; and several flow sensors are installed on the cooling system.

3. The field test device for a military unmanned vehicle diesel range extender as described in claim 1, characterized in that, The sensor's power supply positive and negative terminals are connected to the positive and negative terminals of the low-voltage power supply.

4. The field test device for the diesel range extender of a military unmanned vehicle as described in claim 1, characterized in that, The intake system has the same intake resistance and filtration efficiency as the engine system of the diesel range extender; the exhaust system has the same exhaust back pressure and exhaust temperature as the engine system of the diesel range extender; the cooling system has the same heat dissipation capacity as the cooling system of the military unmanned vehicle; the fuel supply system has the same fuel supply volume as the fuel supply system of the military unmanned vehicle; and the power battery's operating voltage and maximum charging / discharging current have the same operating range as the power battery of the military unmanned vehicle. The low-voltage power supply's operating voltage adjustment range is consistent with that of the military unmanned vehicle's low-voltage power supply.

5. The field test device for a military unmanned vehicle diesel range extender as described in any one of claims 1-4, characterized in that, The bus data transceiver device receives bus information from the control system and sensor data collected by the data acquisition system and translated according to the DBC protocol via the CAN communication protocol. The host computer and the bus data transceiver are connected via USB, and the bus data transceiver is connected to the data acquisition system and the control system via DB9 interface.

6. The field test device for a military unmanned vehicle diesel range extender as described in claim 5, characterized in that, The host computer is equipped with simulation modeling software and simulation model. The simulation modeling software is used to build and run the model. The simulation model includes a real vehicle dynamics module, a key component module of the unmanned vehicle power energy system, and a communication module. The key component module of the unmanned vehicle power energy system consists of an unmanned vehicle diesel range extender module and a power battery module. During the experiment, the sensor data collected by the bus data transceiver device is sent to the host computer. The communication module of the simulation model reads the data and assigns it to the key component module of the unmanned vehicle diesel range extender. Based on the loading of the engine system and generator system of the unmanned vehicle diesel range extender and the charging and discharging protocol of the power battery, combined with the actual vehicle dynamics module, the bus commands of the engine system and generator system of the unmanned vehicle diesel range extender are generated and sent to the control system through the bus data transceiver device. The control system then changes the working status of the engine system and generator system of the unmanned vehicle diesel range extender in real time.

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