CN108173297A - An autonomous/semi-autonomous fuel cell mobile power supply system - Google Patents

Abstract

The present invention relates to the field of mobile power supply, in particular to an autonomous/semi-autonomous fuel cell mobile power supply system, which includes a power supply system connected to an MCU for supplying electric energy to the inside of the system and outputting electric energy to the outside at the same time; the motion system is connected to the MCU and receives the MCU The motion control commands issued are used to complete the corresponding motion actions; the camera is connected to the wireless router, and the collected environmental information is sent to the wireless router. The other end of the router is connected to the MCU through the serial communication module, and the control command received from the control terminal is sent to the MCU through the serial communication module to control the system. The present invention can greatly improve the intelligence level of the system by using the direct drive of the motor, and provides a basis for intelligent motion control; it provides short-term high power and long-term rated power electric energy output.

Description

An autonomous/semi-autonomous fuel cell mobile power supply system

technical field

The invention relates to the field of mobile power supply, in particular to an autonomous/semi-autonomous fuel cell mobile power supply system.

Background technique

In the past, the temporary power supply system was mostly drag-type or transport-type, which required the use of tractors or manual handling. Under some complex terrain conditions, the power supply system could not pass through. And because the previous power supply system uses gasoline and diesel engines to generate power, it cannot work normally in a bumpy environment. The active mobile power supply system needs to add an additional set of gasoline and diesel drives, which takes up a lot of space and increases costs. Because the fuel cell power generation system does not require mechanical components, and the supporting fans, air pumps, oil pumps, etc. can adapt to bumpy environments, the fuel cell can generate power during the system's movement.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention provides an autonomous/semi-autonomous fuel cell mobile power supply system, which solves the problems of complex structure and low space utilization of the active mobile power supply system by using the electric energy generated by the fuel cell to directly drive the motor.

The technical scheme that the present invention adopts for realizing the above object is:

An autonomous/semi-autonomous fuel cell mobile power supply system, including a power supply system connected to an MCU, which is used to supply power to the system and output power to the outside at the same time;

The motion system is connected to the MCU, and receives the motion control commands issued by the MCU to complete the corresponding motion actions;

The camera connects to the wireless router, collects environmental information and sends it to the wireless router, and the wireless router wirelessly connects to the control terminal, sends the environmental information to the control terminal, and receives control commands from the control terminal. The other end of the wireless router is connected to the MCU through a serial communication module, and the The control command of the control terminal is sent to the MCU through the serial port communication module to control the system.

The power system includes a power module, a fuel cell and a lithium battery;

The fuel cell is connected to the power module to convert chemical energy into electrical energy to power the system;

The lithium battery is connected to the power module to provide power for the system and output AC and DC power through the power module.

The motion system includes: the reduction motor is connected to the MCU through the motor driver; the clutch is connected to the MCU through the clutch driving module; the brake device is connected to the MCU through the brake driving module.

It also includes a lighting system connected to the MCU for lighting.

The lighting system includes a light source and a light source driver.

The power module includes:

DC-DC, one end is connected to a fuel cell, and the other end is connected to a lithium battery through a relay to charge the lithium battery; DC-DC is connected to DC-DC and DC-AC through a relay to output direct current or alternating current.

The present invention has the following beneficial effects and advantages:

1. The invention can greatly improve the intelligence level of the system by using the direct drive of the motor, and provides the basis for intelligent motion control;

2. The invention can realize the autonomous/semi-autonomous movement of the system, make the power supply system arrive at the working place as soon as possible, realize the intelligent control of the system movement, use fuel cells and lithium batteries to work in parallel, and can provide short-term high power and long-term rated power electric energy output.

Description of drawings

Fig. 1 is a control structure block diagram of the present invention;

Fig. 2 is the hardware structural diagram of the present invention; Wherein 101 is a tire, 102 is a brake system, 103 is a clutch system, 104 is a reduction motor, 105 is a suspension system, 106 is a chassis, 107 is a control system, and 108 is a power management system , 109 is a fuel tank, 110 is a fuel cell, 111 is a lithium battery, 112 is a lighting system, 113 is a casing, 114 is a camera;

Fig. 3 is a power management flowchart of the present invention;

Fig. 4 is motion control flowchart of the present invention;

Fig. 5 is a structural diagram of the power module of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Fig. 1, it is a block diagram of the control structure of the present invention.

The fuel cell mobile power supply system uses its own wireless router to communicate with the control terminal, which can send images of the surrounding environment of the system, system information, and receive instructions sent by the control terminal. The operator can control the surrounding environment of the power supply system displayed on the terminal. The camera moves to observe the situation in different directions, and controls the system movement according to the environmental status and the destination. The system motion system is composed of geared motors, clutches, brakes, and suspensions installed on four tires, which can realize the functions of the system such as forward, backward, turning, and in-situ steering. The lighting system is responsible for lighting the control system movement at night and can provide emergency lighting. The power system consists of a fuel cell system, a lithium battery system, and a power module: the fuel cell system is responsible for converting the chemical energy of the fuel into electrical energy and powering the system; the lithium battery system is responsible for outputting and storing electrical energy; the power module is responsible for providing electrical energy and Externally output the required AC and DC power. In addition, the system can release the clutch, connect the communication cable, realize the trailer function; and install the autonomous navigation system/following system to realize functions such as automatic driving to the destination or following the movement of the preceding vehicle.

As shown in Fig. 2, it is a hardware structural diagram of the present invention.

101 tires: drive the whole system to move;

102 Braking system: provide braking force when the system needs to decelerate and brake;

103 Clutch system: when the clutch is working, the torque output by the reduction motor 104 can be transmitted, and if it is not working, the torque output by the reduction motor 104 will not be transmitted;

104 geared motor: used to drive the movement of the system and convert excess mechanical energy into electrical energy;

105 Suspension system: ensure that the system is as stable as possible during the movement process, and play a supporting role in the system;

106 Chassis: used to connect the bottom motion system, and support the shell 113 and other systems;

107 Control system: including the control circuit and drive circuit of the whole vehicle;

108 Power management system: responsible for providing power for each system of the vehicle and outputting power externally;

109 Fuel tank: used to store the fuel required by the fuel cell;

110 Fuel cell system: used to convert fuel into electrical energy for power management system;

111 Lithium battery system: used to store and output electric energy;

112 Lighting system: used to provide lighting;

113 Shell: used to protect key parts of the system;

114 Camera system: used to observe the real-time situation near the system.

FIG. 3 is a flowchart of the power management of the present invention.

After the system is started, initialize each part, and the system tries to establish a connection with the control system through a wireless router. After the connection is successful. If the system is not turned on, keep the system connected and wait for the boot command; after turning on the system, first judge the remaining capacity of the lithium battery, if it is higher than 90%, turn off the fuel cell system, if it is lower than 70%, turn on the fuel cell system, and Provide external power according to the control command. When the shutdown command is received, the power supply system is turned off, and the power management program is exited.

As shown in Fig. 4, it is a motion control flow chart of the present invention.

After the system is started, initialize each part, and the system tries to establish a connection with the control system through a wireless router. After the connection is successful. In the automatic driving state, access the automatic driving control module to obtain the system motion control information, and control the geared motor, brake system, and clutch system to make corresponding actions, and move according to the instructions of the automatic driving control module; in the manual driving mode, the system follows the control The control command of the personnel moves; in the traction mode, the system releases the clutch and controls the brake system according to the control system command; otherwise it is in the static mode, controls the clutch and brake to ensure that the system is in a static state. When receiving the command to close the system, exit the motion control to ensure the system is still.

FIG. 5 is a structural diagram of the power module of the present invention.

Power module structure: the fuel cell can charge the lithium battery through the DC-DC inside the power module or output electric energy together with the lithium battery, and provide direct current to other devices through DC-DC or alternating current to other devices through DC-AC.

The purpose of the power module: to provide the system with the DC power required by each component, as well as the AC power and DC power required for external output.

Claims (6)

1. An autonomous/semi-autonomous fuel cell mobile power supply system, characterized in that: it includes a power supply system connected to the MCU, which is used to provide electrical energy to the inside of the system and output electrical energy to the outside at the same time; The motion system is connected to the MCU, and receives the motion control commands issued by the MCU to complete the corresponding motion actions; The camera connects to the wireless router, collects environmental information and sends it to the wireless router, and the wireless router wirelessly connects to the control terminal, sends the environmental information to the control terminal, and receives control commands from the control terminal. The other end of the wireless router is connected to the MCU through a serial communication module, and the The control command of the control terminal is sent to the MCU through the serial port communication module to control the system. 2. The autonomous/semi-autonomous fuel cell mobile power supply system according to claim 1, characterized in that: the power supply system includes a power module, a fuel cell and a lithium battery; The fuel cell is connected to the power module to convert chemical energy into electrical energy to power the system; The lithium battery is connected to the power module to provide power for the system and output AC and DC power through the power module. 3. The autonomous/semi-autonomous fuel cell mobile power supply system according to claim 1, characterized in that: the motion system includes: the reduction motor is connected to the MCU through the motor driver; the clutch is connected to the MCU through the clutch drive module; the braking device is driven by the brake The module is connected to the MCU. 4. The autonomous/semi-autonomous fuel cell mobile power supply system according to claim 1, further comprising a lighting system connected to the MCU for lighting. 5. The autonomous/semi-autonomous fuel cell mobile power supply system according to claim 4, wherein the lighting system includes a light source and a light source driver. 6. The autonomous/semi-autonomous fuel cell mobile power supply system according to claim 2, characterized in that: the power module includes: DC-DC, one end is connected to a fuel cell, and the other end is connected to a lithium battery through a relay to charge the lithium battery; DC-DC is connected to DC-DC and DC-AC through a relay to output direct current or alternating current.