Methanol range-extending type automobile crane power system

Abstract

The utility model discloses a methanol range-extending type automobile crane power system which comprises an energy storage device, a methanol range extender, a range extender controller, an upper motor, an upper motor controller, a main driving motor, a main driving motor controller and a whole automobile controller, the methanol range extender is connected with the energy storage device, the range extender controller is connected with the range extender, and the whole automobile controller is connected with the main driving motor. The upper motor is connected with the energy storage device, the upper motor controller is arranged between the energy storage device and the upper motor, the main driving motor is connected with the energy storage device, and the main driving motor controller is arranged between the main driving motor and the energy storage device. The vehicle control unit is respectively connected with the energy storage device, the range extender controller, the upper motor controller and the main driving motor controller, the methanol engine is used as a power source, carbon emission is effectively reduced, environmental pollution is avoided, cruising ability is effectively improved, and safety of a battery is improved at the same time.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile cranes, and in particular relates to a methanol range-extended automobile crane power system. Background Art

[0002] At present, construction machinery is following the development direction of "energy conservation and emission reduction" in the automobile industry, vigorously developing and applying low-carbon, environmentally friendly green energy, and reducing the consumption and dependence on traditional energy such as fuel is an inevitable development result.

[0003] Currently, new energy vehicle cranes in the industry primarily focus on pure electric and hybrid powertrains. The most popular hybrid models on the market are primarily gasoline-electric hybrids. While gasoline-electric hybrids overcome the drawbacks of pure electric models, such as short range and inconvenient charging, their added diesel internal combustion engine still compromises economic performance, and the carbon emissions from post-processing also severely impact their environmental friendliness. Utility Model Content

[0004] In order to at least partially solve the technical problems existing in the above-mentioned prior art, the utility model provides a methanol range-extended truck crane power system.

[0005] The methanol-range extended-range truck crane power system of the utility model includes:

[0006] an energy storage device for storing and releasing electrical energy;

[0007] a methanol range extender, the methanol range extender being connected to the energy storage device and being used to provide electrical energy to the energy storage device;

[0008] A range extender controller, connected to the range extender, for monitoring the methanol range extender and controlling the start and stop, speed setting, and power generation of the methanol range extender;

[0009] An upper-mounted motor, connected to the energy storage device, for providing power to the upper-mounted operation and the hydraulic system of the outriggers;

[0010] A top-mounted motor controller, disposed between the energy storage device and the top-mounted motor, for controlling the start and stop of the top-mounted motor;

[0011] a main drive motor connected to the energy storage device and used to provide driving force for the truck crane;

[0012] A main drive motor controller, which is arranged between the main drive motor and the energy storage device and is used to control the start and stop of the main drive motor;

[0013] A vehicle controller, the vehicle controller is respectively connected to the energy storage device, the range extender controller, the upper motor controller and the main drive motor controller, and is used to collect status information of the energy storage device, the methanol range extender, the upper motor and the main drive motor, and send control commands to the range extender controller, the upper motor controller and the main drive motor controller.

[0014] Furthermore, in the above-mentioned methanol-range extended truck crane power system, the methanol range extender includes a methanol engine, a FISG motor, a FISG motor controller and a gasoline pump. The methanol engine and the FISG motor are integrated and connected through a flywheel, the output end of the gasoline pump is connected to the methanol engine, and the FISG motor is connected to the energy storage device through the FISG motor controller.

[0015] Furthermore, in the above-mentioned methanol-range extended-range truck crane power system, the energy storage device includes a power battery and a high-voltage control box. The high-voltage control box is arranged on the power battery, and the high-voltage control box is used to monitor and control the input and output of the power battery.

[0016] Furthermore, in the above-mentioned methanol extended-range truck crane power system, the control end of the high-voltage control box is connected to the vehicle controller, the input end of the high-voltage control box is connected to the FISG motor controller, and the output end of the high-voltage control box is respectively connected to the upper motor controller and the main drive motor controller.

[0017] The methanol-range extended-range truck crane power system of the present utility model has the following advantages and beneficial effects:

[0018] The utility model adopts a methanol engine as a power source, which effectively reduces carbon emissions and avoids environmental pollution. By connecting the vehicle controller, the range extender controller and the energy storage device, it effectively improves the endurance and improves the safety of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only used to further understand the embodiments of the present invention and constitute part of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0020] Figure 1 This is a structural topology diagram of the power system of the methanol range-extended truck crane of the present utility model;

[0021] Figure 2 This is a schematic diagram of the range extender structure of the methanol range-extended truck crane power system of the present utility model;

[0022] Figure 3 This is the circuit topology diagram of the power system of the methanol-range extended-range truck crane of the present utility model.

[0023] Description of reference numerals:

[0024] 1: Energy storage device, 11: Power battery, 12: High-voltage control box;

[0025] 2: Methanol range extender, 21: Methanol engine, 22: FISG motor, 23: FISG motor controller, 24: Gasoline pump;

[0026] 3: Range extender controller; 4: Body motor; 5: Body motor controller; 6: Main drive motor; 7: Main drive motor controller; 8: Vehicle controller. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will provide a clear and complete description of the technical solutions of the present invention in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0028] like Figures 1 to 2 As shown, the methanol-range extended-range truck crane power system of the present invention includes:

[0029] Energy storage device 1, energy storage device 1 is used to store and release electrical energy;

[0030] The methanol range extender 2 is connected to the energy storage device 1 and is used to provide electrical energy to the energy storage device 1;

[0031] The range extender controller 3 is connected to the range extender and is used to monitor the methanol range extender 2 and control the start and stop, speed setting and power generation of the methanol range extender 2;

[0032] The upper-mounted motor 4 is connected to the energy storage device 1 and is used to provide power for the upper-mounted operation and the outrigger hydraulic system;

[0033] The upper motor controller 5 is provided between the energy storage device 1 and the upper motor 4 and is used to control the start and stop of the upper motor 4;

[0034] A main drive motor 6, which is connected to the energy storage device 1 and is used to provide driving force for the truck crane;

[0035] A main drive motor controller 7 is provided between the main drive motor 6 and the energy storage device 1 and is used to control the start and stop of the main drive motor 6;

[0036] The vehicle controller 8 is connected to the energy storage device 1, the range extender controller 3, the upper motor controller 5 and the main drive motor controller 7 respectively, and is used to collect status information of the energy storage device 1, the methanol range extender 2, the upper motor 4 and the main drive motor 6, and send control commands to the range extender controller 3, the upper motor controller 5 and the main drive motor controller 7.

[0037] Specifically, when the energy storage device 1 is low on power or the charge reaches the requirement, the vehicle controller 8 collects relevant information and sends a control command to the range extender controller 3. The range extender controller 3 controls the start-up, speed setting, power generation or shutdown of the methanol range extender 2 by receiving the command from the vehicle controller 8 and combining the feedback information of the internal components of the methanol range extender 2. After executing the corresponding command, the methanol range extender 2 feeds back the corresponding status to the range extender controller 3;

[0038] When power is provided to the upper motor 4 and the main drive motor 6 , the vehicle controller 8 sends control commands to the upper motor controller 5 and the main drive motor controller 7 .

[0039] Furthermore, in the methanol-range extended-type truck crane power system of the present invention, the methanol range extender 2 includes a methanol engine 21, a FISG motor 22, a FISG motor controller 23 and a gasoline pump 24. The methanol engine 21 and the FISG motor 22 are integrated and connected through a flywheel. The output end of the gasoline pump 24 is connected to the methanol engine 21. The FISG motor 22 is connected to the energy storage device 1 through the FISG motor controller 23, so that the methanol engine 21 is used as the driving force and methanol is used as fuel to drive the FISG motor 22 to generate electricity. When the methanol engine 21 is ignited, the gasoline pump 24 is used to supply fuel for ignition, and the methanol fuel is switched after the methanol engine 21 is started.

[0040] Furthermore, in the methanol-range extended-range truck crane power system of the present invention, the energy storage device 1 includes a power battery 11 and a high-voltage control box 12. The high-voltage control box 12 is arranged on the power battery 11. The high-voltage control box 12 is used to monitor and control the input and output of the power battery 11. The input and output of the power battery 11 are effectively managed through the high-voltage control box 12, thereby ensuring the safety and service life of the battery.

[0041] Furthermore, in the methanol-range extended-range truck crane power system of the present invention, the control end of the high-voltage control box 12 is connected to the vehicle controller 8, the input end of the high-voltage control box 12 is connected to the FISG motor controller 23, and the output end of the high-voltage control box 12 is respectively connected to the upper motor controller 5 and the main drive motor controller 7.

[0042] The power system control method of the methanol range-extended truck crane of the present utility model is as follows:

[0043] like Figure 3 As shown, when the vehicle controller 8 collects the status information of the methanol range extender 2 through the range extender controller 3, the vehicle controller 8 sends a constant speed control command to the range extender controller 3 to control the methanol range extender 2 to run at a constant speed. For example, the methanol engine 21 is in the most efficient fuel consumption area at 1400 r / min, and the output power at this time can meet the needs of the range extender generator, so the range extender controller 3 controls the methanol engine 21 to run at a constant speed of 1400 r / min;

[0044] When the vehicle controller 8 collects the status information of the energy storage device 1, when the power of the energy storage device 1 is less than or equal to 45%, the vehicle controller 8 sends a control command to the range extender controller 3 to control the methanol range extender 2 to operate and charge the energy storage device 1. In order to prevent the overcharging of the power battery 11, all power battery 11 charging-related (including methanol range extender 2) working conditions make the high-voltage control box 12 perform interlocking control according to the battery power, and increase the voltage interlock between the high-voltage control box 12 and the vehicle controller 8. In the pure AC charging mode, the voltage is limited to 95% of the upper limit of the working voltage specified by the power battery 11; a similar situation occurs in the "charging while running" mode of the upper installation. In this mode, since the upper installation motor 4 will not work all the time, the power battery 11 is actually working in a state of frequent switching of charging and discharging. At this time, the condition for the power battery 11 to be fully charged is set at 95% of the upper limit of the working voltage specified by the power battery 11;

[0045] On the contrary, when the power of the energy storage device 1 is greater than or equal to 70%, the vehicle controller 8 sends a control command to the range extender controller 3 to control the methanol range extender 2 to shut down;

[0046] When the vehicle controller 8 collects the status information of the energy storage device 1 and finds that the energy storage device 1 is in DC charging or AC charging when the vehicle is parked, the vehicle controller 8 sends a control command to the range extender controller 3 to control the methanol range extender 2 to prohibit operation;

[0047] When the vehicle controller 8 sends a power-on command to the energy storage device 1, the high-voltage control box 12 detects a communication interruption during the power-on process, and the high-voltage control box 12 disconnects the relays in sequence according to the power-off process. For example: when receiving the power-on command: close the left battery pre-charge relay; after the left pre-charge relay is closed, delay 0.5S and close the middle battery pre-charge relay; after the middle pre-charge relay is closed, delay 0.5S and close the right battery pre-charge relay; after the right pre-charge relay is closed, delay 0.5S and close the left battery main relay; after the left main relay is closed, delay 0.5S and close the middle battery main relay; after the middle main relay is closed, delay 0.5S and close the right battery main relay; after the right battery relay is closed, delay 0.5S and close the main relay for pre-charge; after the main relay for pre-charge is closed, delay 0.5S and close the main relay;

[0048] After receiving the high-voltage lowering instruction, the disconnection action is as follows: disconnect the main relay of the main relay; after the main relay is disconnected, delay 0.5S and disconnect the pre-charge of the main relay; after the pre-charge of the main relay is disconnected, delay 0.5S and disconnect the left battery main relay; after the left battery main relay is disconnected, delay 0.5S and disconnect the middle battery main relay; after the middle battery main relay is disconnected, delay 0.5S and disconnect the right battery main relay; after the right battery main relay is disconnected, delay 0.5S and disconnect the left battery pre-charge relay; after the left battery pre-charge relay is disconnected, delay 0.5S and disconnect the middle battery pre-charge relay; after the middle battery pre-charge relay is disconnected, delay 0.5S and disconnect the right battery pre-charge relay;

[0049] When communication is interrupted during operation after power-on, all relay states remain unchanged;

[0050] When the range extender controller 3 receives the closing instruction from the vehicle controller 8, the range extender controller 3 closes the methanol range extender 2 pre-charge relay, delays 0.5S, and then closes the methanol range extender 2 main relay;

[0051] After receiving the disconnection command, the range extender controller 3 disconnects the main relay of the methanol range extender 2, delays 0.5S, and then disconnects the pre-charge relay of the methanol range extender 2.

[0052] In summary, compared with the existing technology, the methanol-range extended-type truck crane power system of the present invention has the following advantages and beneficial effects: the present invention adopts a methanol engine as a power source, effectively reducing carbon emissions and avoiding environmental pollution. By connecting the vehicle controller, the range extender controller and the energy storage device, the endurance is effectively improved while improving the safety of the battery.

[0053] It should be noted that, in this document, unless otherwise expressly specified or limited, the term "connected" or its synonyms should be interpreted broadly. For example, "connected" can mean a fixed or removable connection; a mechanical or electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication between two elements or the interaction between two elements. A person of ordinary skill in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances. Furthermore, expressions such as "first" and "second" are used solely to distinguish one entity or operation from another and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, the terms "include," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Furthermore, the terms "front," "rear," "left," "right," "upper," and "lower" herein are used with reference to the positions shown in the accompanying drawings.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A methanol range-extended truck crane power system, characterized in that: The methanol range-extended truck crane power system includes: an energy storage device for storing and releasing electrical energy; a methanol range extender, the methanol range extender being connected to the energy storage device and being used to provide electrical energy to the energy storage device; A range extender controller, connected to the range extender, for monitoring the methanol range extender and controlling the start and stop, speed setting, and power generation of the methanol range extender; An upper-mounted motor, connected to the energy storage device, for providing power to the upper-mounted operation and the hydraulic system of the outriggers; A top-mounted motor controller, disposed between the energy storage device and the top-mounted motor, for controlling the start and stop of the top-mounted motor; a main drive motor connected to the energy storage device and used to provide driving force for the truck crane; A main drive motor controller, which is arranged between the main drive motor and the energy storage device and is used to control the start and stop of the main drive motor; A vehicle controller, the vehicle controller is respectively connected to the energy storage device, the range extender controller, the upper motor controller and the main drive motor controller, and is used to collect status information of the energy storage device, the methanol range extender, the upper motor and the main drive motor, and send control commands to the range extender controller, the upper motor controller and the main drive motor controller.

2. The methanol range-extended truck crane power system according to claim 1, characterized in that: The methanol range extender includes a methanol engine, a FISG motor, a FISG motor controller and a gasoline pump. The methanol engine and the FISG motor are integrated and connected through a flywheel, the output end of the gasoline pump is connected to the methanol engine, and the FISG motor is connected to the energy storage device through the FISG motor controller.

3. The methanol range-extended truck crane power system according to claim 2, characterized in that: The energy storage device includes a power battery and a high-voltage control box. The high-voltage control box is arranged on the power battery and is used to monitor and control the input and output of the power battery.

4. The methanol range-extended truck crane power system according to claim 3, characterized in that: The control end of the high-voltage control box is connected to the vehicle controller, the input end of the high-voltage control box is connected to the FISG motor controller, and the output end of the high-voltage control box is respectively connected to the upper motor controller and the main drive motor controller.

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