CN-121989904-A - Cheng Kuangka energy management control method, device and equipment and Cheng Kuangka

CN121989904ACN 121989904 ACN121989904 ACN 121989904ACN-121989904-A

Abstract

The invention discloses a method, a device and equipment for controlling power management of an increment Cheng Kuangka and an increment Cheng Kuangka, which comprise the steps of determining the current working condition of the increment Cheng Kuangka according to the change trend of the actual state of charge of the increment Cheng Kuangka and the target state of charge, controlling a range extender to supplement power for a power battery and supply power for a driving motor at the same time after determining that the increment Cheng Kuangka is in a slope top unloading working condition, controlling the actual state of charge of the power battery to be maintained in a preset slope top target state of charge range, controlling the power battery to conduct power supply after determining that the increment Cheng Kuangka is in a slope bottom loading working condition, and controlling the actual state of charge of the power battery to be maintained in a preset slope bottom target state of charge range, wherein when the range extender supplies power, controlling the range extender to operate in a preset high-efficiency range based on a power generation efficiency curve of the range extender. The energy management control method can give consideration to system robustness, fuel economy and power generation efficiency under the condition of not depending on a specific external sensor.

Inventors

ZHANG YAXIAO
SHI MEILI
WANG XIJIE
CUI JINGPENG

Assignees

潍柴动力股份有限公司

Dates

Publication Date: 20260508
Application Date: 20260407

Claims (10)

1. An add Cheng Kuangka energy management control method, comprising: Determining the current working conditions of the increment Cheng Kuangka according to the change trend of the actual state of charge of the increment Cheng Kuangka and a target state of charge, wherein the current working conditions comprise a full-load climbing working condition, a slope top unloading working condition, an idle descending working condition and a slope bottom loading working condition; After the extended-range ore card is determined to be in the unloading working condition of the slope top, controlling an extended-range device to supplement power for a power battery and supply power for a driving motor, and simultaneously controlling the actual state of charge of the power battery to be maintained within a preset target state of charge range of the slope top; after the extended-range ore card is determined to be in the loading working condition of the slope bottom, controlling the power battery to conduct dominant power supply, and simultaneously controlling the actual state of charge of the power battery to be maintained within a preset target state of charge range of the slope bottom; When the range extender supplies power, the range extender is controlled to operate in a preset high-efficiency interval based on a power generation efficiency curve of the range extender.
2. The incremental Cheng Kuangka energy management control method of claim 1 wherein determining the current operating condition of the increment Cheng Kuangka based on the trend of change in the actual state of charge of the increment Cheng Kuangka and the target state of charge comprises: When the actual state of charge is detected to be continuously reduced and lower than the target state of charge at the bottom of the slope, determining that the range-extended mine card is in the full-load climbing working condition; When the actual state of charge is detected not to decrease any more and starts to rise, determining that the range-extending ore card is in the slope top unloading working condition; When the actual state of charge is detected to continuously rise and is higher than the target state of charge of the slope top, determining that the increment Cheng Kuangka is in the idle downhill working condition; and when the actual charge state is detected not to rise any more and starts to fall, determining that the range-extending ore card is in the loading working condition of the slope bottom.
3. The increase Cheng Kuangka energy management control method of claim 1 or 2, further comprising, after determining the current operating condition of the increase Cheng Kuangka from the actual state of charge and the target state of charge of the increase Cheng Kuangka: And after the Cheng Kuangka is determined to be in the full-load climbing working condition, controlling the power battery and the range extender to jointly supply power for the driving motor, so that the driving motor outputs full power.
4. The incremental Cheng Kuangka energy management control method of claim 3 wherein controlling the power battery and the range extender in combination to power the drive motor after determining that the incremental Cheng Kuangka is in a full load hill climbing condition, causing the drive motor to output full power comprises: After the Cheng Kuangka is determined to be in the full-load climbing working condition, optimizing the power generation of the range extender based on the following formula by taking the total oil consumption as a principle, and supplying power to the driving motor according to the optimized power generation of the range extender to ensure that the driving motor is in full power output, wherein the aim of optimizing the power generation of the range extender is to ensure that the total oil consumption of the current working condition is lower than the total oil consumption of the current working condition at last time; ; ; ; ; ; ; Wherein, the Is the power generation oil consumption of the range extender, Is the energy output by the range extender, Is the current power generation efficiency of the range extender, T is the operation time length of the last time in the current operation working condition; Is the fuel consumption of the power battery, Is the energy output by the power battery, Is the average power generation efficiency of the range extender in the process of unloading the slope top, Is the power of the power battery; Is total oil consumption; is the current power generation efficiency of the power cell.
5. The extended Cheng Kuangka energy management control method of claim 1 or 2, wherein after determining that the extended range mine truck is in the top-of-grade unloading condition, controlling the extended range device to simultaneously replenish power to a power battery and supply power to a drive motor while controlling an actual state of charge of the power battery to be maintained within a preset top-of-grade target state of charge range comprises: After the distance-increasing mineral card is determined to be in the unloading working condition of the slope top, acquiring the oil consumption in the current working condition at last time, optimizing the power generation power of the distance-increasing device based on the principle of lowest total oil consumption, and controlling the distance-increasing device to supplement electricity for the power battery and supply electricity for the driving motor according to the power battery and the power generation power of the distance-increasing device after optimizing according to the power generation power and the power battery power of the distance-increasing device, and simultaneously controlling the actual state of charge of the power battery to be maintained in the preset target state of charge range of the slope top, wherein the aim of optimizing the power generation power of the distance-increasing device is to enable the oil consumption in the current working condition to be lower than the oil consumption in the current working condition at last time; ; ; ; ; ; Wherein, the Is the power generation oil consumption of the range extender, Is the energy output by the range extender, Is the current power generation efficiency of the range extender, T is the operation time length of the last time in the current operation working condition; Is the fuel consumption of the power battery, Is the energy output by the power battery, Is the power of the power battery; Is the total fuel consumption.
6. The method of claim 1 or 2, further comprising controlling the range extender to stop after determining that the increment Cheng Kuangka is in the idle downhill condition after determining that the increment Cheng Kuangka is in the current operating condition according to an actual state of charge and a target state of charge of the increment Cheng Kuangka, wherein the driving motor outputs negative torque to assist braking of the whole vehicle, and distributing driving motor braking torque according to braking requirements of the whole vehicle, and wherein braking power generation power of the driving motor is smaller than or equal to peak charging power of the power battery.
7. The extended Cheng Kuangka energy management control method according to claim 1 or 2, wherein after determining that the extended range mine truck is in the bottom-of-grade loading condition, controlling the power battery to conduct dominant power supply while controlling the actual state of charge of the power battery to be maintained within a preset bottom-of-grade target state of charge range comprises: After the distance-increasing mineral card is determined to be in the loading working condition of the slope bottom, optimizing the power generation power of the distance-increasing device based on the following formula by taking the total oil consumption as a principle, controlling the main power supply of the power battery according to the optimized power generation power of the distance-increasing device and the power of the power battery, and simultaneously controlling the actual state of charge of the power battery to be maintained within the range of the target state of charge of the preset slope bottom, wherein the aim of optimizing the power generation power of the distance-increasing device is to enable the oil consumption of the current working condition to be lower than that of the last time in the current working condition; ; ; ; ; ; Wherein, the Is the power generation oil consumption of the range extender, Is the energy output by the range extender, Is the current power generation efficiency of the range extender, T is the operation time length of the last time in the current operation working condition; Is the fuel consumption of the power battery, Is the energy output by the power battery, Is the power of the power battery; Is the total fuel consumption.
8. An add Cheng Kuangka energy management control device, comprising: The current operation condition determining module is used for determining the current operation condition of the increment Cheng Kuangka according to the change trend of the actual state of charge of the increment Cheng Kuangka and a target state of charge, wherein the current operation condition comprises a full-load climbing condition, a slope top unloading condition, an idle descending condition and a slope bottom loading condition; The energy management control module is used for controlling the range extender to supplement power for the power battery and supply power for the driving motor at the same time after determining that the range extender ore card is positioned in the unloading working condition of the slope top, and controlling the actual state of charge of the power battery to be maintained in a preset target state of charge range of the slope top; The energy management control module is also used for controlling the power battery to conduct dominant power supply after determining that the range-extending ore card is in the loading working condition of the slope bottom, and simultaneously controlling the actual state of charge of the power battery to be maintained within a preset target state of charge range of the slope bottom; When the range extender supplies power, the range extender is controlled to operate in a preset high-efficiency interval based on a power generation efficiency curve of the range extender.
9. An add Cheng Kuangka energy management control device, the add Cheng Kuangka energy management control device comprising: and a memory communicatively coupled to the at least one processor, wherein the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the up Cheng Kuangka energy management control method of any one of claims 1-7.
10. An add-on Cheng Kuangka comprising the add-on Cheng Kuangka energy management control device of claim 9.

Description

Cheng Kuangka energy management control method, device and equipment and Cheng Kuangka Technical Field The invention relates to the technical field of Cheng Kuang cards, in particular to a Cheng Kuangka energy management control method, a device and equipment and Cheng Kuangka. Background Extended range mining trucks are key transportation equipment in mining and have distinct cycle characteristics in the mode of loading a load at the pit bottom, then climbing a heavy load to the pit top, unloading the load at the pit top, and finally returning the load down the slope to the pit bottom. In the circulating operation, the intelligent management of the vehicle energy is important to ensuring the operation reliability and reducing the fuel consumption. In the prior art, a scheme is attempted to plan a State of Charge (SOC) of a battery of Cheng Kuangka, namely, based on information such as the SOC of a starting point and a terminal point, a total driving distance, a real-time gradient and the like, calculating an SOC change rate, determining a target SOC value and further controlling a range extender to generate power. However, the prior art scheme has the obvious defects of insufficient robustness and over-dependence on the sensor, namely that the SOC planning strategy of the prior art scheme is seriously dependent on real-time data of a high-precision gradient sensor and a load sensor. Under severe and complex working conditions of mines, the sensors are easy to interfere, malfunction or drift, and once sensor signals fail or are out of alignment, the performance of the SOC planning strategy is directly reduced or even completely fails, so that the normal operation of the vehicle is affected. The scheme mainly carries out feedback correction according to simple deviation between the current SOC and a preset target SOC when adjusting the power generated by the range extender. Although the method can achieve the basic energy balance goal, the high-efficiency working range of the range extender is not incorporated into the control logic, and the range extender can not be ensured to always operate in the optimal fuel economy area, so that the overall energy efficiency of the system is sacrificed, and the operation cost is increased. Therefore, there is an urgent need for an energy management method that does not depend on specific external sensors and that can achieve both system robustness, fuel economy, and increase Cheng Kuangka in power generation efficiency. Disclosure of Invention The invention provides a Cheng Kuangka-added energy management control method, a Cheng Kuangka-added energy management control device and a Cheng Kuangka-added energy management control method, which can give consideration to system robustness, fuel economy and power generation efficiency under the condition of not depending on a specific external sensor. In a first aspect, an embodiment of the present invention provides a method for controlling power management of Cheng Kuangka, including: Determining the current working conditions of the increment Cheng Kuangka according to the change trend of the actual state of charge of the increment Cheng Kuangka and a target state of charge, wherein the current working conditions comprise a full-load climbing working condition, a slope top unloading working condition, an idle descending working condition and a slope bottom loading working condition; After the extended-range ore card is determined to be in the unloading working condition of the slope top, controlling an extended-range device to supplement power for a power battery and supply power for a driving motor, and simultaneously controlling the actual state of charge of the power battery to be maintained within a preset target state of charge range of the slope top; after the extended-range ore card is determined to be in the loading working condition of the slope bottom, controlling the power battery to conduct dominant power supply, and simultaneously controlling the actual state of charge of the power battery to be maintained within a preset target state of charge range of the slope bottom; When the range extender supplies power, the range extender is controlled to operate in a preset high-efficiency interval based on a power generation efficiency curve of the range extender. Optionally, determining the current working condition of the increment Cheng Kuangka according to the change trend of the actual state of charge of the increment Cheng Kuangka and the target state of charge includes: When the actual state of charge is detected to be continuously reduced and lower than the target state of charge at the bottom of the slope, determining that the range-extended mine card is in the full-load climbing working condition; When the actual state of charge is detected not to decrease any more and starts to rise, determining that the range-extending ore card is in the slope top unloading working condition; When the actual state of charge