WO2024045321A1 - 一种面向增程式电传动矿用卡车的能量输出控制方法及系统 - Google Patents
一种面向增程式电传动矿用卡车的能量输出控制方法及系统 Download PDFInfo
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- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/15—Control strategies specially adapted for achieving a particular effect
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/20—Control strategies involving selection of hybrid configuration, e.g. selection between series or parallel configuration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/244—Charge state
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
- B60W2520/105—Longitudinal acceleration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0677—Engine power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/10—Change speed gearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/24—Energy storage means
- B60W2710/242—Energy storage means for electrical energy
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- 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
- Y02T10/62—Hybrid vehicles
Definitions
- the patent of this invention relates to an energy output control method and system for extended-range electric transmission mining trucks, and belongs to the field of new energy.
- the typical energy output control strategies that have been proposed for extended-range electric transmission vehicles are mainly divided into two categories: rule-based energy output control strategies and optimization-based energy output control strategies.
- Different energy output control strategies have different energy consumption optimization effects. same.
- the rule-based energy output control strategy has clear control logic, fast calculation speed, and good real-time performance, but the optimization effect of energy consumption is highly dependent on expert experience.
- Energy output control strategies based on optimization mainly include offline optimal strategies and real-time optimization strategies.
- the offline optimal strategy can achieve global energy optimization, it requires a large amount of calculation and requires accurate knowledge of the vehicle's global operating status information in advance. It is difficult to directly implant the controller into the controller for engineering application.
- the real-time optimization strategy has been proposed, Online energy output control can be achieved, but it still requires the use of complex optimization algorithms for iterative calculations, which increases the difficulty of implementing the strategy.
- the purpose of the present invention is to overcome the deficiencies in the prior art and provide an energy output control method and system for extended-range electric transmission mining trucks, so as to achieve the performance of the entire vehicle under complex working conditions while satisfying the power requirements. Consumption is adjusted in real time.
- the present invention provides an energy output control method for an extended-range electric transmission mining truck.
- the driving motor of the mining truck is driven by an engine and/or a driving battery; it is characterized in that the control method Includes the following steps:
- the system status parameters at least include vehicle speed v, vehicle acceleration a and the battery storage value SOC of the driving battery;
- the output power of the engine is controlled according to the calculated output power Pe of the engine, and the output power of the driving battery is controlled according to the output power Pb of the driving battery.
- the pre-stored system parameters at least include vehicle mass, gravity acceleration, rolling resistance coefficient, road gradient, air density, wind resistance coefficient, windward area and rotational mass conversion coefficient;
- eta t is the efficiency of the entire powertrain, and the driving force F t is expressed as:
- m is the mass of the vehicle
- g is the acceleration of gravity
- f is the rolling resistance coefficient
- ⁇ is the road slope
- ⁇ is the air density
- C d is the wind resistance coefficient
- A is the windward area
- s is the rotational mass conversion coefficient
- the engine output power Pe and the driving battery output power P b are calculated, including:
- the energy recovery mode is entered to charge the driving battery; otherwise, the energy is consumed through mechanical braking or resistor grid. Disperse.
- the engine output power Pe and the driving battery output power P b are determined according to the working mode, including:
- the "engine-generator set optimal power-efficiency mode" characteristic curve is fitted.
- controlling the control output of the engine according to the calculated engine output power, and controlling the driving battery output according to the driving battery output power includes:
- the control drive assembly controls the output torque of the drive motor according to the output power of the engine and the output power of the drive battery. After the gearbox changes speed and torque is increased, the driving system works normally.
- the present invention proposes an energy control system for extended-range electric transmission mining trucks, including a control layer and an execution layer; the execution layer includes an engine and a driving battery;
- the control layer includes on-board data collector, demand power calculation module, energy output controller, engine controller, and BMS controller;
- the vehicle-mounted data collector is used to obtain the system status parameters of the vehicle in real time;
- the system status parameters at least include vehicle speed v, vehicle acceleration a and the battery storage value SOC of the driving battery;
- the demand power calculation module is used to calculate the demand power P d of the driving motor of the mining truck based on the obtained vehicle speed v, vehicle acceleration a and pre-stored system parameters;
- the energy output controller is used to calculate the output power Pe of the engine and the output power Pb of the driving battery based on the calculated demand power Pd and the battery storage value SOC obtained in real time;
- the engine controller is used to control the output power of the engine according to the calculated output power P e of the engine;
- the BMS controller is used to control the output power of the driving battery according to the output power P b of the driving battery.
- execution layer also includes generators, rectifiers, inverters, drive assemblies and gearboxes;
- the engine is directly connected to the generator;
- the generator converts the mechanical energy generated by the engine into electrical energy, and rectifies it through the rectifier and inverts it through the inverter to make the drive assembly work and charge the drive battery;
- the drive assembly includes a drive motor controller and a drive motor.
- the drive motor controller is connected to the BMS controller.
- the drive motor outputs drive torque according to the command signal of the drive motor controller to control the operation of the gearbox.
- the execution layer also includes a resistance gate and a switch for controlling the resistance gate
- the energy output controller controls the switch to open and uses the resistor grid to dissipate the electric energy.
- the present invention calculates the engine output power and drive battery output power in real time through the vehicle speed, acceleration information and battery storage value SOC obtained in real time, and can consider the energy optimization control of the drive assembly as a whole according to the working conditions, while satisfying the power requirements. Under the premise, the energy consumption of the entire vehicle can be adjusted in real time under complex working conditions.
- the present invention proposes a "dual-mode" energy output control system and method to solve the problems in the prior art.
- the drive system is dynamically adjusted in the "engine-generator unit optimal efficiency mode" and Switching between "engine optimal fuel consumption modes” enables real-time adjustment of the vehicle's energy consumption under complex working conditions.
- the energy output control strategy designed by the present invention does not require complicated theoretical model calculations.
- the strategy parameters only need to be adapted and adjusted according to the driving battery parameters and engine parameters, which facilitates strategy transplantation and engineering application, and has good working condition adaptability and real-time performance.
- the present invention can not only control the engine to dynamically switch between the optimal fuel consumption mode and the optimal efficiency mode in real time according to the vehicle driving battery status and required power, but can also perform energy recovery without complicated theoretical model calculations and working condition adaptability. and good real-time performance.
- the strategy parameters of the present invention only need to be adapted and adjusted according to the driving battery parameters and engine parameters, which facilitates strategy transplantation and engineering application.
- the present invention adds an upper and lower hysteresis interval for the driving battery in the control strategy, including a lower limit hysteresis interval (SOC min , SOC LLC_min ) and an upper limit hysteresis interval. Return interval (SOC ULC_max , SOC max ), realize the discharge and charging buffer of the driving battery, and protect the driving battery.
- SOC min lower limit hysteresis interval
- SOC LLC_min lower limit hysteresis interval
- Return interval SOC ULC_max , SOC max
- Figure 1 is the energy output control strategy control system diagram
- Figure 2 is the system configuration diagram
- Figure 3 is a diagram of the energy output control strategy control method
- Figure 4 is a diagram of the battery storage value SOC working hysteresis interval.
- This embodiment provides an energy output control method for extended-range electric transmission mining trucks.
- the mining trucks are equipped with a driving motor, and the driving motor is powered by an engine and a driving battery; the method includes the following steps:
- the system status parameters include the vehicle speed v, the vehicle acceleration a, and the battery storage value SOC of the mining truck drive battery;
- the engine output power Pe and the driving battery output power P b are calculated;
- the output power of the engine is controlled based on the calculated engine output power, and the output power of the driving battery is controlled based on the output power of the driving battery.
- the pre-stored system parameters include vehicle mass, gravity acceleration, rolling resistance coefficient, road gradient, air density, wind resistance coefficient, windward area and rotational mass conversion coefficient; the pre-stored system parameters are generally determined by the vehicle nameplate and field test data. get.
- eta t is the efficiency of the entire powertrain, and the driving force F t is expressed as:
- m is the mass of the vehicle
- g is the acceleration of gravity
- f is the rolling resistance coefficient
- ⁇ is the road slope
- ⁇ is the air density
- C d is the wind resistance coefficient
- A is the windward area
- s is the rotational mass conversion coefficient
- the engine output power Pe and the drive battery output power P b are calculated, including:
- the present invention Based on the proposed energy control system for extended-range electric transmission mining trucks, the present invention also proposes an energy output control method as shown in Figure 3.
- the present invention adds an upper and lower limit hysteresis interval of the driving battery in the control strategy, including a lower limit hysteresis interval (SOC min , SOC LLC_min ) and an upper limit hysteresis interval. (SOC ULC_max , SOC max ), realizes the discharge and charging buffer of the driving battery, and protects the driving battery, as shown in Figure 4.
- the specific steps of the control method proposed by the present invention are as follows:
- different working modes are determined based on the calculated drive motor demand power P d and the currently obtained battery storage value SOC, including:
- the energy recovery mode is entered to charge the driving battery; otherwise, the energy is consumed through mechanical braking or resistor grid. Disperse.
- the engine output power Pe and the driving battery output power P b are determined according to the working mode, including:
- the "engine-generator set optimal power-efficiency mode" characteristic curve is fitted.
- the "engine optimal power-fuel consumption mode" characteristic curve is fitted.
- control output of the engine is controlled according to the calculated engine output power
- driving battery output is controlled according to the driving battery output power
- the control drive assembly accurately controls the output torque of the drive motor according to the output power of the engine and the output power of the drive battery. After the gearbox changes speed and torque is increased, the driving system works normally.
- the drive system is dynamically adjusted in the "engine-generator unit optimal efficiency mode" and Switching between "engine optimal fuel consumption modes” enables real-time adjustment of the vehicle's energy consumption under complex working conditions.
- the present invention adds an upper and lower limit hysteresis interval of the driving battery in the control strategy, including a lower limit hysteresis interval (SOC min , SOC LLC_min ) and an upper limit hysteresis interval. (SOC ULC_max , SOC max ), realizes the discharge and charging buffer of the driving battery, and protects the driving battery.
- the energy control system proposed in this embodiment for extended-range electric transmission mining trucks is shown in Figure 1 and includes a control layer and an execution layer.
- the control layer mainly includes vehicle data collector, demand power calculation module, energy output controller, engine controller, and BMS controller.
- the vehicle-mounted data collector is used to obtain the system status parameters of the vehicle in real time; the system status parameters at least include vehicle speed v, vehicle acceleration a and the battery storage value SOC of the driving battery;
- the demand power calculation module is used to calculate the vehicle speed according to the obtained vehicle speed.
- the energy output controller is used to calculate the required power P d based on the calculated demand power P d and the battery storage value SOC obtained in real time.
- the engine controller is used to control the output power of the engine according to the calculated output power P e of the engine;
- the BMS controller is used to control the output power of the engine according to the calculated output power P e of the driving battery.
- the output power P b controls the output power of the driving battery.
- the execution layer mainly includes the engine, generator, drive battery, rectifier, inverter, drive assembly, gearbox, and resistor grid.
- the corresponding complete system configuration is shown in Figure 2, in which the engine is directly connected to the generator. , there is no direct connection to the drive assembly, which greatly reduces the impact and vibration caused by sudden load changes to the engine; the generator converts the mechanical energy generated by the engine into electrical energy, and rectifies it through the rectifier and inverts it through the inverter to work on the drive assembly, and When the power demand of the driving motor is small, the driving battery is charged; the driving battery plays the role of peak shaving and valley filling. When the power is high, it works together with the generator to drive the assembly and stores the recovered energy during braking.
- the energy output controller controls the switch to open and uses the resistor grid to dissipate the kinetic energy;
- the drive assembly includes a drive motor controller and a drive motor, and the drive motor is driven according to the The command signal from the motor controller accurately outputs the driving torque to control the driving of the vehicle.
- SOC---State of Charge meaning state of charge, storage value.
- the present invention Based on the proposed energy control system for extended-range electric transmission mining trucks, the present invention also proposes an energy output control method as shown in Figure 3.
- the present invention adds an upper and lower limit hysteresis interval of the driving battery in the control strategy, including a lower limit hysteresis interval (SOC min , SOC LLC_min ) and an upper limit hysteresis interval. (SOC ULC_max , SOC max ), realizes the discharge and charging buffer of the driving battery, and protects the driving battery, as shown in Figure 4.
- the specific steps of the control method proposed by the present invention are as follows:
- Step S1 According to the operating characteristics of the engine and generator, determine the "engine-generator set optimal power-efficiency mode” characteristic curve and the "engine optimal power-fuel mode” characteristic curve;
- Step S2 Use the vehicle-mounted data collector to obtain the system status parameters of the vehicle in real time, including vehicle speed v, vehicle acceleration a, and battery storage value SOC;
- Step S3 Calculate the required power P d of the drive motor based on the acquired system status parameters, and set the engine output power to Pe and the drive battery output power to P b .
- the specific required power is calculated as follows:
- eta t is the efficiency of the entire powertrain, and the driving force F t can be expressed as:
- m is the mass of the vehicle
- g is the acceleration of gravity
- f is the rolling resistance coefficient
- ⁇ is the road slope
- ⁇ is the air density
- C d is the wind resistance coefficient
- A is the windward area
- s is the rotational mass conversion coefficient
- Step S4 Determine different working modes based on the calculated power demand P d of the drive motor and the battery storage value SOC obtained in real time, as follows:
- the energy recovery mode is entered to charge the driving battery; otherwise, the energy is consumed through mechanical braking or resistor grid. Disperse.
- Step S5 The drive assembly accurately controls the output torque of the drive motor based on the power output from the engine and drive battery. After the gearbox changes speed and increases torque, the drive system operates normally.
- the invention can not only control the engine to dynamically switch between the optimal fuel consumption mode and the optimal efficiency mode in real time according to the vehicle driving battery status and required power, but can also perform energy recovery without complicated theoretical model calculations, working condition adaptability and real-time Good sex.
- the strategy parameters of the present invention only need to be adapted and adjusted according to the driving battery parameters and engine parameters, which facilitates strategy transplantation and engineering application.
- the driving battery can also be replaced by a supercapacitor; the engine-generator set can also be replaced by a fuel-driven battery.
- the described energy output control strategy control method can not only be used for extended-range gasoline-electric hybrid vehicles, but also for multi-drive motor pure electric system configurations.
- This strategy only provides a basic description of the implementation process. All technologies based on the present invention In essence, any simple modifications, equivalent changes and modifications made to the above process still fall within the scope of this technology.
- the invention can control the engine to dynamically switch between the optimal fuel consumption mode and the optimal efficiency mode in real time according to the vehicle driving battery status and required power, ensuring that the engine always works in the high-efficiency zone.
- embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment that combines software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
- computer-usable storage media including, but not limited to, disk storage, CD-ROM, optical storage, etc.
- These computer program instructions may also be stored in a computer-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction means, the instructions
- the device implements the functions specified in a process or processes of the flowchart and/or a block or blocks of the block diagram.
- These computer program instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operating steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby executing on the computer or other programmable device.
- Instructions provide steps for implementing the functions specified in a process or processes of a flowchart diagram and/or a block or blocks of a block diagram.
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Abstract
Description
Claims (10)
- 一种面向增程式电传动矿用卡车的能量输出控制方法,所述矿用卡车的驱动电机由发动机和/或驱动电池驱动;其特征在于,所述控制方法包括以下步骤:实时获取车辆的系统状态参数;所述系统状态参数至少包括车速v、车辆加速度a和所述驱动电池的电池储电值SOC;根据获取的车速v和车辆加速度a以及预存储的系统参数计算矿用卡车的驱动电机的需求功率P d;根据计算出的需求功率P d和实时获取的电池储电值SOC,计算所述发动机的输出功率P e和所述驱动电池的输出功率P b;根据计算得到的所述发动机的输出功率P e控制所述发动机的输出功率,根据所述驱动电池的输出功率P b控制驱动电池的输出功率。
- 根据权利要求1所述的面向增程式电传动矿用卡车的能量输出控制方法,其特征在于,根据计算出的需求功率P d和实时获取的电池储电值SOC,计算所述发动机的输出功率P e和驱动电池的输出功率P b,包括:根据计算得到的驱动电机需求功率P d和当前获取的电池储电值SOC大小确定不同的工作模式,根据工作模式确定所述发动机的输出功率P e和驱动电池的输出功率P b。
- 根据权利要求3所述的面向增程式电传动矿用卡车的能量输出控制方法,其特征在于, 根据计算得到的驱动电机需求功率P d和当前获取的电池储电值SOC大小确定不同的工作模式,包括:a.当电池储电值SOC在下限值SOC min和上限值SOC max以内时:当驱动电机需求功率P d大于发动机功率上限阈值P e_max时,进入发动机和驱动电池混合驱动油耗最优模式;当驱动电机需求功率P d大于0且小于等于发动机功率上限阈值P e_max,且电池储电值SOC小于等于下限滞回值SOC LLC_min时,进入发动机单独驱动效率最优模式并为驱动电池充电;当驱动电机需求功率P d大于0且小于等于发动机功率上限阈值P e_max,电池储电值SOC大于下限滞回值SOC LLC_min,且驱动电机需求功率P d小于等于驱动电池功率上限阈值P b_max时,进入纯电模式;当驱动电机需求功率P d大于0且小于等于发动机功率上限阈值P e_max,电池储电值SOC大于下限滞回值SOC LLC_min,且驱动电机需求功率P d大于驱动电池功率上限阈值P b_max时,发动机和驱动电池混合驱动油耗最优模式;当驱动电机需求功率P d小于等于0且电池储电值SOC小于等于上限滞回值SOC ULC_max,此时进入能量回收模式,为驱动电池充电;当驱动电机需求功率P d小于等于0且电池储电值SOC大于等于上限滞回值SOC ULC_max,通过机械制动或电阻栅将电能耗散掉;b.当电池储电值SOC小于等于下限值SOC min时,驱动电池不参与工作:当驱动电机需求功率P d小于等于发动机功率上限阈值P e_max时,进入发动机单独驱动效率最优模式并为驱动电池充电;当驱动电机需求功率P d大于发动机功率上限阈值P e_max时,进入发动机单独驱动模式。
- 根据权利要求3所述的面向增程式电传动矿用卡车的能量输出控制方法,其特征在于,根据工作模式确定发动机输出功率P e和驱动电池输出功率P b,包括:获取发动机-发电机组最佳功率-效率模式特性曲线和发动机最佳功率-油耗模式特性曲线;各工作模式的发动机输出功率P e和驱动电池输出功率P b的确定方法包括:A.发动机和驱动电池混合驱动油耗最优模式:根据发动机最佳功率-燃油模式特性曲线,查表确定发动机油耗最优时对应的功率点P e_optfuel;根据油耗最优功率点确定当前发动机的转速n e_optfuel;发动机和驱动电池功率分配表示为:P e=P e_optfuel,P b=min(P d-P e_optfuel·μ g,P b_max),n e=n e_optfuel,μ g为发电机的发电效率;B.发动机单独驱动效率最优模式:在保证满足整车需求功率P d的前提下,根据发动机-发电机组最佳功率-效率模式特性曲线,寻找发动机-发电机组效率最优时对应的功率点P e_opteff;根据效率最优功率点确定当前发动机转速n e_opteff;发动机输出功率并为驱动电池充电,此时P e=P e_opteff,n e=n e_opteff;C.纯电模式:此时仅驱动电池放电,驱动电池输出功率表示为:P b=P d;D.发动机单独驱动模式:确定发动机输出最大功率P e_max;根据发动机-发电机组最佳功率-效率模式特性曲线,确定当前发动机转速n e_powermax;此时仅发动机输出功率:P e=P e_max,n e=n e_powermax。
- 一种面向增程式电传动矿用卡车的能量控制系统,其特征在于,包括控制层和执行层;所述执行层包括发动机和驱动电池;控制层包括车载数据采集器、需求功率计算模块、能量输出控制器、发动机控制器、BMS控制器;车载数据采集器用于实时获取车辆的系统状态参数;所述系统状态参数至少包括车速v、车辆加速度a和所述驱动电池的电池储电值SOC;需求功率计算模块用于根据获取的车速v和车辆加速度a以及预存储的系统参数计算矿用卡车的驱动电机的需求功率P d;能量输出控制器用于根据计算出的需求功率P d和实时获取的电池储电值SOC,计算所述发动机的输出功率P e和所述驱动电池的输出功率P b;发动机控制器用于根据计算得到的所述发动机的输出功率P e控制所述发动机的输出功率;BMS控制器用于根据所述驱动电池的输出功率P b控制驱动电池的输出功率。
- 根据权利要求8所述的面向增程式电传动矿用卡车的能量输出控制系统,其特征在于,所述执行层还包括发电机、整流器、逆变器、驱动总成和变速箱;所述发动机直接与发电机相连;发电机将发动机产生的机械能转化为电能,并通过整流器整流、逆变器逆变后使驱动总成工作,并为驱动电池充电;所述驱动总成包括驱动电机控制器和驱动电机,所述驱动电机控制器与BMS控制器连接,驱动电机根据驱动电机控制器的指令信号输出驱动扭矩来控制所述变速箱运转。
- 根据权利要求8所述的面向增程式电传动矿用卡车的能量输出控制系统,其特征在于,所述执行层还包括电阻栅和用于控制所述电阻栅的开关;当驱动电机需求功率P d小于等于0且电池储电值SOC大于等于上限滞回值SOC ULC_max时,通过能量输出控制器控制开关开启,利用电阻栅将电能耗散掉。
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