CN104670218A - Multi-energy comprehensive control method of hierarchical structure of series-parallel hybrid system - Google Patents
Multi-energy comprehensive control method of hierarchical structure of series-parallel hybrid system Download PDFInfo
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- CN104670218A CN104670218A CN201410809044.9A CN201410809044A CN104670218A CN 104670218 A CN104670218 A CN 104670218A CN 201410809044 A CN201410809044 A CN 201410809044A CN 104670218 A CN104670218 A CN 104670218A
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- 230000008569 process Effects 0.000 claims abstract description 15
- 239000010410 layer Substances 0.000 claims description 17
- 239000011229 interlayer Substances 0.000 claims description 16
- 230000008859 change Effects 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000011217 control strategy Methods 0.000 claims description 3
- 238000005315 distribution function Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 238000003908 quality control method Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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Classifications
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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
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
-
- 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
-
- 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
-
- 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
- B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
-
- 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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/182—Selecting between different operative modes, e.g. comfort and performance modes
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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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/188—Controlling power parameters of the driveline, e.g. determining the required power
-
- 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
-
- 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
- B60W2710/086—Power
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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
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a multi-energy comprehensive control method of a hierarchical structure of a series-parallel hybrid system and relates to the field of series-parallel hybrid systems. The hierarchical structure comprises a decision layer, an intermediate layer and a servo layer; the decision layer is used for judging a driver' intention according to an accelerator pedal position, a shift lever signal and other related messages, determining total demanded drive power, and setting a hybrid system control mode, with which a switching strategy determines the driver's demands, according to a control mode; the intermediate layer distributes the total demanded drive power to power parts according to the related messages and determines expected running states of the power parts; each expected running state refers to a stable state expected under current total power demand, namely a steady state control target; the servo layer, also a parts layer, operates according to the steady state control targets of the power parts and system control quality demands. The method has the advantages that control logic is simpler and clearer and optimal configuration of power flow and the quality control demand on a dynamic process are both considered.
Description
Technical field
What the present invention relates to is series-parallel hybrid electric system field, is specifically related to a kind of series-parallel hybrid electric system hierarchy multiple-energy-source integrated control method;
Background technology
Series-parallel hybrid electric system is made up of parts such as driving engine, electrical motor, electrical generator, power coupling arrangements, automatic transmission with hydraulic torque converter and retarders, with meet heavy-duty vehicle drive high-power with large torque etc. demand; Engine power is shunted through power coupling arrangements, and a road passes to electrical generator and generates electricity, transmit after a road direction into after master clutch and output power of motor converge; Through automatic transmission with hydraulic torque converter and the running of retarder rear drive wheel; Power coupling arrangements realizes the shunting of power and confluxes; Because the heavy-duty vehicle such as tractor truck, cross-country car demand torque is comparatively large, so system also comprises one three gear automatic machincal transmission; Master clutch not in conjunction with time, the pure electric drive of vehicle can be realized by electrical motor; Electrical generator can be used as starter motor and uses, and is used for start the engine;
Because series-parallel hybrid electric system comprises multiple control subsystem, each subsystem cooperation work, could realize hybrid power system function and the index such as economy, dynamic property; How to realize the main task that the energy management of multiple-energy-source and each subsystem controls are general controller, in control mode switch and shift process, control each associated components co-ordination have significant impact to Systematical control quality, also be the prerequisite that power management logic realizes, this function is also realized by general controller;
Summary of the invention
For the deficiency that prior art exists, the present invention seeks to be to provide a kind of series-parallel hybrid electric system hierarchy multiple-energy-source integrated control method, make control logic more simple and clear, clear, take into account the quality control requirement with dynamic process of distributing rationally of poower flow simultaneously.
To achieve these goals, the present invention realizes by the following technical solutions: series-parallel hybrid electric system hierarchy, and it comprises decision-making level, interlayer and servo layer; Decision-making level is also referred to as system layer, driver intention is judged according to throttle (or braking) pedal position, shift handle signal and other relevant information, determine to drive (or braking) power aggregate demand, determine the hybrid power system master mode of operator demand according to master mode setting and switchover policy;
Aggregate demand power is carried out power division according to relevant information by interlayer between each power component, determines the mode of operation that each parts are expected; This mode of operation refers to the stabilized conditions of expecting under current total power demand, i.e. stable state control objectives;
Servo layer also can be described as component layer, according to stable state control objectives and the Systematical control quality requirements of each parts (or executive component), arrives the dynamic process of steady-state target according to certain logical design, calculates the Instantaneous Control target of current sample time; Then control command is sent to corresponding component by CAN or driving circuit;
Decision-making level mainly carrys out dividing system mode of operation; In general hybrid power control policy, system operating mode is divided into pure electronic, driving engine drives separately, engine drive and generate electricity, engine motor combination drive, braking etc., actual hybrid power system also works in these modes really; But consider and make to determine that logic is more concisely clear, system control model simplifies by system decision-making layer in this article; In decision-making level, system control model is divided into several simple modes such as pure electronic, engine starting, combination drive, braking, reversing, stopping for charging, does not distinguish the specific works state of electrical motor, electrical generator during engine operation; When interlayer determining means stable state control objectives, just according to result of calculation, component pattern is defined accurately, such as motor requirement torque target value positive and negative, zero, the system of determining be operated in engine motor combination drive, engine drive and generating or the independent drive pattern of driving engine; System control model is the equal of jointly completed by the decision-making level of hierarchy integrated control method and interlayer, this simplifies system control model and determines rule and Comprehensive Control logic;
Interlayer completes energy management and distribution function; At damped condition, power, according to B.P. demand, distributes by integrated control strategy between power of motor and mechanical horsepower, and rule is: under low rate of braking, preferentially adopt motor braking, carries out Brake energy recovery; When middle high rate of braking, adopt dynamo-electric braking in parallel, motor carries out brake boost;
Beneficial effect of the present invention: hybrid power control logic is divided into decision-making level, interlayer and servo layer by the present invention; The stratified energy mechanism method of control policy, makes control logic more simple and clear, clear, has taken into account the quality control requirement with dynamic process of distributing rationally of poower flow simultaneously;
Accompanying drawing explanation
The present invention is described in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present invention;
Detailed description of the invention
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with detailed description of the invention, setting forth the present invention further;
With reference to Fig. 1, this detailed description of the invention by the following technical solutions: series-parallel hybrid electric system hierarchy, it comprises decision-making level, interlayer and servo layer; Decision-making level is also referred to as system layer, driver intention is judged according to throttle (or braking) pedal position, shift handle signal and other relevant information, determine to drive (or braking) power aggregate demand, determine the hybrid power system master mode of operator demand according to master mode setting and switchover policy;
Aggregate demand power is carried out power division according to relevant information by interlayer between each power component, determines the mode of operation that each parts are expected; This mode of operation refers to the stabilized conditions of expecting under current total power demand, i.e. stable state control objectives;
Servo layer also can be described as component layer, according to stable state control objectives and the Systematical control quality requirements of each parts (or executive component), arrives the dynamic process of steady-state target according to certain logical design, calculates the Instantaneous Control target of current sample time; Then control command is sent to corresponding component by CAN or driving circuit;
Decision-making level mainly carrys out dividing system mode of operation; In general hybrid power control policy, system operating mode is divided into pure electronic, driving engine drives separately, engine drive and generate electricity, engine motor combination drive, braking etc., actual hybrid power system also works in these modes really; But consider and make to determine that logic is more concisely clear, system control model simplifies by system decision-making layer in this article; In decision-making level, system control model is divided into several simple modes such as pure electronic, engine starting, combination drive, braking, reversing, stopping for charging, does not distinguish the specific works state of electrical motor, electrical generator during engine operation; When interlayer determining means stable state control objectives, just according to result of calculation, component pattern is defined accurately, such as motor requirement torque target value positive and negative, zero, the system of determining be operated in engine motor combination drive, engine drive and generating or the independent drive pattern of driving engine; System control model is the equal of jointly completed by the decision-making level of hierarchy integrated control method and interlayer, this simplifies system control model and determines rule and Comprehensive Control logic;
Interlayer completes energy management and distribution function; At damped condition, power, according to B.P. demand, distributes by integrated control strategy between power of motor and mechanical horsepower, and rule is: under low rate of braking, preferentially adopt motor braking, carries out Brake energy recovery; When middle high rate of braking, adopt dynamo-electric braking in parallel, motor carries out brake boost;
Described servo layer carries out dynamic process cooperation control; Dynamic process comprises two kinds: a kind of is master mode or gear handoff procedure; The change procedure by a relatively large margin of the another kind of parts rotating speed of target that causes for aggregate demand changed power, master mode or gear switching etc. or torque; By arriving the dynamic process of steady-state target according to certain logical design, under the prerequisite ensureing governing speed, reduce rotating speed or torque sudden change, thus reduction change procedure impacts, protection system parts; Dynamic process traffic signal coordination comprises: master clutch engages speed governing algorithm, gearshift speed governing algorithm and each component speed/torque rate of change limit algorithm;
More than show and describe groundwork of the present invention and principal character and advantage of the present invention; The technical personnel of the industry should be understood, the present invention is not restricted to the described embodiments, what describe in above-described embodiment and specification sheets just illustrates principle of the present invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention; Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (2)
1. series-parallel hybrid electric system hierarchy, is characterized in that, it comprises decision-making level, interlayer and servo layer;
Decision-making level is also referred to as system layer, driver intention is judged according to accelerator pedal position, shift handle signal and other relevant information, determine driving power aggregate demand, determine the hybrid power system master mode of operator demand according to master mode setting and switchover policy;
Aggregate demand power is carried out power division according to relevant information by interlayer between each power component, determines the mode of operation that each parts are expected; This mode of operation refers to the stabilized conditions of expecting under current total power demand, i.e. stable state control objectives;
Servo layer also can be described as component layer, according to stable state control objectives and the Systematical control quality requirements of each parts, arrives the dynamic process of steady-state target according to certain logical design, calculates the Instantaneous Control target of current sample time; Then control command is sent to corresponding component by CAN or driving circuit.
2. series-parallel hybrid electric system hierarchy multiple-energy-source integrated control method according to claim 1, it is characterized in that, its method is: (1), in decision-making level, system control model is divided into several simple modes such as pure electronic, engine starting, combination drive, braking, reversing, stopping for charging, does not distinguish the specific works state of electrical motor, electrical generator during engine operation; (2), when interlayer determining means stable state control objectives, just according to result of calculation, component pattern is defined accurately, such as motor requirement torque target value positive and negative, zero, the system of determining be operated in engine motor combination drive, engine drive and generating or the independent drive pattern of driving engine; System control model is the equal of jointly completed by the decision-making level of hierarchy integrated control method and interlayer, simplifies system control model and determines rule and Comprehensive Control logic; Described interlayer completes energy management and distribution function; At damped condition, power, according to B.P. demand, distributes by integrated control strategy between power of motor and mechanical horsepower, and rule is: under low rate of braking, preferentially adopt motor braking, carries out Brake energy recovery; When middle high rate of braking, adopt dynamo-electric braking in parallel, motor carries out brake boost; (3), described servo layer carries out dynamic process cooperation control; Dynamic process comprises two kinds: a kind of is master mode or gear handoff procedure; The change procedure by a relatively large margin of the another kind of parts rotating speed of target that causes for aggregate demand changed power, master mode or gear switching etc. or torque: by arriving the dynamic process of steady-state target according to certain logical design, under the prerequisite ensureing governing speed, reduce rotating speed or torque sudden change, thus reduce change procedure impact, protection system parts; Dynamic process traffic signal coordination comprises: master clutch engages speed governing algorithm, gearshift speed governing algorithm and each component speed/torque rate of change limit algorithm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107290968A (en) * | 2017-08-22 | 2017-10-24 | 南京南瑞继保电气有限公司 | A kind of coordinating and optimizing control method for integrated energy system of providing multiple forms of energy to complement each other |
| CN107685732A (en) * | 2016-08-03 | 2018-02-13 | 神华集团有限责任公司 | Automotive power output power control method and control system |
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| CN107685732A (en) * | 2016-08-03 | 2018-02-13 | 神华集团有限责任公司 | Automotive power output power control method and control system |
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