CN101890957B - Fuel/ electric hybrid multi-mode stepless speed change driving system control method - Google Patents
Fuel/ electric hybrid multi-mode stepless speed change driving system control method Download PDFInfo
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Abstract
The invention discloses a fuel/electric hybrid multi-mode stepless speed change driving system control method, which is based on a driving system comprising an engine, an engine preheater, an engine starter, a low-speed motor/generator, a high-speed motor/generator and a storage battery. The engine outputs power and is in transmission connection with a power coupling box through a clutch of the engine; the low-speed motor/generator and the high-speed motor/generator are in transmission connection with the power coupling box respectively through a low-speed clutch and a high-speed clutch; and the output shaft of the power coupling box is in transmission connection with a drive axle. The driving system also comprises an engine controller, a motor controller, a power system controller and the like. The control method for cold or hot starting, low-speed starting and running, middle and high speed running, speeding up from low speed, speeding up from high speed, parking, parking and charging, braking and speed reduction effectively modulates the working relationship between the low-speed motor/generator, the high-speed motor/generator and the engine to efficiently exert the effect of a fuel/electric power source.
Description
The field
What patent application of the present invention related to is the control method of automobile-used oil/electric hybrid drive system.
Background technology
Global energy in short supply day by day and multinationally make the exploitation of Vehicular hybrid power system and feasibility study become more and more urgent for the carbon emission reduction policy released of reply global warming, to the performance requriements of this new vehicle also more and more comprehensively and raising.Existing oil/electric hybrid drive system technology all is provided with electricity and drives propulsion source on original fuel engines basis---and electrical motor and electrical generator are common to be constituted; " high efficiency thermal machine-double-motor-step-less speed changing planetary gear system " that wherein comparatively successful Japanese Toyota Company (TOYOTA) releases just adopted this constituted mode; It has adopted the technical scheme of minimum battery; Its mode of operation is a frequent changes between motor, electrical generator and the driving engine, and control method is loaded down with trivial details, energy-saving effect is limited.Most of existing these Vehicular hybrid power drive systems by means of electrodynamic source; Only carry out simple switching and conversion work between fuel engines and the electrodynamic machines; Control method is simple; Do not building collaborative work relation between electrodynamic source and the driving engine on the technology operation method rationally and effectively; Thereby existing hybrid drive can't be to fully play driving potential under the prerequisite of purpose to cut down the consumption of energy, and in addition, most existing hybrid drives also take effective measures aspect reduction of discharging; Minority adopts also is to produce because of driving working hour that electrodynamic machines substitutes fuel engines, does not have fully to show the advantage of hybrid power aspect reduction of discharging.
Summary of the invention
The goal of the invention of patent application of the present invention is to provide a kind of oil/electric hybrid multi-mode stepless speed change driving system control method; Through using this control method to make to remain between fuel engines and electrical motor and the electrical generator in actv. operation and the synthetic operation state; Especially make fuel engines and electrical motor to move, thereby realize efficient consumption reduction, the low technical purpose of arranging of environmental protection in efficient region of operation separately.
The oil/electric hybrid multi-mode stepless speed change driving system control method that patent application of the present invention provides; Be the basis with the oil/electric hybrid multi-mode stepless speed change driving system; This oil/electric hybrid multi-mode stepless speed change driving system includes driving engine and engine preheater and engine starter; Also include the low speed dynamoelectric machine, high speed electric/electrical generator, the battery pack that low speed dynamoelectric machine and high speed electric/electrical generator is electrically connected; Driving engine and exhaust gas treating device join; Tail gas pre-heater is installed on the exhaust gas treating device, and engine output power is in transmission connection through engine clucht and power coupling case, and the low speed dynamoelectric machine is in transmission connection through low-speed clutch and power coupling case; High speed electric/electrical generator is in transmission connection through high-speed clutch and power coupling case, and the output shaft and the drive axle of power coupling case are in transmission connection; Driving engine, engine preheater and engine starter are controlled by engine controller; Low speed dynamoelectric machine, high speed electric/electrical generator and battery pack are controlled by electric machine controller; The execution circuit of power system controller connects engine controller, electric machine controller, exhaust gas treating device, power coupling case, drive axle and three-clutch; The power system controller be respectively arranged with engine inlet port and exhaust gas treating device temperature sensor bonded assembly temperature collecting cell, with battery pack bonded assembly electric quantity acquisition unit, with engine speed sensing element bonded assembly rotating speed collecting unit, with drg sensing element bonded assembly braking mode collecting unit; Gather respectively and carry out temperature detection, the detection of battery pack electric weight, rotating speed or acceleration detection and speed of a motor vehicle detection, its control method is:
1., cold or hot start:
Send, detect electric weight and the engine inlet port and the exhaust gas treating device temperature value of battery pack by the collection of power system controller, change; Judge whether the battery pack electric weight reaches the storage battery lower limit that sets; If the battery pack electric weight surpasses storage battery lower limit charge value; And when engine inlet port and exhaust gas treating device temperature value also are lower than the temperature threshold value of setting respectively; Send the work execution command to engine controller and exhaust gas treating device controller, carry out preheating work by engine preheater and tail gas pre-heater; If the battery pack electric weight is lower than storage battery lower limit charge value; And when engine inlet port and exhaust gas treating device temperature value also are lower than the lowest temperature value of setting; Power system controller start the engine, be that battery pack replenishes electric weight, and continue to detect and judge the battery pack electric weight by engine drives one electrical generator;
2., low speed starts and goes:
The battery pack electric weight is sent, detects in the collection of power system controller, change; Judge whether the battery pack electric weight reaches the storage battery lower limit that sets; If the battery pack electric weight surpasses the storage battery lower limit; The power system controller sends execution command to electric machine controller, and starting low speed dynamoelectric machine drives drive axle through power coupling case; If the battery pack electric weight is lower than the storage battery lower limit; The power system controller sends execution command to engine controller; Dally to desirable rotating speed by the engine starter fire an engine; Driving high speed electric/electrical generator is that battery pack replenishes electric weight, is that low-speed motor driving operation provides working power by battery pack again;
3., middle and high speed is gone
The electric weight of battery pack is sent, detects in the collection of power system controller, change; Judge whether the battery pack electric weight reaches the storage battery lower limit that sets; If the battery pack electric weight surpasses the storage battery lower limit; The power system controller sends execution command to electric machine controller, by high speed electric/generator drive vehicle operating; If the battery pack electric weight is lower than the storage battery lower limit; Send execution command by the power system controller to engine controller; Drive engine air by engine starter and go to setting rotating speed rear drive working engine controller fire an engine starter; Start after driving racing of the engine to desirable rotating speed, when the speed of a motor vehicle reach directly drive speed after, promptly reach efficient, anti-emission carburetor operation area scope in universal characteristic curve of engine and the emissions profile; Then the power system controller sends execution command to engine controller, by the vehicle operating of driving engine direct drive; Reach when directly driving speed at speed of a motor vehicle end, the power system controller sends execution command to engine controller, is that battery pack replenishes generating by engine drives low speed dynamoelectric machine;
4., give it the gun by low speed
The power system controller receives assisted instruction, at first detects the electric weight of battery pack, judges whether the battery pack electric weight reaches the storage battery lower limit that sets; If the battery pack electric weight surpasses the storage battery lower limit, the power system controller sends execution command to electric machine controller, by low speed dynamoelectric machine driving work; And detect under the low speed dynamoelectric machine drives whether reach the acceleration demand; If in the time of still can't satisfying the acceleration demand, then the power system controller sends execution command to electric machine controller, participate in driving work by high speed electric/electrical generator; And continuation detects the acceleration demand that whether reaches; If in the time of still can't satisfying the acceleration demand, then the power system controller sends execution command to engine controller, by driving engine and low speed dynamoelectric machine and high speed electric/electrical generator driven in common work; If accumulator electric-quantity does not reach the storage battery lower limit; The power system controller sends execution command to engine controller, is that battery pack replenishes electric weight by engine drive high speed electric/electrical generator, and is that low speed dynamoelectric machine driving work provides power supply by battery pack; Detect again under the low speed dynamoelectric machine drives and whether satisfy the acceleration demand; If in the time of can't satisfying, then send execution command to engine controller, fire an engine drives;
5., by giving it the gun at a high speed
The power system controller receives assisted instruction, at first detects the electric weight of battery pack, judges whether the battery pack electric weight reaches the storage battery lower limit that sets; If the battery pack electric weight surpasses the storage battery lower limit, the power system controller sends execution command to electric machine controller, by high speed electric/generator drive work; And whether detection reaches the acceleration demand under high speed electric/generator drive; If in the time of still can't satisfying this acceleration demand, the power system controller sends execution command to engine controller, participates in driving work by driving engine; And continuation detects the acceleration demand that whether reaches; If in the time of still can't satisfying this acceleration demand, the power system controller sends execution command to engine controller, by low speed dynamoelectric machine and driving engine and high speed electric/electrical generator fellowship driving work; If the battery pack electric weight does not reach the storage battery lower limit; The power system controller sends execution command to engine controller, is that battery pack replenishes electric weight by engine drive low speed dynamoelectric machine, is that high speed electric/generator drive work provides power supply by battery pack; And detect high speed electric/generator drive and whether satisfy the acceleration demand; If in the time of can't satisfying, then the power system controller sends execution command to engine controller, participate in driving work by driving engine;
6., Parking
It is behind zero the Parking state that the dynamical system controller detects the speed of a motor vehicle; Detect the batteries electric weight and whether reach the battery lower limit that sets; If the batteries electric weight does not surpass the battery lower limit; The dynamical system controller sends execution command to engine controller; Pilot engine by engine starter and to drive generator for electricity generation work; Replenish the batteries electric weight, or send execution command, outwards power supply by the dynamical system controller;
7., Parking charging
It is behind zero the Parking state that the power system controller detects the speed of a motor vehicle; Whether the electric weight that detects battery pack reaches the limit of the battery pack electric weight that sets; If the battery pack electric weight does not surpass the limit of battery pack electric weight; And when the power system controller had detected the input of net electricity, the instruction of power system controller was carried out, and is battery charging;
8., braking and deceleration naturally
Braking and when deceleration naturally; Drive high speed electric/generator for electricity generation work by drive axle through power coupling case; Whether detect the battery pack electric weight simultaneously reaches the accumulator pole limit value that sets and whether reaches the requirement of the braking speed of a motor vehicle; If when the battery pack electric weight was lower than the accumulator pole limit value and does not also reach speed of a motor vehicle braking requirement, the power system controller sent execution command, drive high speed electric/electrical generator and low speed dynamoelectric machine generating work simultaneously through power coupling case by drive axle; If detect when not reaching speed of a motor vehicle braking requirement yet and battery pack electric weight when also not being higher than the accumulator pole limit value that sets, then starting friction stop mechanism fellowship is accomplished braking.
Driving engine desired speed described in the present technique scheme is to take all factors into consideration engine efficiency and discharging and a definite range of speed, when driving engine moves in this scope, its heat efficiency near peak, discharging near minimum; Engine inlet port and exhaust gas treating device temperature threshold value are the normal working temperature values of engine fuel complete gasification and exhaust gas treating device; The storage battery lower limit is not influence the storage battery minimum charge value of battery pack in service life; The accumulator pole limit value is the highest capacity value of battery pack.
The technical scheme of the oil/electric hybrid multi-mode stepless speed change driving system control method that application of the present invention provides; Optimize to greatest extent and coordinate driving engine, electrical motor operational energy efficiency scope, and coordinate, give full play to the operating characteristic of driving engine and electrical motor with the working phase of electrical generator; Make driving engine avoid fall-back state; And in efficient and high-load operation zone, drive operation, and particularly in high-speed cruising, directly bring into play the efficient of its this moment and anti-emission carburetor running characteristic by engine drive work, actv. allotment low speed dynamoelectric machine, high speed electric/electrical generator are mended the work relationship of replacing or generating electricity additional electric weight with driving engine under other running state; Performance oil/electrodynamic source is renderd a service; The rideability of the vehicle with this oil/electric hybrid multi-mode stepless speed change driving system is improved, is satisfying under the prerequisite of power demand, reduce discharging to greatest extent; Antagonistic force when braking force then biases toward by the generator for electricity generation state provides; Its braking effect is then more steady and effective, has enlarged the operating range of electrical motor and battery pack, thereby reaches the technical purpose that cuts down the consumption of energy with emission abatement.In addition, cancelled the loaded down with trivial details structure setting of change speed gear box in this oil/electric hybrid multi-mode stepless speed change driving system, comprehensive technological means has realized infinite variable speed technical purpose.
Description of drawings
Fig. 1 is system's composition diagram of this oil/electric hybrid multi-mode stepless speed change driving system
Fig. 2 is the electric control structure figure of this oil/electric hybrid multi-mode stepless speed change driving system control method
Fig. 3 is the structure principle chart of power coupler
Fig. 4 is universal characteristic curve of engine figure figure
Fig. 5 to Figure 12 is respectively the programming control block diagram of each state in this oil/electric hybrid multi-mode stepless speed change driving system control method.
The specific embodiment
The disclosed oil/electric hybrid multi-mode stepless speed change driving system control method of patent application of the present invention; Be based on like Fig. 1, oil/electric hybrid multi-mode stepless speed change driving system shown in Figure 2 and realize; This oil/electric hybrid multi-mode stepless speed change driving system includes driving engine 1 and engine preheater 3, engine starter 2; Also include low speed dynamoelectric machine 10, high speed electric/electrical generator 11, the battery pack 15 that low speed dynamoelectric machine and high speed electric/electrical generator is electrically connected; Driving engine 1 joins with exhaust gas treating device 4; Tail gas pre-heater 5 is installed on the exhaust gas treating device 4, and driving engine 1 outputting power is in transmission connection through engine clucht 6 and power coupling case 7, and low speed dynamoelectric machine 10 is in transmission connection through low-speed clutch 8 and power coupling case 7; High speed electric/electrical generator 11 is in transmission connection through high-speed clutch 9 and power coupling case 7, and the output shaft 12 of power coupling case is in transmission connection with drive axle 13; Driving engine 1, engine preheater 3 and engine starter 2 are controlled by engine controller 16; Low speed dynamoelectric machine 10, high speed electric/electrical generator 11 and battery pack 15 are controlled by electric machine controller 14; Tail gas pre-heater 5 is controlled by exhaust gas treating device controller 17 with exhaust gas treating device 4; Power system controller 18 instruction execution circuitries connect engine controller 16, electric machine controller 14, exhaust gas treating device controller 17, power coupling case 7, drive axle 13 and above-mentioned three power- transfer clutchs 6,8,9; Power system controller 18 be connected with respectively sensing engine inlet port temperature and vent gas treatment actuator temperature temperature collecting cell, with battery pack 15 bonded assembly electric quantity acquisition unit, with driving engine 1 revolution speed sensing parts bonded assembly rotating speed collecting unit, with drive axle 13 bonded assembly speed data collection unit, carry out temperature detection, the detection of battery pack electric weight, rotating speed or acceleration detection and braking mode respectively and detect.
Above-mentioned power coupling case 7 is a kind of anchor shaft and the fixing change-speed box of reduction ratio; Its structure is as shown in Figure 3; It includes driving engine universal driving shaft 75, low speed dynamoelectric machine input shaft 77, high speed electric/electrical generator input shaft 72; Driving engine universal driving shaft 75 is connected with engine output shaft through engine clucht 6; Low speed dynamoelectric machine input shaft 77 connects through 10 of low-speed shaft coupler 78 and low speed dynamoelectric machines; High speed electric/electrical generator input shaft 72 connects through 11 of high speed coupler 73 and high speed electric/electrical generators, and the low gear 79 that key is connected in low speed dynamoelectric machine input shaft 77 is arranged at low gear 74 engagements on the motivity universal driving shaft 75 with empty cover, realizes deceleration transmission; The slide key guiding is arranged at the low speed tooth cover 710 of driving engine universal driving shaft 75 by low-speed clutch 8 controls, realizes the engagement clutch with low gear 4; High speed transmission gear 71 on high speed electric/electrical generator input shaft 72 and 712 engagements of the high speed transmission gear on the engine output shaft 713; Realize the high speed transmission; The slide key guiding is arranged at the high speed tooth cover 711 of driving engine universal driving shaft 75 by high-speed clutch 9 controls, realizes the engagement clutch with high speed transmission gear 712; Engine clucht 6, low-speed clutch 8 and high-speed clutch 9 are by the corresponding air cylinder driven control of power system controller 18 instructions clutch operation.
This oil/electric hybrid multi-mode stepless speed change driving system control method, its method is:
When hot and cold starting, because the engine inlet port temperature is lower, the fuel oil that sprays into can not fully gasify, and the vent gas treatment actuator temperature is lower than its normal working temperature, can cause pernicious gas to discharge in a large number.Therefore, must avoid fire an engine under the offhand situation as far as possible.
Need when cold start or hot start; Flow chart as shown in Figure 5; Gather, become the temperature sense value of the electric weight, driving engine 1 admission port and the exhaust gas treating device that send, detect battery pack 15 by power system controller 18; Judge at first whether battery pack 15 electric weight reach the storage battery lower limit that is suitable for cold or hot start at least that sets; If battery pack 15 electric weight surpass the storage battery lower limit; And when engine inlet port and vent gas treatment actuator temperature also are lower than the temperature threshold value of setting respectively, then by power system controller 18 to engine controller 16, further send the work execution command to the temperature booster 5 of engine preheater 3 and exhaust gas treating device, implement preheating work; If battery pack 15 electric weight are lower than the storage battery lower limit; And when engine inlet port and exhaust gas treating device temperature value also are lower than the temperature threshold value of setting; After power system controller start the engine starter 2 drives driving engine 1 idle running to desirable rotating speed; Drive high speed electric/electrical generator 11 again and replenish electric weight for battery pack 15, start the engine temperature booster 3 and exhaust gas treating device temperature booster 5 are implemented preheating work simultaneously;
2., low speed starts and goes:
When starting and low speed driving, the oil consumption of driving engine is high and discharging is poor, and motor then can efficiently move, and therefore will avoid engine drive as far as possible.Flow chart as shown in Figure 6; The electric weight that send, detects battery pack 15 is gathered, become to power system controller 18; Judge whether the battery pack electric weight reaches the storage battery lower limit that sets; If battery pack 15 electric weight surpass the storage battery lower limit, power system controller 18 instruction electric machine controllers 14 and low-speed clutch 8, starting low speed dynamoelectric machine 10 drives drive axle 13 through power coupling case; Whether detection of engine admission port and vent gas treatment actuator temperature are lower than the temperature threshold value of setting simultaneously; If when being lower than, then the power system controller sends the work execution command to engine controller 16, carries out preheating work by the temperature booster 5 of engine preheater 3 and exhaust gas treating device; If battery pack 15 electric weight are lower than the storage battery lower limit; Power system controller detection of engine 1 mode of operation; If start behind racing of the engine to the desirable rotating speed; By engine drives high speed electric/electrical generator 11 is that battery pack 15 replenishes electric weight, for low speed dynamoelectric machine 10 the driving working power is provided by battery pack 15 again, is moved by low speed dynamoelectric machine 10 powered vehicle.
3., middle and high speed is gone
Because engine high-efficiency, anti-emission carburetor zone are narrower, the high speed electric/electrical generator in the native system can be through its revolution ratio of adjustment in the efficient operation in middle and high speed zone, so should use motor-driven to guarantee efficient and anti-emission carburetor as far as possible.Flow chart as shown in Figure 7; The electric weight that send, detects battery pack 15 is gathered, become to power system controller 18; Judge whether battery pack 15 electric weight reach the storage battery lower limit that sets, if battery pack 15 electric weight surpass the storage battery lower limit, power system controller 18 sends execution command to electric machine controller 14; Starting high speed electric/electrical generator 11 drives drive axle 13 through 7 transmissions of power coupling case; Simultaneously for avoiding pollution emission as much as possible, also whether detection of engine admission port and exhaust gas treating device temperature value are lower than the temperature threshold value of setting in this course, if when being lower than the temperature threshold value that sets; Then send the work execution command to the temperature booster 5 of engine preheater 3 or exhaust gas treating device, implement preheating work by engine controller 16; If battery pack 15 charge values are lower than the storage battery lower limit; Send execution command by power system controller 18 to engine controller; Drive driving engines 1 idle running work to the desired speed after ignition starting of setting by engine starter 2, and detect the speed of a motor vehicle and whether reached efficient, anti-emission carburetor operation area scope in its universal characteristic curve of engine and the emissions profile, promptly vehicle directly drives speed; This is efficient if the speed of a motor vehicle falls into, in the scope of anti-emission carburetor operation area; Then power system controller 18 sends execution command to engine controller 16, the work of instruction driving engine direct drive, and power system controller 18 is the horsepower output of detection of engine during this period; If engine output exceeds when driving power demand, then the extra horsepower output drive low-speed generator 10 by driving engine is that battery pack 15 replenishes electric weight; If battery pack 15 charge values are lower than the storage battery lower limit; The 1 idle running work of power system controller 18 instruction driving engines is to the desired speed rear drive work of setting; After this detect the speed of a motor vehicle; As when not reaching the speed of a motor vehicle index of efficient, the anti-emission carburetor operation area scope in its universal characteristic curve of engine and the emissions profile, then power system controller 18 sends execution command, drives the 10 generating work of low speed dynamoelectric machine by driving engine 1; For battery pack 15 chargings, be that the 11 driving work of high speed electric/electrical generator provide the power drives vehicle operating by battery pack.
4., give it the gun by low speed
Flow chart as shown in Figure 8 after power system controller 18 receives the assisted instruction of chaufeur, at first detects the electric weight of battery pack 15; Judge whether battery pack 15 electric weight reach the storage battery lower limit, if battery pack 15 electric weight surpass the storage battery lower limit, power system controller 18 sends instruction; By the 10 driving work of low speed dynamoelectric machine; And continue to judge whether the work of low speed dynamoelectric machine reaches the acceleration demand that if still can't satisfy this acceleration demand the time, then power system controller 18 sends execution command to electric machine controller 14; Participate in driving work by high speed electric/electrical generator 11; Be the powered vehicle operation simultaneously of low speed dynamoelectric machine and high speed electric/electrical generator, and continue to detect the acceleration demand that whether reaches, if still can't satisfy the acceleration demand time; Then power system controller 18 sends execution command to engine controller 16, by driving engine and low speed dynamoelectric machine and high speed electric/electrical generator driven in common work; If the electric weight of battery pack 15 does not reach the storage battery lower limit; Then the power system controller sends execution command to engine controller 16; Driving 11 work of high speed electric/electrical generator by driving engine 1 is that battery pack 15 replenishes electric weight; And for the 10 driving work of low speed dynamoelectric machine power supply being provided by battery pack 15, detect judge whether the driving work of low speed dynamoelectric machine 10 satisfies the acceleration demand this moment again, as if can't satisfy the time; Then power system controller 18 sends execution command, fire an engine 1 driving work to engine controller.
5., by giving it the gun at a high speed
Flow chart as shown in Figure 9 after the power system controller receives assisted instruction, at first detects the electric weight of battery pack 15; Judge whether battery pack 15 electric weight reach the storage battery lower limit that sets; If surpass the storage battery lower limit, the power system controller sends execution command to electric machine controller 14 on the one hand, the 11 driving work of starting high speed electric/electrical generator; Whether the driving work of judging high speed electric/electrical generator on the other hand reaches the acceleration demand; If in the time of still can't satisfying this acceleration demand, then power system controller 18 sends execution command to engine controller 16, fire an engine 1 and the 11 fellowship driving work of high speed electric/electrical generator; Whether the driving work of judging high speed electric/electrical generator and driving engine on the other hand reaches the acceleration demand; If in the time of still can't satisfying this acceleration demand, then power system controller 18 sends execution command to electric machine controller 14, starting low speed dynamoelectric machine 10 and high speed electric/electrical generator 11 and driving engine 1 fellowship driving work; If battery pack 15 electric weight do not reach the storage battery lower limit; Then power system controller 18 sends execution command to engine controller 16; By 10 work of engine drive low speed dynamoelectric machine,, for the 11 powered vehicle work of high speed electric/electrical generator power supply is provided simultaneously for battery pack 15 replenishes electric weight; Detect, judge whether the driving work of high speed electric/electrical generator satisfies the acceleration demand this moment; If in the time of still can't satisfying, then the power system controller sends execution command to engine controller, participate in driving work by driving engine.
6., Parking
This motor vehicle driven by mixed power removes the state that in particular cases needn't keep the engine alive in the Parking state, can reduce oil consumption and discharging like this.It is behind zero the Parking state that power system controller 18 detects the speed of a motor vehicle; Detect the electric weight of battery pack 15, judge whether the battery pack electric weight reaches the storage battery lower limit that sets, if battery pack 15 electric weight do not surpass the storage battery lower limit; Power system controller 18 sends execution command to engine controller 16; After engine starter orders about racing of the engine to desirable rotating speed, drive the 11 generating work of high speed electric/electrical generator, replenish battery pack 15 electric weight by driving engine 1; Or the power system controller sends execution command, outwards power supply; If the electric weight of battery pack 15 surpasses the storage battery lower limit; And when detecting engine inlet port and exhaust gas treating device temperature value and being lower than the temperature threshold value that sets; Then be the temperature booster 5 enforcement preheating work power supplies of engine preheater 3 and exhaust gas treating device by battery pack 15, flow chart shown in figure 10.
7., Parking charging
Flow chart shown in figure 11; It is behind zero the Parking state, to detect battery pack 15 electric weight that the power system controller detects the speed of a motor vehicle, judges whether the battery pack electric weight reaches the accumulator pole limit value that sets; If the battery pack electric weight does not surpass the accumulator pole limit value; And when battery controller had detected the input of net electricity, the instruction of power system controller was carried out, and is battery charging.Wherein said accumulator pole limit value is the highest capacity value of battery pack.
8., braking and deceleration
Will generate electricity with braking or inertia energy at this, when Das Gaspedal was unclamped, no matter whether brake equipment started, and all starter-generator produces the generating of miniwatt brake torque, and the speed of a motor vehicle is slowly reduced.Flow chart shown in figure 12; Glancing impact; Drive the 11 generating work of high speed electric/electrical generators by drive axle 13 through power coupling case 7, detect battery pack 15 electric weight simultaneously and whether reach the accumulator pole limit value that sets and whether reach the requirement of the braking speed of a motor vehicle, as if not reaching speed of a motor vehicle braking requirement and the battery pack electric weight is lower than the accumulator pole limit value that sets; The power system controller sends execution command; Drive high speed electric/electrical generator 11 and the 10 generating work of low speed dynamoelectric machine by drive axle simultaneously through power coupling case 7, be battery pack 15 chargings, and continue to detect the requirement that whether reaches the braking speed of a motor vehicle; If under this state, when detection does not reach speed of a motor vehicle braking requirement yet, then also need starting friction stop mechanism fellowship to accomplish the braking operation.In this course; When if detection battery pack 15 electric weight surpass the accumulator pole limit value of setting; Then power system controller 18 sends execution command to engine controller 16; Send the work execution command by engine controller 16 to the temperature booster 5 of engine preheater 3 or exhaust gas treating device, implement preheating work.
Claims (4)
1. oil/electric hybrid multi-mode stepless speed change driving system control method; Be the basis with the oil/electric hybrid multi-mode stepless speed change driving system, this oil/electric hybrid multi-mode stepless speed change driving system includes driving engine and engine preheater and engine starter, also includes the low speed dynamoelectric machine; High speed electric/electrical generator; The battery pack that low speed dynamoelectric machine and high speed electric/electrical generator is electrically connected, driving engine and exhaust gas treating device join, and tail gas pre-heater is installed on the exhaust gas treating device; Engine output power is in transmission connection through engine clucht and power coupling case; The low speed dynamoelectric machine is in transmission connection through low-speed clutch and power coupling case, and high speed electric/electrical generator is in transmission connection through high-speed clutch and power coupling case, and the output shaft and the drive axle of power coupling case are in transmission connection; Driving engine, engine preheater and engine starter are controlled by engine controller; Low speed dynamoelectric machine, high speed electric/electrical generator and battery pack are controlled by electric machine controller; The execution circuit of power system controller connects engine controller, electric machine controller, exhaust gas treating device, power coupling case, drive axle and three-clutch; The power system controller be respectively arranged with engine inlet port and exhaust gas treating device temperature sensor bonded assembly temperature collecting cell, with battery pack bonded assembly electric quantity acquisition unit, with engine speed sensing element bonded assembly rotating speed collecting unit, with drg sensing element bonded assembly braking mode collecting unit; Gather respectively and carry out temperature detection, the detection of battery pack electric weight, rotating speed or acceleration detection and speed of a motor vehicle detection, its control method is:
1., cold or hot start:
Send, detect electric weight and the engine inlet port and the exhaust gas treating device temperature value of battery pack by the collection of power system controller, change; Judge whether the battery pack electric weight reaches the storage battery lower limit that sets; If the battery pack electric weight surpasses storage battery lower limit charge value; And when engine inlet port and exhaust gas treating device temperature value also are lower than the temperature threshold value of setting respectively; Send the work execution command to engine controller and exhaust gas treating device controller, carry out preheating work by engine preheater and tail gas pre-heater; If the battery pack electric weight is lower than storage battery lower limit charge value; And when engine inlet port and exhaust gas treating device temperature value also are lower than the lowest temperature value of setting; Power system controller start the engine, be that battery pack replenishes electric weight, and continue to detect and judge the battery pack electric weight by engine drives one dynamoelectric machine;
2., low speed starts and goes:
The battery pack electric weight is sent, detects in the collection of power system controller, change; Judge whether the battery pack electric weight reaches the storage battery lower limit that sets; If the battery pack electric weight surpasses the storage battery lower limit; The power system controller sends execution command to electric machine controller, and starting low speed dynamoelectric machine drives drive axle through power coupling case; If the battery pack electric weight is lower than the storage battery lower limit; The power system controller sends execution command to engine controller; Dally to desirable rotating speed by the engine starter fire an engine; Driving high speed electric/electrical generator is that battery pack replenishes electric weight, for the low speed dynamoelectric machine drives operation working power is provided by battery pack again;
3., middle and high speed is gone
The electric weight of battery pack is sent, detects in the collection of power system controller, change; Judge whether the battery pack electric weight reaches the storage battery lower limit that sets; If the battery pack electric weight surpasses the storage battery lower limit; The power system controller sends execution command to electric machine controller, by high speed electric/generator drive vehicle operating; If the battery pack electric weight is lower than the storage battery lower limit; Send execution command by the power system controller to engine controller; Drive engine air by engine starter and go to setting rotating speed rear drive working engine controller fire an engine starter; Start after driving racing of the engine to desirable rotating speed, when the speed of a motor vehicle reach directly drive speed after, promptly reach efficient, anti-emission carburetor operation area scope in universal characteristic curve of engine and the emissions profile; Then the power system controller sends execution command to engine controller, by the vehicle operating of driving engine direct drive; Do not reach when directly driving speed in the speed of a motor vehicle, the power system controller sends execution command to engine controller, is that battery pack replenishes generating by engine drives low speed dynamoelectric machine;
4., give it the gun by low speed
The power system controller receives assisted instruction, at first detects the electric weight of battery pack, judges whether the battery pack electric weight reaches the storage battery lower limit that sets; If the battery pack electric weight surpasses the storage battery lower limit, the power system controller sends execution command to electric machine controller, by low speed dynamoelectric machine driving work; And detect under the low speed dynamoelectric machine drives whether reach the acceleration demand; If in the time of still can't satisfying the acceleration demand, then the power system controller sends execution command to electric machine controller, participate in driving work by high speed electric/electrical generator; And continuation detects the acceleration demand that whether reaches; If in the time of still can't satisfying the acceleration demand, then the power system controller sends execution command to engine controller, by driving engine and low speed dynamoelectric machine and high speed electric/electrical generator driven in common work; If accumulator electric-quantity does not reach the storage battery lower limit; The power system controller sends execution command to engine controller, is that battery pack replenishes electric weight by engine drive high speed electric/electrical generator, and is that low speed dynamoelectric machine driving work provides power supply by battery pack; Detect again under the low speed dynamoelectric machine drives and whether satisfy the acceleration demand; If in the time of can't satisfying, then send execution command to engine controller, fire an engine drives;
5., by giving it the gun at a high speed
The power system controller receives assisted instruction, at first detects the electric weight of battery pack, judges whether the battery pack electric weight reaches the storage battery lower limit that sets; If the battery pack electric weight surpasses the storage battery lower limit, the power system controller sends execution command to electric machine controller, by high speed electric/generator drive work; And whether detection reaches the acceleration demand under high speed electric/generator drive; If in the time of still can't satisfying this acceleration demand, the power system controller sends execution command to engine controller, participates in driving work by driving engine; And continuation detects the acceleration demand that whether reaches; If in the time of still can't satisfying this acceleration demand, the power system controller sends execution command to engine controller, by low speed dynamoelectric machine and driving engine and high speed electric/electrical generator fellowship driving work; If the battery pack electric weight does not reach the storage battery lower limit; The power system controller sends execution command to engine controller, is that battery pack replenishes electric weight by engine drive low speed dynamoelectric machine, is that high speed electric/generator drive work provides power supply by battery pack; And detect high speed electric/generator drive and whether satisfy the acceleration demand; If in the time of can't satisfying, then the power system controller sends execution command to engine controller, participate in driving work by driving engine;
6., Parking
It is behind zero the Parking state that the dynamical system controller detects the speed of a motor vehicle; Detect the batteries electric weight and whether reach the battery lower limit that sets; If the batteries electric weight does not surpass the battery lower limit; The dynamical system controller sends execution command to engine controller; Pilot engine by engine starter and to drive a dynamoelectric machine generating job; Replenish the batteries electric weight, or send execution command, outwards power supply by the dynamical system controller;
7., Parking charging
It is behind zero the Parking state that the power system controller detects the speed of a motor vehicle; Whether the electric weight that detects battery pack reaches the limit of the battery pack electric weight that sets; If the battery pack electric weight does not surpass the limit of battery pack electric weight; And when the power system controller had detected the input of net electricity, the instruction of power system controller was carried out, and is battery charging;
8., braking and deceleration naturally
Braking and when deceleration naturally; Drive high speed electric/generator for electricity generation work by drive axle through power coupling case; Whether detect the battery pack electric weight simultaneously reaches the accumulator pole limit value that sets and whether reaches the requirement of the braking speed of a motor vehicle; If when the battery pack electric weight was lower than the accumulator pole limit value and does not also reach speed of a motor vehicle braking requirement, the power system controller sent execution command, drive high speed electric/electrical generator and low speed dynamoelectric machine generating work simultaneously through power coupling case by drive axle; If detect when not reaching speed of a motor vehicle braking requirement yet and battery pack electric weight when also not being higher than the accumulator pole limit value that sets, then starting friction stop mechanism fellowship is accomplished braking.
2. oil/electric hybrid multi-mode stepless speed change driving system control method according to claim 1; It is characterized in that 2., low speed starting and going; If battery pack (15) electric weight surpasses the storage battery lower limit; When power system controller (18) instruction electric machine controller (14) was driven by low speed dynamoelectric machine (10), whether detection of engine admission port and vent gas treatment actuator temperature were lower than the temperature threshold value of setting, when being lower than; Then the power system controller sends the work execution command to engine controller (16), implements preheating work by the temperature booster (5) of engine preheater (3) and exhaust gas treating device.
3. oil/electric hybrid multi-mode stepless speed change driving system control method according to claim 1; It is characterized in that 3., during middle and high speed goes; If battery pack (15) electric weight surpasses the storage battery lower limit; When power system controller (18) instruction high speed electric/electrical generator (11) drives work, also want a value in detection of engine admission port and the vent gas treatment actuator temperature whether to be lower than the temperature threshold value of setting, when being lower than the temperature threshold value that sets; Then send the work execution command to the temperature booster (5) of engine preheater (3) or exhaust gas treating device, implement preheating work by engine controller (16).
4. oil/electric hybrid multi-mode stepless speed change driving system control method according to claim 1; It is characterized in that 3., during middle and high speed goes; If battery pack (15) charge value is lower than the storage battery lower limit; By the work of power system controller instruction engine drive; The power system controller is the horsepower output of detection of engine during this period, if engine output exceeds when driving power demand, then the extra horsepower output drive low speed dynamoelectric machine by driving engine is that battery pack replenishes electric weight.
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| JP2013023052A (en) * | 2011-07-20 | 2013-02-04 | Mitsubishi Motors Corp | Control unit for hybrid vehicle |
| DE112011105512T5 (en) * | 2011-08-09 | 2014-04-30 | Toyota Jidosha Kabushiki Kaisha | Hybrid vehicle control device |
| US8892285B2 (en) * | 2012-08-08 | 2014-11-18 | GM Global Technology Operations LLC | Method and apparatus for determining a solution to a linear constraints problem in a multi-mode powertrain system |
| JP2015033912A (en) * | 2013-08-09 | 2015-02-19 | いすゞ自動車株式会社 | Hybrid system and control method thereof |
| CN104085393B (en) * | 2014-07-04 | 2016-08-24 | 重庆长安汽车股份有限公司 | A kind of strong mixed pure electronic starting control method of car |
| CN104554241B (en) * | 2014-12-15 | 2017-04-12 | 张洪延 | Control method for multi-mode relatively independent oil-electric hybrid power system |
| CN106515705A (en) * | 2017-01-20 | 2017-03-22 | 深圳市木村机电有限公司 | Fuel-electricity hybrid power system |
| CN107628023A (en) * | 2017-10-11 | 2018-01-26 | 奇瑞汽车股份有限公司 | The control method of hybrid power automobile driving system |
| CN109878497A (en) * | 2019-03-11 | 2019-06-14 | 汉腾汽车有限公司 | A kind of hybrid power synergic modeling method |
| CN113716054B (en) * | 2021-09-14 | 2023-06-27 | 上海峰飞航空科技有限公司 | Control method of power system and control method of unmanned aerial vehicle |
| CN115503635B (en) * | 2022-09-23 | 2024-02-23 | 广州市立睿升电子有限公司 | Fuel-saving and power-enhancing method for fuel-oil vehicle |
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