CN102649429A - Auxiliary motive power control method and device of micro hybrid electric vehicles - Google Patents
Auxiliary motive power control method and device of micro hybrid electric vehicles Download PDFInfo
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- CN102649429A CN102649429A CN2012101300413A CN201210130041A CN102649429A CN 102649429 A CN102649429 A CN 102649429A CN 2012101300413 A CN2012101300413 A CN 2012101300413A CN 201210130041 A CN201210130041 A CN 201210130041A CN 102649429 A CN102649429 A CN 102649429A
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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
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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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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Abstract
The invention provides an auxiliary motive power control method and an auxiliary motive power control device of micro hybrid electric vehicles and belongs to the technical field of automobiles. The control method and the control device solve the problem of low whole work efficiency of the existing hybrid power system. The auxiliary motive power control method comprises the following steps that: a, the demand torque required by the running of an automobile and the system on chip (SOC) size of a storage battery are detected; b, the sum of the maximum output torque when an engine works at an efficient region and the maximum output torque when a motor works at the efficient region is compared with the demand torque; c, the auxiliary motive power control device controls the engine to output the maximum output torque when the engine works at the efficient region, and the motor outputs the rest of demand torque; d, the auxiliary motive power control device controls one of the two motive power facilities: the engine and the motor to output the maximum torque, and the other motive power facility outputs the rest of demand torque; and e, the auxiliary motive power control device controls the motor to stop work, and the engine outputs according to the demand torque. The auxiliary motive power control method and the control device have the advantages that the whole work efficiency of the hybrid power system is high, the fuel economy is high, and the like.
Description
Technical field
The invention belongs to automobile technical field, relate to a kind of hybrid system control method, relate in particular to a kind of weak auxiliary power control method and control setup that mixes vehicle.
Background technology
Warming gradually of energy shortage that causes owing to the global resources scarcity of resources and global environment, it is nervous and reduce the environmental pollution ever more important how to alleviate resource, and hybrid vehicle arises at the historic moment as new-energy automobile.It is that driving engine is in the transient process for driving engine provides extra power-assisted and helps driving engine to reach steady state condition as early as possible that hybrid power system can be in operating modes such as acceleration, climbing at automobile, reduces the consumption of discharging and fuel oil.It is assisted provides power-assisted general type for when car acceleration or other high load working conditions, gathers the real output moment of torsion of car load demand torque and driving engine in real time, and insufficient section carries out dynamic compensation by the ISG motor.Yet, when hybrid power system is in the assistive drive state, how effectively to distribute the moment of torsion of driving engine and ISG motor to become the subject matter that this system faced.
For this reason, people have proposed various solutions through long-term exploration, and some has also applied for patent.For example, Chinese patent discloses a kind of drive controlling method and apparatus [publication number: CN101565042A of hybrid vehicle; Application number: 200910138646.5], this method comprises: (1) entire car controller is asked driving, engine system, the integrated starting motor system, transmission system, battery system, driving system, the abs braking antiblock device detects; (2) according to the testing result of (1), control-driven system is chosen under motor assistive drive pattern, electric power generation pattern, motor regenerative brake pattern or the electrical efficiency assistive drive pattern and works.Driving control device of the present invention, by entire car controller respectively with driving engine, integrated starting motor, change speed gear box and abs braking antiblock device connect and compose, and have realized the real-time detection of entire car controller to each actuating device working condition.
The drive controlling method and apparatus of this hybrid vehicle can make engine operation in the optimum economic zone of efficient region when motor assistive drive pattern especially electrical efficiency assistive drive pattern, and this moment, engine fuel efficient was higher.Yet it can't guarantee that in efficient region, also making the ISG machine operation in engine operation is most effective zone at efficient region, and causes single-piece efficient can not remain in the higher work efficiency scope.
Summary of the invention
The objective of the invention is the problems referred to above of existing to prior art, proposed the auxiliary power control method and the control setup of the weak mixed vehicle of the low and car load high efficiency of a kind of fuel oil consumption.
The object of the invention can be realized through following technical proposal:
A kind of weak auxiliary power control method of mixing vehicle utilizes an auxiliary propulsion-unit control device for use to control the output torque of driving engine and motor, it is characterized in that this control method comprises the steps:
A, detect the size of demand torque with the SOC of storage battery of running car, if demand torque is less than setting value or SOC during less than setting value, entering step e; If demand torque during greater than setting value, gets into step b greater than setting value and SOC;
B, the max. output torque sum when maximum output torque and machine operation are at efficient region when the efficient region with engine operation contrast with demand torque; If driving engine and motor be in the moment of torsion maxim sum of efficient region output during greater than demand torque, entering step c; If driving engine and motor be in the moment of torsion maxim sum of efficient region output during less than demand torque, the entering steps d;
Its torque peak when being operated in efficient region of c, auxiliary propulsion-unit control device for use control driving engine output, motor is exported remaining demand torque;
At this moment, driving engine and motor all work in efficient region.
An output torque peak in d, auxiliary propulsion-unit control device for use control driving engine and these two power plants of motor, another power plant is exported remaining demand torque;
E, auxiliary propulsion-unit control device for use control motor quit work, and driving engine is by the output of demand moment of torsion.
In the auxiliary power control method of above-mentioned a kind of weak mixed vehicle, among the described step a, at first judge the size of demand torque, if this demand torque less than setting value, then gets into step e; If, carrying out the size of the SOC of storage battery again greater than setting value, demand torque judges.
In the auxiliary power control method of above-mentioned a kind of weak mixed vehicle, if the SOC of storage battery then gets into step e less than setting value; If this SOC greater than setting value, then gets into step b.
In the auxiliary power control method of above-mentioned a kind of weak mixed vehicle, in the described steps d, auxiliary propulsion-unit control device for use control driving engine is by the torque peak output of its work, and motor is exported remaining demand torque.
In the auxiliary power control method of above-mentioned a kind of weak mixed vehicle, in the described steps d, auxiliary propulsion-unit control device for use control motor is by the peak torque output of its work, and driving engine is exported remaining demand torque.
A kind of weak auxiliary propulsion-unit control device for use that mixes vehicle is characterized in that described control setup comprises
Detection module is used for detecting the SOC value of the demand torque and the storage battery of running car;
Module is set, is used to be provided with the setting value of demand torque and storage battery SOC;
Comparison module is used for comparison the demand moment of torsion and its setting value, and the SOC value of storage battery and its setting value and driving engine and motor are in the moment of torsion maxim sum of efficient region output and the size of demand torque, and the output comparative result;
When ISG is in when the auxiliary power pattern is provided, comparison module will detect running car demand torque and setting the demand torque value relatively, if the required demand torque of running car is less than setting value, comparison module directly sends comparison signal to control module.If demand torque is greater than setting value, comparison module compares the SOC value of current storage battery with the SOC value of setting, and exports corresponding comparison signal.When comparative result greater than 0 the time, comparison module comparison engine and motor are in the moment of torsion maxim sum and the demand torque value of efficient region output, regardless of the result, comparison module all will send corresponding comparison signal to the control module place.
Control module is used to receive the comparative result of above-mentioned comparison module and exports control signal corresponding;
Driver module, be used to receive above-mentioned control signal and according to this control signal output drive signal to drive driving engine and machine operation.Driver module receives demand torque less than setting value or SOC value during the control signal during less than setting value, and driver module is controlled driving engine with output drive signal and exported by the demand torque rating, and motor is not worked.When driver module receives signal is that demand torque is greater than setting value; Storage battery SOC value greater than setting value and driving engine and motor the moment of torsion maxim sum of efficient region output during greater than demand torque driver module drive engine operation at efficient region; The unmet demand moment of torsion is provided by motor; At this moment, both all are operated in efficient region.And when driving engine and motor the moment of torsion maxim sum of efficient region output during less than demand torque driver module drive driving engine and press total external characteristics work; Be that driving engine is exported by torque peak; The unmet demand moment of torsion is provided by motor or drive motor is exported by the peak torque of its work, and driving engine is exported remaining demand torque.
Compared with prior art; The auxiliary power control method of this weak mixed vehicle and control setup are in the auxiliary power mode of operation at hybrid power system makes engine operation guarantee also that in efficient region motor can be operated in efficient region; Thereby overall system efficiency is stabilized within the comparatively high scope, has improved the fuel economy of car load and the tractive performance of vehicle.
Description of drawings
Fig. 1 is this weak auxiliary power control method of vehicle and workflow diagram of control setup of mixing.
The specific embodiment
Below be specific embodiment of the present invention and combine accompanying drawing, technical scheme of the present invention is done further to describe, but the present invention is not limited to these embodiment.
Embodiment one
The auxiliary propulsion-unit control device for use of realizing this auxiliary power control method comprises detection module, module is set, comparison module, control module and driver module; Detection module, module, comparison module and driver module are set all are connected with control module, each component part in will installing in the present embodiment is made as each functional module.
This weak auxiliary power control method of mixing vehicle is specially: when automobile runs into acceleration or other high load working conditions in the process of moving; Motor in the hybrid power system is that automotive engine provides auxiliary power; Detection module detects the SOC value of required demand torque of running car and storage battery in real time, and through comparison module with testing result with the setting value that module sets be set compare.Storage battery SOC value is the state-of-charge of storage battery, i.e. battery dump energy.
When demand torque during less than setting value, control module receives signal and the control and driving module that comparison module sends and makes the driving engine output moment of torsion identical with demand torque, and the signal of control module transmission simultaneously quits work motor to driver module.When detecting demand torque greater than setting value, this moment, comparison module can be made comparisons SOC value and setting value that detection module detects the storage battery obtain.
When the SOC value that detects storage battery during less than setting value, control module receives signal that comparison module sends and also sends control signal and drive driving engine to driver module and export as required, stops the motor operation simultaneously.And when the SOC value that detects storage battery during greater than setting value; Comparison module is done comparison to driving engine and motor in the moment of torsion maxim sum of efficient region output and the size of demand torque; If the former is greater than the latter, then control module receives this comparison signal and sends control signal and give driver module, and driver module receives and send its torque peak at efficient region of drive signal control driving engine output; Remaining demand torque is provided by motor; This moment, driving engine and motor all were operated in efficient region separately, made that so the fuel economy of car load is better, and the whole work efficiency of hybrid power system is higher.
And driving engine and motor are in the moment of torsion maxim sum of efficient region output during less than the demand torque value; This moment, driving engine or motor can't be operated in efficient region separately simultaneously; Consider that the electric weight that moment of torsion that motor can provide and storage battery can provide is limited, so driver module sends drive signal and make driving engine not be operated in its efficient region, it is exported by maximum torque; Surplus torque is provided by motor, can guarantee the tractive performance of vehicle under this situation.
Embodiment two
Present embodiment is identical with the step of embodiment one; The control setup of realizing control method is also identical; Different place is that the comparison signal that comparison module sent that receives when control module is that demand torque is greater than setting value; In the moment of torsion maxim sum of efficient region output during less than demand torque, owing to consider that the ISG motor can provide peak torque, the power plant of therefore setting the output torque peak is a motor to storage battery SOC value greater than setting value and driving engine and motor.When control signal received above-mentioned signal and sends a control signal to driver module, driver module sent drive signal control motor and is not operated in efficient region, promptly exports its peak torque so, and surplus torque is then provided by driving engine.
Specific embodiment described herein only is that spirit of the present invention is made casehistory.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (6)
1. mix the auxiliary power control method of vehicle a little less than one kind, utilize an auxiliary propulsion-unit control device for use to control the output torque of driving engine and motor, this control method comprises the steps:
A, detect the size of demand torque with the SOC of storage battery of running car, if demand torque is less than setting value or SOC during less than setting value, entering step e; If demand torque during greater than setting value, gets into step b greater than setting value and SOC;
B, the max. output torque sum when maximum output torque and machine operation are at efficient region when the efficient region with engine operation contrast with demand torque; If driving engine and motor be in the moment of torsion maxim sum of efficient region output during greater than demand torque, entering step c; If driving engine and motor be in the moment of torsion maxim sum of efficient region output during less than demand torque, the entering steps d;
Its torque peak when being operated in efficient region of c, auxiliary propulsion-unit control device for use control driving engine output, motor is exported remaining demand torque;
An output torque peak in d, auxiliary propulsion-unit control device for use control driving engine and these two power plants of motor, another power plant is exported remaining demand torque;
E, auxiliary propulsion-unit control device for use control motor quit work, and driving engine is by the output of demand moment of torsion.
2. weak auxiliary power control method of mixing vehicle according to claim 1 is characterized in that, among the described step a, at first judges the size of demand torque, if this demand torque less than setting value, then gets into step e; If, carrying out the size of the SOC of storage battery again greater than setting value, demand torque judges.
3. weak auxiliary power control method of mixing vehicle according to claim 2 is characterized in that the SOC of described storage battery then gets into step e less than setting value; If this SOC greater than setting value, then gets into step b.
4. according to claim 1 or 2 or 3 described weak auxiliary power control methods of mixing vehicle, it is characterized in that in the described steps d, auxiliary propulsion-unit control device for use control driving engine is by the torque peak output of its work, motor is exported remaining demand torque.
5. according to claim 1 or 2 or 3 described weak auxiliary power control methods of mixing vehicle, it is characterized in that in the described steps d, auxiliary propulsion-unit control device for use control motor is by the peak torque output of its work, driving engine is exported remaining demand torque.
6. mix the auxiliary propulsion-unit control device for use of vehicle a little less than one kind, described control setup comprises
Detection module is used for detecting the SOC value of the demand torque and the storage battery of running car;
Module is set, is used to be provided with the setting value of demand torque and storage battery SOC;
Comparison module is used for comparison the demand moment of torsion and its setting value, and the SOC value of storage battery and its setting value and driving engine and motor are in the moment of torsion maxim sum of efficient region output and the size of demand torque, and the output comparative result;
Control module is used to receive the comparative result of above-mentioned comparison module and exports control signal corresponding;
Driver module, be used to receive above-mentioned control signal and according to this control signal output drive signal to drive driving engine and machine operation.
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| CN201210130041.3A CN102649429B (en) | 2012-04-27 | 2012-04-27 | Auxiliary motive power control method and device of micro hybrid electric vehicles |
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| CN104879229A (en) * | 2015-06-02 | 2015-09-02 | 安徽江淮汽车股份有限公司 | Electronic idling control method and electronic idling control system for engine |
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| CN106274883A (en) * | 2016-08-29 | 2017-01-04 | 北京新能源汽车股份有限公司 | The control method of hybrid vehicle, device and automobile |
| CN108657169A (en) * | 2017-03-27 | 2018-10-16 | 福特全球技术公司 | It is controlled for the motor torsional moment of reserve battery energy in hybrid vehicle |
| CN110040002A (en) * | 2019-03-26 | 2019-07-23 | 阿尔特汽车技术股份有限公司 | A kind of optimal control method of motor of hybrid power automobile booster torquemoment peak value |
| CN110588631A (en) * | 2019-09-20 | 2019-12-20 | 安徽合力股份有限公司 | Control method of hybrid power system |
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| CN110040002A (en) * | 2019-03-26 | 2019-07-23 | 阿尔特汽车技术股份有限公司 | A kind of optimal control method of motor of hybrid power automobile booster torquemoment peak value |
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| CN110588631B (en) * | 2019-09-20 | 2021-03-26 | 安徽合力股份有限公司 | Control method of hybrid power system |
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Effective date of registration: 20190314 Address after: 317000 east gate of Taizhou City, Zhejiang Province Co-patentee after: Zhejiang Geely Holding Group Co., Ltd. Patentee after: Zhejiang Geely Automobile Research Institute Co., Ltd. Address before: 311228 No. 206 Farmer's Second House in Linjiang Industrial Park, Xiaoshan District, Hangzhou City, Zhejiang Province Co-patentee before: Zhejiang Geely Automobile Research Institute Co., Ltd. Patentee before: Hangzhou Branch, Zhejiang Geely Automobile Research Institute Co., Ltd. Co-patentee before: Zhejiang Geely Holding Group Co., Ltd. |