CN102897171A - High-pressure accessory energy managing method for series hybrid electric vehicle - Google Patents
High-pressure accessory energy managing method for series hybrid electric vehicle Download PDFInfo
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- CN102897171A CN102897171A CN2012103749126A CN201210374912A CN102897171A CN 102897171 A CN102897171 A CN 102897171A CN 2012103749126 A CN2012103749126 A CN 2012103749126A CN 201210374912 A CN201210374912 A CN 201210374912A CN 102897171 A CN102897171 A CN 102897171A
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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
Abstract
The invention relates to a high-pressure accessory energy managing method for a series hybrid electric vehicle. The method comprises the following steps that: after determining that the vehicle is in a normal work mode, a vehicle control unit checks a table to acquire the power requirement for driving the vehicle by a driver according to the current accelerator pedal amplitude value, the current brake pedal state, the current gear information, and vehicle speed information; and the vehicle control unit compares the power requirement for driving the vehicle by the driver and available discharge power of a high pressure system, and judges the switch-on and switch-off condition and the limit condition of high-pressure accessories according to a comparison result. The method has the advantages that in a series hybrid power system, the vehicle control unit can reasonably allocate the energy using of the high-pressure accessories, preferentially meets the torsion required by the driver on the premise that safety is not influenced, and guarantees that the vehicle can run normally.
Description
Technical field
The present invention relates to the new energy vehicle technical field, relate in particular to a kind of high pressure annex energy management method of series hybrid vehicle.
Background technology
Development along with new-energy automobile, the proportion of the shared propulsion source of power brick is also increasing, pure electronic continual mileage also is written into laws and regulations requirement, the thing followed is in pure electronic situation, the work of too much high pressure annex can consume a large amount of electric energy, continual mileage under the pure motoring condition is reduced, series hybrid-power efficiently solves the problem of continual mileage, if but the aggregate demand electric power is excessive, probably can be able to not satisfy the torque demand of chaufeur, cause torque break, under the extreme case, may have influence on driving safety.
In Chinese patent application number is 200810057124.8 patent, disclosed content is the service condition of at first entire car controller judgement high pressure annex and the consumption of power that calculates high pressure annex demand, then calculate accordingly the actual power consumption demand of vehicle, last mode of operation and the energy-optimised calculating of on this basis, being judged parallel connection type hybrid power system by entire car controller; Vehicle can be independent by driving engine, motor separately or driving engine and motor drive torque together is provided.But for series connection type hybrid power system, whole driving torques of vehicle all have drive motor to realize, driving engine is as just the power plant of generating, can't directly drive vehicle, application number is whether 200810057124.8 patent is not worked to the high pressure annex and controlled, and only is the mode of operation that calculates vehicle according to its mode of operation.
Can to offer power that vehicle operating uses lower and when chaufeur is larger for the demand power that drives vehicle simultaneously when the high-pressure system of series hybrid-power, because the electricity consumption of vehicle high pressure annex may cause system not have enough power to satisfy the power demand of drive motor, automobile storage is in the torque safety problem, for example under the state of running at high speed, when vehicle can't provide the drive torque of chaufeur demand, automobile storage was in potential safety hazard.
Summary of the invention
The invention provides a kind of high pressure annex energy management method of series hybrid vehicle, in series connection type hybrid power system, entire car controller can reasonably distribute the energy of high pressure annex to use, and is not affecting under the safe prerequisite, preferentially satisfy the chaufeur demand torque, guarantee normal vehicle operation.
The objective of the invention is to be achieved through the following technical solutions:
A kind of high pressure annex energy management method of series hybrid vehicle, comprise: after entire car controller was judged vehicle and is in normal mode of operation, entire car controller obtained the power demand that chaufeur drives vehicle according to the state of current Das Gaspedal amplitude, current brake pedal, current gear information, speed information by tabling look-up; Entire car controller can compare described power demand and the high-pressure system that chaufeur drives vehicle with discharge power, judges switching and the limited situation of high pressure annex according to described contrast.
If power demand can be used the poor of discharge power and high pressure annex maximum demanded power less than described high-pressure system, then the high pressure annex enters normal mode of operation.
If described power demand can be used discharge power greater than described high-pressure system, then refuse the high pressure annex and open request or close the high pressure annex of having opened.
If being lower than high-pressure system, power demand can use discharge power, and greater than high-pressure system can be with the difference of discharge power and high pressure annex maximum demanded power the time, then the high pressure accessory power is limited, only allow the operation of part high pressure annex, then the high pressure accessory power is limited, only allow the operation of part high pressure annex, priority according to the high pressure annex is judged, the high pressure annex normal operation that preferential assurance is relevant with vehicle security, consider again afterwards the high pressure annex that the car load traveling comfort is relevant, such as the a/c system electricity consumption, to guarantee the demand of vehicular drive moment.
Described high-pressure system can be the generated output sum of available discharge power and the series hybrid-power electrical generator of high tension battery with discharge power.
Beneficial effect of the present invention is: entire car controller is according to current high-tension battery useful capacity, and the current demand torque of the low pressure horsepower output of direct current high-low pressure conv, system's generated output and chaufeur comes the high pressure annex is managed.If vehicle operating is at failure mode, then entire car controller is refused the unlatching request of high pressure annex; If vehicle operating is normal, during demand power when high-tension battery useful capacity and system's generated output can satisfy the work of high pressure annex, just allow the unlatching of high pressure annex; Otherwise, close successively the low high pressure annex of priority level according to the high pressure annex for the priority level of vehicle safety, to guarantee the demand of vehicular drive moment.
Description of drawings
The below is described in further detail the present invention with reference to the accompanying drawings.
Fig. 1 is the diagram of circuit of the high pressure annex energy management method of the described series hybrid vehicle of the embodiment of the invention.
The specific embodiment
As shown in Figure 1, the high pressure annex energy management method of the described series hybrid vehicle of the embodiment of the invention, comprise: after entire car controller was judged vehicle and is in normal mode of operation, entire car controller obtained the power demand that chaufeur drives vehicle according to the state of current Das Gaspedal amplitude, current brake pedal, current gear information, speed information by tabling look-up; Entire car controller can compare described power demand and the high-pressure system that chaufeur drives vehicle with discharge power, judges switching and the limited situation of high pressure annex according to described contrast.
If power demand can be used the poor of discharge power and high pressure annex maximum demanded power less than described high-pressure system, then the high pressure annex enters normal mode of operation.
If described power demand can be used discharge power greater than described high-pressure system, then refuse the high pressure annex and open request or close the high pressure annex of having opened.
If being lower than high-pressure system, power demand can use discharge power, and greater than high-pressure system can be with the difference of discharge power and high pressure annex maximum demanded power the time, then the high pressure accessory power is limited, only allow the operation of part high pressure annex, then the high pressure accessory power is limited, only allow the operation of part high pressure annex, priority according to the high pressure annex is judged, the high pressure annex normal operation that preferential assurance is relevant with vehicle security, consider again afterwards the high pressure annex that the car load traveling comfort is relevant, such as the a/c system electricity consumption, to guarantee the demand of vehicular drive moment.
Described high-pressure system can be the generated output sum of available discharge power and the series hybrid-power electrical generator of high tension battery with discharge power.
During concrete the use, entire car controller is according to current high-tension battery useful capacity, and the current demand torque of the low pressure horsepower output of direct current high-low pressure conv, system's generated output and chaufeur comes the high pressure annex is managed.When the high pressure annex was opened in the chaufeur request of sending, entire car controller was judged the running state of vehicle, if vehicle operating at failure mode, entire car controller is then refused the unlatching request of high pressure annex; If vehicle operating is normal, during demand power when high-tension battery useful capacity and system's generated output can satisfy the work of high pressure annex, just allow the unlatching of high pressure annex; Otherwise, close successively the low high pressure annex of priority level according to the high pressure annex for the priority level of vehicle safety, such as the a/c system electricity consumption, to guarantee the demand of vehicular drive moment.
The present invention is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, all drops within protection scope of the present invention.
Claims (6)
1. the high pressure annex energy management method of a series hybrid vehicle, it is characterized in that, comprise: after entire car controller was judged vehicle and is in normal mode of operation, entire car controller obtained the power demand that chaufeur drives vehicle according to the state of current Das Gaspedal amplitude, current brake pedal, current gear information, speed information by tabling look-up; Entire car controller can compare described power demand and the high-pressure system that chaufeur drives vehicle with discharge power, judges switching and the limited situation of high pressure annex according to described contrast.
2. the high pressure annex energy management method of series hybrid vehicle according to claim 1, it is characterized in that: if power demand can be used the poor of discharge power and high pressure annex maximum demanded power less than described high-pressure system, then the high pressure annex enters normal mode of operation.
3. the high pressure annex energy management method of series hybrid vehicle according to claim 1, it is characterized in that: if described power demand can be used discharge power greater than described high-pressure system, then refuse the high pressure annex and open request or close the high pressure annex of having opened.
4. the high pressure annex energy management method of series hybrid vehicle according to claim 1, it is characterized in that: can use discharge power if power demand is lower than high-pressure system, and greater than high-pressure system can be with the difference of discharge power and high pressure annex maximum demanded power the time, then the high pressure accessory power is limited, only allows the operation of part high pressure annex.
5. the high pressure annex energy management method of series hybrid vehicle according to claim 4, it is characterized in that: the priority according to the high pressure annex is judged, the high pressure annex that the car load traveling comfort is relevant is considered in the high pressure annex normal operation that preferential assurance is relevant with vehicle security afterwards again.
6. the high pressure annex energy management method of each described series hybrid vehicle according to claim 1-5, it is characterized in that, described high-pressure system can be the generated output sum of available discharge power and the series hybrid-power electrical generator of high tension battery with discharge power.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103749126A CN102897171A (en) | 2012-09-29 | 2012-09-29 | High-pressure accessory energy managing method for series hybrid electric vehicle |
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| CN2012103749126A CN102897171A (en) | 2012-09-29 | 2012-09-29 | High-pressure accessory energy managing method for series hybrid electric vehicle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740823A (en) * | 2016-12-30 | 2017-05-31 | 风度（常州）汽车研发院有限公司 | A kind of vehicle electrical power coupled dynamics and control method |
| CN109080461A (en) * | 2018-07-06 | 2018-12-25 | 联合汽车电子有限公司 | The distribution system and distribution method of automobile electrical power |
| CN109720215A (en) * | 2017-10-31 | 2019-05-07 | 长城汽车股份有限公司 | A kind of Poewr control method, device and electro-motive vehicle |
| CN111907371A (en) * | 2020-08-10 | 2020-11-10 | 宁波吉利汽车研究开发有限公司 | Vehicle high-voltage accessory energy control method and energy control system |
| CN113492723A (en) * | 2021-07-22 | 2021-10-12 | 上汽通用五菱汽车股份有限公司 | Power battery power distribution method, vehicle and computer readable storage medium |
| CN114475269A (en) * | 2020-10-23 | 2022-05-13 | 北汽福田汽车股份有限公司 | Motor control method, device, vehicle and medium |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740823A (en) * | 2016-12-30 | 2017-05-31 | 风度（常州）汽车研发院有限公司 | A kind of vehicle electrical power coupled dynamics and control method |
| CN109720215A (en) * | 2017-10-31 | 2019-05-07 | 长城汽车股份有限公司 | A kind of Poewr control method, device and electro-motive vehicle |
| CN109080461A (en) * | 2018-07-06 | 2018-12-25 | 联合汽车电子有限公司 | The distribution system and distribution method of automobile electrical power |
| CN111907371A (en) * | 2020-08-10 | 2020-11-10 | 宁波吉利汽车研究开发有限公司 | Vehicle high-voltage accessory energy control method and energy control system |
| CN111907371B (en) * | 2020-08-10 | 2021-09-14 | 宁波吉利汽车研究开发有限公司 | Vehicle high-voltage accessory energy control method and energy control system |
| CN114475269A (en) * | 2020-10-23 | 2022-05-13 | 北汽福田汽车股份有限公司 | Motor control method, device, vehicle and medium |
| CN114475269B (en) * | 2020-10-23 | 2023-09-08 | 北汽福田汽车股份有限公司 | Motor control method and device, vehicle and medium |
| CN113492723A (en) * | 2021-07-22 | 2021-10-12 | 上汽通用五菱汽车股份有限公司 | Power battery power distribution method, vehicle and computer readable storage medium |
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Application publication date: 20130130 |