CN102563027A - Novel dynamic switching method for speed of hybrid electric bus - Google Patents
Novel dynamic switching method for speed of hybrid electric bus Download PDFInfo
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- CN102563027A CN102563027A CN2012100011488A CN201210001148A CN102563027A CN 102563027 A CN102563027 A CN 102563027A CN 2012100011488 A CN2012100011488 A CN 2012100011488A CN 201210001148 A CN201210001148 A CN 201210001148A CN 102563027 A CN102563027 A CN 102563027A
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Abstract
The invention discloses a hybrid electric vehicle control strategy, and relates to a novel dynamic switching method for the speed of a hybrid electric bus. The novel dynamic switching method mainly includes the steps: acquiring acceleration information of the bus; acquiring on-off information of an air conditioner of the bus; acquiring speed information of the bus; determining switching speed of the bus according to the three information parameters; and controlling an automatic clutch according to the switching speed of the bus. The novel dynamic switching method for the speed of the hybrid electric bus can be used for not only meeting the requirements of the clutch on connection and separation, but also meeting the requirements of the clutch on connection and separation after idle speed boost of an engine and the air conditioner, so that oil consumption of the bus can be reduced, smoothness of the bus is improved, and the service life of the clutch is prolonged.
Description
Technical field
The present invention relates to a kind of hybrid vehicle control strategy, related in particular to a kind of novel dynamic switching method of the hybrid power passenger car speed of a motor vehicle.
Background technique
Along with the development of domestic new-energy automobile, various hybrid vehicles occur in succession, and its structural type mainly is divided into series, parallel and series-parallel connection.Wherein modal hybrid connected structure is as shown in Figure 1: during low speed driving, automatic clutch separates, and motor driving vehicle, motor are used for generating; During high vehicle speeds, automatic clutch engages, motor-powered vehicle, motor power-assisted.Joint through the control automatic clutch with separate, realize that vehicle switches between series model and paralleling model, the separation of automatic clutch with engages by speed of a motor vehicle decision, this speed of a motor vehicle is for switching the speed of a motor vehicle, generally publishing the corresponding speed of a motor vehicle of motivation idling is the switching speed of a motor vehicle.Circulation for fear of clutch is switched, and engages the speed of a motor vehicle and can be higher than the separation speed of a motor vehicle.Can bring some problems like this:
1. when the joint speed of a motor vehicle was the speed of a motor vehicle of engine idle correspondence, vehicle quickened to switch to paralleling model from the series connection model, and clutch's jointing process can compare steadily; But owing to separate the speed of a motor vehicle less than engaging the speed of a motor vehicle, vehicle is in moderating process, and the speed of a motor vehicle can be reduced to the corresponding speed of a motor vehicle of engine idle earlier; Engine controller can be controlled engine speed near idling; If vehicle will continue to slow down, need step on braking and overcome engine idle, when the speed of a motor vehicle drops to the separation speed of a motor vehicle; Clutch could separate, and vehicle continues to slow down.Move to below the idling through the clamp pin engine speed, motor can increase oil spout, increases vehicle oil consumption, and is influential to the life-span of clutch simultaneously.
2. when the separation speed of a motor vehicle was the speed of a motor vehicle of engine idle correspondence, vehicle deceleration switched to series model from paralleling model, and clutch disengage process can compare steadily; But be higher than engine idle owing to engage the speed of a motor vehicle, in the vehicle accelerating process, when reaching the joint speed of a motor vehicle; When automatic clutch engages; This moment, motor was in idling mode, and rotating speed is lower than the rotating speed that engages speed of a motor vehicle correspondence, and motor can become the resistance that vehicle quickens; Influence vehicle power property and smoothness, can shorten the working life of clutch simultaneously.
3. when the air-conditioning of vehicle was opened, the idling of motor can promote tens commentaries on classics, and changeless switch speed and engine idle do not match.The difference of separating between the corresponding speed of a motor vehicle of the speed of a motor vehicle and motor air-conditioning idling is bigger, and is bigger to oil consumption and smoothness influence.
Summary of the invention
The present invention mainly is the deficiency to existing technology, and providing a kind of is the novel dynamic switching method of the hybrid power passenger car speed of a motor vehicle that the vehicle oil consumption rate is low, smoothness strengthens.
To achieve these goals, the present invention provides following technological scheme:
A kind of novel dynamic switching method of the hybrid power passenger car speed of a motor vehicle, its key step comprises: the information of obtaining vehicle acceleration; Obtain the switching information of vehicle air conditioning; Obtain the speed information of vehicle; According to above-mentioned three informations parameter, confirm the switching speed of a motor vehicle of vehicle; According to the switching speed of a motor vehicle of vehicle, automatic clutch is controlled.
As a preferred embodiment of the present invention, the switching speed of a motor vehicle of said vehicle comprises the joint speed of a motor vehicle and separates the speed of a motor vehicle.
As a preferred embodiment of the present invention, the corresponding relation A between the said information parameter and the said switching speed of a motor vehicle comprises:
A1. vehicle is not turned on the aircondition, and acceleration is correct time, and choosing engages the speed of a motor vehicle a little less than the corresponding speed of a motor vehicle of engine idle;
A2. vehicle is not turned on the aircondition, and when acceleration was negative, choosing separated the speed of a motor vehicle a little more than the corresponding speed of a motor vehicle of engine idle;
A3. vehicle is turned on the aircondition, and acceleration is correct time, and choosing engages the speed of a motor vehicle a little less than the corresponding speed of a motor vehicle of motor air-conditioning idling;
A4. vehicle is turned on the aircondition, and when acceleration was negative, choosing separated the speed of a motor vehicle a little more than the corresponding speed of a motor vehicle of motor air-conditioning idling.
Can find out that from technique scheme the novel dynamic switching method of the hybrid power passenger car speed of a motor vehicle that the present invention discloses is because because when the speed of a motor vehicle is switched in decision; The input of acceleration information of input and vehicle that has added the switching signal of air-conditioning; Make vehicle not only can satisfy clutch and the requirement that separates, can also satisfy the requirement that motor air-conditioning idling promotes back clutch separation and joint, the oil consumption of vehicle is reduced; Improve vehicle ride comfort, increase the life-span of clutch.
Description of drawings
Fig. 1 is the flow chart of novel dynamic switching method one preferred embodiment of the hybrid power passenger car speed of a motor vehicle of the present invention.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
Consult Fig. 1, Fig. 1 is the flow chart of novel dynamic switching method one preferred embodiment of the hybrid power passenger car speed of a motor vehicle of the present invention.
A kind of novel dynamic switching method of the hybrid power passenger car speed of a motor vehicle, its key step comprises: the information of obtaining vehicle acceleration; Obtain the switching information of vehicle air conditioning; Obtain the speed information of vehicle; According to above-mentioned three informations parameter, confirm the switching speed of a motor vehicle of vehicle; According to the switching speed of a motor vehicle of vehicle, automatic clutch is controlled.
The switching speed of a motor vehicle of said vehicle comprises the joint speed of a motor vehicle and separates the speed of a motor vehicle; In the existing technology, must make the joint speed of a motor vehicle be higher than the separation speed of a motor vehicle, but the present invention need be according to the speed of a motor vehicle, acceleration and air-conditioning switch information; These 3 parameters decide the switching speed of a motor vehicle; And need not to engage the speed of a motor vehicle and must be higher than the separation speed of a motor vehicle, like this can so that whenever switch the speed of a motor vehicle all with the engine idle coupling, thereby improve vehicle ride comfort, reduce vehicle oil consumption, increase working life of clutch.
Corresponding relation A between the said information parameter and the said switching speed of a motor vehicle comprises:
A1. vehicle is not turned on the aircondition, and acceleration is correct time, and choosing engages the speed of a motor vehicle a little less than the corresponding speed of a motor vehicle of engine idle; Like this can so that vehicle in engaging process, the clutch slip is little, engages more steadily, and engine idle is slightly high, can keep the acceleration mode of vehicle.
A2. vehicle is not turned on the aircondition, and when acceleration was negative, choosing separated the speed of a motor vehicle a little more than the corresponding speed of a motor vehicle of engine idle; Like this can be so that vehicle in separation process, separate slightly height of the speed of a motor vehicle, when also not decelerating to the speed of a motor vehicle of engine idle correspondence, clutch is just accomplished and is separated, and is not stepping on braking, and continuation is slowed down under the state that vehicle slides.
A3. vehicle is turned on the aircondition, and acceleration is correct time, and choosing engages the speed of a motor vehicle a little less than the corresponding speed of a motor vehicle of motor air-conditioning idling;
A4. vehicle is turned on the aircondition, and when acceleration was negative, choosing separated the speed of a motor vehicle a little more than the corresponding speed of a motor vehicle of motor air-conditioning idling.
The novel dynamic switching method of the hybrid power passenger car speed of a motor vehicle that the present invention discloses; Because when the speed of a motor vehicle is switched in decision, added the input of acceleration information of input and vehicle of the switching signal of air-conditioning, make vehicle not only can satisfy clutch and the requirement that separates; Can also satisfy the requirement that motor air-conditioning idling promotes back clutch separation and joint; The oil consumption of vehicle is reduced, improve vehicle ride comfort, increase the life-span of clutch.
The above; Be merely the embodiment of the preferred embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any those of ordinary skill in the art are in the technical scope that the present invention disclosed, and variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.
Claims (3)
1. the novel dynamic switching method of a hybrid power passenger car speed of a motor vehicle, it is characterized in that: its key step comprises: the information of obtaining vehicle acceleration; Obtain the switching information of vehicle air conditioning; Obtain the speed information of vehicle; According to above-mentioned three informations parameter, confirm the switching speed of a motor vehicle of vehicle; According to the switching speed of a motor vehicle of vehicle, automatic clutch is controlled.
2. the novel dynamic switching method of the hybrid power passenger car speed of a motor vehicle according to claim 1 is characterized in that: the switching speed of a motor vehicle of said vehicle comprises the joint speed of a motor vehicle and separates the speed of a motor vehicle.
3. the novel dynamic switching method of the hybrid power passenger car speed of a motor vehicle according to claim 1 is characterized in that: the corresponding relation A between the said information parameter and the said switching speed of a motor vehicle comprises:
A1. vehicle is not turned on the aircondition, and acceleration is correct time, and choosing engages the speed of a motor vehicle a little less than the corresponding speed of a motor vehicle of engine idle;
A2. vehicle is not turned on the aircondition, and when acceleration was negative, choosing separated the speed of a motor vehicle a little more than the corresponding speed of a motor vehicle of engine idle;
A3. vehicle is turned on the aircondition, and acceleration is correct time, and choosing engages the speed of a motor vehicle a little less than the corresponding speed of a motor vehicle of motor air-conditioning idling;
A4. vehicle is turned on the aircondition, and when acceleration was negative, choosing separated the speed of a motor vehicle a little more than the corresponding speed of a motor vehicle of motor air-conditioning idling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210001148.8A CN102563027B (en) | 2012-01-05 | 2012-01-05 | Novel dynamic switching method for speed of hybrid electric bus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210001148.8A CN102563027B (en) | 2012-01-05 | 2012-01-05 | Novel dynamic switching method for speed of hybrid electric bus |
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| CN102563027A true CN102563027A (en) | 2012-07-11 |
| CN102563027B CN102563027B (en) | 2014-08-20 |
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| CN201210001148.8A Active CN102563027B (en) | 2012-01-05 | 2012-01-05 | Novel dynamic switching method for speed of hybrid electric bus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105667492A (en) * | 2016-01-08 | 2016-06-15 | 郑州宇通客车股份有限公司 | Air conditioner energy-saving control method and system of hybrid power vehicle |
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| JPH0898322A (en) * | 1994-09-29 | 1996-04-12 | Toyota Motor Corp | Controller of series/parallel composite electric vehicle |
| US20020170758A1 (en) * | 2001-05-18 | 2002-11-21 | Honda Giken Kogyo Kabushiki Kaisha | Control system for hybrid vehicle |
| CN1555990A (en) * | 2003-12-30 | 2004-12-22 | 联合汽车电子有限公司 | Mixed power automobile control system and its control method |
| CN1820990A (en) * | 2005-02-15 | 2006-08-23 | 本田技研工业株式会社 | Power control unit |
| CN1927609A (en) * | 2006-10-11 | 2007-03-14 | 芦晓民 | Motor driving system with speed adaptation capability and controlling method thereof |
| CN1986307A (en) * | 2006-12-08 | 2007-06-27 | 奇瑞汽车有限公司 | Engine on-off control method for mixed power automobile |
| KR100901560B1 (en) * | 2007-11-26 | 2009-06-08 | 현대자동차주식회사 | Clutch control method for hybrid electric vehicle considering driver's characteristic |
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2012
- 2012-01-05 CN CN201210001148.8A patent/CN102563027B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0898322A (en) * | 1994-09-29 | 1996-04-12 | Toyota Motor Corp | Controller of series/parallel composite electric vehicle |
| US20020170758A1 (en) * | 2001-05-18 | 2002-11-21 | Honda Giken Kogyo Kabushiki Kaisha | Control system for hybrid vehicle |
| CN1555990A (en) * | 2003-12-30 | 2004-12-22 | 联合汽车电子有限公司 | Mixed power automobile control system and its control method |
| CN1820990A (en) * | 2005-02-15 | 2006-08-23 | 本田技研工业株式会社 | Power control unit |
| CN1927609A (en) * | 2006-10-11 | 2007-03-14 | 芦晓民 | Motor driving system with speed adaptation capability and controlling method thereof |
| CN1986307A (en) * | 2006-12-08 | 2007-06-27 | 奇瑞汽车有限公司 | Engine on-off control method for mixed power automobile |
| KR100901560B1 (en) * | 2007-11-26 | 2009-06-08 | 현대자동차주식회사 | Clutch control method for hybrid electric vehicle considering driver's characteristic |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105667492A (en) * | 2016-01-08 | 2016-06-15 | 郑州宇通客车股份有限公司 | Air conditioner energy-saving control method and system of hybrid power vehicle |
| CN105667492B (en) * | 2016-01-08 | 2019-01-25 | 郑州宇通客车股份有限公司 | A kind of air conditioner energy saving control method and system of hybrid vehicle |
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| Publication number | Publication date |
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| CN102563027B (en) | 2014-08-20 |
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Address after: Building 7, No. 15, Weiting Tingrong Street, Suzhou Industrial Park, Jiangsu Province, 215000 Patentee after: Suzhou Hager Electric Control Co.,Ltd. Address before: 309 Chengxian College of Southeast University, No. 399, Linquan Street, Dushu Lake High Education District, Suzhou City, Jiangsu Province, 215123 Patentee before: SUZHOU HAIGE NEW ENERGY AUTO ELECTRIC CONTROL SYSTEM TECHNOLOGY Co.,Ltd. |