CN102062004B - Control method of secondary idling halt of hybrid power automobile - Google Patents
Control method of secondary idling halt of hybrid power automobile Download PDFInfo
- Publication number
- CN102062004B CN102062004B CN201010612179.8A CN201010612179A CN102062004B CN 102062004 B CN102062004 B CN 102062004B CN 201010612179 A CN201010612179 A CN 201010612179A CN 102062004 B CN102062004 B CN 102062004B
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- idle stop
- control unit
- speed
- electric vehicle
- hybrid electric
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000007935 neutral effect Effects 0.000 claims description 4
- 238000009790 rate-determining step (RDS) Methods 0.000 claims description 3
- 239000000446 fuel Substances 0.000 abstract description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Classifications
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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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- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The invention discloses a control method of secondary idling halt of a hybrid power automobile. When the automobile is subject to primary normal idling halt and the speed does not reach the specified speed, if other idling halt conditions except the speed condition are met, the secondary idling halt is carried out. The invention provides a control method for improving the idling halt of the hybrid power automobile. Through judging the speed condition and the counter value, the automobile is allowed to have secondary halt in an idling halt circulation without frequently idling halt, so that the purposes of saving fuel and reducing the emission pollution are achieved.
Description
Technical field
The present invention relates to the controlling method of oil-electric vehicle, particularly oil-electric vehicle is in the controlling method of secondary idling halt.
Background technique
Hybrid vehicle is a kind of energy-saving and environment-friendly automobile, and the characteristic of its energy saving standard is the key factor that hybrid vehicle is subject to client and government's welcome, therefore wants emphasis to consider these factors when designing hybrid vehicle.
At present, the structured flowchart of the basic control system of oil-electric vehicle as shown in Figure 1, the work of engine control system 8 (EMS) major control petrol engine 1, motor control unit 7 (MCU) is used to the work controlling motor 2 (ISG), the main task of battery management system 5 (BMS) is dynamics of management battery 4, and EMS, MCU and BMS are unified by hybrid electric vehicle complete vehicle control unit 6 (HCU) cooperation control, HCU, EMS, MCU and BMS are generally contacted by CAN.Total control procedure is under the unified control of HCU, BMS controls electrokinetic cell 4 through the inverter 3 that controlled by MCU for ISG provides electric power, driving automobile runs together with the motor 1 controlled by EMS, as shown in the figure, native system is a kind of parallel-connection type power system, motor 1 is with motor 2 or at the same time or separately for automotive system provides power (moment), when motor 1 is at effective use, if when required moment exceedes the moment that motor provides, HCU by MCU control inverter by the threephase AC of the DC inverter of battery required for motor, motor provides auxiliary torque for motor, when motor 1 is at effective use, when the motive torque produced is greater than the moment required for automobile, it is power battery charging that HCU absorbs unnecessary moment generation electric energy by MCU control ISG again.Particularly to stop or idling time, HCU by EMS control motor shut down.The condition of idle stop is: speed of a motor vehicle v≤5km/h, hangs neutral.
After hybrid vehicle idle stop, likely can there is driver's misoperation and make engine start, also likely motor just restarted and vehicle moves with very low speed time driver change one's intention and want stop time, but now do not meet the speed of a motor vehicle condition that motor is shut down---because in order to avoid the idling start-stop frequently of motor during low speed, only having vehicle to be greater than a certain vehicle speed value from the speed of a motor vehicle reduces speed now to just allowing during another less vehicle speed value to shut down, if but now motor can not be shut down, engine idle will increase exhaust emission and fuel consume, therefore engine secondary idle stop is allowed, to reach reduction exhaust emission, save the object of fuel oil.
Summary of the invention
The invention provides a kind of controlling method improving hybrid vehicle idling start-stop; by the judgement to speed of a motor vehicle condition and Counter Value; vehicle is allowed to allow secondary to shut down in an idle stop circulation; and be unlikely to idling start-stop frequently; to reach saving fuel oil, reduce the object of exhaust emission.
The present invention realizes the technological scheme that its object adopts to be: a kind of controlling method of secondary idling halt of hybrid power automobile; the method allows automobile after first time normally idle stop; when speed does not also reach the speed of regulation; when meeting the condition of second time idle stop condition, carry out second time idle stop.Comprise the following steps in the rate-determining steps of hybrid electric vehicle complete vehicle control unit:
Steps A, hybrid electric vehicle complete vehicle control unit detect automobile working state and whether meet idle stop condition, if meet idle stop condition, then second time idle stop state are set to effectively, and go to step B, otherwise continue this step;
Step B, hybrid electric vehicle complete vehicle control unit control motor by control unit of engine and carry out idle stop;
After step C, idle stop, hybrid electric vehicle complete vehicle control unit detects whether ato unit, if ato unit, then by control unit of engine ato unit, and proceeds to step D, otherwise continues this step;
Step D, hybrid electric vehicle complete vehicle control unit detect the speed of a motor vehicle, if the speed of a motor vehicle is greater than the first setting speed, then turn to steps A, otherwise detect automobile working state and whether meet second time idle stop condition, if meet second time idle stop condition, detect second time idle stop state, if second time idle stop state is set to effectively, then proceed to step e while of meeting second time idle stop condition; Otherwise continue this step;
Step e, hybrid electric vehicle complete vehicle control unit control motor by control unit of engine and carry out idle stop, and second time idle stop state are set to invalid, turn to step C.
The invention provides a kind of controlling method improving hybrid vehicle idling start-stop; by the judgement to speed of a motor vehicle condition and Counter Value; vehicle is allowed to allow secondary to shut down in an idle stop circulation; and be unlikely to idling start-stop frequently; to reach saving fuel oil, reduce the object of exhaust emission.
Below by carrying out comparatively detailed description with accompanying drawing to technological scheme of the present invention in conjunction with specific embodiments.
Accompanying drawing explanation
Accompanying drawing 1 is the control system block diagram of hybrid vehicle.
Accompanying drawing 2 is control flow charts that in the embodiment of the present invention, HCU controls second time idle stop.
Embodiment
Embodiment 1: as shown in Figure 2, the present embodiment is that parallel hybrid electric vehicle full-vehicle control unit is to the controlling method of second time idle stop, in the method, HCU, BMS, MCU, EMS etc. are communicated by CAN, allow automobile after first time normally idle stop in the method, when speed does not also reach the speed of regulation, when meeting the condition of second time idle stop condition, carry out second time idle stop; Comprise the following steps in the rate-determining steps of hybrid electric vehicle complete vehicle control unit:
Steps A, hybrid electric vehicle complete vehicle control unit detect automobile working state and whether meet idle stop condition, if meet idle stop condition, then second time idle stop state are set to effectively, and go to step B, otherwise continue this step;
Step B, hybrid electric vehicle complete vehicle control unit control motor by control unit of engine and carry out idle stop;
After step C, idle stop, hybrid electric vehicle complete vehicle control unit detects whether ato unit, if ato unit, then by control unit of engine ato unit, and proceeds to step D, otherwise continues this step;
Step D, hybrid electric vehicle complete vehicle control unit detect the speed of a motor vehicle, if the speed of a motor vehicle is greater than the first setting speed, then turn to steps A, otherwise detect automobile working state and whether meet second time idle stop condition, if meet second time idle stop condition, detect second time idle stop state, if second time idle stop state is set to effectively, then proceed to step e while of meeting second time idle stop condition; Otherwise continue this step;
Step e, hybrid electric vehicle complete vehicle control unit control motor by control unit of engine and carry out idle stop, and second time idle stop state are set to invalid, turn to step C.
In the present embodiment, idle stop condition is that hybrid electric vehicle complete vehicle control unit detects that automobile is the neutral of hanging, and the speed of a motor vehicle drops to be less than 5Km/s from being greater than 12Km/s degree.
Second time idle stop condition is that hybrid electric vehicle complete vehicle control unit detects that automobile is the neutral of hanging, and the speed of a motor vehicle drops to lower than 5Km/s.
The control flow chart of the second time idle stop that in the present embodiment, oil-electric vehicle carries out as shown in Figure 2.Can make hybrid vehicle after carrying out first time idle stop by following controlling method; ato unit; when speed does not also reach certain speed; second time idle stop can be carried out; but after second time idle stop, if restarted, when speed does not also reach fixing speed; when lowering again, no longer carry out idle stop.
When reducing speed now when vehicle is greater than 12km/h from speed of a motor vehicle v, timer T=0, other condition of idling start-stop meets the demands, and when speed of a motor vehicle v drops to and is less than or equal to 5km/h, realizes idle stop, T=T+1.Cause motor to restart when the misoperation due to driver or driver changes driving intention and wants to stop after restarting due to motor time; and speed of a motor vehicle v is less than 12km/h; counter T < 2; when speed of a motor vehicle v be reduced to be less than or equal to 5km/h time; second time is allowed to shut down; when v is greater than 12km/h, start new circulation.
Claims (6)
1. the controlling method of a secondary idling halt of hybrid power automobile, in the method, allow automobile after first time normally idle stop, when speed does not also reach the speed of regulation, when meeting the condition of second time idle stop condition, carry out second time idle stop; It is characterized in that: comprise the following steps in the rate-determining steps of hybrid electric vehicle complete vehicle control unit:
Steps A, hybrid electric vehicle complete vehicle control unit detect automobile working state and whether meet idle stop condition, if meet idle stop condition, then second time idle stop state are set to effectively, and go to step B, otherwise continue this step;
Step B, hybrid electric vehicle complete vehicle control unit control motor by control unit of engine and carry out idle stop;
After step C, idle stop, hybrid electric vehicle complete vehicle control unit detects whether ato unit, if ato unit, then by control unit of engine ato unit, and proceeds to step D, otherwise continues this step; Step D, hybrid electric vehicle complete vehicle control unit detect the speed of a motor vehicle, if the speed of a motor vehicle is greater than the first setting speed, then turn to steps A, otherwise detect automobile working state and whether meet second time idle stop condition, if meet second time idle stop condition, detect second time idle stop state, if second time idle stop state is set to effectively, then proceed to step e while of meeting second time idle stop condition; Otherwise continue this step;
Step e, hybrid electric vehicle complete vehicle control unit control motor by control unit of engine and carry out idle stop, and second time idle stop state are set to invalid, turn to step C.
2. the controlling method of a kind of secondary idling halt of hybrid power automobile according to claim 1; it is characterized in that: described idle stop condition is that hybrid electric vehicle complete vehicle control unit detects that automobile is the neutral of hanging, and the speed of a motor vehicle is from when dropping to lower than the second setting speed higher than the first setting speed.
3. the controlling method of a kind of secondary idling halt of hybrid power automobile according to claim 2, is characterized in that: the first described setting speed is 12Km/s, the second setting speed is 5Km/s.
4. the controlling method of a kind of secondary idling halt of hybrid power automobile according to claim 1; it is characterized in that: described second time idle stop condition is that hybrid electric vehicle complete vehicle control unit detects that automobile is the neutral of hanging, and when the speed of a motor vehicle drops to lower than the second setting speed.
5. the controlling method of a kind of secondary idling halt of hybrid power automobile according to claim 1, is characterized in that: described hybrid electric vehicle complete vehicle control unit communicates with by CAN.
6. the controlling method of a kind of secondary idling halt of hybrid power automobile according to claim 1, is characterized in that: described hybrid vehicle is parallel hybrid electric vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010612179.8A CN102062004B (en) | 2010-12-29 | 2010-12-29 | Control method of secondary idling halt of hybrid power automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010612179.8A CN102062004B (en) | 2010-12-29 | 2010-12-29 | Control method of secondary idling halt of hybrid power automobile |
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| CN102062004A CN102062004A (en) | 2011-05-18 |
| CN102062004B true CN102062004B (en) | 2015-01-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103223946A (en) * | 2013-04-22 | 2013-07-31 | 重庆长安汽车股份有限公司 | Hybrid electric vehicle, control system and method for idling stop of hybrid electric vehicle |
| CN107327350A (en) * | 2017-07-06 | 2017-11-07 | 联合汽车电子（重庆）有限公司 | A kind of motorcycle engine idling start-stop control system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367381A (en) * | 2007-08-17 | 2009-02-18 | 奇瑞汽车股份有限公司 | Weak hybrid power automobile motor control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7691027B2 (en) * | 2007-11-29 | 2010-04-06 | Ford Global Technologies, Llc | Idle speed control of a hybrid electric vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367381A (en) * | 2007-08-17 | 2009-02-18 | 奇瑞汽车股份有限公司 | Weak hybrid power automobile motor control method |
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| CN102062004A (en) | 2011-05-18 |
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