CN104085397A - Control method for solving powerless acceleration of 1.5 L engine in opening air conditioner - Google Patents
Control method for solving powerless acceleration of 1.5 L engine in opening air conditioner Download PDFInfo
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- CN104085397A CN104085397A CN201310754724.0A CN201310754724A CN104085397A CN 104085397 A CN104085397 A CN 104085397A CN 201310754724 A CN201310754724 A CN 201310754724A CN 104085397 A CN104085397 A CN 104085397A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/192—Mitigating problems related to power-up or power-down of the driveline, e.g. start-up of a cold engine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/30—Conjoint control of vehicle sub-units of different type or different function including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0638—Engine speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/10—Accelerator pedal position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/16—Ratio selector position
Abstract
The invention discloses a control method for solving powerless acceleration of a 1.5 L engine in opening an air conditioner. According to the invention, an automobile is determined to be in a driving process by detecting gears of an automobile gearbox, and determined to be in an acceleration state by detecting the rotating speed of the engine and a pedal signal corresponding to the rotating speed of the engine, the air conditioner of the automobile is stopped to improve dynamic performances of the engine at the moment to prevent the powerless acceleration of the engine in an acceleration process, meanwhile, the duration for stopping the air conditioner is further limited, the duration for stopping the air conditioner is controlled to prevent the air conditioner stop time process of the automobile from affecting temperature changes of an overall environment in the automobile, and further avoid influence on the service life of an air condition compressor because the air conditioner of the automobile is frequently opened and closed to reach the purpose of ensuring the dynamic performances of the automobile and further not obviously affecting the temperature changes of the overall environment in the automobile.
Description
Technical field
The present invention relates to driving engine correlative technology field, refer in particular to a kind of 1.5L of solution driving engine unlatching air-conditioning and accelerate unable control method.
Background technology
Compare with intermediate car, the fuel consumption of 100km of light car on average will be low 3 liters or more.Along with the further anxiety of the energy, gasoline still has the possibility of rise in price, and it is undisputable fact that light car can be saved the energy.Automobile with small output volume, because its quantity discharged is little, to the contamination level of air also corresponding reduction, with the advantage of its cleaning, environmental protection, is subject to the constantly European car customers' of reinforcement popular welcome of environmental consciousness.Through development these years, the technology content of light car is more and more higher, and low discharge capacity does not also mean that low configuration and low technical.With some for many years constant large discharge capacity automobile compare, light car is more fashion, practicality, convenience, economic often.
All there is problem in each large automobile vendor both at home and abroad in small displacement vehicle, solves thinking for reduce engine loading or increase charging turbine set as far as possible, from this two aspect, promotes engine performance.For 1.5L driving engine, because 1.5L engine swept volume self is less, the load surplus of driving engine is less, and performance is limited, shows as tractive performance not good, so automobile cannot be taken into account dynamic property when opening air-conditioning, therefore can lose on power.
Chinese patent application publication number: CN102506021A, application is day on June 20th, 2012 openly, a kind of control setup and method of light car air-conditioning compressor are disclosed, this control setup comprises realizes the Micro-processor MCV of logic control and communication is connected with it CAN Bus circuit, Micro-processor MCV inside is integrated with CAN controller, for receiving and process CAN Bus circuit, upload signal, CAN Bus circuit comprises CAN transceiver, be used for receiving car load and engine status signal, Micro-processor MCV is for control logic computing, and be connected with air-conditioning compressor power-transfer clutch, the in the situation that described control method being opened at vehicle air conditioning, if judgement vehicle is when starting, upward slope or anxious Accelerating running state, control air-conditioning compressor disengaging of clutch, realized according to vehicle driving-cycle and engine operating state, the Based Intelligent Control of Vehicular air-conditioner compressor mode of operation, guarantee the tractive performance of vehicle under the state of turning on the aircondition, improved the fuel economy of car load.The weak point of this invention is, although can guarantee the tractive performance of vehicle when in starting, upward slope or anxious Accelerating running state, can not guarantee when controlling air-conditioning compressor disengaging of clutch the not obvious integrated environment temperature traverse affecting in car.
Summary of the invention
In order to overcome in prior art, there is above-mentioned deficiency in the present invention, provide a kind of guarantee automobile dynamic quality and again the not obvious solution 1.5L driving engine that affects integrated environment temperature traverse in car open air-conditioning and accelerate unable control method.
To achieve these goals, the present invention is by the following technical solutions:
Solve 1.5L driving engine unlatching air-conditioning and accelerate a unable control method, this control method is carried out in the situation that air conditioning for automobiles is opened, and specifically comprises the steps:
(1) the residing gear of judgement Automotive transmission, if gear is now non-forward gear, enters into step (5); If gear is now forward gear, the opening automobile air conditioning function that breaks, and enter into step (2);
(2) by tachogen, detect the engine speed of automobile, detect pedal signal simultaneously, judge that whether automobile is in acceleration mode, if not at acceleration mode, repeat this step; If at acceleration mode, enter into step (3);
(3) break air-conditioning operation of automobile, and detect the time length of disconnected air-conditioning simultaneously, the lasting shortest time limit value that disconnected air-conditioning is wherein set is A, the lasting maximum duration limit value of disconnected air-conditioning is B;
(4) if the time length of disconnected air-conditioning between A and B (comprise A) and do not reach B, while meeting again the condition of disconnected air-conditioning, allow the automobile air-conditioning that break to operate next time, enter into step (2); If the time length of disconnected air-conditioning reaches B, while meeting again the condition of disconnected air-conditioning, do not allow the automobile air-conditioning that break to operate next time, enter into step (5);
(5) the disconnected air conditioning function of closing automobile enters into step (1) simultaneously.
The present invention determines in the process of automobile in travelling by detecting the residing gear of automobile gearbox, so detect the rotating speed of driving engine and the pedal signal of answering in contrast, determine that automobile is in acceleration mode, this just needs the air-conditioning that breaks of automobile now to operate to improve the tractive performance of driving engine, prevent that unable situation from appearring accelerating in driving engine in accelerator, meanwhile, this invention also limits the time length of disconnected air-conditioning, by controlling to avoid automobile because disconnected air-conditioning time course affects the integrated environment temperature traverse in car on the time length of disconnected air-conditioning, also avoid automobile to affect the service life of air-conditioning compressor owing to frequently opening and shutting off air-conditioning simultaneously, reached and guaranteed automobile dynamic quality and the not obvious object that affects integrated environment temperature traverse in car again.
As preferably, in step (1), if gear is now forward gear, when Automotive transmission is during in a file location, enter into step (5); When Automotive transmission is during in second gear and above position, the opening automobile air conditioning function that breaks, and enter into step (2).Prevent that Automotive transmission from significantly affecting integrated environment temperature traverse in car due to the operation of disconnected air-conditioning when a file location.
As preferably, in step (2), described pedal signal is by accelerator pedal position sensor, to detect the threshold signal of pedal aperture, the rotating speed of automobile engine detecting when tachogen turns and when following 1400, when the threshold value of detection pedal signal is greater than 40%, automobile is in acceleration mode; The rotating speed of automobile engine detecting when tachogen turns and when above 2000, and when the threshold value that detects pedal signal is greater than 70%, automobile is in acceleration mode; When rotating speed of automobile engine that tachogen detects is between 1400～2000 turn, when the threshold value that detects pedal signal is the value between 40%～70%, automobile is in acceleration mode.By different rotating speeds, take different pedal signal threshold values is basis for estimation, can greatly improve the tractive performance of driving engine.
As preferably, in step (3), the time of automobile more than the required threshold values reaching of acceleration mode when the time length length of disconnected air-conditioning remains on corresponding engine speed by the threshold value of pedal aperture.Different disconnected air-conditioning time length correspondences are taked different disconnected air-conditioning modes, can, when guaranteeing engine power performance, not affect integrated environment temperature traverse in car.
As preferably, in step (3), it is C that the disconnected air-conditioning time length detecting is set, if when C is less than or equal to A, the disconnected required lasting time of air-conditioning is defaulted as A; If C is between A and B time, the disconnected required lasting time of air-conditioning is defaulted as C; When if C is more than or equal to B, the disconnected required lasting time of air-conditioning is defaulted as B.By controlling the time length of disconnected air-conditioning, reduce as much as possible the impact on integrated environment temperature traverse in car.
As preferably, after automobile breaks air-conditioning operation, air-conditioning operation did not allow again to break in the 10 second time of unlatching air-conditioning.Prevent the frequent disconnection impact larger on the generation in service life of air-conditioning compressor with unlatching of air-conditioning.
As preferably, the lasting shortest time limit value A of described disconnected air-conditioning is 6 seconds, and the lasting maximum duration limit value B of described disconnected air-conditioning is 10 seconds.
The invention has the beneficial effects as follows: the acceleration capability that can obviously improve automobile, employing adds the control method of quick-break air-conditioning, make chaufeur in accelerator, switch air-conditioning compressor, guarantee the tractive performance of driving engine, make the interior integrated environment temperature traverse of car not obvious simultaneously, do not affect chaufeur and passenger's traveling comfort.
Accompanying drawing explanation
Fig. 1 is control flow chart of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
In embodiment as described in Figure 1, a kind of 1.5L of solution driving engine is opened air-conditioning and is accelerated unable control method, and this control method is carried out in the situation that air conditioning for automobiles is opened, and specifically comprises the steps:
(1) the residing gear of judgement Automotive transmission, if gear is now non-forward gear, enters into step (5); If gear is now forward gear, and when Automotive transmission is during in a file location, enter into step (5); If gear is now forward gear, and when Automotive transmission is during in second gear and above position, the opening automobile air conditioning function that breaks, and enter into step (2);
(2) by tachogen, detect the engine speed of automobile, detect pedal signal, pedal signal is by accelerator pedal position sensor, to detect the threshold signal of pedal aperture simultaneously, judges that whether automobile is in acceleration mode, if not at acceleration mode, repeat this step; If at acceleration mode, enter into step (3); Whether concrete to detect automobile as follows in the determining step of acceleration mode: the rotating speed of automobile engine detecting when tachogen turns and when following, when the threshold value of detection pedal signal is greater than 40%, automobile is in acceleration mode 1400; The rotating speed of automobile engine detecting when tachogen turns and when above 2000, and when the threshold value that detects pedal signal is greater than 70%, automobile is in acceleration mode; When rotating speed of automobile engine that tachogen detects is between 1400～2000 turn, when the threshold value that detects pedal signal is the value between 40%～70%, automobile is in acceleration mode;
(3) break air-conditioning operation of automobile, and detect the time length of disconnected air-conditioning simultaneously, the time of automobile more than the required threshold values reaching of acceleration mode when the time length length of disconnected air-conditioning remains on corresponding engine speed by the threshold value of pedal aperture, the lasting shortest time limit value that disconnected air-conditioning is wherein set is A, and the lasting maximum duration limit value of disconnected air-conditioning is B; The method of concrete definite disconnected air-conditioning time length is as follows: it is C that the disconnected air-conditioning time length detecting is set, if when C is less than or equal to A, the disconnected required lasting time of air-conditioning is defaulted as A; If C is between A and B time, the disconnected required lasting time of air-conditioning is defaulted as C; When if C is more than or equal to B, the disconnected required lasting time of air-conditioning is defaulted as B;
(4) if the time length of disconnected air-conditioning between A and B (comprise A) and do not reach B, while meeting again the condition of disconnected air-conditioning, allow the automobile air-conditioning that break to operate next time, enter into step (2); If the time length of disconnected air-conditioning reaches B, while meeting again the condition of disconnected air-conditioning, do not allow the automobile air-conditioning that break to operate next time, enter into step (5);
(5) the disconnected air conditioning function of closing automobile enters into step (1) simultaneously.
In the present invention, after automobile breaks air-conditioning operation, the air-conditioning operation that do not allow again to break in the 10 second time of unlatching air-conditioning, the lasting shortest time limit value A of disconnected air-conditioning is 6 seconds simultaneously, the lasting maximum duration limit value B of disconnected air-conditioning is 10 seconds.
In the present embodiment, in step (2), for the automobile under different rotating speeds, breaking, to operate required pedal signal threshold value as shown in table 1 for air-conditioning.
Table 1 is the disconnected required pedal signal threshold value of air-conditioning under different rotating speeds
| Rotating speed | 800 | 1000 | 1400 | 2000 | 3000 | 4000 | 5000 | 6000 |
| Threshold value (%) | 39.84 | 39.84 | 39.84 | 69.92 | 69.92 | 69.92 | 69.92 | 69.92 |
In the present embodiment, when Automotive transmission is during in the acceleration gear of 3 grades, temperature in automobile is measured to test.In this test, adopt electron temperature instrument, five measurement points measuring respectively in car are normally opened and the temperature of disconnected air-conditioning after the longest 10 seconds at air-conditioning, and test results is shown in Table 2.Wherein: five measurement points measuring in car are respectively air-conditioner air outlet between first line center, front-seat front air-conditioner air outlet, front-seat air-conditioner air outlet near the window, the middle air-conditioner air outlet of rear row and chief aviation pilot's headrest place.
Five measurement point temperature comparison in table 2 Automobile
Employing adds quick-break air-conditioning strategy, is adding the quick-break air-conditioning stage, and the temperature of air-conditioner air outlet rises about 4 degree after disconnected air-conditioning, if chaufeur and passenger can obviously experience the variation of air-conditioner air outlet leaving air temp over against air-conditioner air outlet blowing; The just 0.5 degree left and right but the temperature at chief aviation pilot's headrest place rises after disconnected air-conditioning, in car, integrated environment temperature traverse is not obvious.
In the present embodiment, when Automotive transmission is during in the acceleration gear of 3 grades, adopt respectively disconnected air-conditioning and continuous air-conditioning strategy, making automobile start pedal from idling mode reaches in 2000 times that turn and carries out accelerated test to engine speed, detect automobile and accelerate the needed time, test results is shown in Table 3.
Table 3 starts from idling the pick-up time that pedal turns to rotating speed to 2000
| ? | Disconnected air-conditioning (s) | Continuous air-conditioning (s) |
| Test 1 | 8.4 | 11.5 |
| Test 2 | 8.3 | 11.2 |
| Test 3 | 8.2 | 11.7 |
| Aviation value | 8.3 | 11.6 |
Employing adds quick-break air-conditioning strategy, is adding the quick-break air-conditioning stage, opens disconnected air conditioning function and can obviously improve pick-up of engine.In the situation that not increasing manufacturing cost, can effectively improve small displacement engine at the acceleration capability of opening under airconditioning condition.
Claims (7)
1. solve 1.5L driving engine unlatching air-conditioning and accelerate a unable control method, it is characterized in that, this control method is carried out in the situation that air conditioning for automobiles is opened, and specifically comprises the steps:
(1) the residing gear of judgement Automotive transmission, if gear is now non-forward gear, enters into step (5); If gear is now forward gear, the opening automobile air conditioning function that breaks, and enter into step (2);
(2) by tachogen, detect the engine speed of automobile, detect pedal signal simultaneously, judge that whether automobile is in acceleration mode, if not at acceleration mode, repeat this step; If at acceleration mode, enter into step (3);
(3) break air-conditioning operation of automobile, and detect the time length of disconnected air-conditioning simultaneously, the lasting shortest time limit value that disconnected air-conditioning is wherein set is A, the lasting maximum duration limit value of disconnected air-conditioning is B;
(4) if the time length of disconnected air-conditioning between A and B (comprise A) and do not reach B, while meeting again the condition of disconnected air-conditioning, allow the automobile air-conditioning that break to operate next time, enter into step (2); If the time length of disconnected air-conditioning reaches B, while meeting again the condition of disconnected air-conditioning, do not allow the automobile air-conditioning that break to operate next time, enter into step (5);
(5) the disconnected air conditioning function of closing automobile enters into step (1) simultaneously.
2. a kind of 1.5L of solution driving engine according to claim 1 is opened air-conditioning and is accelerated unable control method, it is characterized in that, in step (1), if gear is now forward gear, when Automotive transmission is during in a file location, enter into step (5); When Automotive transmission is during in second gear and above position, the opening automobile air conditioning function that breaks, and enter into step (2).
3. a kind of 1.5L of solution driving engine according to claim 1 is opened air-conditioning and is accelerated unable control method, it is characterized in that, in step (2), described pedal signal is by accelerator pedal position sensor, to detect the threshold signal of pedal aperture, the rotating speed of automobile engine detecting when tachogen turns and when following 1400, when the threshold value of detection pedal signal is greater than 40%, automobile is in acceleration mode; The rotating speed of automobile engine detecting when tachogen turns and when above 2000, and when the threshold value that detects pedal signal is greater than 70%, automobile is in acceleration mode; When rotating speed of automobile engine that tachogen detects is between 1400～2000 turn, when the threshold value that detects pedal signal is the value between 40%～70%, automobile is in acceleration mode.
4. a kind of 1.5L of solution driving engine according to claim 3 is opened air-conditioning and is accelerated unable control method, it is characterized in that, in step (3), the time of automobile more than the required threshold values reaching of acceleration mode when the time length length of disconnected air-conditioning remains on corresponding engine speed by the threshold value of pedal aperture.
5. a kind of 1.5L of solution driving engine according to claim 4 is opened air-conditioning and is accelerated unable control method, it is characterized in that, in step (3), it is C that the disconnected air-conditioning time length detecting is set, when if C is less than or equal to A, the disconnected required lasting time of air-conditioning is defaulted as A; If C is between A and B time, the disconnected required lasting time of air-conditioning is defaulted as C; When if C is more than or equal to B, the disconnected required lasting time of air-conditioning is defaulted as B.
6. according to a kind of 1.5L of the solution driving engine described in claim 1 or 2 or 3 or 4 or 5, open air-conditioning and accelerate unable control method, it is characterized in that, after automobile breaks air-conditioning operation, air-conditioning operation did not allow again to break in the 10 second time of unlatching air-conditioning.
7. according to a kind of 1.5L of the solution driving engine described in claim 1 or 2 or 3 or 4 or 5, open air-conditioning and accelerate unable control method, it is characterized in that, the lasting shortest time limit value A of described disconnected air-conditioning is 6 seconds, and the lasting maximum duration limit value B of described disconnected air-conditioning is 10 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310754724.0A CN104085397B (en) | 2013-12-31 | 2013-12-31 | The control method that air-conditioning acceleration is unable opened by a kind of 1.5L electromotor that solves |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310754724.0A CN104085397B (en) | 2013-12-31 | 2013-12-31 | The control method that air-conditioning acceleration is unable opened by a kind of 1.5L electromotor that solves |
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| Publication Number | Publication Date |
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| CN104085397A true CN104085397A (en) | 2014-10-08 |
| CN104085397B CN104085397B (en) | 2016-08-31 |
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| CN201310754724.0A Expired - Fee Related CN104085397B (en) | 2013-12-31 | 2013-12-31 | The control method that air-conditioning acceleration is unable opened by a kind of 1.5L electromotor that solves |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105539071A (en) * | 2015-12-23 | 2016-05-04 | 奇瑞汽车股份有限公司 | Automobile traveling control method and system |
| CN108087131A (en) * | 2017-11-21 | 2018-05-29 | 吉利汽车研究院（宁波）有限公司 | For balancing control method of the compressor to vehicle motor torque influence |
| CN112428789A (en) * | 2020-11-09 | 2021-03-02 | 东风汽车集团有限公司 | Method and system for graded management of electric load of engine |
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| KR20010097809A (en) * | 2000-04-26 | 2001-11-08 | 류정열 | Instantaneous stop device of the air conditioner at two-speed gear starting-up |
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| CN112428789A (en) * | 2020-11-09 | 2021-03-02 | 东风汽车集团有限公司 | Method and system for graded management of electric load of engine |
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| Publication number | Publication date |
|---|---|
| CN104085397B (en) | 2016-08-31 |
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