CN102146849A - Method and system for controlling idling of engine - Google Patents
Method and system for controlling idling of engine Download PDFInfo
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- CN102146849A CN102146849A CN2010101070709A CN201010107070A CN102146849A CN 102146849 A CN102146849 A CN 102146849A CN 2010101070709 A CN2010101070709 A CN 2010101070709A CN 201010107070 A CN201010107070 A CN 201010107070A CN 102146849 A CN102146849 A CN 102146849A
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Abstract
The invention discloses a method and a system for controlling idling of an engine. The method for controlling the idling of the engine comprises the following steps of: detecting an ambient temperature; controlling the idling of the engine to reach a first preset value according to the ambient temperature; and when the start time of the engine reaches a preset time or the water temperature of the engine reaches a preset water temperature, controlling the idling of the engine to reduce to a second preset value. In the method and the system for controlling the idling of the engine, the idling of the started engine is controlled according to the ambient temperature and the reduced idling of the engine is controlled according to the start time of the engine or the water temperature of the engine, so that the idling of the engine is reduced and the engine can generate power normally at the same time, and the normal running of a vehicle can be guaranteed.
Description
Technical field
The present invention relates to a kind of engine technology, relate in particular to a kind of Eng ine Idling Control method and system.
Background technique
Along with the requirement to motor improves constantly, respond the call of energy-saving and emission-reduction simultaneously, engine emission requires Europe III, Europe IV even higher till now from original Europe I, Europe II, and oil consumption requires more and more lower.
At present, in order to reach the purpose that reduces oil consumption, noise and reduce effulent, require engine idle lower, rotating speed during idling is reduced to present 600～650r/min from 700 original～750r/min, but, one of them condition of will generating electricity generator will satisfy exactly builds pressure rotating speed: 1200～1300r/min, once after generator set up power generation conditions, generator just can self-excitation generating under very low rotating speed.And engine idle is when 600～650r/min, if generator and motor velocity ratio are 2, then the rotating speed of generator when engine idle is 600～650 * 2=1200～1300r/min, build pressure rotating speed 1300～1400r/min or be in 1 boundary's point a little less than generator, generator may not generate electricity when idling, causes car load normally to move.
In addition, the reduction of engine idle also can cause following problem: turn to idling heavy; Motor is broken original thermal equilibrium owing to rotating speed is low, cause water temperature, oil temperature height, low fuel pressure; Air compressor causes and inflates slowly because rotating speed is low, and compressibility is also low; Cause gear shift, reversing to stop working or the like.
Summary of the invention
The objective of the invention is to, a kind of Eng ine Idling Control method and system are provided, make generator be higher than and build pressure rotating speed, not generation outage.
For achieving the above object, according to an aspect of the present invention, provide a kind of Eng ine Idling Control method, comprising: the testing environment temperature; Reach first predefined value according to described ambient temperature control engine idle; When the described engine start time arrives Preset Time or engine water temperature and reaches default water temperature, control described transmitter idling and be reduced to second predefined value.
For achieving the above object, according to another aspect of the present invention, provide a kind of engine idling control system, comprising: environment temperature sensor is used for the testing environment temperature and is sent to electronic controller; Speed probe is used to measure engine speed, and engine speed is sent to electronic controller; Electronic controller is used for picking up counting after engine start, and reaches first predefined value according to ambient temperature control engine idle, reaches second predefined value according to engine start time and transmitter rotating speed control engine idle.
For achieving the above object, according to another aspect of the present invention, provide a kind of engine idling control system, comprising: environment temperature sensor is used for the testing environment temperature and is sent to electronic controller; Cooling-water temperature sensor is used to measure in-engine water temperature, and water temperature is sent to electronic controller; Speed probe is used to measure engine speed, and engine speed is sent to electronic controller; Electronic controller is used for reaching first predefined value according to ambient temperature control engine idle, reaches second predefined value according to water temperature and transmitter rotating speed control engine idle.
Eng ine Idling Control method and system of the present invention, by starting the back idling according to ambient temperature control transmitter, and according to the engine idle after engine start time or the engine water temperature control reduction, motor normal power generation when making the engine idle reduction, the normal operation that keeps vehicle.
Description of drawings
Fig. 1 is an Eng ine Idling Control method flow diagram of the present invention;
Fig. 2 is that engine idle of the present invention and ambient temperature concern schematic representation;
Fig. 3 is an engine idling control system structural drawing of the present invention;
Fig. 4 is an engine idling control system detailed structure view of the present invention.
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
As shown in Figure 1, Eng ine Idling Control method of the present invention may further comprise the steps:
Be specially according to described ambient temperature control oil sprayer and improve fuel injection quantity, make engine start; When the transmitter idling reached described first predefined value, the fuel injection quantity of controlling described oil sprayer made engine idle maintain first predefined value;
Be specially according to described engine start time or engine water temperature control oil sprayer reduction fuel injection quantity, make engine idle be reduced to second predefined value; When the transmitter idling reached described second predefined value, the fuel injection quantity of controlling described oil sprayer made engine idle maintain second predefined value.
As shown in Figure 2, specifically comprise following several situation:
(1) when described ambient temperature is lower than-40 ℃, idling is 1200r/min during the control engine start; When behind the engine start 15 minutes the time, control described transmitter idling and be reduced to 650r/min;
(2) when described ambient temperature is-10 ℃～10 ℃, rotating speed is 900r/min during the control engine start; When behind the engine start 15 minutes the time, control described transmitter idling and be reduced to 650r/min;
(3) when described ambient temperature is higher than 10 ℃, rotating speed is 800r/min during the control engine start; When 5 minutes or engine water temperature behind the engine start reach 60 ℃, control described transmitter idling and be reduced to 650r/min.
As shown in Figure 2, to the electrical control system for engine of the control of not support time not, can adopt water temperature control:
(1) when described ambient temperature is lower than-40 ℃, idling is 1200r/min during the control engine start; When engine water temperature reaches 60 ℃, control described transmitter idling and be reduced to 650r/min;
(2) when described ambient temperature is-10 ℃～10 ℃, rotating speed is 900r/min during the control engine start; When engine water temperature reaches 60 ℃, control described transmitter idling and be reduced to 650r/min;
(3) when described ambient temperature is higher than 10 ℃, rotating speed is 800r/min during the control engine start; When engine water temperature reaches 60 ℃, control described transmitter idling and be reduced to 650r/min.
As shown in Figure 3, engine idling control system of the present invention comprises:
Environment temperature sensor 302 is used for the testing environment temperature and is sent to electronic controller;
Speed probe 308 is used to measure engine speed, and engine speed is sent to electronic controller;
Electronic controller (ECU) 306 is used for picking up counting after engine start; And reach first predefined value according to ambient temperature control engine idle, reach second predefined value according to engine start time and transmitter rotating speed control engine idle.
Wherein, electronic controller is controlled the transmitter idling by the fuel injection quantity of oil sprayer 210 in the control motor.
As Fig. 2 and shown in Figure 4, the concrete working procedure of engine idling control system is:
1, when detecting ambient temperature, environment temperature sensor 4 is lower than-40 ℃, during engine start, ECU1 sends the oil spout instruction for oil sprayer 7, high pressure oil is from high-pressure service pump 5 to high-voltage tube 6, give oil sprayer 7 for high pressure oil, allow its engine start, and feed back to ECU1 recording engine speed by speed probe, ECU1 controls by PID, automatically adjust fuel injection quantity, make the rotating speed of motor reach the initial speed 1200r/min of setting, after engine speed reaches initial speed, the ECU1 internal timer picks up counting, after arriving 15 minutes, ECU1 sends new oil spout instruction for oil sprayer 7, controls by PID equally, automatically adjust fuel injection quantity, allow engine speed reduce to the steady-state speed of 650r/min.
2, in like manner, when environment temperature sensor 4 detects ambient temperature is-10 ℃～10 ℃, during engine start, ECU sends the oil spout instruction for oil sprayer 7, allows the initial speed after its engine start be 900r/min, afterwards, the ECU1 internal timer picks up counting, after arriving 15 minutes, ECU1 sends new oil spout instruction for oil sprayer 7, allows the engine speed be the steady-state speed of 650r/min.
3, in like manner, when environment temperature sensor 4 detects ambient temperature for more than-10 ℃, during engine start, ECU1 sends the oil spout instruction for oil sprayer 7, allows the initial speed after its engine start be 800r/min, afterwards, the ECU1 internal timer picks up counting, after arriving 5 minutes, ECU1 sends new oil spout instruction for oil sprayer 7, allows motor change the steady-state speed of reducing to 650r/min.
In view of some automatical control system disabled time control, then available water temperature control, engine idling control system of the present invention as shown in Figure 3 also comprises:
Cooling-water temperature sensor 304 is used to measure in-engine water temperature, and water temperature is sent to electronic controller; Electronic controller 306 is used for reaching second predefined value according to water temperature and transmitter rotating speed control engine idle.
As shown in Figure 4, the concrete working procedure of engine idling control system is:
1, when detecting ambient temperature, environment temperature sensor 4 is lower than-40 ℃, during engine start, ECU1 carries out the idling strategy, ECU1 sends the oil spout instruction for oil sprayer 7, high pressure oil is from high-pressure service pump 5 to high-voltage tube 6, give oil sprayer 7 for high pressure oil, allow its engine start, and feed back to ECU1 recording engine speed by speed probe, ECU1 is by PID (proportional-integral derivative controller) control, automatically adjust fuel injection quantity, make the rotating speed of motor reach the initial speed 1200r/min of setting, after engine speed reached initial speed, the ECU1 temperature detecting unit detected the engine water temperature that transmits from cooling-water temperature sensor 3, after detecting engine water temperature and reaching 60 ℃, ECU1 sends new oil spout instruction for oil sprayer 7, by PID control, adjust fuel injection quantity automatically equally, allow engine speed reduce to the steady-state speed of 650r/min.
2, in like manner, when environment temperature sensor 4 detects ambient temperature is-10 ℃～10 ℃, during engine start, ECU1 sends the oil spout instruction for oil sprayer 7, allows the initial speed after its engine start be 900r/min, afterwards, the ECU1 temperature detecting unit detects the engine water temperature that transmits from cooling-water temperature sensor 3, after detecting engine water temperature and reaching 60 ℃, ECU1 sends new oil spout instruction for oil sprayer 7, allows engine speed reduce to the steady-state speed of 650r/min.
3, in like manner, when environment temperature sensor 4 detects ambient temperature for more than-10 ℃, during engine start, ECU1 sends the oil spout instruction for oil sprayer 7, allows the initial speed after its engine start be 800r/min, afterwards, the ECU1 temperature detecting unit detects the engine water temperature that transmits from cooling-water temperature sensor 3, after detecting engine water temperature and reaching 60 ℃, ECU1 sends new oil spout instruction for oil sprayer 7, allows engine speed reduce to the steady-state speed of 650r/min.
Eng ine Idling Control method and system of the present invention, by starting the back idling according to ambient temperature control transmitter, and according to the engine idle after engine start time or the engine water temperature control reduction, motor normal power generation when making the engine idle reduction, the normal operation that keeps vehicle.Simultaneously, other have also been avoided because engine idle reduction bring is heavy as turning to idling; Motor is broken original thermal equilibrium owing to rotating speed is low, cause water temperature, oil temperature height, low fuel pressure; Air compressor causes and inflates slowly because rotating speed is low, and compressibility is also low; Cause problems such as gear shift, reversing be flame-out.
It should be noted that: above embodiment is only unrestricted in order to explanation the present invention, and the present invention also is not limited in above-mentioned giving an example, and all do not break away from the technological scheme and the improvement thereof of the spirit and scope of the present invention, and it all should be encompassed in the claim scope of the present invention.
Claims (9)
1. an Eng ine Idling Control method is characterized in that, comprising:
The testing environment temperature;
Reach first predefined value according to described ambient temperature control engine idle;
When the described engine start time arrives Preset Time or engine water temperature and reaches default water temperature, control described transmitter idling and be reduced to second predefined value.
2. Eng ine Idling Control method according to claim 1 is characterized in that,
When described ambient temperature was lower than-40 ℃, idling was 1200r/min during the control engine start;
When 15 minutes or engine water temperature behind the engine start reach 60 ℃, control described transmitter idling and be reduced to 650r/min.
3. Eng ine Idling Control method according to claim 1 is characterized in that,
When described ambient temperature was-10 ℃～10 ℃, rotating speed was 900r/min during the control engine start;
When 15 minutes or engine water temperature behind the engine start reach 60 ℃, control described transmitter idling and be reduced to 650r/min.
4. Eng ine Idling Control method according to claim 1 is characterized in that,
When described ambient temperature was higher than 10 ℃, rotating speed was 800r/min during the control engine start;
When 5 minutes or engine water temperature behind the engine start reach 60 ℃, control described transmitter idling and be reduced to 650r/min.
5. according to any described Eng ine Idling Control method in the claim 1 to 4, it is characterized in that the described operation that reaches first predefined value according to described ambient temperature control engine idle comprises:
Improve fuel injection quantity according to described ambient temperature control oil sprayer, make engine start;
When the transmitter idling reached described first predefined value, the fuel injection quantity of controlling described oil sprayer made engine idle maintain first predefined value.
6. according to any described Eng ine Idling Control method in the claim 1 to 4, it is characterized in that the operation that the described transmitter idling of described control is reduced to second predefined value comprises:
According to described engine start time or engine water temperature control oil sprayer reduction fuel injection quantity, make engine idle be reduced to second predefined value;
When the transmitter idling reached described second predefined value, the fuel injection quantity of controlling described oil sprayer made engine idle maintain second predefined value.
7. an engine idling control system is characterized in that, comprising:
Environment temperature sensor is used for the testing environment temperature and is sent to electronic controller;
Speed probe is used to measure engine speed, and engine speed is sent to electronic controller;
Electronic controller is used for picking up counting after engine start, and reaches first predefined value according to ambient temperature control engine idle, reaches second predefined value according to engine start time and transmitter rotating speed control engine idle.
8. engine idling control system according to claim 7 is characterized in that, described electronic controller is used for controlling the transmitter idling by the fuel injection quantity of control motor oil sprayer.
9. an engine idling control system is characterized in that, comprising:
Environment temperature sensor is used for the testing environment temperature and is sent to electronic controller;
Cooling-water temperature sensor is used to measure in-engine water temperature, and water temperature is sent to electronic controller;
Speed probe is used to measure engine speed, and engine speed is sent to electronic controller;
Electronic controller is used for reaching first predefined value according to ambient temperature control engine idle, reaches second predefined value according to water temperature and transmitter rotating speed control engine idle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101070709A CN102146849A (en) | 2010-02-05 | 2010-02-05 | Method and system for controlling idling of engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101070709A CN102146849A (en) | 2010-02-05 | 2010-02-05 | Method and system for controlling idling of engine |
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| CN102146849A true CN102146849A (en) | 2011-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101070709A Pending CN102146849A (en) | 2010-02-05 | 2010-02-05 | Method and system for controlling idling of engine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312736A (en) * | 2011-10-17 | 2012-01-11 | 奇瑞汽车股份有限公司 | Idling control method for engine of automobile |
| CN103089467A (en) * | 2011-11-01 | 2013-05-08 | 福特环球技术公司 | Method and system for engine control |
| CN106870182A (en) * | 2016-10-26 | 2017-06-20 | 奇瑞汽车股份有限公司 | A kind of engine target idling speed control method |
| CN110159438A (en) * | 2019-04-18 | 2019-08-23 | 浙江吉利控股集团有限公司 | A kind of Eng ine Idling Control method, device and equipment |
| CN110985221A (en) * | 2019-11-15 | 2020-04-10 | 深圳市元征科技股份有限公司 | Idle speed adjusting method and device, vehicle-mounted equipment and readable storage medium |
| CN111923690A (en) * | 2020-08-20 | 2020-11-13 | 湖南泰德汽车空调有限公司 | Ambient temperature acquisition and display method and system for automobile air conditioning system and storage medium |
| CN113153549A (en) * | 2021-04-07 | 2021-07-23 | 东风柳州汽车有限公司 | Control method and system for improving performance of engine after starting and storage medium |
| CN113565955A (en) * | 2021-06-17 | 2021-10-29 | 东风汽车集团股份有限公司 | Vehicle, gearbox, and control method and control device for gearbox |
-
2010
- 2010-02-05 CN CN2010101070709A patent/CN102146849A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312736A (en) * | 2011-10-17 | 2012-01-11 | 奇瑞汽车股份有限公司 | Idling control method for engine of automobile |
| CN102312736B (en) * | 2011-10-17 | 2014-10-01 | 奇瑞汽车股份有限公司 | Idling control method for engine of automobile |
| CN103089467A (en) * | 2011-11-01 | 2013-05-08 | 福特环球技术公司 | Method and system for engine control |
| CN106870182A (en) * | 2016-10-26 | 2017-06-20 | 奇瑞汽车股份有限公司 | A kind of engine target idling speed control method |
| CN110159438A (en) * | 2019-04-18 | 2019-08-23 | 浙江吉利控股集团有限公司 | A kind of Eng ine Idling Control method, device and equipment |
| CN110159438B (en) * | 2019-04-18 | 2022-06-03 | 浙江吉利控股集团有限公司 | Engine idling control method, device and equipment |
| CN110985221A (en) * | 2019-11-15 | 2020-04-10 | 深圳市元征科技股份有限公司 | Idle speed adjusting method and device, vehicle-mounted equipment and readable storage medium |
| CN110985221B (en) * | 2019-11-15 | 2022-06-17 | 深圳市元征科技股份有限公司 | Idle speed adjusting method and device, vehicle-mounted equipment and readable storage medium |
| CN111923690A (en) * | 2020-08-20 | 2020-11-13 | 湖南泰德汽车空调有限公司 | Ambient temperature acquisition and display method and system for automobile air conditioning system and storage medium |
| CN113153549A (en) * | 2021-04-07 | 2021-07-23 | 东风柳州汽车有限公司 | Control method and system for improving performance of engine after starting and storage medium |
| CN113565955A (en) * | 2021-06-17 | 2021-10-29 | 东风汽车集团股份有限公司 | Vehicle, gearbox, and control method and control device for gearbox |
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Application publication date: 20110810 |