CN202851169U - Engine double closed-loop controller - Google Patents
Engine double closed-loop controller Download PDFInfo
- Publication number
- CN202851169U CN202851169U CN2012202618503U CN201220261850U CN202851169U CN 202851169 U CN202851169 U CN 202851169U CN 2012202618503 U CN2012202618503 U CN 2012202618503U CN 201220261850 U CN201220261850 U CN 201220261850U CN 202851169 U CN202851169 U CN 202851169U
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- China
- Prior art keywords
- closed loop
- engine
- control
- automobile
- ecu
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003921 oil Substances 0.000 claims description 7
- 239000000295 fuel oil Substances 0.000 claims description 5
- 239000000446 fuel Substances 0.000 abstract description 11
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 238000002347 injection Methods 0.000 abstract description 6
- 239000007924 injection Substances 0.000 abstract description 6
- 238000012545 processing Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 abstract 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
- 229910002091 carbon monoxide Inorganic materials 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 description 12
- 238000011217 control strategy Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Exhaust Gas After Treatment (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The utility model discloses an engine double closed-loop controller comprising an engine, a cylinder head, a throttle body, an oxygen sensor, an oil injector, a secondary gas supply duty ratio solenoid valve and an electronic control unit (ECU). An engine exhaust emission air-fuel ratio is coupled back to the ECU through the oxygen sensor, and after the processing of the ECU the injection quantity of the oil injector is controlled, a closed-loop inside the engine is carried out, and a duty ratio of the secondary gas supply duty ratio solenoid valve is controlled to control a gas supply quantity of an exhaust system, and a closed-loop outside the engine is carried out. The controller is used for an electronic fuel injection system of an automobile and a motorcycle and an electric control carburetor system of the automobile and the motorcycle, the engine is enabled to control an exhaust emission air-fuel ratio before accessing accelerant effectively under different working conditions, and accelerant conversion efficiency is improved; and the gas supply quantity of the exhaust system is controlled before the accelerant is lighted off, carbon monoxide (CO) in engine exhaust emission is enabled to be oxidized effectively, exhaust gas emission under the starting working condition, the transition working condition, and the cold machine state can be effectively reduced, exhaust gas emission of a whole vehicle is effectively reduced, the purpose of energy conservation and environmental protection is achieved, and engine performance at the same time is not affected.
Description
Technical field
The utility model relates to a kind of internal-combustion engine lambda sensor closed loop controller, especially with the automobile lambda sensor closed loop controller relevant with motorcycle industry.
Background technique
At present, single closed loop control that automobile and motorcycle industry adopt that is: is carried out closed loop in the motor machine by lambda sensor closed loop control oil sprayer or other single final controlling element.Can not effectively control exhaust emissions like this, reduce the cost of reprocessing.Particularly before the catalyst ignition or motor when being in open loop situations, can't effectively control the air fuel ratio before the catalyst, cause the catalyst conversion ratio to descend, cause discharging to raise, the countermeasure cost increases.
Single closed loop control problem that automobile and motorcycle engine adopt has 2 kinds of solutions at present, increases exactly auxiliary device, but defectiveness:
1. strengthen the catalyst volume, improve the discharging conversion ratio, can increase integral vehicle cost but do like this, also can increase the engine exhaust resistance, engine power performance is descended.
2. increase the EGR valve, improve the discharging conversion ratio, can increase integral vehicle cost but do so also, reduce engine power performance, cause oil consumption to raise.
Thereby also do not have at present a kind of really effective control engine air fuel ratio, improve the technological scheme of catalyst transformation efficiency.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of simple in structure, good reliability, motor is changed little, that cost is low a kind of motor double-loop control strategy; It makes motor effective exhaust air-fuel ratio of controlling before entering catalyst under different operating modes, improves the catalyst conversion efficiency, reduces exhaust emissions, does not affect again the performance of motor simultaneously.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of double-loop control strategy of the lambda sensor reponse system for automobile, motorcycle engine comprises motor, cylinder head, throttle body, lambda sensor, oil sprayer, secondary air compensating duty solenoids, ECU.By lambda sensor the engine exhaust air-fuel ratio feedback is arrived ECU, ECU is by the emitted dose of control oil sprayer after processing, the duty that carries out the interior closed loop of motor machine and control secondary air compensating duty solenoids is recently controlled the air compensation of vent systems, carries out the outer closed loop of machine.Mainly the fuel injection amount with oil-fired system carries out closed loop in the motor machine when engine fuel oil system is in the closed loop state, or assists closed loop control by the air compensation of vent systems.The air compensation of recently controlling vent systems by the duty of control secondary air compensating duty solenoids when engine fuel oil system is in open loop situations carries out closed loop outside the machine, and the secondary air compensating duty solenoids can be controlled by ECU air mass flow and the switching of tonifying Qi.This control strategy is used for electric injection system and the ELECTRONIC CONTROLLED CARBURETOR SYSTEM of automobile, motorcycle, or engine management system effectively reduces exhaust emissions to improving catalyst conversion ratio successful.
The invention has the beneficial effects as follows: because motor changes double-loop control strategy into, make motor effective exhaust air-fuel ratio of controlling before entering catalyst under different operating modes, improve the catalyst conversion efficiency; And control enters the air compensation of vent systems before the catalyst ignition, make CO the efficient oxidation in the engine exhaust, effectively reduce the exhaust emissions under state of starting operating, transient working condition and the cold machine state, effectively reduce the car load exhaust emissions, reach the present of energy-conserving and environment-protective, do not affect again the performance of motor simultaneously.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is structural representation of the present invention;
Embodiment
With reference to Fig. 1, a kind of double-loop control strategy of the lambda sensor reponse system for automobile, motorcycle engine comprises motor 1, cylinder head 2, throttle body 2, lambda sensor 4, oil sprayer 5, secondary air compensating duty solenoids 6, ECU7.By lambda sensor 4 motor 1 exhaust air-fuel ratio is fed back to ECU7, ECU7 is by the emitted dose of control oil sprayer 5 after processing, the duty that carries out the interior closed loop of motor 1 machine and control secondary air compensating duty solenoids 6 is recently controlled the air compensation of vent systems, carries out the outer closed loop of machine.When the oil-fired system of motor 1 is in the closed loop state, mainly carry out closed loop in motor 1 machine with oil-fired system control fuel injection amount, or assist closed loop by the vent systems tonifying Qi; The air compensation of recently controlling vent systems by the duty of control secondary air compensating duty solenoids 6 when motor 1 oil-fired system is in open loop situations carries out closed loop outside the machine.Secondary air compensating duty solenoids 6 can be controlled by ECU air mass flow and the switching of tonifying Qi.This control strategy is used for electric injection system and the ELECTRONIC CONTROLLED CARBURETOR SYSTEM of automobile, motorcycle, or engine management system effectively reduces exhaust emissions to improving catalyst conversion ratio successful.
Claims (3)
1. a lambda sensor that is used for automobile, motorcycle engine feeds back two closed loop controllers, comprise motor (1), cylinder head (2), throttle body (3), lambda sensor (4), oil sprayer (5), secondary air compensating duty solenoids (6), ECU(7), outlet pipe (8) is characterized in that: the described pair of closed loop controller refers to be undertaken by lambda sensor feedback control fuel oil supply system that the air compensation of closed loop and control vent systems carries out the outer closed loop of machine in the machine.
2. a kind of lambda sensor for automobile, motorcycle engine according to claim 1 feeds back two closed loop controllers, it is characterized in that: when engine management system is in the closed loop state, mainly carry out closed loop control in the motor machine with fuel oil supply system, or assist closed loop control by the vent systems tonifying Qi; The air compensation of recently controlling vent systems by the duty of control secondary air compensating duty solenoids when engine fuel oil system is in open loop situations carries out closed loop outside the machine.
3. a kind of lambda sensor for automobile, motorcycle engine according to claim 1 feeds back two closed loop controllers, and it is characterized in that: described secondary air compensating duty solenoids can be controlled by ECU air mass flow and the switching of tonifying Qi.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202618503U CN202851169U (en) | 2012-06-05 | 2012-06-05 | Engine double closed-loop controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202618503U CN202851169U (en) | 2012-06-05 | 2012-06-05 | Engine double closed-loop controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851169U true CN202851169U (en) | 2013-04-03 |
Family
ID=47982377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202618503U Expired - Fee Related CN202851169U (en) | 2012-06-05 | 2012-06-05 | Engine double closed-loop controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851169U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443211A (en) * | 2016-01-05 | 2016-03-30 | 北京卡达克汽车检测技术中心 | Catalyst air supplement equipment for SBC circulation and control system thereof |
| CN109839821A (en) * | 2019-01-17 | 2019-06-04 | 哈尔滨工程大学 | A kind of marine diesel BP neural network burning-revolving speed double-closed-loop control method |
-
2012
- 2012-06-05 CN CN2012202618503U patent/CN202851169U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443211A (en) * | 2016-01-05 | 2016-03-30 | 北京卡达克汽车检测技术中心 | Catalyst air supplement equipment for SBC circulation and control system thereof |
| CN109839821A (en) * | 2019-01-17 | 2019-06-04 | 哈尔滨工程大学 | A kind of marine diesel BP neural network burning-revolving speed double-closed-loop control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170527 Address after: 518000 Guangdong city of Shenzhen province Baoan District Shiyan street Tong Tau Road No. 1 in Yuntai Technology Industrial Park 10 5 floor E District Patentee after: Shenzhen Yili Technology Co., Ltd. Address before: 518000 Guangdong city of Shenzhen province Nanshan District Taoyuan Taoyuan gold and 11F gold road building Co-patentee before: Xie Huishuang Patentee before: Zhang Yuhui |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20180605 |