CN106150633A - Exhaust shutter is for arranging control method and the system of warm management - Google Patents
Exhaust shutter is for arranging control method and the system of warm management Download PDFInfo
- Publication number
- CN106150633A CN106150633A CN201610770163.7A CN201610770163A CN106150633A CN 106150633 A CN106150633 A CN 106150633A CN 201610770163 A CN201610770163 A CN 201610770163A CN 106150633 A CN106150633 A CN 106150633A
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- CN
- China
- Prior art keywords
- temperature
- exhaust shutter
- exhaust
- warm
- preset
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N9/00—Electrical control of exhaust gas treating apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
- F02D9/06—Exhaust brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/04—Methods of control or diagnosing
- F01N2900/0416—Methods of control or diagnosing using the state of a sensor, e.g. of an exhaust gas sensor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
- F01N2900/06—Parameters used for exhaust control or diagnosing
- F01N2900/16—Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
- F01N2900/1626—Catalyst activation temperature
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses a kind of exhaust shutter for arranging the control method of warm management, including step: 1) gather whether electromotor or car load have braking requirement；2) if there being braking requirement, closing exhaust shutter, if there is no braking requirement, performing next step；3) obtain the temperature value of selective catalytic reducing agent upstream, send when the temperature value no more than preset temperature obtained and arrange warm regulatory requirement: 4) regulation exhaust throttle valve opening, make waste gas instruction energy Q maximum；5) until the temperature value of selective catalytic reducing agent upstream recovers normal aperture more than preset temperature, exhaust shutter.Exhaust shutter disclosed herein not only has control during braking requirement, also has the application during row's warm management, by regulating the aperture of exhaust shutter, and changes the change of waste gas instruction energy Q, thus reaches the control to row's warm management.The invention also discloses a kind of exhaust shutter for arranging the system of warm management.
Description
Technical field
The present invention relates to technical field of engines, specifically, relate to a kind of exhaust shutter for arranging warm management
Control method and system.
Background technology
Existing exhaust shutter only serves exhaust brake function, only opens when there being exhaust brake demand.Existing aerofluxus
Throttle functionality is single, it is impossible to the row's of realization temperature management function so that apparatus structure is complicated.
Therefore, how to provide the row of a kind of exhaust shutter to warm management control method, be that those skilled in the art are current
The technical issues that need to address.
Summary of the invention
In view of this, the row that the invention provides a kind of exhaust shutter warms management control method, to increase aerofluxus joint
The function of stream valve.Present invention also offers row's temperature heat management system of a kind of above-mentioned exhaust shutter.
For achieving the above object, the present invention provides following technical scheme:
A kind of exhaust shutter is for arranging the control method of warm management, including step:
1) gathering electromotor or whether car load has braking requirement, if there being braking requirement, closing exhaust shutter, if not having
Braking requirement then performs next step；
2) obtain the temperature value of selective catalytic reducing agent upstream, send when the temperature value no more than preset temperature obtained
Row's warm regulatory requirement；
3) regulation exhaust throttle valve opening, makes waste gas instruction energy Q maximum, described waste gas instruction energy Q=(Mair+
Mfuel)*T4, wherein, MairFor air input of engine by air；MfuelFor electromotor oil mass；T4Temperature value for upstream of catalytic converter；
4) until the temperature value of selective catalytic reducing agent upstream is more than preset temperature, exhaust shutter recovers the most normally opened
Degree.
Preferably in control method, step 3) and step 4) between also include step 31):
In Preset Time, the temperature value of selective catalytic reducing agent upstream is not more than preset temperature all the time, then calculate choosing
The rate of temperature change of selecting property catalytic reducer upstream, when this rate of temperature change is not more than preset temperature rate of change, then reduces row
Gas throttle valve opening is to minimum.
A kind of exhaust shutter is used for arranging temperature heat management system, comprising:
For obtaining braking requirement and the ECU of row's warm regulatory requirement；
For detecting the intake flow sensor of air input of engine by air, described intake flow sensor and described ECU
Signal connects；
It is arranged on the first temperature sensor of selective catalytic reducing agent upstream, described first temperature sensor and described electricity
Control cell signal connects；
It is arranged on the second temperature sensor of upstream of catalytic converter, described second temperature sensor and described ECU
Signal connects；
Exhaust shutter, described ECU controls described exhaust shutter and closes when collecting braking requirement；Work as collection
During to row's warm regulatory requirement, regulate exhaust throttle valve opening, until the temperature that the first temperature sensor detects is more than presetting
Value, described exhaust shutter recovers initial opening.
Preferably, above-mentioned exhaust shutter is used for arranging in temperature heat management system, described ECU gather electromotor or
Whether car load has braking requirement, if there being braking requirement, controlling described exhaust shutter and closing.
Preferably, above-mentioned exhaust shutter is used for arranging in temperature heat management system, when ECU sends row's temperature treatment
After demand, regulate described exhaust throttle valve opening, make waste gas instruction energy Q maximum, until described first temperature sensor detection
The temperature arrived is more than preset value；
Described waste gas instruction energy Q=(Mair+Mfuel)*T4, wherein, Mair is air input of engine by air；MfuelFor electromotor
Oil mass；T4The temperature detected for described second temperature sensor.
Preferably, above-mentioned exhaust shutter is used for arranging in temperature heat management system, and described ECU is additionally operable to calculate the
The rate of temperature change that one temperature sensor detects, and compare with preset temperature rate of change, preset when rate of temperature change is not more than
During rate of temperature change, then reduce exhaust throttle valve opening to minimum.
Preferably, above-mentioned exhaust shutter is used for arranging in temperature heat management system, described ECU gather described the
Temperature value on one sensor compares with preset value, sends row when temperature value no more than preset value on described first sensor
Warm regulatory requirement.
Understand via above-mentioned technical scheme, the invention discloses a kind of exhaust shutter for arranging the control of warm management
Method, it includes step: 1) gather electromotor or whether car load has braking requirement；2) if there being braking requirement, exhaust throttle is closed
Valve, if not having braking requirement, performs next step；3) temperature value of selective catalytic reducing agent upstream is obtained, when the temperature obtained
Value sends row's warm regulatory requirement when being not more than preset temperature: 4) regulation exhaust throttle valve opening, makes waste gas instruction energy Q
Greatly；5) until the temperature value of selective catalytic reducing agent upstream recovers normal aperture more than preset temperature, exhaust shutter.Pass through
Above-mentioned control method, it can be seen that control when exhaust shutter disclosed herein not only has a braking requirement, also has
Application during row's warm management, by regulating the aperture of exhaust shutter, and changes the change of waste gas instruction energy Q,
Thus reach the control to row's warm management.
Additionally, the row's of optimizing warm manages the control function under cold car state, first rapid with maximum waste gas instruction energy
Add heat treatment, then make post-processing temperature reach target set point.Warm way to manage relative to present row can faster add
Heat treatment, improves post processing transformation efficiency, the risk that reduction urea crystals risk and discharge are transfinited.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to
The accompanying drawing provided obtains other accompanying drawing.
The flow chart of row's warm management control method of the exhaust shutter that Fig. 1 provides for the embodiment of the present invention；
The connection figure of row's temperature heat management system of the exhaust shutter that Fig. 2 provides for the embodiment of the present invention.
Detailed description of the invention
The core of the present invention is to provide the row of a kind of exhaust shutter and warms management control method, to increase exhaust shutter
Function.Another core of the present invention is to provide row's temperature heat management system of a kind of above-mentioned exhaust shutter.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, the present invention discloses a kind of exhaust shutter for arrange warm management control method, its bag with
Lower step:
Step S1: whether interpretation has braking requirement.
Gathering electromotor or whether car load has braking requirement, the effect the most basic due to exhaust shutter is aerofluxus system
Dynamic, accordingly, it would be desirable to first meet automatic demand.
Then need when there being braking requirement to close exhaust shutter, then perform next step when there is no braking requirement.
Step S2: whether interpretation has thermal management requirements.
Obtain the temperature value of selective catalytic reducing agent upstream, send row when the temperature value no more than preset temperature obtained
Warm regulatory requirement；When the temperature value obtained is not more than preset temperature, then exhaust shutter recovers normal aperture, the most just
Normally opened degree is the aperture being able to maintain that current state stable operation, can be set according to actual demand, does not do concrete at this
Limit.
Step S3: regulation exhaust throttle valve opening makes Q maximum.
Waste gas instruction energy Q=(Mair+Mfuel)*T4, wherein, MairFor air input of engine by air；MfuelFor electromotor oil mass；
T4Temperature value for upstream of catalytic converter.After electromotor determines, the biggest air input of engine by air of exhaust throttle valve opening is the biggest,
And the temperature value of upstream of catalytic converter can be the least, the maximum for waste gas instruction energy can draw according to Practical Calculation, this
With electromotor is relevant.
Step S4: judge T6Whether more than TThreshold value。
Until the temperature value T of selective catalytic reducing agent upstream after being adjusted to Q maximum6More than preset temperature TThreshold value, then arrange
Gas choke valve recovers normal aperture.
Further, as the temperature value T of selective catalytic reducing agent upstream6It is not more than preset temperature TThreshold valueFurther comprise the steps of:
Step S31: judge that whether Δ T is more than threshold value Δ TThreshold value。
In Preset Time, the temperature value of selective catalytic reducing agent upstream is not more than preset temperature all the time, then calculate choosing
The rate of temperature change of selecting property catalytic reducer upstream, when this rate of temperature change is not more than preset temperature rate of change, then reduces row
Gas throttle valve opening is to minimum.And when this rate of temperature change is more than preset temperature rate of change, then continue to judge T6Whether it is more than
TThreshold value, until the temperature value T of selective catalytic reducing agent upstream6More than preset temperature TThreshold value, then exhaust shutter recovers the most normally opened
Degree.
By above-mentioned control method it can be seen that time exhaust shutter disclosed herein not only has a braking requirement
Control, also there is the application during row's warm management, by regulating the aperture of exhaust shutter, and change waste gas instruction energy
The change of amount Q, thus reach the control to row's warm management.
Additionally, the row's of optimizing warm manages the control function under cold car state, first rapid with maximum waste gas instruction energy
Add heat treatment, then make post-processing temperature reach target set point.Warm way to manage relative to present row can faster add
Heat treatment, improves post processing transformation efficiency, the risk that reduction urea crystals risk and discharge are transfinited.
As in figure 2 it is shown, the invention also discloses a kind of exhaust shutter for arranging temperature heat management system, including ECU
1, intake flow sensor the 2, first temperature sensor the 3, second temperature sensor 4 and exhaust shutter 5.
Wherein, ECU 1 is used for obtaining braking requirement and row's warm regulatory requirement；Intake flow sensor 2 is used for examining
Survey electromotor air inflow, intake flow sensor 2 is connected with ECU 1 signal, with ensure ECU 1 can obtain into
The information that mass-air-flow sensor 2 records；First temperature sensor 3 is arranged on the upstream of selective catalytic reducing agent and detects herein
Temperature value, the first temperature sensor 3 is connected with ECU 1 signal, to ensure that ECU 1 can obtain into the first temperature
The information that sensor 3 records；Second temperature sensor 4 is arranged on the upstream of catalytic converter, and the second temperature sensor 4 is with automatically controlled
Unit 1 signal connects, the information recorded into the second temperature sensor 4 to ensure ECU 1 to obtain；ECU 1 is adopted
Collect and close to control exhaust shutter 5 during braking requirement；When the row's of collecting warm regulatory requirement, regulation exhaust shutter 5 is opened
Degree, until the temperature that the first temperature sensor 3 detects is more than preset value, exhaust shutter 5 recovers initial opening.
Specifically, ECU 1 gathers electromotor or whether car load has braking requirement, if there being braking requirement, controls institute
State exhaust shutter 5 to close.By gathering electromotor or the braking requirement of entirety, exhaust shutter 5 is controlled.
In order to realize the detection to rate of temperature change, this ECU 1 is additionally operable to calculate the first temperature sensor 3 and detects
Rate of temperature change, and compare with preset temperature rate of change, when rate of temperature change is not more than preset temperature rate of change, then reduce
Exhaust shutter 5 aperture is to minimum.
The temperature value on first sensor 3 that ECU 1 gathers compares with preset value, the temperature on first sensor 3
Sending row's warm regulatory requirement during angle value no more than preset value, the temperature value that first sensor 3 the most now records is relatively low, needs
Carry out hyperthermic treatment.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one
The widest scope caused.
Claims (7)
1. an exhaust shutter is for arranging the control method of warm management, it is characterised in that include step:
1) gathering electromotor or whether car load has braking requirement, if there being braking requirement, closing exhaust shutter, if not braking
Demand then performs next step；
2) obtain the temperature value of selective catalytic reducing agent upstream, send row's temperature when the temperature value no more than preset temperature obtained
Thermal management requirements；
3) regulation exhaust throttle valve opening, makes waste gas instruction energy Q maximum, described waste gas instruction energy Q=(Mair+Mfuel)*T4,
Wherein, MairFor air input of engine by air；MfuelFor electromotor oil mass；T4Temperature value for upstream of catalytic converter；
4) until the temperature value of selective catalytic reducing agent upstream recovers normal aperture more than preset temperature, exhaust shutter.
Control method the most according to claim 1, it is characterised in that step 3) and step 4) between also include step 31):
In Preset Time, the temperature value of selective catalytic reducing agent upstream is not more than preset temperature all the time, then calculate selectivity
The rate of temperature change of catalytic reducer upstream, when this rate of temperature change is not more than preset temperature rate of change, then reduces aerofluxus joint
Stream valve opening is to minimum.
3. an exhaust shutter is used for arranging temperature heat management system, it is characterised in that including:
For obtaining braking requirement and the ECU of row's warm regulatory requirement；
For detecting the intake flow sensor of air input of engine by air, described intake flow sensor and described ECU signal
Connect；
It is arranged on the first temperature sensor of selective catalytic reducing agent upstream, described first temperature sensor and described automatically controlled list
Unit's signal connects；
It is arranged on the second temperature sensor of upstream of catalytic converter, described second temperature sensor and described ECU signal
Connect；
Exhaust shutter, described ECU controls described exhaust shutter and closes when collecting braking requirement；When the row of collecting
During warm regulatory requirement, regulate exhaust throttle valve opening, until the temperature that the first temperature sensor detects is more than preset value, institute
State exhaust shutter and recover initial opening.
Exhaust shutter the most according to claim 3 is used for arranging temperature heat management system, it is characterised in that described ECU
Gather electromotor or whether car load has braking requirement, if there being braking requirement, controlling described exhaust shutter and closing.
Exhaust shutter the most according to claim 3 is used for arranging temperature heat management system, it is characterised in that when ECU is sent out
After the row's of sending temperature treatment demand, regulate described exhaust throttle valve opening, make waste gas instruction energy Q maximum, until described first temperature
The temperature that degree sensor detects is more than preset value；
Described waste gas instruction energy Q=(Mair+Mfuel)*T4, wherein, Mair is air input of engine by air；MfuelFor electromotor oil mass；
T4The temperature detected for described second temperature sensor.
Exhaust shutter the most according to claim 5 is used for arranging temperature heat management system, it is characterised in that described ECU
It is additionally operable to calculate the rate of temperature change that the first temperature sensor detects, and compares with preset temperature rate of change, work as variations in temperature
When rate is not more than preset temperature rate of change, then reduce exhaust throttle valve opening to minimum.
Exhaust shutter the most according to claim 3 is used for arranging temperature heat management system, it is characterised in that described ECU
The temperature value on described first sensor gathered compares with preset value, when the temperature value on described first sensor is not more than pre-
If the row's of sending warm regulatory requirement during value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610770163.7A CN106150633B (en) | 2016-08-30 | 2016-08-30 | Exhaust shutter is used to arrange the control method and system of warm management |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610770163.7A CN106150633B (en) | 2016-08-30 | 2016-08-30 | Exhaust shutter is used to arrange the control method and system of warm management |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106150633A true CN106150633A (en) | 2016-11-23 |
| CN106150633B CN106150633B (en) | 2018-11-16 |
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ID=57344006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610770163.7A Active CN106150633B (en) | 2016-08-30 | 2016-08-30 | Exhaust shutter is used to arrange the control method and system of warm management |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109667680A (en) * | 2018-12-28 | 2019-04-23 | 潍柴动力股份有限公司 | A kind of row warms management method and device, system |
| CN112228189A (en) * | 2020-10-12 | 2021-01-15 | 潍柴动力股份有限公司 | Exhaust gas heat management coupling method and exhaust gas treatment system |
| CN112343691A (en) * | 2020-10-28 | 2021-02-09 | 潍柴动力股份有限公司 | Method and equipment for quitting thermal management control |
| CN113464253A (en) * | 2020-03-31 | 2021-10-01 | 北京福田康明斯发动机有限公司 | Device and method for DPF regeneration control of extended-range diesel engine |
| CN114312741A (en) * | 2022-01-12 | 2022-04-12 | 东风商用车有限公司 | Method and system for performing engine thermal management based on P0 shallow mixing architecture |
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| CN113464253A (en) * | 2020-03-31 | 2021-10-01 | 北京福田康明斯发动机有限公司 | Device and method for DPF regeneration control of extended-range diesel engine |
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| CN112228189B (en) * | 2020-10-12 | 2021-12-21 | 潍柴动力股份有限公司 | Exhaust gas heat management coupling method and exhaust gas treatment system |
| CN112343691A (en) * | 2020-10-28 | 2021-02-09 | 潍柴动力股份有限公司 | Method and equipment for quitting thermal management control |
| CN112343691B (en) * | 2020-10-28 | 2021-10-08 | 潍柴动力股份有限公司 | Method and equipment for quitting thermal management control |
| CN114312741A (en) * | 2022-01-12 | 2022-04-12 | 东风商用车有限公司 | Method and system for performing engine thermal management based on P0 shallow mixing architecture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106150633B (en) | 2018-11-16 |
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