CN213116484U - Cold-starting emission control system of range extender - Google Patents
Cold-starting emission control system of range extender Download PDFInfo
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- CN213116484U CN213116484U CN202022203388.9U CN202022203388U CN213116484U CN 213116484 U CN213116484 U CN 213116484U CN 202022203388 U CN202022203388 U CN 202022203388U CN 213116484 U CN213116484 U CN 213116484U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model relates to a driving system field, concretely relates to increase journey ware cold start emission control system. The cold-starting emission control system of the range extender comprises an electric quantity display module, a temperature sensor, a temperature judgment module, a range extender preheating module and a range extender power generation module; the temperature sensor is connected with the temperature judging module in a two-way mode, the electric quantity display module is connected with the range extender preheating module and the range extender power generation module respectively after passing through the temperature judging module, and the range extender preheating module and the range extender power generation module are connected with the range extender. The cold-start emission control system of the range extender effectively controls the emission of tail gas of the electric automobile of the range extender in a time period from the cold start of the range extender to the normal working temperature state of the range extender by realizing the low-temperature idling start of the range extender, so that the emission of pollutants such as CH, CO and the like does not exceed the standard when the range extender is in cold start, and the energy conservation and emission reduction are realized.
Description
Technical Field
The utility model relates to a driving system field, concretely relates to increase journey ware cold start emission control system.
Background
The engine of the traditional fuel vehicle directly participates in driving, the engine can work under the universal characteristic along with the change of working conditions, and the exhaust temperature and the exhaust emission of the catalytic converter are easy to control; the range-extending type electric vehicle is a new technology in the market, a range extender does not directly participate in driving, the working time of an engine is short, the power required when the range extender intervenes for working is available, if the range extender engine is not preheated and directly enters a working state, the exhaust temperature of a catalytic converter does not reach the design requirement, and the exhaust emission exceeds the limit.
Disclosure of Invention
The utility model aims to overcome the increase journey ware that exists among the prior art when starting, the engine does not preheat for catalyst converter exhaust temperature does not reach the designing requirement, leads to exhaust emissions to surpass the problem of restriction, provides an increase journey ware cold start emission control system that exhaust emissions is up to standard when increasing journey ware cold start.
In order to realize the purpose of the utility model, the utility model provides a following technical scheme:
a cold start emission control system of a range extender comprises an electric quantity display module, a temperature sensor, a temperature judgment module, a range extender preheating module and a range extender power generation module; the temperature sensor is connected with the temperature judging module in a two-way mode, the electric quantity display module is connected with the range extender preheating module and the range extender power generation module respectively after passing through the temperature judging module, and the range extender preheating module and the range extender power generation module are connected with the range extender.
Preferably, the electric quantity display module is used for starting the range extender; the temperature sensor is used for detecting the temperature of the range extender engine; the temperature judging module is used for judging whether the temperature of the engine reaches a preset condition, starting the range extender preheating module if the temperature of the engine does not reach the preset condition, and starting the range extender generating module if the temperature of the engine reaches the preset condition; the range extender preheating module is used for controlling the range extender to preheat and limiting the range extender to output electric energy; the range extender power generation module is used for controlling the range extender to output electric energy.
Preferably, the range extender cold start emission control system further comprises a starting judgment module; the starting judgment module is positioned between the electric quantity display module and the temperature judgment module.
Preferably, the power display module is a power management system BMS.
Preferably, the starting judgment module, the temperature judgment module, the range extender preheating module and the range extender power generation module are a vehicle control unit VCU.
Compared with the prior art, the beneficial effects of the utility model are that: by monitoring the water temperature of the engine of the range extender, the range extender works in an idle state when the air temperature is low, the exhaust emission of the electric automobile with the range extender in a time period from the cold start of the range extender to the time when the range extender reaches the normal working temperature state is effectively controlled, the emission of pollutants such as CH, CO and the like does not exceed the standard when the range extender is cold started, and the energy conservation and emission reduction are realized.
Description of the drawings:
fig. 1 is a system block diagram of a range extender cold start emission control system according to an exemplary embodiment 1 of the present invention;
fig. 2 is a system block diagram of a range extender cold start emission control system according to an exemplary embodiment 2 of the present invention;
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. However, it should not be understood that the scope of the above-mentioned subject matter is limited to the following embodiments, and all the technologies realized based on the present invention are within the scope of the present invention.
Example 1
As shown in fig. 1, the present embodiment provides a cold start emission control system for a range extender, which includes an electric quantity display module, a temperature sensor, a temperature determination module, a range extender preheating module, and a range extender power generation module; the temperature sensor is bidirectionally connected with the temperature judging module, the electric quantity display module is respectively connected with the range extender preheating module and the range extender power generation module after passing through the temperature judging module, and the range extender preheating module and the range extender power generation module are both connected with the range extender; the electric quantity display module is used for starting the range extender; the temperature sensor is used for detecting the temperature of the range extender engine; the temperature judging module is used for judging whether the temperature of the engine reaches a preset condition, starting the range extender preheating module if the temperature of the engine does not reach the preset condition, and starting the range extender generating module if the temperature of the engine reaches the preset condition; the range extender preheating module is used for controlling the range extender to preheat and limiting the range extender to output electric energy; the range extender power generation module is used for controlling the range extender to output electric energy.
The embodiment judges whether the temperature reaches a preset condition through a temperature judging module; when the temperature is low and the preset condition is not met, the range extender preheating module controls the range extender to preheat, so that the range extender is in an idling state, namely the range extender does not enter a power generation working state, and the range extender is limited to output electric energy to the outside; the range extender preheating module controls the range extender to be in an idle state, and compared with the method of directly starting the range extender at a high speed when the temperature is low, the method effectively controls the exhaust emission in the period from the cold start of the range extender to the time when the range extender reaches the normal working temperature state, realizes energy conservation and emission reduction, and preheats the range extender at the same time, so that the exhaust temperature of the catalyst can quickly reach the design requirement, and the automobile can be started as soon as possible; when the temperature reaches a preset condition, the range extender power generation module controls the range extender to normally operate and supply power to the outside; at this time, the catalyst exhaust temperature can reach the design requirement due to the warm-up operation in the idle state of the front range extender. The cold-start emission control system of the range extender of the embodiment effectively controls the emission of tail gas of the electric automobile of the range extender in the time period from the cold start of the range extender to the normal working temperature of the range extender by realizing the low-temperature idling start of the range extender, so that the emission of pollutants such as CH, CO and the like does not exceed the standard when the range extender is in the cold start, and the energy conservation and emission reduction are realized.
The electric quantity display module is a power management system BMS adopted when the existing range extender is started; the temperature judging module, the range extender preheating module and the range extender power generation module can be designed into adaptive hardware matched with the overall design; for example, the temperature judgment module may be a comparator, the signal detected by the temperature sensor is compared with a reference signal of the comparator, and an output result of the comparator may reflect whether the engine temperature reaches a preset condition; the range extender preheating module can be low-voltage power supply equipment, the power supply is low at the moment, the engine is in a low-speed state, the range extender can be in an idle state, the energy consumption is reduced, the pollutant emission is reduced, and meanwhile, the range extender is preheated; the range extender power generation module can be a high-voltage power supply device, the power supply is sufficient at the moment, and the range extender can normally run to supply power to the outside; at the moment, due to the preheating operation of the front range extender in the idling state, the exhaust temperature of the catalyst can meet the design requirement, and compared with the condition that the temperature is low, the range extender is directly started to supply power to the outside, the emission of tail gas pollutants can be reduced.
Example 2
As shown in fig. 2, the present embodiment provides a range extender cold start emissions control system. Compared with the embodiment 1, the electric quantity display module, the temperature judgment module, the range extender preheating module and the range extender power generation module in the embodiment can be the existing control system of the automobile, such as a power management system BMS and a vehicle control unit VCU; by means of the existing functional modules of the automobile control system, the corresponding functions are realized by realizing the connection between the modules, and the cost is reduced.
The cold-starting emission control system of the range extender further comprises a starting judgment module; the starting judgment module is positioned between the electric quantity display module and the temperature judgment module. The starting judgment module judges whether the range extender needs to be started or not according to the battery electric quantity, the power required by the whole vehicle and the like; whether the range extender is started or not is judged according to the power management system BMS and the VCU of the vehicle control unit, and the starting mode of the existing range extender is not repeated herein.
The electric quantity display module is a power management system BMS; the starting judgment module, the temperature judgment module, the range extender preheating module and the range extender power generation module are a VCU (vehicle control unit).
When a vehicle runs, a BMS (battery management system) detects the percentage SOC of the remaining electric quantity of a battery, a VCU (start judging module) of a vehicle controller judges whether the start condition of a range extender is met or not according to the percentage SOC of the remaining electric quantity, the VCU of the vehicle controller requests power generation, if the temperature of an engine received by the VCU of the vehicle controller does not meet the preset condition (namely the temperature judging module judges that the value of a temperature sensor does not meet the preset condition), the range extender is cold started, the range extender only keeps idling operation through a range extender preheating module and does not generate power along with the power required by the VCU of the vehicle controller, namely the range extender limits power generation; when the water temperature of the engine reaches a set requirement (the VCU of the vehicle controller is monitored by the temperature judgment module), the power generation limitation of the range extender is cancelled, the range extender power generation module controls the range extender to generate power along with the power request of the VCU of the vehicle controller, and the range extender can normally output electric energy. According to the embodiment, the vehicle control unit VCU monitors the temperature of the engine water to judge whether the temperature of the exhaust gas of the catalytic converter meets the design requirement, when the temperature is low, the range extender works in an idling state, the exhaust emission of the electric automobile of the range extender in the time period from the cold start of the range extender to the time when the range extender reaches the normal working temperature state is effectively controlled, the emission of pollutants such as CH and CO is not over standard when the range extender is in the cold start, and the energy conservation and emission reduction are realized.
The above description is only for the purpose of illustrating the embodiments of the present invention, and not for the purpose of limiting the same. Various substitutions, modifications and improvements may be made by those skilled in the relevant art without departing from the spirit and scope of the invention.
Claims (5)
1. A cold start emission control system of a range extender is characterized by comprising an electric quantity display module, a temperature sensor, a temperature judgment module, a range extender preheating module and a range extender power generation module; the temperature sensor is connected with the temperature judging module in a two-way mode, the electric quantity display module is connected with the range extender preheating module and the range extender power generation module respectively after passing through the temperature judging module, and the range extender preheating module and the range extender power generation module are connected with the range extender.
2. The range extender cold start emission control system of claim 1, wherein the charge level display module is configured to activate the range extender; the temperature sensor is used for detecting the temperature of the range extender engine; the temperature judging module is used for judging whether the temperature of the engine reaches a preset condition, starting the range extender preheating module if the temperature of the engine does not reach the preset condition, and starting the range extender generating module if the temperature of the engine reaches the preset condition; the range extender preheating module is used for controlling the range extender to preheat and limiting the range extender to output electric energy; the range extender power generation module is used for controlling the range extender to output electric energy.
3. The range extender cold start emission control system of claim 2, further comprising a start-up determination module; the starting judgment module is positioned between the electric quantity display module and the temperature judgment module.
4. The range extender cold start emission control system of claim 3, wherein the charge level display module is a power management system (BMS).
5. The range extender cold start emission control system of claim 4, wherein the start determination module, the temperature determination module, the range extender warm-up module, and the range extender power generation module are Vehicle Control Units (VCUs).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022203388.9U CN213116484U (en) | 2020-09-30 | 2020-09-30 | Cold-starting emission control system of range extender |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022203388.9U CN213116484U (en) | 2020-09-30 | 2020-09-30 | Cold-starting emission control system of range extender |
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| Publication Number | Publication Date |
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| CN213116484U true CN213116484U (en) | 2021-05-04 |
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| CN202022203388.9U Active CN213116484U (en) | 2020-09-30 | 2020-09-30 | Cold-starting emission control system of range extender |
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- 2020-09-30 CN CN202022203388.9U patent/CN213116484U/en active Active
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