CN108590818A - A kind of control method reducing cold start emission based on hybrid vehicle - Google Patents

A kind of control method reducing cold start emission based on hybrid vehicle Download PDF

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Publication number
CN108590818A
CN108590818A CN201810348964.3A CN201810348964A CN108590818A CN 108590818 A CN108590818 A CN 108590818A CN 201810348964 A CN201810348964 A CN 201810348964A CN 108590818 A CN108590818 A CN 108590818A
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CN
China
Prior art keywords
temperature
hybrid vehicle
catalyzing unit
engine
ternary catalyzing
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Pending
Application number
CN201810348964.3A
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Chinese (zh)
Inventor
刘小飞
盛旺
王冬
陈军
陈一军
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Chengdu Yajun New Energy Automobile Technology Co Ltd
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Chengdu Yajun New Energy Automobile Technology Co Ltd
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Priority to CN201810348964.3A priority Critical patent/CN108590818A/en
Publication of CN108590818A publication Critical patent/CN108590818A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2006Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating
    • F01N3/2013Periodically heating or cooling catalytic reactors, e.g. at cold starting or overheating using electric or magnetic heating means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066Selective catalytic reduction [SCR]
    • F01N3/208Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2570/00Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/12Hydrocarbons
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2570/00Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/14Nitrogen oxides
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2590/00Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/11Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for hybrid vehicles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2900/00Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06Parameters used for exhaust control or diagnosing
    • F01N2900/10Parameters used for exhaust control or diagnosing said parameters being related to the vehicle or its components
    • F01N2900/104Battery status
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2900/00Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06Parameters used for exhaust control or diagnosing
    • F01N2900/16Parameters used for exhaust control or diagnosing said parameters being related to the exhaust apparatus, e.g. particulate filter or catalyst
    • F01N2900/1602Temperature of exhaust gas apparatus
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Abstract

The control method of cold start emission is reduced the invention discloses a kind of electric heating type ternary catalystic device structure and based on hybrid vehicle, entire car controller detects whether ECU controls engine start by CAN bus, if after detecting engine start, entire car controller reads current ternary catalyzing unit temperature T and battery SOC, is compared with the initiation temperature T1 of setting;If more than initiation temperature T1, then engine is judged for thermal starting state, ternary catalyzing unit does not need electrical heating, closes electrical heating;If being less than T1, engine is cold start, at this point, judging battery SOC state based on CAN bus communication, and disclose further processing method.The present invention using on mixed power electric car high capacity cell and high voltage installation provide external heat source for ternary catalyzing unit, under the premise of meeting dynamic property, for the purpose of the vehicle discharge for reducing cold-start phase, to further play the performance advantage of hybrid vehicle low stain.

Description

A kind of control method reducing cold start emission based on hybrid vehicle
Technical field
The invention belongs to hybrid vehicle emission performance Optimized-control Technique fields, and in particular to one kind is in vehicle cold-start Or during the operating mode frequent start-stop of city, for the purpose of the discharge of the cold-start phase before reducing three-way catalytic converter ignition, The control method that three-way catalytic converter is electrically heated using the high capacity cell on mixed power electric car.
Background technology
Increasingly stringent with emission regulation, the emission problem of engine cold starting process seems more and more prominent.Research Show that cold-start period accounts for entirely testing to the discharge contribution amount of spark-ignition engine vehicle behavior method discharging limit value HC and CO 50%-the 80% of process discharge amount.Meanwhile hybrid vehicle closes engine under idling and pure electric vehicle operating mode, to reach The purpose for reducing oil consumption, reducing discharge.Although being mounted with exhaust gas cleaner in modern automobile exhaust system --- ternary is urged Change converter, the pernicious gases such as carbon monoxide, hydrocarbon and oxynitrides in vehicle exhaust can be passed through oxidation by it It is changed into harmless carbon dioxide, water and nitrogen with reduction.But it is frequently risen in engine cold-start or city state of cyclic operation During stopping, since three-way catalytic converter temperature declines, catalytic conversion efficiency is caused to reduce, deterioration of emission.Studies have shown that urging The transfer efficiency of agent has positive connection with temperature, and the characteristic just started to work when catalyst converter only reaches certain temperature rises Temperature characterisitic is fired, the temperature when transfer efficiency reaches 50% is exactly initiation temperature.Ternary catalyzing unit energy at 400~600 DEG C Reach optimum Working, i.e., it can make CO, HC, NOx of engine emission while reduce by 90% or more;Temperature is less than 300 DEG C when, catalytic effect drastically reduces;When more than 650 DEG C, ternary catalyzing unit can lose because noble metal is with aluminum oxide coating layer cause thermal damage Effect.
For accelerate catalyst converter ignition, improve the temperature of catalyst, engine start often take increase circulating fuel injection quantity, Reduce the measures such as ignition advance angle to improve delivery temperature, but this can also increase HC, CO discharge capacity.On the other hand, hybrid power Automobile uses 2 power sources of internal combustion engine and motor, and more control freedom degrees are provided to accelerate catalyst converter ignition.Therefore, The emission performance of research hybrid vehicle cold-start phase is of great significance.
Orthodox car has by the method for heating ternary catalyzing unit to reduce cold-start phase discharge:In engine start It often takes and increases circulating fuel injection quantity, reduces the measures such as ignition advance angle to improve delivery temperature, but this can also increase HC, CO discharge Amount;It is heated using 12/24V accumulator low-voltages, but power consumption is excessive, easily causes accumulator feeding;By optimizing three-element catalytic Device structure and installation site allow three-way catalytic converter close proximity to exhaust manifold outlet, to improve delivery temperature, but it is this Mode makes the serious heat-shock of three-way catalytic converter influence, and easily causes catalyst aging.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of using big on mixed power electric car Capacity batteries and high voltage installation provide external heat source for ternary catalyzing unit, under the premise of meeting dynamic property, to accelerate ternary Catalytic converter ignition reduces the dress of the hybrid vehicle reduction cold start emission for the purpose of the vehicle discharge of cold-start phase It sets and method.
The purpose of the present invention is achieved through the following technical solutions:One kind reducing cold start-up based on hybrid vehicle The control method of discharge, including ternary catalyzing unit computer heating control mode:
First, entire car controller detects whether ECU controls engine start by CAN bus, if detecting, engine opens After dynamic, entire car controller reads current catalytic converter temperature T and battery SOC, in this, as judging electric heating type three-element catalytic Whether converter reaches the foundation of initiation temperature, i.e., is compared with the initiation temperature T1 of setting;
If more than initiation temperature T1, then engine is judged for thermal starting state, catalytic converter does not need electrical heating, closes Electrical heating;
If being less than T1, engine is cold start, at this point, judging battery SOC state based on CAN bus communication, If SOC is more than 30%, shows that battery capacity is higher, then connect electrical heating heat source, is heated to catalyst converter by battery pack;If small In 30%, then shows that SOC value of battery is relatively low, be then switched to driving charge mode.
It is preferred that by detect catalyst converter Current Temperatures T and catalyst converter optimum working temperature upper limit threshold T2 into Row compares, if being less than T2, control logic jumps to cold-start phase;Conversely, showing that catalyst temperature is in best model at this time In enclosing, electric heating function need to be closed.
It is preferred that temperature T2 demarcates to obtain by experimental stand.
It is preferred that temperature T1 demarcates to obtain by experimental stand.
The electric heating type ternary catalystic device structure equipped on hybrid vehicle, it includes that engine and its electronic control are single First (Electronic Control Unit, ECU), exhaust manifold, three-way catalytic converter, electrical-heating source, temperature sensor T With vehicle battery pack and battery management system (Battery Management System, BMS).
It is preferred that when entire car controller is in by CAN bus infomation detection to engine and is started, according to temperature The battery charge state (State Of Charge, SOC) of information and battery pack BMS that sensor T is acquired is spent to connect three First catalytic converter heated current, so that the electric heat source inside catalyst converter generates heat to improve catalyst temperature.
It is preferred that after catalyst converter ignition, when ensureing that temperature is in a certain range in catalyst converter, heating electricity is disconnected Stream prevents catalyst temperature from rising too high to reduce energy consumption, avoids catalyst converter sintering and aging.
The beneficial effects of the invention are as follows:Using on mixed power electric car high capacity cell and high voltage installation be three First catalyst converter provides external heat source, under the premise of meeting dynamic property, to accelerate three-way catalytic converter ignition, reduces cold start-up For the purpose of the vehicle discharge in stage, to further play the performance advantage of hybrid vehicle low stain.
Description of the drawings
Fig. 1 is electric heating type ternary catalystic device structure schematic diagram;
Fig. 2 is ternary catalyzing unit computer heating control flow;
In figure, 1- engines, 2-ECU, 3-BMS, 4- battery packs, 5- catalyst converter honeycomb coatings, 6- ternary catalyzing units, 7- walls Body, 8- temperature sensors, 9- entire car controllers, 10- electrical-heating sources, 11- exhaust manifolds, 12-CAN signal wires.
Specific implementation mode
Technical scheme of the present invention is described in further detail below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to It is as described below.
As shown in Fig. 2, a kind of control method reducing cold start emission based on hybrid vehicle, including ternary catalyzing unit 6 computer heating control modes:
First, entire car controller 9 detects whether ECU2 controls the startup of engine 1 by CAN bus, if detecting engine After 1 starts, entire car controller 9 reads current catalytic converter temperature T and battery SOC, in this, as judging electric heating type ternary Whether catalytic converter reaches the foundation of initiation temperature, i.e., is compared with the initiation temperature T1 of setting;
If more than initiation temperature T1, then judge that engine 1 is thermal starting state, catalytic converter does not need electrical heating, closes Close electrical heating;
If being less than T1, engine 1 is cold start, at this point, being communicated based on CAN bus (or CAN signal line 12) Judge battery SOC state, if SOC is more than 30%, shows that battery capacity is higher, then connect electrical heating heat source, by battery pack 4 It is heated to catalyst converter;If being less than 30%, shows that SOC value of battery is relatively low, be then switched to driving charge mode.
In a preferred embodiment, by detecting catalyst converter Current Temperatures T and catalyst converter optimum working temperature upper limit threshold Value T2 is compared, if being less than T2, control logic jumps to cold-start phase;Conversely, showing that catalyst temperature is at this time In optimum range, electric heating function need to be closed.
In a preferred embodiment, temperature T2 demarcates to obtain by experimental stand.
In a preferred embodiment, temperature T1 demarcates to obtain by experimental stand.
As shown in Figure 1,6 structure of electric heating type ternary catalyzing unit equipped on hybrid vehicle, it include engine 1 and Its electronic control unit (Electronic Control Unit, ECU2), exhaust manifold 11, ternary catalyzing unit 6 are (such as Fig. 1 institutes Show, it can be seen that the wall body 7 and catalyst converter honeycomb coating 5 of ternary catalyzing unit 6), electrical-heating source 10, temperature sensor 8T and vehicle Battery pack 4 and battery management system (Battery Management System, BMS3).
In a preferred embodiment, start when entire car controller 9 is in by CAN bus infomation detection to engine 1 When, according to temperature sensor 8T acquisition information and battery pack 4BMS3 battery charge state (State Of Charge, SOC) three-way catalytic converter heated current is connected, so that the electric heat source inside catalyst converter generates heat to improve catalysis Device temperature.
In a preferred embodiment, it after catalyst converter ignition, when ensureing that temperature is in a certain range in catalyst converter, disconnects Heated current prevents catalyst temperature from rising too high to reduce energy consumption, avoids catalyst converter sintering and aging.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, it is noted that all All any modification, equivalent and improvement made by within the spirit and principles in the present invention etc. should be included in the guarantor of the present invention Within the scope of shield.

Claims (7)

1. a kind of control method reducing cold start emission based on hybrid vehicle, which is characterized in that including ternary catalyzing unit Computer heating control mode:
Entire car controller detects whether ECU controls engine start by CAN bus, if after detecting engine start, vehicle Controller reads current ternary catalyzing unit temperature T and battery SOC, is compared with the initiation temperature T1 of setting;
If more than initiation temperature T1, then engine is judged for thermal starting state, ternary catalyzing unit does not need electrical heating, closes electricity and adds Heat;
If being less than T1, engine is cold start, at this point, judging battery SOC state based on CAN bus communication, if SOC More than 30%, then show that battery capacity is higher, then connect electrical heating heat source, is heated to ternary catalyzing unit by battery pack;If small In 30%, then shows that SOC value of battery is relatively low, be then switched to driving charge mode.
2. a kind of control method reducing cold start emission based on hybrid vehicle according to claim 1, feature It is:It is compared by detecting ternary catalyzing unit Current Temperatures T and ternary catalyzing unit optimum working temperature upper limit threshold T2, if Less than T2, then control logic jumps to cold-start phase;Conversely, showing that catalyst temperature is in optimum range at this time, needs to close Close electric heating function.
3. a kind of control method reducing cold start emission based on hybrid vehicle according to claim 2, feature It is:Temperature T2 demarcates to obtain by experimental stand.
4. a kind of control method reducing cold start emission based on hybrid vehicle according to claim 1, feature It is:Temperature T1 demarcates to obtain by experimental stand.
5. the electric heating type ternary catalystic device structure equipped on hybrid vehicle, it is characterised in that:It include engine and its Electronic control unit, exhaust manifold, ternary catalyzing unit, electrical-heating source, temperature sensor T and vehicle battery pack and battery management system System.
6. the electric heating type ternary catalystic device structure equipped on hybrid vehicle according to claim 5, feature exist In:When entire car controller is in by CAN bus infomation detection to engine to be started, the letter according to temperature sensor T acquisitions The battery charge state of breath and battery pack BMS connect ternary catalyzing unit heated current, so that the electricity inside catalyst converter Heat source generates heat to improve catalyst temperature.
7. the electric heating type ternary catalystic device structure equipped on hybrid vehicle according to claim 5 or 6, feature It is:After catalyst converter ignition, when ensureing that temperature is in a certain range in ternary catalyzing unit, heated current is disconnected to reduce energy Consumption, while preventing catalyst temperature from rising too high, avoid catalyst converter sintering and aging.
CN201810348964.3A 2018-04-18 2018-04-18 A kind of control method reducing cold start emission based on hybrid vehicle Pending CN108590818A (en)

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CN109611182A (en) * 2019-02-22 2019-04-12 奇瑞汽车股份有限公司 A kind of control method of engine electro-heated catalyst
CN110758375A (en) * 2019-10-31 2020-02-07 安徽江淮汽车集团股份有限公司 Vehicle control method, hybrid vehicle, and readable storage medium
CN110794249A (en) * 2019-11-21 2020-02-14 中国汽车技术研究中心有限公司 Low-temperature cold start testing device and method for fuel cell passenger car
CN111196266A (en) * 2020-01-20 2020-05-26 浙江锋锐发动机有限公司 Torque distribution method, system and device for catalyst ignition stage
CN111828189A (en) * 2020-06-11 2020-10-27 义乌吉利自动变速器有限公司 Control method, device and equipment for starting engine
CN111980813A (en) * 2019-05-21 2020-11-24 上海汽车集团股份有限公司 Method and system for reducing engine emissions in a hybrid vehicle
FR3104638A1 (en) * 2019-12-13 2021-06-18 Psa Automobiles Sa PROCESS FOR MANAGING THE PRIMING OF A HYBRID VEHICLE CATALYST
CN113074054A (en) * 2021-04-06 2021-07-06 浙江吉利控股集团有限公司 Heating control method, heating control device, electronic apparatus, and storage medium
CN113382903A (en) * 2019-01-31 2021-09-10 奥迪股份公司 Method for operating a vehicle
CN113879278A (en) * 2021-10-30 2022-01-04 重庆长安汽车股份有限公司 Hybrid vehicle emission control method, system and computer readable storage medium
CN113942369A (en) * 2020-07-17 2022-01-18 奥迪股份公司 Hybrid vehicle
CN114776416A (en) * 2022-04-01 2022-07-22 浙江吉利控股集团有限公司 Internal combustion engine emission control system, control method, and vehicle
CN115263570A (en) * 2021-04-29 2022-11-01 沃尔沃汽车公司 Method for reducing cold start emissions in a hybrid electric vehicle

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CN113382903A (en) * 2019-01-31 2021-09-10 奥迪股份公司 Method for operating a vehicle
CN113382903B (en) * 2019-01-31 2024-03-19 奥迪股份公司 Method for operating a vehicle
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CN111196266A (en) * 2020-01-20 2020-05-26 浙江锋锐发动机有限公司 Torque distribution method, system and device for catalyst ignition stage
CN111196266B (en) * 2020-01-20 2021-06-01 浙江锋锐发动机有限公司 Torque distribution method, system and device for catalyst ignition stage
CN111828189A (en) * 2020-06-11 2020-10-27 义乌吉利自动变速器有限公司 Control method, device and equipment for starting engine
CN113942369A (en) * 2020-07-17 2022-01-18 奥迪股份公司 Hybrid vehicle
CN113074054A (en) * 2021-04-06 2021-07-06 浙江吉利控股集团有限公司 Heating control method, heating control device, electronic apparatus, and storage medium
CN115263570A (en) * 2021-04-29 2022-11-01 沃尔沃汽车公司 Method for reducing cold start emissions in a hybrid electric vehicle
CN115263570B (en) * 2021-04-29 2024-02-06 沃尔沃汽车公司 Method for reducing cold start emissions in a hybrid electric vehicle
CN113879278A (en) * 2021-10-30 2022-01-04 重庆长安汽车股份有限公司 Hybrid vehicle emission control method, system and computer readable storage medium
CN113879278B (en) * 2021-10-30 2023-09-05 重庆长安汽车股份有限公司 Emission control method and system for hybrid vehicle and computer readable storage medium
CN114776416A (en) * 2022-04-01 2022-07-22 浙江吉利控股集团有限公司 Internal combustion engine emission control system, control method, and vehicle
CN114776416B (en) * 2022-04-01 2023-12-05 浙江吉利控股集团有限公司 Internal combustion engine emission control system, control method, and vehicle

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