A Method and Device for Measuring the Carbon Emission Reduction of New Energy Vehicles

Abstract

The present invention discloses a method and device for measuring the carbon emission reduction of new energy vehicles, including the steps of: obtaining the data information and driving state information of new energy vehicles; calculating the instantaneous power of new energy vehicles in different driving states, and calculating the baseline emissions BE according to the instantaneous power of new energy vehicles in different states; calculating the project emissions PE according to the power consumption of new energy vehicles and the CO2 emission factor per unit of power consumption; calculating the emission reduction ER of new energy vehicles, and the calculation formula is: ER = BE - PE. Based on the "Methodology for Achieving Emission Reduction through Electric and Hybrid Vehicles (CMS-048-V01)" approved by the Ministry of Ecology and Environment in the "List of Registered National Greenhouse Gas Voluntary Emission Reduction Methodologies", the present invention has developed an algorithm model for calculating the carbon emission reduction of new energy vehicles. The idea of this methodology is to collect the driving states of new energy vehicles, calculate the reduced fuel consumption under the same driving scenarios, and through this method, the emission reduction of new energy vehicles compared with fuel vehicles under the same driving conditions can be accurately calculated.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon emission reduction calculation, and particularly to a method and device for measuring the carbon emission reduction of new energy vehicles. Background Art

[0002] China has vigorously promoted new energy vehicles. As of the end of 2023, the number of new energy vehicles in China reached 20.41 million. Compared with traditional gasoline vehicles, the emission reduction of new energy vehicles is about 40%. However, due to the lack of a measurement plan, such a huge emission reduction has not been included in the national carbon emission reduction statistics for a long time.

[0003] The "Administrative Measures for Voluntary Greenhouse Gas Emission Reduction Trading" announced by the Ministry of Ecology and Environment on October 19, 2023, has been officially implemented. Article 4 clearly states that "natural persons can participate in voluntary greenhouse gas emission reduction trading in accordance with these measures." Currently, the carbon emission trading markets in 8 provinces and cities have opened individual trading for citizens. Citizens can achieve carbon emission reduction by driving new energy vehicles to participate in the CCER (China Carbon Emission Trading Platform) of the citizens' voluntary emission reduction project.

[0004] On October 24, 2023, the Ministry of Ecology and Environment formulated the "Methodology for Voluntary Greenhouse Gas Emission Reduction Projects - Afforestation Carbon Sink (CCER-14-001-V01)", "Methodology for Voluntary Greenhouse Gas Emission Reduction Projects - Grid-connected Solar Thermal Power Generation (CCER-01-001-V01)", "Methodology for Voluntary Greenhouse Gas Emission Reduction Projects - Grid-connected Offshore Wind Power Generation (CCER-01-002-V01)", and "Methodology for Voluntary Greenhouse Gas Emission Reduction Projects - Mangrove Afforestation (CCER-14-002-V01)" according to the "Interim Administrative Measures for Voluntary Greenhouse Gas Emission Reduction Trading". The above emission reduction project methodologies all consider the calculation of carbon emission reduction from the supply side, while the carbon emission reduction of new energy vehicles is considered from the consumption side. Currently, there is no measurement method and measurement device for the carbon emission reduction of new energy vehicles during driving in China.

[0005] In summary, how to design a measurement method for the carbon emission reduction of new energy vehicles during driving is an urgent problem to be solved by those skilled in the art at present. Summary of the Invention

[0006] The main purpose of the embodiments of the present invention is to propose a method and device for measuring the carbon emission reduction of new energy vehicles, aiming to design a measurement method for the carbon emission reduction of new energy vehicles during driving.

[0007] The technical solution for the present invention to solve the above technical problems is to provide a method for measuring the carbon emission reduction of new energy vehicles, including the following steps:

[0008] Obtain the data information and driving status information of the new energy vehicle;

[0009] Calculate the instantaneous power of a new energy vehicle in different driving states, and calculate the baseline emissions BE according to the instantaneous power of the new energy vehicle in different states;

[0010] Calculate the project emissions PE according to the power consumption of the new energy vehicle and the CO2 emission factor per unit power consumption;

[0011] Calculate the emission reduction amount ER of the new energy vehicle. The calculation formula is:

[0012] ER = BE - PE.

[0013] Furthermore, in the step of calculating the instantaneous power of the new energy vehicle in different states and calculating the baseline emissions BE according to the instantaneous power of the new energy vehicle in different states,

[0014] The instantaneous power of the different driving states includes the instantaneous power of the vehicle moving at a constant speed, the instantaneous power of the vehicle idling, the instantaneous power of the vehicle accelerating, and the instantaneous power of the vehicle decelerating;

[0015] The calculation formula for the instantaneous power P is:

[0016] P = UI / η e

[0017] U is the voltage, I is the current, and η e is the effective thermal efficiency.

[0018] Furthermore, in the step of calculating the instantaneous power of the new energy vehicle in different states and calculating the baseline emissions BE according to the instantaneous power of the new energy vehicle in different states, the calculation formula for the baseline emissions BE is:

[0019]

[0020] Among them, E is the fossil fuel consumption emission factor of the baseline vehicle (gCO2 / J), P1 is the instantaneous power of the vehicle moving at a constant speed, P2 is the instantaneous power of the vehicle idling, P3 is the instantaneous power of the vehicle accelerating, P r is the instantaneous power of the vehicle decelerating, obtained through the driving state acquisition module, h1 is the duration of the vehicle moving at a constant speed, h2 is the duration of the vehicle idling, h3 is the duration of the vehicle accelerating, h4 is the duration of the vehicle decelerating, η v is the engine thermal efficiency, η b is the conversion rate of the kinetic energy recovery power charged into the battery, NCV i is the net calorific value of the i-type fossil fuel of the baseline vehicle.

[0021] Further, in the step of calculating the project emission PE according to the power consumption of the new energy vehicle and the CO2 emission factor per unit power consumption, the calculation formula of the project emission PE is as follows:

[0022] PE = W d × EF

[0023] where W d is the power consumption of the vehicle in kWh, and EF is the CO2 emission factor per unit power consumption.

[0024] To solve the above technical problems, the present invention also proposes a new energy vehicle carbon emission reduction measurement device, including:

[0025] An energy consumption acquisition module, which is used to connect to the outlet of the new energy vehicle battery pack to obtain the physical quantities of battery charging and discharging; and to obtain the battery charging and discharging status by connecting to the vehicle computer.

[0026] A driving state acquisition module, which is used to connect to the vehicle electronic control system of the new energy vehicle to collect the driving state of the new energy vehicle; or to collect the vehicle acceleration through a high-precision multi-axis gyroscope and calculate the driving state of the new energy vehicle.

[0027] A measurement and calculation module, which is used to combine the physical quantities collected by the energy consumption acquisition module and the driving state acquisition module, and calculate the carbon emission reduction in combination with the new energy vehicle emission reduction algorithm.

[0028] Based on the "Methodology for Achieving Emission Reduction through Electric and Hybrid Vehicles (CMS-048-V01)" approved by the Ministry of Ecology and Environment's "List of Registered National Greenhouse Gas Voluntary Emission Reduction Methodologies (Third Batch)", the technical solution of the present invention has developed a carbon emission reduction algorithm model for new energy vehicles. The idea of this methodology is: collect driving behaviors, and calculate the reduced fuel consumption under the same driving scenario. Through this method, the emission reduction of new energy vehicles compared with fuel vehicles under the same driving conditions can be accurately calculated. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0030] Figure 1 It is a flowchart of the steps of the new energy vehicle carbon emission reduction measurement method described in the present invention;

[0031] Figure 2 It is a principle topology diagram of a new energy vehicle carbon emission reduction measurement device described in the present invention. Detailed implementation manners

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the specification of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, the descriptions such as "first" and "second" in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meanings of "several" and "multiple" are at least two, such as two, three, etc., unless otherwise specifically defined.

[0035] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0036] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0037] The present invention provides a method and device for measuring the carbon emission reduction amount of new energy vehicles, aiming to design a method for measuring the carbon emission reduction amount of new energy vehicles during driving.

[0038] The method for measuring the carbon emission reduction amount of new energy vehicles proposed by the present invention will be described below in specific embodiments:

[0039] Embodiment 1:

[0040] A method for measuring the carbon emission reduction of new energy vehicles is as follows Figure 1 shown, including the following steps:

[0041] S10: Obtain the data information and driving status information of new energy vehicles;

[0042] S20: Calculate the instantaneous power of new energy vehicles in different driving states, and calculate the baseline emissions BE according to the instantaneous power of new energy vehicles in different states;

[0043] S30: Calculate the project emissions PE according to the power consumption of new energy vehicles and the CO2 emission factor per unit power consumption;

[0044] S40: Calculate the emission reduction amount ER of new energy vehicles. The calculation formula is: ER = BE - PE.

[0045] It can be understood that under different conditions, the energy consumption of vehicles varies. Based on the "Methodology for Achieving Emission Reductions through Electric and Hybrid Vehicles (CMS-048-V01)" approved by the "List of the Third Batch of National Greenhouse Gas Voluntary Emission Reduction Methodologies" of the Ministry of Ecology and Environment, this application has developed an algorithm model for calculating the carbon emission reduction of new energy vehicles. The idea of this methodology is: collect driving behaviors, calculate the reduced fuel consumption under the same driving scenario, and through the above method, the emission reduction amount of new energy vehicles compared with fuel vehicles under the same driving conditions can be accurately calculated.

[0046] Furthermore, in the step of calculating the instantaneous power of new energy vehicles in different states and calculating the baseline emissions BE according to the instantaneous power of new energy vehicles in different states,

[0047] the instantaneous power of different driving states includes the instantaneous power of the vehicle moving at a constant speed, the instantaneous power of the vehicle idling, the instantaneous power of the vehicle accelerating, and the instantaneous power of the vehicle decelerating;

[0048] The calculation formula for the instantaneous power P is: P = UI / ηe;

[0049] U is the voltage, I is the current, and ηe is the effective thermal efficiency, which is obtained by collecting the vehicle specifications of the top 20% of the sales volume for private transportation in accordance with the "General Provisions on Sampling and Investigation of Small-Scale Voluntary Emission Reduction Project Activities" of the United Nations Framework Convention on Climate Change.

[0050] Furthermore, in the step of calculating the instantaneous power of new energy vehicles in different states and calculating the baseline emissions BE according to the instantaneous power of new energy vehicles in different states, the calculation formula for the baseline emissions BE is:

[0051]

[0052] Among them, E is the fossil fuel consumption emission factor of the baseline vehicle (gCO2 / J), P1 is the instantaneous power of the vehicle at a constant speed, P2 is the instantaneous power of the vehicle at idle speed, P3 is the instantaneous power of the vehicle during acceleration, P r is the instantaneous power of the vehicle during deceleration, obtained through the driving state acquisition module, h1 is the duration of the vehicle driving at a constant speed, h2 is the duration of the vehicle driving at idle speed, h3 is the duration of the vehicle driving during acceleration, h4 is the duration of the vehicle driving during deceleration, η v is the engine thermal efficiency, η b is the conversion rate of the kinetic energy recovery power to charge the battery, NCV i is the net calorific value of the i-type fossil fuel of the baseline vehicle, taken from the IPCC 2006 default value.

[0053] It can be understood that due to different driving behaviors, the fuel consumption of fuel vehicles is different. The BE baseline emissions divide fuel vehicles into four scenarios: idle speed, constant speed, acceleration, and deceleration according to the scenario to accurately distinguish the energy consumption. Therefore, the baseline emissions can be calculated according to the above method.

[0054] Furthermore, in the step of calculating the project emissions PE according to the power consumption of the new energy vehicle and the CO2 emission factor per unit power consumption, the calculation formula for the project emissions PE is: PE = Wd × EF;

[0055] W d is the power consumption of the vehicle in kWh, obtained through the energy consumption acquisition module of the new energy vehicle carbon emission reduction measurement device; EF is the CO2 emission factor per unit power consumption (kgCO2 / kWh), and thus the project emissions can be calculated.

[0056] Example 2:

[0057] A method for measuring the carbon emission reduction of a new energy vehicle includes the following steps:

[0058] Obtain the instantaneous power and time of the new energy vehicle in the constant speed, idle speed, acceleration, and deceleration states, as shown in Table 1 specifically,

[0059] Calculate the baseline emissions BE, and the calculation formula is:

[0060]

[0061] Calculate the project emissions PE, and the calculation formula is: PE = Wd × EF;

[0062] Calculate the carbon emission reduction ER of the new energy vehicle, and the calculation formula is: ER = BE - PE. The calculation results are shown in Table 1.

[0063] Table 1

[0064]

[0065] where η b = 0.4; NCV i = 33580 kJ / L; EF = 0.5629 kgCO2 / kWh; E = 2.2631 kgCO2 / L; η v = 0.25.

[0066] Example 3:

[0067] The present invention also provides a new energy vehicle carbon emission reduction measurement device (hereinafter referred to as the carbon meter), including:

[0068] An energy consumption acquisition module, which is used to connect to the outlet of the new energy vehicle battery pack to obtain the physical quantities of battery charging and discharging; and obtain the battery charging and discharging status by connecting to the vehicle computer.

[0069] A driving state acquisition module, which is used to connect to the vehicle electronic control system of the new energy vehicle to collect the driving state of the new energy vehicle; or collect the vehicle acceleration through a high-precision multi-axis gyroscope to calculate the driving state of the new energy vehicle.

[0070] A measurement and calculation module, which is used to combine the physical quantities collected by the energy consumption acquisition module and the driving state acquisition module, and calculate the carbon emission reduction in combination with the new energy vehicle emission reduction algorithm.

[0071] As described above, it is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A method for measuring the carbon emission reduction of new energy vehicles, characterized in that, Including the following steps: Obtain the data information and driving status information of new energy vehicles; Calculate the instantaneous power of new energy vehicles in different driving states, and calculate the baseline emissions BE according to the instantaneous power of new energy vehicles in different states; Calculate the project emissions PE according to the power consumption of new energy vehicles and the CO2 emission factor per unit power consumption; Calculate the emission reduction amount ER of new energy vehicles, and the calculation formula is: ER = BE - PE; In the step of calculating the instantaneous power of new energy vehicles in different states and calculating the baseline emissions BE according to the instantaneous power of new energy vehicles in different states, The instantaneous power of different driving states includes the instantaneous power of the vehicle moving at a constant speed, the instantaneous power of the vehicle idling, the instantaneous power of the vehicle accelerating, and the instantaneous power of the vehicle decelerating; The calculation formula of the instantaneous power P is: P = UI / η e U is the voltage, I is the current, and η e is the effective thermal efficiency; In the step of calculating the instantaneous power of new energy vehicles in different states and calculating the baseline emissions BE according to the instantaneous power of new energy vehicles in different states, the calculation formula of the baseline emissions BE is: Among them, E is the fossil fuel consumption emission factor of the baseline vehicle, P1 is the instantaneous power of the vehicle at a constant speed, P2 is the instantaneous power of the vehicle at idle speed, P3 is the instantaneous power of the vehicle during acceleration, P r is the instantaneous power of the vehicle during deceleration, obtained through the driving state acquisition module, h1 is the duration of the vehicle driving at a constant speed, h2 is the duration of the vehicle driving at idle speed, h3 is the duration of the vehicle driving during acceleration, h4 is the duration of the vehicle driving during deceleration, η v is the engine thermal efficiency, η b is the conversion rate of the kinetic energy recovery power charged into the battery, NCV i is the net calorific value of the i-type fossil fuel of the baseline vehicle; In the step of calculating the project emissions PE according to the power consumption of new energy vehicles and the CO2 emission factor per unit power consumption, the calculation formula of the project emissions PE is: PE = W d × EF W d where W is the power consumption of the vehicle in kWh, and EF is the CO2 emission factor per unit power consumption.

2. A carbon emission reduction measurement device for new energy vehicles, characterized in that, Including: An energy consumption acquisition module, which is used to connect to the outlet of the new energy vehicle battery pack to obtain the physical quantities of battery charging and discharging; And obtain the battery charging and discharging status by connecting to the vehicle computer; A driving status acquisition module, which is used to connect to the vehicle electronic control system of the new energy vehicle to collect the driving status of the new energy vehicle; or collect the vehicle acceleration through a high-precision multi-axis gyroscope and calculate the driving status of the new energy vehicle; A metering and calculation module, which is used to combine the physical quantities collected by the energy consumption acquisition module and the driving status acquisition module, and perform carbon emission reduction calculations in combination with the new energy vehicle emission reduction algorithm.

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