Details page | Paper / Information search system

Search

Search help

Summary & Details

Pollutant Emissions of a Blended Plug-In Hybrid Electric Vehicle during High-Power Cold Starts

Delivery: Available on this site

Format: PDF

Price: Non-members (tax incl.)：￥1,100 Members (tax incl.)：￥880

Publication code: 20239236

Paper/Info type: Other International Conferences

Pages: 1-8(Total 8 p)

Date of publication: Aug 2023

Publisher: JSAE & SAE

Language: English

Event: 2023 P, E&L

Detailed Information

Category(E)	EC1 Testing and Emissions Measurement
Author(E)	1) Guikun Tan, 2) Yanfei Li, 3) Boyuan Wang, 4) Hongming Xu, 5) Shijin Shuai, 6) Zemin Eitan Liu
Affiliation(E)	1) Tsinghua Univeristy, 2) Tsinghua University, 3) Tsinghua University, 4) Tsinghua University, 5) Tsinghua University, 6) Tsinghua Univeristy
Abstract(E)	Plug-in hybrid electric vehicles (PHEVs) can effectively reduce fuel consumption and CO₂ emissions, but the pollutant emission characteristics and engine operating conditions during high-power cold starts (HPCSs) are seldom reported. To fill this research gap, a blended PHEV was tested during worldwide light-duty test procedure (WLTC) and a new cycle was developed. The results in WLTC test indicated that two HPCSs occurred under charge depleting (CD) mode, while a convention cold start occurred under charge-sustaining (CS) mode. The particle number (PN) and NOx emissions during the HPCS were both higher than those of the conventional cold-start, but the CO and HC emissions were lower. The difference in emission characteristic of two kinds of cold starts was caused by the difference in engine operating conditions. During HPCSs, the engine speed and load increased dramatically to high level under the low temperature of coolant or three-way catalytic converter (TWC), while the engine idled for ~1 minute and then the engine speed and load increased slowly during the conventional cold start. The results in the developed cycle indicated that the PN emissions during HPCSs increased first and then decreased with the increasing coolant temperature. The PN emissions increased by 16% when the coolant temperature rose from ~20 ℃ to ~30 ℃, and the PN emissions decreases by 72% when the coolant temperature rose from~20 ℃ to ~60 ℃.

About search

How to use the search box

You can enter up to 5 search conditions. The number of search boxes can be increased or decreased with the "+" and "-" buttons on the right.

If you enter multiple words separated by spaces in one search box, the data that "contains all" of the entered words will be searched (AND search).

Example) X (space) Y → "X and Y (including)"

How to use "AND" and "OR" pull-down

If "AND" is specified, the "contains both" data of the phrase entered in the previous and next search boxes will be searched. If you specify "OR", the data that "contains" any of the words entered in the search boxes before and after is searched.

Example) X AND Y → "X and Y (including)" X OR Z → "X or Z (including)"

If AND and OR searches are mixed, OR search has priority.

Example) X AND Y OR Z → X AND (Y OR Z)

If AND search and multiple OR search are mixed, OR search has priority.

Example) W AND X OR Y OR Z → W AND (X OR Y OR Z)

How to use the search filters

Use the "search filters" when you want to narrow down the search results, such as when there are too many search results. If you check each item, the search results will be narrowed down to only the data that includes that item.

The number in "()" after each item is the number of data that includes that item.

Search tips

When searching by author name, enter the first and last name separated by a space, such as "Taro Jidosha".