Your Selections

Shimoyama, Kazuaki
Show Only

Collections

File Formats

Content Types

Dates

Sectors

Topics

Authors

Publishers

Affiliations

Events

   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Development of High-performance Diesel Engine Compliant with Euro-V

Honda R&D Co., Ltd. Automobile R&D Center-Ryuta Matsui, Kazuaki Shimoyama, Shigeji Nonaka, Isao Chiba, Shoshi Hidaka
Published 2008-04-14 by SAE International in United States
Honda has newly developed a 2.2 L 4-cylinder turbocharged diesel engine that has achieved high power and lower exhaust gas emissions. This engine is a second generation diesel engine, following the first diesel engine for vehicles at Honda, which was launched in 2004. This engine has realized large reductions in exhaust emissions, to allow compliance with EURO-V standards, and enhancements in output and NV performance. To enhance low exhaust emission performance, this engine adopted a 180 MPa common-rail system and optimized the shape of the combustion-chamber. Moreover, to enhance control accuracy under steady state and transient conditions, a Universal Exhaust Gas Oxygen (UEGO) sensor system was applied, and an electric-controlled EGR valve and electric swirl control valve newly developed. In order to enhance output, a newly developed highly efficient variable nozzle turbine (VNT) was adopted, and intake and exhaust system performance have been enhanced. The maximum power and maximum torque of this engine have been increased to 132 kW/380 Nm from 103 kW/340 Nm, compared to the previous model engine. NV performance is a vital…
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Prediction of Camshaft Torque and Timing Chain Load for Turbo Direct Injection Diesel Engine

Honda R&D Co., Ltd., Tochigi R&D Center, Japan-Hiroshi Takagishi, Kazuaki Shimoyama, Masaru Asari
Published 2004-03-08 by SAE International in United States
The fluctuation of the crankshaft rotational speed of a turbo supercharged direct-injection diesel (hereafter called i-CTDi) engine is large, causing the timing chain load and the valve train driving torque to increase.To overcome this, a simulation method that enables the timing chain load and the valve train driving torque to be predicted while taking account of the fluctuation of the crankshaft rotational speed was established. In this simulation, all of the moving parts centered about the crankshaft were coupled, and an engine in a working condition was faithfully constructed in the computer. In the construction of the model, the issue of the conflicting topics of securing accuracy and reducing computing time was solved by looking at the frequency response of each part and adopting a simple model.As a result, it was possible to predict both the timing chain load and the valve train driving torque with high accuracy and in a short time. Also, this virtual engine was able to contribute to the optimum design of the actual valve train and timing chain.
Annotation ability available