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Engine Control System for a Natural Gas Vehicle
Technical Paper
2002-21-0032
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English
Abstract
The natural gas vehicle has high potential as a clean alternative fuel vehicle because of its clean burning characteristics. Honda has been developing a dedicated compressed natural gas (CNG) vehicle since 1998. It has achieved near-zero emissions and the 2001 model year Civic GX was the first vehicle to be certified as AT P-ZEV (Advanced Technology, Partial-credit, Zero Emission Vehicle) by the California Air Resources Board (CARB).
A key technology for low emissions is precise air-fuel ratio control. We adopted a fuel supply system with multi-point injectors and 2-stage pressure regulators. A power control module (PCM) calculates the fuel injection rate by receiving signals from the fuel pressure sensor and the fuel temperature sensor. The PCM maintains an optimum air-fuel ratio using two newly developed heated oxygen sensors.
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Citation
Murakami, A., Toda, T., and Matsuki, M., "Engine Control System for a Natural Gas Vehicle," SAE Technical Paper 2002-21-0032, 2002.Also In
References
- Hiromi Matsuura Atsushi Kato Masanobu Yamashiro Isao Fujii “HONDA Dedicated CNG Passenger Vehicle” Conference Proceeding og NGV'96 2
- Toshiyuki Suga Tadashi Muraishi Thomas Brachimann Fumio Yatabe “Potential of a Natural Gas Vehicle as EEV” SAE Technical Paper # 2001-01-1863
- Hosogai S. Kubota H. “Near-Zero Emission Technology of Natural Gas Vehicle” JSAE 1998 Autumn Conference Proceedings (No. 87-98) 1 4