INTERMITTENT ENGINE OPERATION - A WAY TO REDUCE VEHICLE FUEL CONSUMPTION
With conventional vehicle drivelines, the engine is normally run at low load, where its efficiency is poor. The fuel consumption could be reduced if the engine were run intermittently at high load and then disengaged. The surplus power produced when the engine is engaged can be used to charge an Energy Storage Unit (ESU), e.g. a flywheel. During the periods of disengagement, the ESU will drive the vehicle. Simulations show a possible reduction at road and city driving of 10 and 18 percent, respectively. Those values are valid for medium-sized and large cars. For small cars, the reductions were lower. An alternative to an ESU is to let the vehicle speed vary. The vehicle will then accelerate when the engine is engaged, and decelerate when it is disengaged. At road driving speeds, simulations indicated a fuel consumption reduction potential of about 14 percent. (A) For the covering abstract see IRRD 874988.
-
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/7800033082
-
Corporate Authors:
INTERNATIONAL ACADEMIC PUBLISHERS
137 CHAOKEI DAJIE
BEIJING, China -
Authors:
- HEDMAN, A
- Conference:
- Publication Date: 1994
Language
- English
Media Info
- Features: References;
- Pagination: p. 227-30
Subject/Index Terms
- TRT Terms: Conferences; Energy; Flywheels; Fuel consumption; Handling and storage; Motors; Simulation; Speed; Storage facilities; Vehicles
- Uncontrolled Terms: Decreases
- ITRD Terms: 8525: Conference; 9009: Decrease; 213: Energy; 1324: Flywheel; 232: Fuel consumption; 1334: Motor; 9103: Simulation; 5408: Speed; 1255: Vehicle
- Subject Areas: Energy; Freight Transportation; Terminals and Facilities; Vehicles and Equipment;
Filing Info
- Accession Number: 00717934
- Record Type: Publication
- Source Agency: Transport Research Laboratory
- ISBN: 7-80003-308-2
- Files: ITRD
- Created Date: Mar 20 1996 12:00AM