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52:, is performed automatically by the engine controller. For vehicles with a conventional internal combustion engine, coasting can be performed manually; gliding requires having a gear box. Manual gliding or coasting is illegal in some states. An extra button to stop the engine was shown in 1979 on
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Pushing the clutch pedal disengages the engine from the powertrain like wheels, drive shafts and gearbox. Releasing the accelerator makes the engine slow down to idle. Turning off the ignition has further effects. Pulling the key causes locking of the steering wheel. Some vehicles switch off
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Coasting is continuing the vehicle to move by disengaging the clutch or by selecting neutral gear, with the proviso that it is not necessary to do so in order to facilitate easy control of the vehicle. Having the clutch disengaged at low speeds or when the engine would provide little or no
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It may also be seen as driving the vehicle at a higher speed than the idle speed of the engine and then disengaging the engine from the wheels by setting the transmission or gearbox to neutral position or disengaging the clutch, maintaining the engine in idle mode.
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might be required to be electrically powered, but in most vehicles these components are driven by the combustion engine, only. The fuel saving is depending more on the road terrain and traffic conditions. It is assumed to save up to 7% fuel in the NEDC
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reserve stored in the vehicles mass, i.e. inertia, to keep the vehicle moving. This energy, however, is being lost due to forces that resist movement, such as air-drag, rolling resistance and gravity. The functionality, being an integral concept of
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A look on a dashboard at driving speed of 50 km/h. Upper picture shows gliding, where the combustion engine is turned off. Picture below shows coasting where the engine is idling due to a disengaged clutch or the transmission being in
43:, which means running the vehicle in idle mode by disengaging the engine from the wheels, either by disengaging the clutch or setting the transmission or gearbox to neutral position. Gliding and coasting use the accelerated
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headlights or brake lights when the ignition is turned off. After the engine is stopped, applying the brake takes a longer time or giving a few pushes to the brake releases the reserve of the
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at a rough start over clutch from gliding vehicles kinetic power or trailing drag. Using a higher gear decreases the torque force on the powertrain. By turning off the ignition the
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causes damage due lack of lubrication. Also, restarting the engine by clutch from the vehicle's kinetic energy or drag is not possible. It is required to use the
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turns the engine off when the vehicle is stopped. Gliding is turning off the engine while the vehicle is still moving. Safety relevant components like
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fails immediately. Real hybrid vehicles have electric-driven support of power steering and brake. Bigger engines and engines with a higher
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157:. Gliding a vehicle with a turbo engine makes the remaining heat from the exhaust cause damage in the bearing of the turbo.
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294:"Was sorgt für Peugeot-DPF-Problem? VW-Standard-Fehler Kraftstoffleitung & verbaute Qashqai-Sicherung - YouTube"
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temporarily takes more fuel until operation temperature of the engine is detected by the ECU.
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134:(ECU) needs to detect the engine shafts position. Some ECUs need several rotations of the
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while the vehicle is still moving in order to save fuel. This is differentiated from
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is not classified as coasting, it is merely facilitating easier car control.
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and can not get the gear in at differing vehicle and engine speeds.
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Being more fuel efficient by letting go of the gas pedal when moving
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Publication to the Press on 6 May 2013, retrieved 15 September 2013
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Erweitertes Start/Stopp-System von Bosch spart noch mehr
Kraftstoff
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to disengage the clutch when the driver releases the accelerator.
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to detect ignition and injection timing. Starting the engine in
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266:(PDF; 10,7 MB) 911, retrieved 15 September 2013
220:"IAA 1979 - Porsche 928 S", uploaded 11 January 2016
240:Die eClutch spart Sprit und erhöht den Komfort
192:Konrad Reif, Karl E. Noreikat, Kai Borgeest:
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64:(electronic controlled clutch) uses an
126:can cause damage to components of the
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35:mode achieved by turning off the
54:International Motor Show Germany
306:from the original on 2019-06-27
145:Gliding vehicles equipped with
109:Gliding a conventional vehicle
1:
242:, retrieved 19 September 2013
211:, retrieved 14 September 2013
194:Kraftfahrzeug-Hybridantriebe
159:Unsynchronized transmissions
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37:internal combustion engine
281:dual-clutch transmission
50:hybrid electric vehicles
33:energy-efficient driving
151:automatic transmissions
275:BMW offers gliding on
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277:manual transmissions
340:Transport economics
335:Energy conservation
132:engine control unit
330:Driving techniques
235:2016-01-06 at the
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230:pressrelations.de
124:compression ratio
73:start-stop system
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175:Consumption map
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116:vacuum servo
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81:vacuum servo
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264:porsche.com
324:Categories
310:2019-05-13
181:References
140:cold start
128:powertrain
304:Archived
233:Archived
169:See also
161:require
136:camshaft
92:Coasting
66:actuator
41:coasting
24:neutral.
299:YouTube
155:starter
149:-based
62:eClutch
58:IRVW II
29:Gliding
31:is an
79:or
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71:A
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