Abstract:
The present invention relates to a method for the propulsion of a vehicle (100), whereby the said vehicle (100) comprises a combustion engine (101), and a gearbox (103) that, can be adjusted to a number of gear ratios for the transfer of a force between the said combustion engine (101) and at least one driving wheel (113, 114), whereby the said combustion engine (101) comprises at least one combustion chamber with at least one inlet for the supply of combustion gas and at least one outlet for the evacuation of an exhaust gas flow that has resulted from combustion in the said combustion chamber, further comprising a turbocharger unit (203) for the pressurisation of the said combustion gas. The method comprises, during the change of gear from a first higher gear ratio to a second lower gear ratio, where the rate of revolution of the combustion engine (101) is reduced from a first rate of revolution to a second rate of revolution, the following; - to increase the pressure (P ut ) at the said outlet (202) at least through the use of the said turbocharger unit for constriction of the said exhaust gas flow, - to reduce the pressure (P in ) at the said combustion gas through the opening of a first valve (221), and - to control, when the rate of revolution (n) of the said combustion engine (101) has at least partially fallen towards the said second rate of revolution (n 2 ), the said turbocharger unit (203) such that the said combustion gas pressure (P in ) is increased. The invention concerns also a system and a vehicle.
Abstract:
Verfahren zum Betreiben einer Antriebseinrichtung, umfassend eine Brennkraftmaschine 1 und zumindest ein weiteres Antriebsaggregat 5, wobei ein von der Brennkraftmaschine 1 beim Betrieb derselben emittiertes Abgas mittels eines Abgasnachbehandlungssystems behandelt wird, und wobei bei einer Abgastemperatur unterhalb einer Grenzwerttemperatur die Abgastemperatur erhöht wird. Erfindungsgemäß wird der Betrieb der Antriebseinrichtung verbessert. Erreicht wird dies dadurch, dassunterhalb der Grenzwerttemperatur eine Abgasrückführung an der Brennkraftmaschine einstellt wird und bei einer zu erhöhenden Leistungsabgabe der Brennkraftmaschine das weitere Antriebsaggregat zur Unterstützung der Leistungsabgabe aktiviert wird.
Abstract:
The present invention relates to a method for control of pumping work of a combustion engine (10) to lower a speed ω of the engine (10), which engine has an intake pipe (2) and an exhaust pipe (22) connected to it, the engine's pumping work being increased or decreased by regulation of a gas pressure in the intake pipe (2). The invention further relates to a device for control of pumping work of a combustion engine, a computer programme, a computer programme product and a motor vehicle provided with such a device.
Abstract:
A vehicle having a system for determining that there is a possibility that the vehicle has or is about to enter water at a vehicle wading depth. In response to determining that there is a possibility that the vehicle has or is about to enter water at a vehicle wading depth, the system is configured to implement one or more vehicle control strategies. The system comprises at least one remote sensor configured to remotely detect the presence of water about or ahead of the vehicle.