Abstract:
Described herein is a system and method that recognizes vehicle lane departure in road conditions affected by environmental conditions. The system uses magnetic field flux detection to determine if a vehicle is departing from a projected vehicle trajectory or a determined vehicle position between lanes. A magnetic material is applied to the stripes painted on road surfaces or on other applicable lane boundary indicators. The system uses magnetic field flux sensors or Hall Effect sensors mounted in the vehicle to recognize changes in magnetic field flux from the magnetized road stripe. These changes in magnetic field flux are interpreted by the system to determine whether alarms should be initiated for vehicle lane departure.
Abstract:
A drive system for a vehicle comprises two electrical machines (9, 30) arranged between a combustion engine (2) and an input shaft (3a) to a gearbox. The rotor of a first (9) of the electrical machines is connected with a component of a planetary gear, and the input shaft of the gearbox with another component of such planetary gear. The rotor of the second electrical machine (30) is connected with the output shaft (2a) of the combustion engine, which is also connected with another component of the planetary gear. A first locking means may be moved between a locked position, in which the planetary gear's three components rotate at the same rotational speed, and a release position, in which the components are allowed to rotate at different rotational speeds. A second locking means (33) is moveable between a locked position, in which the output shaft of the combustion engine is locked together with the second electrical machine's rotor (32) and a release position, in which the combustion engine's output shaft is disconnected from the second electrical machine's rotor.
Abstract:
In a method for control of a vehicle with a drive system comprising an output shaft of a combustion engine and a planetary gear with a first (9) and a second (30) electrical machine, connected via their rotors (9b, 32) to the components of the planetary gear, the combustion engine is started while the vehicle is driven by way of ensuring that the rotor of the second electrical machine (30) is connected with the output shaft of the combustion engine, and such electrical machine's rotational speed being controlled towards the combustion engine's idling speed, whereupon fuel injection into the combustion engine is carried out to start the latter.
Abstract:
In a method for control of a vehicle with a drive system comprising an output shaft in a combustion engine (2), a planetary gear and a first (9) and second (30) electrical machine, connected to the planetary gear, the turning off of the combustion engine is achieved, when the vehicle is driven with the combustion engine running, and a transition to operation of the vehicle with the electrical machines is achieved, by ensuring that the second electrical machine's rotor (32) is connected with the combustion engine's output shaft, that injection of fuel into the combustion engine is interrupted and that the second electrical machines rotational speed is controlled towards and until a standstill, where-upon the combustion engine's output shaft is disconnected from the second electrical machine and the planetary gear.
Abstract:
A system and method for recovering the optimum power level during regenerative mode is disclosed. Equations for determining the optimum regenerative power level receivable by an energy storage system, for example for any given deceleration event, are derived and disclosed. The equations consider various losses such as the efficiency of the electric motor generator in the generator mode, wind resistance, rolling resistance, transmission losses, engine losses, and losses in the energy storage system. Also disclosed is at least one embodiment of a procedure for controlling a hybrid drive system to achieve the optimum energy recovery.
Abstract:
Es wird ein Verfahren beschrieben zur Restenergieabschätzung eines elektrischen Energiespeichers (20). Dieser versorgt einen elektrischen Unterstützungstraktionsantrieb (30) eines Kraftfahrzeugs (10) mit elektrischer Energie. Das Verfahren umfasst die Schritte: - Ermitteln einer zukünftigen Betriebsintensität des Unterstützungstraktionsantriebs (30) anhand mindestens einer Eingabe. Die Eingabe kennzeichnet die Fahrweise einer vorausliegenden Fahrstrecke. - Reservieren eines Energieanteils einer insgesamt zur Verfügung stehenden Energiemenge des Energiespeichers (20). Der reservierte Energieanteil wird aus der ermittelten zukünftigen Betriebsintensität anhand eines vorgegebenen Verbrauchsparameters ermittelt. Der Verbrauchsparameter kennzeichnet den antriebsspezifischen Verbrauch elektrischer Energie durch den elektrischen Unterstützungstraktionsantrieb (30) und - Schätzen der Restenergie durch Reduzieren der insgesamt zur Verfügung stehenden Energiemenge um den reservierten Energieanteil. Ferner werden eine Vorrichtung (40) zur Restenergieabschätzung und eine Steuereinrichtung (22) beschrieben.
Abstract:
Verfahren zur Überwachung eines Drive-by-Wire-Systems eines Kraftfahrzeugs, mit den Schritten: Zeitlich versetztes Einlesen von zumindest zwei Eingabewerten (W) einer Eingabegröße eines Bedienelements des Kraftfahrzeugs, Ermitteln einer zeitlichen Änderung oder Änderungsrate der Eingabegröße aus den zumindest zwei eingelesenen Eingabewerten (W), Bestimmen einer Überwachungsgröße (a) für den Kraftfahrzeugbetrieb aus der zeitlichen Änderung oder Änderungsrate, Auswählen einer Überwachungsfunktion anhand der Überwachungsgröße (a), Überwachen der Überwachungsgröße (a) für den ermittelten Kraftfahrzeugbetrieb mittels der Überwachungsfunktion.