Abstract:
A motor vehicle having: prime mover means; at least first and second groups of one or more wheels; and a driveline operable by means of control means to connect a torque transmission path from the prime mover means to the first and second groups of one or more wheels such that the first group of one or more wheels and not the second group is coupled to the torque transmission path when the driveline is in a first mode of operation and both the first and second groups of one or more wheels are coupled to the torque transmission path when the driveline is in a second mode of operation, the driveline being operable to connect the second group to the torque transmission path from the prime mover means by means of an auxiliary portion thereof, the auxiliary portion comprising first and second releasable torque transmitting means and a prop shaft, the first releasable torque transmitting means being operable to connect a first end of the prop shaft to the torque transmission path from the prime mover means, the second releasable torque transmitting means being operable to connect a second end of the prop shaft to the second group of one or more wheels, the control means being operable to control auxiliary portion to switch the driveline between the first and second modes of operation such that in the first mode the prop shaft is disconnected from both the torque transmission path from the prime mover means and said second group of one or more wheels, the control means being operable to control the auxiliary portion to connect the second group of one or more wheels to the torque transmission path from the prime mover means at a required connect rate when the driveline transitions between the first mode and the second mode, wherein when the driveline is in the first mode the control means is operable to control the driveline to transition to the second mode when one of a set of two or more trigger conditions in respect of one or more vehicle operating parameters is met, each trigger condition having a respective identity, the control means being operable to control the driveline to transition from the first mode to the second mode at a connect rate that is responsive to the identity of the trigger condition that is met.
Abstract:
A vehicular motion monitoring method comprises capturing motion observations on¬ board a vehicle with one or more sensors; mapping sets of motion observations onto a respective feature vector in an at least two-dimensional feature space, each feature vector having a first vector component representative of a longitudinal motion characteristic and a second vector component representative of a lateral motion characteristic; updating determinative parameters of a multivariate Gaussian probability density function modelling a population of collected feature vectors; assigning a riskiness indicator to each feature vector, the calculation of the riskiness indicator being based upon an event severity indicator indicative of how anomalous each feature vector is in comparison to the modelled population and upon a position of the feature vector relative to one or more previous and/or subsequent feature vectors; and integrating the riskiness indicator over time so as to obtain a risk assessment of driving style of the driver of the vehicle.
Abstract:
A system for autonomous driving comparison and evaluation comprises an input interface and a processor. The input interface is configured to receive trip information generated during a driver controlled trip and receive information from an autonomous driving system related to actions that the autonomous driving system would have taken had it been in control during the trip. The processor is configured to compare a trip factor of the driver controlled trip with a simulated trip factor that would have occurred had the autonomous driving system been in control.
Abstract:
Die Erfindung bezieht sich auf ein Verfahren zum Betrieb eines Hybridantriebes, insbesondere eines Parallelhybridantriebes, eines Fahrzeugs. Der Parallelhybridantrieb umfasst eine Verbrennungskraftmaschine und mindestens einen elektrischen Antrieb, mindestens einen Energiespeicher sowie ein Fahrzeuggetriebe. Während Verzögerungsphasen, in denen ein getriebeeingangsseitig gefordertes Moment T GE, gef VB, min betrieben.
Abstract:
Die Erfindung betrifft ein Verfahren zur Überprüfung der Steuerungsfähigkeit eines Kraftfahrzeugs (1) , bei dem anhand eines das statische und dynamische Verhalten der für die Steuerungsfähigkeit relevanten Steuerungsgeräte (21-24) und Fahrzeugaggregate (10-13) und deren Eingangsgrößen und Grenz werte sowie die Fahrbahn berücksichtigenden mathematischen Modells eine Aussage über eine maximale und dynamische Leis tungsfähigkeit des Steuerungsvorgangs getroffen wird, wobei das Modell als eine allgemeine Übertragungsfunktion aus dem Produkt der einzelnen Über tragungs funkt ionen der in Wirkver bindung stehenden Steuergeräte (21-24) und Fahrzeugaggregate (10-13) berechnet wird.
Abstract:
A device for controlling the yawing of a vehicle comprises a yaw moment generating mechanism (a) for causing the vehicle to yaw, vehicle behavior sensing means (b) for sensing the behavior of the vehicle, actual yaw moment sensing means (c) included in the vehicle behavior sensing means (b) and adapted for measuring the actual yaw moment generated in the vehicle, target yaw moment calculating means (d) for finding a target yaw moment which is a necessary yaw moment in the current vehicle behavior, and operation instructing means (e) for operating the yaw moment generating mechanism (a) to output a yaw moment equivalent to the difference between the target yaw moment and the actual yaw moment. Therefore, the quality of controlling the yawing of a vehicle is improved by eliminating control delay and vibration in the control, not giving any sense of abnormality to the driver.
Abstract:
The invention relates to a method for detecting an externally caused variable driving or braking a vehicle, especially such a moment, comprising the following steps: model-based detection of the driveability of the vehicle; comparing model output values with the relevant measurement values or the values derived therefrom and detecting the externally caused variable in accordance with comparison results. The corresponding device has a vehicle driveability model (31- 36), a comparator (22) for model output values and relevant measurement values or values derived therefrom and a device (25) for detecting the externally caused variable in accordance with comparison results.
Abstract:
Die Erfindung umfasst ein Verfahren zum Bereitstellen einer Betriebsstrategie für zumindest ein Zielfahrzeug (10), das sich zusammen mit anderen Fremdfahrzeugen (14) auf einem Streckenabschnitt (12) einer Fahrstrecke befindet. Eine Kommunikationseinrichtung (16) des Zielfahrzeugs oder eines externen Datenservers ist dabei mit einer jeweiligen Kommunikationseinrichtung (16) der Fremdfahrzeuge (14) über ein Ad-hoc-Netzwerk, insbesondere über eine Car-to-X-Kommunikation, verbunden. Ein Fremdfahrzeug (14) überträgt ein Positionssignal und/oder eine Information zu einem Betriebsparameter (S10). Eine Verarbeitungseinrichtung (18) ermittelt die Positionen der Fremdfahrzeuge (14) (S30), und kann mithilfe der Informationen zu dem Betriebsparameter ein digitales Modell für eine aktuelle Verkehrslage in dem Streckenabschnitt (S40) ermitteln. Das digitale Modell beschreibt den Streckenabschnitt und die darauf befindlichen Fremdfahrzeuge (14) und ist Basis für eine Betriebsstrategie zum Betreiben des zumindest einen Zielfahrzeugs (10) (S50). Damit kann eine Fahrempfehlung (34) oder eine digitale Repräsentation (30) des Modells ausgegeben werden (S80, S90) oder eine automatische Kraftfahrzeugsteuerung auslösen (S70).