Abstract:
To provide a working machine (10) including a lower travelling body (12) and an upper slewing body (14) disposed in a slewable manner with respect to the lower travelling body, the working machine being capable of more reliably preventing the upper slewing body from coming into contact with an obstacle existing around the working machine. The working machine includes a detection device (480), a position identification device (481), and a movement control device (442). The position identification device includes a calculation section (4811), a conversion section (4812), and an identification section (4813). The movement control device controls the movement of the upper slewing body in such a way as to prevent the upper slewing body from coming into contact with the obstacle based on the position of the obstacle relative to the virtual boundary surface, the position being identified by the identification section.
Abstract:
A parameter calculation part (390) calculates an adaptive gain coefficient 'k' for the road surface conditions of the road being traveled upon, on the basis of a frictional coefficient µ and a slip ratio » sent from an acquisition part (310) and a coefficient 'b' in a storage part (380). Subsequently, the parameter calculation part (390) calculates an adaptive time constant Ä by which the stability of traction control can be ensured, on the basis of the gain coefficient 'k' and a coefficient 'a' within the storage part (380). Along with the calculated gain coefficient 'k' being set in a gain multiplication part (370), the calculated time constant Ä is set in a filter part (360). According to these settings, model following control is executed by taking, as a reference model, an adhesion model in which driving wheel does not slip. As a result, it is possible to enhance the slip prevention performance while ensuring control stability, and also possible to implement stable traveling while ensuring the required drive force in accordance with the road surface state.
Abstract:
Die Erfindung betrifft ein Verfahren zum Betreiben eines Fahrzeugs (2), das mehrere Räder (8, 10,12, 14) und mehrere Elektromaschinen (16, 18, 20, 22) aufweist, wobei jede Elektromaschine (16, 18, 20, 22) mit mindestens einem Rad (8, 10, 12, 14) gekoppelt und in mehreren Betriebsmodi betreibbar ist, wobei die jeweilige Elektromaschine (16, 18, 20, 22) in einem ersten motorischen Betriebsmodus in einer ersten Drehrichtung gedreht wird, wobei elektrische Energie in mechanische Energie gewandelt wird, wobei das mindestens eine Rad (8, 10, 12, 14) in einer Vorwärtsrichtung gedreht wird, wodurch das Fahrzeug mit dem mindestens einen Rad (8, 10, 12, 14) angetrieben wird, wobei die jeweilige Elektromaschine (16, 18, 20, 22) in einem zweiten motorischen Betriebsmodus in einer zweiten Drehrichtung gedreht wird, die der ersten Drehrichtung entgegengesetzt ist, wobei elektrische Energie in mechanische Energie gewandelt wird, wobei das mindestens eine Rad (8, 10, 12, 14) in einer Rückwärtsrichtung gedreht wird, wodurch das Fahrzeug mit dem mindestens einen Rad (8, 10, 12, 14) gebremst wird, wobei für die jeweilige Elektromaschine (16, 18, 20, 22) ein dritter generatorischer Betriebsmodus vorgesehen ist, wobei das mindestens eine Rad (8, 10, 12, 14) in der Vorwärtsrichtung gedreht wird, wobei mechanische Energie, die aus einer Bewegung des mindestens einen Rads (8, 10, 12, 14) resultiert, von der jeweiligen Elektromaschine (16, 18, 20, 22) im dritten generatorischen Betriebsmodus in elektrische Energie gewandelt wird, wodurch das Fahrzeug (2) gebremst wird.
Abstract:
The invention relates to a method for communication between software components in a motor vehicle, wherein the software components can be operated in different modes of operation, wherein the software components communicate with one another differently in the different modes of operation, wherein it is determined at a first time (210) which software components communicate (211) with one another in what way in each of the different modes of operation, and this is taken as a basis for determining (212) a respective communication profile for each of the different modes operation, wherein the software components are operated in the different modes of operation at a second time (220) and one or more computation unit(s) (110) executing the software components (A, B, C, D, E, F) is/are configured (221, 223) in accordance with an appropriate communication profile of the respective mode of operation.
Abstract:
According to a vehicle and a method for controlling the same, a controller (20) determines whether or not an idling stop condition has been met when an engine (12) is driving. If determining that the idling stop condition has been met, the controller (20) stops the engine (12) from idling. Further, if the controller (20) receives an operation command to a fork driving cylinder (41) operated by a cargo handling lever (17) when the engine (12) stops idling, the controller (20) starts the engine (12) and brings a cargo handling oil pump (32) of the fork driving cylinder (41) into a loaded state before the number of revolutions of the engine reaches a range of the number of revolutions of idling.
Abstract:
The straight tracking control system (200) can use a control method to achieve a desired straight motion of a machine (100) with a dual path electronically controlled hydrostatic transmission. In the control method, the first drive system (106), e.g., the left or right drive system (106), pump solenoid current can be modified based on first and second drive system velocity feedback when the machine (100) is commanded to move in a straight line path in the forward or reverse direction. A memory latching concept is used to latch the straight tracking factor at the initiation of and during the turn so the same straight tracking factor is used throughout the turn. The straight tracking factor is unlatched at the completion of a turn after a specific time delay and a new straight tracking factor can be calculated. The straight tracking method also utilizes transmission fluid temperature and utilizes additional fluid reserve in order to maintain straight machine movement.
Abstract:
Some embodiments provide an autonomous navigation system which enables autonomous navigation of a vehicle along one or more portions of a driving route based on monitoring, at the vehicle, various features of the route as the vehicle is manually navigated along the route to develop a characterization of the route. The characterization is progressively updated with repeated manual navigations along the route, and autonomous navigation of the route is enabled when a confidence indicator of the characterization meets a threshold indication. Characterizations can be updated in response to the vehicle encountering changes in the route and can include a set of driving rules associated with the route, where the driving rules are developed based on monitoring the navigation of one or more vehicles of the route. Characterizations can be uploaded to a remote system which processes data to develop and refine route characterizations and provide characterizations to one or more vehicles.
Abstract:
An automated driving system and methods are disclosed. The automated driving system includes a perception system disposed on an autonomous vehicle. The automated driving system can detect an intersection including a yield scenario and identify a check point between the autonomous vehicle and the yield scenario. Prior to the autonomous vehicle reaching the check point, the automated driving system can send a command to one or more vehicle systems to control the autonomous vehicle to stop at the yield scenario. After the autonomous vehicle reaches the check point, the automated driving system can detect, using the perception system, information for the intersection. If the information indicates clear passage through the intersection for the autonomous vehicle, the automated driving system can send a command to the one or more vehicle systems to drive the autonomous vehicle through the intersection.
Abstract:
The present invention provides an automatic driving system capable of clearly identifying the factors responsible for causing an abnormality such as an accident or malfunction of a vehicle during automatic driving after the fact. The automatic driving system automatically selects, from each automatic driving function provided in the vehicle or each level of driving automation into which each automatic driving function is classified, an automatic driving function or a level of driving automation according to the circumstances surrounding the vehicle or the driving state of the vehicle, automatically performs a part of or the entirety of a vehicle driving operation to automatically drive the vehicle, and, remembers the time of automatic driving and information indicating the selected automatic driving function or level of driving automation at that time.