Abstract:
A cooperative event location system is provided having a first system in a first vehicle and a second system. The first system includes a first event detection component to detect an occurrence of an event, a first measurement component to determine a distance traveled from the event, a first processing component coupled to the event detection component and the measurement component to prepare an event message, and a first short-range communication component coupled to the processing component and configured to transmit the event message to the second system remote from the first system. The second system includes a second short-range communication component to receive the event message, a satellite navigation component to provide location information, and a processing component coupled to the second communication component and the satellite navigation component to determine in latitude and longitude coordinates a location of the event.
Abstract:
The control apparatus comprises, in its version intended for a double-clutch transmission with six or seven forward gears and one reverse gear, a first shift fork for engaging the first gear or the third gear, respectively, a second shift fork for engaging the reverse gear or the fifth gear, respectively, a first hydraulic actuator arranged to control the movement of the first shift fork, a second hydraulic actuator arranged to control the movement of the second shift fork, a selection slide valve which can be moved into a first operating position in which the first hydraulic actuator is selected and a second operating position in which the second hydraulic actuator is selected, a pilot solenoid valve for controlling the movement of the slide valve between the first and second operating positions, and first and second gear shift solenoid valves for controlling the supply of fluid to the hydraulic actuator each time selected by the slide valve or the connection of said actuator with a tank. The slide valve is configured in such a manner that the first and second operating positions are end-of-travel positions, wherein the first operating position is a rest position, in which the pilot solenoid valve does not generate any hydraulic pilot control signal and the slide valve is held by resilient means against a first mechanical stop, and wherein the second operating position is a maximum-control position, in which the pilot solenoid valve generates a hydraulic control signal such that the slide valve is brought against a second mechanical stop opposite to the first one.
Abstract:
Multifunctional optical sensor, comprising a matrix of photodetectors of the CCD or CMOS type, having a sensitive area divided into sub-areas, each of which, individually or combined with others, is dedicated to a specific function of monitoring the scene or measuring environmental parameters. The optical sensor comprises a matrix of microlenses, each of which is set to focus the radiation coming from a portion of solid angle on the associated photodetector or cluster of mutually contiguous photodetectors. Each function is associated to a single microlens or to a single subgroup of mutually contiguous microlenses or to multiple, not mutually contiguous microlenses or to multiple, not mutually contiguous subgroups of microlenses. The angular separation between the central directions of the portions of solid angle subtended by adjacent photodetectors or adjacent clusters of photodetectors is not constant within the matrix.
Abstract:
The control system comprises: a first hydraulically-operated actuator device for controlling the engagement of a first set of gears by selection and engagement movements; a second hydraulically-operated actuator device for controlling the engagement of a second set of gears by selection and engagement movements; a first solenoid valve of the ON/OFF type arranged to put the first or the second actuator device alternatively into communication with a supply of fluid under pressure; a second solenoid valve of the ON/OFF type arranged to control the selection movements of the actuator device which from time to time is in communication with the fluid supply; a distributor interposed between the fluid supply and the two actuator devices and displaceable under the control of the first solenoid valve between a first working position in which it puts the fluid supply into communication with the first actuator device and a second working position in which it puts the fluid supply into communication with the second actuator device; a third proportional pressure solenoid valve and a fourth proportional pressure solenoid valve arranged to control the engagement movements of the actuator device which from time to time is in communication with the fluid supply. With such a control system the gear change operation thus requires the intervention of at most four solenoid valves.
Abstract translation:控制系统包括:第一液压操作致动器装置,用于通过选择和接合运动来控制第一组齿轮的接合; 第二液压操作致动器装置,用于通过选择和接合运动来控制第二组齿轮的接合; ON / OFF型的第一电磁阀被布置成将第一或第二致动器装置交替地与压力下的流体供应通信; ON / OFF型的第二电磁阀,其被布置成控制致动器装置的选择运动,所述选择运动不时地与流体供应连通; 插入在流体供应源和两个致动器装置之间的分配器,并且在第一工作位置和第二工作位置之间在第一工作位置之间在第一电磁阀的控制下移动,在第一工作位置中,其将流体供应与第一致动器装置连通, 所述流体供应与所述第二致动器装置连通; 第三比例压力电磁阀和第四比例压力电磁阀,其布置成控制致动器装置的接合运动,其随时间与流体供应连通。 对于这种控制系统,变速操作因此需要至少四个电磁阀的干预。
Abstract:
Described herein is a closed-loop electronic control system for controlling combustion in a diesel engine operating with highly premixed combustion, in which an injection system is designed to obtain at least two injections of fuel per engine cycle, the injections comprising at least one pilot injection and a subsequent main injection. The system is provided with sensors designed for measuring or calculating quantities characteristic of the process of fuel combustion, and a closed-loop control block, which provides a control of the modality of fuel injection based upon the measured or calculated value of the quantities by regulating at least one of the following parameters: the distance in time elapsing between the execution of the pilot injection and the main injection; and the amount of fuel injected by means of the pilot injection.
Abstract:
A fuel injector for an internal-combustion engine comprises an injector body and an injection-control valve, which in turn comprises: an open/close element; an elastic thrust element for pushing the open/close element; and a solenoid actuator, which can be actuated for exerting an action countering the thrust exerted by the elastic element. The solenoid actuator is formed by a monolithic assembly obtained in a mould, in which there is injected, on a core and a coil coupled to one another, a plastic material, which defines, once it has solidified, a body for insulation of the core from the injector body and which forms, once it has solidified, a monolithic assembly with the core and the coil.
Abstract:
The metering servovalve (7) comprises a valve body (8, 30), an open/close element (45) and an electromagnet (15), and is housed in a casing (2) of the injector (1). The electromagnet (15) actuates a mobile armature (16) for a travel defined by a polar surface (19) of the core (18) of the electromagnet (15). This latter is fixed in the casing (2) by means of a threaded ring nut (40), with the interposition of at least one deformable adjustment shim (48). The ring nut (40) is screwed with a pre-set tightening torque on a thread (46) of the casing (2) so as to bring about an elastic deformation of the adjustment shim (48) and to prevent accidental unscrewing of the ring nut (40). The adjustment shim (48) is constituted by a metal ring with a cross section having a shape chosen between L, C, S, Z, and Σ.
Abstract:
The gearbox comprises: a first, inner input shaft which carries a first and a second driving gear wheel associated with odd gears and with a reverse gear; a second, outer input shaft which is disposed coaxially with the first and carries a third and a fourth driving gear wheel associated with even gears; a first output shaft which carries a first driven gear wheel meshing with the first driving gear wheel to form a first gear, a second driven gear wheel meshing with the second driving gear wheel to form a fifth gear and a third driven gear wheel meshing with the fourth driving gear wheel to form a sixth gear; and a second output shaft which carries a fourth driven gear wheel meshing with the first driven gear wheel to form the reverse gear, a fifth driven gear wheel meshing with the second driving gear wheel to form a third gear, a sixth driven gear wheel meshing with the third driving gear wheel to form a second gear and a seventh driven gear wheel meshing with the fourth driving gear wheel to form a fourth gear.
Abstract:
Described herein are a method and a device for determining the relative position of two elements that are mobile with respect to one another, in which connected to a first element is a source of a field of forces and connected to a second element is a meter, designed to measure the field of forces and to supply, instant by instant and as a function of the measurement made, a response identifying the relative position of the first element with respect to the second element at that instant, the meter being provided with at least three field sensors arranged in respective distinct points of the second element, and the response being obtained by comparing with one another the outputs corresponding to that instant.
Abstract:
Provided in a gas-feed system, in particular a system for supplying methane or hydrogen to an internal-combustion engine, is an electronic pressure-reducer or pressure-regulator unit, integrated in which are both a pressure-reducing valve for reducing the pressure of the gas coming from the fuel tank to a value suitable for supplying a distribution manifold or rail and a modulating solenoid valve that functions as modulator of the degree of pressure reduction performed by the pressure-reducing valve. Likewise made in the body of said unit are passages that provide the communications of said valves with one another and of each of said valves with the inlet and the outlet for the gas in said unit. Furthermore, the unit incorporates an electronic control module for controlling the modulating solenoid valve.