142results about "Rail devices" patented technology

A fleet and trolley system, a first method of charging a work machine, and a second method of charging a fleet of work machines are disclosed. The fleet and trolley system includes a trolley network, at least one zero-emission work machine, and a controller. The controller manages a scheduled usage of the trolley network, a power draw, and a distribution of the power draw by the work machine. The first method includes monitoring states of the work machine, scheduling a usage of the trolley network, and supplying electric power to the work machine. The second method includes monitoring states of a fleet, monitoring states of the trolley network, scheduling usages of the trolley network, and supplying electric power to one or more machines of the fleet. Advantageously, the disclosed system and methods may improve an efficiency, productivity, and longevity of a fleet of zero-emission work machines.

An electric rail infrastructure for a work machine is disclosed. The electric rail infrastructure comprises: a plurality of powered rails; a plurality of energy interfaces positioned throughout the plurality of powered rails; a power module connected to the plurality of energy interfaces for providing electrical power to the plurality of powered rails; a plurality of electric clamps positioned on each end of the powered rails, each electric clamp having at least one resistor.

A modular structure supports elevated rail segments for delivering electrical power to a moving work machine, such as a hauler at a mining site. Opposite ends of a roadside barrier contain complementary tubular couplers arranged vertically. A lower end of a dielectric post positioned in one of the tubular couplers has opposing dielectric plates at an upper end. A top edge of each plate has a creepage concavity between a pair of rail recesses. Another dielectric post of similar configuration is positioned in the other of the tubular couplers. Holes within the couplers and the posts ensure alignment of respective rail recesses in which conductive rails are placed. Dielectric inserts frictionally lock the rails into the rail recesses.

A modular structure supports elevated rail segments for delivering electrical power to a moving work machine, such as a hauler at a mining site. Opposite ends of a roadside barrier contain complementary tubular couplers arranged vertically. A lower end of a dielectric post positioned in one of the tubular couplers has opposing dielectric plates at an upper end. A top edge of each plate has a creepage concavity between a pair of rail recesses. Another dielectric post of similar configuration is positioned in the other of the tubular couplers. Holes within the couplers and the posts ensure alignment of respective rail recesses in which conductive rails are placed. Dielectric inserts frictionally lock the rails into the rail recesses.

To provide a contactless electric power transmission system capable of performing appropriate power transmission by independent communication control and power control on the power reception side.SOLUTION: A contactless electric power transmission system 1 comprises an electric power reception device 4 and a controller 17. The electric power reception device 4 receives electric power transmitted contactlessly between itself and an electric power transmission device 2. In a coupling section in which a degree of coupling between a primary side coil of the electric power transmission device 2 and a secondary side coil of the electric power reception device 4 is equal to or larger than a predetermined degree, the controller 17 sets communication sections in which the degree of coupling is relatively small and electric power transmission sections in which the degree of coupling is relatively large. When the secondary side coil exists in the first communication section of the coupling section, the controller 17 transmits information on electric power transmission in the electric power transmission section from the electric power reception device 4 to the electric power transmission device 2 by using communication between the electric power transmission device 2 and the electric power reception device 4.SELECTED DRAWING: Figure 1

This power supply device is provided with: a power supply line that is disposed along a movement path of a plurality of moving bodies and that supplies power to the plurality of moving bodies; a power supply device connected to the power supply line and supplying power to the power supply line; and a control system that controls the power supply device. A control system is provided with: a moving body number information acquisition unit that acquires moving body number information indicating the number of moving bodies in a power supply region, which is a region in which a power supply line is disposed in a movement path; and a control execution unit that executes supply power variable control for reducing power supplied from the power supply device to the power supply line in accordance with a decrease in the number of moving bodies in the power supply area on the basis of the number of moving bodies information. Power supplied from the power supply device to the power supply line is increased in response to an increase in the number of moving bodies in the power supply area.

To make compatible safety and efficiency in restarting a power transmission process after power failure by making clear a restarting method of a road-side power supply apparatus after recovery from a disaster in a case where the disaster occurs.SOLUTION: A system for non-contact power supply during traveling supplies power in a non-contact manner from a power transmission device in a road-side power supply apparatus to a traveling vehicle on which a vehicle-side power reception apparatus is mounted. The road-side power supply apparatus comprises: a first communication unit capable of executing a wide-range radio communication with the vehicle-side power reception apparatus; a second communication unit capable of executing a narrow-range radio communication with the vehicle-side power reception apparatus; a power transmission control section which controls the power transmission device; and an abnormality determination section capable of determining occurrence of an abnormality. When a disaster is determined, the abnormality determination section turns on a disaster flag and notifies the power transmission control section of it. The power transmission control section stops a power supply operation by the transmission device in a case where it is determined that the disaster flag is turned on, and causes the road-side power supply apparatus to execute a predetermined operation in a case where it is determined that the disaster flag is turned off.SELECTED DRAWING: Figure 9

In a wireless power transfer apparatus, a characteristic adjuster has a frequency characteristic that causes, in a power transfer mode from at least one power transmission unit to a power receiving apparatus, a resonant power transmission circuit to have a resonance frequency that substantially matches an operating frequency. The reactance of a power transmission coil has a reference value in the power transfer mode. The frequency characteristic of the characteristic adjuster causes, in a power non-transfer mode from the at least one power transmission unit to the power receiving apparatus, a reactance of a power transmission coil to become an adjusted value that is higher than the reference value.

The power receiving electrode unit (300) is provided on the movable body (1002) and capacitively coupled with the power transmitting electrode unit (200). The power transmitting electrode unit (200) has a power transmitting electrode tooth portion (220) and a power transmitting electrode connection portion (230). The power receiving electrode unit (200) has a power receiving electrode tooth portion (220) and a power receiving electrode connection portion (230). The power transmitting electrode tooth portion (220) and the power receiving electrode connection portion (230) are connected to the power transmitting electrode tooth portion (230). The power transmitting electrode tooth portion (220) and the power receiving electrode tooth portion (320) face each other at a distance from each other, a first capacitance and a second capacitance are formed in the facing region of the power transmitting electrode tooth portion (220) and the power receiving electrode portion (320), a third capacitance and a fourth capacitance are formed in the facing region of the end of the power transmitting electrode tooth portion (220) and the power receiving electrode connecting portion (230) and a facing region of the end of the power receiving electrode tooth portion (320) and the power transmitting electrode connecting portion (230), and a dielectric is provided on the surfaces forming the first to fourth capacitances.

A control method and system includes determining a resonant frequency of a vehicle system operably coupled with an external power source providing voltage and current to the vehicle system. A first filter extracts a phase or frequency component from the voltage provided by the external power source to produce a stable voltage component. A second filter extracts a phase or frequency component from the current provided by the external power source to produce a stable current component. The stable voltage component is out of phase with the stable current component. A control input for a converter device of the vehicle system is determined based on the stable voltage component, the stable current component, and the resonant frequency. The stable voltage component, the stable current component, and the control input are communicated with the converter device to change the resonant frequency of the vehicle system.

A contactless power feeding facility includes a coupling unit electromagnetically coupling a target feeder line and an adjacent feeder line. A target power supply apparatus includes: a phase detector detecting the induced current phase which is the phase of an induced current flowing through the target feeder line by the electromagnetic induction via the coupling unit while an alternating current is supplied to the adjacent feeder line by an adjacent power supply apparatus; an alternating-current generator generating the alternating current to be supplied to the target feeder line; and a phase controller controlling the alternating-current generator such that the phase of the alternating current to be supplied to the target feeder approaches the induced current phase detected by the phase detector.

To provide a wireless power supply system 1 which satisfactorily supplies AC power output from an AC power supply 4 to an electric load 50 when a movable body 3 moves.SOLUTION: The wireless power feeding system 1 includes the matching circuit 30 disposed between the coupler 60 and the electric load 50, and the matching circuit 40 disposed between the AC power supply 4 and the coupler 60. The matching circuit 30 has an impedance that cancels the reactance Xl in the impedance Zl. The matching circuit 40 operates such that the impedance Zin on the matching circuit 40 side with respect to the AC power supply 4 is proportional to the resistance value R of the electric load 50. By changing the value of the current flowing from the AC power supply 4 to the electric load 50 in accordance with the change in the resistance value R, the power output from the AC power supply 4 is supplied to the electric load 50.SELECTED DRAWING: Figure 1

To bury, near a road surface of a travel route, a power supply device supplying power in a non-contact manner to a power receiving device provided in a movable body moving on the travel route, while ensuring long-term commonality.SOLUTION: A burying structure for a power supply device buries, in a travel route, a power supply device supplying power in a non-contact manner to a power receiving device provided in a movable body moving on the travel route. The power supply device has a protective case that stores a resonance capacitor connected in series to a power supply coil, and the protective case is formed to have a length in a transverse direction of the travel route shorter than a coil case that stores the power supply coil, the protective case being buried in the travel route.SELECTED DRAWING: Figure 1

The present invention relates to an inductive charging device (1) for an inductive vehicle charging system for charging batteries of battery electric vehicles, in particular a stationary and / or inductive inductive charging device. The inductive charging device (1) comprises at least one coil (2) for generating an alternating electromagnetic field, which extends in a plane extending perpendicular to a height direction (H) of the inductive charging device (1) and is formed with an electrical conductor path configured as strands (3). The inductive charging device (1) further comprises a coil support structure (4) made of plastic in which the strands (3) are at least partially embedded and for positioning the strands (3). The inductive charging device (1) further comprises a support structure (5) having a plurality of support elements (6) each extending along the height direction (H), which are spaced apart from one another in a longitudinal direction (L) perpendicular to the height direction (H) and which is supported in the height direction by the coil support structure (4). The inductive charging device (1) further comprises at least two, preferably a plurality of, magnetic field conductive core plates (7) made of soft magnetic material arranged at a distance from each other and extending along a longitudinal direction (L), wherein each core plate (7) is supported on at least one support element (6).

The present application relates to and is suitable for the track return current power supply system of the metro train with direct current power supply, the scheme in the application provides a method for reducing the stray current generated by the metro running rail power return current, a connection branch formed by parallel inductance, super capacitor, IGBT switch, contactor and the like is adopted, and the conduction and flow direction of the intelligent control current is used to effectively filter the harmonic components of the return current, which can effectively reduce the leakage of the stray current harmonic components generated by the harmonic of the inverter switch circuit of the train to the outside of the running track itself, and prevent the electrochemical corrosion from harming other facilities and equipment.

To provide a control device capable of improving power transmission efficiency even when the power transmission efficiency is reduced when a vehicle deviates from a power supply lane at night.SOLUTION: A vehicle ECU330 is configured to: determine whether or not a power transmission efficiency is reduced due to lateral deviation of the vehicles 3 from a power supply lane at night. When the power transmission efficiency is reduced, a vehicle AFS380 is activated capable of automatically changing a range of light to be emitted in a traveling direction of the vehicles 3 in accordance with a steering operation.SELECTED DRAWING: Figure 2

A tire / wheel assembly includes a wheel including a disk and a rim, the wheel having a power reception device attached to an inner peripheral surface of the rim to receive electric power supplied wirelessly from farther outward in a radial direction of the wheel than the rim, and a tire attached so as to cover an outer peripheral surface of the wheel and including a pair of bead portions. Each bead portion in the pair of bead portions includes a bead core and a bead filler, and 0.1 ≤ BFW / BDW ≤ 0.6, where BFW is a width in a tire width direction at a central position of the bead filler in a tire radial direction, and BDW is a maximum width in the tire width direction of the bead core.

To provide a contactless charging system that can perform contactless charging without using wireless communication. [Solution] The contactless charging system of the present invention is a contactless charging system that charges a power storage device by non-contacting the transmission of power from the primary transmission coil of a power transmission device to the primary receiving coil of a power receiving device, and comprises a protective cover that is openable and closable on the power receiving device, an actuator that is electrically connected to the primary receiving coil and opens and closes the protective cover, a secondary transmission coil provided on the protective cover and electrically connected to the primary receiving coil so as to be movable together with the protective cover, a secondary receiving coil provided on the power transmission device so as to face the secondary transmission coil when the opening of the protective cover is complete, and a current sensor that detects the current flowing through the secondary receiving coil. The current sensor detects the current flowing through the secondary receiving coil, which has been non-contactually received from the secondary transmission coil, and detects that the opening of the protective cover is complete.

To provide a technique capable of reducing interference between power transmission to a main battery and power transmission to an auxiliary battery.SOLUTION: A power transmission system in which power is transmitted from a power transmission-side device to a power reception-side device, the power transmission-side device including a power transmission-side coil, the power reception-side device including a power reception-side coil, an AC / DC converter, a first battery, a transformer, and a second battery, the transformer including a primary-side winding connected to the AC / DC converter via a filter and a secondary-side winding connected to the second battery, the power transmission system comprising: Operating the AC / DC converter at a first operation frequency not included in a frequency band of a filter in a first mode in which power is transmitted from the power reception-side coil to the first battery, and operating the AC / DC converter at a second operation frequency included in the frequency band in a second mode in which power is transmitted from the first battery to the second battery.SELECTED DRAWING: Figure 2

An overhead line support structure 10 suitable for an overhead line equipment (OLE) installation (figure 1, 100). The overhead line support structure 10 comprises a support mast 20 having a first end

To provide a coil component in which the decrease of coil performance due to an influence of a member around a coil can be suppressed.SOLUTION: A coil component 10A includes a coil 11 and a case 20 with a side wall part 23 existing at an outer periphery of the coil 11. The side wall part 23 includes two kinds of materials. One material of the two kinds of materials is conductive and the other material is magnetic. The one material may be metal and the other material may be ferrite.SELECTED DRAWING: Figure 3

A wireless power supply system includes: an AC power source apparatus; a plurality of power transmission apparatuses connected in parallel to the AC power source apparatus; a power receiving apparatus configured to be supplied with power from the power transmission apparatuses in a wireless manner; and a power source voltage controller configured to control an output voltage of the AC power source apparatus, in which in a case where an output power of the AC power source apparatus exceeds a rated output power, the power source voltage controller is configured to perform a primary-side power reduction control to lower the output voltage so that the output power falls below a preset allowable output power.

To improve conveyance efficiency of a battery locomotive.SOLUTION: A pantograph PG is provided on a battery locomotive BL traveling in an excavation pit DP constructed by a shield machine S, and a power supply trolley wire PW for charging a battery B of the battery locomotive BL through the pantograph PG is provided on a subsequent carriage FT towed to the rear of the shield machine S.SELECTED DRAWING: Figure 1

A wireless power transfer system 1 includes a power transmission device 2 and a power reception device 3. The power transmission device 2 is a power transmission device 2 installed in a road 4, is provided with a power transmission coil 21 that transmits power wirelessly, and is configured such that when installed in the road 4, the normal line of a coil plane of the power transmission coil 21 is inclined with respect to the normal line of the road surface of the road 4 in a lateral cross section of the road 4. The power reception device 3 is provided with a power reception coil 31 that receives power wirelessly, and at least a portion of the power reception coil 31 is housed in the wheel 6 of the moving body 5.

Provided are a non-contact power supply method, a non-contact power supply system, a non-contact power supply device, a non-contact power reception device, a method for determining the position of a moving body, a system for determining the position of a moving body, and a moving body. A power supply device (2) provided outside a moving body is provided with: a power supply coil (22); and at least one power supply-side communication device (24) capable of communicating in accordance with the UWB wireless communication standard. A power receiving device (3) mounted on a moving body is provided with: a power receiving coil (32); and at least one power-receiving-side communication device (34) capable of communicating with the power-feeding-side communication device (24) in accordance with the UWB wireless communication standard. The control device (6) specifies a positional relationship between the power supply coil (22) and the power reception coil (32) on the basis of the communication, and performs, on the basis of the positional relationship, a process pertaining to non-contact power supply performed from the power supply coil (22) to the power reception coil (32) by means of an electromagnetic field.

A contactless power feeding system includes a power supply line to supply AC power to a power receiver on a mobile body in a non-contact manner, and a power supply boards to generate AC power and supply the AC power to the power supply line. Each of the power supply boards performs PWM control to control the AC power to be supplied to the power supply line, by generating a control pulse to control generation of the AC power such that a timing of a center of an ON pulse of the control pulse has a same timing as a timing defined by a reference clock, and by changing a duration of the ON pulse.