Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
  • B60L5/38—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from conductor rails
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
  • B60L5/40—Current collectors for power supply lines of electrically-propelled vehicles for collecting current from lines in slotted conduits
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
  • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
  • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
  • B60L53/14—Conductive energy transfer
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
  • B60M1/00—Power supply lines for contact with collector on vehicle
  • B60M1/02—Details
  • B60M1/10—Arrangements for energising and de-energising power line sections using magnetic actuation by the passing vehicle
  • B60M1/103—Arrangements for energising and de-energising power line sections using magnetic actuation by the passing vehicle by vehicle-borne magnets
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
  • B60M1/00—Power supply lines for contact with collector on vehicle
  • B60M1/30—Power rails
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
  • B60M1/00—Power supply lines for contact with collector on vehicle
  • B60M1/36—Single contact pieces along the line for power supply
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
  • B60M7/00—Power lines or rails specially adapted for electrically-propelled vehicles of special types, e.g. suspension tramway, ropeway, underground railway
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
  • Y02T10/00—Road transport of goods or passengers
  • Y02T10/60—Other road transportation technologies with climate change mitigation effect
  • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
  • Y02T10/00—Road transport of goods or passengers
  • Y02T10/60—Other road transportation technologies with climate change mitigation effect
  • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
  • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
  • Y02T90/10—Technologies relating to charging of electric vehicles
  • Y02T90/12—Electric charging stations
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
  • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
  • Y02T90/10—Technologies relating to charging of electric vehicles
  • Y02T90/14—Plug-in electric vehicles

Definitions

• TITLE Automatic retraction of a current collection device in an electric vehicle
• the present invention relates to a method for automatically retracting a current collection device fitted to an unguided electric vehicle, the collection device being movable relative to the vehicle between a deployed position and a retracted position, the current collection being obtained by contact of the sensing device, in the deployed position, with an electrical supply track of an electrical supply system via the ground for unguided electric vehicle (s), the track being integrated within a 'a traffic lane and comprising a plurality of conductive segments.
• the present invention also relates to a computer program product incorporating software instructions which, when executed by a computer, implement such an automatic retraction method.
• the invention also relates to an unguided electric vehicle, such as an electric truck, comprising a current pickup device, the pickup device being movable relative to the vehicle between a deployed position and a retracted position, the pickup of current being obtained by contact of the capture device, in the deployed position, with an electrical supply track of an electrical supply system via the ground for unguided electric vehicle (s), the track being integrated within a traffic lane and comprising a plurality of conductive segments.
• an unguided electric vehicle such as an electric truck
• a current pickup device the pickup device being movable relative to the vehicle between a deployed position and a retracted position, the pickup of current being obtained by contact of the capture device, in the deployed position, with an electrical supply track of an electrical supply system via the ground for unguided electric vehicle (s), the track being integrated within a traffic lane and comprising a plurality of conductive segments.
• the invention also relates to an assembly consisting of a ground power supply system and such an unguided electric vehicle.
• the field of the invention is that of ground power systems for unguided electric vehicles.
• document FR 1452525 discloses a roadway in which two rows of power supply rails installed in parallel, extending longitudinally in the direction of the roadway.
• a capture device also called a wiper
• the feed rails are subdivided into longitudinal conductive segments.
• a segment is connected to a voltage source through a switch which is controlled as a function of a signal relating to the position of the vehicle to be powered.
• This position signal is generated, during detection, by a magnetic loop integrated into the roadway and circulating along the segment in question, of a signal generated by a transmission device placed on the vehicle, for example a label of the RFID type (for “Radio Frequency Identification”).
• a control device Upon receipt of such a position signal, a control device closes the switch so that the segment under consideration is electrically connected to the voltage source, provided that the vehicle speed meets certain predetermined conditions.
• the aim of the invention is therefore to provide an improvement in the operation of such conduction power supply systems and the corresponding unguided electric vehicles.
• the invention proposes a method for automatically retracting a current collection device, fitted to an unguided electric vehicle, the collection device being movable relative to the vehicle between a deployed position and a retracted position, the current collection being obtained by contact of the collection device, in the deployed position, with an electrical supply track of an electrical supply system from the ground for unguided electric vehicle (s) ( s), the track being integrated within a traffic lane and comprising a plurality of conductive segments, the method being implemented by the unguided electric vehicle, and comprising a retraction of the capture device slaved to the detection of the start of an overtaking / lane change maneuver implemented by the unguided electric vehicle, the start of the overtaking / lane change maneuver being detected when:
• the invention thus makes it possible to automatically protect the current collection device, and thereby the unguided electric vehicle containing it, from deterioration in the event of a lane change and in particular overtaking implemented by the unguided electric vehicle. .
• overtaking ie a change of lane to pass a vehicle on the current lane
• the current collection device such as the electrical supply system from the ground, or even cause a collision
• the driver of the electric vehicle concentrated on the overtaking maneuver to be implemented is humanly able to defer or even to omit to manually raise the capture device, which is solved by the automation of the retraction implemented according to the present invention.
• the ground power system for unguided electric vehicles according to the invention further comprises one or more of the following features:
• the method further comprises transmitting a signal representative of the start of the overtaking / lane change maneuver, to a module of the unguided electric vehicle, dedicated to controlling the power supply of the unguided electric vehicle;
• the method further comprises, following the transmission step, a step of generating and transmitting at least three requests transmitted in parallel by the module dedicated to controlling the electrical supply of the unguided electric vehicle, the at least three requests including:
• the method further comprises receiving by the retraction actuator / deployment of the capture device of the unguided electric vehicle of the retraction request, and the retraction of the capture device to the retracted position;
• the subject of the invention is also a computer program incorporating software instructions which, when executed by a computer, implement a withdrawal process as defined above.
• the subject of the invention is also an unguided electric vehicle comprising a current pickup device, the pickup device being movable relative to the vehicle between a deployed position and a retracted position, the current pickup being obtained by contact of the control device.
• capture in the deployed position, with an electrical supply track of an electrical supply system via the ground for unguided electric vehicle (s), the track being integrated within a traffic and comprising a plurality of conductive segments, the unguided electric vehicle being configured to control a retraction of the capture device following the detection of the start of an overtaking / lane change maneuver implemented by the unguided electric vehicle, the start of the overtaking / lane change maneuver being detected when:
• a lateral displacement of the unguided electric vehicle, beyond a predetermined lateral displacement threshold, with respect to a current axis of displacement is identified.
• a further subject of the invention is an assembly consisting of an electrical supply system from the ground and such an unguided electric vehicle, the electrical supply system from the ground being of the conduction type and comprising at least one electrical supply track integrated within a traffic lane, the track comprising a plurality of conductive segments, and the unguided electric vehicle being able to capture electrical energy from said at least one electrical supply track while said unguided electric vehicle moves on the traffic lane.
• the unguided electric vehicle comprises a transceiver configured to stop transmitting a signal intended for a control device of the electric power supply system from the ground following the detection of the start of a overtaking / lane change maneuver by at least one control module of the sensing device of the unguided electric vehicle, the control device being external to the electric vehicle, and in which the control device of the power supply system, in the absence of signal emitted by the transceiver of the electric vehicle, is configured to stop supplying electrically the conductive segment of the supply track traversed by the unguided electric vehicle.
• Figure 1 is a view schematically showing an unguided electric vehicle traveling on a roadway equipped with the ground power supply system in one embodiment of the invention
• Figure 2 is a side view of the assembly consisting of a ground power supply system and an unguided electric vehicle of Figure 1;
• FIG 3 is a schematic representation of an overtaking / lane change situation during which the automatic retraction process according to the invention is suitable for implementation;
• FIG 4 is a flowchart of an automatic retraction process according to an exemplary embodiment of the invention.
• Figure 1 shows an assembly consisting of a system 10 of electrical power from the ground and an unguided electric vehicle.
• the ground supply system comprises, flush with the surface of the road
• phase conductive track 11 electrically connected either to an electric power source, or to a reference potential Vref, for example 0 V;
• a conductive neutral track 12 electrically connected either to the current return of the vehicle or to a reference potential Vref, for example 0 V;
• a protective conductive track 13 electrically connected to a reference potential Vref, for example 0 V.
• the segments are arranged end to end to form phase track 11.
• the segments are electrically isolated from each other.
• the neutral track 12 is produced using segments identical to those used for the phase track 11.
• the track 12 consists of a plurality of segments having a width of approximately 5 cm and a length of. about 11 m.
• the insulation between the consecutive segments of the neutral track 12 can be of the same nature as that of the phase track 11.
• the level of dielectric strength between segments is not necessarily as high as that between segments of phase track 11.
• the neutral track 12 runs parallel to the phase track 11, on a first side thereof.
• the side edge of phase track 11 and the side edge of neutral track 12, which are facing each other, are spaced a first distance of about 15 cm.
• the protection track 13 is made up of a plurality of metal segments interconnected with one another.
• the protection track 13 is arranged parallel to the phase track 11, on a second side thereof opposite to the first side of the phase track 11 comprising the neutral track 12.
• phase track 11 and the side edge of protection track 13, which are facing each other, are spaced a second distance of about 15 cm.
• the pair of feed tracks consisting of the phase track 11 and the neutral track 12, as well as the protection track 13 are flush with the surface of the road. More specifically, the tracks 11 and 12 protrude slightly above the surface of the road, for example by a height of the order of a few millimeters, in particular equal to 2 mm. Runway 13 is level with the surface of the road.
• the function of the protection track 13 is to constitute, on the second side, a means of collecting electrons from a leakage current coming from the phase conductive track 11.
• the width of the protective track 13 is approximately 1 cm.
• the ground feeding system 10 has a total width of about 50 cm. This total width is chosen to remain less than the center distance of the smallest unguided electric vehicle likely to travel on the road and to use the system 10.
• any current leakage due for example to the presence of a puddle or a film of water on the surface of the road, is collected on the first side by the neutral track 12 and on the second side by the protection track 13.
• This prevents the portion of the road surface range at high potential does not extend laterally beyond the width of the ground feed system 10.
• the total width of the ground feed system 10 less than the center distance of the smallest authorized vehicle to travel on the roadway and suitable for using system 10, it is guaranteed that if a pedestrian is laterally on the first or second side of a segment of the phase 11 track, but beyond either the neutral track 12 or of the protection track 13, the pedestrian will not be electrocuted if this segment is brought to a high potential.
• the unguided electric vehicle 14 corresponding here to a truck (ie heavy goods vehicle), is provided with a collection device 16 (ie friction device), the end of which is in the deployed position as illustrated by the Figures 1 and 2, is suitable for coming into electrical contact with the pair of supply tracks.
• a collection device 16 ie friction device
• the roadway comprises for each segment an antenna 18 corresponding to a magnetic loop integrated into the roadway and circulating along the segment considered.
• Such an antenna 18 is suitable for detecting the presence of a vehicle on or in the immediate vicinity (distance less than 3 m, preferably 1 meter, preferably of the order of ten cm) of the segment with which it is associated. More generally, the antenna 18 is suitable for generating a signal representative of the position of the unguided electric vehicle on the roadway and for transmitting it to a control device 20 (also called a switch), which when the signal received corresponds to the detection of the vehicle on or in the immediate vicinity of the corresponding segment closes the switch so that the segment in question is electrically connected to a voltage source.
• a control device 20 also called a switch
• each control device 20 is connected to a power supply line 22 of its own and whose length D2, for example two kilometers, is greater than that of a segment.
• Each end of the power supply line 22 is connected to a separate equipotential bonding 24 from one end to the other.
• the equipotential links 24 connected respectively to each end of an electrical supply line 22 of a segment considered, are also connected in parallel to the ends of the electrical lines 22 associated with neighboring segments of the segment considered over the distance D2.
• a pair of equipotential links 24 is in particular connected to three separate electrical supply lines each associated with their own control device 20.
• Each equipotential bonding 24 at the end of the electrical section is also connected to a control cabinet 26 for the electrical supply, which is itself connected to the voltage source as such 28.
• FIG. 2 is a side view of the assembly consisting of an electric power supply system from the ground 10 and of an unguided electric vehicle 14 of FIG. 1.
• the unguided electric vehicle 14 runs on the metal segments conductors 30 corresponding to parts of the aforementioned rails 12.
• the antenna 18 of Figure 1 is deployed in the form of a magnetic loop 32 connected by a link 34 to the control device 20.
• the control device 20 comprises a switch (not shown) for connecting the power supply line 22 which is specific to it as shown in Figure 1 to the power line 36 of segment 30.
• the sensing device 16 of the unguided electric vehicle 14 in contact with a segment 30 of the roadway comprises an antenna 38 for radio transmission reception.
• the unguided electric vehicle 14 comprises two front 40 and rear 41 obstacle detectors characterized respectively by a front 42 and rear 44 detection range.
• the unguided electric vehicle 14 also comprises a module 46 dedicated to controlling the power supply to the unguided electric vehicle 14.
• a module 46 is connected to the aforementioned front 40 and rear 41 obstacle detectors and also to a transmitter.
• dedicated receiver 48 on the one hand to communication with the transmitting antenna 38 radio reception of the current sensing device 16, and on the other hand to the generation of the position signal of the unguided electric vehicle intended for each antenna 18 located within each segment.
• the module 46 dedicated to controlling the electrical supply to the vehicle is connected to a control module 49 of the capture device, configured to detect the start of a lane change / overtaking maneuver implemented by the vehicle. unguided electric vehicle 14.
• the control module 49 of the capture device is also connected to an actuator 50 for retraction / deployment of the capture device 16, the actuator 50 allowing the retraction / deployment of the capture device 16 piloted by the control module 49 of the capture device.
• capture the automatic retraction being slaved to the detection, by the control module 49 of the capture device, of the start of an overtaking / lane change maneuver implemented by the unguided electric vehicle 14.
• the control module 49 of the capture device is produced in the form of a computer integrating software, or a software brick that can be executed by a processor of a processing unit (not shown) of the vehicle. unguided electrical 14.
• the processing unit further comprises a memory (not shown) capable of storing such detection software and such software for controlling the retraction / deployment of the capture device 16 to allow automatic retraction of the device. capture (ie without human intervention).
• control module 49 of the capture device is produced in the form of a programmable logic component, such as an FPGA (standing for Field Programmable GateArra ⁇ ), or in the form of a dedicated integrated circuit, such as as an ASIC (from the English Application Specifies Integrated Circuit).
• a programmable logic component such as an FPGA (standing for Field Programmable GateArra ⁇ )
• a dedicated integrated circuit such as as an ASIC (from the English Application Specifies Integrated Circuit).
• the computer readable medium is, for example, a medium capable of storing electronic instructions and of being coupled to a bus of a computer system.
• the readable medium is an optical disc, a magneto-optical disc, a ROM memory, a RAM memory, any type of non-volatile memory (for example EPROM, EEPROM, FLASH, NVRAM), a magnetic card or an optical card.
• the control module 49 of the capture device configured to detect the start of an overtaking / lane change maneuver implemented by the unguided electric vehicle is according to a first variant connected to an element (not shown). ) of the dashboard of the unguided electric vehicle 14 suitable for allowing manual activation of a flashing light of the unguided electric vehicle 14 (ie one of the right or left flashing lights of the unguided electric vehicle 14).
• the control module 49 of the capture device is directly integrated within a control unit (not shown) of the unguided electric vehicle 14.
• the control module 49 of the capture device is connected, or even integrated, to a system (not shown) for lateral positioning of the capture device 16 and / or of the vehicle, such a lateral positioning system being suitable for determining in real time the lateral displacement of the unguided electric vehicle 14 and for comparing it with a predetermined lateral displacement threshold, with respect to a current displacement axis of the electric vehicle unguided 14.
• the control module 49 of the capture device is also configured to transmit to the module 46 dedicated to the control of the electric power supply of the unguided electric vehicle 14 a signal representative of the start of the overrun / change maneuver. way.
• the module 46 On receipt of such a signal representative of the start of the overtaking / lane change maneuver, the module 46 is also configured to generate and transmit in parallel at least three distinct requests.
• a first request consisting in requesting, from the control unit (not shown) of the unguided electric vehicle 14, a change in the power supply mode of the unguided electric vehicle 14 in order to suspend the electrical supply from the ground and replace it by an internal power supply, for example by activating the discharge of the electric battery of the unguided electric vehicle 14.
• a second request consists in requesting, from the transceiver 48, the stopping of the radio transmission informing, via the antennas 18 of each segment of the electric power supply system on the ground, of the position of the unguided electric vehicle. on the power supply track.
• the stopping of such a signal is detectable by the control device 20 of the ground power supply system associated with the segment being traveled by the unguided electric vehicle 14 which in response reverses the position of the switch qu. 'it includes in order to stop supplying electric power to the segment in question.
• the control device 20 of the ground power supply system associated with the segment being traveled by the unguided electric vehicle 14 which in response reverses the position of the switch qu. 'it includes in order to stop supplying electric power to the segment in question.
• a third request is to request, from the actuator 50, the order for the retraction of the capture device.
• the retraction / deployment actuator 50 Upon receipt of this third request, the retraction / deployment actuator 50 is able to raise the capture device 16 to the retracted position within the unguided electric vehicle 14.
• Figure 3 illustrates an overtaking / lane change situation. More specifically, the unguided electric vehicle 14A according to the present invention travels on the road R comprising two traffic lanes V1 and V2, the V2 lane being powered by the electrical supply system from the ground.
• the unguided electric vehicle 14A travels on track V2 along a current displacement axis A D while another vehicle 14B precedes it on this same track V2.
• the driver of the unguided electric vehicle 14A being powered by the ground power supply system, considers, for example using the detector obstacle 40 associated with the front detection range 42, that the distance separating it from the vehicle 14B decreases, reflecting a travel speed of the vehicle 14B lower than its own current speed, and furthermore verifies that the track V1 is free.
• the driver activates, according to a first variant, directly manually one of his flashing lights 52, in this case the left flashing light via the element of his aforementioned dashboard.
• the driver initiates the overtaking maneuver without activating flashing lights and the unguided electric vehicle 14 then moves away from the axis A D of movement on track V2.
• the lateral positioning system of the capture device 16 and / or of the vehicle is able to detect such lateral displacement and to generate an alert returned to the driver by a man-machine interface of the non-electric vehicle. guide 14 dedicated to the electrical supply from the ground.
• Such lateral displacement when it exceeds a predetermined lateral displacement threshold is suitable for being identified by the control module 49 of the capture device according to the present invention, directly connected, or even integrated within the positioning system. side not shown.
• the actuator 50 for retraction / deployment of the capture device 16 is configured to maintain the retraction as long as the flashing light 52 remains activated, and / or as long as the radio transmission stop informing the electric power supply system from the ground of the position of the unguided electric vehicle on the power supply track, by the radio transceiver of the unguided electric vehicle, remains activated.
• FIG. 4 shows an example of the flowchart of an automatic retraction method 54 according to the invention.
• the control module 49 of the capture device detects the start of an overtaking / lane change maneuver implemented by the unguided electric vehicle 14 by detection of the activation of a flashing light (ie a flashing light).
• a flashing light ie a flashing light
• the module 49 for controlling the capture device preferably integrated according to this first variant within a control unit of the unguided electric vehicle 14 (not shown), transmits, to the module 46 a signal representative of the start of the overtaking / lane change maneuver.
• a signal corresponds for example to a “flashing on” message.
• module 46 generates and transmits three requests in parallel corresponding to three sub-steps 62, 64, 68 suitable for being implemented in parallel.
• Sub-step 62 consists in generating and transmitting a first request to a control unit (not shown) of the unguided electric vehicle 14, to request a change in the power supply mode of the unguided electric vehicle 14 to suspend the electrical supply from the ground and replace it with an internal electrical supply, for example by activating the discharge of the electric battery of the unguided electric vehicle 14 to continue traction of the unguided electric vehicle 14.
• the sub-step 64 consists in generating and transmitting a second request consisting in requesting, from the transceiver 48, the stopping of the informing radio transmission, via the antennas 18 of each segment of the system. power supply to the ground, the position of the unguided electric vehicle on the power supply track
• the sub-step 68 consists in generating and transmitting a third request consisting in requesting from the actuator 50 the retraction / deployment of the capture device 16, the retraction of the capture device.
• a step 70 in the absence of a radio signal transmitted by the transceiver 48 of the unguided electric vehicle 14, the control device 20 of the electrical supply system from the ground stops supplying the conductive segment with 750V. on which the unguided electric vehicle 14 is positioned to connect it to a non-dangerous potential, for example that of the current return which is substantially 0V, allowing a pedestrian to move without danger on the segment considered, for example if the driver get out of his vehicle and put his feet on the ground.
• a non-dangerous potential for example that of the current return which is substantially 0V
• the actuator 50 for retracting / deploying the capture device 16 retracts the capture device 16.
• step 74 the capture device 16 is raised to the retracted position during the overtaking / lane change maneuver of the unguided electric vehicle 14.
• step 76 the overtaking maneuver of the unguided electric vehicle 14 is completed and the unguided electric vehicle 14 is back on track V2 powered by the electrical supply system from the ground or the lane change maneuver. is completed and the vehicle is on another lane supplied by the ground power supply system, the flashing light 52 is then inactive.
• the control device 20 of the ground power supply system transmits via the antenna loop 18 of rail 12 a radio signal suitable for being received by the transceiver 48.
• the vehicle control unit (not shown) requires the transceiver 48 to re-transmit the position signal from the unguided electric vehicle 14 again circulating on track V2 powered by the electrical supply system from the ground.
• a next step 78 the collection device 16 is deployed to the deployed position of current collection in contact with the pair of supply rails.
• step 80 when the speed of the unguided electric vehicle 14 satisfies certain predetermined conditions, in the absence of an obstacle detected by the obstacle detectors 40 and 41, and if the control device 20 of the system d The ground power supply continuously receives the position signal of the unguided electric vehicle 14 transmitted by the transceiver 48, the controller 20 again supplies 750V to the conductive segment on which the unguided electric vehicle 14 is positioned.
• the steps 56, 58, 60 prior to the step 70 are respectively replaced by the steps 82, 84 and 88 described below. and implemented in particular, as an alternative, or independently of the detection of the activation of a flashing light by the driver of the unguided electric vehicle 14.
• control module 49 of the capture device detects the start of an overtaking / lane change maneuver implemented by the unguided electric vehicle 14 by identifying the movement. lateral movement of the unguided electric vehicle beyond a predetermined lateral displacement threshold with respect to the current displacement axis AD.
• step 82 is followed by step 84 where the lateral positioning system of the vehicle / capture device 16 detects such lateral displacement and generates an alert returned to the driver by a man-machine interface of the electric vehicle. unguided 14 dedicated to the electrical supply from the ground.
• step 86 when the lateral displacement of the unguided electric vehicle 14 exceeds a predetermined threshold, the module 46 generates and transmits three requests in parallel and comprises, to do this, three sub-steps 88, 90, 92, specific to be implemented in parallel and respectively identical to the previously mentioned sub-steps 62, 64, 68.
• the automatic retraction of the current collection device 16 implemented according to the present invention contributes to the safety of the assembly consisting of an electrical supply system 10 from the ground and an unguided electric vehicle, avoiding a deterioration of the capture device 16 and of the unguided electric vehicle 14 such as rails 12, while relieving the driver who does not have to worry about the management of the capture device 16 in the face of a situation of overtaking / changing lane .

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Power Engineering (AREA)
• Transportation (AREA)
• Traffic Control Systems (AREA)
• Electric Propulsion And Braking For Vehicles (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=69700043

Family Applications (1)

Country Status (3)

Family Cites Families (4)

• 2019
  • 2019-11-08 FR FR1912545A patent/FR3102954B1/fr active Active
• 2020
  • 2020-11-04 EP EP20797802.4A patent/EP4054878A1/de active Pending
  • 2020-11-04 WO PCT/EP2020/080945 patent/WO2021089612A1/fr not_active Ceased

Also Published As

Similar Documents

Legal Events