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
  • B60L5/40—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 Process for automatic retraction of a current collection device from a ground power supply system
• 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 (14) 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), the track being integrated within a traffic lane and comprising a plurality of conductive segments.
• an unguided electric vehicle such as an electric truck
• 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, extend longitudinally in the direction of the roadway.
• the unguided electric vehicle is fitted with a capture device (also called a wiper), the end of which is suitable for coming into electrical contact with the supply rails.
• 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 position. retracted, 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 via the ground for unguided electric vehicle (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 an automatic retraction of the capture device slaved to the detection of '' a risk of traffic on the traffic lane, by detection of the activation of a distress signal from the unguided electric vehicle, and / or by detection of severe braking greater than a predetermined braking threshold implemented by the unguided electric vehicle.
• 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 dangerous traffic
• a dangerous traffic situation i.e. the presence of a risk of traffic on the traffic lane
• a dangerous traffic situation is likely to cause slowdowns, sudden changes of direction or collisions.
• These situations are likely to damage the capture device, such as the ground power supply system, if the capture device remains deployed and in contact with the ground power system.
• the driver of the electric vehicle surprised by such an unpredictable dangerous traffic situation is humanly apt to defer or even to omit to manually raise the capture device, which is resolved by the automation of the retraction implemented according to the present invention. invention.
• the ground power system for unguided electric vehicles according to the invention further comprises one or more of the following features:
• an automatic emergency braking module capable of activating both emergency braking and the distress signal in the presence of an obstacle
• the method further comprises transmitting a signal representative of the presence of the risk of traffic, to a module, of the unguided electric vehicle, dedicated to the control and control of the electrical 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 the control command of the electric power supply of the unguided electric vehicle, the at least three requests including:
• the method further comprises the reception by the control module of the capture device of the withdrawal 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 from the ground for unguided electric vehicle (s), the supply track being integrated within a traffic lane and comprising a plurality of conductive segments, the unguided electric vehicle being configured to implement an automatic retraction of the capture device following the detection of a risk of traffic on the traffic lane, by detection of the 'activation of a distress signal from the unguided electric vehicle, and / or by detection of a braking intensity greater than a predetermined braking threshold implemented by r the unguided electric vehicle.
• the subject of the invention is also an assembly consisting of an electrical supply system from the ground and such an unguided electric vehicle.
• the unguided electric vehicle comprises a transceiver configured to stop transmitting a signal intended for a control device of the electrical supply system via the ground in the presence of a risk of traffic on the ground.
• the traffic lane detected by at least one module dedicated to controlling the power supply of the unguided electric vehicle, the control device being external to the electric vehicle, and in which the control device of the electric power supply system by the ground, in the absence of a 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 a dangerous traffic situation during which the automatic withdrawal 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 may be of the same nature as that of the phase track 11. However, although a segmentation is necessary for mechanical reasons (expansion), 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 precisely, the tracks 11 and 12 protrude slightly above the surface 8 of the roadway, 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 brought to a high potential from extending laterally beyond the width of the power supply system by the ground 10.
• the ground 10 By choosing the total width of the power supply system the ground 10 less than the center distance of the smallest vehicle authorized to circulate on the roadway and suitable for using the system 10, it is ensured that if a pedestrian is laterally on the first or the second side of a segment of the track of phase 11, but beyond either the neutral track 12 or 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 12.
• 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 connected in particular to three separate power supply lines, each associated with their own control device 20.
• Each equipotential bonding 24 is also connected to a control cabinet 26 for the power supply itself connected to the voltage source as such 28.
• FIG. 2 is a side view of the assembly consisting of a system 10 for electric power supply from the ground and of an unguided electric vehicle 14 of FIG. 1.
• the unguided electric vehicle 14 travels above the feed track integrating the conductive metal segments 30 corresponding to parts of the aforementioned feed rails / tracks (11, 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 of the unguided electric vehicle 14.
• a dedicated module 46 is connected to the aforementioned front 40 and rear 41 obstacle detectors and also to a transmitter.
• -receiver 48 dedicated, on the one hand to communication with the radio transmission antenna 38 of the device 6 of current collection, and on the other hand to the generation of the position signal of the unguided electric vehicle intended for each antenna 18 located around each segment.
• the module 46 dedicated to the control command of the vehicle's electrical supply manages the risks of traffic on the traffic lane, by detecting the activation of a distress signal from the vehicle, and / or by detecting braking. intensity greater than a predetermined braking threshold implemented by the unguided electric vehicle.
• This module 46 dedicated to the control command of the electrical supply from the ground is connected to a module 49 for controlling the current collection device 16.
• the control module 49 is also connected to an actuator 50 which manages the retraction / deployment of the capture device 16.
• the actuator 50 for controlling the retraction / deployment of the capture device 16 is controlled by the control module 49. capture device 16. If a risk of traffic is detected on the traffic lane, the module 46 dedicated to controlling the electrical supply from the ground will manage the automatic retraction of the capture device 16 via the module 49 of control of capture device 16 and actuator 50.
• the control of the retraction / deployment of the capture device 16 is managed by the module 46 dedicated to the control command of the electrical supply from the ground and the module 49 for the control of the capture device via their software, or their software brick that can be executed by a processor of a processing unit.
• the processing unit also 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 capture device (ie without human intervention).
• the automatic retraction of the capture device can be managed by the module 46 dedicated to the control command of the electrical supply from the ground and the module 49 for the control of the capture device via programmable logic components, such as FPGA (of the Field Programmable Gâte Array), or in the form of a dedicated integrated circuit, such as an ASIC (English Application Specifies Integrated Circuit).
• programmable logic components such as FPGA (of the Field Programmable Gâte Array), or in the form of a dedicated integrated circuit, such as an ASIC (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 module 46 dedicated to the control command of the electric power supply of the vehicle is configured to detect a risk of traffic when, according to a first variant, a button (not shown) on the dashboard of the unguided electric vehicle. 14 suitable for allowing manual activation of the hazard warning lights representative of a distress signal from the unguided electric vehicle 14 is activated.
• the module 46 dedicated to controlling the electrical supply from the ground is directly connected to the brake pedal (not shown) and is configured to detect a risk of circulation when a force exerted on the pedal is greater than a certain predetermined threshold.
• the module 46 dedicated to the control and command of the electrical supply from the ground is directly connected to an automatic emergency braking module (not shown) (ADAS for Automatic Emergency Braking System) and is configured to detect a risk of traffic when the automatic emergency braking module activates such emergency braking. If there is a risk of traffic, the module 46 dedicated to the control of electrical power supply via the ground is also configured to generate and transmit in parallel at least three distinct requests.
• an automatic emergency braking module not shown
• ADAS Automatic Emergency Braking System
• a first request consisting in requesting, from a 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 consists in requesting, from the actuator 50, the retraction of the capture device via the control module 49 of the capture device of the unguided electric vehicle 14.
• the actuator 50 of the capture device 16 Upon receipt of this third request, the actuator 50 of the capture device 16 is able to lift the capture device 16 to the retracted position within the unguided electric vehicle 14.
• Figure 3 illustrates a dangerous traffic 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 according to the present invention travels on the track V2 while another vehicle 52, for example an automobile, passes it on the passing lane V1.
• the driver of the unguided electric vehicle 14A being powered by the ground power supply system, considers, for example using the front obstacle detector 40 associated with the front detection range 42, that the distance separating it from the heavy goods vehicle 14B is less than the safety distance, and in the presence of this dangerous situation causing a slowing down, activates, according to a first variant, directly manually its hazard lights 54 (representative of a distress signal) via the button of its aforementioned dashboard, or according to a second variant implements a braking beyond a predetermined threshold suitable for activating the hazard lights, and / or for being directly detected by the module 46.
• the automatic emergency braking module of the unguided electric vehicle 14A automatically detects such a risk and activates both emergency braking the intensity of which is greater than the predetermined braking threshold and the hazard warning lights. .
• the capture device control module 49 is configured to maintain the retraction of the capture device 16 as long as the hazard lights 54 remain activated, or for a predetermined time interval when the retraction of the sensor device.
• sensing device 16 is slaved to the detection of an intensity braking greater than a predetermined braking threshold implemented by the unguided electric vehicle, such braking remaining independent of the activation / deactivation of the hazard lights.
• FIG. 4 shows an example of the flowchart of an automatic retraction method 56 according to the invention.
• the module 46 dedicated to controlling the electrical supply from the ground detects a dangerous situation (ie a risk of traffic) according to for example three possible detection variants constituting sub-steps , to know :
• a sub-step 60 during which it is detected by the module 46, for example integrated according to a first variant to a control unit (not shown) of the vehicle, by pressing a button on the dashboard dedicated to the traffic lights. distress, that the driver of the unguided electric vehicle 14A, detecting the imminent presence of a potentially dangerous situation, manually activates the hazard lights of the unguided electric vehicle 14 directly, or as a variant,
• a sub-step 62 during which it is detected by the module 46, in particular in this case directly connected to the brake pedal (not shown), that the driver brakes abruptly beyond a predetermined threshold, such a detection being carried out by:
• a sub-step 64 during which the automatic activation (i.e. without human intervention) of the hazard warning lights, via the ADAS emergency braking module is detected by the module 46.
• the module 46 transmits a signal representative of the presence of the traffic risk to a man-machine interface of the unguided electric vehicle 14.
• Such a step 66 comprises two alternative or complementary sub-steps 68 and 70 (in this case two complementary signals are transmitted) one on the other.
• the signal transmitted by the module 46 dedicated to the control command of the electric power supply of the vehicle indicates that the hazard lights are activated while according to the sub-step 70, the signal transmitted is representative of the overshoot of the predetermined braking threshold.
• the module 46 dedicated to the control command of the electric power supply of the unguided electric vehicle 14 generates and transmits three requests in parallel and comprises, to do this, three sub-steps 76, 78, 80 suitable for being put into operation. works in parallel.
• Sub-step 76 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 78 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 80 consists in generating and transmitting a third request consisting in requesting from the module 49 of control of the capture device 16 a retraction command of the capture device 16 of the unguided electric vehicle 14.
• step 72 is implemented within the control device 20 of the electrical supply system from the ground.
• the control device 20 of the ground power supply system ceases to supply 750V to the conductive segment on which the unguided electric vehicle 14 is positioned to connect it to a harmless potential, for example that of the current return segment which is substantially 0V, allowing a pedestrian to move safely on the segment in question, for example if the driver gets out of his vehicle and puts his feet on the ground.
• the method 56 comprises a step 82 where the capture device control module 49 16 commands the actuator 50 to retract the capture device 16.
• step 84 the capture device 16 is raised to the retracted position following step 82.
• the module 46 requires the transceiver 48 to re-transmit the position signal of the unguided electric vehicle 14 traveling on track V2 powered by the ground power supply system.
• the collection device 16 is deployed to the deployed position for current collection within the rails 12 of the track V2.
• 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 deterioration of the capture device 16 and the unguided electric vehicle 14 such as rails 12, while relieving the driver who does not have to worry about the capture device 16 in the face of a dangerous situation and allowing a pedestrian to circulate without danger on the driver segment where the sensing device 16 of the unguided electric vehicle 14 is retracted, in particular in the event of stopping of the unguided electric vehicle 14 in the presence of this dangerous situation and the driver descends on the road.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Power Engineering (AREA)
• Transportation (AREA)
• Traffic Control Systems (AREA)
• Electric Propulsion And Braking For Vehicles (AREA)
• Charge And Discharge Circuits For Batteries Or The Like (AREA)
• Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=69700044

Family Applications (1)

Country Status (3)

Family Cites Families (7)

• 2019
  • 2019-11-08 FR FR1912546A patent/FR3102955B1/fr active Active
• 2020
  • 2020-11-05 WO PCT/EP2020/081157 patent/WO2021089711A1/fr unknown
  • 2020-11-05 EP EP20799749.5A patent/EP4054881A1/de active Pending

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