# US 9,035,486 B2 · System adapted for one or more electrically propellable vehicles (detector arrangement) > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,035,486 B2 - Document ID: US9035486B2 - Status: Granted - Kind: B2 - Application number: 13/638,462 - Filed: 2011-03-31 - Published: 2013-01-24 - Granted: 2015-05-19 - Earliest claimed: 2010-04-01 - Assignees: Elways AB - Applicants: Gunnar Asplund - Inventors: Gunnar Asplund - Web page: https://patentgrep.com/patent/US9035486B2 ## CPC - B60M 1/36: Single contact pieces along the line for power supply - B60L 5/40: for collecting current from lines in slotted conduits - B60L 2200/26: Rail vehicles - B60M: POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES (control of points and safety arrangements along railway lines B61L; construction of rails and points in general E01B) - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES ## Abstract A detector arrangement related to a contact device in a system for driving an electrically propellable vehicle along a roadway. The system comprises a plurality of road sections subdividing the roadway, each one connected to one or more electric stations for charging a set of batteries of the vehicle and/or supplying the necessary power and energy for driving the vehicle forward. The contact device comprises displaceable current collectors disposed underneath the vehicle, which are moveable up and down and sideways. The current collectors are coordinated with control equipment to bring the current collector into mechanical and electrical contact with conducting rails arranged in a track in the roadway. The detector arrangement comprises one or more coils and is adapted to sense the variation of a magnetic field generated by additional electrical conductors disposed in the track. ## Claims ### Claim 1 A vehicle-related detector arrangement related to a contact means in a system for propelling an electrically propellable vehicle, by one or several batteries or a set of batteries along a roadway, the system comprising: a plurality of roadway sections for subdividing the roadway, wherein each one of the roadway sections comprises one or more elongated tracks or slits having conducting rails introduced therein adapted to be supplied with current and put under voltage, and being connectable over a switch to one or more vehicle-external power sources, including electric stations, for thereby enabling charging said set of batteries belonging to the vehicle but primarily driving the vehicle over the set of batteries along the roadway and the roadway sections and one or more powerable vehicles which may be driven by means of an electric motor or motors, with each of the respective vehicles comprising a control circuit adapted for necessary distribution of power, and for providing a required power and/or speed control, wherein an underneath side of said vehicle is provided with contact means displaceable up and down and sideways, in relation to the direction of transportation of the vehicle, wherein said elongated track or tracks and the conducting rails extend along the stretch of the roadway and wherein said contact means is coordinated with vehicle-related control equipment for creating an adaptation of the contact means so as to at least offer a mechanical and electrical contact with said conducting rails, wherein coordination between the conducting rails, arranged in the roadway section and the contact means of the vehicle occurs via coordinated current collectors, in the form of contact springs adapted for mechanical and electrical cooperation with respective ones of the conducting rails put under voltage, wherein the system comprises one or more electric conductors disposed collaterally with said track in the roadway, through which a current is adapted to pass, and/or one or a plurality of permanent magnets, for generating a magnetic field, wherein the detector arrangement comprises a coil, related to the vehicle, and adapted to sense the variation of said magnetic field based on a distance from a track and/or a height of the coil above said track and to actuate, the contact means, over the control equipment by means of associated auxiliary motors, for cooperation with the track and the conductor. ### Claim 2 (depends on 1) A detector arrangement in accordance with claim 1, wherein the distance between the conductors and/or the magnets in the roadway and the vehicle-related coil is less than 15 cm. ### Claim 3 (depends on 1) A detector arrangement in accordance with claim 1, wherein said coil comprises two coils, disposed after each other in a direction perpendicular to the direction of driving of the vehicle. ### Claim 4 (depends on 1) A detector arrangement in accordance with claim 1, wherein the control equipment is adapted to actuate auxiliary motors to lower the contact means into contact with the conducting rails, when the magnetic field has increased and begins to decrease towards a minimum value. ### Claim 5 (depends on 3) A detector arrangement in accordance with claim 3, wherein the control equipment is adapted to calculate a maximum magnetic field and there to actuate the auxiliary motors to lower the current collector into contact with conducting rails, when the magnetic field sensed by the two coils has increased and begins to decrease towards zero. ### Claim 6 (depends on 5) A detector arrangement in accordance with claim 5, wherein the control equipment is adapted to distinguish a minimum value or a maximum value of the magnetic field from a predetermined value relevant to identification of a false track from false values. ### Claim 7 (depends on 3) A detector arrangement in accordance with claim 3, wherein the coils are connected opposite to each other and that the current passes through the conductors in opposite direction for generating the magnetic field. ### Claim 8 (depends on 7) A detector arrangement in accordance with claim 7, wherein the currents passing through the conductors are equal. ### Claim 9 (depends on 2) A detector arrangement in accordance with claim 2, wherein the distance is between 10 and 1 cm.