Magnetic Or Electrostatic Field Control (e.g., Shielding) Patents (Class 307/91)
  • Patent number: 6133652
    Abstract: A radio frequency isolation system for geographically distance signal sources comprising AC and DC signals which develop differences in ground potential includes a control cabinetry chassis with the DC input signal source being electrically grounded to the chassis at the input side of the cabinetry and a hybrid circuit connected to the chassis through capacitors with the AC input signal being connected to the hybrid circuit for grounding the signal at both the input and output ends of the hybrid circuit to the chassis.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: October 17, 2000
    Assignee: ELSAG International N.V.
    Inventor: Mark E. Timieski
  • Patent number: 6130487
    Abstract: An electrical interface for connecting a truck electrical system to a trailer electrical system. The electrical interface includes a solid-state switching device for selectively connecting a power source in the truck electrical system to a circuit in the trailer electrical system. If a fault is detected in the provision of power to the circuit in the trailer electrical system, the solid-state switching device reduces the flow of power or disconnects the power source from the circuit in the trailer electrical system. A microcontroller system connected to the truck electrical system transmits control signals to the solid-state switching device to control the flow of power from the power source to the circuit in the trailer electrical system in accordance with instruction signals received from the truck electrical system.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: October 10, 2000
    Assignee: PACCAR Inc
    Inventors: Richard P. Bertalan, Lew E. Plummer, Jon M. Quigley, Jeffrey E. Bargewell
  • Patent number: 6127741
    Abstract: A vehicular use power feed apparatus comprising a battery and a plurality of power distribution units connected in a loop via power feed lines. Each power distribution unit has a current monitoring circuit, a current amount determination circuit, and a current direction determination circuit, detects the direction of current and magnitude of current flowing through the power feed line, and thereby detects an occurrence of a short-circuit. A control unit exchanges information regarding occurrence of short-circuits with adjoining power distribution units via a multiplex signal transmission unit so as to pinpoint the trouble point. The control unit operates the relay switch circuits on the two sides to break the connection so as to isolate the trouble point in cooperation with the control unit of the adjoining power distribution unit. The other relay switch circuit is operated to establish a connection so as to establish a new power feed line.
    Type: Grant
    Filed: March 16, 1998
    Date of Patent: October 3, 2000
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Yutaka Matsuda, Toshitaka Hara, Takezo Sugimura, Satoshi Kawai
  • Patent number: 6124822
    Abstract: A panel-mounted garage door remote control is comprised of a housing with a front end removably fitted into a sleeve on a mounting bezel. Conventional remote control circuitry is arranged in the housing. A pair of control switches at the front of the housing are in engagement with buttons on the bezel, and an indicator lamp at the front of the housing is positioned through a hole on the bezel. The remote control is inserted into an existing accessory mounting hole in an interior panel of a car. The bezel is sized to fit flush with the surface of the hole to provide a neat appearance. The housing is interchangeable with other bezels sized to fit accessory mounting holes in different cars.
    Type: Grant
    Filed: July 7, 1998
    Date of Patent: September 26, 2000
    Inventor: Sammy K. Y. Wu
  • Patent number: 6121696
    Abstract: An EMI preventive AC line filter includes rack having a rectangular top open chamber and two substantially U-shaped support arms at two opposite ends of the top open chamber, a cylindrical winding holder formed of two symmetrical halves and mounted in the top open chamber of the rack, the winding holder having an axially extended cylindrical coupling groove at the center, and an iron core coupled to the winding holder and secured to the rack to hold the winding holder in place, the iron core having a U-shaped peripheral wall forced into engagement with the U-shaped support arms of the rack, and a cylindrical shaft connected between two parallel side wall portions of the U-shaped peripheral wall and received in the axially extended cylindrical coupling groove in the winding holder.
    Type: Grant
    Filed: January 6, 1999
    Date of Patent: September 19, 2000
    Assignee: Jen-Yu Pan
    Inventor: Tei-Min Chen
  • Patent number: 6121738
    Abstract: Proposed is a control device (50) for a windshield wiper that serves in actuating a further window wiper. The control device (50), having an inventive embodiment, includes a control (18), whose signal output (20) provides first control signals (42) for actuating the windshield wiper, preferably a front windshield wiper (26) of a motor vehicle, and whose further signal output (22) provides further control signals (42) for actuating a further windshield wiper, preferably a rear window wiper (30).
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: September 19, 2000
    Assignee: Robert Bosch GmbH
    Inventors: Hans Meier, Guenther Riehl, Henry Blitzke, Manfred Burkart
  • Patent number: 6121692
    Abstract: The disclosed invention comprises an electronic control circuit for transferring power and data signals between an electronic circuit associated with a vehicle steering column and an electronic circuit associated with a vehicle steering wheel. Communication between the column circuit and the wheel circuit is accomplished by a rotary transformer having a primary and a secondary magnetic coil, wherein the primary magnetic coil is associated with the steering column and the secondary magnetic coil is associated with the steering wheel. The column circuit and the wheel circuit both include data signals that are transferred to the other across the rotary transformer. The column circuit also includes a power supply which provides power to the wheel circuit across the rotary transformer.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: September 19, 2000
    Assignee: Eaton Corporation
    Inventors: Paul A. Michaels, Irvin B. Rea
  • Patent number: 6119060
    Abstract: An opening portion (2) is formed on an instrumental panel (1). A plurality of units (U1-U3) and a panel body (P) corresponding to the units are arranged. The units (U1-U3) have neither an input portion such as switches operated by the passenger nor an output portion such as a display for the passenger, and switch groups (7, 8) and a display (5) are mounted on the panel body (P). The units (U1-U3) and panel body (P) are coupled and connected to each other in advance to obtain an electronic equipment assembly. Of this assembly, the units (U1-U3) are stored in the instrumental panel (1) via the opening portion (2), and the opening portion (2) is covered by the panel body (P), so that the panel body (P) constitutes a portion of the wall surface in the passenger room.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: September 12, 2000
    Assignee: Mazda Motor Corporation
    Inventors: Masatoshi Takayama, Hiroshi Ohmura, Isao Hirashima, Nagahisa Fujita, Futoshi Shoji, Yoshinori Otsubo
  • Patent number: 6114774
    Abstract: An entertainment system for a motor vehicle comprises a radio, a source of recorded music connected thereto, at least one loudspeaker, and at least one transducer arranged to receive the voice of an occupant of the vehicle and to produce an electronic signal output, and an electronic circuit for receiving said signal and for coupling the signal output to said radio.
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: September 5, 2000
    Inventor: Michael A. Fiegura
  • Patent number: 6114776
    Abstract: A vehicle-equipment control apparatus comprises a plurality of types of control instruction units respectively having different switch functions and incorporating different diode-connected circuits therein, unit mounting portions to which the plurality of types of control instruction units are mountable, and a control instruction unit determinator which, when any of the plurality of types of control instruction units is fit to the unit mounting portions, determines the type of the fit control instruction unit based on the output of each built-in diode-connected circuit. In this case, the diode-connected circuit is made up of two or more diodes or comprised of two or more diodes and one resistor.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: September 5, 2000
    Assignee: Alps Electric Co., Ltd.
    Inventors: Susumu Ito, Tatsuya Yokoyama, Hiroyuki Sato
  • Patent number: 6114777
    Abstract: A circuit for current limiting in a protection system, in particular for the firing of the firing pellet of an airbag system. The circuit has a switched-mode regulator connected to a low-pass filter that cooperate to limit the average and the peak value of the current flowing through the firing pellet. The switched mode regulator has switches that are switched on when the current flowing through the firing pellet falls below a reference value.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: September 5, 2000
    Assignee: Siemens Aktiengesellschaft
    Inventor: Stefan Hermann
  • Patent number: 6111378
    Abstract: A window wiper motor system for an automotive vehicle includes an incremental wiper position detection device. A window wiper feedback pattern is disposed on a stationary circuit board mounted within a gear enclosure with its electronic components facing inwardly toward a main gear. A low profile, flip chip integrated circuit attachment to the printed circuit board is also provided.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: August 29, 2000
    Assignee: UT Automotive Dearborn, Inc.
    Inventors: Philip LeMay, H. Winston Maue
  • Patent number: 6104098
    Abstract: Apparatus for controlling the rotational movement of a ladder or the like of mobile equipment having stabilizing outriggers when the ladder is rotated manually to the side of the mobile equipment which does not have the outrigger fully deployed. A two-part switch, arranged for one part to rotate relative to the other, develops various combinations of signals dependent upon the relative positions of the parts of the switch. A control circuit is arranged to recognize the positions of the switch parts and supplies control signals which allow the ladder to rotate at a particular rate and to a particular point as the operator is steering the ladder to the side of the mobile equipment at which the outrigger is not fully deployed.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: August 15, 2000
    Assignee: Paul S. Cardello
    Inventor: Paul S. Cardello
  • Patent number: 6104099
    Abstract: In a four-wheeled all-terrain vehicle, a handlebar bracket is attached to the upper end of a steering shaft, a handlebar has a central part fastened to the handlebar bracket with clamping members, a bracket is attached to the clamping member, and a handlebar cover is fixedly attached to the bracket so as to cover the central part of the handlebar from above. An accessory socket is disposed inside the handlebar cover and is held on the bracket. An accessory plug electrically connected to an external electric apparatus can be inserted inside the handlebar cover through a recess formed in a side wall of the handlebar cover and can be connected to the accessory socket. A battery is electrically connected to the accessory socket.
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: August 15, 2000
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Fumio Mizuta, Itsuo Takegami
  • Patent number: 6104101
    Abstract: An improved driver interface system provides prompts to an operator to adjust several vehicle parameters. In this way, the operator is assured to adjust the necessary components upon start up of the vehicle. This is particularly important when the driver is unfamiliar with the car, as with a rental car. In one embodiment, the driver may be provided with a transmitter that stores desired settings for at least some parameters. The transmitter can then transmit the operator's desired parameters to a control, and the vehicle components can then begin to be moved to the desired positions as the operator approaches the vehicle. In other aspects of this invention, improved switches are disclosed. A rotary switch rotates on a steering wheel rim. This switch is easily accessible to an operator, and does not require the operator to divert attention from the road. A second type switch includes an element which is sensitive to touch by the operator.
    Type: Grant
    Filed: September 14, 1998
    Date of Patent: August 15, 2000
    Assignee: UT Automotive Dearborn, Inc.
    Inventors: Robin Mihekan Miller, Hollister Hartman
  • Patent number: 6100603
    Abstract: Antennas of an anti-theft system are controlled with a pulse width modulated square-wave signal by a power control unit and a phase control unit. The control is such that a change in power causes no change in phase, and vice versa. This is accomplished by varying the pulse width of the square-wave signal if a change in power occurs and at the same time shifting the pulse rise time such that the phase remains constant.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: August 8, 2000
    Assignee: Siemens Aktiengesellschaft
    Inventor: Peter Gold
  • Patent number: 6100606
    Abstract: A miniaturized high frequency switching device is capable of giving an optimum over-all impedance over the length of a signal path while compensating for inevitable impedance variation seen in a particular segment of the signal path. The switching device includes a contact block having fixed contacts and a movable contact. The fixed contacts and the movable contact are surrounded by an electromagnetic shield which is supported on a conductor base to be grounded therethrough for isolating the current path from a surrounding electromagnetic field. The fixed contacts are formed respectively on one ends of terminal pins provided for electrical connection to an external load circuit operating on high frequency signals. The terminal pin extends through an insulation ring fitted in the conductor base so as to be electrically insulated therefrom and form the signal path flowing a high frequency current.
    Type: Grant
    Filed: January 6, 1999
    Date of Patent: August 8, 2000
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Atsushi Nakahata, Shigeyuki Okumura, Tomohiro Taguchi
  • Patent number: 6101433
    Abstract: Actual time of operation of a plurality of motorized vehicles is automatically recorded utilizing an operation logging circuit installed in each of the vehicles. Each operation logging circuit in each vehicle includes a memory button located in a protected enclosure and programmed with a unique vehicle identification code. Each memory button also has an electronic register for accumulating aggregate vehicle operation time. The memory button is electrically connected to the vehicle direct current electrical system for detecting actuation and deactuation of vehicle operation. For example, the connections to the memory button may be from the contacts for enabling the power steering, contacts for engaging the vehicle for forward and reverse movement, or contacts for the key switch for providing electrical power to the vehicle. A voltage regulating system steps down the power from the vehicle to the level of 5 volts which is required for operating integrated circuits.
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: August 8, 2000
    Assignee: Challenger Enterprises, LLC
    Inventor: Ronald F. Flicker, Jr.
  • Patent number: 6100794
    Abstract: A fifth wheel coupling safety system for indicating when a king pin is properly locked into a fifth wheel assembly. The system includes a fifth wheel assembly having a slot for receiving a king pin of a trailer and a locking mechanism for coupling the king pin to the fifth wheel assembly. The locking mechanism has a locking jaw adapted for coupling the king pin to the fifth wheel assembly, and a pull handle for positioning the locking jaw between locked and unlocked positions. The locking jaw couples the king pin to the fifth wheel assembly when in the locked position and permits separation of the king pin from the fifth wheel assembly when in the unlocked position. The pull handle is positionable between a locking position and an unlocking position. The pull handle positions the locking jaw in the locked position when the pull handle is in the locking position and the pull handle positions the locking jaw in the unlocked position when the pull handle is in the unlocking position.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: August 8, 2000
    Inventor: Terrence E. Hillier
  • Patent number: 6097107
    Abstract: A short prevention control apparatus of an air conditioner for electric vehicles comprises a circuit breaker for a high voltage power source used to drive a compressor of the air conditioner, a drive circuit for driving a compressor motor and a short detecting circuit connected between a coupling wire and ground, wherein the wire connects the circuit breaker and the drive circuit. The short detecting circuit detects a short at a position between ground and a polar bus terminal of the drive circuit or an internal terminal of the compressor motor, when supply of a high voltage direct current is interrupted by the circuit breaker. A short in the air compressor side may be detected and determined without affecting the running of the electric vehicle.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: August 1, 2000
    Assignee: Sanden Corporation
    Inventor: Hideo Ikeda
  • Patent number: 6087735
    Abstract: One embodiment of an engine has an electrical system generally comprising a charge circuit and an ignition circuit. A primary power supply circuit connects the charge circuit and the ignition circuit through a non-contact switch circuit. The non-contact switch is adapted to connect the primary power supply circuit to the ignition circuit when the engine is started. A secondary power supply circuit is coupled to at least one electrical component and to the ignition circuit. The secondary power supply circuit has a main switch and a fuse arranged upstream of the main switch. Upon closing the main switch, the engine is started and the primary power supply circuit and the associated non-contact switch are closed. Another embodiment of the engine has an electrical system which adds control of a fuel injector circuit. The fuel injector circuit is in electrical communication with the ignition circuit and a switching circuit which controls the ignition circuit and the fuel injector circuit.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: July 11, 2000
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventor: Kazuhiro Nakamura
  • Patent number: 6075438
    Abstract: A communication network for vehicle control and a method of diagnosing the same in which the self-diagnosis functions attributed to some of control units in the communication network are combined with a manual diagnosis operation, whereby the diagnosis can be carried out by a relatively simple arrangement without sacrificing readiness and correctness, thus ensuring higher cost performance and reliability. The communication network includes control units, each coupled to at least one of auxiliary input and output devices, connected with communication lines to one another for transmitting and receiving unique signals. Each of at least two of the control units includes a transmitter, a receiver, a controller, and an indicating means, and has a diagnosis function.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: June 13, 2000
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Tomofumi Abe, Hirofumi Ohtsuka, Hirohide Suda, Kouji Yamaoka, Seiju Kawamata
  • Patent number: 6054780
    Abstract: An isolator having a driver circuit which responsive to an input signal drives appropriate signals into one or more coils which are magnetically coupled to one or more corresponding MR or GMR elements whose resistance is variable in response to the magnetic field applied by the coil(s), and an output circuit that converts the resistance changes to an output signal corresponding to the input signal. A Faraday shield is interposed between the coil(s) and the MR or GMR elements. Common mode transients applied to the driver are capacitively coupled from the coil(s) into the Faraday shield and therethrough to ground, instead of into the MR elements. A second Faraday shield may be disposed in spaced relationship with the first Faraday shield and referenced to the potential of the MR elements for even greater common mode rejection. The entire structure may be formed monolithically as an integrated circuit on a single substrate, for low cost, small size, and low power consumption.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: April 25, 2000
    Assignee: Analog Devices, Inc.
    Inventors: Geoffrey T. Haigh, Paul R. Nickson
  • Patent number: 6048020
    Abstract: An electrical interconnection module forms part of the structure of an automotive vehicle instrument panel and connects electrical components disposed thereon with a bulkhead connector on the forward fire wall of the vehicle. The interconnection module has electrical connectors disposed thereon at various locations for making connection with the electrical components. A plurality of bus bars are disposed in a group on the surface of the module and form part of an electrical junction block integrated with the module. Narrow grooves extend along the surfaces of the module and have wires embedded therein to provide electrical interconnection between the connectors and the bus bars. The bus bars and the terminals of the electrical connectors comprise insulation displacement connectors for making connection with the wires.
    Type: Grant
    Filed: February 11, 1998
    Date of Patent: April 11, 2000
    Assignee: Yazaki Corporation
    Inventors: William Gronowicz, Mark Steven Rosales, Masa Saito
  • Patent number: 6037673
    Abstract: A towing and brake circuit includes a power source and a switch electrically connected between the power source and a park brake solenoid. A flasher module is electrically connected to the park brake solenoid. A unidirectional current controller may preferably be electrically connected between the park brake solenoid and the flasher module to electrically connect the park brake solenoid to the flasher module. An engine oil pressure switch is electrically connected between a power source and the park brake solenoid to flow current from the power source to the park brake solenoid when engine oil pressure is generated.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: March 14, 2000
    Assignee: Case Corporation
    Inventors: Timothy D. Buhler, Dwight D. Lemke, Jeff G. Oligmueller, Leroy K. Pickett
  • Patent number: 6031296
    Abstract: In a power window apparatus in which between a car power source and a ground, a first series circuit formed of a first switch and a first relay and a second series circuit formed of a second switch and a second relay are connected; when the first switch is operated, the first relay is energized, a motor is rotated in one direction due to switching of contacts of the first relay, and a window is raised; and when the second switch is operated, the second relay is energized, the motor is rotated in the other direction due to switching of contacts of the second relay, and the window is lowered, the first switch and the second switch each have one circuit with two contacts, and the fixed contacts which are switched when the first switch or the second switch is not operated are grounded.
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: February 29, 2000
    Assignee: Alps Electric Co., Ltd.
    Inventors: Isao Takagi, Akira Sasaki
  • Patent number: 6029108
    Abstract: A vehicle brake device has wheel brake actuators or wheel brake units which are provided with electronic circuits. The actuator or units can be actuated by at least one redundant communications system. Transmission of data takes place on the at least one communications system according to a predefinable communications matrix in a time-controlled and fault-tolerant manner.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: February 22, 2000
    Assignee: Daimlerchrysler AG
    Inventor: Ralf Belschner
  • Patent number: 6016016
    Abstract: A voltage supply apparatus for providing a supply voltage for electric devices in an aeroplane cabin comprises a socket (22) to which the electric device is connectable by means of a plug (38). The socket (22) comprises plug detectors (45, 46) detecting the presence of the plug in the socket (22). A supply device (16) is arranged remotely from the socket (22) and is connected to the socket (22) via a signal line (18) and via a supply line (20) for the supply voltage. The supply device (16) applies the supply voltage to the socket (22) if the plug detectors (45, 46) indicate the presence of the plug (38) via the signal line (18) to the supply device. The supply lines (20) and the socket (22) are only alive if the insertion of a plug (38) has been detected. In this way, a danger to people due to manipulations on the socket or on the supply line is excluded.
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: January 18, 2000
    Assignee: Luftansa Technik AG
    Inventors: Henry Starke, Andrew Muirhead
  • Patent number: 6016045
    Abstract: A back-up battery system is provided for use with a real-time clock of an on-board device controller. In its normal operation, the real-time clock (RTC) is powered by a primary power source, such as a vehicle battery. When the primary source is interrupted, the back-up battery system is invoked to provide back-up power to the RTC. The system includes a low voltage dry cell battery mounted within a fuse component configured for electrical engagement within the vehicle fuse block. In one embodiment, a relay is interposed between the fuse component and the RTC to make and break the back-up power circuit in response to the state of the primary power source. In another embodiment, the battery within the fuse component is replaceable, with the fuse component including a base and a removable cap. In still another embodiment, the battery within the fuse component is a rechargeable battery, and the back-up power system includes a recharging circuit operable with the primary power source.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: January 18, 2000
    Assignee: Cummins Engine Company, Inc.
    Inventors: Mark G. Thomas, Ronald B. Lannan, Kenneth R. Federle
  • Patent number: 6013957
    Abstract: The arrangements essentially comprise an antenna element placed in the vicinity of a radiating conductor of the equipment in such a manner as to absorb the electromagnetic energy reaching it by coupling with the radiating conductor.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: January 11, 2000
    Assignee: Alcatel
    Inventors: Antoine Puzo, Juan Gonzalez
  • Patent number: 6012007
    Abstract: Pressure sensors on the bottom surface of a seat cushion respond to occupant weight. A microprocessor evaluates the sensor outputs according to total force, load rating, long term average, sensor groups and a fuzzy measure to discriminate between large and small occupants and allow air bag deployment for large but not small occupants. Allow and inhibit decisions are filtered avoid sudden response to transient pressure changes on the seat. When a large occupant is positively detected, an allow decision is locked in place as long as total force exceeds a threshold.
    Type: Grant
    Filed: June 3, 1997
    Date of Patent: January 4, 2000
    Assignee: Delphi Technologies, Inc.
    Inventors: Duane Donald Fortune, Robert John Cashler
  • Patent number: 6008546
    Abstract: An electronic control system including a collision avoidance system is for use on an electric cart, such as used for shopping, wherein the electronic control system includes a databus board for expanding user options on the electric cart. The collision avoidance system includes sensors which detect the presence of objects in the path of the moving cart and the system acts to stop the cart when the objects are detected. Additional user options of the electronic control system are an anti-theft system for deterring cart theft and vandalism and a voice module for playing recorded messages to the cart operator.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: December 28, 1999
    Assignee: Assembled Products Corporation
    Inventor: William L. Sage
  • Patent number: 5998885
    Abstract: A motor vehicle propulsion system includes an electrical energy source and a traction motor coupled to receive electrical energy from the electrical energy source. The system also has a first bus provided electrical energy by the electrical energy source and a second bus of relatively lower voltage than the first bus. In addition, the system includes an electrically-driven source of reaction gas for the electrical energy source, the source of reaction gas coupled to receive electrical energy from the first bus. Also, the system has an electrical storage device coupled to the second bus for storing electrical energy at the lower voltage. The system also includes a bidirectional energy converter coupled to convert electrical energy from the first bus to the second bus and from the second bus to the first bus.
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: December 7, 1999
    Assignee: Ford Global Technologies, Inc.
    Inventors: Michael Alan Tamor, Allan Roy Gale
  • Patent number: 5994857
    Abstract: An interlock system for a lawn and garden tractor or similar vehicle includes a PTO switch having off, on and momentary on positions and connected to a latching relay to provide PTO operation in reverse if the switch is moved to the momentary on position prior to the vehicle being shifted into reverse. Once the vehicle is operating in reverse with the PTO activated, the operator can release the switch from the momentary on position and the PTO will remain activated. However, once PTO operation has been interrupted for any reason, the PTO can be reenergized only after reverse operation has been stopped and the PTO switch has been moved to the off position.
    Type: Grant
    Filed: February 11, 1998
    Date of Patent: November 30, 1999
    Assignee: Deere & Company
    Inventors: Rudolph Andrew Peterson, Jr., Barry Michael Hough
  • Patent number: 5986350
    Abstract: A power supply system having a primary control power line for supplying electric power to control systems indispensable to driving the vehicle from an electric power source. The power supply system is provided with an ignition switch cooperating with an ignition switch system so as to connect the electric power source to the indispensable control systems when an ignition key is turned to the ignition position and to disconnect the electric power source when the ignition key is turned to the off position. The power supply system also includes a subordinate control power line including a removable fuse for supplying electric power from the electric power source through the ignition switch system to at least those control systems indispensable to driving the vehicle.
    Type: Grant
    Filed: September 10, 1997
    Date of Patent: November 16, 1999
    Assignee: Mazda Motor Corporation
    Inventor: Seiji Hirano
  • Patent number: 5986355
    Abstract: The present invention relates to an arrangement for reduction of magnetic alternating fields for example in a vehicle or similar which comprises at least one electrical system which comprises at least two elements of which at least one comprises one or more components generating and/or consuming electricity, and which are connected through at least one connecting cable in which flows a current having an alternating current component generating a low frequency magnetic field. The arrangement also comprises at least one detecting element which is arranged to detect the alternating current component, and means for generating a compensating current with the use thereof. The compensating current flows adjacent to the connecting cable in such a way that the low frequency magnetic field is reduced or eliminated.
    Type: Grant
    Filed: April 20, 1998
    Date of Patent: November 16, 1999
    Assignee: AB Volvo
    Inventor: Magnus Rosen
  • Patent number: 5982047
    Abstract: The invention relates to a pressure switching device of the type used in motor vehicles and includes a pressure sensor 21 arranged in a housing 3, which generates an electrical signal U according to the pressure p of a pressure medium or monitored fluid transmitted through a supply opening 15 of housing 3. The pressure switching devices includes an interpretation and switching unit 55 adapted to received the electrical sensor signal U and is further adapted to compare the sensor signal with at least one switching threshold value to trigger a switching function or a sequence of switching functions upon the electrical sensor signal exceeding and/or falling short of the switching threshold value.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: November 9, 1999
    Assignee: TRW Fahrzeugelektrik GmbH & Co. KG
    Inventors: Uwe Probst, Robert Skofljanec
  • Patent number: 5982048
    Abstract: The invention concerns a procedure for selectively connecting a status detection device--from a group of such devices based on different physical action principles, in particular belt buckle status detection, and seat occupation detection, within a passive safety system for motor vehicles, in particular an airbag system, and/or a belt pretensioning system,--to the signal input of a control unit, using a single wire connection, by causing the control unit to activate an appropriate current/voltage supply in accordance with the physical action principle, and by appropriately processing the signals generated by the status detection device, which signals will then be fed to the control unit for evaluation. Furthermore, an interface circuit is specified for implementing the procedure according to the invention.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: November 9, 1999
    Assignees: Temic Telefunken microelectronic GmbH, Bayerische Motorenwerke
    Inventors: Gunter Fendt, Peter Hora, Hans Spies, Helmut Rauh
  • Patent number: 5982049
    Abstract: A control module, in particular for a control circuit in a motor vehicle, is configured in such a way that it can be produced economically. The control module has a two-part housing which includes a lower part and an upper part. The lower part is configured as a plate, having a connector member for a downstream device, which can be joined flat to a circuit board. The circuit board is populated on a front side with components which can be soldered with the reflow method to connector parts of the circuit board. The upper part, which is configured as a cover, has an opening to receive a plug connector, and can be snap-locked onto the plate. The control module is preferably used in automobile engineering.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: November 9, 1999
    Assignee: Robert Bosch GmbH
    Inventors: Gert Jakob, Frank Kurfiss, Elisabeth Abendroth
  • Patent number: 5982156
    Abstract: An open loop control arrangement for an electrical energy flow-controlling circuit coupling the varying terminal voltage of an energy storing capacitor to a fixed voltage direct current aircraft energy supply bus in order to supplement bus voltage transients. The open loop control arrangement allows energy flow from the varying terminal voltage of the capacitor to the fixed bus voltage by providing a time varying pulse modulation cycle in an energy conveying and voltage changing inductive element located in the energy coupling path. The open loop control arrangement senses input voltage rather than output voltage of the coupling circuit in what is termed a "feed forward " output regulation algorithm. A transistorized and integrated circuit inclusive preferred embodiment of the invention is disclosed in which a disconnect of the inductance from the aircraft supply bus is accomplished during shunt path inductance energy charging portions of an operating cycle.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: November 9, 1999
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Joseph A. Weimer, Marian K. Kazimierczuk, Antonio Massarini, Robert C. Cravens, II
  • Patent number: 5969624
    Abstract: A hybrid vehicle comprises a motor driving the vehicle's wheels, multiple batteries supplying electric power to the motor, and a generator driven by an internal combustion engine to generate electric power for charging the batteries. Battery sensors detect terminal voltages of the batteries. An ECU controls a DC/DC converter to distribute electric power to independently charge the batteries through charge lines in accordance with the shortage of charge in respective batteries when excess electrical power is available from the generator even after a required amount of electrical power from the generator is used to rotate wheels.
    Type: Grant
    Filed: April 5, 1996
    Date of Patent: October 19, 1999
    Assignee: Nippon Soken, Inc,
    Inventors: Shoji Sakai, Hironori Asa, Sadahisa Onimaru, Mitsuo Inagaki
  • Patent number: 5965956
    Abstract: An overhead line for electrical energy transmission includes at least one phase conductor which receives a phase current which has a phase and an amplitude. A compensation loop surrounds the at least one phase conductor. A compensation current which has a phase and an amplitude is fed into the compensation loop by a driving voltage. The phase and the amplitude of the compensation current is set with respect to the phase and the amplitude of the phase current flowing in the at least one phase conductor such that a magnetic flux produced by the compensation current counteracts a magnetic flux produced by the phase current. At least one additional loop surrounds the at least one phase conductor connected to the compensation loop. The driving voltage for the compensation current is produced in the compensation loop and in the at least one additional loop. The compensation loop and the at least one additional loop define the at least one phase conductor into at least two main sections.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: October 12, 1999
    Assignee: ABB Research Ltd.
    Inventors: Helmut Boehme, Gerd Fitterer, Rolf Paschen, Bernd Smailus
  • Patent number: 5952729
    Abstract: A junction box 2 is formed at a mounting portion of a meter unit 3 disposed at a central portion of a rear handlebar cover 1 in a motorcycle, and wire harnesses 12 and 14 connected to a vehicle body and a front handlebar cover are connected to the junction box 2. Bus bars 31 and 33 made of a metal plate or bar are integrally embedded within the rear handlebar cover made of a synthetic resin in order to electrically connect electric parts such as switches Ss, Sd, Sw, Sh and the like supported on left and right portions of the rear handlebar cover 1 and the junction box 2 to each other. Thus, it is possible to easily and reliably perform the wiring to the electric parts supported on the handlebar cover 1 in the motorcycle.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: September 14, 1999
    Assignee: Toyo Denso Kabushiki Kaisha
    Inventors: Toshihiko Shiratori, Hiroshi Sakamoto, Masazumi Igarashi
  • Patent number: 5952734
    Abstract: A coil for bucking out undesired ambient time varying magnetic fields in the region of the gap in an MRI magnet structure is energized by a servo loop controlled by a Flux Lock Circuit having, in turn, a closed loop circuit controlled by a magnetic sensor. The sensor has a pair of windings energized in parallel by a 2 KHz oscillator, the windings being oppositely poled to induce zero voltage in a third winding to which feedback signals are supplied. Extraneous fields cause an asymmetry in the current passing through the pair of windings which asymmetry is accompanied by the generation of second harmonic components which are detected and fed back to the third winding for restoring symmetry. The signal fed back to the third winding is also used for controlling the current supplied to the field bucking coil.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: September 14, 1999
    Assignee: Fonar Corporation
    Inventor: Mark Gelbien
  • Patent number: 5939795
    Abstract: Seat sensor switches connected to the drivers seat and passenger's seat of a motor vehicle generate signals indicating when the seats are occupied. The passenger sensor switch generates an adult present signal, a child or small adult signal, or an infant/small child present signal depending on the size of the occupant. In response to a signal indicating that all the seats are unoccupied, the parking brake is set, a windshield curtain and a side window sunshade panel are deployed, and the headlamps and ceiling light are deactivated. In response to an adult present signal from the passenger sensor switch, a first quantity of air bag propellant is electrified, the air bag is aimed at an upper location, and the shoulder belt anchor is moved to an upper position. In response to a child or small adult present signal from the passenger sensor switch, a second, smaller quantity of air bag propellant is electrified, the air bag is aimed at a lower location, and the shoulder belt anchor is moved to a lower position.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: August 17, 1999
    Inventor: Wei Kong Yu
  • Patent number: 5934403
    Abstract: A work vehicle having an improved transmission control circuit, that is responsive to a shuttle shift lever and associated switch that generates a forward signal, a reverse signal and a neutral signal, whereby the transmission control circuit engages the transmission in a forward gear ratio on receipt of the forward signal, a reverse gear ratio on receipt of the reverse signal and places the transmission in neutral on receipt of the neutral signal, and further wherein the transmission control circuit further places the transmission in neutral whenever it receives both a forward and neutral signal, or both a reverse and neutral signal.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: August 10, 1999
    Assignee: Case Corporation
    Inventors: Byron R. Moore, Chad E. Bement, Michael G. Nahorny
  • Patent number: 5929532
    Abstract: A method and apparatus for permitting use of an ABS electrical power circuit associated with a tractor-trailer vehicle to provide auxiliary power whenever the trailer is parked and which provides for full power to an ABS brake control circuit through the ABS electrical power circuit in response to air pressure in the emergency brake supply line of the tractor-trailer vehicle being above a predetermined minimum which is sufficient to release the trailer's emergency brake and permit movement of the trailer.
    Type: Grant
    Filed: January 23, 1998
    Date of Patent: July 27, 1999
    Assignee: TRAMEC Corporation
    Inventor: Edward D. Sell
  • Patent number: 5923094
    Abstract: An electromechanical control unit for adjustment devices in motor vehicles which can be used with particular advantage in connection with a window lift drive in a vehicle door. The electromechanical drive, the electronics system and the switch of the electromechanical control unit form one pre-testable modular unit. Preferably each switch is in keyed engagement with a cover and is elastically mounted relative to the electronics system, for example through a flexible flat band cable connection.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: July 13, 1999
    Assignee: Brose Fahrzeugteile GmbH & Co. KG
    Inventors: Jurgen Seeberger, Eberhard Pleiss, Manfred Stenzel, Helmut Sesselmann
  • Patent number: 5920130
    Abstract: An overhead line for electrical energy transmission, includes three phase conductors of a three-phase system. The three phase conductors are disposed vertically one above the other and define an upper phase conductor and a lower phase conductor. At least one additional compensation loop having a first conductor, a second conductor, and vertical connecting conductors surround the three phase conductors. The first conductor of the at least one additional compensation loop is disposed parallel to and above the upper phase conductor. The second conductor of the at least one additional compensation loop is disposed parallel to and below the lower phase conductor. The first and the second phase conductors are connected to one another via vertical connecting conductors. A compensation current is fed into the at least one compensation loop.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: July 6, 1999
    Assignee: ABB Research Ltd
    Inventors: Rolf Paschen, Gerd Fitterer, Helmut Boehme, Norbert Graeber
  • Patent number: 5920128
    Abstract: A communication link between a tractor and trailer is established utilizing existing by dormant tractor and trailer circuitry. In one embodiment of the invention, a tractor communications device has a communications port connected to a turn signal circuit and a trailer communications device has a communications port connected to the same turn signal circuit. The two communications devices permit communications therebetween over the turn signal circuit as long as the turn signal circuit is inactive, and otherwise inhibits such communications. In another embodiment of the invention, such a communications link is used to transmit a fault signal, relating to an abnormally operating trailer anti-lock brake system (ABS), to the tractor for activation of an in-cab ABS warning device.
    Type: Grant
    Filed: February 2, 1998
    Date of Patent: July 6, 1999
    Assignee: Grote Industries Inc.
    Inventor: Antonio Hines