Lighting Circuits Patents (Class 307/10.8)
  • Patent number: 6504476
    Abstract: In a method for producing a warning signal for switching on a vehicle lighting system when the environmental brightness is inadequate, the external light signal is transmitted as a radio signal, in a first step, and is received by the vehicle. In addition, further operating data are detected, an evaluation is then carried out by a control unit and, if necessary, a warning signal is produced for the operator. In an apparatus for use with the method there is control unit for detection and logic-processing of signals. This control unit produces a warning signal for the driver.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: January 7, 2003
    Assignee: Mannesmann VDO AG
    Inventor: Werner Wallrafen
  • Patent number: 6504262
    Abstract: A wire harness distribution structure for a vehicle includes a multi-point junction box (12) provided at one end of a body panel (11) of the vehicle, and two or more electric equipment (21-26) furnished to the other end of the body panel (11). Two or more distribution belts (13A-13F) extend in the radial direction from the multi-point junction box (12) toward the electric equipment (21-26). The multi-point junction box (12) has two or more branch connectors (12a-12e), and each electric equipment has a connector (21a-26a) facing the associated branch connector of the multi-point junction box (12). Each distribution belt (13) comprises a flat cable (14) and female connectors (15) attached to both ends of the flat cable (14), and extends between one of the branch connector (15) and the associated electric equipment at a shortest path.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: January 7, 2003
    Assignee: Yazaki Corporation
    Inventors: Tohru Aoki, Naomi Kisu
  • Patent number: 6492744
    Abstract: An automobile steering column switch includes a support rigidly mounted to the steering column tube of an automobile steering column. The support comprises at least one of a wiper switch, blinker switch, and driving light switch. The support includes a printed circuit board provided with electrical contacts to which the at least one of a wiper switch, blinker switch and driving light switch and an ignition starter switch are coupled. The support is configured in one piece and provided with an accommodation space for the ignition starter switch. The support with the switches can be mounted as a pre-assembled module to the steering column 2.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: December 10, 2002
    Assignee: Delphi Technologies, Inc.
    Inventors: Gerd Rudolph, Joseph E. Khoury
  • Patent number: 6483246
    Abstract: Left and right turn lamps are used as lamps in a daytime travel of a vehicle. When a first daytime turn-on requirement is satisfied, i.e., when an ignition switch is ON, a left-hand contact of a turn switch is OFF, a right-hand contact thereof is off, and the like, a left front turn lamp and a right front turn lamp are turned on as the lamps in the daytime travel, based on signals outputted from first and second AND logic circuits. When the left-hand contact of the turn switch is turned on in this state, the left front turn lamp flashes, based on a signal outputted from a flasher circuit, whereas the right front turn lamp keeps a turn-on state. On the other hand, when the right-hand contact of the turn switch is turned on, the right front-turn lamp flashes, based on a signal outputted from the flasher circuit, whereas the left front turn lamp keeps a turn-on state.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: November 19, 2002
    Assignees: Anden Co., Ltd., Denso Corporation
    Inventors: Shigekazu Sugimoto, Yoshichika Abe, Hiroshi Yagyu
  • Publication number: 20020158514
    Abstract: An irradiation direction control apparatus 1 for a vehicular lamp has a vehicle height detecting means 2 for detecting change in the height of an axle portion of at least one of front wheels and rear wheels. The detecting means 2 sends irradiation control means 4 detection information representing the detected change in the height. The irradiation control means 4 calculates a moving average value of data representing change in the height of the axle portion or representing the pitch-angle every predetermined time period, and subsequently obtains a second moving average value of the calculated moving average. Further, the control means 4 generates a control signal according to the obtained moving average value, and controls the irradiation direction of the lamp 6 so that the irradiation direction thereof is maintained at all times in a fixed direction.
    Type: Application
    Filed: December 14, 2000
    Publication date: October 31, 2002
    Inventor: Makoto Izawa
  • Patent number: 6470260
    Abstract: In the Police Chase Eliminator (PCEL), a targeted vehicle being pursued through traffic may be apprehended by first identifying vehicles in the vicinity of the targeted vehicle, following the targeted vehicle until it is the only vehicle remaining of the originally identified vehicles, and then apprehending the targeted vehicle. This process may also be carried out by first identifying a select group of vehicles using vehicle descriptor limitations. The system for remotely controlling a targeted vehicle comprises a control unit which would normally be located in a police car and vehicle modules which are installed in motor vehicles. The control unit transmits activate commands to the vehicle modules which respond by either transmitting back a visual signal or an electronic signal. The control unit may also transmit control commands to the vehicle modules to control the operation of the vehicle.
    Type: Grant
    Filed: March 4, 2002
    Date of Patent: October 22, 2002
    Assignee: P-Cell Research Inc.
    Inventors: Daniel Martens, Larry Martens, Bryan E. Markle
  • Patent number: 6465962
    Abstract: A vehicle auxiliary lamps installation kit (10) that is designed to be operated in combination with a set of auxiliary lamps (26), a vehicle's alternator (34) and a vehicle battery (36). The kit (10), which is designed to be placed and attached within the engine compartment of a vehicle, is disclosed in four design configurations. The first and second designs allow the auxiliary lamps (26) to be manually turned on for a brief period with a remote pocket transmitter (14). In the third and fourth designs the auxiliary lamps (26) automatically turn on when the vehicle's engine is running with the vehicle generator (34) operating. The fourth automatic design also incorporates a photo sensor circuit (40) that causes the auxiliary lamps (26) to turn on only when the ambient lamp level falls to a preselected level such as when darkness appears.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: October 15, 2002
    Inventors: Sam Fu, Calvin S. Wang
  • Patent number: 6465963
    Abstract: An inventive rearview mirror assembly is disclosed in which a microwave antenna is mounted so as to receive transmissions from one or more satellites through the front windshield of the vehicle. The microwave antenna may be tuned to receive satellite transmissions from a position identification system constellation of satellites, such as GPS or GLONASS. Additionally, the microwave antenna may be tuned to alternatively or additionally receive transmissions from at least one communication satellite, such as a CD radio satellite. In addition to the inventive rearview mirror assembly, an inventive electrical control system is disclosed that may be used as a navigation system, an electrochromic rearview mirror control system, a head lamp control system, a tire pressure monitoring and display system, a temperature sensing and display system, a vehicle compass system, a vehicle data recorder system, and/or a vehicle odometer verification system.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: October 15, 2002
    Assignee: Gentex Corporation
    Inventors: Robert R. Turnbull, Robert C. Knapp, Eric J. Walstra
  • Patent number: 6462479
    Abstract: The headlamp system provides a reduced amount of illumination adjacent a driver's line of sight while providing a maintained or increased level of illumination from a source that is offset from the driver's line of sight.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: October 8, 2002
    Inventor: John T. Griffin
  • Patent number: 6455949
    Abstract: A multivoltage vehicle electrical system for supplying electrically operated loads in motor vehicles, specific loads being respectively assigned to each vehicle electrical circuit which is respectively operated with a different voltage, is characterized in that cross-connecting means are provided which, in the event of a failure or fault in a circuit, automatically ensure that the loads connected to this failed vehicle electrical circuit are supplied from one of the other vehicle electrical circuits.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: September 24, 2002
    Assignee: DaimlerChrysler
    Inventors: Wolf-Dieter Blauensteiner, Fritz Schmidt
  • Patent number: 6456206
    Abstract: The present invention relates to a inclement weather safety system where the purpose of the system is to allow other drivers in your vicinity to see your vehicle at a further distance away, when there is very severe weather conditions by strobing the head lights or fog lights or strobe lights at microsecond speed and/or increasing the illumination of various secondary lights of the motor vehicle.
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: September 24, 2002
    Inventors: Richard M. Rocca, Irving Jacobson
  • Patent number: 6455951
    Abstract: A power supply system having a simple arrangement of connections between a load connected to a positive terminal of a high voltage battery via a pulse modulation control circuit and to and a positive terminal of a low voltage battery permits loading to be controlled throughout the system without damage or electromagnetic interference. The power supply system can accommodate low voltage loads on the high voltage subsystem to reduce conversion requirements for any DC/DC converter that is included in the power supply system. A charging controller regulates the amount of charge supplied to the high voltage and low voltage batteries.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: September 24, 2002
    Assignee: Yazaki North America, Inc.
    Inventors: Gil Shultz, Chris Shultz
  • Patent number: 6456195
    Abstract: A vehicle lighting control system according to the present invention includes an electronic module connected to the vehicle lighting and windshield wiper systems which provides daytime running lamps (high beams at fifty percent power) during normal, daytime operation a full complement of vehicle lights including the running lights and low beam headlights at full power, when the wiper system is activated. The full complement of lights is deactivated by turning off the ignition switch or turning the wiper switch to the “OFF” position, turning the headlight switch to the “ON” position, and then turning the headlight switch to the “OFF” position. As such, the driver is prevented from inadvertently shutting off the full complement of lighting in a low visibility situation. The present invention also incorporates an automatic delay feature which allows the driver to wash the windshield in non-rain conditions without activating the full complement of lights.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: September 24, 2002
    Inventors: Dennis L. Berndt, Emil J. Doczy
  • Patent number: 6452337
    Abstract: There is provided a lamp circuit for automobiles which complies with DRL illumination and reduces the number of electrically functional components and circuits. The lamp circuit for automobiles includes a DRL controller complying with DRL illumination, a lamp switch box, and a DRL relay which is also used for the head lamps. The DRL relay has two contact points, a common contact point, and two coils. This allows only one relay to be provided within the area in which two relays have conventionally been applied, thereby reducing the number of relays and necessary circuits.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: September 17, 2002
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventor: Takashi Murata
  • Patent number: 6445085
    Abstract: A vehicle headlamp leveling device for automatically tilting the headlamps of a vehicle is provided. The light axes of the headlamps based on pitch angles of the vehicle are tilted to level the headlamps relative to a road surface.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: September 3, 2002
    Assignee: Koito Manufacturing Co., Ltd
    Inventors: Atsushi Toda, Nobuhiko Muramatsu, Hideaki Takeuchi
  • Publication number: 20020117898
    Abstract: Power-supply device for 12-volt electrical components which are installed in a motor vehicle, in particular for components of the lighting or indicator system, from an electrical-energy source (E2) the voltage of which is higher than the rated voltage of 12 volts of the components, which are usually protected by a normal protection network when they are powered by a source at their rated voltage. The device includes elements (D1, C, Dz) which are identical or similar to those of a normal protection network placed at the head end of the 12 volt input of an electrical component (1), which are combined with a minimum number of additional active components (T) so as to produce a basic regulated power supply at 12 volts, which further ensures protection of the electrical component (1) which is equivalent to that of the normal protection network.
    Type: Application
    Filed: February 26, 2002
    Publication date: August 29, 2002
    Inventor: Joel Leleve
  • Patent number: 6438478
    Abstract: An automatic leveling system has a headlamps optical axes L adapted to tilt vertically relative to a body of a vehicle by driving actuators 10, a control part 16 for controlling the driving of the actuators 10, a vehicle speed sensor 12, a vehicle height sensor 14 and a storage part 20 for storing pitch angle data detected by the vehicle height sensor 14. The control part 16 controls the actuators 10 based on a detected pitch angle such that the optical axes L of the headlamps are inclined to a predetermined angle relative to the road surface.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: August 20, 2002
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Atsushi Toda, Hideaki Takeuchi
  • Patent number: 6429594
    Abstract: A system for automatically controlling continuously variable headlamps on a controlled vehicle includes an imaging system capable of determining lateral and elevational locations of headlamps from oncoming vehicles and tail lamps from leading vehicles. The system also includes a control unit that can acquire an image from in front of the controlled vehicle. The image covers a glare area including points at which drivers of oncoming and leading vehicles would perceive the headlamps to cause excessive glare. The image is processed to determine if at least one oncoming or leading vehicle is within the glare area. If at least one vehicle is within the glare area, the headlamp illumination range is reduced. Otherwise, the illumination range is set to full illumination range.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: August 6, 2002
    Assignee: Gentex Corporation
    Inventors: Joseph S. Stam, Jon H. Bechtel, Frederick T. Bauer
  • Patent number: 6426570
    Abstract: A d.c.-to-a.c. power converter for supplying low voltage a.c. current to a load circuit that incorporates a low voltage incandescent lamp in an automobile. The converter circuit includes first and second switches 16, 18 serially connected between a bus conductor 28 and a reference conductor 30; being connected together at a common node 42 through which the a.c. current flows and having a shared control node 38. A series circuit including capacitor 60, inductor 58 and inductor 56 is connected between common node 42 and control node 38. The voltage between the control node 38 and the common node 42 determines the conduction state of the associated switch. First and second resistors 70, 72 are serially connected between the bus and reference conductors, with their intermediate node connected to the control node. A third resistor 74 is connected between the common node and one of the bus conductor and the reference conductor. An autotransformer has one end connected to the common node.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: July 30, 2002
    Assignee: General Electric Company
    Inventor: Louis R. Nerone
  • Patent number: 6426569
    Abstract: A variable frequency pulse width modulated apparatus and method supplies variable frequency and variable duty cycle power to a load, particularly an electric load of a motor vehicle, and preferably to a filament-type lamp such as a headlight. Which one of the two frequencies are selected is based on a monitored battery parameter, such as a comparison between the current supplied to the battery by an alternator and the current drawn from the battery by a load, with a higher one of the two frequencies being selected when the input current exceeds the output current and the lower frequency being selected when the battery input current is less than the output current. The duty cycle is variably selectable with either first or second pulse width modulated frequency.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: July 30, 2002
    Assignee: Yazaki North America
    Inventors: Shigehisa Ichikawa, Kang Li
  • Patent number: 6420797
    Abstract: An electrical/electronic system architecture for a vehicle includes a plurality of regions partitioning the vehicle, with each region having a regional electrical/electronic controller (REEC) and at least one local network partitioning each region, with each local network having an electrical/electronic device. The electrical/electronic system architecture includes a global power distribution network that distributes power from a power source to the REEC within each region and a regional power distribution system that distributes the power from the REEC to the local network. The electrical/electronic system architecture also includes a global communication network that provides serial data communication between the REECs in the regions and a regional communication network communicating with the global communication network, such that the regional communication network provides data communication between the REEC and the local network within the region.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: July 16, 2002
    Inventors: Robert Edward Steele, Theodore Raymond Schmidt, Ronald P. Albanese, Christopher C. Chandler, Andrew Frank Rodondi, David Allen Robinson, Victor Mendez
  • Patent number: 6420832
    Abstract: A flasher circuit for switching incandescent lamps with field effect transistor switches is described for use on a school bus. A current sensing resistor develops an actual load current signal and a current limiting circuit which generates a signal corresponding to a predetermined limit value of load current. A control circuit turns off the field effect transistor when the actual value of load current exceeds the predetermined value. A micro controller holds the reference voltage at a higher level during the inrush current interval and switches it to a lower level during the steady state current.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: July 16, 2002
    Assignee: KDS Controls, Inc.
    Inventor: Robert C. Rabine
  • Patent number: 6417624
    Abstract: A lighting system provides an auxiliary lighting circuit for turning on an auxiliary light source in place of the discharge lamp if the abnormality in the lighting circuit is detected.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: July 9, 2002
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Masayasu Ito, Hitoshi Takeda, Soichi Yagi, Shuji Matsuura, Akihiro Mochizuki, Hiroki Ishibashi, Tomoyuki Ichikawa
  • Patent number: 6417623
    Abstract: An automotive external lighting system uses pulse width modulation to drive a single filament for turn signaling and park signaling purposes. A control circuit generates a variable brightness signal based on a predetermined brightness level, and an external lamp produces external illumination based on the brightness signal. A single wire is therefore able to electrically connect the control circuit to the external lamp. The control circuit includes a microcontroller for generating a pulse width modulated signal, and a high side driver for driving the lamp in response to the pulse width modulated signal. When the pulse width modulated signal has a duty cycle corresponding to a parking brightness level, the filament will produce less illumination than in the case of turn signaling.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: July 9, 2002
    Assignee: DaimlerChrysler Corporation
    Inventors: Philip E Chamberlain, John M Gaynier
  • Patent number: 6414437
    Abstract: In a method for controlling illumination devices of motor vehicles, wherein the illumination devices are correlated with different functional areas of a light assembly and are supplied with current, the illumination devices are cycled with a rated current and the brightness level of the illumination devices are adjusted with a pulse width modulated signal. A device for performing the method has an electrical power source and illumination devices correlated with at least two functional areas and connected to the electrical power source. Actuating elements are provided for activating the illumination devices. At least one microprocessor is provided, wherein the actuating elements are connected to the at least one microprocessor, wherein the at least one microprocessor converts signals emitted by the actuating elements into pulse width modulated signals supplied to output terminals of the at least one microprocessor.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: July 2, 2002
    Assignee: Reitter & Schefenacker GmbH & Co. KG
    Inventors: Werner Diez, Christine Weber
  • Patent number: 6411040
    Abstract: An apparatus for operating a discharge lamp from an on-board voltage source of a motor vehicle. The discharge lamp is operated at a first electrical power to produce a taillight and is operated with a second, higher power to produce a signal light.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: June 25, 2002
    Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische Gluehlampen mbH
    Inventors: Bernhard Ertl, Guenther Hirschmann, Thomas Reiners
  • Patent number: 6401020
    Abstract: Device for control of headlight range of a motor vehicle including a front axle transmitter (1) and a rear axle transmitter (2), which generate signals depending on a position of a vehicle chassis relative to a front axle and a rear axle of the vehicle, wherein the device further includes adjustment devices (14, 15), which can adjust the headlight range of the motor vehicle depending on these signals. The device further includes a speed transmitter (3) and a terrain recognition unit (24), with the terrain recognition unit (24) being connected to the front axle transmitter (1), the rear axle transmitter (2), and the speed transmitter (3).
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: June 4, 2002
    Assignee: Hella KG Hueck & Co.
    Inventor: Andreas Neumann
  • Patent number: 6396210
    Abstract: A one-piece headlight adapter, and a two-piece headlight adapter system, is used to connect the existing vehicle headlight controls and power supply with a snowplow wiring harness. An adapter only connects the controls and power supply for one headlight to the wiring harness. Two adapters, one for each headlight, create an adapter system. The adapter system allows the vehicle operator to control the snowplow headlights from the inside of the vehicle. One version of an adapter is a three-component adapter that includes one connection to the vehicle headlight, one connection to the headlight controls, and one connection to the wiring harness. Another version of the adapter is a five-component adapter that includes high and low beam connections to the vehicle headlight, high and low beam connections to the headlight controls, and one connection to the wiring harness.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: May 28, 2002
    Assignee: M.P. Menze Research & Development Inc.
    Inventor: Peter C. Menze
  • Patent number: 6392363
    Abstract: A starter for a gas discharge lamp, in particular a high-pressure gas discharge lamp for a motor vehicle headlight. The gas discharge lamp is supplied with operating power over the secondary side of a transformer. The required starting power is supplied on the primary side of the transformer and is transferred to the secondary side at the starting time. The starting voltage is generated by a cascade circuit, with the cascade circuit of capacitors and diodes provided in the starter circuit to generate the starting voltage at a charge capacitor. The starter circuit is supplied by the bridge circuit which supplies the gas discharge lamp with power for operation, and for the purpose of starting, the bridge circuit is cycled at a frequency which is much higher than the normal frequency for lamp operation. After the lamp has been started, the bridge circuit is switched to the normal frequency in lamp operation. The starter can be implemented in a two-wire concept, a three-wire concept or a four-wire concept.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: May 21, 2002
    Assignee: Robert Bosch GmbH
    Inventor: Gerhard Decker
  • Patent number: 6384538
    Abstract: Control apparatus for a light unit for vehicles, in particular motor vehicles, includes an electronic control unit for controlling the light unit, with the control unit having an I/O interface for connecting to a plurality of control and/or switching devices assigned to the light unit. The electronic control unit is arranged in a rectangularly-shaped housing which is detachably mounted in a receptacle of the light unit. A first contacting device is provided on a first side of the electronic control unit for connecting the electronic control unit to a number of electric components integrated into the light unit, and in addition a second contacting device is provided on a second side for connecting the electronic control unit to a number of additional electric components arranged near the light unit.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: May 7, 2002
    Assignee: Hella KG Hueck & Co.
    Inventors: Petrik Lange, Wilhelm Mertens, Frank Passgang, Juergen Reuter
  • Patent number: 6376992
    Abstract: A system for enabling successful use of HID lamps in aircraft, including in particular high power lamps for use as landing lights and taxi lights, utilizes a sealed beam HID lamp which during normal operation has an external temperature considerably lower than the external temperature of a quartz halogen or incandescent sealed beam lamp of equivalent light output. The lower external temperature arises in part from the use of a gas fill in the sealed beam. A detector is provided to monitor the seal integrity of the sealed beam HID lamp and further to provide a response to seal failure resulting in disablement of the lamp. Exemplary means for accomplishing seal failure detection include radioactive detection, pressure monitoring, and chemical sensing, or other means wherein detection of a failed seal is followed by an electrical output used to terminate or preclude lamp operation.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: April 23, 2002
    Assignee: Godfrey Engineering, Inc.
    Inventor: John T. Petrick
  • Patent number: 6369513
    Abstract: A vehicle lamp lighting-driving apparatus is provided, which includes: a lighting driving means to lighting-drive a lamp; a driving signal generating means to generate a pulse driving signal having a pulse with a duty factor to make a power consumption of the lamp be a rated value of the lamp; and a driving controlling means to on/off-drive the lighting driving means according to the pulse driving signal, wherein the driving signal generating means generates an auxiliary driving signal which makes the driving controlling means control the lighting driving means so that a current to flow to the lamp through the lighting driving means is limited for a definite time, until a rush current at a time of on-driving of the lighting driving means gets equal to or smaller than an allowable value, prior to the pulse driving signal at a start of lighting the lamp.
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: April 9, 2002
    Assignee: Yazaki Corporation
    Inventor: Akiyoshi Kanazawa
  • Patent number: 6369457
    Abstract: A vehicle having a central locking system for doors, tailgates or the like, as well as a device for illuminating an interior space of the vehicle, wherein the central locking system has a central control unit (1), and the central control unit (1) has an output (7) both for at least one actuating drive (2) and for the device for illuminating the interior space.
    Type: Grant
    Filed: July 3, 1999
    Date of Patent: April 9, 2002
    Assignee: Mannesmann VDO AG
    Inventors: Martin Meyer, Axel Schäfer
  • Patent number: 6366024
    Abstract: A method for providing a signal, representing the longitudinal inclination of a vehicle, for a control unit for the slip control and/or for the control of a quantity describing the yaw rate of the vehicle, measured quantities which can be acquired and processed for ascertaining a signal representing a longitudinal inclination of the vehicle, and/or the ascertained signal representing the longitudinal inclination being transmitted from a control device for the headlight-leveling control to the control unit for the slip control and/or for the control of the quantity describing the yaw rate.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: April 2, 2002
    Assignee: Robert Bosch GmbH
    Inventors: Wolf-Dieter Jonner, Reiner Folke, Elmar Mueller
  • Patent number: 6351074
    Abstract: A steady-state condition in which respective discharge lamps for main beam and for dipped beam are both turned on, a sum (P1+P2) of a value of power supplied to each discharge lamp is controlled to be smaller than a sum (P1R+P2R) of a rated power value for each discharge lamp.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: February 26, 2002
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Masayasu Ito, Hitoshi Takeda, Shuji Matsuura, Akihiro Mochizuki, Hiroki Ishibashi, Akihiro Matsumoto
  • Patent number: 6349251
    Abstract: An automatic automobile headlamp leveling device is provided for a headlamp which is driven by an actuator so that a light axis of the headlamp can be tilted up or down relative to a vehicle body. A vehicle speed detection sensor is provided for detecting the vehicle speed, a pitch angle detection sensor is provided for detecting a pitch angle of the vehicle, a storage section is provided for storing a plurality of pitch angle data of the vehicle detected by the pitch angle detection sensor, and a control section is provided for controlling the driving of the actuators. The control section controls the driving of the actuators based on the pitch angle data so that the light axes of the headlamps always stay in a certain tilted state relative to the surface of a road.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: February 19, 2002
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Atsushi Toda, Hideaki Takeuchi
  • Patent number: 6304035
    Abstract: Device for automatically operating the lights of a motor vehicle, comprising a central information-processing unit (1) for controlling on/off switching of the lights (7) of the vehicle, connected at input to a sensor (3) which senses the brightness in the vehicle's surroundings, a sensor (4) for sensing the speed of travel of the vehicle and a time base (5). This information-processing unit (1) is designed to compare various items of information about the brightness wits various thresholds so as to trigger the switching on/off of the lights of the vehicle according to the brightness conditions that this vehicle encounters.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: October 16, 2001
    Assignees: Automobiles Peugeot, Automobiles Citroen
    Inventor: Siri Yuth Loth
  • Patent number: 6300718
    Abstract: A headlight includes a beam-type switching device equipped with an electrical power limiting device. The power limiting device can lower operational electrical power after a certain time interval has passed following initial application of operational electrical power to the switching device. The switching device can include an electromagnetic solenoid 5a with a coil. Sufficient electrical current can be applied to the switching device for an initial period when electromagnetic solenoid 5a requires comparatively high operational electrical power, and an electrical power limiting device can lower the electrical power applied to the switching device after a short time period. The size and cost of the switching device can be reduced, overheating can be avoided, and the longevity and reliability of the device can be increased.
    Type: Grant
    Filed: August 26, 1999
    Date of Patent: October 9, 2001
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Hitoshi Taniuchi, Hiroshi Iwasaki, Masahito Okamoto
  • Publication number: 20010027365
    Abstract: An automatic leveling system has a headlamps optical axes L adapted to tilt vertically relative to a body of a vehicle by driving actuators 10, a control part 16 for controlling the driving of the actuators 10, a vehicle speed sensor 12, a vehicle height sensor 14 and a storage part 20 for storing pitch angle data detected by the vehicle height sensor 14. The control part 16 controls the actuators 10 based on a detected pitch angle such that the optical axes L of the headlamps are inclined to a predetermined angle relative to the road surface.
    Type: Application
    Filed: December 21, 2000
    Publication date: October 4, 2001
    Inventors: Atsushi Tode, Hideaki Takeuchi
  • Publication number: 20010024064
    Abstract: In a vehicle-mounted electrical component, potentially redundant resistances 4d, 4h, 4i and the corresponding voltage detecting circuit 5d, or the terminals 21, 22, 23, 24 and the switch for turning the switch interposed between the terminals 21 and 22, and the terminals 23 and 24 ON and OFF are exposed on the external surface of the main body so that setting according to the specifications can be performed outside the main body.
    Type: Application
    Filed: January 30, 2001
    Publication date: September 27, 2001
    Applicant: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventor: Hiroaki Masaoka
  • Patent number: 6293686
    Abstract: The lighting device for a vehicle includes running direction detect means 3 for detecting the vehicle running direction or the vehicle steering angle and vehicle speed detect means 4 for detecting the vehicle speed. An illumination control means 5 specifies the turn-on and turn-off of a plurality of lamps in accordance with detect signals output from the means 3 and 4, thereby changing the combinations of the illumination ranges of the lamps.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: September 25, 2001
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Toshihisa Hayami, Hiroyuki Ishida, Hideki Uchida, Atsushi Sugimoto
  • Patent number: 6288492
    Abstract: A system for controlling the turning on of vehicle headlamps 703 of a vehicle having a dome light 50 which provides a variable dome light intensity includes a sensor 40, a memory 820, a comparator 810, and a circuit 18. The sensor 40 senses the intensity of ambient light and provides a first signal &agr; indicative of the intensity of the ambient light. The memory 820 stores a light value &sgr; corresponding to the intensity of the dome light 50. The comparator 810 receives the first signal &agr; a and compares the intensity of the ambient light with the stored light value &sgr;. The comparator 810 provides an output second signal &bgr; when the first signal is at or below the stored light value &sgr;. The circuit 18 turns on the vehicle headlamps 703 when the circuit 18 receives the output second signal &bgr;.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: September 11, 2001
    Assignee: TRW Inc.
    Inventor: George B. Wolfe
  • Publication number: 20010019225
    Abstract: An autoleveling device comprises a pair of left and right headlamps in which optical axes L are tilted in a vertical direction with respect to a body by driving operations of respective motors 10 (10L, 10R), single control means 16 for controlling the driving operations of the left and right motors 10 at the same time, a vehicle speed sensor 12, a height sensor 14 and a storage section 20 for storing pitch angle data detected by the height sensor 14, the control means 16 controlling the respective motors 10 such that the respective optical axes L have a predetermined inclination with respect to a road based on the pitch angle data thus detected, wherein the motors are driven only if a difference between the detected pitch angle and the pitch angle used for the last driving control of the motor is equal to or more than a predetermined reference value which is more than a pitch angle equivalent to a hysteresis width of each of the left and right motor driving circuits (|&thgr;2−&thgr;1|>&
    Type: Application
    Filed: January 5, 2001
    Publication date: September 6, 2001
    Inventors: Atsushi Toda, Hideaki Takeuchi
  • Patent number: 6281632
    Abstract: Continuously variable headlamps offer greater flexibility for roadway illumination but offer challenges in automatic control design. Each continuously variable headlamp has an effective illumination range varied by changing at least one parameter from a set including horizontal direction aimed, vertical direction aimed, and intensity emitted. A system for automatically controlling continuously variable headlamps on a controlled vehicle includes an imaging system capable of determining lateral and elevational locations of headlamps from oncoming vehicles and tail lamps from leading vehicles. The system also includes a control unit that can acquire an image from in front of the controlled vehicle. The image covers a glare area including points at which drivers of oncoming and leading vehicles would perceive the headlamps to cause excessive glare. The image is processed to determine if at least one oncoming or leading is within the glare area.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: August 28, 2001
    Assignee: Gentex Corporation
    Inventors: Joseph S. Stam, Jon H. Bechtel, Frederick T. Bauer
  • Patent number: 6281631
    Abstract: A vehicle light system circuit includes a PROFET to automatically detect the presence of a faulty light source and switch to an unaffected light source. The system also adjusts the brightness of the unaffected light source by adjusting a PWM signal applied thereto to approximate the brightness of the unaffected light source.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: August 28, 2001
    Assignee: Siemens Automotive Corporation
    Inventors: Thomas Scott Schaffer, James Anthony Poirier
  • Patent number: 6268663
    Abstract: This invention proposes a control device for an electric source supply, providing a function which prevents battery death of a vehicle. A lamp main relay turns a lamp main relay 3 off in case an ignition switch 1a is off and also when a door state is not changed over time T1 which is predetermined with a timer Tm1, and cuts off an electric source supply to an interior dome lamp 5, door lamps 6a, 6b, 6c of D-seat, P-seat, R-seat in order to prevent battery death. Further, a door/interior dome lamp control part 2c turns the interior dome lamp 5 and the door lamps in response to opened-doors off when doors are not closed more than time T2 which is predetermined with timer means Tm2 in order to prevent battery death. A warning signal may be generated before the control for preventing battery death or during the control mode for preventing battery death.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: July 31, 2001
    Assignee: Furukawa Electric., Ltd.
    Inventors: Ken Abe, Shigeki Itabashi, Hiroshi Tutumi, Masaaki Imamura
  • Patent number: 6265829
    Abstract: An auxiliary multiplex vehicle light harness which includes a headlight connector to connect to a headlight, a power connector to connect to a headlight plug, an auxiliary light connector to connect to an auxiliary light, and a microprocessor to control the auxiliary lights. The auxiliary lights may also include a microprocessor to control one or more operations within the auxiliary lights.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: July 24, 2001
    Assignee: The Louis Berkman Company
    Inventor: Roman Perdec
  • Patent number: 6262537
    Abstract: A lamp circuit for lighting a head lamp and a high beam lamp of an automobile is provided. A first lamp circuit includes a common circuit, an ordinary lighting circuit, and a daylight running lighting circuit. A second lamp circuit is connected to the first lamp circuit. A portion of the common circuit is connected to positive and negative sides of the head lamp and the high beam lamp on one side of the automobile. When the automobile is configured for ordinary lighting conditions, a remaining portion of the common circuit is connected to circuit elements for ordinary lighting and the second lamp circuit, the ordinary lighting circuit connects the common circuit, as connected to the positive side of the high beam lamp, with the circuit elements for ordinary lighting, and the daylight running lighting circuit does not form any circuit.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: July 17, 2001
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventor: Shinichi Matsumoto
  • Patent number: RE37290
    Abstract: The present invention is a device which installed in a vehicle that enables a vehicle trunk to be opened from the interior of the trunk and enables at least one of the tail lights to blink. The present invention can be retrofit to existing vehicles by connecting a prepared box and wiring harness to the vehicle power supply, trunk release solenoid, and taillights. The present invention has a ON/OFF switch which enables the circuit controlling the blinking of at least one tail light. A second switch activates the trunk release opening solenoid causing the trunk lock retract opening the trunk. The present invention is mounted in such a way as to be operable by an individual confined to the trunk and be concealed from the casual observer.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: July 24, 2001
    Inventor: Ellis Morton David
  • Patent number: RE37677
    Abstract: The invention consists of an electrical circuit for a vehicle headlight system whereby the conventional parallel circuit connection of headlights is automatically converted into a series circuit connection under conditions appropriate for daytime running lights, whereby the light output of the headlights is reduced as compared to that in conventional headlight circuit mode, and a method for interconnecting such circuit with conventional headlight systems.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: April 30, 2002
    Assignee: See-Me Lights Corporation
    Inventor: Tsutomu Irie