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| Number | Title | Issue Date |
| 8164343 | Method and apparatus for measuring a parameter of a vehicle electrical system An automotive vehicle electrical system tester is provided for testing an electrical system having wiring which couple a load to a battery. The automotive vehicle electrical system tester is configured to measure an electrical parameter of the wiring and includes a ... | 04/24/2012 |
| 8115493 | Trainline integrity locomotive test device A trainline integrity locomotive test device is provided that is configured to provide conventionally provided End-Of-Train (EOT) functionality required for a single locomotive test as well as functionality necessary for troubleshooting electrical problems in trainl... | 02/14/2012 |
| 8054083 | Method and apparatus for diagnosing a motor control circuit in a hybrid vehicle A hybrid electric vehicle (HEV) has an algorithm for executing a method for diagnosing a high-voltage (HV) fault condition aboard the HEV. The HEV includes a high-voltage (HV) battery, an auxiliary power module (APM), a power inverter module (PIM), and a three-phase... | 11/08/2011 |
| 7924019 | System and method for fault isolation and leakage current detection An inverter system for a vehicle including a housing, a primary stage, a secondary stage and a fault detection circuit is provided. The primary stage is configured to receive a first voltage signal from an energy power source to generate a second voltage signal. The... | 04/12/2011 |
| 7876104 | Electric interface arrangement for the transmission of electrical energy between a vehicle and an operating implement that can be coupled to the vehicle The invention relates to an electric interface device (11) for transmitting electric power between a vehicle and an implement that can be coupled to said vehicle (42), which is especially an agricultural or industrial utility vehicle. The inventive ele... | 01/25/2011 |
| 7852089 | Ground-fault detection system for vehicles with a high-voltage power net A ground-fault detection system and method for detecting loss of electrical isolation in a vehicle or other system that uses a high voltage (HV) power net. The loss of electrical isolation may be determined by charging HV capacitors, then connecting them at differen... | 12/14/2010 |
| 7710121 | Electrical connector integrity tester This invention provides an electric fuel pump tester that allows a technician to simulate the real-life operation of the electrical system of the vehicle, i.e., when the fuel pump is installed. The present invention provides a tester that includes a load that is sim... | 05/04/2010 |
| 7671601 | Abnormal condition detecting system for engine In an abnormal condition detecting system, an electronic control unit determines that a condition for carrying out a process for detecting an abnormal condition of an electric motor and/or electric supply lines for the motor is satisfied, when a position of a contro... | 03/02/2010 |
| 7649360 | Apparatus and systems for common mode voltage-based AC fault detection, verification and/or identification Apparatus for AC fault (ACF) detection are provided. In addition, apparatus for AC fault (ACF) detection and verification are provided. In addition, apparatus for identification of a module which is the cause of an AC fault (ACF) are provided. In one implementation,... | 01/19/2010 |
| 7626395 | Hybrid vehicle testing system and method In a hybrid vehicle, first, an engine is locked by an engine shaft locking mechanism. A first motor is connected to a first inverter circuit and a second motor is connected to a second inverter circuit and then both the motors are operated, and the output characteri... | 12/01/2009 |
| 7532010 | Sensing circuit and method for diagnosing open and short circuit conditions of a sensor A sensing circuit for detecting open and short circuit conditions in sensors is provided. The sensing circuit includes switching circuitry, a voltage supply, a test capacitor, and an operational amplifier. The switching circuitry is electrically coupled to the volta... | 05/12/2009 |
| 7385384 | Diagnosis method for an antenna connection A method for testing a reliable connection of an antenna includes a coil (L) or something similar connected to a reference potential on one side and to the output of an amplifier on the other side, a first capacitor (C2) arranged in a parallel position to the... | 06/10/2008 |
| 7367321 | Erroneous connection detecting method of ignition devices and apparatus of the same A method and an apparatus detect an erroneous connection between a plurality of ignition devices and a fuel injection control device. A first time interval is measured from an input of an ignition signal for a certain cylinder to an input of the next ignition signal... | 05/06/2008 |
| 7368919 | Wireless portable automated harness scanner system and method therefor A method for testing an installed wiring harness is provided. The method comprises providing a signal source testing module at a first node in the wiring harness and a measurement termination testing module at a second node in the wiring harness. A central managemen... | 05/06/2008 |
| 7358744 | Method for testing the serviceability of transducers The invention relates to a two-wire transducer in automation engineering that outputs a measurement signal as an injected current. For the method to test the serviceability, it is proposed to increase the DC loop current (IS), independently of the measure... | 04/15/2008 |
| 7354022 | Device for monitoring tiltable flaps on aircraft wings A device for monitoring tiltable flaps on aircraft wings including rotary sensors at the rotary axis of the flap and associated with each actuating element. A rotation sensor is connected to the actuating elements by a spring band. The band is a coupled for angle tr... | 04/08/2008 |
| 7352188 | Electrically operated vehicle abnormality judging device An electrically operated vehicle abnormality judging device. The invention has an electrically operated machine, a driving signal generation processing section for generating a driving signal by receiving a command value, an inverter for receiving the driving signal... | 04/01/2008 |
| 7340365 | Method and apparatus for verifying the operation of a plurality of test system instruments In a method for verifying the operation of a plurality of test system instruments, a harness cable is electrically coupled to a plurality of test signal ports on the plurality of test system instruments. A first plurality of test measurements are then initiated via ... | 03/04/2008 |
| 7336082 | Vehicle circuit tester A vehicle circuit tester for electrically testing the circuit system of a trailer. The tester can connect to a variety of types of trailers for the purpose of analyzing or monitoring the trailer's circuit system. The tester includes indicators that indicate continui... | 02/26/2008 |
| 7319304 | Shunt connection to a PCB of an energy management system employed in an automotive vehicle A method of coupling a shunt to a printed circuit board (PCB) of an energy management system is provided. The method includes coupling flexible electrical connectors to the shunt and soldering the flexible electrical connectors to connection points on the PCB of the... | 01/15/2008 |
| 7312595 | Motor control apparatus Presence/absence of a failure in a feedback control system of a motor is monitored. When a failure is detected in the feedback control system, the motor is driven by switching to an open-loop control. During the open-loop control, the motor is rotated by sequentiall... | 12/25/2007 |
| 7312592 | Adaptive system for optimizing excitation current waveform profiles for electric motors An adaptive control system for an electric motor has energization circuitry connected to phase windings of the motor for energization thereof and a controller for generating a control signal corresponding to a profile of an excitation current. The control signal is ... | 12/25/2007 |
| 7310049 | Status indicator A status indicator indicates an operating state, including an electrical malfunction, of an electrical load that is located and controlled from locations remote from a monitoring location. ... | 12/18/2007 |
| 7295936 | Electronic battery tester with relative test output An electronic battery tester for testing a storage battery determines a condition of the battery. The condition is a relative condition and is a function of a dynamic parameter of the battery and an empirical input variable. ... | 11/13/2007 |
| 7282921 | System, apparatus and method for detection of electrical faults System for monitoring an electrical system of a facility includes one or more local sensing devices, each of which is adapted to be connected to the electrical system of the facility in proximity to a respective load that receives power from the electrical system so... | 10/16/2007 |
| 7279862 | Fault handling of inverter driven PM motor drives An apparatus includes a multi-phase inverter, a fault detector to indicate a detection of a fault, a sensor to provide a speed signal indicative of whether a speed of a PM motor is greater than a transition speed, and a controller. The controller is operable to appl... | 10/09/2007 |
| 7276815 | Power management system A method of managing power resources for an electrical system of a vehicle may include identifying enabled power sources from among a plurality of power sources in electrical communication with the electrical system and calculating a threshold power value for the en... | 10/02/2007 |
| 7271714 | Push button control device This invention relates to a two stage push button control device, in which the push button (9) has at least one of its inputs (A, C) connected to the output of a processing organ (15) and its two outputs (B, D) connected to two inputs (E1, E2... | 09/18/2007 |
| 7256564 | System and method for attenuating noise associated with a back electromotive force signal in a motor A method for attenuating switching noise from back electromotive force (EMF) observations in a motor is described. The motor is controlled by pulse width modulation (PWM) signals provided at a PWM frequency. The method comprises sampling back EMF observed in the mot... | 08/14/2007 |
| 7245098 | Brushless dc motor having a motor-locked protective circuit A brushless dc motor includes a PWM drive IC member, a Hall IC member, a PWM converter circuit and a Rotational Detection (RD) signal line. The PWM drive IC member electrically connects with the Hall IC member, the PWM drive IC member further includes a pin electric... | 07/17/2007 |
| 7233151 | Apparatus and method for diagnosing failure of fuel level sensors A method of diagnosing failure of fuel level sensors includes a first measuring step of measuring voltages from first and second failure detection terminals; if the voltage is higher than a reference, diagnosing the voltage as “high,” and if the voltage is lower... | 06/19/2007 |
| 7228461 | System, method, and user interface for acceptance testing Certain exemplary embodiments provide a method comprising automatically enforcing user compliance with a plurality of predetermined steps of a computer-assisted verification test of a safety feature for a machine system; inducing an error condition in the machine sy... | 06/05/2007 |
| 7205739 | System and method for attenuating noise associated with a back electromotive force signal in a motor A method for attenuating switching noise from back electromotive force (EMF) observations in a motor is described. The motor is controlled by pulse width modulation (PWM) signals provided at a PWM frequency. The method comprises sampling back EMF observed in the mot... | 04/17/2007 |
| 7202622 | Method for controlling an electric motor to reduce EMI A method for reducing EMI emissions in the control of an electric motor supplied by a switching inverter fed by a DC bus comprising controlling a phase advance of a conduction angle period during which a phase of the motor is fed power by the inverter to control the... | 04/10/2007 |
| 7200510 | Measurement control apparatus including interface circuits A measurement control apparatus designed to automatically select an interface circuit compatible with a measurement controlled object without error. A measurement control processor outputs interface setting data for setting one interface circuit compatible with the ... | 04/03/2007 |
| 7191040 | Handheld computer based system for collection, display and analysis of engine/vehicle data A novel and improved engine data system for collecting, displaying and analyzing engine/vehicle data is provided. The system have advantageously results in a more effective, convenient, portable and low cost method of monitoring and processing vehicle data. The vehi... | 03/13/2007 |
| 7188010 | Device and method for converting a diagnostic interface to SPI standard A device to convert a diagnostic interface to standard SPI, which includes an electronic unit having a data input, a data output, a synchronization input, a clock input, and a register, and a buffer unit having a signal input, a signal output and an activation input... | 03/06/2007 |
| 7184899 | Energizable electrical test device for measuring current and resistance of an electrical circuit Provided is an electrical test device having multi-meter functionality and being adapted to provide current sourcing to an electrical system for selective measurement of a plurality of parameters. The electrical test device comprises a conductor probe element, a pow... | 02/27/2007 |
| 7180256 | Electronically controlled power steering system for vehicles and method and system for motor control A power steering device capable of obtaining a high rotary speed in the medium low torque range of an electric motor without incurring a drastic increase in manufacturing cost. The power steering device generates an auxiliary steering power by oil pressure that is g... | 02/20/2007 |
| 7173347 | Method and apparatus for driving and controlling on-vehicle loads In an apparatus for driving and controlling plural on-vehicle electrical loads, an on-vehicle power supply generates power to be supplied the loads each having a priority. A power calculating device calculates a current available amount of the power to be supplied f... | 02/06/2007 |
