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| Number | Title | Issue Date |
| 7363175 | Query based electronic battery tester An electronic battery tester for testing a storage battery provides a test output indicative of a condition of the battery. Electronic measurement circuitry provides a measurement output related to a condition of the battery. The battery condition is determined base... | 04/22/2008 |
| 7358923 | Enhanced magnetic field communication system Devices and methods are provided to enhance magnetic field communication. One aspect of the present subject matter relates to a method for transmitting and receiving signals using an antenna element electrically connected to a driver and an amplifier. According to v... | 04/15/2008 |
| 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 |
| 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 |
| 7246015 | Alternator tester An alternator tester is provided for testing an alternator of a vehicle while the alternator is coupled to the vehicle. A sensor is configured to couple to the vehicle and sense a signal related to operation of the alternator. A memory contains data related to opera... | 07/17/2007 |
| 7208914 | Apparatus and method for predicting the remaining discharge time of a battery A method and apparatus for predicting the remaining discharge time of a battery are provided. The method includes measuring a dynamic parameter of the battery, obtaining a discharge current of the battery, measuring a voltage of the battery and obtaining a temperatu... | 04/24/2007 |
| 7154276 | Method and apparatus for measuring a parameter of a vehicle electrical system An apparatus for measuring electrical parameters for an electrical system measures a first and second parameters of the electrical system between connections to the electrical system. A processor determines a third electrical parameter of the electrical system as a ... | 12/26/2006 |
| 7126341 | Automotive vehicle electrical system diagnostic device An automotive vehicle electrical system diagnostic apparatus includes first and second electrical connections configured to electrically couple to an electrical system of an automotive vehicle which includes a battery. Digital samples are obtained during operation o... | 10/24/2006 |
| 7119686 | Theft prevention device for automotive vehicle service centers An apparatus and method for preventing theft in automotive vehicle service centers. A transmitter transmits a wireless security signal which defines a perimeter. At least one portable tool for use in automotive vehicle service centers includes a receiver configured ... | 10/10/2006 |
| 7116109 | Apparatus and method for simulating a battery tester with a fixed resistance load A method and apparatus for simulating a battery tester with a fixed resistance load, such as a widely used Japanese load tester that rates the strength of Japanese batteries that are categorized under the Japanese Industrial Standard (JIS), are provided. This invent... | 10/03/2006 |
| 7106070 | Broad-band low-inductance cables for making Kelvin connections to electrochemical cells and batteries A broad-band technique for reducing the distributed inductance of a four-conductor Kelvin cable is disclosed. A special inductance-canceling cable section is connected in tandem with the cable section contacting the cell/battery. Connections between the two cable se... | 09/12/2006 |
| 7058525 | Battery test module A storage battery includes a battery housing and a plurality of electrochemical cells in the battery housing electrically connected in series to a positive terminal of the battery and a negative terminal of the battery. A first connection is coupled to the positive ... | 06/06/2006 |
| 7039533 | Battery test module A storage battery includes a battery housing and a plurality of electrochemical cells in the battery housing electrically connected to terminals of the battery. A battery test module is mounted to the battery housing and electrically coupled to the terminals through... | 05/02/2006 |
| 7034541 | Query based electronic battery tester An electronic battery tester for testing a storage battery provides a test output indicative of a condition of the battery. Electronic measurement circuitry provides a measurement output related to a condition of the battery. The battery condition is determined base... | 04/25/2006 |
| 7015674 | Booster pack with storage capacitor A jump-start booster pack for starting a vehicle having a depleted vehicle battery is provided. The jump-start booster pack includes a positive connector that can couple to a positive terminal of the vehicle battery and a negative connector that can couple to a nega... | 03/21/2006 |
| 7012433 | Battery tester upgrade using software key An electronic battery tester, comprising first and second connectors configured to electrically couple to terminals of the battery, a microprocessor configured to test the battery using the first and second connectors, a memory containing a set of locked instruction... | 03/14/2006 |
| 7003411 | Electronic battery tester with network communication An electronic battery tester for testing a storage battery includes test circuitry configured to provide a battery test output related to a condition of the battery. A memory stores a battery tester address of the battery tester, and communication circuitry transmit... | 02/21/2006 |
| 7003410 | 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. ... | 02/21/2006 |
| 6998847 | Electronic battery tester with data bus for removable module An electronic battery tester is provided for testing storage batteries. Battery test circuitry is configured to couple to the storage battery and measure a condition of the battery. A removable module is configured to couple to the battery tester to add increased fu... | 02/14/2006 |
| 6967484 | Electronic battery tester with automotive scan tool communication An electronic battery tester includes battery test circuitry configured to couple to a battery. A databus is configured to exchange data with external circuitry. ... | 11/22/2005 |
| 6941234 | Query based electronic battery tester An electronic battery tester for testing a storage battery provides a test output indicative of a condition of the battery. Electronic measurement circuitry provides a measurement output related to a condition of the battery. The battery condition is determined base... | 09/06/2005 |
| 6933727 | Electronic battery tester cable A cable for use with an electronic battery tester includes first and second electrical connections configured to couple to terminals of a battery. A memory is configured to store digital data. Electrical terminals are configured to couple the cable to the electronic... | 08/23/2005 |
| 6930485 | Electronic battery tester with battery failure temperature determination A method and apparatus for testing a storage battery is provided that generates a temperature at which the battery will fail to meet performance criteria. The use of a temperature-based system to rate battery performance provides a clearer understanding to those not... | 08/16/2005 |
| 6919725 | Electronic battery tester/charger with integrated battery cell temperature measurement device An electronic battery tester for testing a storage battery that includes a battery housing with a plurality of electrochemical cells electrically connected to terminals of the battery is provided. The battery tester includes positive and negative connectors that can... | 07/19/2005 |
| 6913483 | Cable for electronic battery tester A battery tester cable for coupling an electronic battery tester to a battery includes first clamp and second clamps to provide a connections to terminals of the battery. Cables extend from the clamps. A moveable cable holding device can be positioned along a length... | 07/05/2005 |
| 6914413 | Alternator tester with encoded output An alternator tester includes an alternator output measurement circuit configured to measure an electrical output of an alternator. A microprocessor determines a alternator condition as a function of the electrical output. The microprocessor encrypts information and... | 07/05/2005 |
| 6909287 | Energy management system for automotive vehicle A battery monitor is provided for use with a battery of an automotive vehicle. The battery monitor can provide real time battery condition measurements and can selectively control the charging of the battery through an alternator of the vehicle based upon the measur... | 06/21/2005 |
| 6906522 | Battery tester with battery replacement output An electronic battery tester for testing a storage battery. The battery tester provides a replacement battery output as a function of battery environment information and battery replacement information. ... | 06/14/2005 |
| 6906523 | Method and apparatus for testing cells and batteries embedded in series/parallel systems A “three-point” measurement technique effectively removes system effects to determine impedance, admittance, resistance, or conductance of an individual cell, battery, or interconnecting conductor embedded in a series or series-parallel electrochemical battery o... | 06/14/2005 |
| 5883510 | Tachometer system picking up ignition signals from vehicle ground A ground pick-up tachometer for detecting a rotational speed of an engine in a vehicle includes a probe arranged for connection to a vehicular ground to detect signals emitted from an ignition system of the engine. A tachometer circuit is operatively conn... | 03/16/1999 |
| 5410253 | Method of indicating combustion in an internal combustion engine Absolute engine position sensing is provided by monitoring the temporal relationship of energization of multiple spark plugs sharing a common source of drive energy in a direct ignition application. The spark plugs are connected across the source with opp... | 04/25/1995 |
| 5091695 | Electronic meter for determining engine speed in distributorless ignition system engines and conventional four stroke engines An electronic meter for testing engine parameters includes a slide switch and related circuitry for detecting, scaling and displaying the correct value of engine speed for both a conventional four stroke engine and a DIS four stroke engine, as well as for... | 02/25/1992 |
| 5066910 | Rotational speed detector for an internal combustion engine comprising a waveform processor for eliminating unwanted pulses A rotational speed detector for an internal combustion engine comprises a waveform processor for eliminating pulses generated within a predetermined period of time after a certain pulse appears and a measuring circuit for measuring a rotational speed base... | 11/19/1991 |
| 4608954 | Input circuit for an electronic vehicle speed control unit An improved input circuit for an electronic vehicle speed control unit is disclosed. An ignition current sensor coil is adapted to have a voltage differential signal induced therein each time an ignition pulse is generated by the vehicle engine. Electrica... | 09/02/1986 |
| 4101859 | Magnetic pick up for use with electronic ignition systems An improved automotive ignition analyzer is provided for use with electronic ignition systems. A quadrature field magnetic pickup is utilized to detect signals in the secondary circuit of the ignition system. An adaptor including a voltage clamp is connec... | 07/18/1978 |
| 3963987 | Method and apparatus for digital calculation of rotational speed of an internal combustion engine A method and apparatus for determining the rotational speed of an engine, using electrical pulses produced with revolving parts of the engine, including the use of a number of series of transducers or pickups producing numbers of asynchronous pulses, diff... | 06/15/1976 |
| 3942113 | Remote engine speed indicator system A system for indicating engine speed without physically contacting the engine, including a tachometer comprising an inductive loop which may be buried in the ground and connected to an electrical amplifying system which picks up very low frequency radio f... | 03/02/1976 |
