In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7295915 | Method for compensating for accessory loading An internal combustion engine includes an advanced vehicle system controller (VSC) that calculates a total power demand to meet a driver wheel power demand plus any accessory loads and independently schedules an engine speed and load operating point to meet the tota... | 11/13/2007 |
| 7276806 | System and method for boosting torque output of a drive train An engine speed detector detects an engine speed of an engine having a baseline torque versus engine speed curve. A torque sensor detects an engine torque of the engine. A data processor determines if the detected engine speed is within a first speed range and if th... | 10/02/2007 |
| 7267090 | Method of starting a hybrid vehicle A method of performing a first start of an internal combustion engine of a hybrid electro-mechanical vehicle includes activating an auxiliary power module prior to the engine starting to direct power stored in a high voltage battery (used for powering the motor/gene... | 09/11/2007 |
| 7165523 | System, in particular for motor vehicle starting a heat engine and for charging an electric circuit System, especially for a motor vehicle, able, on the one hand, to start up an internal-combustion engine and, on the other hand, to charge an electrical circuit, including a main electrical machine able to operate, on the one hand, as a generator and, on the other h... | 01/23/2007 |
| 7135784 | Fast torque control of a belted alternator starter A belted-alternator starter system that continuously provides pre-flux when the vehicle ignition is on and the engine is off to provide a faster torque response when the engine is turned on. The alternator/starter device operates as an alternator for providing elect... | 11/14/2006 |
| 7122914 | System for starting an electric drive machine engine A method for starting an engine of an electric drive machine may include the method steps of introducing current to an electric motor system from a battery and receiving the current into at least one coil on an electric motor of the electric motor system. The electr... | 10/17/2006 |
| 7109596 | Vehicle drive system with generator control A vehicle drive system with a vehicle electric power generation control device is configured to prevent a drive belt between an engine and generator from slipping without causing the output of the generator from declining. When the target load torque Tg* of the gene... | 09/19/2006 |
| 7013213 | Method for controlling starting of an engine in a hybrid electric vehicle powertrain A method for controlling starting of an internal combustion engine in a hybrid electric vehicle powertrain having multiple power flow paths to vehicle traction wheels from the engine and from an electric motor. A smoothness factor is calculated to determine how smoo... | 03/14/2006 |
| 6825576 | Method and apparatus for preventing stall in a starter/alternator equipped I.C. engine system A method and apparatus for preserving a starter/alternator in an I.C. engine system installation from repeated operation in the starter mode by detecting and preventing an I.C. engine stall by disabling the generator function of the starter/alternator. The system de... | 11/30/2004 |
| 6809428 | Overheat protection of an electrical component of an I.C. engine A system and method for protecting a component of an I.C. engine system by controlling a starter/alternator in response to the component's temperature. The system describes a method of comparing the temperature of the component to a predetermined threshold temperatu... | 10/26/2004 |
| 6800953 | Engine starting apparatus and method for controlling the same A starting apparatus for an internal combustion engine comprises a starter/alternator assembly operatively coupled to the engine and capable of being operated in a starter mode for starting the engine and in a generator mode for generating electric power when driven... | 10/05/2004 |
| 6744146 | Electrical circuit for providing a reduced average voltage Systems and methods of the invention may utilize integrated starter-alternator (ISA) electronics to drive a conventional DC starter coupled to a start-stop ISA system providing a voltage higher than that at which the starter is rated. The DC starter may cold crank a... | 06/01/2004 |
| 6597071 | Prime mover starting control apparatus The impossibility of starting a starter motor by using a non-contact type position sensor for deciding an engine start is eliminated. An engine starting apparatus includes a non-contact type position sensor for detecting the range position of a drive mech... | 07/22/2003 |
| 6018199 | Starter for engine equipped with motor generator A starter for an engine equipped with a motor generator achieves lower cost and reduced sizes and capacities of circuit elements by reducing the assist load on the motor generator: it is provided with a motor generator (2) and a starting motor (10) connec... | 01/25/2000 |
| 5982045 | Hybrid vehicle drive system adapted to prevent concurrent mode change and transmission shifting or torque distribution ratio change A hybrid drive system including an engine and an electric motor at least one of which is operated as drive power source to drive a motor vehicle in a selected one of different operation modes. The system is adapted to prevent concurrent operations to chan... | 11/09/1999 |
| 5819695 | Cut-off device for engine starting systems A cut-off device for engine starting systems is disclosed. The cut-off device has a cut-off relay unit and prevents electric current of a storage battery from being applied to the magnetic switch of an activated starter motor, thus positively preventing t... | 10/13/1998 |
| 5287831 | Vehicle starter and electrical system protection A protective control box is disclosed for providing protection for a starter system and other components of equipment, such as vehicles, incorporating internal combustion engines. Improved starter protection apparatus and circuitry using frequency to volt... | 02/22/1994 |
| 4883028 | Foot controlling engine start, stop and brake system A foot controlling engine start, stop and brake system, characterized by a control circuit arranged among an ignition switch, a starter motor, a brake, an accelerator and a generator for controlling automatic stop of the starter motor by feeding back the ... | 11/28/1989 |
| 4653442 | Engine starting cycle and overcrank control system An engine starting cycle cranking and rest period timing circuit and an overcrank shut down circuit includes a 24 stage frequency divider connected to starting motor relays, and an engine starter disconnect circuit and a start signal circuit functioning t... | 03/31/1987 |
| 4622930 | Engine starter protecting device An engine starter protecting device which prevents engagement of the starter's pinion with the ring gear of the engine, even when the engine is rotating. Sensors detect when the gear shift lever is in the neutral position, when the frequency of the igniti... | 11/18/1986 |
| 4604565 | Microcomputer-controlled DC three-wire circuit for vehicle A D.C. charging and starter circuit for a vehicle includes a microcomputer which monitors the state of battery switch units, a pair of charging generators and a starter switch, and operates to control various switching elements and the like to prevent acc... | 08/05/1986 |
| 4570583 | Engine starter protecting device An engine starter protecting device which prevents engagement of the starter's pinion with the ring gear of the engine, even when the engine is rotating. Sensors detect when the gear shift lever is in the neutral position, when the frequency of the igniti... | 02/18/1986 |
| 4490620 | Engine starter protective and control module and system An engine starter protective and control module (PCM) and system having a 1/2 second start speed delay timer (DT) and a 30-second crank timer (CT) that are started when a start switch (SS) is closed to control a logic circuit (L) that operates a coil driv... | 12/25/1984 |
| 4209816 | Protective control for vehicle starter and electrical systems A protective control for the starter and electrical systems of a motor vehicle, including a main relay for controlling the electrical system, and a starter relay for controlling the starter system. Electronic logic is provided for the electrical system wh... | 06/24/1980 |
| 4198945 | Internal combustion engine starter disconnect system When the starter motor which can be coupled to an internal combustion engine, typically an automotive engine, has accomplished its function and the automotive engine started, it is disconnected by a switch which is controlled from a sensing circuit connec... | 04/22/1980 |
| 4104534 | Starter motor control circuit for an internal combustion engine A starter motor control circuit for an engine includes an input circuit which is controlled by the ignition contact breaker of the engine, the capacitor charging each time the contact breaker opens and discharging relatively slowly when it is closed. The ... | 08/01/1978 |
| 4080537 | Remote starting system for a combustion engine A system is disclosed for enabling a user to start an engine from a remote location, utilizing a receiver for receiving a command signal from a remote transmitter operated by the user, the receiver generating signals to control operation of the starting s... | 03/21/1978 |
| 4070585 | Starter motor lockout system An electronic lockout system for the starter motor of an internal combustion engine includes means for operating the starter motor only if the engine flywheel is stationary. The system also includes means for automatically deenergizing the starter motor w... | 01/24/1978 |
| 4045062 | Electric cranking motor automatic disconnect and lockout circuit The output signal produced by a two input electrical circuit element of the type which produces opposite polarity output signals upon the application of the same polarity input signal to respective ones of the input terminals is applied to the control ele... | 08/30/1977 |