...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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 |
| 8113309 | Method for operating a drivetrain A method for operating a drivetrain of a motor vehicle. The drivetrain includes at least a hybrid drive with an internal combustion engine and an electric motor, a clutch arranged between the internal combustion engine and the electric motor, and a transmission arra... | 02/14/2012 |
| 7938209 | Method and device for adapting a clutch in a hybrid drive train of a vehicle A method for adapting torque characteristic in a disengaging clutch arranged in a vehicle hybrid drive train between an internal combustion engine and an electrical machine connected to a driven wheel, include the following steps: deciding the engine can be disconne... | 05/10/2011 |
| 7766108 | Method for fast starting of a hybrid vehicle The invention essentially concerns a method for fast starting of a hybrid vehicle. Said method uses a power transmission device (1.1) comprising a traction chain consisting of a heat engine (2), a clutch (3), an electrical machine (4), an... | 08/03/2010 |
| 7377344 | Hybrid drive system for a motor vehicle A hybrid drive system for a vehicle, comprising an internal-combustion engine, a generator, an electric motor, an electric energy accumulator, and a connection device for establishing mechanical connections between the internal-combustion engine, the generator, the ... | 05/27/2008 |
| 7370715 | Vehicle and method for controlling engine start in a vehicle A vehicle includes a motor/generator, a disconnect clutch disposed between the engine and the motor/generator, and a transmission disposed between the motor/generator and the vehicle drive wheels. The transmission includes an input clutch which is selectively engaga... | 05/13/2008 |
| 7367416 | Drive train for a motor vehicle and method for starting an internal combustion engine and method for generating electric current A drive train is proposed for a motor vehicle which is driven by an internal combustion engine, having a single friction clutch which has an input element and an output element, wherein the input element is to be connected to a crankshaft of the internal combustion ... | 05/06/2008 |
| 7351182 | Drive apparatus for hybrid vehicle and control method thereof A drive apparatus includes a motor, a first clutch that transmits and cuts off driving force between the motor and an engine, a second clutch that transmits and cuts off driving force to a wheel side from either or both of the motor and the engine, and a control dev... | 04/01/2008 |
| 7306064 | Hybrid transmission and mode-shift control for hybrid vehicle A hybrid transmission for a hybrid vehicle mounting thereon an engine and a pair of electric motor/generators operates in a plurality of driving modes including EV mode in which the vehicle is powered by only the pair of motor/generators and EIVT mode in which the v... | 12/11/2007 |
| 7273119 | Method for starting engine of vehicle with hybrid transmission and apparatus for carrying out the method A method for starting an engine of a vehicle having a hybrid transmission is provided. The hybrid transmission is capable of providing motor running under a power of an electric motor only and hybrid running under a power of both of the engine and the electric motor... | 09/25/2007 |
| 7198123 | Hybrid vehicle mode shift control device A hybrid vehicle mode shift control device comprises a drive force combining transmission that includes a differential gear device coupled to an engine, at least one motor, and an output member, an engine clutch configured to connect and disconnect the engine with t... | 04/03/2007 |
| 7165638 | Hybrid drive system wherein clutch is engaged when engine speed has exceeded motor speed upon switching from motor drive mode to engine drive mode A hybrid vehicle drive system including (a) an engine, (b) an electric motor, (c) a planetary gear device having a first rotary element connected to the engine, a second rotary element connected to the electric motor and connected through a first clutch to an output... | 01/23/2007 |
| 7140460 | Vehicle driving force control apparatus A driving force control apparatus is provided for a vehicle capable of preventing a shock from being generated by disengaging a clutch disposed between a subordinate drive source and subordinate drive wheels during vehicle travel. When a transition determination is ... | 11/28/2006 |
| 7059435 | Control apparatus for hybrid vehicle An object is to improve fuel consumption efficiency while maintaining a desired driving force. Accordingly, in a case where an assisting possibility of a motor M is increased accompanying a relatively high state of charge SOC of a battery (YES side in step S02 | 06/13/2006 |
| 6704627 | Drive force distribution apparatus for hybrid vehicle A drive force distribution apparatus for a hybrid vehicle having an engine for driving a pair of first drive wheels and an electric motor for driving a pair of second drive wheels. The drive force distribution apparatus includes a first clutch, a second c... | 03/09/2004 |
| 6702715 | Power transmission A power transmission comprises an engine E with a plurality of cylinders, a belt-type continuously variable transmission CVT, which changes the rotational speed being transmitted from the engine, a control valve CV, which variably sets the line pressure u... | 03/09/2004 |
| 6679799 | On-demand two-speed transfer case for four-wheel drive hybrid vehicle A hybrid transfer case includes a mainshaft, front and rear output shafts, an electric motor/generator connected to the mainshaft, and an input clutch for selectively coupling the transmission to the mainshaft. The transfer case further includes a planeta... | 01/20/2004 |
| 6672415 | Moving object with fuel cells incorporated therein and method of controlling the same In a hybrid vehicle with fuel cells and an engine mounted thereon as energy output sources, a technique is employed that adequately changes a working energy output source according to a driving state of the hybrid vehicle. The hybrid vehicle has the engin... | 01/06/2004 |
| 6656082 | Hybrid vehicle and method of controlling the same In a hybrid vehicle of the present invention, a clutch motor, an assist motor, and an engine are connected via a dual clutch, which includes an inner clutch arranged between an inner shaft and a middle shaft and an outer clutch arranged between the middle... | 12/02/2003 |
| 6655485 | Hybrid drive system wherein clutch in engaged when engine speed has exceeded motor speed upon switching from motor drive mode to engine drive mode A hybrid vehicle drive system including (a) an engine, (b) an electric motor, (c) a planetary gear device having a first rotary element connected to the engine, a second rotary element connected to the electric motor and connected through a first clutch t... | 12/02/2003 |
| 6638195 | Hybrid vehicle system A hybrid vehicle system is provided with an internal combustion engine driving one set of wheels and an electric motor connected to the other wheels via an active clutch system. A power take-off unit is provided for selectively providing driving torque fr... | 10/28/2003 |
| 6638193 | Transmission system for automotive vehicle In a transmission system for an automotive vehicle, a planetary gear (3) comprises a ring gear (33) fixed to a housing, the planetary gear being interposed between a drive axle (1) in which a torque is transmitted from a power source (EG) of the vehicle a... | 10/28/2003 |
| 6638022 | Hybrid vehicle control device A hybrid vehicle includes: a metal V-belt type infinitely variable gear-change mechanism 20 whereby the rotation of an engine E is subjected to change in gear ratio, a forwards clutch 14 and a reverse brake 15 that perform engagement/disengagement control... | 10/28/2003 |
| 6637530 | Hybrid vehicle control apparatus wherein battery is charged based on required charging amount and/or energy conversion efficiency of electric generator A control apparatus for controlling a hybrid automotive vehicle including an engine and an electric motor as drive power sources for driving the vehicle, and an electric generator operable by the engine to charge a battery while the vehicle is driven by t... | 10/28/2003 |
| 6634247 | Double-clutch transmission A double clutch transmission in connection with an electric unit, as well as a method for operating the transmission.... | 10/21/2003 |
| 6634986 | Power transmission device The invention reduces the shift shock of a device equipped with a plurality of prime movers, and provides a power transmission device of a device having a first prime mover (engine) 1 and a second prime mover (motor) 2 as drive sources, which is arranged ... | 10/21/2003 |
| 6629027 | Control device and control method for hybrid vehicle A control device and control method for a hybrid vehicle is disclosed having an electric storage detecting section 13 which detects a state of charge (SOC) of an electric storage device 10. A target running efficiency calculating section 14 serves as a un... | 09/30/2003 |
| 6629026 | Hybrid electric vehicle with motor torque fill in A post-transmission, parallel hybrid electric vehicle and method of control thereof is provided having an engine 200 joined to a differential 206 by an automated layshaft transmission 212. A motor 202 is provided which additionally provides torque to the ... | 09/30/2003 |
| 6629024 | Control apparatus for variable-cylinder engine, and control apparatus for vehicle A control apparatus for a variable-cylinder engine of a vehicle, including a regenerative-braking-state detecting device operable to detect a regenerative braking state of the vehicle, and a decompression-state setting device arranged to place selected on... | 09/30/2003 |
| 6612203 | Power transmission system of an automobile The power transmission of the car comprises an engine, a gearbox, a rotary electric unit which transmits power through the gearbox, and a clutch which is provided between the input shaft and the output shaft of said gearbox to control the torque between t... | 09/02/2003 |
| 6612963 | Power transmission system of an automobile A generator use gear enable to rotate freely against an input shaft of a transmission mechanism for altering a rotation number of an engine and a clutch mechanisms in which the input shaft of the transmission mechanism and the generator use gear are rotat... | 09/02/2003 |
| 6244368 | Hybrid powered vehicle A hybrid powered vehicle of the present invention reduces the vibrations caused by changes in torque to thereby achieve excellent driving characteristics. The hybrid powered vehicle has an electric motor, an engine and a vehicle driving power source, whic... | 06/12/2001 |
| 5285111 | Integrated hybrid transmission with inertia assisted launch The present invention relates to a power transmission that is interposed between the internal combustion engine and the drive ratio selection transmission of a vehicle. A motor/generator is operatively connected to the power transmission, and the power tr... | 02/08/1994 |
| 4762191 | Articulated vehicle selectively driven at two axles from two power sources A vehicle, more especially in the form of an articulated omnibus, has a hybrid drive system comprising an IC engine and an electric motor, whose power is transmitted not only to an axle driven by the IC engine but in addition to a further drive axle in or... | 08/09/1988 |
| 4646896 | Drive system A propulsion system for a vehicle provides for a drive shaft to be powered by an electric motor or an internal combustion engine, the motor being permanently coupled to the drive shaft and the engine engageable with the shaft by a clutch. Engine speed is ... | 03/03/1987 |
| 4533011 | Hybrid drive for a vehicle, in particular an automobile A hybrid drive for a vehicle includes an electric engine supplied with energy from an electrical storage device and capable of returning energy back to the storage device. The electric engine is connected with a driving axle of the vehicle by a first disc... | 08/06/1985 |
| 4531605 | Arrangement for driving the generator of a vehicle, in particular a passenger automobile A vehicle having an engine which is stopped during selected operating states and a generator having counterrotating members. One of the counterrotating members is connected to the engine and the other counterrotating member is connected to the wheels of t... | 07/30/1985 |
| 4416360 | Drive for automobile automatic transmission A drive train for an automobile engine and automatic transmission includes a clutch positioned between the engine and the flywheel and a starting motor on the transmission side of the clutch.... | 11/22/1983 |
| 4400997 | Drive for a vehicle with an internal combustion engine and an electric motor A drive for a vehicle with an internal combustion engine and an electric motor drivingly connected to a manual transmission with a clutch is provided. The transmission has a shift lever, a shift gate, a lane associated with the lowest gear of the transmis... | 08/30/1983 |
| 4351405 | Hybrid car with electric and heat engine An apparatus for economical travel and minimization of atmospheric degradation by internal combustion exhaust products. A car which has, in combination, a heat engine driving a set of front wheels, storage batteries and an electric motor driving a set of ... | 09/28/1982 |
| 4335429 | Control apparatus for engine/electric hybrid vehicle A hybrid vehicle comprises an internal combustion engine, a relatively large motor/generator and a relatively small motor/generator, which are controlled by a microcomputer based on the required torque of the vehicle as a function of time. When the engine... | 06/15/1982 |