Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 8172711 | Hydraulic control apparatus of automatic transmission A hydraulic control apparatus of an automatic transmission having engagement pressure solenoid valves configured to regulate an engagement pressure supplied to a hydraulic servo of a frictional engagement element and to output the engagement pressures from a predete... | 05/08/2012 |
| 8070636 | Electroyhydraulic control device of a gear unit An electrohydraulic control device (1) of an 8-speed transmission having several electrically controllable pressure control valves (6-12) for hydraulically actuating five switching elements (A-E) and an electric gear control unit via which diffe... | 12/06/2011 |
| 8070637 | Manual valve control for multi-speed planetary transmission A manual valve control for a multi-speed vehicle transmission is provided. Electronic and hydraulic components are provided, including trim valve systems that are multiplexed by a shift valve and a manual valve. The trim valves and shift valve are self-diagnosing vi... | 12/06/2011 |
| RE42131 | Fly-by-wire limp home and multi-plex system An electro-hydraulic control mechanism for use with a multi-speed transmission includes a pair of logic valves, which are manipulated during the ratio interchanges and the ratio establishment by aiding in the distribution of fluid pressure from a plurality of trim v... | 02/08/2011 |
| 7846053 | Hydraulic control system of eight-speed automatic transmission for a vehicle A hydraulic control system of an eight-speed automatic transmission for a vehicle. Four clutches and two brakes can by independently controlled by six proportional control solenoid valves by employing pressure control valves and pressure switching valves. ... | 12/07/2010 |
| 7811192 | Hydraulic control system of eight-speed automatic transmission for a vehicle A hydraulic control system of an eight-speed automatic transmission for a vehicle. Four clutches and two brakes can by independently controlled by six proportional control solenoid valves by employing pressure control valves and pressure switching valves. ... | 10/12/2010 |
| 7794349 | Gear control device An automatic transmission control device with a hydraulic control system controlled by an electric transmission control device. The system including several pressure control valves, actuated electrically by the transmission control device, and several switching valv... | 09/14/2010 |
| 7682275 | Automatic transmission control apparatus An automatic transmission control apparatus is provided with a shift control section, a first rotary-speed detecting section, a second rotary-speed detecting section and an input shaft speed calculation section. The shift control section issues instructions to selec... | 03/23/2010 |
| 7611434 | Hydraulic controlling apparatus for automatic transmission for vehicle The fail-safe gear step switching valve (120) can be switched to the first position to establish the low-speed side fail-safe gear step (third speed-change gear step) or the second position to establish the high-speed side fail-safe gear step (fifth speed-cha... | 11/03/2009 |
| 7481734 | Hydraulic control apparatus and hydraulic control method of vehicular automatic transmission A hydraulic control apparatus of a vehicular automatic transmission has a plurality of hydraulic friction engagement devices that are selectively engaged and released to establish a plurality of forward speed change stages of different speed change ratios. The forwa... | 01/27/2009 |
| 7419452 | Control apparatus of vehicular automatic transmission At the time of a failure in the second group of engagement devices, the manner of input of oil pressures to a fail-safe valve group is changed via a priority degree switching valve on the basis of the state of engagement of engagement devices of the first group in s... | 09/02/2008 |
| 7344466 | Hydraulic control system of 7-speed automatic transmission for vehicle A hydraulic control system of a seven-speed automatic transmission that provides enhanced overall performance by achieving precise and effective control by providing a fail-safe function in at least two ways. ... | 03/18/2008 |
| 7338402 | Device for controlling an automatic transmission A device for the hydraulic control of an automatic transmission, especially a continuously variable automatic transmission. The control system comprises a forward/reverse drive unit (4), which is controlled by way of at least a first and a second shifting com... | 03/04/2008 |
| 7322899 | Electro-hydraulic control system for an electrically variable hybrid transmission A powertrain has an electrically variable hybrid transmission having an electro-hydraulic control system, plurality of electrical power units, and a plurality of torque transmitting mechanisms selectively engageable by the electro-hydraulic control system to provide... | 01/29/2008 |
| 7320657 | Vehicle automatic transmission control apparatus with fail-safe arrangement A control apparatus for controlling a vehicle automatic transmission including (i) a first coupling device to be engaged for establishing an emergency gear position and (ii) a second coupling device to be released for establishing the emergency gear position. The co... | 01/22/2008 |
| 7300375 | Hydraulic circuit for the control of a drive train A hydraulic circuit for the control of a double clutch transmission which has two transmission groups, each with an isolating clutch and with a plurality of shift clutches for the engagement and disengagement of gear steps, the hydraulic circuit having for each tran... | 11/27/2007 |
| 7294089 | Multiple-speed automatic transmission An automatic transmission includes a first power path producing a first ratio of a speed of the input and a speed of a first power path output; a second power path producing a second ratio of a speed of the input and a speed of the second power path output, the seco... | 11/13/2007 |
| 7288039 | Multiplexed pressure switch system for an electrically variable hybrid transmission A powertrain has an electrically variable hybrid transmission having an electro-hydraulic control system, plurality of electrical power units, and a plurality of torque transmitting mechanisms selectively engageable by the electro-hydraulic control system to provide... | 10/30/2007 |
| 7285066 | Multiplexed trim valve system for an electrically variable hybrid transmission A powertrain has an electrically variable hybrid transmission having an electro-hydraulic control system, plurality of electrical power units, and a plurality of torque transmitting mechanisms selectively engageable by the electro-hydraulic control system to provide... | 10/23/2007 |
| 7264573 | Automatic transmission control apparatus having diagnostic function An automatic transmission control apparatus controls a gear position by engaging and disengaging multiple frictional elements. A hydraulic pressure detector detects hydraulic pressure applied to the frictional elements. A failure determiner determines a failure, i.e... | 09/04/2007 |
| 7261662 | Hydraulic control apparatus for automatic transmission of vehicle A hydraulic control apparatus for use with a vehicle's automatic transmission, the apparatus including a fail-safe switch valve which has an escape-related output port connected to a drain port of a transmission-related solenoid valve corresponding to an escape-rela... | 08/28/2007 |
| 7244209 | Hydraulic control device for automatic transmission A hydraulic control apparatus for an automatic transmission including two frictional coupling devices of a first group and a plurality of frictional coupling devices of a second group, the control device including a second-group-engaging switching valve arranged to ... | 07/17/2007 |
| 7216025 | Adaptive pressure control method for synchronous downshifts in a multiple-ratio transmission An adaptive pressure control method for synchronous downshifts in an automatic transmission that uses pressure actuated friction elements. The method uses characteristic parameters that determine downshift quality for both power-on downshifts and power-off downshift... | 05/08/2007 |
| 7192384 | Automatic transmission control device An automatic transmission control device adjusts a hydraulic pressure of a working fluid to generate pressures applied to a plurality of friction elements of an automatic transmission to control the engagement or disengagement of the friction elements. The control d... | 03/20/2007 |
| 7175556 | Hydraulic control apparatus for automatic transmission A hydraulic control apparatus for an automatic transmission includes a first SL linear solenoid, a second SL linear solenoid, a third SL linear solenoid, and a fourth SL linear solenoid, which are normal closed type, and a sequence valve. The sequence valve connects... | 02/13/2007 |
| 7140993 | Fly-by-wire limp home and multi-plex system An electro-hydraulic control mechanism for use with a multi-speed transmission includes a pair of logic valves, which are manipulated during the ratio interchanges and the ratio establishment by aiding in the distribution of fluid pressure from a plurality of trim v... | 11/28/2006 |
| 7128676 | Failsafe hydraulic circuit A failsafe hydraulic circuit designed to avoid simultaneous engagement of two friction engagement elements (e.g., clutches, brakes, etc.) incorporated in a speed change apparatus of a motor vehicle or the like. If a first failsafe valve is in the open position state... | 10/31/2006 |
| 7104910 | Hydraulic control apparatus for hydraulically operated mechanical apparatus A hydraulic control apparatus for switching an operation of a hydraulically operated mechanical apparatus, by selectively operating two frictional engagement elements of a first, a second, a third, and a fifth frictional engagement elements, the hydraulic control ap... | 09/12/2006 |
| 7040186 | Parallel manual transmission for four-wheel drive and parallel manual transmission for transverse installation in a front-wheel drive vehicle A parallel manual transmission for a four-wheel drive is provided and includes two input shafts, each of which can be non-rotatably coupled via its own clutch to a shaft that is powered by a drive engine. ... | 05/09/2006 |
| 6986724 | Hydraulic control system of a six-speed automatic transmission for a vehicle The six-speed automatic transmission includes five frictional elements and is efficiently controlled by a minimal number of spool valves and solenoid valves. Drivability is, thereby enhanced and weight and cost are reduced. ... | 01/17/2006 |
| 6966862 | Shift control system of automatic transmission In a case of an electric failure caused to a traveling vehicle and when any of forward gears is held at a step S5, a comparison is made between: 1) a supposedly-engaged friction element of friction elements which is supposed to be engaged at the any of the fo... | 11/22/2005 |
| 6950736 | Shift control method and apparatus of an automatic transmission In the case of malfunctioning of an inhibitor switch of an automatic transmission, a current vehicle speed is compared with a maximum vehicle speed of a reverse speed when the current vehicle speed is other than 0. The transmission is then controlled to a target shi... | 09/27/2005 |
| 6942591 | Hydraulic control system of a six-speed automatic transmission Each control portion for controlling each friction element includes a switch valve and pressure control valve such that hydraulic pressure supplied to the friction element is fully controlled, and a control portion for controlling a friction element that is operated... | 09/13/2005 |
| 6929584 | Hydraulic pressure control apparatus and method for vehicular automatic transmission A switching valve is provided which operates hydraulic friction engaging elements in a combination to establish a fifth speed “5th” when in a first position, and in a combination to establish a third speed “3rd” when in a second position, when a first electr... | 08/16/2005 |
| 6866611 | Vehicle range shift mechanism A judging section judges whether or not ranges detected, respectively, by a first range detection section consisting of a first detection section and a position detecting sensor, and a second range detection section consisting of a second detection section; a C1 ... | 03/15/2005 |
| 6860830 | Hydraulic control device for automatic transmission There is provided a hydraulic control device for an automatic transmission, which is comprised of an engagement state determining section and a protection control section. If the engagement state determining section determines that each clutch, which is supplied wit... | 03/01/2005 |
| 6840885 | Six-speed powertrain and hydraulic control system for automatic transmission The powertrain of a six-speed powertrain and a hydraulic control system includes a main shift section of first and second single pinion planetary gearsets, in which a first planet carrier is fixedly connected to a second ring gear. The powertrain also includes a fir... | 01/11/2005 |
| 6835152 | Automatic transmission with a hydraulic control apparatus An automatic transmission and method including a plurality of hydraulic servos which respectively engage and disengage a plurality of frictional engagement elements, a first solenoid valve for gear shifting which is used for generating a hydraulic pressure supplied ... | 12/28/2004 |
| 6805649 | Hydraulic control system for automatic transmission A hydraulic control system, in which a powertrain of a 5-speed automatic transmission is controlled using five clutches and three brakes such that fuel consumption is reduced and engine torque is more efficiently utilized. The hydraulic control system includes four ... | 10/19/2004 |
| 6780131 | Hydraulic control apparatus for automatic transmission To prevent the neutral state from being formed in a change gear apparatus and allow the obtaining of an intended gear change appropriately during a servo malfunction. Hydraulic servos engage and disengage a plurality of friction engagement elements; a hydraulic pres... | 08/24/2004 |
