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| Number | Title | Issue Date |
| 7946943 | Method and device for controlling an automatic transmission The invention relates to a method and a device for controlling an automatic transmission, the automatic transmission (100) comprising a single-stage planetary gear train (110) in combination with a two-stage planetary gear train (120), and provi... | 05/24/2011 |
| 7896769 | 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... | 03/01/2011 |
| 7824291 | Shift control apparatus and method for automatic transmission When a determination for a second shift is made during a first shift process, if the turbine speed is the variety of the synchronous rotational speed for the speed to which the automatic transmission is to be shifted in the second shift and the hydraulic pressure co... | 11/02/2010 |
| 7789785 | Shift control method of automatic transmission A shift control method of an automatic transmission according to this invention controls a shift from an N speed achieved by engagement of first and second frictional elements to an N−3 speed achieved by engagement of third and fourth frictional elements, wherein ... | 09/07/2010 |
| 7682276 | Hydraulic control system for use in a motor vehicle and method for controlling the hydraulic control system A hydraulic control system that includes a solenoid valve for supplying a prescribed fluid pressure; and a relay valve for selectively switching a destination of the prescribed fluid pressure between a first destination part and a second destination part. The relay ... | 03/23/2010 |
| 7621836 | Hydraulic control system of 7-speed automatic transmission for vehicles A hydraulic control system applicable to a power train of a seven-speed automatic transmission for a vehicle having six friction members. Enhanced overall performance is achieved by minimization of shift shock and an enhancement of fuel consumption as a consequence ... | 11/24/2009 |
| 7556579 | Transmission shift system A transmission shift system includes a first control path having a first electrically actuated valve system, and is configured to selectively direct hydraulic pressure to a first plurality of clutches for selecting only an output speed. A second control path indepen... | 07/07/2009 |
| 7510496 | Electro-hydraulic control system with interlock protection An electro-hydraulic control system for a transmission is provided having first, second, and third selectively engageable torque transmitting mechanisms. The control system includes a main source of fluid pressure and first, second, and third trim valves operable to... | 03/31/2009 |
| 7500932 | Shift control apparatus and method for automatic transmission A shift control apparatus includes an automatic transmission provided with a first friction-engagement element and a second friction-engagement element; and a friction-engagement element control section configured to control the first and second friction-engagement ... | 03/10/2009 |
| 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 |
| 7393299 | Hydraulic control apparatus and hydraulic control method for automatic transmission At a first forward speed, the oil passage in a relay valve is switched to control the torque capacity of a lock-up clutch using a linear solenoid valve that controls the engagement pressure of a clutch that is engaged at each of fifth to eighth forward speeds. At ea... | 07/01/2008 |
| 7302338 | Navigational system and method for configuring a navigational system In a navigational system for generating route recommendations and for target tracking, a system (500, 800) is proposed, which detects vehicle-, traffic-, and/or driver-related data and which from these data can derive patterns of behavior of the user. The pat... | 11/27/2007 |
| 7289892 | Power train inspection system, power train inspected by power train inspection system, and control unit for power train The present invention provides inspection of a transmission with higher precision and in a shorter period of time. Before a finished A/T is inspected, a V/B ASSY and an ECU are inspected together by a V/B tester in a subsidiary line. A solenoid current command value... | 10/30/2007 |
| 7286922 | Method of and apparatus for transmitting torque in vehicular power trains The magnitude of torque which can be transmitted by a bypass clutch between the housing and the turbine of a torque converter between a prime mover, such as an engine, and an automatic transmission in the power train of a motor vehicle is selectively regulatable by ... | 10/23/2007 |
| 7282005 | Hydraulic control apparatus of automatic transmission A hydraulic control apparatus of an automatic transmission. The hydraulic control apparatus of the automatic transmission has a hydraulic servo for controlling an engaging state of a clutch C-1 on the basis of supplied oil pressure, a linear solenoid valve fo... | 10/16/2007 |
| 7247126 | Method and apparatus for shift control of an automatic transmission Whenever a 4 to 3 shift condition is satisfied during a 3 to 4 upshift, 4 to 3 shifting is started before the 3 to 4 shifting is finished. The 4 to 3 shifting is executed according to a predetermined hydraulic control pattern. Therefore, responsiveness in shifting i... | 07/24/2007 |
| 7240487 | Throttle potentiometer adapter A throttle potentiometer adapter provides a direct connection between a pivot nut on a hand throttle linkage and the internal sleeve of a potentiometer. The potentiometer provides a voltage output to an electronic controller, the voltage output corresponding to the ... | 07/10/2007 |
| 7179189 | Swap shift control An automatic transmission for a vehicle includes an input shaft, an output shaft, a first and second plurality of gears, and a series of engagement elements. The series of engagement elements includes at least one overrunning engagement element in mechanical communi... | 02/20/2007 |
| 7131931 | Gearbox control system In a gearbox control system (8) for detecting systematic errors and long-term changes, the behavior of a real gearbox (1) is compared to the behavior of an ideal gearbox (7), which is implemented in the form of a gearbox model in the gearbox con... | 11/07/2006 |
| 7128678 | Transmission system gear shift selection and control A transmission includes an input shaft, an output shaft, a first plurality of gears, a second plurality of gears, and a series of engagement elements operable between an engaged position and a disengaged position. A controller is further provided to selectively togg... | 10/31/2006 |
| 7066305 | Brake bands for an automatic transmission and method for controlling a gear shift in automatic transmission and feedback loop control system A brake band shifting mechanism for an automatic transmission. The brake band shifting mechanism includes a brake band encircling a brake drum of the transmission. A first end of the brake band is mounted to a secured portion of the transmission by a first linkage a... | 06/27/2006 |
| 7028521 | Pipe feeding mechanism of an automatic pipe bender A pipe feeding mechanism includes a rack, a power source, first and second planetary gears, a clutch for releaseably securing an output shaft to an input shaft in the first planetary gear, and a brake for releaseably blocking rotation of a sun gear of the first plan... | 04/18/2006 |
| 7027914 | Diagnostic coordination control An engine control system includes an ignition switch that selectively initiates an ignition signal and an operating mode of an engine. A powertrain relay selectively generates a PR load signal based on the ignition signal and the operating mode. A control module ena... | 04/11/2006 |
| 7018315 | Hydraulic control apparatus for vehicle and method thereof A hydraulic control apparatus for a vehicle including an electric oil pump, a pump control portion which controls the electric oil pump, a hydraulic circuit portion which supplies a hydraulic pressure from the electric oil pump to an actuator of a transaxle of the v... | 03/28/2006 |
| 7004872 | Control method and device for automatic transmission A control method for an automatic transmission is capable of quickly determining whether gear shifting is permissive. The control method varies the command value input to an engaging-side electromagnetic valve that adjusts a hydraulic pressure applied to a frictiona... | 02/28/2006 |
| 7001299 | Control apparatus of automatic transmission According to an aspect of the present invention, an automatic transmission includes plural friction engaging elements configures plural shift ranges based on combinations of each friction engaging element being in engaging or disengaging condition, a controlling uni... | 02/21/2006 |
| 6997081 | Method and structure for mounting a terminal connector to a transmission case A method is provided to mount a terminal connector, which gathers wirings that extend from a control valve unit, to a transmission case, which includes a mount portion with a mount hole, and which encloses the control valve unit. The method includes: (a) inserting t... | 02/14/2006 |
| 6969340 | Control apparatus and control method for automatic transmission A control apparatus and method for an automatic transmission, by which a shift is executed by simultaneously controlling release and application of different friction engaging elements, are provided which i) control a clamping force of a friction engaging element to... | 11/29/2005 |
| 6966861 | Shift control for a two-axis automatic transmission for a vehicle A shift control method for an automatic transmission having a primary shift portion and a secondary shift portion is provided that comprises: starting, if a shift signal is output, a shift in the secondary shift portion, and then starting a shift in the primary shif... | 11/22/2005 |
| 6962547 | Oil pressure control of transmission for vehicles An oil pressure control device, which changes a range of a vehicle transmission includes: a pressure adjusting device that engages or releases forward and reverse frictional-engagement devices by adjusting an oil pressure supply, a sensor that detects a range select... | 11/08/2005 |
| 6931924 | Method for testing the function of an electrohydraulically controlled automatic transmission The method for testing the function of an electrohydraulically controlled automatic transmission upon a testing stand by simulation of a vehicle operation provides that the output shaft of the transmission be connected with a stationary torque-measuring hub and be b... | 08/23/2005 |
| 6929031 | Electro-hydraulic manifold assembly with lead frame mounted pressure sensors An electro-hydraulic manifold assembly with a plurality of solenoid operated valves disposed on a manifold block and each operable to control pressure from the inlet to a separate outlet. Sensing ports are provided in each outlet with a pressure sensor sealed over t... | 08/16/2005 |
| 6923049 | Method of testing friction components for automatic transmissions A method of testing a friction component for a transmission that has first and second parts. The first part of the friction component is attached to a drive shaft and the second part is attached to a grounding element. The first part of the friction component is rot... | 08/02/2005 |
| 6915681 | Gear-shift control device and gear-shift control method for automatic transmission An ECT-ECU includes a circuit that calculates an oil temperature threshold on the basis of a signal input from one of an engine coolant temperature sensor, an engine intake air temperature sensor, and an AT hydraulic fluid temperature sensor if a signal for starting... | 07/12/2005 |
| 6793602 | Automatic transmission control device and control method An automatic transmission control device controls multiple speed changes in which shifting from first speed to second speed occurs during shifting from second speed to first speed. The control device includes a shift lever position sensor, an ECT_ECU, and an AT line... | 09/21/2004 |
| 6672990 | Method for controlling an automatic transmission A method for control of a transmission of a vehicle, especially of an automatic transmission or an automated manual mechanical transmission with hydraulically actuatable shifting elements is described. A speed signal (n_ab_ist, n_t_ist) of the output trai... | 01/06/2004 |
| 6634991 | Hydraulic control unit for automatic transmission A hydraulic control unit including a hydraulic servo for engaging and disengaging each friction engagement element, hydraulic pressure supply device for supplying hydraulic pressure to a hydraulic servo of a predetermined friction engagement element selec... | 10/21/2003 |
| 6616561 | Hydraulic control apparatus and an automatic transmission control system A hydraulic control apparatus includes a linear solenoid valve for outputting modulated pressure in response to electric current applied to the linear solenoid valve, a plurality of control valves outputting control pressure in response to the modulated p... | 09/09/2003 |
| 6607460 | Hydraulic control system for automatic transmission This invention provides a hydraulic control system for controlling a power train including four clutches and two brakes, wherein a first pressure controlled by a first solenoid valve is selectively supplied to two clutches of the power train under control... | 08/19/2003 |
| 6585617 | Electro-hydraulic control system for a multi-speed power transmission A powertrain has an electro-hydraulic control mechanism that provides for the establishment of six forward speeds, a neutral condition and a reverse speed. The control system also permits operation in the fifth forward range if electrical power is discont... | 07/01/2003 |
