Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 8190342 | Hydraulic vehicle A hydraulic vehicle provided with a running-system hydraulic unit 10 that includes a hydraulic pump 11 being configured to be driven by an engine E, a hydraulic motor 12 being configured to be driven by pressure oil discharged from the hydraulic... | 05/29/2012 |
| 8190341 | Method of operating a transmission auxiliary pump A method of controlling an auxiliary pump for use with a transmission in a vehicle is provided, the vehicle having a system voltage/current. The method comprises: determining an optimal auxiliary pump start voltage/current; determining if the system voltage/current ... | 05/29/2012 |
| 8185284 | Control device of automatic transmission, and control method of automatic transmission ECU executes in-neutral control in a case where a first clutch is brought into a half-engagement state on the basis of execution of neutral control. During the in-neutral control, ECU detects engine speed and input-shaft rotating speed, and detects differential rota... | 05/22/2012 |
| 8180540 | Continuously variable transmission A continuously variable transmission can have one or more rotatable output shafts, rotatable non-output shafts, continuously variable transmission elements selectively interconnecting at least one non-output shaft and one output shaft so as to permit variation of a ... | 05/15/2012 |
| 8170762 | Method and apparatus to control operation of a hydraulic pump for an electro-mechanical transmission A method for controlling a hydraulic flow within a powertrain comprising an electromechanical transmission mechanically-operatively coupled to an engine adapted to selectively transmit power to an output, wherein the transmission utilizes a hydraulic control system ... | 05/01/2012 |
| 8068966 | Method for monitoring an auxiliary pump for a hybrid powertrain A powertrain system includes a hybrid transmission coupled to an engine and an auxiliary hydraulic pump. The auxiliary hydraulic pump is commanded to operate at a predetermined speed only when enable criteria are met. An engine-off state is inhibited based upon a di... | 11/29/2011 |
| 7908069 | Method of operating a clutch during a vehicle launch A method of operating a clutch during vehicle launch including increasing a first hydraulic pressure in an inner chamber from a first to a second level; decreasing a second hydraulic pressure in an outer chamber from a third to a fourth level in response to engine s... | 03/15/2011 |
| 7860633 | Device for attachment to a wheel and wheel with such a device A device for attachment to a motor vehicle wheel includes an arrangement which, during movement or driving of the motor vehicle, detects vibrations which occur, evaluates the vibrations for an incipient fault state of a wheel bearing of the vehicle wheel, and delive... | 12/28/2010 |
| 7706952 | Method for controlling a set torque to be applied to wheels of an automatic transmission for a motor vehicle and corresponding device A method for controlling an automatic transmission of a power train for a motor vehicle, including producing a first set torque signal to be applied to the wheels, which represents wishes of the motor vehicle driver and that includes two components: a static compone... | 04/27/2010 |
| 7620487 | Engine torque control device An engine torque control device is configured to reduce shift shock while shortening shift time and improving shift response in an engine equipped with a shifting unit. In the engine torque control device engine output torque is subjected to feedback control so that... | 11/17/2009 |
| 7374513 | Method and apparatus for adaptive control of closed throttle downshifts in an automatic transmission The present invention provides a method and apparatus for adaptively controlling a closed throttle downshift in an automatic transmission wherein a transmission aberration during a shift is diagnosed and corrected during subsequent closed throttle downshifts. The in... | 05/20/2008 |
| 7373234 | Method for determining solenoid control current using hysteresis interpolation for transmission clutch control A transmission control arrangement controls the generation of a required solenoid control current that is provided to an electro-hydraulic pressure control module to ultimately control clutch pressure. The module includes a linear solenoid, which has an up direction... | 05/13/2008 |
| 7317979 | Speed change control system of automotive automatic transmission In a speed change control system of an automatic transmission incorporated with an engine, there are provided a speed change mechanism that is able to establish a forward speed or a reverse by engaging a hydraulically operated friction element upon switching of the ... | 01/08/2008 |
| 7315775 | Automotive transmission control system and method The present invention is a control system and method for the determination of a simulated transmission fluid temperature value using multiple linear regression. The present invention also provides a control system and method to diagnose the health of the transmissio... | 01/01/2008 |
| 7278953 | Transmission shift control method A method is provided for shifting a powershift transmission in a vehicle having an electronic engine control unit and an electronic transmission control unit. The method rapidly reduces off-going clutch pressure to a pressure which is slightly higher than a Predicte... | 10/09/2007 |
| 7260462 | Method for controlling an electromagnetic valve, in particular for an automatic transmission of a motor vehicle A method for controlling an electromagnetic valve, in particular for an automatic transmission of a motor vehicle. With known methods, electromagnetic valves are triggered with a pulse-width-modulated signal having a constant clock frequency. The object is to provid... | 08/21/2007 |
| 7257522 | Simulator for automatic vehicle transmission controllers A simulator comprising computer-aided design programs for simulating a shift control algorithm stored in an ECU of an automatic transmission having hydraulic clutches. In the simulator, a simplified hydraulic model describes the entire system so as to design a third... | 08/14/2007 |
| 7243016 | Single wire dual speed signal system A control system and method for communicating with a transmission includes a transmission input speed sensor that generates an input speed signal. A transmission output speed sensor generates an output speed signal. A power supply supplies a total current to the tra... | 07/10/2007 |
| 7222005 | Abnormal oil pressure reduction determination device for vehicle transmission An abnormal oil pressure reduction determining device has an oil pressure sensor which detects a real oil pressure, a sensor which detects a vehicle running state, and a controller which sets an oil pressure command value for an oil pressure control mechanism. The c... | 05/22/2007 |
| 7212898 | Method and apparatus for adaptive control of power-on skip through neutral downshifts The present invention provides a method and apparatus for mathematically calculating an optimal transmission input torque value for the inertia phase and the torque phase of a ratio change. Engine output is then altered by an amount necessary to change the actual va... | 05/01/2007 |
| 7194349 | Closed-loop, valve-based transmission control algorithum A system for controlling pressure in a transmission comprises a transmission control unit, a valve controller that receives a desired pressure as input from the transmission control unit, a valve driver, a valve that regulates an amount of fluid in a transmission cl... | 03/20/2007 |
| 7189187 | Control apparatus and method for vehicular automatic transmission A control apparatus for a vehicular automatic transmission includes a control portion that executes a neutral control in which the control portion places the automatic transmission in a neutral state by reducing an application load on a frictional apply device insid... | 03/13/2007 |
| 7188017 | Method and apparatus for controlling a transfer case clutch to improve vehicle handling In a motor vehicle driveline having an automatic transmission driveably connected to a transfer case whose output is continually connected to a first output, a clutch, selectively engaged in response to a control signal, driveably connects a second output to the fir... | 03/06/2007 |
| 7177743 | Vehicle control system having an adaptive controller The vehicle control system having an adaptive controller is provided that accomplishes unsupervised learning such that no prior extensive training is needed for every situation. The inventive controller system is based on a neural network evolved with genetic algori... | 02/13/2007 |
| 7168515 | 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... | 01/30/2007 |
| 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 |
| 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 |
| 7115069 | Electronic adaptive swap-shift control for an automatic transmission for automotive vehicles A control system and control method for a swap-shift transmission having auxiliary and main gearsets wherein precise synchronization control of ratio changes of each gearset at the start and at the end of a swap-upshift progression is achieved using an adaptive cont... | 10/03/2006 |
| 7107135 | Auxiliary gearset shift progression command generator for a swap-shift automatic transmission A target command generator for use in a control system for an automatic transmission having a simple planetary gearset in series with a multiple-ratio gearset, the target command generator providing input for a controller for the simple planetary gearset to achieve ... | 09/12/2006 |
| 7104907 | System and method of controlling automatic transmission In a system for controlling an automatic transmission, at the time of ultra-low temperature start with the oil temperature of −20° C. or less, control is carried out such that when the state that the actual line pressure is equal to or greater than an ultra-low s... | 09/12/2006 |
| 7094178 | Drive control A drive control for controlling a gear system which is connected to a motor. The drive control comprises one or several sensors for detecting operationally specific parameters of the gear system, and a decentralized sensor evaluation unit. The sensor or each sensor ... | 08/22/2006 |
| 7069767 | Method of determining initial transmission calibration A process for learning the pressure and volume characteristics for a given torque-transmitting mechanism is established on the final assembly line wherein a powertrain incorporating the desired transmission learning is installed within a vehicle. During the test pro... | 07/04/2006 |
| 7043347 | Hydraulic clutch control of vehicle power train A hydraulic clutch transmits driving torque in a power train of a vehicle. An oil pressure supply unit supplies oil pressure for engagement to the clutch and a controller controls the unit. The controller causes the unit, prior to engagement of the clutch, to precha... | 05/09/2006 |
| 7037236 | Hydraulic transmission vehicle A hydraulic transmission (21) has an electric actuator (86) for changing its output/input rotation speed ratio. A controller 90 of the actuator memorizes a command current value to the actuator supposing that load is not applied on the hydraulic... | 05/02/2006 |
| 7008344 | Control apparatus for controlling a shift operation in an automatic transmission A control apparatus for controlling a shift operation in an automatic transmission includes a disengaging side controlling device for performing a feedback control so as to substantially match a slip amount calculated by a slip amount calculating device with a targe... | 03/07/2006 |
| 6997837 | Shift control system of automatic transmission for vehicle and shift control method thereof In a shift control system of an automatic transmission for a vehicle, an engaging torque applied to a predetermined friction element that has been engaged to establish a predetermined gear stage of the automatic transmission during running of the vehicle is graduall... | 02/14/2006 |
| 6993424 | Method and apparatus for controlling a solenoid valve of an automatic transmission of a vehicle When a target duty of a solenoid valve of an automatic transmission of a vehicle lies in a predetermined duty range, the solenoid valve is driven for an adjusted over-excitation period obtained by adjusting a base over-excitation period on the basis of an over-excit... | 01/31/2006 |
| 6980897 | Oil pressure reduction rate restricting apparatus for V-belt type continuously variable transmission There is provided an oil pressure reduction rate restricting apparatus for a V-belt type continuously variable transmission, which is comprised of a reduction rate restricting section that calculates a reduction rate restricted secondary pressure and a reduction rat... | 12/27/2005 |
| 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 |
| 6961647 | Method of controlling a vehicle and system of controlling the same Friction clutches 203, 204 and engaging clutches 19, 20, 21 are arranged between an input shaft and an output shaft of a gear type transmission having a plurality of gear trains. A power train unit 100 controls an output shaft torque and an inpu... | 11/01/2005 |
