| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 477120000 | By acceleration | 15 |
| 20080242504 | Shifting Point Display in a Motor Vehicle Having a Manual Transmission - A shifting point display for indicating shift advice is provided in a motor vehicle having a manual transmission and a control unit for the continuous determination of a current operating point of the motor vehicle. At least one characteristic upshift indication curve or a characteristic downshift indication curve is stored in an electronic memory. An upshift indication or a downshift indication is displayed when the characteristic upshift indication curve or the characteristic downshift indication curve is reached by the current operating point and a currently differently engaged gear. The upshift indication or the downshift indication is indicated until the driver has carried out a corresponding upshift operation or downshift operation or until the current operating point has reached and/or fallen below a characteristic upshift indication hysteresis curve that is smaller than the characteristic upshift indication curve, or has reached and/or exceeded a characteristic downshift indication hysteresis curve that is greater than the characteristic downshift indication curve. | 10-02-2008 |
| 20080312037 | Automatic Gear Control Device - A control apparatus for an automatic transmission including a gear-type transmission mechanism connected to an output shaft of a motive power source, the gear-type transmission including plural frictional engagement elements. The control apparatus senses a power-on downshift in which the frictional engagement elements are engaged during a downshift in a driving state of the motive power source, controls the motive power source so that in the power-on downshift an output of the motive power source is reduced, counts a time during which an input rotational speed of the transmission mechanism approximates an after-shift synchronous rotational speed, and controls the motive power source so that, if the time exceeds a predetermined time while the output of the motive power source is reduced, recovery from the reduction of the output of the motive power source is attained. | 12-18-2008 |
| 20090118096 | AUTOMATIC TRANSMISSION UPSHIFT TIMING - Methods and apparatus for control of a transmission are described, including provision of a shift initiation signal to the transmission when the engine speed attains an initiation point engine speed, the initiation point engine speed being adjustable as a function of a rate of change of engine speed so as to reduce engine speed variability at shift endpoints. | 05-07-2009 |
| 20090143195 | RAPID ACCELERATION CONTROL APPARATUS - A rapid acceleration control apparatus has a rapid acceleration prime mover rotational speed control section and a rapid acceleration start clutch capacity control section. The rapid acceleration prime mover rotational speed control section executes a rapid acceleration start prime mover rotational speed control that control a rotational speed of the prime mover to a target rotational speed required to achieve the rapid acceleration start when a rapid acceleration start condition exists in which both an accelerator and a brake are simultaneously operated while the vehicle is stopped. The rapid acceleration start clutch capacity control section executes a rapid acceleration start clutch capacity control that decreases a connection capacity of the clutch during the rapid acceleration start prime mover rotational speed control executed by the rapid acceleration prime mover rotational speed control section to suppress heating of the clutch due to the rapid acceleration start primer mover rotational speed control. | 06-04-2009 |
| 20100004094 | CONTROL DEVICE FOR AUTOMATIC TRANSMISSION - A controller ( | 01-07-2010 |
| 20100081543 | VALVE ARRANGEMENT IN A HYDRAULIC CONTROL UNIT - A pressure (p | 04-01-2010 |
| 20100113220 | METHOD FOR OPERATING A DRIVE TRAIN - The invention relates to a method for operating an automotive drive train comprising at least one automatic transmission and one drive unit. According to said method, a starting speed is determined during starting of the motor vehicle, a starting process being triggered using the determined starting speed by closing a starting element, especially a starting clutch. According to the invention, the starting speed can be individually adjusted by a driver in such a manner that when the automatic transmission is in the selector position neutral, the engine speed of the drive unit can be determined by the driver by actuating the gas pedal and that once the automatic transmission is transferred from neutral to a selector position corresponding to forward gear or reverse gear the engine speed of the drive unit prevailing during the transfer is used as the starting speed. | 05-06-2010 |
| 20100137103 | SHIFT CONTROL DEVICE AND SHIFT CONTROL METHOD FOR AUTOMATIC TRANSMISSION - An electronic control unit is provided with two types of gear change maps: a first gear change map based on the vehicle speed and the accelerator pedal operation amount; and a second gear change map based on the vehicle speed and the required drive force of the vehicle. The electronic control unit determines whether the automatic transmission should downshift with reference to the first gear change map, and determines whether the automatic transmission should upshift with reference to the second gear change map. | 06-03-2010 |
| 20110183809 | SHIFT CONTROL SYSTEMS AND METHODS FOR AN AUTOMATIC TRANSMISSION - A transmission shift control system includes a transmission shift control module that executes an upshift or a closed-throttle downshift, a shift stage determination module, and a clutch control module. The stage determination module determines a stage of the upshift or the closed throttle downshift when a downshift is requested. The clutch control module determines a downshift type based on the stage of the upshift or the closed throttle downshift and selectively executes a downshift before the upshift or the closed throttle downshift is completed. | 07-28-2011 |
| 20110183810 | METHOD AND SYSTEM FOR ADAPTIVE CONTINUOUSLY VARIABLE TRANSMISSION GEAR RATIO CONTROL - An automobile comprising a continuously variable transmission (“CVT”) system including an acceleration input device, a CVT, and a processor. The acceleration input device generates acceleration input data indicating an amount of change in the acceleration input device, and a rate of change in the acceleration input device. The CVT includes a power source and a transmission output system. The power source operates at a transmission input speed, while the transmission output system operates at a transmission output speed. The transmission input speed over the transmission output speed comprises a gear ratio. The processor analyzes the acceleration input data to determine a target gear ratio. The processor can instruct the CVT to change the gear ratio to the target gear ratio at a rate corresponding to the rate of change in the acceleration input device. | 07-28-2011 |
| 20120316032 | VEHICLE CONTROL SYSTEM AND VEHICLE CONTROL METHOD - An engine and an automatic transmission are controlled by any one of automatic gear shift control that controls the engine based on a target engine torque based on a target driving force based on an accelerator open degree and a vehicle speed of a vehicle and controls a gear shift of the automatic transmission based on a gear shift instruction determined based on the target driving force, and manual gear shift control that controls a gear shift of the automatic transmission based on a gear shift instruction in response to an operation of a gear shift operation device performed by a driver as well as controls the engine based on the target engine torque which is determined based on the accelerator open degree and the vehicle speed so that a change of acceleration by the gear shift becomes larger than that at the time of automatic gear shift control. | 12-13-2012 |
| 20130109534 | CONTROLLING GEARSHIFTING TO RPEVENT POWERTRAIN HUNTING | 05-02-2013 |
| 20140302966 | METHOD FOR OPTIMISED LAUNCH OF A VEHICLE - A method for optimised launch of a vehicle is provided wherein a driveline of the vehicle at least includes an engine, an automatic transmission, a system for exhaust gas recirculation, which are controlled by a driveline management system, wherein the management system is able to determine the mass of the vehicle, and whereby a launching, gear of the transmission is calculated dependent at least on the determined mass of the vehicle, whereby a launching gear is chosen dependent of the power loss caused by the EGR and wherein the power loss caused by the EGR is determined, the available power to launch the vehicle is determined, and the launching gear is recalculated dependent of the available power, and selecting said recalculated launching gear before launch of the vehicle, launch the vehicle with the recalculated launching gear. | 10-09-2014 |
| 20140315686 | AUTOMATIC TRANSMISSION CONTROL DEVICE - In a control apparatus for an automatic transmission in which a read-ahead vehicle speed which is a future vehicle speed is estimated on a basis of an acceleration and an actual vehicle speed and a gear shift control is carried out on a basis of the read-ahead vehicle speed and other driving parameters, a start of an up-shift is inhibited even if a determination of the up-shift is made for a predetermined time after a down-shift in a coast state has occurred and executing the up-shift after the predetermined time is elapsed. Consequently, while an unpleasant feeling given to a driver is suppressed, an appropriate gear shift is executable. | 10-23-2014 |
| 20150307098 | VEHICLE CONTROL APPARATUS - A vehicle control apparatus is disclosed, which includes a processing device that calculates a target acceleration such that a vehicle speed of a vehicle, which includes a continuously variable transmission, becomes a target vehicle speed; sets a threshold for a change amount of an engine rpm based on the target acceleration; and controls the engine rpm such that the change amount of the engine rpm does not exceed the threshold. | 10-29-2015 |
