Patent application number | Description | Published |
20110224879 | OIL PRESSURE CONTROL DEVICE FOR TRANSMISSION AND CONTROL METHOD THEREOF - An oil pressure control device for a transmission engages or disengages a frictional engagement element of the transmission by controlling an oil pressure supplied from a mechanical oil pump driven by a power source for driving a vehicle and an electric oil pump driven by an electric motor, and includes: an air entering determining unit which determines whether or not air enters the electric oil pump; and an air discharging unit which, when an ignition switch of the power source is switched from an ON state to an OFF state after the air entering determining unit has determined that air enters the electric oil pump, drives the electric oil pump such that the air entering the electric oil pump is discharged from the electric oil pump together with an oil. | 09-15-2011 |
20120035817 | IDLE STOP VEHICLE AND CONTROL METHOD THEREOF - An idle stop vehicle performs an idle stop to automatically stop an engine during a stop of the vehicle. The vehicle includes an idle stop condition determination unit for determining whether or not an idle stop condition holds, and an engine control unit for performing the idle stop when the idle stop condition holds before a stoppage time exceeds a specified time and prohibiting the idle stop after the stoppage time exceeds the specified time without the idle stop condition holding. | 02-09-2012 |
20120135837 | VEHICLE CONTROL SYSTEM AND CONTROL METHOD THEREOF - A time required until the friction element is completely engaged is delayed when a switch from a non-driving position to a driving position is detected or when the engine automatic stop condition no longer holds until the differential rotation of the friction element disappears after the engine automatic stop condition holds as compared with the case where the switch from the non-driving position to the driving position is detected or the engine automatic stop condition no longer holds after the differential rotation of the friction element disappears. | 05-31-2012 |
20120302402 | AUTOMATIC TRANSMISSION AND HYDRAULIC CONTROL METHOD THEREFOR - A transmission controller operates an electrical oil pump in a steady mode, in which an operating load of the electrical oil pump is set at a steady load, during an idle stop, but operates the electrical oil pump in a high-pressure mode, in which the operating load of the electrical oil pump is higher than the steady load, for a predetermined period when an engine stops rotating. | 11-29-2012 |
20130151109 | VEHICLE CONTROL DEVICE AND VEHICLE CONTROL METHOD - A vehicle control device controls a vehicle including a first oil pump adapted to be driven by power generated by a first drive source, automatically stop when a predetermined condition is satisfied, and supply oil to a power transmission unit and a second oil pump adapted to supply oil to the power transmission unit when the drive source is in an automatically stopped state, and includes a control unit adapted to continue an automatic stop until it is determined to restart the first drive source based on a parameter with which a reduction in drive force responsiveness to a drive force request from a driver, not including the stop of the first drive source, can be determined after an automatic stop command of the first drive source is output and if there is an abnormality in the second oil pump. | 06-13-2013 |
20130260929 | CONTROL DEVICE AND CONTROL METHOD FOR CONTINUOUSLY VARIABLE TRANSMISSION - The present invention is provided with a hydraulic control circuit including a hydraulic pump driven by a driving power source in order to supply an oil pressure to a hydraulic circuit, a hydraulic auxiliary unit for supplying an accumulated oil pressure to the hydraulic circuit, and a control valve for supplying at least one of oil pressures of the hydraulic pump and the hydraulic auxiliary unit to pulleys, and a control unit for executing a coast stop control to stop the driving power source while traveling and controlling, when an increase of torque inputted to the continuously variable transmission is detected or predicted during the coast stop control, the control valve so as to supply an oil pressure of the hydraulic auxiliary unit to the pulleys. | 10-03-2013 |
20130260960 | CONTROL DEVICE AND CONTROL METHOD FOR CONTINUOUSLY VARIABLE TRANSMISSION - A control device for continuously variable transmission is composed of a continuously variable transmission mechanism and friction engagement elements, and includes a control unit for decreasing, during a coast stop control to stop a driving power source in a traveling state of a vehicle, a transmission torque capacity transmittable by the friction engagement elements to fall under a belt capacity being torque transmittable by a belt using a holding force of pulleys. | 10-03-2013 |
20140207347 | VEHICLE CONTROL DEVICE - A vehicle control device for controlling a vehicle including a first power transmission mechanism arranged between a drive source and a drive wheel, and a second power transmission mechanism which is arranged in series with the first power transmission mechanism and which changes a speed ratio between an input shaft and an output shaft, includes slip detection means configured to detect whether or not a slip occurs in the first power transmission mechanism, and shift means configured to reduce the slip by shifting the second power transmission mechanism in a case where occurrence of the slip is detected by the slip detection means. | 07-24-2014 |
20140207348 | COAST STOP VEHICLE - A coast stop vehicle includes power transmission means provided between a drive source and drive wheels, drive source automatic stop means configured to stop the drive source during vehicle running when a value indicating a driving state of the vehicle is in a drive source stop permission region, slip determination means configured to determine whether or not there is slip in the power transmission means while the drive source is stopped by the drive source automatic stop means, and a changer means configured to narrow the drive source stop permission region when the occurrence of the slip in the power transmission means was determined by the slip determination means. | 07-24-2014 |