Patent application number | Description | Published |
20120059571 | ENGINE AUTO-STOP VEHICLE AND CONTROL METHOD THEREFOR - A controller actuates an electrical oil pump when an idle stop condition or a coast stop condition holds and causes the actuation of the electrical oil pump to continue without being stopped until an accelerated state of a vehicle or a driver's intention to accelerate is determined even if the idle stop condition and the coast stop condition no longer holds thereafter. | 03-08-2012 |
20120060485 | HYDRAULIC CONTROL DEVICE, CONTROL METHOD OF THEREOF, AND AUTOMATIC TRANSMISSION - A hydraulic control device includes an oil pump for generating a hydraulic pressure by being rotated by power of a driving force source, a driving force source stopping unit that stops rotation of the driving force source when a predetermined condition holds, and a cut-off unit that cuts off transmission of the power from the driving force source to the oil pump when the driving force source rotates in a reverse direction as the rotation of the driving force source is stopped by the driving force source stopping unit. | 03-15-2012 |
20120060486 | HYDRAULIC CONTROL DEVICE, CONTROL METHOD OF THEREOF, AND AUTOMATIC TRANSMISSION - A hydraulic control circuit includes an oil pump for generating a hydraulic pressure by being rotated by power of a driving force source, a line pressure oil passage in which at least a line pressure generated by adjusting the hydraulic pressure generated by the oil pump is supplied, a driving force source stopping unit that stops the rotation of the driving force source, and a hydraulic pressure reduction suppressing unit that is provided in the line pressure oil passage and suppresses a reduction of the line pressure accompanying reverse rotation of the driving force source when the rotation of the driving force source is stopped by the driving force source stopping unit. | 03-15-2012 |
20120083388 | COAST STOP VEHICLE AND CONTROL METHOD THEREOF - A coast stop vehicle which stops an engine during the travel of the vehicle is provided with a variator including a pair of pulleys and a belt mounted between the pulleys and capable of continuously changing a speed ratio. A controller judges whether or not coast stop conditions to stop the engine during the travel of the vehicle hold, stops the engine when the coast stop conditions hold, and prevents the speed ratio from being upshifted to a higher side than a speed ratio at the time of starting the coast stop control during the coast stop control. | 04-05-2012 |
20120135840 | COAST STOP VEHICLE AND CONTROL METHOD FOR COAST STOP VEHICLE - A coast stop vehicle, includes an engine, a transmission arranged between the engine and drive wheels and having a plurality of gear positions, a coast stop starting unit which automatically stops the engine when a coast stop start condition holds during travel, a coast stop releasing unit which automatically starts the engine when a coast stop release condition holds during a coast stop, and a downshifting unit which starts engagement of a frictional engagement element, which realizes a lower gear position than the one when the coast stop release condition holds, before complete explosion of the engine and causes a downshift of the transmission when the coast stop release condition holds. | 05-31-2012 |
20120135841 | COAST STOP VEHICLE AND CONTROL METHOD FOR COAST STOP VEHICLE - A coast stop vehicle includes a hydraulic pressure supplying unit which supplies a hydraulic pressure to the transmission while the engine is stopped, a coast stop start condition judging unit which judges whether or not a coast stop start condition holds, a coast stop control unit which stops the engine when the coast stop start condition is judged to hold by the coast stop start condition judging unit and starts the engine when receiving an acceleration request from a driver during the coast stop, a transmission control unit which causes a downshift of the transmission when receiving the acceleration request from the driver during the coast stop, and a hydraulic control unit which supplies the hydraulic pressure to an after-shift frictional engagement element which realizes a gear position after the downshift of the transmission during the coast stop. | 05-31-2012 |
20120142494 | COAST STOP VEHICLE AND CONTROL METHOD THEREOF - A coast stop vehicle which executes coast stop control for stopping an engine during the travel of a vehicle, is provided with a frictional engagement element provided between the engine and a driving wheel, a first deceleration calculating unit which calculates first deceleration, which is rotation deceleration of a rotation shaft on the driving wheel side of the frictional engagement element, and an engagement-state control unit which controls an engagement state of the frictional engagement element so that decrease of the engine rotation speed is suppressed on the basis of the first deceleration while the coast stop control is executed. | 06-07-2012 |
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 |