Matches 1 - 7 out of 7


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US20130196818 METHOD FOR CHECKING AN EMERGENCY CONDITION IN A TRANSMISSION SYSTEM  
A method of monitoring an emergency condition in an automatic transmission, with which, by comparing a theoretical with an actual rotational speed, measured on the transmission input side, overlap...
US20080287253 Variable Displacement Engine Powertrain Fuel Economy Mode  
A vehicle drive system comprising of a variable displacement engine including a plurality of cylinders, where at least one of the plurality of cylinders selectively deactivates to decrease engine...
US20140200113 COASTING DOWNSHIFT CONTROL DEVICE FOR AUTOMATIC TRANSMISSION  
Under a specified condition where a torque converter is kept in a lockup state to prolong the fuel-cutoff time, because of vehicle coasting with an accelerator opening APO=0, a downshift command...
US20140302965 HYDRAULIC CONTROL DEVICE AND CONTROL METHOD OF HYDRAULIC CONTROL DEVICE  
In hydraulic control, an electronic control unit controls controlled hydraulic pressure of a control valve in order to control a hydraulic oil amount in a torque converter and a hydraulic oil...
US20160114780 METHODS AND SYSTEM FOR IMPROVING HYBRID VEHICLE GEAR SHIFTING  
Systems and methods for improving gear shifting of a step-ratio automatic transmission in a hybrid vehicle are presented. The systems and methods may provide for adjusting torque capacity of one...
US20150072833 METHOD AND SYSTEM FOR OPERATING A VEHICLE POWERTRAIN  
A system and method for operating a vehicle powertrain are described. In one example, a torque converter that has a variable K factor is adjusted to improve vehicle operation. The system and...
US20140031170 METHOD AND SYSTEM FOR OPERATING A VEHICLE POWERTRAIN  
A system and method for operating a vehicle powertrain are described. In one example, a torque converter that has a variable K factor is adjusted to improve vehicle operation. The system and...
Matches 1 - 7 out of 7