Patent application number | Description | Published |
20100261578 | Friction Element Load Sensing in an Automatic Transmission - A load sensor assembly for measuring an amount of torque transmitted through a torque establishing element includes a core mounted on a transmission housing and a load sensor mounted on the core. The load sensor is positioned against a portion of the torque establishing element whereby a portion of the amount of torque transmitted through the torque establishing element travels through the load sensor and is measured. A cable is connected to the load sensor for transmitting a signal representative of the amount of torque to a transmission controller. | 10-14-2010 |
20100262344 | Closed-Loop Torque Phase Control for Shifting Automatic Transmission Gear Ratios Based on Friction Element Load Sensing - A closed loop shift control apparatus and method based on friction element load controls a torque transfer phase when shifting from a low gear configuration to a high gear configuration for an automatic transmission system. When pressure actuated friction elements are selectively engaged and released to establish torque flow paths in the transmission, measurements or estimates of torsional load exerted on the off-going friction element are used to predict the optimal off-going friction element release timing for achieving a consistent shift feel. The ideal timing to release the off-going friction element is uniquely defined when torque load exerted onto the off-going friction element becomes substantially zero. An on-coming clutch engagement process is controlled by a closed loop control based on measurements or estimates of on-coming clutch torque capacity for a constant shift feel under dynamically changing conditions. | 10-14-2010 |
20130116090 | Friction Element Load Sensing in an Automatic Transmission - A load sensor assembly for measuring an amount of torque transmitted through a torque establishing element includes a core mounted on a transmission housing and a load sensor mounted on the core. The load sensor is positioned against a portion of the torque establishing element whereby a portion of the amount of torque transmitted through the torque establishing element travels through the load sensor and is measured. A cable is connected to the load sensor for transmitting a signal representative of the amount of torque to a transmission controller. | 05-09-2013 |
20130292195 | METHODS AND SYSTEMS FOR A VEHICLE DRIVELINE POWER TAKE OFF - Systems and methods for improving operation of a power take off are presented. In one example, the power take off may be rotated in two different directions. The approaches may improve operation of a power take off device. | 11-07-2013 |
20130296098 | METHODS AND SYSTEMS FOR A VEHICLE DRIVELINE CONTROL DURING VARYING DRIVING CONDITIONS - Systems and methods for improving operation of a hybrid vehicle are presented. In one example, driveline operating modes may be adjusted in response to driving surface conditions. The approaches may improve vehicle drivability and reduce driveline degradation. | 11-07-2013 |
20130296101 | METHODS AND SYSTEMS FOR A FOUR WHEEL DRIVE VEHICLE DRIVELINE - Systems and methods for improving operation of a hybrid vehicle are presented. In one example, driveline operation may be adjusted in response to operating the hybrid vehicle in a four wheel drivel low gear range. The approaches may improve vehicle drivability and reduce driveline degradation. | 11-07-2013 |
20130296102 | METHODS AND SYSTEMS FOR EXTENDING REGENERATIVE BRAKING - Systems and methods for improving operation of a hybrid vehicle are presented. In one example, an electrical load may be automatically activated to consume electrical energy produced during driveline braking so that driveline braking may be extended. The electrical load may be a windscreen heater or other device. | 11-07-2013 |
20130296118 | METHODS AND SYSTEMS FOR A VEHICLE DRIVELINE - Systems and methods for improving operation of a hybrid vehicle are presented. In one example, driveline operating modes may be manually selected to improve hybrid driveline operation during off road conditions. The approaches may improve vehicle drivability and reduce driveline degradation. | 11-07-2013 |
20130296124 | METHODS AND SYSTEMS FOR A DRIVELINE DUAL MASS FLYWHEEL - Systems and methods for improving operation of a hybrid vehicle are presented. In one example, compensation is provided for a dual mass flywheel positioned in a vehicle driveline. The approaches may reduce driveline torque disturbances. | 11-07-2013 |
20130296125 | METHODS AND SYSTEMS FOR OPERATING A DRIVELINE CLUTCH - Systems and methods for improving operation of a hybrid vehicle are presented. In one example, operation of a driveline disconnect clutch is adjusted to compensate for clutch wear and manufacturing tolerances. | 11-07-2013 |
20130296130 | METHODS AND SYSTEMS FOR TRANSITIONING BETWEEN BRAKING MODES - Systems and methods for improving operation of a hybrid vehicle are presented. In one example, a method for transitioning between driveline braking and wheel brakes is provided. | 11-07-2013 |
20130296136 | METHODS AND SYSTEMS FOR A VEHICLE DRIVELINE - Systems and methods for improving operation of a hybrid vehicle are presented. In one example, driveline disconnect clutch operation is adjusted in response to vehicle mass so that the vehicle may operate similarly at lower and higher vehicle masses. | 11-07-2013 |
20130297123 | METHODS AND SYSTEMS FOR REDUCING GEAR LASH NOISE - Systems and methods for improving operation of a hybrid vehicle are presented. In one example, driveline gear lash gear tooth to gear tooth impact may be reduce via adjusting operation of an electric machine. | 11-07-2013 |
20130297161 | METHODS AND SYSTEMS FOR HOLDING A VEHICLE STOPPED ON A HILL - Systems and methods for improving operation of a hybrid vehicle are presented. In one example, a holding force of a vehicle parked on a hill is adjusted depending on a grade of the hill. | 11-07-2013 |
20140046529 | METHODS AND SYSTEMS FOR OPERATING A DRIVELINE DISCONNECT CLUTCH - Systems and methods for improving operation of a hybrid vehicle are presented. In one example, application of a driveline disconnect clutch to start an engine is described. The approach applies the driveline disconnect clutch to rotate an engine and at least partially disengages the driveline disconnect clutch to reduce the possibility of a reduction in torque applied to vehicle wheels. | 02-13-2014 |
20140100727 | METHOD AND SYSTEM FOR OPERATING A HYBRID POWERTRAIN - A method and a system for improving operation of a hybrid vehicle are presented. In one example, operation of a hybrid driveline is adjusted in response to driving conditions that may cause wheel slip or a stuck vehicle. The approach may reduce driveline wear and improve vehicle drivability. | 04-10-2014 |
20140163788 | METHOD AND SYSTEM FOR IMPROVING HYBRID VEHICLE SHIFTING - A method and a system for improving operation of a hybrid vehicle are presented. In one example, torque converter impeller torque from beginning to end of transmission shifting is adjusted in response to variable driveline inertia. The approach may improve transmission shifting and reduce driveline torque disturbances. | 06-12-2014 |
20150051045 | METHODS AND SYSTEMS FOR VEHICLE DRIVELINE TORQUE ESTIMATION - Systems and methods for improving hybrid vehicle torque control are presented. The system and methods included may estimate driveline torque via springs of a dual mass flywheel. The estimated driveline torque may provide feedback for adjusting operation of a driveline disconnect clutch and/or engine torque. | 02-19-2015 |
20150065298 | METHODS AND SYSTEMS FOR A VEHICLE DRIVELINE - Systems and methods for improving operation of a hybrid vehicle are presented. In one example, driveline disconnect clutch operation is adjusted in response to vehicle mass so that the vehicle may operate similarly at lower and higher vehicle masses. | 03-05-2015 |
20150081154 | METHODS AND SYSTEMS FOR A VEHICLE DRIVELINE CONTROL DURING VARYING DRIVING CONDITIONS - Systems and methods for improving operation of a hybrid vehicle are presented. In one example, driveline operating modes may be adjusted in response to driving surface conditions. The approaches may improve vehicle drivability and reduce driveline degradation. | 03-19-2015 |