Patent application number | Description | Published |
20130244832 | CONTROL SYSTEM HAVING POWERTRAIN LOCK - A powertrain control system is disclosed for use with a mobile machine. The powertrain control system may have an engine, and a continuously variable transmission operatively coupled to the engine. The powertrain control system may also have an operator input device configured to generate a signal indicative of a desired speed of the engine, a feature selector usable by an operator to select activation of a powertrain control feature, and a controller in communication with the engine, the continuously variable transmission, the operator input device, and the feature selector. The controller may be configured to make a determination that the operator has selected activation of the powertrain control feature via the feature selector, lock a speed of the engine based on the determination and the signal, and lock a torque output of the continuously variable transmission based on the determination and the locked speed of the engine. | 09-19-2013 |
20130256052 | ROLLBACK PREVENTION SYSTEM FOR MOBILE MACHINE - A rollback prevention system is disclosed for use with a mobile machine. The rollback prevention system may have an input device configured to receive an input indicative of a desired travel direction, a travel sensor configured to generate a signal indicative of an actual travel direction, and a brake sensor configured to generate a signal indicative of a brake activation status. The rollback prevention system may also have a controller configured to make a determination that the actual travel direction of the mobile machine is opposite the desired travel direction, and to selectively increase a torque output of the transmission to a first level based on the determination. The controller may also be configured to reduce the torque output below the first level when the signal indicates brake activation, and to return the torque output to the first level when the signal indicates brake deactivation. | 10-03-2013 |
20130261909 | ROLLBACK PREVENTION SYSTEM FOR MOBILE MACHINE - A rollback prevention system is disclosed for use with a mobile machine having an engine and a transmission. The rollback prevention system may have an input device configured to receive an input indicative of a desired travel direction of the mobile machine, a sensor configured to generate a signal indicative of an actual travel direction of the mobile machine, and a controller in communication with the input device, the sensor, the engine, and the transmission. The controller may be configured to make a determination that the actual travel direction of the mobile machine is opposite the desired travel direction based on the signal, and determine a load on the transmission. The controller may also be configured to selectively increase a torque output of the transmission based on the determination only when the load on the transmission is less than a threshold value. | 10-03-2013 |