Patent application number | Description | Published |
20090204292 | Traction control system - A traction control system ( | 08-13-2009 |
20100025167 | Braking system for an off-highway machine involving electric retarding integrated with service brakes - The disclosure describes, in one aspect, a method of braking a machine having an electric drive configuration. The electric drive configuration includes at least one electric retarding system connected to a first set of wheels. Additionally, a first friction brake system connects to the first set of wheels to provide a braking output torque. A second friction brake system connects to a second set of wheels and provides a second braking output torque. The system calculates and applies a braking ratio between the electric and friction braking systems based upon both user controls and conditions encountered. | 02-04-2010 |
20100057270 | Brake cooling fluid diverter for an off-highway machine - The disclosure relates, in one aspect, to a friction brake cooling system for a machine. The cooling system includes at least one pump connected to at least one reservoir containing cooling fluid. A controller is configured to divert a cooling fluid flow through a valve to a first friction brake system and to a second friction brake system based on the use of the systems. In another aspect, the disclosure relates to a method of cooling a first friction brake system and a second friction brake system including diverting a flow of brake cooling fluid to the systems based on the use of the systems. | 03-04-2010 |
20100070120 | Engine load management for traction vehicles - An electric drive system includes a fuel-driven engine ( | 03-18-2010 |
20110022276 | Method And System For Controlling A Driving Direction Of An Electric Drive Machine - The disclosure describes, in one aspect, a method for changing a direction of a machine that is moving in a first direction. The method includes the step of receiving a signal indicative of an intention to change the direction of the machine to a second direction. The method also includes the step of determining whether a signal indicative of a speed of the machine is greater than a threshold based at least in part on an electric motor parameter. Finally, the method includes the step of applying a braking torque to at least one travel mechanism of the machine in response to a signal indicative of an accelerator pedal position until the speed reaches the threshold. | 01-27-2011 |
20120116618 | SYSTEM AND METHOD FOR CONTROLLING TRACTION - A traction control system for a machine having an electric drive configuration is disclosed. The fraction control system includes an electric motor associated with at least one wheel and adapted to provide braking torque to the wheel. The control system further includes a controller configured to determine a rotational speed of the at least one wheel, compare the rotational speed to an allowable slide threshold, and adjust the braking torque to the at least one wheel during retarding if the speed is less than the allowable slide threshold. | 05-10-2012 |
20120116619 | SYSTEM AND METHOD FOR CONTROLLING WHEEL MOTOR TORQUE IN AN ELECTRIC DRIVE SYSTEM - The disclosure describes, in one aspect, a system for a machine having an electric drive configuration. The system includes a first motor associated with a first wheel, the first motor adapted to provide torque to drive the first wheel, a second motor associated with a second wheel, the second motor adapted to provide torque to drive the second wheel. The system further includes a controller adapted to determine a rotational speed of the first wheel, determine a rotational speed of the second wheel, determine a steering angle of the machine, compare the rotational speeds of the first and second wheels, and adjust the torque to the first wheel if the rotational speed of the first wheel is less than the rotational speed of the second wheel. | 05-10-2012 |
20120116627 | Engine load management for traction vehicles - An electric drive system includes a fuel-driven engine ( | 05-10-2012 |
20120247887 | Brake Cooling Fluid Diverter for an Off-Highway Machine - The disclosure relates, in one aspect, to a friction brake cooling system for a machine. The cooling system includes at least one pump connected to at least one reservoir containing cooling fluid. A controller is configured to divert a cooling fluid flow through a valve to a first friction brake system and to a second friction brake system based on the use of the systems. In another aspect, the disclosure relates to a method of cooling a first friction brake system and a second friction brake system including diverting a flow of brake cooling fluid to the systems based on the use of the systems. | 10-04-2012 |
20130057053 | Braking System for an Off-Highway Machine Involving Electric Retarding Integrated with Service Brakes - The disclosure describes, in one aspect, a method of braking a machine having an electric drive configuration. The electric drive configuration includes at least one electric retarding system connected to a first set of wheels. Additionally, a first friction brake system connects to the first set of wheels to provide a braking output torque. A second friction brake system connects to a second set of wheels and provides a second braking output torque. The system calculates and applies a braking ratio between the electric and friction braking systems based upon both user controls and conditions encountered. | 03-07-2013 |