| Patent Number |
Title Of Patent |
Date Issued |
| RE38632 |
Propulsion control apparatus and method for a paver |
October 19, 2004 |
| An apparatus is disclosed for controlling the propulsion and steering of a machine. The machine includes a hydrostatic system that drives a pair of ground engaging traction devices. An electronic controller receives operator signals indicative of a desired travel speed and direction, and |
| 7162916 |
Method and system for determining engine cylinder power level deviation from normal |
January 16, 2007 |
| Individual cylinder output deviations from a normal operating engine cylinder are detected via an analysis of crank shaft speed fluctuations. In the detection phase, the engine is operated at a steady state low idle condition, and engine speed data is collected over a plurality of engine |
| 6510731 |
Method for determining a weak cylinder in an internal combustion engine |
January 28, 2003 |
| A method for determining a condition of a cylinder in an internal combustion engine having a plurality of cylinders. The method includes the steps of reducing an amount of power being generated by a first cylinder, increasing an amount of power being generated by each of the remaining |
| 6027177 |
Method and an apparatus for controllably releasing a mechanical brake on a hydrostatic machine |
February 22, 2000 |
| A controllable mechanical brake release system for controllably releasing a mechanical brake included in a hydrostatic machine is disclosed. In the preferred embodiment the hydrostatic machine is located on an incline. The mechanical brake is included in a mechanical braking system. The |
| 5924509 |
Traction control apparatus and method for a hydrostatically driven work machine |
July 20, 1999 |
| A traction control apparatus for a work machine having an engine and a hydrostatic drive system that powers a first and second set of ground engaging traction devices is disclosed. The hydrostatic drive system includes a variable displacement pump being rotatably driven by the engine |
| 5895172 |
Control system and method for operating an asphalt paver screed burner system |
April 20, 1999 |
| In one aspect of the present invention, an automatic screed temperature control is disclosed. The control senses the screed temperature and compares the screed temperature to a lower set point. In response to the screed temperature being less than the lower set point, the control causes |
| 5873427 |
Method and apparatus for controlling a load of an engine associated with a hydrostatic drive sys |
February 23, 1999 |
| An apparatus for controlling the load of an engine associated with a hydrostatic drive system is disclosed. The apparatus includes a variable displacement pump rotatably driven by the engine. The apparatus modifies a pump displacement command signal in response to the actual and desired |
| 5787374 |
Propulsion control apparatus and method for a paver |
July 28, 1998 |
| An apparatus is disclosed for controlling the propulsion and steering of a machine. The machine includes a hydrostatic system that drives a pair of ground engaging traction devices. An electronic controller receives operator signals indicative of a desired travel speed and direction, and |
| 5757158 |
Adaptive operator control for a compactor |
May 26, 1998 |
| A control device for operating a machine is disclosed. The control device includes a joystick having a central axis and being universally moveable along a first and second axis in a plane perpendicular to the central axis, and a rotatable operator control station that houses the joystick |
| 5607254 |
Method and apparatus for automatically controlling the temperature of an asphalt paver screed |
March 4, 1997 |
| In one aspect of the present invention, an automatic screed temperature control is disclosed. The control senses the screed temperature and compares the screed temperature to a lower set point. In response to the screed temperature being less than the lower set point, the control causes |
| 5576962 |
Control system and method for a hydrostatic drive system |
November 19, 1996 |
| An apparatus for controlling the load of an engine associated with an hydrostatic drive system is disclosed. The apparatus modifies a pump displacement command signal in response to the actual and desired engine acceleration. The modified pump displacement command signal is used to c |
| 5575583 |
Apparatus and method for controlling the material feed system of a paver |
November 19, 1996 |
| An apparatus for controlling a material feed system of a paver is disclosed. The material feed system includes a feeder conveyor and a spreader auger. The apparatus includes a sensor that monitors the amount of material at the edge of the screed and responsively produces an actual ma |
| 5568992 |
Screed control system for an asphalt paver and method of use |
October 29, 1996 |
| In one aspect of the present invention, a control system for a floating screed assembly for an asphalt paving machine is disclosed. The screed assembly includes a main screed and extension screed unit. An electrohydraulic device extends and retracts, as well as, raises and lowers the |
| 4905120 |
Driver circuit for solenoid operated fuel injectors |
February 27, 1990 |
| A driver circuit for first and second coils includes first and second selector switches coupled in series between first terminals of the coils and a first common junction, first and second diodes coupled in series between second terminals of the first and second coils, respectively, and |
