CATERPILLAR PAVING PRODUCTS Patent applications |
Patent application number | Title | Published |
20140064847 | System and Method for Screed Endgate Control - A system and method for controlling operation of an endgate of a screed paving machine using a control device is disclosed. The at least one control device may have a plurality of endgate controls and may be employed for issuing commands to a controller by an operator for controlling operation of the at least one endgate and operate the at least one endgate in an up mode and a down mode, changing the fore/aft pitch of the at least one endgate in tilt-up and tilt-down modes and operating the at least one endgate in auto-on and auto-off modes. | 03-06-2014 |
20140053801 | Autoadaptive Engine Idle Speed Control - A machine engine idle speed control system may include an automated autoadaptive mode to supplement typical economy and normal power modes. The autoadaptive mode may afford an operator with an automated option to optimize fuel economy and lower engine/machine noise. The autoadaptive mode may initially default to a typical lower engine idle speed of the economy mode. However, as the machine workload rises, demands on the engine may become greater, and at a predetermined threshold of engine workload the engine idle speed may be automatically increased to a higher set point. The engine control may then remain at the higher idle speed until engine load is reduced to some predetermined target, and/or after a certain time period has elapsed. The time period may be controlled by a configurable delay timer to avoid unnecessary/undesirable cycling between modes. In addition, an operator may always intervene to increase or decrease engine idle speed. | 02-27-2014 |
20130333664 | Engine Speed Management Control System for Cold Planers - An engine speed management control system for machines such as cold planers to regulate the idle engine speed as components of the machine are operated to perform functions while the engine is idling. An auto engine speed control routine may determine a combination of active functions of the components being performed and a corresponding idle engine speed to generate sufficient power and pressurized fluid flow to perform the functions. Upon detecting a change in the combination of active functions, the algorithm may change the idle engine speed as dictated by the new combination, or may wait for a specified delay period to determine whether further changes occur to the combination of active functions. | 12-19-2013 |
20130103268 | Automatic Ground Contact Pressure System for Pneumatic Compactor - A ground contact pressure controller may be configured to automatically manage tire inflation pressure in a pneumatic compactor machine. The controller may determine a target tire inflation pressure for the machine according to the parameters of, inter alia, machine weight, number of tires on the machine, ground contact area of the tires, compaction surface type, and ambient temperature. The machine may include a compressor and vent unit coupled to the pneumatic tires, and the compressor and vent unit may be configured to adjust the tire pressure of the pneumatic tires according to a target tire pressure. A unified pressure subsystem coupled to the compressor and vent unit may be configured to measure pressure of the tires, and to adjust tire pressure to the target pressure. | 04-25-2013 |
20130006483 | Vibratory Frequency Selection System - A controller for use in a vibratory work machine may include a vibratory frequency selection system having a user interface with a discrete amplitude selection input device and a discrete frequency selection input device. The controller may receive a frequency selection signal from the frequency input device and generate a frequency control signal having a characteristic corresponding to the frequency setting of the input device. The controller may also receive an amplitude selection signal from the amplitude input device and output at least the frequency control signal to cause a vibrator mechanism of the machine to generate vibrations having a frequency and amplitude corresponding to the settings of the input devices | 01-03-2013 |