Abstract: A power train control system for a mobile machine is disclosed. The power train control system has a power source configured to produce a power output, a transmission device operatively connected to receive the power output and propel the mobile machine, and a control module. The control module is configured to receive an indication of a power demand, receive an indication of a current travel speed of the mobile machine, and reference the power demand and the current travel speed with a power train efficiency map to determine a desired power source speed. The power train control system is also configured to control operation of the transmission device to bring a speed of the power source within a predetermined amount of the desired power source speed.

Abstract: A computerized electronic system (10) for use in conjunction with a fleet of vehicles for complying with pre- and post-trip vehicle inspection reporting requirements while improving fleet maintenance and operations efficiency. An on-board computer (OBC) (12) having integrated or interfaced communications capability is used to receive and store data input by the driver and maintenance personnel. The OBC (12) may electronically store at least the current driver's inspection report and previous driver's inspection report to satisfy regulatory requirements. A copy of these reports can be produced on the vehicle in either electronic or paper form as required by an inspector. A ground support system (GSS) (16) may receive certain inspection information from an OBC (12) on a real time basis and thereby is provided ready access to pertinent vehicle data.

Abstract: A remote system (10)/method for testing vehicle brake or brake system performance of vehicles (30) driving past a testing module (36) adjacent a test roadway (28A) is provided. Preferably, the system/method is associated with a typical highway weight station (14-22) and includes a brake testing area (28) located in series between the usual weight scales (18) and a ramp (22) back onto a highway.

Abstract: A brake control system/method for preventing or arresting and minimizing trailer-swing in an articulated vehicle (10) is provided. The control system/method senses or calculates values indicative of articulation angle (AA) and time derivatives thereof (dAA/dt, d.sup.2 AA/dt.sup.2) and processes same to sense conditions indicative of an incipient or initial trailer brake induced trailer-swing event.

Abstract: A brake control system/method for preventing or arresting and minimizing trailer-swing (FIG. 6) in an articulated vehicle (10) is provided. The control system/method senses or calculates values indicative of least one time derivative of trailer transverse movement and processes same to sense conditions indicative of an incipient or initial trailer brake induced trailer-swing event.