Abstract: A gaseous fuel supply system for an internal combustion engine may include a storage tank for storing liquefied gaseous fuel and supplying the fuel to the engine. The system may also include a liquid level sensor for measuring a level value of the liquefied gaseous fuel in the storage tank and a pressure sensor for measuring a pressure value of gaseous fuel in the fuel supply system. The system may further include a controller. The controller may be configured to: monitor a pressure signal of the pressure sensor indicating the pressure value and a tank level signal of the liquid level sensor indicating the level value; store the level value when the pressure value indicates the storage tank is empty; store the level value when the pressure value or the level value indicates the storage tank is full; and determine a calibrated level range based on the stored level values.

Abstract: A gaseous fuel supply system for an internal combustion engine may include a storage tank for storing liquefied gaseous fuel and supplying the fuel to the engine. The system may also include a liquid level sensor for measuring a level value of the liquefied gaseous fuel in the storage tank and a pressure sensor for measuring a pressure value of gaseous fuel in the fuel supply system. The system may further include a controller. The controller may be configured to: monitor a pressure signal of the pressure sensor indicating the pressure value and a tank level signal of the liquid level sensor indicating the level value; store the level value when the pressure value indicates the storage tank is empty; store the level value when the pressure value or the level value indicates the storage tank is full; and determine a calibrated level range based on the stored level values.

Abstract: A system may comprise a load sensor; a camera; and an electronic control module. The load sensor may configured to detect a load placed on a vehicle that is to travel along a path. The camera may be associated with the vehicle and may be configured to capture an image of the load placed on the vehicle. The electronic control module may configured to receive, from the load sensor, information indicating that the load has been placed on the vehicle, cause the camera to capture the image of the load based on receiving the information indicating that the load has been placed on the vehicle, determine whether the height of the load exceeds a height of a trolley line included in the path, and provide, for display by a display of the vehicle, information indicating whether the height of the load exceeds the height of the trolley line.

Abstract: A control system for a machine having a brake is disclosed. The control system may include an operator interface configured to receive inputs from an operator of the machine, and output data to the operator of the machine, and a controller in communication with the operator interface. The controller may be configured to monitor operator inputs received by the operator interface, monitor a speed of the machine, and send a signal to the operator interface to notify the operator to apply the brake based at least in part on the operator inputs and the speed of the machine.

Abstract: A system for monitoring operation of a retarding grid associated with a traction motor of a machine includes a pressure sensor and a temperature sensor for measuring atmospheric pressure and temperature in real time. The system further includes a controller that determines a current air density on the basis of the measured atmospheric pressure and temperature. The controller then determines a threshold retarding power limit for the retarding grid on the basis of the current air density; and a threshold torque limit for the traction motor on the basis of the determined threshold retarding power limit and a current wheel speed of the machine. The controller determines a current retarding torque at the traction motor, and selectively generates a warning signal to an operator of the machine on the basis of the threshold torque limit determined for the traction motor and the current retarding torque at the traction motor.

Abstract: A control system for a machine having a brake is disclosed. The control system may include an operator interface configured to receive inputs from an operator of the machine, and output data to the operator of the machine, and a controller in communication with the operator interface. The controller may be configured to monitor operator inputs received by the operator interface, monitor a speed of the machine, and send a signal to the operator interface to notify the operator to apply the brake based at least in part on the operator inputs and the speed of the machine.

Abstract: The disclosure describes, in one aspect, a system for a machine having an electric drive configuration. The system includes an electric motor associated with at least one wheel and adapted to provide retarding torque to the wheel, and a controller configured to determine a power measurement of a retarding grid and control the retarding torque to the at least one wheel during retarding as a function of the power measurement.

Abstract: The disclosure describes, in one aspect, a system for a machine having an electric drive configuration. The system includes an electric motor associated with at least one wheel and adapted to provide retarding torque to the wheel, and a controller configured to determine a power measurement of a retarding grid and control the retarding torque to the at least one wheel during retarding as a function of the power measurement.

Abstract: In an embodiment of the invention there is provided a pulse circuit including two transmission lines or other capacitive energy storage circuits resonantly charged by inductors and diodes that are connected to a DC power source. The pulse circuit includes a pulse transformer that may be connected in series with the transmission lines or artificial lines with a turns ratio chosen to match the load impedance to primary circuit impedance or to generate the optimum pulsed voltage source. Multiple switches can be employed to increase the repetition frequency of the pulses. For transmission lines and L-C artificial lines, the pulse alternates in polarity; for simple capacitive energy storage, the pulses are unipolar.