An agricultural work machine and a method for operating an agricultural work machine are disclosed. The agricultural work machine includes a driver assistance system, which comprises a memory for storing data, a computing device for processing the data stored in the memory, and a graphical interface. The computing device graphically displays an operating data field via the graphical interface, which represents a display range for a first operating parameter, and the current value for the first operating parameter in the operating data field. The computing device evaluates the first operating parameter over a portion of the display range according to an evaluation criterion that relates to a second operating parameter, evaluates the first operating parameter based on a relationship between the first operating parameter and the second operating parameter contained in a characteristic diagram system, and graphically displays the evaluation data determined in this manner in the operating data field.

This cruise control device enables more accurate prediction of running resistance and prevents worsening of fuel economy. In this device, a coasting prediction unit (12c) of an automatic cruise control device (12), which is for performing cruise control of the vehicle (1) on the basis of a resistance coefficient, predicts, on the basis of the resistance coefficient, the change in vehicle speed if the vehicle (1) were to coast; if the vehicle (1) does coast, a vehicle information acquisition unit (12b) acquires information about the detected vehicle speed; and a running resistance updating unit (12f) updates the value of the resistance coefficient on the basis of the information about the change in vehicle speed predicted by the coasting prediction unit (12c) and information about the vehicle speed acquired by the vehicle information acquisition unit (12b).

An object of the present invention is to provide a vehicle control apparatus and a vehicle control method capable of improving traceability when a speed reduction torque is applied. A vehicle control apparatus according to the present invention is configured to calculate the speed reduction torque to be generated on a vehicle based on an accelerator operation state and a front wheel slip angle. More specifically, when being brought into a turning state while a coasting torque is applied, the vehicle control apparatus makes a correction so as to reduce an absolute value of the coasting torque, thereby improving the traceability and the drivability.

A variety of methods, controllers and algorithms are described for controlling a vehicle to closely follow one another safely using automatic or partially automatic control. The described control schemes are well suited for use in vehicle platooning and/or vehicle convoying applications, including truck platooning and convoying controllers. In one aspect, a power plant (such as an engine) is controlled using a control scheme arranged to attain and maintain a first target gap between the vehicles. Brakes (such as wheel brakes) are controlled in a manner configured to attain and maintain a second (shorter) target gap. Such control allows a certain degree of encroachment on the targeted gap (sometimes referred to as a gap tolerance) before the brakes are actuated. The described approaches facilitate a safe and comfortable rider experience and reduce the likelihood of the brakes being actuated unnecessarily.

A device and method for adjusting vehicle fuel efficiency to responsive to an altered vehicle surface area are disclosed. An operation of the method receives vehicle surface data, which indicates a transition from a first vehicle drag coefficient value relating to a vehicle surface area to a second vehicle drag coefficient value relating to the altered vehicle surface area. A second plurality of powertrain parameter values associated with the second vehicle drag coefficient value are determined, and the method operates to transmit the second plurality of powertrain parameter values for adjusting of the vehicle fuel efficiency.

A device and method for adjusting vehicle fuel efficiency to responsive to an altered vehicle surface area are disclosed. An operation of the method receives vehicle surface data, which indicates a transition from a first vehicle drag coefficient value relating to a vehicle surface area to a second vehicle drag coefficient value relating to the altered vehicle surface area. A second plurality of powertrain parameter values associated with the second vehicle drag coefficient value are determined, and the method operates to transmit the second plurality of powertrain parameter values for adjusting of the vehicle fuel efficiency.

A method for determining driving resistance in an insufficient warm-up state includes measuring driving data including at least first rolling resistance when a vehicle travels to include at least one constant-speed driving section in an insufficient warm-up state and determining a second rolling resistance based on the first rolling resistance measured in the constant-speed driving section, wherein the second rolling resistance is a rolling resistance predicted in the sufficient warm-up state.

Systems, apparatuses, and methods herein relate to vehicle speed management. The apparatus includes a projection module structured to determine a future road load for a vehicle based on horizon data regarding an attribute of a route of the vehicle at a future location of the vehicle. The apparatus also includes a vehicle drafting module structured to determine a drafting road load for the vehicle based on drafting data regarding operation of a second vehicle. The apparatus further includes a vehicle speed management module structured to determine and provide a vehicle speed adjustment to an output device of the vehicle to at least one of facilitate and maintain a drafting arrangement between the vehicle and the second vehicle responsive to at least one of the future road load and the drafting road load.

A method estimates a torque of a heat engine in a vehicle hybrid transmission including at least a heat engine and an electric machine together or separately supplying a heat engine torque and heat engine torque intended for wheels of the vehicle. The method uses a measurement of a speed of the heat engine, a value of the heat engine torque reference, and a value of the electric machine torque. The method also sums an estimate of a total torque supplied by the transmission to the wheels and of an estimate of an equivalent resistive torque of the transmission to determine the estimated heat engine torque.

A control system of a mining machine controls a driving device that drives a traveling device of the mining machine. The control system includes an acceleration command value calculation unit that calculates an acceleration command value for accelerating the mining machine, a correction value calculation unit that calculates a correction value for the acceleration command value based on a first driving force component of the driving device to cause the mining machine to travel at a target traveling speed and a second driving force component of the driving device to offset a resistance component against traveling of the mining machine, an addition processing unit that calculates a correction acceleration command value by adding the acceleration command value and the correction value, and an acceleration command value output unit that outputs the correction acceleration command value to the driving device.