A tractor protection valve (100) for a trailer control module (150) of a vehicle (200a), in particular utility vehicle (200b) includes a pressure chamber (110), a delivery port (111), and a control port (112). A first fluid channel (121) fluidly connects the pressure chamber (110) and the delivery port (111), and a second fluid channel (122) fluidly connects the delivery port (111) and the control port (112). The pressure chamber (110), the delivery port (111), and the control port (112) are collinearly arranged, and each of the first fluid channel (121) and the second fluid channel (122) extend along a common axis (A). The first and second fluid channels (121, 122) may be formed in a single drilling step, from the pressure chamber (110), through the delivery port (111), and to the control port (112).

A rail vehicle (100) has a number of wheel axles (131, 132, 133, 134) and a set of brake units (101, 102, 103, 104) applying respective brake forces to the wheel axles. A power signal (P.sub.m) indicates the power needed to accelerate the rail vehicle (100) between first and second speeds (v.sub.1; v.sub.2) indicated by a speed signal. Based thereon an overall weight (m.sub.tot) of the rail vehicle (100) is estimated. Wheel speed signals indicate respective speeds (.sub.1, .sub.2, .sub.3, .sub.4) of the wheel axles (131, 132, 133, 134). A brake unit (101) gradually applies an increasing brake force to a specific wheel axle (131). During braking, an absolute difference (|.sub.1.sub.a|) is determined between the rotational speed of the specific wheel axle (131) and an average rotational speed (.sub.a) of the other wheel axles and in response to the absolute difference exceeding a threshold value, a friction parameter (.sub.m) is determined reflecting a friction coefficient (.sub.e) between the wheels (121a, 121b) on the specific wheel axle (131) and the rails (181, 182) upon which the rail vehicle (100) travels. The braking procedure is repeated for each of the wheel axles to estimate a respective fraction (m.sub.1, m.sub.2, m.sub.n) of the overall weight (m.sub.tot) carried by each of said wheel axles.

A method for detecting and reporting cargo lost from an autonomous vehicle. The method includes receiving, from a plurality of sensors, at least one sensor signal representing one or more measurements of the vehicle, determining a mass of the vehicle based on the one or more measurements, estimating a center of mass along a longitudinal axis of the vehicle based on the one or more measurements and the mass, and receiving, from the plurality of sensors, at least one sensor signal representing one or more cargo loss-related conditions. The method also includes identifying one or more cargo loss-indicative conditions based on the center of mass estimation and the one or more cargo loss-related conditions, generating a lost cargo detection signal based on at least one of the one or more cargo loss-indicative conditions and a location of the vehicle, and transmitting the lost cargo detection signal to an external receiver.

A method for detecting and reporting cargo lost from an autonomous vehicle. The method includes receiving, from a plurality of sensors, at least one sensor signal representing one or more measurements of the vehicle, determining a mass of the vehicle based on the one or more measurements, estimating a center of mass along a longitudinal axis of the vehicle based on the one or more measurements and the mass, and receiving, from the plurality of sensors, at least one sensor signal representing one or more cargo loss-related conditions. The method also includes identifying one or more cargo loss-indicative conditions based on the center of mass estimation and the one or more cargo loss-related conditions, generating a lost cargo detection signal based on at least one of the one or more cargo loss-indicative conditions and a location of the vehicle, and transmitting the lost cargo detection signal to an external receiver.

Systems and methods are provided for controlling operation of a trailer brake system associated with an agricultural vehicle-trailer combination. A HMI component used by the operator to provide a deceleration input to the trailer brake system is identified. Based on this a pressure level to be provided in one or more fluid lines of the trailer brake system is determined. A trailer brake signal for is generated and output controlling the trailer brake system to provide the determined pressure.

Systems and methods are provided for controlling operation of a trailer brake system associated with an agricultural vehicle-trailer combination. A HMI component used by the operator to provide a deceleration input to the trailer brake system is identified. Based on this a pressure level to be provided in one or more fluid lines of the trailer brake system is determined. A trailer brake signal for is generated and output controlling the trailer brake system to provide the determined pressure.

Systems and methods are provided for controlling operation of a trailer brake system associated with an agricultural vehicle-trailer combination. Using a driver deceleration demand a pressure level and/or duration for a preliminary pressure peak to be provided in one or more fluid lines of the trailer brake system is determined. A trailer brake signal is generated for controlling the trailer brake system in accordance with the preliminary pressure peak.

Systems and methods are provided for controlling operation of a trailer brake system associated with an agricultural vehicle-trailer combination. Using a driver deceleration demand a pressure level and/or duration for a preliminary pressure peak to be provided in one or more fluid lines of the trailer brake system is determined. A trailer brake signal is generated for controlling the trailer brake system in accordance with the preliminary pressure peak.

A method for training a neural network for predicting braking distance of a vehicle is provided. The method comprises performing one or more training stages for the neural network in the vehicle. A first set of weights and biases received from a server is used as an initial set of weights and biases for the neural network during a first training stage. The method further comprises updating a set of weights and biases of the neural network after every training stage and sending the updated set of weights and biases of the neural network to the server after one or more training stages have been performed.

Systems and methods are provided for controlling operation of a trailer brake system associated with an agricultural vehicle, comprising: determining a coupling force associated with a coupling point for providing a coupling between the vehicle and a trailer, determining, in dependence on the coupling force, the presence of a trailer coupled to the vehicle at the coupling point; and controlling one or more components of the vehicle in dependence on the determination of the presence of the trailer.