A tractor trailer jacking assembly f includes a plurality of jacks that is each mounted on a bottom of a tractor trailer. Each of the jacks is positionable in an extended position to engage the ground to inhibit the tractor trailer from tipping. A control circuit is mounted on a semi tractor and the control circuit detects the speed of the semi tractor. A gyroscope unit is mounted on the semi tractor to detect a degree and a direction to which the semi tractor is tipping. The control circuit actuates the respective jacks into the deployed position on a corresponding side of the tractor trailer when the gyroscope unit detects the semi tractor has tipped beyond a pre-determined angle of tilt.

A tractor trailer jacking assembly f includes a plurality of jacks that is each mounted on a bottom of a tractor trailer. Each of the jacks is positionable in an extended position to engage the ground to inhibit the tractor trailer from tipping. A control circuit is mounted on a semi tractor and the control circuit detects the speed of the semi tractor. A gyroscope unit is mounted on the semi tractor to detect a degree and a direction to which the semi tractor is tipping. The control circuit actuates the respective jacks into the deployed position on a corresponding side of the tractor trailer when the gyroscope unit detects the semi tractor has tipped beyond a pre-determined angle of tilt.

A wheeled engineering vehicle includes a frame; a first telescopic cylinder disposed on the frame; and a stabilizer assembly connected with the first telescopic cylinder and configured to rotate relative to the frame under drive of the first telescopic cylinder. The stabilizer assembly includes: a first stabilizer leg having a hollow structure; a second telescopic cylinder disposed in the first stabilizer leg; a second stabilizer leg configured to extend or retract relative to the first stabilizer leg under drive of the second telescopic cylinder, and the first stabilizer leg configured to radially limit the second stabilizer leg; and a stabilizer foot connected to the second end of the second stabilizer leg and configured to be in contact with the ground to support the vehicle. The first stabilizer leg, the second stabilizer leg and the stabilizer foot cooperate to support the whole vehicle to improve the stability of the vehicle.

A wheeled engineering vehicle includes a frame; a first telescopic cylinder disposed on the frame; and a stabilizer assembly connected with the first telescopic cylinder and configured to rotate relative to the frame under drive of the first telescopic cylinder. The stabilizer assembly includes: a first stabilizer leg having a hollow structure; a second telescopic cylinder disposed in the first stabilizer leg; a second stabilizer leg configured to extend or retract relative to the first stabilizer leg under drive of the second telescopic cylinder, and the first stabilizer leg configured to radially limit the second stabilizer leg; and a stabilizer foot connected to the second end of the second stabilizer leg and configured to be in contact with the ground to support the vehicle. The first stabilizer leg, the second stabilizer leg and the stabilizer foot cooperate to support the whole vehicle to improve the stability of the vehicle.

An outrigger control device (A1) includes: a plurality of outriggers (30) that is provided in a traveling body (10) and extendable/contractible between a non-grounding state where the traveling body is not supported and a grounding state where the traveling body is supported; an inclination sensor (310) that is provided in the traveling body and can detect inclination of the traveling body; and a controller (100) that controls an extension/contraction action of each outrigger and acquires a detection signal of the inclination sensor (310). Further, the controller is provided with a grounding determination processing unit (101) that controls the outriggers to perform a predetermined grounding determination action and determines whether or not each outrigger is in the grounding state on the basis of the detected value of the inclination sensor at the time.

An outrigger control device (A1) includes: a plurality of outriggers (30) that is provided in a traveling body (10) and extendable/contractible between a non-grounding state where the traveling body is not supported and a grounding state where the traveling body is supported; an inclination sensor (310) that is provided in the traveling body and can detect inclination of the traveling body; and a controller (100) that controls an extension/contraction action of each outrigger and acquires a detection signal of the inclination sensor (310). Further, the controller is provided with a grounding determination processing unit (101) that controls the outriggers to perform a predetermined grounding determination action and determines whether or not each outrigger is in the grounding state on the basis of the detected value of the inclination sensor at the time.

An integrated jack system for a vehicle is provided. The system includes a plurality of jack assemblies disposed within a vehicle frame, wherein each of the plurality of jack assemblies is disposed adjacent to a vehicle wheelbase. Each of the jack assemblies includes a plurality of telescopic, wherein a plurality of controls actuates the plurality of jack assemblies between the extended position and the retracted position. A display is operably connected to a weight sensor disposed within each of the plurality of jack assemblies to display a weight supported by each jack assembly. A width of each telescopic member increases in width from a proximal end of the jack assembly to a distal end of the jack assembly. Each of the jack assemblies terminates in a foot member, wherein a lower surface of the foot member frictionally engages a ground surface when the jack assembly is in the extended position.

An integrated jack system for a vehicle is provided. The system includes a plurality of jack assemblies disposed within a vehicle frame, wherein each of the plurality of jack assemblies is disposed adjacent to a vehicle wheelbase. Each of the jack assemblies includes a plurality of telescopic, wherein a plurality of controls actuates the plurality of jack assemblies between the extended position and the retracted position. A display is operably connected to a weight sensor disposed within each of the plurality of jack assemblies to display a weight supported by each jack assembly. A width of each telescopic member increases in width from a proximal end of the jack assembly to a distal end of the jack assembly. Each of the jack assemblies terminates in a foot member, wherein a lower surface of the foot member frictionally engages a ground surface when the jack assembly is in the extended position.

A system for optimizing a machine learning model. a machine learning model that generates predictions based on at least one input feature vector, each input feature vector having one or more vector values; and an optimization module with a processor and an associated memory, the optimization module being configured to: create at least one slice of the predictions based on at least one vector value, determine at least one optimization metric of the slice that is based on at least a total number of predictions for the vector value, and optimize the machine learning model based on the optimization metric.

A trailer assembly includes first and second axles supporting first and second wheels which are coupled to first and second actuators of a steering system. The steering system includes a control circuit connected to the actuators and the control circuit includes a driving device configurable in a low speed maneuvering mode with: a synchronized sub-mode in which the actuators can be actuated in a synchronized manner to steer the wheels in a synchronized manner, and a desynchronized sub-mode in which the first and second actuators can be actuated individually and independently to steer only the first wheels or only the second wheels. A control device is connected to the driving device to: select one of the sub-modes in the low speed maneuvering mode, and select an actuation either of the first actuator or of the second actuator, in the desynchronized sub-mode.