摘要:
Providing a movement control means for detecting a collision between a driving wheel and a step and a catch of a driven wheel by the step and temporarily changing a gravity center control region of a mobile device and moving the mobile device to pass over the step, and a mobile device including the same in order to prevent immovability under an environment having a step or an irregularity. Thus, a mobile device is configured to include: a lower body; an upper body provided in an upper portion of the lower body; a gravity center position adjustment means for changing an angle or a position of the upper body with respect to the lower body; and a driving wheel and a driven wheel provided in a lower portion of the lower body, and during movement in a direction in which the driving wheel is on a front side and the driven wheel is on a rear side, the gravity center position adjustment means inclines or moves the upper body to the front side when the driven wheel passes over the step, and moves the upper body toward an original angle or position after the driven wheel passes over the step.
摘要:
An embodiment of the invention provides a method and system including a sensor on a vehicle and a processor connected to the sensor. The processor determines a probability of falling based on input from the sensor, whether the probability of falling exceeds a threshold, and a state of an operator of the vehicle. An actuator connected to the processor receives a signal from the processor when the probability of falling exceeds the threshold and when the state of the operator includes an impaired state. Stabilizer wheels are connected to the actuator, where the signal includes a command to deploy the stabilizer wheels.
摘要:
A suspension for a vehicle includes a pair of opposing upper and lower control arms that longitudinally locate an axle along the frame. The upper and lower control arms include first ends pivotably mounted to the ends of the axle at upper pivotable axle joints and a second lower pivotable axle joints, respectively. The upper and lower control arms include second ends that are pivotably mounted to frame hanger brackets at upper and lower pivotable hanger joints, respectively. The frame hanger bracket are laterally interposed between an upper and lower hanger joint so that an upper pivotable hanger joint is on one side of each frame hanger and a lower pivotable hanger joint is on an opposite side of the each frame hanger.
摘要:
A method is provided for controlling a hydraulic hybrid vehicle, the hydraulic hybrid vehicle including: a first pair of wheels and a second pair of wheels; an internal combustion engine connected to the first pair of wheels for propelling the hydraulic hybrid vehicle; and a hydraulic propulsion system including a first hydraulic machine connected to the second pair of wheels, the method including the steps of; receiving a signal indicative of a driving condition, including vehicle speed, of the hydraulic hybrid vehicle; comparing the vehicle speed of the driving condition of the hydraulic hybrid vehicle with an upper predetermined threshold speed limit; determining if the vehicle speed of the driving condition is higher than the upper predetermined threshold speed limit; and when the vehicle speed is higher than the upper predetermined threshold speed determining, based on the driving condition, control parameters for operating the first hydraulic machine; and controlling the control parameters of the first hydraulic machine for operating the first hydraulic machine. The invention also relates to a control unit and a hydraulic hybrid vehicle.
摘要:
A portable hoist assembly for lifting, relocating and lowering loads includes a trailer that is both wheeled and configured to couple to a vehicle. A power module, a lift arm and an actuator are coupled to the trailer. The actuator is operationally coupled to the power module and the lift arm. A fastener is operationally coupled proximate to a second end of the lift arm. The fastener is configured to couple the lift arm to a load. The actuator is positioned to motivate the lift arm and the fastener upwardly and downwardly. The load that is coupled to the lift arm is elevated from a first resting position to a raised position, repositioned by movement of the trailer, and lowered from the raised position to a second resting position.
摘要:
A dual trailing axle suspension system is disclosed wherein a pair of trailing axles are suspended from an auxiliary chassis with axle suspensions that provide spring action for isolating road-induced axle movement from the auxiliary chassis. And the auxiliary chassis is suspended from a chassis of a motor vehicle by an auxiliary chassis suspension adapted to deploy the auxiliary chassis from a stowed location on the motor vehicle to a deployed location at a substantial distance behind the motor vehicle chassis. And the auxiliary chassis suspension is adapted to cause the auxiliary chassis to help support the motor vehicle chassis to a variable degree by acting on the auxiliary chassis at a location between the two axles and in a manner determined by whether the spring action provided by the axle suspensions is set or variable.
摘要:
A method includes operating a wheeled vehicle including an articulated suspension system; and articulating the suspension system to skid steer the vehicle. A wheeled vehicle having an articulated suspension system includes a skid steering controller capable of articulating the suspension system to skid steer the vehicle. The skid steering controller may be implemented in software and may, but does not necessarily, include three stages for applying a differential torque, varying the traction of at least one wheel, and finely adjusting the wheel's suspension to approach a critical damped response of the vehicle turning rate with respect to its commanded rate, respectively.
摘要:
A dual trailing axle suspension system is disclosed wherein a pair of trailing axles are suspended from an auxiliary chassis with axle suspensions that provide spring action for isolating road-induced axle movement from the auxiliary chassis. And the auxiliary chassis is suspended from a chassis of a motor vehicle by an auxiliary chassis suspension adapted to deploy the auxiliary chassis from a stowed location on the motor vehicle to a deployed location at a substantial distance behind the motor vehicle chassis. And the auxiliary chassis suspension is adapted to cause the auxiliary chassis to help support the motor vehicle chassis to a variable degree by acting on the auxiliary chassis at a location between the two axles and in a manner determined by whether the spring action provided by the axle suspensions is set or variable.
摘要:
A tag axle suspension system can include a tire and at least one hanger bracket pivotable relative to a vehicle frame to deployed and lifted configurations. In the lifted configuration, the tire can be a lowest component of the suspension system, and can be a first component to engage a road surface. A tag axle suspension system can include an air spring and a travel limit device that limits compression of the air spring in a lifted configuration of a hanger bracket. A tag axle suspension system can include an axle, a suspension arm pivotably connected between a hanger bracket and the axle, and a travel limit device that limits displacement of the suspension arm in a lifted configuration of the hanger bracket. The travel limit device can limit displacement of the axle toward an air spring support in the lifted configuration of the hanger bracket.
摘要:
An apparatus and a method for robotic control that allows an unbalanced pendulum robot to raise its Center of Mass and balance on two motorized wheels. The robot includes a pair of arms that are connected to the upper body of the robot through motorized joints. The method consists of a series of movements employing the arms of the robot to raise the robot to the upright position. The method comprises a control loop in which the motorized drives are included for dynamic balance of the robot and the control of the arm apparatus. The robot is first configured as a low Center of Mass four-wheeled vehicle, then its Center of Mass is raised using a combination of its wheels and the joint located at the attachment point of the arm apparatus and the robot body, between the rear and front wheels; the method then applies accelerations to the rear wheels to dynamically pivot and further raise the Center of Mass up and over the main drive wheels bringing the robot into a balancing pendulum configuration.