A suspension system for a land vehicle is provided with at least one actuator connected to a chassis and an axle of a land vehicle spaced apart from a pivotal connection of the axle. A suspension circuit is in cooperation with the at least one actuator. A controller is in operable communication with the suspension circuit and is programmed to receive input indicative of a travel speed of the land vehicle. The suspension circuit is closed at a low speed travel range to permit the axle to pivot in response to variations in an underlying support surface. The suspension circuit is opened to permit selective actuation of the at least one actuator at a higher speed travel range in response to variations in the underlying support surface.

A suspension system for a land vehicle is provided with at least one actuator connected to a chassis and an axle of a land vehicle spaced apart from a pivotal connection of the axle. A suspension circuit is in cooperation with the at least one actuator. A controller is in operable communication with the suspension circuit and is programmed to receive input indicative of a travel speed of the land vehicle. The suspension circuit is closed at a low speed travel range to permit the axle to pivot in response to variations in an underlying support surface. The suspension circuit is opened to permit selective actuation of the at least one actuator at a higher speed travel range in response to variations in the underlying support surface.

A utility vehicle includes an electronic control unit configured to control electronically controlled suspension devices. The electronic control unit is disposed in an internal space formed between a front panel and a dash panel and is located at a higher level than a seat portion of a driver seat. In a vehicle width direction, the electronic control unit is located toward a driver seat region of the dash panel with respect to a center region of the dash panel.

provided is an information processing device comprising: a map database in which a control parameter for controlling the behavior of the vehicle is recorded for each vehicle type at each point on a road; a data reading unit that acquires vehicle information including at least vehicle type information and positional information of the vehicle and reads the control parameter corresponding to the travel point of the vehicle from the map database based on the vehicle information; a parameter setting unit that sets an application control parameter to be applied to control of the vehicle based on the control parameter read by the data reading unit; and a data update unit that acquires an observation value related to the behavior of the vehicle controlled based on the application control parameter from the vehicle and updates the map database based on the observation value.

Disclosed are an adaptive chassis and a robot. The chassis includes: a support (110), a first wheel (101) and a second wheel (102) arranged at two sides of a first end of the support (110), a first suspension seat (120) arranged at a bottom side of a second end of the support (110), a first rotating shaft (121) arranged on the first suspension seat (120), a first crossbeam (130) connected with the first rotating shaft (121) and being capable of rotating around the first rotating shaft (121), and a third wheel (103) and a fourth wheel (104) arranged on two ends of the first crossbeam (130). An axis of the first rotating shaft (121) is consistent with a moving direction of the chassis. When a state of a supporting surface changes and one of the third wheel (103) and the fourth wheel (104) gets out of contact with the supporting surface, the out-of-contact one of the third wheel (103) and the fourth wheel (104) can rotate around the first rotating shaft (121) by means of the first crossbeam (130) to make contact with the supporting surface.

One or more systems are disclosed for controlling dampening forces provided by a shock absorber by means of a piston face and an additional dampening shim underneath the piston face in the shock absorber. The piston face is coupled to a piston and the dampening shim is positioned beneath a bottom surface of the piston face. The piston face includes a first set of openings and a second set of openings on the piston face that have differing sizes and diameters. The dampening shim has a diameter that is less than the diameter of the piston face. When fluid pressure is applied against the underside of the dampening shim, the dampening shim partially blocks the first set of openings and fully blocks the second set of openings on the piston face from the bottom of the piston face, which thereby affects the overall dampening of the shock absorber.

A front suspension wheel for mobile robotic devices that can be compressed into or decompressed out of a main body of a mobile robotic device to facilitate driving the mobile robotic device over obstacles, thresholds and the like. The wheel will provide the mobile robotic device with information such as how fast the wheel is traveling. The wheel is easily removable by hand by the user.

A drive-wheel suspension mechanism for a smart movable device and a smart movable device, include a drive wheel bracket, a gearbox and a resilient reset member. The drive wheel bracket is provided with at least one set of sliding slot assembly arranged oppositely. The sliding slot assembly includes two first sliding slots arranged opposite to each other, and the first sliding slot extends rearward and an included angle between the first sliding slot and a horizontal plane is greater than or equal to 0 degree.

A leaf spring vehicle suspension system includes a chassis rail. Also included is an axle. Further included is a first stage leaf spring operatively coupled at a first end and a second end to the chassis rail, the first stage leaf spring formed of a single steel spring plate and having a first length. Yet further included is a second stage leaf spring operatively coupled to the first stage leaf spring in a stacked arrangement proximate the axle, the second stage leaf spring formed of a composite material and having a second length that is less than the first length of the first stage leaf spring.

A front suspension wheel for mobile robotic devices that can be compressed into or decompressed out of a main body of a mobile robotic device to facilitate driving the mobile robotic device over obstacles, thresholds and the like. The wheel will provide the mobile robotic device with information such as how fast the wheel is traveling. The wheel is easily removable by hand by the user.