The present disclosure generally relates to an obstacle avoidance system with active suspensions The obstacle avoidance system uses one or more active suspensions to lift or jump one or more corresponding wheels over an obstacle in the vehicle's path to avoid contact with the obstacle when the vehicle cannot practically drive over, steer around, or stop before hitting the obstacle

Obstacle avoidance system with active suspensions

In a truck vehicle, a controller controls a mechanism to apportion the sum total of weight borne by a tandem axle between a drive axle and a tag axle.

Controlling weight allocation between truck axles

A method of setting the rides height of the air springs (130, 132, 134, 136) and air pressures of the tires (300), including receiving a user selected setting or preprogrammed ride height settings; sensing a ride height of and air pressure within, each of the air springs (130, 132, 134, 136); determining the weight of the vehicle based on the sensed ride height and air pressure within each of the air springs (130, 132, 134, 136); providing specified ride heights for the left and right front and rear air springs (130, 132, 134, 136); determining specified air pressures for the left and right front and rear tire inflators, based upon the determined weight of the vehicle and selected setting; inflating the left and right front and rear air springs (130, 132, 134, 136) to the specified ride heights; and inflating the left and right front and rear tires (300) to the specified air pressures.

User selected settings for vehicle with pneumatic suspension and tire inflation system

A dynamic weight shift suspension system for shifting the tandem axle loads on a vehicle. The system includes a first airbag connected between the drive axle of a tandem and the vehicle frame, and a second airbag connected between a tag axle of a tandem and the vehicle frame. The system also has a mechatronic control unit comprising at least one port and at least one solenoid. The mechatronic control unit is in direct fluid communication with the airbags and an air supply via fluid communication lines.

Dynamic weight shift suspension system

The invention discloses an adaptively-adjustable vehicle frame The adaptively-adjustable vehicle frame comprises a vehicle frame body, suspensions, wheels and lifting devices The wheels are arranged in the positions, close to the front end and the rear end, of the left side and the right side of the vehicle frame body correspondingly The suspensions and the lifting devices are arranged between the wheels and the vehicle frame body The upper end of each suspension is fixed to the vehicle frame body A rotary shaft is fixed to the lower end of each suspension The wheels are fixedly connected to the rotary shafts The upper end of each lifting device is rotatably fixed to the vehicle frame body The joints between the lifting devices and the vehicle frame body are away from the joints between the suspensions and the vehicle frame body The lower end of each lifting device is fixedly connected with the corresponding rotary shaft The lifting devices stretch or retract to drive the suspensions to rotate to control the height, relative to the wheels, of the vehicle frame body Each lifting device comprises a lifting rod, a hydraulic cylinder and a hydraulic controller, wherein the two ends of the lifting rod are connected with the vehicle frame body and the corresponding rotary shaft correspondingly, the hydraulic cylinder is arranged on the lifting rod, and the hydraulic controller controls the hydraulic cylinder to act In this way, the mass center height of the vehicle frame body can be adjusted, and the capacity to pass through an obstacle road is improved

Adaptively-adjustable vehicle frame

A suspension system and a method of control. A load force on a first axle assembly may be increased when a ride height of the first axle assembly differs from the ride height of the second axle assembly by more than a threshold amount and the ride height of the first axle assembly is not within a ride height tolerance.

Suspension system and method of control

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Suspension system and method of control