The invention relates to suspension design. The present vehicle suspension comprises a quadrangular frame. Each corner portion of the frame has a wheel block kinematically attached thereto so as to form two pairs of wheelsa front pair and a rear pair. On each side of the frame, longitudinal and transverse coupling cables are fastened for movement therealong inside housings. Each wheel block consists of a body that is simultaneously connected to two coupling cables. Movably mounted on the body are parallel horizontal arms, the first of which is fastened to the body by its middle portion. A knuckle with the hub of a wheel is attached to an end of the first arm and to another end of the second arm, and two coupling cable dampers are attached to the other end of the first arm. The housings of the cables are attached to the body of the corresponding wheel block. The free end of each cable is enclosed in a damper. Mounted on the cable end portions that freely project from the housings in front of a damper are spring stabilizers of the position of the wheel of the wheel block. Each coupling cable is provided with a linear actuator. The result is an increase in the stability and smoothness of movement of a vehicle.

The invention relates to suspension design. The present vehicle suspension comprises a quadrangular frame. Each corner portion of the frame has a wheel block kinematically attached thereto so as to form two pairs of wheelsa front pair and a rear pair. On each side of the frame, longitudinal and transverse coupling cables are fastened for movement therealong inside housings. Each wheel block consists of a body that is simultaneously connected to two coupling cables. Movably mounted on the body are parallel horizontal arms, the first of which is fastened to the body by its middle portion. A knuckle with the hub of a wheel is attached to an end of the first arm and to another end of the second arm, and two coupling cable dampers are attached to the other end of the first arm. The housings of the cables are attached to the body of the corresponding wheel block. The free end of each cable is enclosed in a damper. Mounted on the cable end portions that freely project from the housings in front of a damper are spring stabilizers of the position of the wheel of the wheel block. Each coupling cable is provided with a linear actuator. The result is an increase in the stability and smoothness of movement of a vehicle.

An electromagnetic suspension device includes: an electromagnetic actuator that generates a driving force related to vibration damping of a vehicle body by an electric motor; a rotational angle acquisition unit that acquires a rotational angle of the electric motor; a rotational angle acceleration calculation unit that calculates a rotational angle acceleration of the electric motor based on the rotational angle; ECU that performs driving force control including inertia compensation control of the electromagnetic actuator based on the rotational angle acceleration; and a relative speed calculation unit that acquires a relative speed between above- and below-spring members. In an area in which a relative speed exceeds a predetermined relative speed threshold, the ECU corrects an amount of inertia compensation so that the amount of inertia compensation is decreased, as compared with an area in which a relative speed value is the relative speed threshold or less.

An electromagnetic suspension device includes: an electromagnetic actuator that generates a driving force related to vibration damping of a vehicle body by an electric motor; a rotational angle acquisition unit that acquires a rotational angle of the electric motor; a rotational angle acceleration calculation unit that calculates a rotational angle acceleration of the electric motor based on the rotational angle; ECU that performs driving force control including inertia compensation control of the electromagnetic actuator based on the rotational angle acceleration; and a relative speed calculation unit that acquires a relative speed between above- and below-spring members. In an area in which a relative speed exceeds a predetermined relative speed threshold, the ECU corrects an amount of inertia compensation so that the amount of inertia compensation is decreased, as compared with an area in which a relative speed value is the relative speed threshold or less.

A shock absorber includes: a damper tube accommodating a piston in a reciprocally movable manner; a suspension spring for urging the damper tube and a piston rod in opposite directions; a first male screw provided on an outer peripheral surface of the damper tube; a first nut screwed into the first male screw so as to enable a spring load of the suspension spring to be adjusted; a second nut screwed into the first male screw so as to enable a position of the first nut in an axial direction of the damper tube to be fixed; a second male screw having a reverse screw configuration to the first male screw and provided on the outer peripheral surface of the damper tube; and a damper head screwed into the second male screw so as to enable the damper head to cover one end portion of the damper tube.

APC systems and methods using vehicle mass to assess boardings and alightings of passengers on transit vehicles (e.g., buses). Vehicle mass is determined based on signaled information indicative of a pressure in one or more air bag circuits of an air ride suspension system of the vehicle. In some embodiments, pressure information from three air bag circuits of the vehicle are monitored and reviewed to determine vehicle mass. The passenger count can be estimated based on determined vehicle mass by an Additional Mass Method or an Event-Based Method for example.

APC systems and methods using vehicle mass to assess boardings and alightings of passengers on transit vehicles (e.g., buses). Vehicle mass is determined based on signaled information indicative of a pressure in one or more air bag circuits of an air ride suspension system of the vehicle. In some embodiments, pressure information from three air bag circuits of the vehicle are monitored and reviewed to determine vehicle mass. The passenger count can be estimated based on determined vehicle mass by an Additional Mass Method or an Event-Based Method for example.

A device for adjusting the level of a motor vehicle comprises an electric motor (4) and an actuating gear (3) which is connected upstream of a screw drive (2). The actuating gear (3) is formed by three series-connected gears (14, 15, 16) with parallel rotation axes (D14, D15, D16). An input gear (14), the number of teeth of which is at least one and at most five, is coupled to the motor shaft (17) of the electric motor (4) for conjoint rotation. The input gear engages with an intermediate gear (15) which engages with an output gear (16) which is connected to a nut (9) of the screw drive (2) for conjoint rotation.

A device for adjusting the level of a motor vehicle comprises an electric motor (4) and an actuating gear (3) which is connected upstream of a screw drive (2). The actuating gear (3) is formed by three series-connected gears (14, 15, 16) with parallel rotation axes (D14, D15, D16). An input gear (14), the number of teeth of which is at least one and at most five, is coupled to the motor shaft (17) of the electric motor (4) for conjoint rotation. The input gear engages with an intermediate gear (15) which engages with an output gear (16) which is connected to a nut (9) of the screw drive (2) for conjoint rotation.

An electrically controlled suspension includes a first spring with a first end and a second end, where the first end of the first spring is connectable to a forward frame bracket of a frame of a vehicle and where the second end of the first spring is connectable to a rear frame bracket of the frame of the vehicle via a rear spring support. The suspension includes a second spring with a first end and a second end, where the second end of the second spring is connected to the second end of the first spring. An electrically operated suspension control actuator is provided where the first end of the second spring is connected to the electrically operated suspension control actuator.