An active vibration isolation system for a motor vehicle seat that is adapted to be occupied by a user, includes an active suspension system that supports the seat above a floor of the motor vehicle, where the suspension system comprises at least one actuator that can be controlled to move the seat up and down in the direction of a vertical axis, a first sensor system mounted to the vehicle and that is adapted to sense vehicle height position changes along or parallel to the vertical axis, a second sensor system that is adapted to determine the seat translational position along or parallel to the vertical axis, and a controller that, in response to the first and second sensor systems, is adapted to provide control signals to the active suspension system that cause motions of the seat that are designed to control the height of the user's head or torso as the vehicle undergoes translations along the vertical axis.

The present disclosure is directed to an automatic seat height system that adjusts a seat height. The height of a seat is adjusted only when a calculated seat height is outside of the range of a desired seat height. The seat is adjusted only when a seat height change from the desired seat height is not due to external forces such as vibration or shock. The seat height apparatus comprises a sensor, a height adjustment apparatus, a controller and a controllable actuator all in operable communication. The controller comprises software that calculates a calculated seat height based on a measured raw seat height. The calculated seat height is a time history position value pattern. The controller then compares the calculated seat height to a desired seat height to determine a change factor. If the change factor is outside of a predetermined range, the controller directs the controllable actuator to change the height of the seat to bring it within the range.

The present disclosure provides a damper system for a suspension of a vehicle seat. A linkage of the damper system can be configured to cause a damper to provide different damping characteristics when the suspension moves towards a neutral position than when the suspension moves away from the neutral position.

Various embodiments of the present technology may comprise a method and apparatus for a space-saving suspension system. In various embodiments, the apparatus may comprise a fine suspension device, a coarse suspension device, and a mechanical assembly. In various embodiments, the fine suspension device is arranged at an angle greater than zero degrees from the z-axis. In various embodiments, the mechanical assembly is coupled to the fine suspension device and a payload, such that when a force is exerted on the mechanical assembly by the payload, an applied force is transmitted to the fine suspension device.

A sealed boat seat suspension including a plurality of sealed rails. The sealed boat seat suspension also includes a boat seat attachment component which is coupled to the plurality of sealed rails. The sealed boat seat suspension also includes a boat seat attachment component which is movable with respect to at least a portion of the plurality of sealed rails. The sealed boat seat suspension also includes a suspension component which is coupled to the boat seat attachment component such that the suspension component provides at least some control of movement of the boat seat attachment component with respect to at least a portion of the plurality of sealed rails.

A vehicle seat having a residual spring travel controller and an air spring, the residual spring travel controller and the air spring each having a first end that is connected to a first connecting link of the vehicle seat and each having a second end that is connected to a second connecting link of the vehicle seat, and the residual spring travel controller comprising a piston element that is connected to the first end of the residual spring travel controller and a rod element that is connected to the second end of the residual spring travel controller, it being possible to bring the piston element into contact with a valve element or a switch element by means of a rotary and/or sliding movement with respect to the rod element to adjust an amount of air of the air spring.

To make it possible to improve seated person's posture stability with respect to input vibration, and more improve a vibration absorption characteristic or an impact absorption characteristic caused by impact vibration as compared with conventional ones. A suspension mechanism 1 has a structure in which two suspension units 100, 200 which support a movable support part 140 and a seat support part 240 through link mechanisms 110, 120 respectively are arranged in two upper and lower stages, and a configuration such that, when the movable support part 140 and the seat support part 240 move up and down relatively in response to input vibration, the two link mechanisms 110, 210 supporting the respective parts are operated to rotate in opposite directions to each other. Therefore, a position of a hip point of a person seated on a seat supported by the seat support part 240 is displaced in an approximately vertical trajectory, which reduces forward and backward swinging and stabilizes a seating posture, resulting in good ride comfort, as compared with a case of one link mechanism.

Vehicle seat having a pitching spring unit, a vehicle seat upper part and a vehicle seat lower part of the vehicle seat being connected such that they can be moved relative to one another by means of a scissor frame arrangement, comprising a first scissor arm and a second scissor arm which cross in a first region as viewed in a vehicle seat width direction, the pitching spring unit comprising a spring element carrier and a spring element, the spring element being connected on one side to the vehicle seat upper part, the vehicle seat lower part or the scissor arms and on the other side to the spring element carrier which is connected to the first scissor arm such that it can be rotated about a second rotational axis and to the second scissor arm such that it can be rotated about a third rotational axis.

A vehicle seat having a vehicle seat underbody, comprising: a base plate; a side horizontal suspension; a rolling suspension comprising a rod element rotatably mounted with respect to the side horizontal suspension; a scissors-type frame having a first swing and a second swing, wherein the first swing is connected by a first slide element to the rod element and the second swing is connected by a second slide element to the rod element and the first swing is connected to the first slide element and the second swing is connected to the second slide element; a first element carrier; a lengthwise horizontal suspension; and a first spring element, which is connected on the one hand to the first element carrier and on the other hand to the base plate or one of the swings.

A seat suspension includes a base including a base hook and a seat platform provided with a seat. A first link couples a first rotational axis of the base and a third rotational axis of the seat platform and is configured to be rotatable about the first rotational axis and the third rotational axis. A second link couples a second rotational axis of the base and a fourth rotational axis of the seat platform and is configured to be rotatable about the second rotational axis and the fourth rotational axis. A link hook is provided on the second link. An elastic member is latched to the base hook and the link hook and is configured to pull the link hook toward the base hook. A first angle between a contracting direction of the elastic member and a rotation direction of the link hook increases as the elastic member expands.