摘要:
An active vehicle suspension employs a multi-point support system between a vehicle's chassis and cab. Each support point has an isolator which includes a linear hydraulic actuator that is connected at its quiet end to the payload by a passive vibration isolator and is connected at its vibrating end to the chassis. Each isolator also has a support spring to off-load the majority of the weight of the cab from the hydraulic actuator. An accelerometer is mounted to sense movement at a point between the linear hydraulic actuator and the passive vibration isolator. An electrical signal produce by the accelerometer is processed to operate a hydraulic valve that controls movements of the hydraulic actuator so that transmission of vibrations from the chassis to the cab is attenuated.
摘要:
An active vehicle suspension employs a multi-point support system between a vehicle's chassis and cab. Each support point has an isolator which includes a linear hydraulic actuator that is connected at its quiet end to the payload by a passive vibration isolator and is connected at its vibrating end to the chassis. Each isolator also has a support spring to off-load the majority of the weight of the cab from the hydraulic actuator. An accelerometer is mounted to sense movement at a point between the linear hydraulic actuator and the passive vibration isolator. An electrical signal produced by the accelerometer is processed to operate a hydraulic valve that controls movements of the hydraulic actuator so that transmission of vibrations from the chassis to the cab is attenuated.
摘要:
First and second cross-bars extend laterally across the width of a vehicle and are pivotally connected intermediate their lengths in scissors fashion. One end of each cross-bar is pivotally connected to a wheel support assembly which is in turn pivotally connected to the vehicle body by a spring and damper assembly. The other end of the first cross-bar is pivotally connected to the vehicle body by a hydraulic cylinder and piston assembly. The other end of the second cross-bar is pivotally connected via a lever to the actuator of a variable flow hydraulic valve. Lateral forces exerted by the wheels and cross-bars relative to the vehicle body during a turn operate the hydraulic valve to send a proportionate amount of hydraulic fluid to the upper or lower portion of the hydraulic cylinder to thereby prevent rolling of the vehicle body.
摘要:
A support assembly for receiving a vehicle wheel suspension and adapted for mounting to a vehicle structure, is disclosed that includes: a transverse body (3, 203, 303) having opposite ends; a left hand anchoring strut (9, 209, 309) extending downwardly from the transverse body (3, 203, 303) to define a distal left hand lower end; a right hand anchoring strut (7, 207, 307) extending downwardly from the transverse body (3, 203, 303) to define a distal right hand lower end. Separately attached left hand and right hand external reinforcing elements (31, 33; 231, 233, 333) each extend from an adjacent one of the opposite ends of the transverse body (3, 203, 303) to a connecting area (35, 37; 235, 335, 337) adjacent the respective one of the left and right hand distal lower ends of the downwardly extending anchoring struts (7, 9; 207, 209, 307, 309).
摘要:
In a suspension system that connects a wheel support to a vehicle body, the wheel support is designed to carry a wheel of radius “r”, the wheel is intended to rest on the ground via a contact area, the system includes an arrangement that confers upon the wheel support, relative to the body, a degree of freedom of the camber and a degree of freedom of the deflection of the suspension that are independent of one another. The system is configured such that the camber movement of the wheel support relative to the body has, around a mean position, an instantaneous center of rotation (CIR r/c) located within a range from 2.5 r above ground to r below ground.
摘要翻译:在将车轮支撑件连接到车身的悬挂系统中,车轮支撑件被设计成承载半径“r”的车轮,车轮旨在通过接触区域搁置在地面上,该系统包括配置 在车轮支撑件上,相对于车身,弧度的自由度以及悬挂系统彼此独立的偏转自由度。 该系统被构造成使得车轮支撑件相对于车身的外倾运动具有在平均位置周围的瞬时转动中心(CIR r / c),其位于距离地面2.5r至地面以下的范围内。
摘要:
A method for limiting endstop collisions when non-typical inputs are experienced and also when the seat is leveled at a position above or below the normal leveling zone limits. According to the method of the invention a temporary or transient control method referred to as rebound control method causes a large damping force to be applied by the seat suspension system in response to non-typically large inputs. The large damping force is applied until a duration timer timesout. Also according to the invention, a level control algorithm provides additional damping when the seat is leveled outside the normal leveling zone. The degree of additional damping provided is a function of the distance the seat exceeds the normal leveling zone.