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7621538 |
Air spring assembly with localized signal processing, system and method utilizing same, as well as operating module therefor
An operating module for localized signal processing at a corner of a vehicle includes a housing, a valve assembly or a sensor, and a signal processing device. The operating module can be used in...
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7600762 |
Suspension control device
A suspension control device includes a wheel grip state estimation device for estimating grip state of vehicle wheels based on variations of aligning torque of wheels to be steered, a vehicle...
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7406371 |
Suspension control system
In a suspension control system, accelerations detected by acceleration sensors are differentiated by a differentiator to calculate acceleration derivative values. Based on these values, a target...
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7340334 |
Control device of variable damping force damper
A control device of a variable damping force damper for controlling a damping force of a damper used in a vehicle suspension system comprises: relative displacement detection means for detecting a...
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7287760 |
Vehicle suspension system and method
A control system is operatively associated with a suspension system of a vehicle. The associated suspension system includes an associated fluid spring operating at an associated fluid pressure and...
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7137634 |
Active control type mounting bushing device for vehicle
An active control type mounting bushing device adapted to properly change the hardness of the mounting bushing according to a driving state, thereby obtaining a proper hardness of the mounting...
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7085636 |
Transmissibility shaping control for active vehicle suspension systems
The present invention provides a transmissibility shaping control for active suspension systems. The T-shaping control is a combination of several sub-strategies using the dynamic information in...
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6679504 |
Seamless control of spring stiffness in a liquid spring system
A vibration control system for a structure having a first structural member and a second structural member. The vibration control system having a liquid spring operably interposed between the first...
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6619672 |
Suspension device having a trim corrector
A vehicle suspension device having, for each suspension system, a suspension including a spring and a reversible electric actuator acting in parallel with the spring. The device includes provision...
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6598885 |
Single valve control of damping and stiffness in a liquid spring system
A vibration control system for a structure having a first structural member and a second structural member. The vibration control system having a liquid spring operably interposed between the first...
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6439582 |
Vehicle suspensions
A vehicle suspension system control unit ( 40 ) is arranged to determine from a lateral accelerometer ( 42 ) and vehicle speed sensor ( 44 ) when the vehicle is executing a series of opposite turns...
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6397134 |
Vehicle suspension control with enhanced body control in steering crossover
A vehicle suspension control stores, for each direction of vehicle lateral acceleration, a first set of enhanced vehicle damping commands that provide enhanced damping in compression for the...
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6370458 |
Vehicle suspension control with vehicle handling enhancement having relative velocity dependent adjustment
A vehicle suspension control derives demand force commands from relative velocities of the suspension dampers at the corners of the vehicle and applies the demand force commands only when a force...
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6311110 |
Adaptive off-state control method
An Adaptive Off-state (AO) control method (55) for use in conjunction with a suspension system (10) including a controllable damper (22) interconnecting relatively moveable members (12, 14) to...
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6298294 |
Device for controlling suspension shock absorbers of vehicles based upon phantom substitute therefor
A device for controlling damping coefficients of shock absorbers (22FL, 22FR, 22RL, 22RR) of a four wheeled vehicle constructs a phantom damping system composed of a phantom side shock absorber...
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6219602 |
Vehicle suspension control with stability in turn enhancement
A vehicle suspension control includes a vehicle body control responsive to body/wheel velocity at the corners of the vehicle body to derive a demand force command for dampers at each corner of the...
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6181997 |
Vehicle suspension control with compensation for yaw correcting active brake control
A vehicle suspension system is responsive to an active brake signal from a brake system indicating the application of a greater braking force to one front corner brake than to the other front...
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6158746 |
Suspension control apparatus
In the suspension control apparatus of the present invention, when a lateral acceleration differential value falls outside a lateral acceleration differential value range, a controller calculates a...
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6032770 |
Low force actuator for suspension control
A low force actuator that is used in conjunction with semi-active and passive suspension systems to provide for improved suspension and ride control for vehicles, and which overcomes stiction and...
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6023220 |
Vehicle having a scanning system
A vehicle having a scanning system for zero contact scanning of one or several mutually spaced road areas and having an analyzing system connected behind the scanning system. The analyzing unit is...
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5987369 |
System and method of controlling semiactive suspension
A system and method of controlling a semiactive suspension is disclosed. The system and method effectively selects appropriate damping force curves for the dampers of the four wheels in accordance...
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5948028 |
Method of improving response time in a vehicle active tilt control system
A method is provided for improving response time in a vehicle active tilt control system having front and rear stabilizer bars adjustable by front and rear hydraulic actuators which are movable in...
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5928297 |
Suspension control device of vehicle according to genetic algorithm
A suspension control device for a vehicle equipped with suspension dampers variable of damping coefficient, including: a means for storing a group of schedules each having a plurality of...
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5765115 |
Pneumatic tilt stabilization suspension system
A controllable suspension system includes air springs and variable damping shock absorbers (108) switchable between first and second effective spring rates and soft and firm damping rates. At...
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5662356 |
Roll correction system with countersteer compensation
A roll correction system for use in a vehicle including a body, wheels, and a suspension coupling the body to the wheels includes a roll correction apparatus hydraulically actuated by a hydraulic...
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5475596 |
Full car semi-active suspension control based on quarter car control
A method of control for a vehicle suspension system comprising four quarter car suspensions and a suspended vehicle body, comprising the steps of developing a quarter car command for each quarter...
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5401052 |
Vehicle suspension device for stabilizing steering characteristics
A vehicle suspension device includes a shock absorber disposed between a sprung portion and an unsprung portion of a vehicle for each of the vehicle wheels, a damping force changing device for...
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5383679 |
Arrangement of suspension system for automotive vehicle
An arrangement of a vehicular suspension system is disclosed in which each drive circuit which outputs a drive current to a corresponding one of the actuators installed on each shock absorber is...
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5367459 |
Apparatus for controlling dampers in a vehicle suspension system
An apparatus controls a damper connectable between a vehicle body and a vehicle wheel. A position sensor senses the amount of angular displacement between the vehicle body and the vehicle wheel and...
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5342079 |
Control apparatus for vehicle suspension mechanism
An electric control apparatus for a vehicle suspension mechanism of which the spring constant and damping force can be controlled independently to one another, wherein a vertical displacement...
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5342080 |
Vehicle height control system
A vehicle height control system has oil under pressure generated by a pump, the oil being charged into and discharged from a cylinder that is provided for each wheel through a charge-discharge...
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5324068 |
Method for semiactive chassis control
In a method for semiactive chassis control, in particular for damping resilient wheel suspension systems in vehicles, having a piston displaceable in a cylinder and subdividing it into two work...
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5322319 |
Active suspension apparatus for a vehicle
An active suspension apparatus is provided for a vehicle which includes an actuator being extensible and retractable and provided between a vehicle body and a wheel so that the force of the vehicle...
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5316272 |
Liquid spring vehicular suspension system and associated control apparatus
A vehicular suspension system incorporates, at each wheel, a liquid spring which internally utilizes a compressible liquid to generate spring and damping forces that yieldingly resist vertical...
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5295705 |
Automobile suspension including control of variable damping coefficient shock absorber
Disposed between a sprung element and an unsprung element is a shock absorber of multi-degree variable-damping-coefficient type. The change control of the damping coefficient is carried out so that...
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5288101 |
Variable rate torsion control system for vehicle suspension
The invention relates to a stabilizing apparatus for a motor vehicle using a torsion bar for conveying torsional forces from one location on a motor vehicle to another location on a motor vehicle....
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5263737 |
Device for stabilizing the attitude of an automobile
A device for stabilizing the attitude of an automobile having an automobile body and lefthand and right-hand road wheels which are rotatably supported on the automobile body, includes cylinder...
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5215327 |
Vehicle suspension
The stiffness of the suspension is very much a function of the load in hydro-pneumatic vehicle suspensions. With high loads the vehicle suspension is stiff and with a light load it is relatively...
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5201389 |
Method of varying a suspension damping force as a vehicle is steered
A method for varying the damping force of a hydraulic damper in a vehicular suspension system includes rotatably fixing a reciprocable piston slidably mounted in a fluid-filled cylinder to the...
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5199737 |
Method of controlling a semi-active chassis
A method of controlling the resilience of a vibration suppressor for motor vehicles with variable valves. The controls (RG) generate a parameter (I) for varying the resilience (D) and distinguish...
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5193844 |
Suspension system for a vehicle
In a suspension system of a vehicle which the damping force characteristic is changed into three or more characteristics, the damping force characteristic is changed step by step when the damping...
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5180186 |
Strut and method for steer-sensitive damping
A hydraulic damper for use with a vehicular suspension system includes a reciprocating piston rod and piston in an inner cylinder. A piston valving means is carried by the piston and controls the...
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5165715 |
Suspension system for automotive vehicle
The posture of the automotive vehicle body is controlled by supplying or discharging the operating fluid to or from the cylinder unit for each wheel, which is interposed between a sprang weight and...
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5161816 |
Suspension control apparatus
A suspension control apparatus for a vehicle having at least one shock absorber with a controllable damping force. The suspension control apparatus includes a roll angular velocity sensor for...
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5152547 |
Dual piston strut
A vehicular suspension system incorporates, at each wheel, a liquid spring which internally utilizes a compressible liquid to generate spring and damping forces that yieldingly resist vertical...
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5149131 |
Hydraulic damping device for vehicles
A damping device is installed between a vehicle body and desired two of wheels and provided with a damping force producing mechanism for producing a larger damping force when the two wheels make...
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5145205 |
Vehicle suspension system
A vehicle suspension system has liquid pressure cylinder devices provided between the respective wheels and the vehicle body. Supply and discharge of hydraulic liquid to and from the liquid...
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5138554 |
Suspension controller
In the suspension controller of the present invention, there is provided a suspension or stabilizer characteristic change-over determining device whereby a damping force or a spring constant of a...
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5137300 |
Vehicle suspension with auxiliary leaf spring and squat control system
Selectively engagable auxiliary leaf springs (38) for vertically supporting a vehicle chassis (32) on an axle assembly (22) in parallel with main suspension springs (34). Forward and rear ends...
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5085460 |
Working fluid circuit for automotive active suspension system with enhanced take-up characteristics upon initiation of operation
An active suspension system is provided a timing control valve in a supply line. The timing control valve is so designed as to provide a predetermined magnitude of delay in building up line...
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