| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 280500508 |
Lateral vehicle disposition
| 68 |
| 280500514 |
Riding or suspension height (e.g., ground-clearance, "trim height")
| 64 |
| 280500515 |
Suspension stiffness for ride comfort (e.g., damping coefficient, spring rate)
| 40 |
| 280500520 |
Suspension geometry (e.g., camber, caster, toe-in/toe-out, wheel track, road contact)
| 39 |
| 280500507 |
Lateral and longitudinal vehicle attitude control (e.g., combinations of antidive, antipitch, antiroll, antisquat, antisway, antiyaw, riding, or suspension height)
| 26 |
| 280500503 |
Priority assignment between diverse control criterion
| 18 |
| 280500504 |
Including condition or parameter adjustment occurring at longitudinally spaced vehicle axles
| 15 |
| 280500513 |
Longitudinal vehicle disposition (e.g., antidive, antipitch, antisquat)
| 8 |
| 280500501 |
Including fail-safe override of hazardous condition | 2 |
| 20080309030 | FAILSAFE VALVE FOR ACTIVE ROLL CONTROL - A roll control device includes at least one actuator having first and second chambers. A pump is in fluid communication with the first and second chambers and is configured to transfer fluid between them. A motor is connected to the pump and is in communication with a controller. The controller is configured to selectively command the motor to drive the pump in response to a roll signal and transfer fluid between the first and second chambers in a desired direction. A failsafe valve is arranged between the pump and first and second chambers in one example. The failsafe valve includes a first open position in which the first and second chambers are fluidly connected to one another and bypass the pump. | 12-18-2008 |
| 20100032912 | SUSPENSION SYSTEM FOR VEHICLE - In a system in which an actuator force to be generated by an actuator is controlled based on a component sum that is a sum of a vibration damping component as the actuator force to be generated in a vibration damping control and a posture control component that is the actuator force to be generated in a body-posture control, a control in which the posture control component is limited so as to be not larger than a limit value is executable. The system ensures the actuator force that should be generated in the vibration damping control by limiting the posture control component, in a situation in which there is a limit in the actuator force that can be generated. Accordingly, a sufficient amount of a damping force can be generated, so that riding comfort of the vehicle and the like is prevented from being deteriorated. | 02-11-2010 |
| Entries |
| Document | Title | Date |
|---|
| 20080272560 | Vehicles and methods using center of gravity and mass shift control system - A center of gravity (C/G) control system for a vehicle includes sensors to measure the center of gravity shift and mass shift of the human body in relation to the vehicle, a controller to determine outputs, a dynamically adjustable vehicle system, and a power supply. The sensor measures the direction and rate of shift of the center of gravity and mass shift of the human and creates a representative input signal. The controller determines the appropriate outputs in response to the relative center of gravity shift data received. The dynamically adjustable vehicle system receives the controller output and performs the expected action. | 11-06-2008 |
| 20080290617 | Gas suspension system and method - A method of operating a gas suspension system includes generating a first quantity of gas having a storage pressure and transferring the first quantity of gas into the pressurized gas storage device such that a second quantity of gas having approximately the storage pressure remains in a transfer pathway. The method also includes determining that a condition exists for venting gas from the gas spring assembly and placing the second quantity of gas into fluid communication with a quantity of gas having said spring pressure. The method further includes waiting until an approximately equilibrium pressure has been reached, and then actuating a third control device to exhaust at least a portion of the gas from the suspension system. A gas suspension system adapted to perform the method is also included. | 11-27-2008 |
| 20080296852 | PLUG-IN BODY MOUNT DAMPING DEVICE FOR VEHICLES - A plug-in hydraulic body to frame mounting assembly is mounted to a conventional elastomeric body mount device to increase the control of vibration from the operation of the automotive frame to the automotive component supported thereon. The connecting member of the hydraulic mounting assembly threads onto the end of the fastener passing through the conventional elastomeric body mount device and anchors the outer can to a bridging can connected to the underside of the frame offrigger bracket to provide a true plug-n-go vibration control enhancement that can be added to any desired body mount location. The deflection of the fastener during operation of the elastomeric body mount device drives the operation of the hydraulic mounting assembly to dampen the deflection of the fastener in the elastomeric body mount corresponding to the transfer of operational loads between the body component and the offrigger bracket to which the body component is mounted. | 12-04-2008 |
| 20090230637 | HYDRAULIC SPRING SUPPORT SYSTEM - The invention concerns a hydraulic spring support system including a double acting hydraulic cylinder with a piston chamber and a rod chamber, a first accumulator that is connected constantly with the piston chamber, and a second accumulator that is connected constantly with the rod chamber. The invention proposes that the piston chamber and the rod chamber are connected to each other by a variable flow resistance. | 09-17-2009 |
| 20100201085 | AXLE AIR DUMP FOR MULTIPLE AXLE VEHICLES - A system and process for controlling vehicle loading on a multi-axle vehicle and improving maneuverability is disclosed. The system includes a reservoir of pressurized air and associated leveling valve that uses a relay valve to improve refill times when the vehicle returns from a dump mode operation to normal operation. The process reduces pressure in one or more of the axles when maneuvering the vehicle at predetermined slow speeds and maintaining that first predetermined pressure while the other axle(s) is at a greater pressure than the first axle. By preventing complete exhaustion of pressure from the suspension system, restoring air pressure is attained more quickly. Also, use of a relay valve enables higher flow rates to improve the refill time of the pneumatic suspension system after the dump operation. | 08-12-2010 |
| 20100230910 | PNEUMATIC FITTINGS FOR ACTIVE AIR SUSPENSION - A fitting for an active air suspension includes a housing with a central bore and a rigid tube having a first tube end inserted into the central bore with a second tube end extending outwardly of the housing. The first tube end includes a plastically deformed portion that prevents the rigid tube from being removed from the housing. A retention collar is used to secure a hose end to the second tube end. | 09-16-2010 |
| 20110109051 | Tunable pneumatic suspension - A tunable pneumatic suspension includes a piston and two opposed pneumatic chambers. The two champers apply opposed pneumatic pressures to opposite faces of the piston. The tunable pneumatic suspension also includes a pneumatic controller that independently controls the pressure in each of the chambers. The independent control of the two chambers allows the suspension to change the relative positions of the piston and the chambers by differing the pressures in each chamber, and allows the suspension to change its stiffness by increasing or decreasing the pressures in each of the chambers by equal amounts. If used in a vehicle, changing the relative positions of the piston and the chambers can change the ride height of the vehicle, and changing the stiffness of the suspension can change the stiffness of the vehicle's ride. | 05-12-2011 |
| 20110109052 | Parametric chassis system for vehicles, comprising four suspension elements, incorporating a lateral torsion bar and co-axial damper unit, in a box-module, that allows central location of heavy items, such as batteries - A chassis system and a suspension module for vehicles having wheel subsystems incorporates a lateral torsion bar and a co-axial enveloping damper unit, featuring active-adaptive suspension characteristics. Pre-fabricated suspension modules are situated inside respective box-structures, connected via wheelbase and track members, allowing the storage of heavy elements (e.g., batteries or fuel-cells) at the chassis. The robust and self-carrying chassis is enhanced, using upper body members, in terms of structural rigidity, for a given wheelbase, achieving high impact-energy absorbtion. The suspension arms incorporate upper and lower members, articulation, connect internally or externally to the suspension module, and transmit drive and brake forces to the wheels. The suspension module, box-structure, torsion-bar/damper unit, drive and transmission unit, suspension arm and steer module, featuring asymmetrical steer characteristics, can be reproduced on each corner of the chassis, featuring electronic control without mechanical connection (steer by wire), constituting the chassis of the vehicle. | 05-12-2011 |
| 20110175301 | AXLE-LIFTING DEVICE AND METHOD FOR LIFTING AN AXLE - An axle-lifting device for lifting an axle of a vehicle. The axle-lifting device includes a function mechanism for generating a force component in an axle-lifting direction. The function mechanism is configured to generate a first force component for providing a first functionality and a second force component for lifting the axle in the axle-lifting direction. | 07-21-2011 |
| 20110193300 | Counter-Rotating Motors with Linear Output - An actuator includes a first rotary motor, a second rotary motor, and a transmission coupled to the first and second rotary motors. The transmission converts rotation of the first rotary motor in a first direction and simultaneous rotation of the second rotary motor in a second direction to linear motion of an output shaft in a single direction. The actuator is usable in an active automobile suspension. | 08-11-2011 |
| 20110210525 | WHEEL SUSPENSION FOR MOTOR VEHICLES - The invention relates to a wheel suspension for motor vehicles with level adjustment of the body, having a vertical adjusting device ( | 09-01-2011 |
| 20110233880 | ACTIVE GEOMETRY CONTROL SUSPENSION SYSTEM AND ACTUATING DEVICE DRIVING THE SAME - An actuating device for an active control suspension system which is provided at both ends of a sub-frame of a vehicle body and connected to one end of an assist link having the other end mounted at a knuckle and which changes a position of a mounting point of the assist link at the vehicle body, may include a member bracket fixedly mounted at each end of the sub-frame, provided with openings formed at both sides and an upper surface thereof, and formed of a pair of slide grooves having arc shape at the both ends thereof to slidably receive a pair of slide plates therein; an actuator connected to both slide plates through a pin-bolt unit; and a cam-bolt unit assembling a bush of the assist link with both slide plates and setting an initial position of the mounting point of the assist link at the vehicle body. | 09-29-2011 |
| 20120018962 | STIFFNESS CONTROL USING SMART ACTUATORS - A stiffness control system and apparatus includes one or more stiffness elements which are each activated by a smart actuator including a smart material which may be one of a shape memory alloy (SMA), a magnetorheological (MR) fluid, an electrorheological (ER) fluid, and a piezo-stack. The stiffness control system includes a first and second interface adaptable to transmit input loads and a plurality of stiffness elements. A first stiffness element is operatively connected to the first and second interfaces and is continuously responsive to a change in system operating characteristics including input loads. A second stiffness element is selectively activated by the smart actuator so as to selectively respond to a change in system conditions. The continuous response of the first stiffness element can be selectively combined with the activated response of the second stiffness element to dynamically control system stiffness. | 01-26-2012 |
| 20140252730 | LATERALLY TILTABLE, MULTITRACK VEHICLE - A laterally tiltable, multitrack vehicle is disclosed. The vehicle includes a vehicle body and at least three wheels, with two of the wheels being assigned to a common axle to form a first wheel pair. A first wheel control part suspends the first wheel of the wheel pair from the vehicle body and a second wheel control part suspends the second wheel of the wheel pair from the vehicle body. The first wheel control part is configured to be coupled to the second wheel control part via a first gearwheel mechanism, and the second wheel control part is configured to be coupled to the first wheel control part via a second gearwheel mechanism. The first and second gearwheel mechanisms each have a negative transmission ratio between a drive shaft and an output shaft. The laterally tiltable, multitrack vehicle may be a motor vehicle. | 09-11-2014 |
| 20140252731 | LATERALLY TILTABLE, MULTITRACK VEHICLE - A laterally tiltable, multitrack vehicle is disclosed. The vehicle includes a vehicle body and at least three wheels, first and second wheels of the three wheels being assigned to a common axle to form a first wheel pair. The vehicle includes at least one wheel control part suspending each of the first and second wheels of the wheel pair from the vehicle body. At least one resilient element supports each wheel control part on the vehicle body. The resilient element has a non-linear spring characteristic with a spring rate which increases in a compression direction and decreases in a rebound direction. The vehicle may be a motor vehicle. | 09-11-2014 |
| 20140252732 | LATERALLY TILTABLE, MULTITRACK VEHICLE - A laterally tiltable, multitrack vehicle is disclosed. The vehicle includes a vehicle body and at least three wheels. The first and the second wheels are assigned to a common axle to form a first wheel pair. Each wheel of the wheel pair is rotatably mounted on a wheel support. The wheel supports of the wheel pair are connected to one another in an articulated manner via a double lever which is mounted rotatably at a first pivot point on the vehicle body. The wheel supports of the wheel pair also are connected to one another in an articulated manner via a parallel trailing arm, which runs parallel to the double lever and is configured to transmit lateral tilting of one wheel support to the other wheel support. Each wheel support of the wheel pair is configured to connect in a force-transmitting manner to the vehicle body via a link at at least one second pivot point which is spaced apart from the first pivot point for transmitting lateral tilting of the wheel support to the vehicle body, wherein the link forms an oblique angle with respect to the double lever. | 09-11-2014 |
| 20140252733 | LATERALLY TILTABLE, MULTITRACK VEHICLE - A laterally tiltable, multitrack vehicle is disclosed. The vehicle includes a vehicle body and at least three wheels. The first and second wheels are assigned to a common axle to form a first wheel pair. A first wheel control part suspends the first wheel of the wheel pair from the vehicle body and a second wheel control part suspends the second wheel of the wheel pair from the vehicle body. The first wheel control part is coupled to the second wheel control part via a double lever rotatably mounted on the vehicle body. At least two pivot points for the double lever can be defined on the vehicle body, the pivot points being spaced apart in a direction of a longitudinal extent of the double lever. | 09-11-2014 |
| 20140265168 | Active suspension with on-demand energy flow - Various embodiments related to hydraulic actuators and active suspension systems as well as their methods of use are described. | 09-18-2014 |
| 20140265169 | Integrated active suspension smart valve - Various embodiments related to hydraulic actuators and active suspension systems as well as their methods of use are described. | 09-18-2014 |
| 20140265170 | ACTIVE SUSPENSION WITH ON-DEMAND ENERGY FLOW - Various embodiments related to hydraulic actuators and active suspension systems as well as their methods of use are described. | 09-18-2014 |
| 20140353933 | REMOTELY ADJUSTABLE SUSPENSION COUPLING - Apparatus and associated methods relate to displacement-independent remote adjustable coupling of a first suspension member to a second suspension member. In an illustrative embodiment, the first suspension member may move substantially independently of any motion of the second suspension member, when in an uncoupled state. When in a coupled state, for example, the first suspension member may move in response to movement of the second suspension member. In some embodiments, the coupling between members may be performed by removing and/or stiffening one or more degrees of motion of the suspension system. For example, in some systems, a variable shock absorber may be stiffened in response to a control system signal. A remotely coupled suspension system may advantageously provide optimal suspension configuration for various riding conditions. | 12-04-2014 |
| 20150028549 | ACTIVE ROAD NOISE CONTROL SYSTEM - An active road noise control system for a vehicle ( | 01-29-2015 |
| 20150298521 | STABILIZER ARRANGEMENT FOR A WHEEL SUSPENSION OF MOTOR VEHICLES - A stabilizer arrangement in a wheel suspension for a motor vehicle includes a rotatably supported center part oriented in the vehicle transverse direction, and at least one leg projecting from the center part in the vehicle longitudinal direction and articulated via a substantially vertically extending rod with a control arm of the wheel suspension. A joint connection is arranged between the rod and the control arm outside a vehicle longitudinal member by a transverse clearance in the vehicle transverse direction, when the vehicle is in the compressed state. The rod is articulated to the control arm such that its force vector extending through the joint connections of the rod extends through the center axis defined by the control arm bearings. | 10-22-2015 |
| 20150316039 | INTEGRATED ENERGY GENERATING DAMPER - A linear energy harvesting device that includes a housing and a piston that moves at least partially through the housing when it is compressed or extended from a rest position. When the piston moves, hydraulic fluid is pressurized and drives a hydraulic motor. The hydraulic motor drives an electric generator that produces electricity. Both the motor and generator are central to the device housing. Exemplary configurations are disclosed such as monotube, twin-tube, tri-tube and rotary based designs that each incorporates an integrated energy harvesting apparatus. By varying the electrical characteristics on an internal generator, the kinematic characteristics of to the energy harvesting apparatus can be dynamically altered. In another mode, the apparatus can be used as an actuator to create linear movement. Applications include vehicle suspension systems (to act as the primary damper component), railcar bogie dampers, or industrial applications such as machinery dampers and wave energy harvesters, and electro-hydraulic actuators. | 11-05-2015 |
| 20150360530 | ACTIVE SUSPENSION APPARATUS FOR VEHICLE AND PUMP THEREOF - An active suspension apparatus for a vehicle including: a pump that adjusts a movement of a fluid; and an actuator in which the fluid is supplied to a coil spring and which compensates for displacement of the coil spring, wherein the actuator includes first, second, third, and fourth actuators that are disposed at a left front wheel, a left rear wheel, a right front wheel, and a right rear wheel of the vehicle, respectively, and the pump is capable of simultaneously supplying the fluid to the first and second actuators or to the third and fourth actuators based on driving of a motor. | 12-17-2015 |
| 20150360532 | ACTIVE SUSPENSION APPARATUS FOR VEHICLE - An active suspension apparatus for a vehicle includes actuators configured to compensate displacements of coil springs connected to wheels of the vehicle, a first pump configured to supply a fluid to one of the actuators on left and right front wheels of the vehicle among the actuators, and a second pump configured to supply a fluid to one of the actuators on left and right rear wheels of the vehicle among the actuators, in which the fluid contained in one of cylinders of the first pump and the second pump is supplied to at least one of the actuators based on driving of a motor. | 12-17-2015 |
| 20150375590 | WHEEL SUSPENSION FOR A MOTOR VEHICLE - The invention relates to a wheel suspension for a motor vehicle, said wheel suspension having a multi-link assembly ( | 12-31-2015 |
| 20180022179 | ACTIVE SUSPENSION SYSTEMS | 01-25-2018 |
