B60G2401/14

Expanding sensor domain coverage using differential active suspension

A vehicle having a control system to utilize a movable suspension to increase sensor coverage. The control system can detect an object of interest that is partially, or completely, outside the field of view of one or more sensors on the vehicle. The system can then use the movable suspension to raise one portion of the vehicle and/or lower another portion of the vehicle to bring the object of interest at least partially into the field of view of the sensor, increasing the effective field of view of the sensor. When an object of interest is determined to be significant (e.g., a traffic or street sign), the system can attempt to bring the object of interest into view of the sensor by tilting the vehicle. The system can use different tilt rates and/or tilt angles depending on whether the vehicle is occupied or not.

Active suspension device and control device for suspension

An ECU includes: a road surface height measurer which measures road surface heights at three or more points along a vehicle-width direction in front of a tire mounted on a wheel; a position detector which detects a position at which a difference of the road surface height from an adjacent road surface height is equal to or larger than a predetermined threshold among the road surface heights at three or more points measured by the road surface height measurer; and a corrector which corrects the road surface height at a position at which the difference detected by the position detector is equal to or larger than the predetermined threshold to a predetermined height.

Systems for hydraulic energy delivery

An exemplary energy delivery system includes a housing. The housing includes a linear motor including a translational member and an electromagnetic field generating member. Energization of the electromagnetic field generating member induces translation of the translational member along a longitudinal axis of the linear motor. The housing further includes a first cylinder including a first chamber and a movable first piston and a second cylinder including a second chamber and a movable second piston. The first and second cylinders are coupled in-line with the linear motor within the housing and translation of the translational member along the longitudinal axis translates the first piston within the first chamber in a first direction and translates the second piston within the second chamber in a second direction opposite the first direction.

Method for detecting a defective damper device of a vehicle

A method for detecting a defective damper device of a vehicle, including the following steps: monitoring the specific damper travel values (DW) of at least two wheel carriers of the vehicle in a monitoring period (UZ), determining the specific damper speeds (DG) and the specific damper accelerations (DB) on the basis of the monitored specific damper travel values (DW) in the monitoring period (UZ), acquiring the specific damper work values (DA) on the basis of the determined specific damper speeds (DG) and on the basis of the determined specific damper accelerations (DB), generating a comparison result (VE) from a comparison of the acquired specific damper work values (DA) with one another, and generating at least one specific status signal (SS) on the basis of the comparison result (VE) for the at least two wheel carriers.

SUSPENSION SYSTEM USING OPTICALLY RECORDED INFORMATION, VEHICLES INCLUDING SUSPENSION SYSTEMS, AND METHODS OF USING SUSPENSION SYSTEMS

A method for controlling a suspension system of a vehicle, as well as suspension systems, and a vehicle including a suspension system is provided. The suspension system may include at least one adjustable damping device that is controlled via a control signal, such as from a controller of the suspension system, in order to dynamically adjust the damping characteristic of the damping device. The control signal may be generated on the basis of at least one of current driving dynamics data and optically recorded information about an area of a ground surface.

CHASSIS-BASED FORCE NULLIFICATION SYSTEMS AND METHODS FOR SEATED AND STANDING VEHICLE OCCUPANTS
20190389269 · 2019-12-26 ·

System and method for nullifying one or more of lateral and longitudinal acceleration forces experienced by an occupant of a vehicle in a seated or standing position while the vehicle is traveling along a travel plane, including: a chassis structure; and an occupant cell one of coupled to and defined by the chassis structure; wherein one or more of the chassis and the occupant cell are configured to pivot one or more of: laterally at a longitudinal pivot point with respect to the travel plane; and longitudinally at a transverse pivot point with respect to the travel plane. Optionally, the chassis structure is configured to pivot one or more of laterally and longitudinally with respect to one or more wheel mechanisms operable for traveling over the travel plane. Optionally, the occupant cell is configured to pivot one or more of laterally and longitudinally with respect to the chassis structure.

METHOD AND APPARATUS FOR RESPONDING TO ROAD SURFACE DISCONTINUITIES

Disclosed embodiments are related to suspension systems including dampers and suspension actuators and related methods of control for mitigating the effects of potholes and other road surface discontinuities.

Electrically powered suspension system

An electrically powered suspension system includes: an actuator that is provided between a vehicle body and a wheel of a vehicle and generates a load for damping vibration of the vehicle body; an information acquisition part that acquires information on a sprung state amount and a road surface state; a target load calculation part that calculates a first target load related to skyhook control based on the sprung state amount and calculates a second target load related to preview control based on the road surface state; and a load control part. The target load calculation part calculates a third target load related to roll generation control based on a target roll angle and calculates a combined target load into which the first target load, second target load, and third target load have been combined. The load control part performs load control of the actuator using the combined target load.

VEHICLE RAMP ANGLE CONTROL

A control system (300) for controlling an active suspension system (104) of a vehicle (100), the control system comprising one or more controller (301), wherein the control system is configured to: detect (1004) a ramp (202) approached by an overhang of the vehicle; and in dependence on detecting the ramp, control (1020) the active suspension system to modify a relative ride height between a leading ride height at a set of leading wheels (FL, FR) of the vehicle and a trailing ride height at a set of trailing wheels (RL, RR) of the vehicle, to increase a ramp angle (, ) of the vehicle relative to the ramp.

Preview vehicle height control system and method of controlling the same

The present disclosure discloses a preview vehicle height control system and a method of controlling the same. The system includes a monitoring device configured to detect the road surface condition of a driving path of a vehicle, an active suspension configured to adjust a vehicle height, a memory configured to store a plurality of data maps distinguished based on a type of bump, each data map having a vehicle dynamic characteristic as an input and a tuning factor as an output, and a controller configured to derive the tuning factor based on a data map, among the plurality of data maps of the memory, corresponding to the bump detected by the monitoring device, derive a target vehicle height in a form of a Gaussian distribution by substituting the tuning factor, and control the active suspension to follow the derived target vehicle height.