Provided is an electric suspension device including an electromagnetic actuator that is provided between a body and wheel of a vehicle and generates damping force for damping vibration of the body. It includes: an information acquisition unit that acquires information on a sprung speed and sprung acceleration of the vehicle; a bounce target value computation unit that computes a bounce target value for controlling the vehicle's bounce orientation based on the sprung speed; and a driving control unit that controls driving of the actuator with a control target load which is based on the bounce target value. The bounce target value computation unit has a bounce target load map in which the bounce target value is associated with the sprung speed. The bounce target value computation unit adjusts a width of a dead zone set in the map based on the information on the sprung speed and sprung acceleration.

An electronically controlled suspension control system of a vehicle using road surface information may include a road surface recognition unit of recognizing a road surface, a road surface profile determination unit of determining a road surface profile using information as to the recognized road surface, a behavior estimation and determination unit of estimating and determining a vehicle behavior according to the determined road surface profile, a behavior information recording unit storing information as to the behavior of the vehicle, an electronically controlled suspension (ECS) control unit of controlling a suspension of the vehicle, and a behavior determination and control unit of comparing a determined value from the behavior estimation and determination unit with recorded values of the behavior information recording unit, determining a behavior level of the vehicle, based on results of the comparison, and sending a control command according to the determined behavior level to the ECS control unit.

A utility vehicle includes a wheel, a vehicle body frame supported by the wheel, a suspension device connecting the wheel to the vehicle body frame, and an acceleration sensor mounted on the suspension device. The suspension device includes: a below-shock absorber member including an arm swingably connecting the wheel to the vehicle body frame; and a shock absorber connecting the below-shock absorber member to the vehicle body frame. The acceleration sensor is mounted on the arm.

The present disclosure relates to a method and an apparatus for controlling an electronic control suspension using a deep learning-based road surface classification model. The method for controlling an electronic control suspension in a vehicle including a camera and a GPS receiver may include collecting location information of the vehicle using the GPS receiver while driving, identifying whether there is a previously generated road surface classification model corresponding to a front obstacle when the front obstacle is detected, determining a first control value based on a first characteristic value corresponding to the road surface classification model when there is the road surface classification model as a result of the identification, controlling the electronic control suspension with the determined first control value when entering the obstacle, and collecting new sensing data through a physical sensor, and correcting the first characteristic value based on the new sensing data.

A method of controlling a vehicle is provided. The method includes: identifying detection signals output through a plurality of detectors during travel, identifying the detection signal that changes in response to a state of a road surface among the identified detection signals, acquiring detection information corresponding to the state of the road surface based on the detection signals, recognizing the state of the road surface based on detection information for each state of the road surface stored in a non transitory memory and the acquired detection information, and controlling the plurality of suspension devices based on the recognized state of the road surface and information regarding a control strategy of the suspension device for each state of the road surface stored in the storage.

An electronically controller external damper reservoir assembly (eRESI) can be connected to a passive damper and/or substituted for an existing external reservoir to provide semi-active damping control. The eRESI includes a reservoir and a variable base valve assembly actuated by an actuator. A controller is in communication with the actuator and a sensor providing input signal indicative of vehicle movement and is programmed to generate a damping control signal to the actuator based on the input signal, to dynamically control the damping force outputted by a passive damper hydraulically connected to the eRESI. A P/T sensor can be installed to a gas chamber of a vehicle damper to generate a P/T signal indicative of the pressure and temperature of the gas. The controller is programmed to determine a damper position of the damper based on the P/T signal.

An electronically controller external damper reservoir assembly (eRESI) can be connected to a passive damper and/or substituted for an existing external reservoir to provide semi-active damping control. The eRESI includes a reservoir and a variable base valve assembly actuated by an actuator. A controller is in communication with the actuator and a sensor providing input signal indicative of vehicle movement and is programmed to generate a damping control signal to the actuator based on the input signal, to dynamically control the damping force outputted by a passive damper hydraulically connected to the eRESI. A P/T sensor can be installed to a gas chamber of a vehicle damper to generate a P/T signal indicative of the pressure and temperature of the gas. The controller is programmed to determine a damper position of the damper based on the P/T signal.

Example methods and systems for optimizing vehicle ride performance are disclosed herein. An example apparatus includes a calculator to calculate a vertical velocity of a vehicle wheel and a comparer to perform a comparison of the vertical velocity to a threshold. The example apparatus includes a damping force manager to determine a damping force to be generated by a vehicle suspension system based on the comparison and a communicator to transmit a request including the damping force to be generated to the vehicle suspension system.

An apparatus for improving ride comfort of a vehicle includes: a sensing unit to sense whether an obstacle is present in a traveling direction of the vehicle and a quantity of behavior of the vehicle; a control value calculation unit to calculate control values for controlling the vehicle in a vertical direction and a pitch direction based on information sensed by the sensing unit; and a driving controller to control at least one of front wheels or rear wheels of the vehicle based on the calculated vertical-direction control values and pitch-direction control values. In particular, each of the vertical-direction control value and the pitch-direction control value includes a control value related to driving and braking the vehicle.

A vibration damping system configured to improve ride quality as well as controllability and stability of a vehicle. The vibration damping system is applied to a vehicle comprising a vehicle body suspension, and a seat suspension including a spring and a damper. The vibration damping system is configured to: estimate acceleration of a sprung seat mass and a resonance frequency when vibrations propagates to the sprung seat mass; calculate a target value of the acceleration of the sprung seat mass; and set a spring constant of the spring and a damping coefficient of the damper to values possible to achieve the target value of the acceleration of the sprung seat mass, before the vibrations propagate to the sprung seat mass.