Patent classifications
B60G17/0162
ACTUATOR FOR VEHICLE SWAY BAR ENGAGEMENT AND DISENGAGEMENT
A sway-bar actuator for a vehicle includes a motor that rotationally operates a lead rod to axially operates a push rod. Operation of the push rod axially operates an attachment fork between an engaged position and a disengaged position. The engaged position is characterized by a unified operation of opposing stabilizing bars. The disengaged position is characterized by independent rotational operation of the opposing stabilizing bars. A sensor rod is coupled to and operates axially with the attachment fork. A sensor assembly has a rotator and a sensor magnet. Axial operation of the sensor rod produces a rotational operation of the sensor magnet. The sway-bar actuator includes an encoder, where a rotational position of the sensor magnet relative to the encoder corresponds to an axial position of the attachment fork and the push rod relative to the engaged and disengaged positions.
Inertial regulation active suspension system based on vehicle posture deviation, and control method thereof
An inertial regulation active suspension system based on posture deviation of a vehicle and a control method thereof are provided. The system comprises a vehicle body, an inertial measurement unit, an electronic control unit, a servo controller group, a plurality of wheels, suspension servo actuating cylinders respectively corresponding to the wheels, and displacement sensors for measuring a stroke of the suspension servo actuating cylinders. The electronic control unit reads posture parameters of the vehicle body measured by the inertial measurement unit, and calculates a deviation between the postures of the vehicle body at a current moment and at a previous moment, and then outputs posture control parameters to the servo controller group. The servo controller group controls extension and retraction of each of the suspension servo actuating cylinders according to the posture control parameters and displacement feedback values of the displacement sensors.
Control of real-time damper in a sprung mass system
A method for reshaping an electric drive signal of a real-time damper in a sprung mass system includes detecting a periodic frequency and magnitude of a target periodic vibration of a sprung mass. The periodic vibration has velocity and elasticity components that are 90 degrees out-of-phase. An electric drive signal to the real-time damper is reshaped by a controller depending on polarity of the velocity component to thereby generate a composite drive signal. The damper is energized using the composite drive signal to modify a damper force. Reshaping the electric drive signal includes injecting a force and/or an intermittent drive suppression component onto the electric drive signal based on the frequency and magnitude. The sprung mass system may have a frame and body, motion and wheel speed sensors, the real-time dampers, road wheels, and a controller programmed to perform the method.
Suspension System with Improved Ability to Avoid Getting Stuck or Get Unstuck
A method of controlling a vehicle may include determining a proximity to a stuck condition based on measured vehicle motion parameters and a wheel speed measured by a wheel speed sensor associated with one or more wheels of the vehicle. The method may further include generating a notification to a driver of the vehicle in response to the proximity to the stuck condition indicating that the vehicle is either in a stuck condition or a nearly stuck condition, and responsive to driver selection of an unstuck mode, executing an unstuck algorithm to automatically control operation of the vehicle to achieve a free condition.
VEHICLE WITH TILT FRAME AND SPRING DAMPER SYSTEM
A vehicle with a base frame to which at least two sprung suspensions, in particular sprung wheel suspensions, for driven, non-driven, steerable or non-steerable contact elements, for example wheels, are attached which can be steered by means of a steering knuckle and are located on both sides of the longitudinal direction of travel, in each case transversely to the direction of travel, a tilt frame, tiltable in a tilt axis with respect to the base frame. A steering tube is rotatably attached to the tilt frame in the steering axis and automatically tilts with the tilt frame, at least one track rod connected to the track rod actuating element, and a linear or rotary track rod actuating element rotatable over a guide element. The track rod actuating element is displaced by tilting the tilt frame about the tilt axis and independently thereof by rotating the steering tube about the steering axis in such a way that the steerable contact element is given a steering movement by the track rod actuating element by means of the at least one track rod and no substantial change in the camber of the contact elements takes place during cornering, wherein the vehicle comprises at least one spring damper system which is suitable and provided for reducing a pendulum tilt of a tilt frame about the vertical zero position.
VEHICLE SUSPENSION SYSTEM WITH A SENSOR
The present disclosure relates to a vehicle suspension system comprising a vehicle body portion, a first suspension lever which is pivotably mounted with respect to a first pivot axis on a first region of the vehicle body portion and pivotably connects a wheel hub or a steering knuckle to said vehicle body portion, and a sensor, wherein the sensor is a rotation sensor and wherein a first sensor portion of the sensor is fixedly connected to the vehicle body portion and a second sensor portion is fixedly connected to the first suspension lever, wherein the first and second sensor portions are rotatable with respect to each other about a sensor rotation axis, and wherein the rotation angle between the first and second sensor portions with respect to each other indicates a pivot angle of the first suspension lever.
METHODS AND SYSTEMS FOR CONTROLLING VEHICLE BODY MOTION AND OCCUPANT EXPERIENCE
In one embodiment, one or more suspension systems of a vehicle may be used to mitigate motion sickness by limiting motion in one or more frequency ranges. In another embodiment, an active suspension may be integrated with an autonomous vehicle architecture. In yet another embodiment, the active suspension system of a vehicle may be used to induce motion in a vehicle. The vehicle may be used as a testbed for technical investigations and/or as a platform to enhance the enjoyment of video and/or audio by vehicle occupants. In some embodiments, the active suspensions system may be used to perform gestures as a means of communication with persons inside or outside the vehicle. In some embodiments, the active suspensions system may be used to generate haptic warnings to a vehicle operator or other persons in response to certain road situations.
Motorcycle
A motorcycle includes a steering actuator configured to steer a front wheel, an actuator control unit configured to control the steering actuator, a collision determination unit configured to determine whether or not a collision has occurred in a host vehicle, and a riding determination unit configured to determine whether or not an occupant is riding the host vehicle. When it is determined that a collision has occurred and determined that no occupant is riding the host vehicle, the actuator control unit executes a step of positioning the front wheel at a position deviating from a central position.
Stabilizer system for vehicle
In each of a first stabilizer device and a second stabilizer device, a stabilizer bar is supported by one or more cylinders, a communication passage via which two fluid chambers of each cylinder are connected is provided, and an opening-closing valve is disposed in the communication passage such that an inter-fluid-chamber communication state where the two fluid chambers communicate with each other and an inter-fluid-chamber shutoff state where the two fluid chambers are shut off from each other are selectively established. Hereby, a vehicle body roll restraining effect is achieved in the inter-fluid-chamber shutoff state while the vehicle body roll restraining effect is cancelled in the inter-fluid-chamber communication state. A linkage mechanism by which those two states of each of the stabilizer devices are changed in conjunction with each other is provided.
Vehicle
A vehicle includes wheels, suspension links, a torsion bar, and electronically controlled dampers. The suspension links support the wheels. The torsion bar generates a force to resist a tilting of the vehicle in the body roll direction. The electronic control dampers connect the torsion bar to the suspension links. At least a portion of each suspension links is located in front of the corresponding electronically controlled damper.