517 results about "Vehicle suspension system" patented technology

The invention relates to a suspension system control method and system of a vehicle and a storage medium, and the method comprises the steps: carrying out the information fusion of a current road image, road point cloud information and the state information of the vehicle, and obtaining a target road unevenness grade which can reflect the condition of a target road after the historical road unevenness grade is considered; meanwhile, the feedforward damping force of the suspension system when the vehicle is about to run on the target road surface is predicted according to the unevenness level of the target road surface, and in the process that the vehicle runs on the target road surface based on the feedforward damping force, feedback damping force used for compensating the feedforward damping force can be calculated in real time according to vehicle body parameters of the vehicle; therefore, the vehicle can stably run on the target road surface, and the driving comfort performance of the vehicle under the condition of the unsmooth road surface based on the control strategy is further improved.

The invention belongs to the technical field of vehicle suspension vibration isolation, and particularly relates to a distributed driving vehicle suspension system and an active-disturbance-rejection control method, and the method comprises the following steps: 1, constructing a distributed driving vehicle suspension structure model based on active-disturbance-rejection control; 2, analyzing and expressing the active disturbance rejection control method; step 3, solving an internal parameter and a target function of the active-disturbance-rejection control strategy with the optimal performance by adopting an optimization algorithm; and 4, performing dynamic performance simulation analysis. The method has the beneficial effects that the dynamic characteristics of the complex system can be described more accurately; and the riding comfort of the vehicle is improved.

The invention discloses a control method, device and equipment of a semi-active suspension and a storage medium, and relates to the technical field of vehicle engineering.The control method of the semi-active suspension comprises the steps that under the condition that a vehicle-mounted system does not have a fault, driving modes are distinguished according to a mode selection signal, and a current driving mode is obtained; when the current driving mode is not the deceleration strip mode, determining a target control strategy according to the current driving mode; and controlling the semi-active suspension according to the target control strategy. The vehicle suspension system can be adjusted according to different driving requirements and road conditions, more excellent driving feeling and safety are provided, a driver can switch between a comfortable driving mode and a motion driving mode through an accurate control strategy, meanwhile, better vehicle stability and control performance are obtained under different road conditions, and the driving experience of the driver is improved. The smoothness of the vehicle and the road adhesiveness are improved, and the overall driving comfort and safety are improved.

The invention relates to a vehicle dynamic adjustment method for a side collision accident, and the method comprises the following steps: S1, collecting vehicle body multi-dimensional information data information, vehicle environment information data information and vehicle passenger information data information, and building a real-time updated data model through data fusion; training a neural network according to virtual collision data generated by the vehicle collision simulation software to obtain a collision risk prediction model; s2, inputting data in the model into a collision risk prediction model to obtain the injury degree of a passenger and collision prediction position point information, dividing the state between a vehicle and a potential collision object into different risk levels, and generating a risk map; and S3, the vehicle adjusting system adjusts the height, the speed and the seat posture of a vehicle suspension system and a vehicle safety belt according to the different risk levels, risk prompting is carried out on vehicle passengers so as to reduce the risk levels, and the risk map is updated in real time. According to the invention, the safety of passengers in a side collision accident can be improved.

An electric wheel controller and methods for operating and manufacturing an electric wheel controller are disclosed. Embodiments include a controller forming a structural and / or load bearing component of the vehicle suspension system. Embodiments of the controller can be mounted to a wheel assembly, and in some embodiments the controller is a suspension knuckle. Embodiments include a controller with a cavity and electronic circuitry submerged in liquid coolant. During operation the coolant can absorb heat from the immersed circuitry. In some embodiments the coolant transitions to a gas and / or vapor, and can move to an upper portion of the cavity. When the coolant contacts the cooler surfaces of the cavity the coolant can transition back to a liquid and return to a pool of liquid coolant in which the circuitry is immersed. A heat sink can be connected to the controller, such as by laser soldering.

A control system for a vehicle, comprising one or more controllers, configured to receive a collision warning signal, and modify one or more parameters of the vehicle suspension system in response to the received collision warning signal. In this way, the suspension may be automatically configured in a manner which assists the driver in carrying out a vehicle manoeuvre to avoid a potential collision.

A control system for a vehicle is provided, the control system comprising one or more controllers, the control system configured to receive an acceleration or deceleration demand signal from an automatic cruise control system, and request modification of one or more parameters of the vehicle suspension system in response to the received acceleration or deceleration demand signal. In this way, the vehicle suspension system may be modified in preparation for an acceleration or deceleration of the vehicle, to inhibit or at least reduce the occupants of the vehicle experiencing an undesirable pitching movement of the vehicle during the course of the change in speed of the vehicle.

The invention discloses an intelligent self-adaptive vehicle suspension system based on deep learning and a control method, and belongs to the technical field of vehicle suspensions.The system comprises a quantum state collaborative sensing module, a Lie group road condition prediction module, a topology invariant optimization module and a dual closed-loop control module; the quantum state collaborative perception module realizes multi-sensor deep fusion based on a quantum state entanglement theory, the fusion precision is improved by more than 40%, the Lie group road condition prediction module establishes a road surface dynamic evolution model by using a special Euclidean group SE (3), the prediction precision is improved by 45%, and the topology invariant optimization module extracts road surface topology invariants through continuous coherence, so that the road surface dynamic evolution model is optimized. The suspension parameters are optimized on the octyl manifold, the convergence speed is increased by 60%, the dual closed-loop control module constructs a forward prediction and backward correction double closed loop, the response time is shortened to 15 milliseconds, and the comfort and controllability of the vehicle are remarkably improved.

A suspension system including hydraulic circuits that extend between dampers located at opposite corners of the vehicle and at least one load distribution unit that is connected in fluid communication with at least two hydraulic circuits. The load distribution unit includes a manifold block with a cylinder bore, a pair of pressure tubes, a piston rod assembly, and a pair of reserve tubes. The pressure tubes are partially received in the cylinder bore to define a pair of opposed cylinders. The piston rod assembly includes a piston rod and a pair of opposed pistons that are slidingly received within the opposed cylinders. The reserve tubes are at least partially received in the cylinder bore and are arranged annularly about the pressure tubes to define a first pair of reservoir chambers between the pressure tubes and the reserve tubes.

The invention relates to a vehicle control method and system and a vehicle, and belongs to the technical field of vehicle control. The method comprises the steps that a vehicle suspension and suspension system comprehensive dynamical model is established, and in the vehicle running process, vehicle running data are collected and comprise vehicle body acceleration data, road surface preview data and engine rotating speed data; calculating and generating a control instruction of the vehicle suspension system based on the vehicle operation data so as to adjust the state of the vehicle suspension system; and calculating and generating a control instruction of the vehicle suspension system based on the vehicle operation data so as to adjust the state of the vehicle suspension system. According to the control method provided by the invention, cooperative control of the vehicle suspension system and the vehicle suspension system is realized, the vibration suppression effect is obviously improved, and the riding comfort on road sections with different jolts can be improved.

A vehicle that includes a first rotatable frame that includes a first wheel assembly and a second wheel assembly. The vehicle also includes a second rotatable frame that includes a third wheel assembly and a fourth wheel assembly. The vehicle further includes a base frame configured to support a weight-bearing load. The vehicle further includes an axle member engaging the first rotatable frame, the second rotatable frame, and the base frame, wherein the first rotatable frame is rotatable about the axle member relative to the base frame and independent of the second rotatable frame, and the second rotatable frame is rotatable about the axle member relative to the base frame and independent of the first rotatable frame.

Embodiments of the present disclosure include apparatuses and methods for mounting an electronic component, including an integrated circuit that generates heat during operation, to a component of a vehicle suspension system, such as a suspension knuckle. Some embodiments include mounting the electronic component inside a cavity that contains coolant. In some embodiments the electronic component is immersed in liquid coolant that absorbs heat from the electronic component and transfers the heat to the suspension component where the heat can be transferred to the external environment. In some embodiments the liquid coolant transitions to a gas and / or vapor, and can condense back to a liquid after transferring heat to the suspension component. In some embodiments the electronic component is connected to a heat sink, such as by soldering, and the heat sink can include cooling fins that are immersed in the coolant.

The invention discloses a control method of a cooperative energy feedback suspension system, and belongs to the technical field of vehicle suspension systems, and the control method comprises the following steps: S01, information acquisition; s02, road condition judgment; s03, performing disconnection control on the stabilizer bar; s04, connecting and controlling the stabilizer bar; s05, energy recovery and output control; s06, carrying out smoothness control; and S07, performing dynamic adjustment. The method has the beneficial effects that by intelligently judging the vehicle driving state and the road condition, connection and disconnection of the active stabilizer bar and energy recovery and output strategies of the shock absorber and the active stabilizer bar are flexibly controlled according to different working conditions. Under various complex working conditions such as turning, hollowing and bumping, the system can efficiently recover energy, the application range of energy recovery is remarkably expanded, the total energy recovery amount is increased, then the endurance mileage of a battery is prolonged, and the problems that in the prior art, the energy recovery efficiency is low, and the application range is limited are solved.

The invention discloses a linear motor shock absorber, belongs to the field of vehicle shock absorbers, and aims at improving the shock absorption performance adjusting capacity. Comprising an upper connecting structure, a spring, an oil storage barrel, a working cylinder and a piston rod, the bottom end of the working cylinder is connected with a compression valve, the working cylinder and the compression valve are arranged in the oil storage barrel, a sliding pair is formed between the piston in the working cylinder and the working cylinder in the axial direction of the working cylinder, the top end of the piston rod is connected to the upper connecting structure, and the bottom end is inserted into the working cylinder and connected to the piston; the spring is telescopically arranged in the vertical direction and is connected between the upper connecting structure and the oil storage barrel; the device is characterized in that the outer wall of the oil storage cylinder is connected with a permanent magnet; the periphery of the oil storage cylinder is sleeved with a motor shell, and a motor coil is arranged on the inner wall of the motor shell; and the motor shell is movably matched with the motor shell along the vertical direction. According to the novel linear motor shock absorber, the linear motor is integrated on a traditional shock absorber, the brand-new linear motor shock absorber is formed, the driving stability and comfort can be improved, and the linear motor shock absorber can achieve rapid and accurate control over a vehicle suspension system.

The utility model discloses a suspension system and a vehicle, the suspension system comprises: a shock absorber, the shock absorber comprises a sleeve and a piston, the piston is movably installed in the sleeve to divide a first cavity and a second cavity, and the piston is connected with a piston rod penetrating through the first cavity; the driving pump is connected with the first cavity through a first flow path, the driving pump is connected with the second cavity through a second flow path, and the driving pump is constructed to be capable of switching the flow direction of the liquid medium between the first cavity and the second cavity; the energy accumulator module comprises a first energy storage cavity with variable volume, an air cavity and a second energy storage cavity, the volume of the air cavity is variable due to the variable volume of the first energy storage cavity and / or the second energy storage cavity, an inlet and an outlet of the first energy storage cavity are connected with the first flow path, and an inlet and an outlet of the second energy storage cavity are connected with the second flow path. Therefore, the suspension system can be conveniently switched among different modes, the multiple modes do not influence one another, and the reliability of the suspension system can be improved.

The invention relates to the technical field of vehicle suspension system control, and discloses a multi-source data fused shock absorber self-adaptive regulation and control method and system.The method comprises the steps that multi-source signal data are synchronously collected through a sensor, and a preliminary signal set is generated in combination with environment change data; analyzing vibration signal peak amplitude and displacement data integral variation trend, distinguishing high-frequency small-acceleration and low-frequency large-amplitude pavement excitation characteristics, and determining signal contribution degree distribution; dynamically adjusting the signal weight and introducing temperature compensation to correct stiffness drift to generate a weighted vector; carrying out weighting processing, smoothing, noise suppression and nonlinear amplitude estimation to generate fusion data, and optimizing the weight to obtain a refined weighted vector; after secondary fusion, a cross-frequency-band transition smoothing technology and a least square method are adopted to determine damping characteristic parameters; according to the vehicle suspension system self-adaptive regulation and control method and system, the self-adaptive regulation and control accuracy and the working condition adaptability of the vehicle suspension system are improved.

The embodiment of the invention discloses a vehicle suspension system, a vehicle data generation method and a vehicle, and belongs to the field of carriers. The vehicle suspension system comprises a vehicle frame; a wheel bracket; the height adjusting part is respectively connected with the frame and the wheel bracket and is used for adjusting the distance between the frame and the wheel bracket; the angular displacement sensor is respectively connected with the frame and the wheel bracket, and when the distance between the frame and the wheel bracket is changed, the angular displacement sensor generates angular displacement; the controller is configured to obtain the angle value of the angular displacement sensor; and calculating the height and the vertical acceleration of the frame according to the angle value. The embodiment of the invention has the technical effects that the monitoring of the height and the vertical acceleration of the frame is completed only by using one sensor, and the cost of the vehicle is reduced.

A vehicle suspension system for vehicle height adjustment comprises: a damper for adjusting a height of a vehicle with neutral pressure by driving a piston up and down in a space inside a damping cylinder in which fluid is accommodated to a pressurization region in a pressurization direction and a restoration region in a restoration direction; an actuator, connected to a flow path of the damper, for adjusting the neutral pressure of the damper; a two-way control valve that operates on and off to allow and block movement of the fluid in the damping cylinder and the fluid in the hydraulic cylinder in both directions; a reservoir for regulating gas pressure in the damping cylinder; and a control unit that controls a pressure of the motor pump of the actuator.

The invention provides a suspension control method and system based on actual measurement damping force of a shock absorber and a vehicle. The method comprises the following steps: acquiring an actually measured damping force value of a shock absorber in a vehicle suspension system; the design value of the damping force of the shock absorber is obtained, and the correction coefficient of the shock absorber is obtained based on the relation between the actually-measured damping force value of the shock absorber and the design value of the damping force of the shock absorber; and acquiring and outputting a control current for controlling the shock absorber based on the correction coefficient. According to the method, the control parameters in the control algorithm are corrected through the actual damping force of the shock absorber, it is guaranteed that correction can be conducted according to the actual situation whether the actual damping force is too large or too small, more accurate damping force output is achieved, the suspension control accuracy is effectively improved, and the whole vehicle control effect is better.

Aspects relate to a control system and method for a vehicle suspension system in a vehicle. The control system (100, 200) is configured to: receive a disturbance angle (316) of a roll bar of the vehicle suspension system, the disturbance angle indicative of a determined relative angular displacement between ends of the roll bar caused by the vehicle interacting with a driving surface; receive a displacement value (322) of an actuator motor of the actuator of the vehicle suspension system, the displacement value of the actuator motor indicative of a sensed displacement of the actuator motor caused by the vehicle interacting with the driving surface; determine, in dependence on the disturbance angle of the roll bar and the displacement value of the actuator motor, a torque estimation (332), the torque estimation representing an expected torque provided by the actuator motor to a roll bar connected to the actuator motor; and output the torque estimation to a further vehicle system.

Motor-vehicle suspension system (1), comprising a transversal leaf spring (2) arranged transversely with respect to the longitudinal direction of the motor-vehicle, connected to the motor-vehicle structure by means of two elastic blocks (5) symmetrically arranged at respective intermediate portions (2''') between the center of the leaf spring (2) and its end portions (2''), said transversal leaf spring (2) being configured as a foil spring adapted to oppose the vertical movements of the two wheel supports (4). The suspension system (1) also comprises a transversal active block (17) comprising: - a support body (18) having opposite end parts (18') connected to the elastic blocks (5) and a main part (18'') extending along a central portion (2') of the foil spring between the two elastic blocks (5), - an elastomeric component (19) mounted on said main part (18''), defining an internal chamber fillable with a pressurized fluid, connectable to a pressurized fluid supply system, - wherein said elastomeric component (19) is activated following filling of the internal chamber, to switch from an inactive configuration in which the outer surface of the foil spring is not in contact with the elastomeric component (11), to an active configuration in which the elastomeric component (19) has an enlarged volume for creating an abutment surface in contact with the foil spring.

Aspects of the present invention relate to a control system (100, 200) for a vehicle suspension system (300) of a vehicle (600). The control system comprises one or more controllers. The control system is configured to: determine that a first subsystem (302) of the plurality of connected subsystems is operating in a de-rated mode in response to a subsystem operating condition of the first subsystem being outside a predetermined operating window; and in dependence on determining that the first subsystem is operating in the de-rated mode, transmit a de-rate indicator to a further subsystem (304, 306) of the plurality of connected subsystems, wherein the de-rate indicator is configured to: indicate, to the further subsystem, that the first subsystem is operating in a de-rated mode; and cause the further subsystem to operate in a de-rate response mode, wherein the operation of the vehicle suspension system with the first subsystem operating in the de-rated mode and the further subsystem operating in the de-rate response mode provides a higher level of vehicle control in comparison to the vehicle suspension system operating with the first subsystem operating in the de-rated mode without the further subsystem operating in the de-rate response mode.

The invention relates to a vehicle suspension system, method and device and a vehicle, and the vehicle suspension system comprises a plurality of height sensors which are used for detecting the height of a vehicle body; and in the state that the height sensor fails, the pitch angle and the roll angle of the vehicle body are adjusted, so that the pitch angle and the roll angle are adjusted to be within the corresponding first angle ranges.

The invention belongs to the field of vehicle suspension system control, and particularly relates to vehicle suspension system control applying an inertial container device, in particular to a vehicle suspension control method based on dynamic surface control, which comprises the following steps of: establishing a whole vehicle controlled model; solving a strict feedback system of a whole vehicle kinetic equation; defining a position error; designing an intermediate virtual variable; dynamic surface control; and the electromagnetic thrust is solved. According to the method, coordination control of the vehicle suspension system can be achieved, the riding comfort of the vehicle is improved, and the method provides a new research thought and direction for design and application of the vehicle suspension.

Motor-vehicle suspension system (1), comprising a transversal leaf spring (2) arranged transversely with respect to the longitudinal direction of the motor-vehicle, connected to the motor-vehicle structure by means of two elastic blocks (5) symmetrically arranged at respective intermediate portions (2''') between the center of the leaf spring (2) and its end portions (2''), said transversal leaf spring (2) being configured as a foil spring adapted to oppose the vertical movements of the two wheel supports (4), wherein each elastic block (5) comprises: - an outer reinforcement (10), - at least two elastomeric components (11) included inside the outer reinforcement (10), mutually placed side by side along the longitudinal direction of the leaf spring (2) and surrounding the leaf spring (2) along all its sides at said intermediate portion (2'''), wherein said at least two elastomeric components (11) respectively shape an internal chamber fillable with a pressurized fluid, - a valve body (17) having an inlet port (17') connectable to a pressurized fluid supply system and at least two outlet ports (17'') respectively in communication with said at least two elastomeric components (11), - wherein said at least two elastomeric components (11) are selectively activated by filling the internal chamber, to pass from an inactive configuration in which the outer surface of the leaf spring (2) is not in contact with the elastomeric component (11), to an active configuration in which the elastomeric component (11) has an enlarged volume for creating a grip effect on the leaf spring (2) at said intermediate portion (2''').

The invention discloses a vehicle oil damper and an intelligent monitoring system thereof, and relates to the technical field of vehicle suspension systems, the vehicle oil damper comprises a dustproof sleeve, the dustproof sleeve is made of high-strength steel, the top of the dustproof sleeve is fixedly connected with an upper sealing plate through welding, and a first sealing ring is embedded in the bottom of the upper sealing plate; the surface of the first sealing ring makes contact with the inner wall of the dustproof sleeve, and the bottom of the upper sealing plate is fixedly connected with an airtight ring. According to the invention, by integrating a multi-dimensional sensor network and a data fusion algorithm, real-time, accurate and deep perception and fault diagnosis of the working state and the health state of the shock absorber are realized; according to the intelligent processing unit based on the heterogeneous multi-core architecture, various faults such as nitrogen leakage, sealing failure, oil emulsification and abnormal wear can be warned in advance, and the damping characteristic is compensated through the performance self-adaptive adjustment module, so that the reliability, safety and riding comfort of a suspension system are improved.

The utility model discloses an integrated rear suspension lower support for a commercial vehicle cab, and relates to the technical field of vehicle suspension systems. According to the technical scheme, the integrated rear suspension lower support for the commercial vehicle cab comprises a support body, a first fixing hole is formed in the support body, the first fixing hole can be connected with a vehicle frame, a first connecting hole is formed in the support body, the first connecting hole can be connected with a cab suspension, a second connecting hole is further formed in the support body, and the first connecting hole can be connected with the cab suspension. The second connecting hole can be connected with an air inlet system or an exhaust system. The integrated rear suspension lower support has the advantages that the integrated rear suspension lower support integrates a plurality of connecting functions, the weight of a whole vehicle is remarkably reduced, material cost is reduced, the space layout in a vehicle frame is optimized, and convenience is provided for continuous optimization and development of the vehicle.

A vehicle suspension energy reclamation generator for converting vertical movement of a vehicle in motion into electrical energy is disclosed. The vehicle suspension energy reclamation generator includes a vertically collapsible frame, a frame biasing spring configured to expand the frame to a normal height under a predetermined weight, and an electrical generator having a rotatable hollow generator shaft. One or more mounts attach the frame and the electrical generator between a vehicle chassis and a vehicle suspension system. At least one drive mechanism connects to the frame and the rotatable hollow generator shaft. The vertical movement of the vehicle suspension system of a vehicle in motion causes the frame to collapse and expand. The collapse and expansion of the frame imparts spinning motion on the rotatable hollow generator shaft via the at least one drive mechanism. The generator converts the vertical movement of the vehicle into electrical energy.

A vehicle suspension system includes a support member coupled to a vehicle body, a shock absorber connecting the support member and the vehicle body and absorbing the road surface impact, a steering section pivotably mounted on the support member, and an in-wheel motor section coupled to the steering section in an interworking manner and mounted on a wheel to provide driving force.

The embodiment of the invention provides a vehicle suspension system and a vehicle. The vehicle suspension system comprises a suspension frame which comprises a cross beam, and the cross beam is located behind the wheel center of the vehicle in the forward direction of the vehicle. The cross beam is located on the rear side of the wheel center of the vehicle, and correspondingly, the shearing center of the suspension is also located on the rear side of the wheel center, so that the front space of the suspension can be released, relevant important parts such as a driving device and an energy storage device of the vehicle can be arranged, and the utilization rate of the rear axle space of the vehicle is increased; the problems that the space of the vehicle rear axle is limited and is difficult to effectively utilize are solved.