98results about How to "Reduced risk of rollover" patented technology

A system and method are provided for improving the operational performance of a moving cement mixer vehicle with a rotatable mixing drum by automatically stopping the rotation of the mixing drum at select moments. The system may include a sensor adapted to deliver a signal indicative of an operational parameter, such as steering angle of the vehicle, and a processing unit adapted to receive the signal from the sensor and deliver a control signal based on the signal for stopping rotation of the mixing drum.

The invention discloses a rollover-preventing control method for a four-wheel steering automobile integrating a change of automobile speed. A rollover-preventing control system consists of a sensor, an ECU (electronic control unit) and an executing mechanism. The method comprises the following steps of firstly, enabling the sensor to measure the vehicle parameters, such as the wheel rotation angle, the automobile speed and the like, sending the vehicle parameters to the ECU, and calibrating the rollover evaluation value, wherein the rollover evaluation method is different from the traditional evaluation method, and directly utilizes the automobile speed and the rotation angle signal collected by the sensor to calibrate the front and back wheel rotation angles and corresponding extreme automobile speeds by an F (v, gamma) function; adding a working condition judging unit, adopting different control modes, and fully considering the intent of a driver; when the automobile speed is greater than the automobile extreme rotation angle, enabling the ECU to judge the working conditions according to the automobile speed, the wheel rotation angle, the rollover angle and the like, and adjusting the driving state of the automobile by the differential brake and the four-wheel steering executing mechanism, so as to further change the state of the automobile, and reach the rollover-preventing effect.

The invention discloses a safety system of a school bus. The safety system of the school bus comprises a bus body and a compartment. Passenger seats and a driver seat are arranged in the compartment. The safety system of the school bus is characterized by comprising a passenger locking prevention device, safety belt self-locking devices, a rollover prevention device, a driver state monitoring device and a main control device. By means of the passenger locking prevention device, the situation that a bus is locked when not all passengers leave the bus is effectively avoided, and ventilation, warning and other operations can be conducted automatically once it is found that passengers are trapped in the bus so that the life risk of the passengers trapped in the bus can be reduced; the potential safety hazard caused when a passenger does not tightly lock a safety belt is reduced through the safety belt self-locking devices; the rollover risk of the bus is reduced through the rollover prevention device; and the driver state monitoring device monitors the driving state of a driver and reminds the driver in time, and accordingly the situation that safety accidents are caused due to impaired concentration of the driver is avoided. Thus, the safety performance of the school bus can be greatly improved, the probability of occurrence of safety accidents is lowered, and the practical value is extremely high.

The invention provides a vehicle suspension control system and an automobile. The vehicle suspension control system comprises: a controller, an inflation section, a height sensor, a pressure sensor,a road condition sensor and a vehicle condition sensor, the height data of the air suspension of the vehicle is obtained through the height sensor, the pressure sensor obtains the air suspension pressure data of the vehicle, the road condition sensor acquires road condition data in a driving direction of the vehicle, the vehicle condition sensor acquires driving data of the vehicle, the controlleris then used to determine the air suspension adjustment data, according to the height data of the air suspension, the air suspension pressure data, the road condition data and the driving data and sends the air suspension adjustment data to the inflation section, so that the inflation section inflates or deflates the air suspension according to the air suspension adjustment data, thereby maintaining a stable posture of the vehicle body by changing the travel of the air suspension when the vehicle turns, thereby reducing the inclination angle of the vehicle occupant when passing through the bend, and enabling the vehicle occupant to ride comfortably. The present invention is characterized in that the air suspension can be inflated or deflated according to the air suspension adjustment data.

The invention discloses a rollover prevention control method for an electric vehicle based on a model predictive control algorithm, which comprises the steps of establishing a kinetic model for vehicle state observation and control based on vehicle plane kinetic model data and vehicle rollover kinetic model data; calculating the cornering stiffness of a tire in real time based on a transverse motion and yawing motion kinetic equation of the vehicle; meanwhile, estimating the vehicle state quantity in real time through an unscented Kalman filter method; designing a vehicle rollover prevention controller based on the model predictive control algorithm, specifically, establishing a state equation and an output equation of a prediction model, and performing linearization and discretization processing on the state equation and the output equation; establishing an objective function; constraining the input and the output; and converting the objective function into a standard quadratic programming form to be solved, and performing corresponding operation according to the comparison result of the detected rollover index of the vehicle and the set threshold, so that the rollover risk of thefour-wheel independent drive vehicle under certain limit working conditions is reduced, and the driving safety of the vehicle is improved.

The invention provides a truck rollover early warning device and method. By analyzing the actual gravity center height, gravity center horizontal position, the whole vehicle gravity center lateral deviation and the traveling speed of a truck, a front steering wheel turning angle threshold value is obtained and compared with the turning angle of a steering wheel operated by a driver, a control unit obtains a risk state discreet value R according to comparison between the actual steering wheel turning angle and the front steering wheel turning angle threshold value, when the risk state discreet value R is beyond the safety range, the control unit gives out a signal, a buzzer gives out an alarm sound, the driver is reminded to safely operate, the rollover risk of the truck is reduced, and the driver safety is improved.

The invention discloses a snow bike which comprises a bike frame, a handle bracket, a sled assembly and a rear transmission assembly. The handle bracket can be installed at the front end of the bike frame in a rotatable way, the sled assembly and the rear transmission assembly are respectively arranged at the lower end of the handle bracket and the rear end of the bike frame in a detachable way, the sled assembly comprises a main rod and a sled board, the upper side of the main rod is installed at the lower end of the handle bracket detachably, the sled board is arranged at the lower side of the main rod movably, and a shockproof buffer device is arranged between the main rod and the sled board. The snow bike has little body impact shock and is safe to use, and a crawler of the snow bike can grip land very firmly.

The invention discloses an automobile electronic anti-overturning control method. The automobile electronic anti-overturning control method includes: using an electronic anti-overturning device to detect and analyze the vehicle velocity V, the transverse acceleration a, the rolling angle Alpha, the pitch angle Beta, and the rolling angular velocity Omega in real time through the corresponding control strategy. The control method is not activated in the following one or more conditions including circuit failure, brake closure, air pressure alarm, uphill and turning, and a bump road, otherwise, the activation condition is met. The control strategy includes: (1) when the rolling angle Alpha and the rolling angular velocity Omega reach rolling preset thresholds; (2) when the rolling angle Alpha and the transverse acceleration a reach rolling preset thresholds; and (3) when the transverse acceleration a and the rolling angular velocity Omega reach rolling preset thresholds. The automobile electronic anti-overturning control method can set the corresponding strategy according to the travelling condition of an automobile on different roads; an advanced gas circuit principle is adopted, brake allocation is more reasonable in working, and the travelling posture of the automobile can be rapidly corrected.

An anti-rollover system of an electric vehicle comprises an electric vehicle battery pack, a lead screw guide rail, a stepper motor, a PLC and a pressure sensor. The electric vehicle battery pack is fixed to two sliding blocks of the lead screw guide rail. The two ends of the lead screw guide rail are provided with a first supporting seat and a second supporting seat. The stepper motor is fixed tothe second supporting seat. The pressure sensor is fixed to the lower portion of the first supporting seat. The data output end of the pressure sensor is connected with the data input end of the PLC.The data output end of the PLC is connected with the stepper motor. The PLC controls the stepper motor to rotate according to data collected by the pressure sensor so as to drive the electric vehiclebattery pack on the sliding blocks to move left and right. According to the provided anti-rollover system of an electric vehicle, the electric vehicle battery pack is utilized to adjust the gravity center of the electric vehicle, torsional moment of a part of centrifugal force is offset through gravity center shifting, and thus the rollover probability when the electric vehicle turns is greatly decreased.

The invention relates to a lifting mechanism suitable for tail end lifting operation of vertical equipment. The lifting mechanism is arranged on a platform structure of a tail sliding machine and a crawler chassis. The lifting mechanism comprises a horizontal pushing oil cylinder, a fixed pulley group, a movable pulley frame and a cable, wherein a front hinged point of the horizontal pushing oil cylinder and the fixed pulley group are both fixed on the crawler chassis, and a barrel of the horizontal pushing oil cylinder is installed on the platform structure; the movable pulley frame is arranged on the upper surface of the platform structure, is fixed with a rear hinged point of the horizontal pushing oil cylinder, and is internally provided with the movable pulley group; the cable goes out of the movable pulley group and rolls the upper side of the fixed pulley group to the side, close to the crawler chassis, of the fixed pulley group so as to be connected with a lifting point on the bottom or the lower part of the vertical equipment. Compared with an existing tail sliding crane, the lifting mechanism provided by the invention is simpler in structure, is free of the working procedures, such as stringing and arm connecting, that consume long time, and has higher assembly efficiency. In addition, the operation barycenter of the complete mechanism is low, and thus the tipping risk of the complete mechanism is low.

The invention relates to the technical field of rail vehicles, and provides a traction beam, a central traction device, a bogie and a rail vehicle. The traction beam comprises a center pin bush mounting cylinder, a traction beam body, two transverse stop mounting parts, two longitudinal stop parts and two vertical stop parts, the traction beam body comprises a first traction beam main body and a second traction beam main body, and the first traction beam main body and the second traction beam main body are correspondingly connected with the two opposite sides of the center pin bush mounting cylinder respectively; the two transverse stop mounting parts are correspondingly connected with the first traction beam main body and the second traction beam main body respectively, the two longitudinal stop parts are correspondingly installed on the two opposite sides of the center pin bush mounting cylinder, and the two vertical stop parts are correspondingly installed on the two opposite sidesof the center pin bush mounting cylinder. The traction beam is compact and reasonable in structure, the installation space is greatly reduced, the multifunctional installation connector requirement ofthe bogie and the space limiting area requirement of the bogie can be met at the same time, and the layout difficulty of the traction beam during bogie design is reduced.

The invention relates to the technical field of automobile accessories, in particular to a control device for inhibiting automobile side turning and a control method for inhibiting automobile side turning. The control device comprises a shock absorber, a piston rod and a piston, wherein the piston is connected onto the piston; the position is arranged in the shock absorber; an extension valve and a circulation valve are arranged on the piston; the lower part of the shock absorber is connected with an oil storage cylinder; the side part of the shock absorber is connected with a bypass passage; the bottom of the shock absorber is provided with a compensation valve and a compression valve; and a one-way valve, a one-way variable hydraulic pump and a two-position two-way reversing valve are arranged on the bypass passage. The lower part of the shock absorber is provided with the oil storage cylinder, and the side part of the shock absorber is provided with the bypass passage, so that an emergency intervention mechanism is formed; under the emergency condition that side turning possibly occurs, the one-way variable hydraulic pump arranged on the bypass passage actively gets involved to pump oil; the oil pressure balance is controlled; the automobile stability is maintained; and the vehicle side turning is effectively inhibited.

The invention discloses a bracket of a machine tool. The bracket comprises a supporting platform, a plurality of supporting legs and a plurality of auxiliary supporting legs, wherein the supporting legs are pivotally connected with the supporting platform; the auxiliary supporting legs are pivotally connected to the supporting legs for effectively increasing the contact area; and the supporting legs and the auxiliary supporting legs are all foldable. By using the bracket of the machine tool provided by the invention, the supporting effect is excellent, and simple and stable storage and expansion modes can be provided.

The invention discloses a novel electro-tricycle. The novel electro-tricycle comprises a tricycle body, a bearing device, wheels and axles, wherein the bearing device is used for supporting the tricycle body, the axles are connected with the wheels, and the axles are used for supporting the bearing device. The bearing device comprises bases, bearing frames, shock absorbers and a frame, wherein the axles are used for supporting the bases respectively, and the bearing frames and the shock absorbers are connected to the bases respectively, and are used for supporting the frame. When the novel electro-tricycle runs on a road with poor road conditions, and suddenly inclines towards the left or the right, or carries out a sharp turn in the travelling process, the shock absorber on the side which suddenly loses balance cannot rapidly bounce through damping of the shock absorber, and the risk of the sideward rollover of the novel electro-tricycle is greatly reduced.

The invention discloses airbag device for preventing a hull from rolling.The airbag device comprises the hull, a first anti-rollover part arranged at the first side of the hull and a second anti-rollover part arranged at the second side of the hull; the first anti-rollover part and the second part anti-rollover are both hinged to the hull, so that the first anti-rollover part and the second anti-rollover part can rotate around respective hinge points so as to define a first working state in which the first anti-rollover part and the second anti-rollover part are separated from the water surface and a second working state in which the first anti-rollover part and the second anti-rollover part are in contact with the water surface; when waves impact the first or second anti-rollover part, different parts of the first or second anti-rollover part can absorb different impact forces, so that the impact forces transmitted to a bow and a stern of the hull through the first anti-rollover part or the second anti-rollover part are different from each other. Steering of the hull can be automatically achieved through impact of waves, and then the risk degree of rollover of the hull can be reduced.

The invention provides a tire burst safety suspension system, a control method and a vehicle. The tire burst safety suspension system comprises an air spring, a high pressure gas generating device, atire pressure detecting device and a control unit, wherein the high pressure gas generating device is connected with an air chamber of the air spring; the tire pressure detecting device is connected with a tire and the high pressure gas generating device separately; and the control unit is connected with the tire pressure detecting device. According to the tire burst safety suspension system, thecontrol method and the vehicle, the air spring is internally provided with the high pressure gas generating device, the tire pressure measuring device is internally provided with a cylinder piston, whether tire burst occurs or not at the time is detected through displacement of the cylinder piston, the piston moves to the left to close a switch contact when the tire of a vehicle is burst so that aspark plug in the gas generating device in the air spring is powered to work, the high pressure gas generating device reacts quickly to produce high pressure gas, the tire burst side of the air spring is filled with the high pressure gas in the tire burst moment, thus the heights of a vehicle body on the two sides can be balanced as quickly as possible in a short time, and meanwhile, the stiffness of the air spring can be increased to reduce the risk of roll.

The invention discloses a battery-type log transportation truck, belongs to the technical field of carriage vehicles of special cargoes, and mainly relates to large transportation vehicles. The technical purpose is to solve the problems in the prior art that a log transportation truck is poor in stability and balance, and rollovers easily occur when the truck is driven while jolting since a mountainous road is poor in road condition. The battery-type log transportation truck comprises a traction vehicle and a front vehicle frame framework connected with the traction vehicle, the front vehicleframe framework comprises a front stand frame and a horizontal frame body, the front stand frame is arranged at the end of the horizontal frame body, the front stand frame and the horizontal frame body are arranged at a certain angle, and an L frame body is arranged on the horizontal frame body. The battery-type log transportation truck is simple in structure, low in dead weight and high in fastness, and the safety performance of the vehicles is improved.

The invention discloses an automobile rollover prevention control device and method based on slight sideslip. The device comprises first to fourth force sensors, a vehicle speed sensor, a CCD camera,a longitudinal acceleration sensor, a lateral acceleration sensor, a yaw rate sensor, first to fourth electromagnetic valve spray heads, a hydraulic pump, a water tank, a road surface adhesion estimator and a control unit. When an automobile runs in a curve on a high-adhesion road surface, the vertical force of four tires is detected by the force sensors, so that the lateral load transfer rate (LTR) is obtained. When the LTR value exceeds a threshold value, the liquid spraying time of a liquid spraying device is calculated according to the mapping relation of centrifugal force, lateral force and lateral acceleration, and the first to fourth electromagnetic valve spray heads are controlled to spray liquid to the four tires, so that the effects of reducing the road surface adhesion coefficient and generating small slippage are achieved. The device has the advantages of simple structure, clear principle and convenient use, effectively restrains the risk of rollover of the automobile on the road surface with a high adhesion coefficient, and improves the active safety of the automobile.

The invention relates to a portable puncture-proof pontoon for wading auxiliary rescue which includes a first component, a floating body, an inflatable component, and a second component. The first component includes a first housing, a floating body roll and a first motor. The inflatable component includes a support plate, a connecting cylinder, an air bag and a compressed gas tank. The floating body includes a bridge body and an inflatable buoy. The second component includes a second housing, a cable reel and a power control box. The portable puncture-proof pontoon for wading auxiliary rescue has simple and reasonable structure, ease to use, portable, safe and reliable and has high adaptability, etc., which effectively solves the problem of wading rescue equipment that is not suitable for special terrain during rescue.

The invention discloses a control method and device for preventing rollover of an automobile in a high-speed state, and belongs to the technical field of automobile driving safety. The control methodcomprises the following steps that the traveling speed of the automobile is detected, when the automobile traveling speed exceeds the high-speed driving speed V, the automobile steering angle is detected, and when the automobile steering angle exceeds the dangerous steering angle psi, the automobile is braked. When the automobile runs at a high speed, the steering angle of the automobile is detected, and if the automobile steering angle exceeds the the dangerous range, the automobile is braked, and the risk of rollover of the automobile in a high-speed state is reduced. The invention further provides a device for preventing rollover of the automobile in the high-speed state.