Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 27. Отображено 27.
22-08-2023 дата публикации

Redundant electro-hydraulic composite steering system and fault-tolerant control method thereof

Номер: CN116620387A
Автор: CHEN XIANG, HOU KAILONG, ZHAO WANZHONG, WANG CHUNYAN
Принадлежит:

The invention discloses a redundant electro-hydraulic composite steering system and a fault-tolerant control method thereof. The redundant electro-hydraulic composite steering system comprises a mechanical steering module, a hydraulic power assisting module, an electric power assisting module and a control module. The control module comprises a signal acquisition module, a calculation module and a fault-tolerant control module; the signal acquisition module is used for acquiring sensor signals required by control; the calculation module comprises a motor parameter estimation module, a driver ideal assistance calculation module and a driver ideal assistance distribution module and is used for estimating motor parameters to obtain driver ideal assistance and a driver ideal assistance distribution ratio; and the fault-tolerant control module is used for judging the fault conditions of the power-assisted motor and the double-winding pump motor according to the signals sent by the calculation ...

Подробнее
Номер записи: 1
04-06-2020 дата публикации

DUAL-MOTOR WIRE-CONTROLLED COMPOSITE STEERING SYSTEM AND CONTROL METHOD THEREFOR

Номер: WO2020108260A1
Автор: ZHOU, Xiaochuan, LUAN, Zhongkai, ZHAO, Wanzhong
Принадлежит:

A dual-motor wire-controlled composite steering system and a control method therefor, wherein the dual-motor wire-controlled composite steering system comprises a steering wheel (1), a steering column assembly, a road sensing assembly, a dual-motor steering actuator, and a steering control unit. Steering control of the system is completed by means of an adaptive control method, and the present system may achieve the integration of steering performance such as relatively large steering torques, lower energy consumption, faster response speeds and so on. The present control method automatically adjusts steering control parameters according to an actual driving situation, which may better counter uncertainty in a driving environment and ensure steering accuracy and vehicle safety.

Подробнее
Номер записи: 2
18-06-2020 дата публикации

MULTIDISCIPLINARY INTEGRATED MODELING AND OPTIMIZATION METHOD FOR AUTOMOTIVE ELECTRO-HYDRAULIC COMPOSITE STEERING SYSTEM

Номер: WO2020119341A1
Автор: ZHOU, Xiaochuan, LUAN, Zhongkai, ZHAO, Wanzhong
Принадлежит:

A multidisciplinary integrated modeling and optimization method for an automotive electro-hydraulic composite steering system. The method comprises: establishing, on the basis of AMEsim software, a multidisciplinary simulation model of an automotive electro-hydraulic composite steering system; establishing, on the basis of matlab software, a dynamic optimization model of the automotive electro-hydraulic composite steering system; and establishing, on the basis of isight software, a multidisciplinary integrated optimization model of the automotive electro-hydraulic composite steering system. The established multidisciplinary integrated model is employed to optimize the automotive electro-hydraulic composite steering system, integrates advantages of multiple software platforms, facilitates the simplification and efficiency of parameter optimization design of the electro-hydraulic composite steering system, and improves the accuracy and efficiency of development and design.

Подробнее
Номер записи: 3
03-09-2020 дата публикации

DUAL-ELECTRIC-MOTOR DUAL-POWER SUPPLY STEER-BY-WIRE SYSTEM AND FAULT-TOLERANT CONTROL METHOD THEREFOR

Номер: WO2020173122A1
Автор: ZHAO, Wanzhong, ZHOU, Xiaochuan, WANG, Anxu, LUAN, Zhongkai, WANG, Chunyan
Принадлежит:

Disclosed are a dual-electric motor dual-power supply steer-by-wire system and a fault-tolerant control method therefor. The system comprises: a steering wheel (1), a steering column (3), a road inductance simulation device (5), a dual-electric motor steering module, a main controller (6), a power supply fault-tolerant device (20), a steering tie rod (13) and a steering wheel unit (16), wherein the power supply fault-tolerant device (20) comprises a power supply controller unit (7), a first power supply unit (8) and a second power supply unit (19). The power supply controller unit (7) controls a first relay and a second relay to perform power supply mode selection, and outputs a first electric motor control signal and a second electric motor control signal. The fault-tolerant control method has a plurality of power supply modes, and can rapidly switch according to power supply and electric motor failure conditions, so as to ensure that under the condition of failure of a single power supply ...

Подробнее
Номер записи: 4
25-06-2020 дата публикации

ACTIVE FAULT TOLERANCE AND FAULT MITIGATION SYSTEM BASED ON STEER-BY-WIRE DUAL MOTORS AND CONTROL METHOD THEREFOR

Номер: WO2020125249A1
Автор: ZHAO, Wanzhong, WANG, An, ZHOU, Xiaochuan, WANG, Chunyan, CHEN, Lijuan
Принадлежит:

An active fault tolerance and fault mitigation system based on steer-by-wire dual motors and a mode switching control method therefor. The system comprises an acquisition unit, a steering wheel assembly, an ECU control module, a front wheel steering assembly, and a fault tolerance controller (18) that are sequentially connected; the acquisition unit transmits an acquired vehicle signal to the ECU control module, and then a corresponding compensation strategy is selected by means of a fault tolerance control strategy unit, a yaw rate calculation unit, a stability control unit, and a dual-motor compensation unit to act on a rack and pinion mechanism (15). The system and method can perform switching in an active fault tolerance and fault mitigation mode according to different fault conditions of fault motors (10, 13) to achieve optimal control of the real-time performance of a vehicle, thereby ensuring the driving performance and higher performance of the vehicle in a field fault condition ...

Подробнее
Номер записи: 5
27-07-2016 дата публикации

Car initiative collision avoidance system

Номер: CN0205396080U
Автор: XU ZHIJIANG, ZHAO WANZHONG, WANG CHUNYAN, CUI TAOWEN
Принадлежит:

... 本实用新型公开了种汽车主动避撞系统，包括前视雷达、摄像头、车速传感器、横摆角速度传感器、质心侧偏角传感器、信号处理模块、电子控制电源ECU、油门控制器、转向控制器、制动控制器。汽车在行驶过程中，电子控制单元实时采集各个传感器经信号处理模块传来的信号，并实时判断当前时刻汽车所处的路况与车况，如若此时可能发生危险情况，则ECU通过执行内部预先设定的轨迹规划程序产生条连续无碰的可执行轨迹，并将相关信号输出到油门控制器、转向控制器与制动控制器进行相应操作，以避免危险情况的发生。本实用新型能够在紧急情况下辅助驾驶员对汽车进行操作，能够提高行车主动安全性能。 ...

Подробнее
Номер записи: 6
29-08-2023 дата публикации

Intelligent vehicle 3D target detection method suitable for uneven road scene

Номер: CN116665166A
Автор: WANG YUANLONG, JIANG HENGTAO, CHEN GUANYING, ZHAO WANZHONG, WANG CHUNYAN
Принадлежит:

The invention discloses an intelligent vehicle 3D target detection method suitable for an uneven road scene, and the method comprises the steps: obtaining front-view image data and vehicle acceleration information at the same time through a vehicle-mounted camera sensor and a vehicle-mounted MEMS sensor, carrying out the feature extraction of the obtained front-view image data, and obtaining an image feature map F; meanwhile, the real-time roll angle and the pitch angle of the vehicle are calculated through obtained vehicle acceleration information, then a rotation matrix A is calculated based on the roll angle and the pitch angle, a transformation matrix M is obtained through combination of the rotation matrix and internal and external parameter matrixes of the camera, pixel coordinate transformation is conducted on the image feature map F through the transformation matrix M, and the image feature map F is obtained. And performing projection from the 2D features to the 3D features based ...

Подробнее
Номер записи: 7
02-07-2020 дата публикации

AUTOMOBILE ELECTRO-HYDRAULIC INTELLIGENT STEERING SYSTEM AND MULTI-OBJECTIVE OPTIMIZATION METHOD THEREFOR

Номер: WO2020134621A1
Автор: ZHOU, Xiaochuan, ZHAO, Wanzhong, WANG, Anxu, LUAN, Zhongkai, WANG, Chunyan
Принадлежит:

An automobile electro-hydraulic intelligent steering system and a multi-objective optimization method therefor, the system comprising a mechanical steering module, an electric power assist module, an electro-hydraulic power assist module, and a control module. The system may intelligently select the proportions by which the electric power assist module and the electro-hydraulic power assist module participate in steering power assist. For the complex coupling relationship of electro-mechanical fluid in the system, a multi-objective optimization method is proposed. By means of parameter coupling analysis, key design variables that have a relatively large impact on system performance are selected, and a shared niche technology-based multi-objective particle swarm algorithm is used for optimization to obtain optimal design parameters, achieve the optimal performance of steering road feel, steering energy consumption and steering assistance, and improve the overall performance of the steering ...

Подробнее
Номер записи: 8
08-09-2017 дата публикации

Automobile rear bumper of functional gradient negative Poisson ratio structure and optimization method

Номер: CN0107139873A
Автор: WANG CHUNYAN, WANG WEIWEI, ZHAO WANZHONG
Принадлежит:

... 本发明公开了种功能梯度负泊松比结构的汽车后保险杠及优化方法，汽车后保险杠包含保险杠前盖、保险杠本体和保险杠后盖；保险杠本体采用负泊松比材料制成，用于在汽车发生碰撞时进行吸能；保险杠前盖、保险杠后盖用于相互配合组成壳体将所述保险杠本体固定在其中后和所述汽车的车身相连。本发明还公开了种该汽车后保险杠的优化方法，通过该方法,在考虑了噪声因素干扰的条件下，根据设计目标和要求，利用田口稳健性优化方法对保险杠前盖厚度、保险杠后盖厚度及负泊松比结构的厚度梯度进行设计，有效的提升结构的吸能能力，保证了汽车内乘员的安全，并对得到了轻量化的效果。 ...

Подробнее
Номер записи: 9
23-04-2020 дата публикации

COMPOSITE POWER SUPPLY ENERGY DISTRIBUTION METHOD OF FUEL CELL VEHICLE AND DEVICE

Номер: WO2020078221A1
Автор: ZHOU, Jianhao, DING, Yi, HAI, Bin, ZHOU, Zhiguang, ZHAO, Wanzhong, WANG, Rong
Принадлежит:

Provided are an energy distribution method for composite power supply of fuel cell vehicle and a device, belonging to the field of electric vehicle, wherein the device comprises: a first DC conversion circuit (110), a second DC conversion circuit (120), a first determination module (130), a second determination module (140), a control module (150) and an energy distribution module (160), wherein the control module (150) determines a reference demand current signal according to the change rate of a first disturbance parameter; the energy distribution module (160) transmits the reference demand current signal to the first determination module (130) and the second determination module (140) according to the energy distribution coefficient; the first determination module (130) determines a first duty cycle signal according to the reference demand current signal and the change rate of a second disturbance parameter; the second determination module (140) determines a second duty cycle signal ...

Подробнее
Номер записи: 10
02-07-2020 дата публикации

MAGNETO-RHEOLOGICAL FLUID-BASED RECIRCULATING BALL ELECTRO-HYDRAULIC STEERING SYSTEM AND OPTIMIZATION METHOD THEREFOR

Номер: WO2020134622A1
Автор: ZHAO, Wanzhong, ZHOU, Xiaochuan, LUAN, Zhongkai, WANG, Chunyan, ZHANG, Ziyu, WANG, Yisong, WANG, Anxu
Принадлежит:

A magneto-rheological fluid-based recirculating ball electro-hydraulic steering system and an optimization method therefor. Said system comprises: a mechanical transmission module, an electric power assist module, a magneto-rheological fluid power assist module, and a power assist control module (ECU); magneto-rheological fluid materials (25) are provided in magneto-rheological fluid cavities (24) in a recirculating ball steering gear (7); excitation coils (8) are provided outside a recirculating ball steering gear housing (18); and the direction of the magnetic field generated by energizing the excitation coils (8) is perpendicular to the direction of the electric field formed by energizing electrode plates (12). By establishing an electro-hydraulic steering system optimization model and performing optimization using a niche multi-target particle swarm optimization algorithm, the structure of said system is simplified and the controllability of steering feel is improved.

Подробнее
Номер записи: 11
16-07-2020 дата публикации

AUTONOMOUS VEHICLE DECISION-MAKING SYSTEM UNDER COMPLEX OPERATING CONDITIONS, AND TRAJECTORY PLANNING METHOD THEREFOR

Номер: WO2020143288A1
Автор: ZHAO, Wanzhong, XU, Can, WANG, Chunyan, CHEN, Qingyun
Принадлежит:

An autonomous vehicle decision-making system under complex operating conditions, and a trajectory planning method therefor. The system mainly comprises an environment sensing unit, a real-time decision-making unit, a trajectory planning unit and a control unit. During a vehicle travelling process, the environment sensing unit transmits sensed motion information of surrounding vehicles to the real-time decision-making unit used to make a decision regarding the best driving behavior of an autonomous vehicle in the current state. After the decision regarding the driving behavior is made, the trajectory planning unit then carries out double planning on a path and the speed of the vehicle by means of a set trajectory planning method to obtain the optimal trajectory in the current state, and inputs, by means of an ECU, a corresponding control signal to an execution mechanism so as to ensure safe and reliable travel of the vehicle. A safe collision-free trajectory is planned for a vehicle in real ...

Подробнее
Номер записи: 12
08-08-2023 дата публикации

Sliding plate chassis brake-by-wire system and method based on electromagnetic adjustment

Номер: CN116557450A
Автор: CHEN TAIRONG, ZHANG RUIJUN, ZHAO WANZHONG, WANG CHUNYAN, LUAN ZHONGKAI, ZHOU XIAOCHUAN, LIANG WEIHE, ZHANG ZIYU
Принадлежит:

The invention discloses a sliding plate chassis brake-by-wire system and method based on electromagnetic adjustment. The sliding plate chassis brake-by-wire system comprises an axle, a hub motor, a brake disc, a bearing, a first support, a friction block, a second support, a hinge point, a metal rod, a hub, a bolt, an electromagnetic adjusting device and an electric control unit. The electromagnetic adjusting device comprises a piston cylinder, a piston, a first electromagnetic coil, a first magnetostriction block, a second electromagnetic coil, a return spring and a second magnetostriction block; the electric control unit is connected with the first magnetostriction block and the second electromagnetic coil. All hydraulic structures are omitted, the system structure can be greatly simplified, and the design requirement of a sliding plate chassis can be met.

Подробнее
Номер записи: 13
13-07-2016 дата публикации

Drive -by -wire a steering system with fault -tolerant function of sensor signal

Номер: CN0205381303U
Автор: ZHANG HAN, ZHAO WANZHONG, WANG CHUNYAN
Принадлежит:

... 本实用新型公开了种带有信号容错功能的线控转向系统，属于汽车转向控制领域。在行驶过程中，通过采集前轮转角、横摆角速度、侧向加速度以及转向电机电流联合探测诊断传感器故障情况，如果传感器发生故障，则通过其他传感器信号估计补偿得到，控制汽车转向。通过实时探测诊断传感器故障情况，在发生故障时能够在线进行信号重构，补偿故障信号，作为信号输入，对驾驶员的转向指令做出准确的响应，对转向电机进行鲁棒控制，提高线控转向系统的可靠性和汽车行驶时的稳定性和安全性。 ...

Подробнее
Номер записи: 14
29-08-2023 дата публикации

Intelligent vehicle lane changing decision-making system and method based on BEV visual angle and digital twinning

Номер: CN116653953A
Автор: LYU YUANFEI, WANG CHUNYAN, ZHOU, XIAOCHUAN, ZHAO WANZHONG, ZHONG YIXIN, QU MENGYUE
Принадлежит:

The invention discloses an intelligent vehicle lane changing decision-making system and method based on a BEV visual angle and digital twinning. The system comprises an intelligent vehicle end and an edge cloud end. The intelligent vehicle end comprises an intelligent vehicle sensing module and an intelligent vehicle motion control module; the edge cloud comprises a BEV module, a lane changing decision module and a verification module; the BEV visual angle in the driving process of the intelligent vehicle is obtained through the BEV sensing technology, under the visual angle, the position of the intelligent vehicle, the number of surrounding vehicles and the relative distance factor are comprehensively considered, the most appropriate lane changing direction of the intelligent vehicle is obtained, and a lane changing track set needed by the intelligent vehicle for driving in the lane changing direction is planned through a lane changing track planning algorithm; and parallel testing is ...

Подробнее
Номер записи: 15
09-07-2020 дата публикации

MAGNETO-RHEOLOGICAL FLUID-BASED RACK AND PINION ELECTRO-HYDRAULIC STEERING SYSTEM AND OPTIMIZATION METHOD

Номер: WO2020140603A1
Автор: ZHOU, Xiaochuan, ZHAO, Wanzhong, WANG, Yisong, ZHANG, Ziyu, WANG, Anxu, WANG, Chunyan
Принадлежит:

A magneto-rheological fluid-based rack and pinion electro-hydraulic steering system and an optimization method. Said system comprises: a mechanical transmission module, a magneto-rheological fluid power assist module (11), an electric power assist module, and a power assist control module (14). The optimization method comprises the following steps: 1) establishing a rack and pinion electric-hydraulic steering system model, a whole-vehicle model, and a tire model; 2) selecting system optimization targets, and deducting evaluation formulas; 3) selecting parameters, having a large influence on steering performance, as optimization variables; 4) under constraint conditions of value ranges of steering sensitivity and the optimization variables, establishing a system multi-target optimization model; and 5) using a reference point-based multi-target evolution algorithm to perform optimization. Two power-assist modes, i.e. an electric motor (10) and magneto-rheological fluid are used, so that the ...

Подробнее
Номер записи: 16
11-08-2023 дата публикации

Double-winding distributed steer-by-wire system and fault-tolerant control method thereof

Номер: CN116573037A
Автор: WANG RUI, ZHAO WANZHONG, CHU YUKAI, WU JINWEI, ZHOU XIAOCHUAN, LUAN ZHONGKAI
Принадлежит:

The invention discloses a double-winding distributed steer-by-wire system and a fault-tolerant control method thereof. The system comprises a steering wheel assembly, a distributed steering controller and a distributed steering execution assembly. The steering wheel assembly is arranged in the vehicle and used for receiving operation information of a driver and providing road feeling feedback. The distributed steering controller is arranged in the center of a chassis or integrated into a vehicle control unit, and is connected with the distributed steering execution assembly through a vehicle-mounted bus and a steering wheel assembly; the distributed steering execution assemblies are arranged at the positions of four wheels and used for executing control instructions of the distributed steering controller. According to the invention, fault-tolerant control of the double-winding distributed steer-by-wire system under various fault conditions can be realized; compared with a traditional drive-by-wire ...

Подробнее
Номер записи: 17
25-07-2023 дата публикации

Multi-source coupling sliding plate chassis system and multi-level fault diagnosis method thereof

Номер: CN116476761A
Автор: XU KUNHAO, ZHAO WANZHONG, WANG ZIHAO, ZHANG BO, SUN HAOYU, WANG SEN
Принадлежит:

The invention discloses a multi-source coupling sliding plate chassis system and a multi-level fault diagnosis method thereof. The system comprises a drive-by-wire subsystem, an electro-hydraulic composite steering-by-wire subsystem, an electric composite brake-by-wire subsystem, a multi-level global state observation module, a multi-level fault diagnosis module, an architecture layer fault degree identification module and a fault alarm module. According to the method, multi-level fault diagnosis is carried out on the sliding plate chassis system, the problems that subsystems interfere with one another and diagnosis is inaccurate when cross-subsystem faults happen to the chassis are solved, fault diagnosis of all levels of the chassis is mutually independent and coordinated together, and the overall fault diagnosis efficiency of the chassis is remarkably improved.

Подробнее
Номер записи: 18
02-06-2023 дата публикации

Automatic driving method for reconstructing real scene into virtual scene

Номер: CN116203953A
Автор: WANG YUANLONG, CHEN GUANYING, JIANG HENGTAO, ZHAO WANZHONG, WANG CHUNYAN, ZHOU GUAN
Принадлежит:

The invention discloses an automatic driving method for reconstructing a real scene into a virtual scene, an automatic driving algorithm model is obtained through simulation learning training, and the method comprises a sensing module, a decision module and a control module; a sensor group is adopted to scan the surrounding environment of the automobile to obtain surrounding image information and 3D point cloud information; performing three-dimensional reconstruction on the surrounding image information and the 3D point cloud information, and establishing a three-dimensional mathematical model of the surrounding environment of the automobile; rendering the obtained three-dimensional mathematical model in real time to obtain a rendered model consistent with a model structure in the virtual simulation platform; inputting the rendering model into a virtual simulation platform, simulating driving of an automobile on the virtual simulation platform, sensing a virtual environment rendered in ...

Подробнее
Номер записи: 19
08-09-2017 дата публикации

Steering-by-wire system and control method based on kalman filter capable of divergence inhibition

Номер: CN0107140012A
Автор: ZHAO WANZHONG, FAN MILI, ZHANG HAN, LI YAN, GAO QI, WANG YUNQI, ZOU SONGCHUN, ZHANG YUQI
Принадлежит:

... 本发明公开了种基于可抑制发散的卡尔曼滤波器的线控转向系统及控制方法，该系统包括方向盘及其连接机构、方向盘转角传感器、方向盘转矩传感器、路感电机、路感电机电流传感器、转向电机、转向电机电流传感器、车速传感器、前轮转角传感器、齿轮齿条转向器、位置传感器、滤波估计模块、安全判断模块、控制信号叠加模块以及转向电子控制单元。本发明运用可抑制发散的卡尔曼滤波器对汽车运动的姿态进行滤波预测估计，具有发散抑制功能的卡尔曼滤波器从电子传感器获得信号，用以估计汽车的实时状态。本发明所公开的系统的转向控制器能够在保证转向稳定的前提下，使得系统具有良好的干扰抑制性能，从而能够获得良好的汽车操纵稳定性。 ...

Подробнее
Номер записи: 20
14-04-2023 дата публикации

Steering wheel tactile assist torque calculation method and device based on sliding mode control

Номер: CN115963736A
Автор: ZHANG HAN, LEE WON-HO, QUAN WEIMEI, JIANG WENTAO, ZHAO WANZHONG
Принадлежит:

The invention provides a sliding mode control-based steering wheel tactile assist torque calculation method and device. The method comprises the following steps of 1, establishing a dynamical model of an arm, a steering wheel and a steering column; step 2, defining sliding mode input; 3, designing a sliding mode function; 4, establishing a driver preview model; and step 5, calculating to obtain the tactile auxiliary torque. According to the method, the appropriate auxiliary torque can be calculated in real time through the sliding mode algorithm based on the output error of the driver steering wheel and the output error of the expert driver model, when the output error of the two is too large or too small, the driver can be guided to output more appropriate operation by applying the auxiliary torque, and the safety and stability of vehicle driving are improved.

Подробнее
Номер записи: 21
14-07-2023 дата публикации

Drive-by-wire chassis subsystem coordination control strategy based on distributed automobile

Номер: CN116424353A
Автор: CHEN XIANG, JIANG RUI, ZHAO WANZHONG, WANG CHUNYAN, YANG SHAOCHUAN
Принадлежит:

The invention discloses a drive-by-wire chassis subsystem coordination control strategy based on a distributed automobile, which comprises the following steps of: firstly, judging the driving working condition of the automobile by utilizing a self-adaptive steering wheel angle threshold value, and when the automobile is in a straight driving state, controlling the strategy to be an ASS independent control mode; when the vehicle turns, two intervals representing the stable state of the vehicle are obtained based on the bifurcation theory, state judgment is carried out in combination with a critical front wheel steering angle value, and a control strategy is adjusted in real time according to a judgment result: if the vehicle is in the stable interval, the control strategy is an ASS + AFS composite control mode so as to improve stability and smoothness; and if the vehicle is in the unstable interval, the control strategy is switched to an ASS + DYC composite control mode. The influence of ...

Подробнее
Номер записи: 22
28-07-2023 дата публикации

Steering consistency corner distribution control method suitable for sliding plate chassis

Номер: CN116495054A
Автор: CHEN TAIRONG, XU JIAYI, ZHAO WANZHONG, WANG CHUNYAN, ZHOU XIAOCHUAN, LUAN ZHONGKAI
Принадлежит:

The invention discloses a steering consistency corner distribution control method suitable for a sliding plate chassis. The steering consistency corner distribution control method comprises the steps that the yaw velocity, the slip angle and steering instantaneous center coordinates based on a vehicle coordinate system of a vehicle are estimated; establishing an ideal vehicle two-degree-of-freedom model according to the vehicle sliding plate chassis kinematics equation; constructing an ideal value correction controller, and performing optimization design compensation on the ideal value; according to the vehicle yaw velocity, the side slip angle and the steering instantaneous center coordinates based on the vehicle coordinate system, calculating a target deviation value with the ideal state; establishing a four-wheel independent steering system model; calculating a lateral motion virtual control force and a yaw motion virtual control moment; and calculating the control turning angle of each ...

Подробнее
Номер записи: 23
14-07-2023 дата публикации

Multi-source coupling sliding plate chassis system and multi-level fault-tolerant control method thereof

Номер: CN116424359A
Автор: WANG ZIHAO, XU KUNHAO, ZHAO WANZHONG, WANG CHUNYAN, ZHOU XIAOCHUAN, LUAN ZHONGKAI, ZHANG SENHAO
Принадлежит:

The invention discloses a multi-source coupling sliding plate chassis system and a multi-level fault-tolerant control method thereof. The system comprises a drive-by-wire subsystem, an electro-hydraulic composite steering-by-wire subsystem, an electric composite brake-by-wire subsystem, a multi-level fault observation unit and a multi-level fault-tolerant control unit. All-wheel driving, steering, braking and other systems are integrated, independent development of an upper vehicle body and a lower chassis can be achieved, the convenience of vehicle manufacturing is greatly improved, meanwhile, a multi-level integrated and coordinated fault-tolerant control method is provided, the safety of the whole vehicle is improved, and the whole vehicle can meet the ASIL-D level multi-safety requirement.

Подробнее
Номер записи: 24
30-05-2023 дата публикации

Intelligent automobile track planning method considering dynamic pedestrian interaction

Номер: CN116176620A
Автор: ZHOU XIAOCHUAN, ZHAO WANZHONG, WANG CHUNYAN, WANG ANXU, YE YULIN, LI WEI
Принадлежит:

The invention discloses an intelligent automobile track planning method considering dynamic pedestrian interaction. The method comprises the steps that 1, related road and pedestrian information is collected in real time; step 2, establishing a road entrance and exit potential function and a road boundary potential function; step 3, considering a pedestrian danger level and a maneuvering level, and establishing a pedestrian movement situation function based on a fuzzy rule; and 4, comprehensively superposing the road entrance and exit potential function, the road boundary potential function and the pedestrian movement situation function to obtain a resultant potential field considering the pedestrian trajectory, and planning the vehicle trajectory according to a gradient descent method based on the resultant potential field. According to the method, the road change trend and the road boundary range are considered, the road risk field is detailedly described by establishing the road entrance ...

Подробнее
Номер записи: 25
04-04-2023 дата публикации

Rigidity self-adaptive composite material structure under different stress rates

Номер: CN115899134A
Автор: WANG YUANLONG, ZHANG CHENLONG, JIN QI, CHEN XIONGJIE, LI CHAOLIANG, ZHAO WANZHONG, WANG CHUNYAN
Принадлежит:

The invention discloses a rigidity self-adaptive composite material structure under different stress rates. The rigidity self-adaptive composite material structure comprises two side plates and m elastic units arrayed between the two side plates, the elastic unit comprises two composite beams; the composite beam comprises a first elastic beam and a second elastic beam of which the side walls are mutually glued, and the strain rate dependence of the first elastic beam is higher than that of the second elastic beam. By combining the performance characteristics of the composite beam and through array arrangement, the elastic units are free to bend without mutual contact at a low stress rate, and the structural rigidity is low, so that energy in collision is absorbed to play a protection role. And the two composite beams of the elastic unit can be in bending contact at a high stress rate, so that the structural rigidity is locally or integrally enhanced, a supporting effect is achieved, and ...

Подробнее
Номер записи: 26
16-05-2023 дата публикации

Pedestrian trajectory prediction system and method considering interaction

Номер: CN116129637A
Автор: ZHOU XIAOCHUAN, ZHAO WANZHONG, WANG CHUNYAN, WANG ANXU, YE YULIN, LI WEI
Принадлежит:

The invention discloses a pedestrian trajectory prediction system and method considering interaction, and the system comprises a sensor unit which is used for obtaining the position coordinate information of a vehicle and a pedestrian, and storing the information in a vehicle historical trajectory database and a pedestrian historical trajectory database; the vehicle-mounted calculation unit comprises an encoder, an attention module and a decoder which are connected in sequence; the encoder is used for calculating and storing historical tracks of pedestrians and vehicles; the attention module comprises a time attention module and a space attention module, the time attention module is used for calculating historical time features, and the space attention module is used for calculating global space features; and the decoder is used for calculating a pedestrian prediction track considering the interaction relationship. According to the method, the pedestrian trajectory prediction frame based ...

Подробнее
Номер записи: 27