China Automotive Technology and Research Center Co. Ltd

Catarc Automotive Test Center (tianjin) Co., Ltd

Catarc New Energy Vehicle Test Center (tianjin) Co., Ltd.

Catarc Co., Ltd.

Zhixin Wu

Weidong Liu

Zhixin Liu

Kai Wang

Hong Chen

Minghao Xie

Weijie Ma

Yongqiang Wu

Zirong Yang

Yanyi Zhang

Ye Hao

Dong Hao

Hai Liu

Daokuan Jiao

Hong Zheng

Xin Zhao

Jicheng Ma

Guang Chen

Li Zhang

Ruidi Wang

Jianhai Wang

Cheng Lv

Yuankai Shao

Kaixiang Li

Zhenguo Li

Xiaoning Ren

Tao Li

Lingfeng Jia

Xianglei Zhu

Minghui Ma

Zhengqi Fan

Sai Zhang

Xianming Meng

Tong Song

Xingfeng Cao

Pengfei Ren

Xiaozhong Wu

Xinfu Zheng

Xiangyang Chen

Xuan Liu

Yongping Hou

Hengxu Lv

Hanming Wu

Liwei Qin

A method and a system for optimizing a lifetime of a fuel cell system based on adjustment and constraint of a thermoelectric ratio are provided. The method includes obtaining initial reference voltages of a plurality of single-machine fuel cell systems, and performing a durability test under a normal operating condition to obtain variation relationships of reference voltage over time; monitoring an operating voltage of each of the single-machine fuel cell systems in real-time under the normal operating condition to obtain a real-time monitored voltage and a real-time voltage deviation; calculating a performance expected attenuation profile of each of the single-machine fuel cell systems under the normal operating condition; obtaining current density distribution and actual available heat of each of the single-machine fuel cell systems, and calculating a health state boundary of each of the single-machine fuel cell systems in stable operation, so as to optimize operating modes of the systems.

Methods and systems for optimizing lifetime of fuel cell system based on adjustment and constraint of thermoelectric ratio

The present disclosure relates to a device and a method for valuating a heat dissipation capability of a test platform of hydrogen fuel cell system. A plurality of PTC heaters are connected in series or in parallel in a primary or secondary dispersion water loop to simulate the fuel cell system with different heating powers. A rotation speed of water pump and whether a PTC is operated are controlled, thereby implementing steady and dynamic tests, and a test for integrative operating condition, thereby avoiding a real machine test from controlling a plurality of parameters. Compared with the real machine of a fuel cell, it can better test the heat dissipation capability of the fuel cell system. During the operation, the device does not need to be supplied reaction gases to ensure the safety of the test. The primary and secondary dispersion tests can be performed separately or in parallel.

Device and method for evaluating heat capacity of test platform of hydrogen fuel cell system

A method for measuring deformation of dummy rib, includes: controlling a plurality of laser device groups to slide along corresponding curve segments respectively, and executing the following steps when the laser device groups slide to each sampling point, to obtain a degree of deformation at a position, corresponding to the sampling point, on to-be-measured dummy rib, the following steps including: controlling a laser range finder to emit a laser beam in a normal vector direction of a tangent corresponding to a position on a slide rail; determining whether the laser range finder receives corresponding reflected laser. This embodiment can have advantages of simple operation, low cost, and high accuracy.

Method for measuring deformation of dummy rib

A method, a system and a device for determining interlaminar shear strength of a composite laminated plate are provided. The method includes following steps: constructing a force-displacement curve of a composite laminated plate specimen based on strain data, corresponding to different displacements of the indenter, of the composite laminated plate specimen; determining a dominant strain based on plane strain nephograms; reading any defect in the plane strain nephogram corresponding to one displacement as a current defect, and determining a test force acting on the whole composite laminated plate specimen corresponding to the reference displacement of the indenter as a critical strain value; determining a product of the critical strain value and shear modulus under the dominant strain as the shear strength between adjacent single layers to be tested.

Method, system and device for determining interlaminar shear strength of composite laminated plate

The present disclosure provides msect-4 molecular sieves with OFF and ERI topologies, a preparation method therefor, and applications thereof. An eight-membered ring small pore molecular sieve used as a raw material is dispersed in an aqueous phase. Following that, caustic potash, an aluminum source, and an organic structure-directing agent (OSDA) are added. The pH value is then adjusted to be greater than 10, and a silicon source is introduced to attain the desired silicon-aluminum ratio, followed by stirring reaction, aging, crystallization, filtration, washing, ammonia exchange reaction, drying, and calcination. The msect-4 molecular sieves with OFF and ERI topologies, the preparation method therefor, and applications exhibit excellent hydrothermal stability, a plurality of adsorption sites exposed by a regular bone-like structure, and a large specific surface area. Consequently, this molecular sieves find applicability across various technical fields including selective catalytic reduction, passive adsorption, and catalytic cracking, and has broad application prospects.

MSECT-4 molecular sieves with off and ERI topologies, preparation method therefor, and applications thereof

A method for building a vehicle crash dummy skull model, includes: building an original skull model according to computed tomography scan data of a human skull; inserting a new first node according to a distance between adjacent first nodes on a hole boundary contour line, to obtain a target contour line; inserting a plurality of second nodes into holes according to the target contour line to obtain an intermediate boundary contour line; forming triangular nets according to the nodes on the target contour line and the intermediate boundary contour line; and with the intermediate boundary contour line as a new target contour line, returning to the operation of inserting a plurality of second nodes until the number of nodes of a final target contour line is less than or equal to a preset value. This embodiment is conducive to building of a skull model with a smooth cranial surface.

Method for building vehicle crash dummy skull model

The present invention discloses a method of filling simulated muscles for a limb of an automobile crash test dummy, the simulated muscles are molded with foaming in the inner cavity of the mold; the method comprises: obtaining a filling volume of the inner cavity of the mold by using a liquid casting method, preparing an adhesive liquid film layer, preparing a filler and conducting demolding detection on the limb. Wherein step 3 is to inject the mixed filler into the inner cavity of the mold so as to be foamed in the mold to form foamed sponge, and stand until the foamed sponge is foamed to the exhaust port and does not overflow any more.

Method of filling simulated muscles for limb of crash test dummy for automobile

The present invention relates to the field of passive safety testing of vehicles, in particular to a construction method for an impact response performance limit value of a crash dummy and an electronic device. The method includes: determining, according to response curves of the crash dummy under different impact test conditions, a standard response curve and alignment starting time and ending time of each response curve; aligning, according to differences between other response curves except the standard response curve and the standard response curve, other response curves except the standard response curve with the standard response curve; and determining, according to all the aligned response curves, an impact response performance limit value function of the crash dummy, where the differences include cumulative differences or cumulative variances. The method can truly, accurately and effectively construct a performance limit value of a dummy part under various impact tests.

Construction method for impact response performance limit value of crash dummy and electronic device

The present invention relates to the field of vehicle safety crash test dummies, and discloses an arm for a crash dummy, a control method, a device and a storage medium. The arm comprises: a first motor (), a coupling (), a capstan shaft (), a first bevel gear (), a second motor (), a first capstan (), a capstan bearing (), an elbow joint base (), a forearm (), a first elbow joint bearing (), drive lines (), a second pulley (), an elbow joint shaft (), a first fixed sleeve (), a second fixed sleeve (), a second elbow joint bearing (), an elbow joint connection block (), a power source connection block (), a second bevel gear (), two sets of pulleys, a second capstan () and a power source bracket (). The arm provided in this embodiment has an active function.

Arm for crash dummy, control method, device and storage medium

A method for measuring the motion response of a dummy in a crash test comprises: acquiring images of a measurement mark by a camera during the crash test, wherein the measurement mark is fixed on a part to be measured of the dummy, and the dummy is set in association with a preset platform; determining first coordinate positions of the measurement mark in the images; determining corresponding second coordinate positions of the first coordinate positions in a static coordinate system according to a preset conversion relationship, wherein the X-axis of the static coordinate system is parallel to the motion direction of the preset platform, the Y-axis of the static coordinate system is perpendicular to the motion direction of the preset platform; and determining a motion response trajectory of the part to be measured according to an initial position of the part to be measured and the second coordinate positions.

Method for measuring motion response of dummy in crash test, device and storage medium

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Tianjin, China

Zhixin Wu