Power-off storage testing device and method for automobile event data recording system

A technology of event data and recording system, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc., can solve problems such as large synchronization deviation, power backflow, and influence on test results, and achieve high synchronization and no power backflow. Effect

Active Publication Date: 2021-04-27
CATARC AUTOMOTIVE TEST CENT TIANJIN CO LTD +1
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Problems solved by technology

[0003]Currently adopted test method for power-off storage of automobile event data recording system is to output signal from impact test bench to control power off and cut off power supply to EDR controller to realize power-off Electricity storage method, the power-off implementation of this method depends entirely on the shutdown of the power supply, and the synchronization deviation between the application of the shock waveform and the moment of cutting off the power supply to the EDR controller is relatively large, and the shutdown of the power supply will cause the power supply itself to absorb power and cause the power to flow back, affecting test results

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  • Power-off storage testing device and method for automobile event data recording system

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Embodiment Construction

[0015] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0016] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0017] Automotive event data recording system power failure storage test device, such as figure 1 As shown, it includes a power supply 1, a high-speed electronic switch 2 and an impact test bench 3. The positive pole of the power supply 1 is connected to the input terminal wire of the high-speed electronic switch 2, and the output terminal of the high-speed electronic switch 2 is connected to the power supply of the EDR controller 4 to be tested. The positive wire is connected, and the negative pole of the power supply 1 is connected with the power negative wire of the EDR controller 4 to be tested; the signal output terminal of the impact test bench 3 is connected with the signal input ...

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Abstract

The invention provides an automobile event data recording system outage storage testing device. The device comprises a power supply, a high-speed electronic switch and an impact test bench, wherein a positive electrode of the power supply is connected with an input end of the high-speed electronic switch through a wire, and an output end of the high-speed electronic switch is connected with a positive electrode of the power supply of an EDR controller to be tested through a wire; a negative electrode of the power supply is connected with a negative electrode of the power supply of the EDR controller to be tested through a wire; a signal output end of the impact test bench is connected with a signal input end of the high-speed electronic switch through a signal line; and the table top of the impact test table is used for mounting a to-be-tested EDR controller. The device is advantaged in that power supply to the EDR controller is cut off through the high-speed electronic switch, synchronism is high, and power failure is thorough.

Description

technical field [0001] The invention belongs to the technical field of testing of an automobile event data recording system, and in particular relates to a power-off storage testing device and method for an automobile event data recording system (EDR). Background technique [0002] With the continuous development of the automobile industry, the application of automobile event data recording system on vehicles is increasing. In addition, the mandatory standard "Automobile Event Data Recording System" will be released soon to test the power-off storage capacity of the automobile event data recording system. more and more important. The vehicle incident data recording system is composed of one or more vehicle-mounted electronic modules, and has the function of monitoring, collecting and recording the data of the vehicle and occupant protection system before, during and after the collision event. In the process of a collision accident, if the power supply circuit in the vehicle...

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Application Information

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IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 马汶锴孙枝鹏曹建骁杜天强毕腾飞赵硕宋朋宇张世琦董鑫泽郑英东张广秀吴含冰
Owner CATARC AUTOMOTIVE TEST CENT TIANJIN CO LTD
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