Measuring rack for vibration intensity of range extender and measuring method of measuring rack
A technology of vibration intensity and measurement method, applied in the field of range extender test
Inactive Publication Date: 2021-09-14
HARBIN DONGAN AUTO ENGINE
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Problems solved by technology
[0003] In range-extended vehicles, the range extender is the main vibration source, and there is currently no method for measuring the vibration intensity related to the range extender
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[0036] The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of them. Based on the present invention All other embodiments obtained by persons of ordinary skill in the art without creative efforts, all belong to the scope of protection of the present invention.
[0037] A bench for measuring the vibration intensity of a range extender, comprising
[0038] A range extender, the range extender includes an engine, a range extender motor, a GCU (motor controller) and an ECU (electronic control unit);
[0039] The ECU reads various parameter information on the engine through the wiring harness, the engine is connected to the range-extending motor through the connecting shaft, and the range-extending motor is connected to the ECU through the range-extending ...
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The invention discloses a measuring rack for the vibration intensity of a range extender and a measuring method of the measuring rack, and belongs to the technical field of range extender testing. An ECU reads parameter information of an engine, the engine is connected with a range extending motor, and the range extending motor is connected with the ECU; a fuel oil supply system supplies fuel oil to an engine and adjusts the pressure; an air inlet system is connected with a throttle valve of the engine and provides air needed by combustion for the engine. a motor cooling water circulation system and a GCU cooling water circulation system are used for cooling the range extending motor and the GCU; a power supply system supplies power to the rack; the measuring rack is connected; vibration measuring points and sensors are arranged; the working condition is measured, and vibration and rotating speed data are measured, analyzed and calculated; and the vibration intensity and the vibration intensity grade of the range extender are obtained, and the operation stability is judged. According to the method, a reference basis is provided for design and development of new energy automobiles, the blank of measurement and analysis of the vibration intensity of the range extender is filled up, and the method has great guiding significance in mass production of the range extender.
Description
technical field [0001] The invention relates to a measuring bench for measuring the vibration intensity of a range extender and a measuring method thereof, belonging to the technical field of range extender testing. Background technique [0002] The exhaust of traditional fuel vehicles not only pollutes the environment, but also affects people's health; although pure electric vehicles have no exhaust problems, their cruising range is significantly worse than that of fuel vehicles. Therefore, extended-range vehicles have become the choice of more car owners. While taking into account the power and economy of the vehicle, the range-extended vehicle also puts forward higher requirements on the NVH of the vehicle. [0003] In range-extended vehicles, the range extender is the main vibration source, and there is currently no method for measuring the vibration intensity related to the range extender. Contents of the invention [0004] In order to solve the problems existing in...
Claims
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IPC IPC(8): G01M7/02G01M7/06
CPCG01M7/025G01M7/06
Inventor 宫茂云赵兴天卢洪泉王德春臧运刚娄建民刘鹤孙海珠刘广辉
Owner HARBIN DONGAN AUTO ENGINE