Test bench selection and shift displacement testing device and method
A testing device and a technology for shifting gears, which are used in measurement devices, testing of optical devices, and mechanical components, etc., can solve problems such as large size, complex structure, and complex mathematical models, and achieve high testing accuracy, simple structure, and volume. small effect
Active Publication Date: 2018-10-16
YANSHAN UNIV
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Problems solved by technology
The disadvantages of the above-mentioned testing method and testing device are: (1) the laser displacement sensor is expensive and cannot accurately measure the shifting displacement, but can only monitor the changing trend of the shifting displacement; (2) two angular displacement sensors and a straight line The combined measurement device composed of displacement sensors has a complex structure, and the mathematical model for the transformation from test parameters to shifting displacement is complex; (3) The displacement sensors in three directions installed on the shifting manipulator must depend on the shifting manipulator, volume huge
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[0027] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.
[0028] Such as figure 1 As shown, the test bench selection and shifting displacement testing device of the present embodiment includes: a biaxial dynamic inclination sensor 1, a signal line 2 and a data acquisition and processing system 3, and the biaxial dynamic inclination sensor 1 communicates with the data acquisition system through the signal line 2 Processing system 3 connections.
[0029] The shifting displacement testing device of the test bench in this embodiment also includes: a sensor bracket 4 and a fixing seat 5 , and the biaxial dynamic inclination sensor 1 is installed on the shift lever through the sensor bracket 4 and the fixing seat 5 . Specifically, the biaxial dynamic inclina...
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The invention, which relates to the technical field of testing of the automotive transmission unit, particularly discloses a testing apparatus and method for gear selection and shifting displacement of a test stand. The apparatus consists of a double-shaft dynamic tilt angle sensor, a signal line and a data acquisition processing system. The method comprises: the double-shaft dynamic tilt angle sensor is installed on a shift lever correctly and thus two testing shafts of the sensor are superposed with a gear selection direction and a gear shifting direction on a neutral surface respectively; during the gear selection and shifting process of the shift lever, the data acquisition processing system collects tilt angles of the double-shaft dynamic tilt angle sensor at two axial directions; a space right-angle fixed reference system is established; and two groups of tilt angle values tested by the double-shaft dynamic tilt angle sensor are converted into displacement of the center of the ball head of the shift lever based on a coordinate conversion matrix. According to the invention, the gear selection and shifting displacement of the transmission unit can be tested accurately; and installation can be carried out independently to complete testing. Moreover, the structure is simple; the size is small and exquisite; the cost is low; and the testing precision is high.
Description
technical field [0001] The invention relates to the technical field of automobile transmission testing, in particular to a device and method for testing shifting displacement of a test bench. Background technique [0002] Shift displacement is an important index to evaluate the shift performance of automobile transmission. Existing shifting displacement testing methods and testing devices mainly include: a combined measuring device consisting of a laser displacement sensor, two angular displacement sensors and a linear displacement sensor, and displacement sensors in three directions installed on the shifting manipulator, etc. . The disadvantages of the above-mentioned testing method and testing device are: (1) the laser displacement sensor is expensive and cannot accurately measure the shifting displacement, but can only monitor the changing trend of the shifting displacement; (2) two angular displacement sensors and a straight line The combined measurement device compose...
Claims
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IPC IPC(8): G01M13/02G01B11/26
CPCG01B11/26G01M13/022
Inventor 杨树军鲍永杨得青吴培李丞周友香刘丹丹
Owner YANSHAN UNIV