Oil mass measuring method, oil mass measuring device and oil pressure calibration method

A measuring method and technology of measuring device, which are used in transmission control, engine lubrication, gear lubrication/cooling, etc., can solve the problem of inability to accurately measure the real oil volume of transmission oil, oil level temperature and oil pan shape change. and other problems to achieve the effect of improving the service life and improving the shifting performance.

Inactive Publication Date: 2012-08-22
GREAT WALL MOTOR CO LTD
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Problems solved by technology

[0006] Embodiments of the present invention provide an oil volume measurement method and device, and an oil pressure calibration method, which are used to solve the problem in the prior art that the oil level is greatly affected by the temperature and the shape of the oil pan, which leads to the inability to accurately measure the actual oil volume of the transmission oil. question

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  • Oil mass measuring method, oil mass measuring device and oil pressure calibration method
  • Oil mass measuring method, oil mass measuring device and oil pressure calibration method
  • Oil mass measuring method, oil mass measuring device and oil pressure calibration method

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Embodiment Construction

[0055] The method and device for measuring oil quantity and the method for calibrating oil pressure according to the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0056] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0057] Such as figure 1 As shown, a method for measuring oil quantity provided by an embodiment of the present invention includes:

[0058] Step 1. Measure the oil level corresponding to the current oil volume V of the oil pan to obtain the measured oil level H;

[0059] Step 2, correcting the measured oil level H to the first corrected oil level h corresponding to the oil pan with a regular shape;

[0060] Ste...

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Abstract

An embodiment of the invention discloses an oil mass measuring method, an oil mass measuring device and an oil pressure calibration method, relates to the technical field of automatic transmissions, and aims at solving the technical problem that in the prior art, an oil level is greatly influenced by temperature and shape variation of an oil pan so that the real oil mass of transmission oil cannot be measured accurately. The oil mass measuring method comprises measuring an oil level corresponding to current volume V of oil pan oil, and obtaining a measurement oil level H; correcting the measurement oil level H to a first correction oil level h corresponding to the oil pan in a regular shape; establishing a changing curve h-T of the first correction oil level h along with the oil temperature T and a changing curve rho-T of the oil density rho along with the oil temperature T; obtaining a pressure P value corresponding to the oil temperature T according to the curve h-T and the curve rho-T; and obtaining the oil mass of oil according to the pressure P value. The oil mass measuring method, the oil mass measuring device and the oil pressure calibration method are used for measuring the oil mass of a gearbox of the automatic transmissions.

Description

technical field [0001] The invention relates to the technical field of automatic transmissions, in particular to an oil quantity measuring method and device and an oil pressure calibration method. Background technique [0002] The transmission oil used in automatic transmissions has functions such as lubrication, hydraulic transmission, cooling, hydraulic control, and cleaning. The amount of oil directly affects the performance and life of the transmission. [0003] The oil tank of the automatic transmission, commonly has integral type and separate type, and the integral type oil tank is connected with the automatic transmission as a whole, and the oil sump of the automatic transmission is directly used as the oil tank. [0004] When working under normal tank temperature conditions, the tank liquid level should maintain the correct height. If the oil level is too low, the oil pump may suck in air when sucking oil. The compressibility of the air can make it difficult to wo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H63/40F16H59/72F16H57/04F16N29/04
Inventor 李志远董铁山
Owner GREAT WALL MOTOR CO LTD
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