Oil temperature control method and system for speed changer

A transmission control and oil temperature control technology, which is applied to components with teeth, transmission parts, belts/chains/gears, etc., can solve the problems of reducing the cooling oil temperature of the transmission, single adjustment method, and low precision, and achieve Fine oil temperature control, avoiding oil temperature rise, and ensuring quality

Active Publication Date: 2015-01-28
HYCET TRANSMISSION TECH HEBEI CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] This method has the following disadvantages: simply consider how to reduce the oil temperature of the transmission cooling oil from the aspect of adjusting the oil circuit system, the adjustment method is single, and the accuracy is low

Method used

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  • Oil temperature control method and system for speed changer
  • Oil temperature control method and system for speed changer
  • Oil temperature control method and system for speed changer

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Embodiment Construction

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0027]In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element refer...

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Abstract

The invention discloses an oil temperature control method and system for a speed changer. The method comprises the following steps: acquiring the oil temperature of speed changer cooling oil; controlling the speed changer to enter different temperature control modes according to the oil temperature of the speed changer cooling oil; when the speed changer runs in a current temperature control mode, judging whether the temperature control mode is switched or not according to the change trend of the oil temperature of the speed changer cooling oil, adjusting a gear shift curve to avoid the temperature rise of the speed changer cooling oil caused by frequent gear shift in the first temperature control mode, adjusting the opening of a solenoid valve to increase the oil amount of the speed changer cooling oil while controlling by the first temperature control mode in the second temperature control mode, and adjusting the oil pressure to further increase the oil temperature of the speed changer cooling oil while controlling by the second temperature control mode in the third temperature control mode. According to the oil temperature control method provided by the embodiment of the invention, the oil temperature of the speed changer cooling oil can be comprehensively and accurately controlled and the service life of the speed changer is effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a transmission oil temperature control method and system. Background technique [0002] Transmission, such as dual-clutch transmission, the gears are arranged on the shafts controlled by the two clutches according to the odd-even distribution. Under the corresponding control strategy, through the alternate switching of the clutch and the synchronizer, the transmission device that realizes power without interruption . The continuous friction of the friction plate of the dual-clutch transmission during the switching process will cause the oil temperature of the transmission cooling oil to rise. When the oil temperature exceeds the rated temperature, it will bring many side effects to the transmission, such as reducing the quality of the lubricating oil in the transmission and causing transmission wear. Intensify, affect the control accuracy of the transmission, reduce the serv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/04
CPCF16H57/0412F16H57/0413F16H2700/00
Inventor 张伟涛墨森
Owner HYCET TRANSMISSION TECH HEBEI CO LTD
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