Wet-type double clutch temperature acquisition method and device
A technology of wet dual clutch and acquisition method, which is applied in the field of wet dual clutch temperature acquisition, can solve the problem of low accuracy of clutch-related temperature, and achieve the effect of improving the accuracy of acquisition
Pending Publication Date: 2022-07-08
GUANGZHOU AUTOMOBILE GROUP CO LTD
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Problems solved by technology
[0004] The present invention provides a wet double clutch temperature acquisition method and device to solve the problem in the prior art that the accuracy of the final acquired clutch-related temperature is low
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[0054]The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0055] The method for obtaining the temperature of a wet dual clutch provided by the present invention is applicable to various wet dual clutches, the wet dual clutch includes a first clutch and a second clutch, wherein the first clutch refers to an odd-numbered clutch, and the second clutch refers to an even-numbered clutch clutches; alternatively, the first clutch refers to an even-numbered clutch and the second clutch refers to an odd-numbe...
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The invention discloses a wet-type double clutch temperature obtaining method and device which are used for improving the accuracy of obtained clutch related temperature. The method comprises the steps that vehicle operation parameters are obtained, wherein the vehicle operation parameters comprise a vehicle initial operation state bit; judging whether the initial running status bit meets a preset condition or not; if the initial operation state position meets the preset condition, the segment temperature of a target segment in the first clutch at the last moment is obtained; the sliding friction power of the target segment is obtained, and the cooling power of the target segment at the current moment is obtained; the heat conduction power of the second clutch to the first clutch at the current moment is obtained; and determining the temperature of the target segment at the current moment according to the segment temperature, the sliding friction power, the cooling power and the heat conduction power at the previous moment.
Description
technical field [0001] The invention relates to the technical field of vehicle control, and in particular, to a method and a device for acquiring the temperature of a wet dual clutch. Background technique [0002] The dual-clutch automatic transmission has the characteristics of fast shifting and no power interruption, which can provide the vehicle with good driving performance. Dual clutch transmission can be divided into dry dual clutch and wet dual clutch according to different clutch types. [0003] In order to prevent the clutch from being damaged due to excessive temperature of the clutch, it is necessary to monitor the temperature related to the clutch of the vehicle. In the prior art, a method for obtaining the temperature of the clutch is proposed. The actual lubrication flow flowing into the clutch assembly, the engine speed, the transmission oil temperature and the friction power of the two clutches, calculate the temperature of the two clutch surfaces, and then ...
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IPC IPC(8): B60W40/00B60W50/00
CPCB60W40/00B60W50/00
Inventor 何小龙邓云飞熊杰彭耀润张新桂刘新雨
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD