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A clutch control method during vehicle braking and parking

A technology for clutch control and vehicle braking, applied to clutches, mechanical equipment, etc., to achieve the effect of ensuring driving performance

Active Publication Date: 2020-05-22
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Accurate control of the actual torque transmitted by the clutch under different operating conditions has always been a blind spot in the control strategy

Method used

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  • A clutch control method during vehicle braking and parking
  • A clutch control method during vehicle braking and parking
  • A clutch control method during vehicle braking and parking

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Experimental program
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Embodiment Construction

[0041] In order to make the technical problems to be solved in the present invention, technical solutions and advantages clearer, the following will be combined with the attached figure 1 and specific embodiments are described in detail.

[0042] figure 1 It is a schematic flowchart of a clutch control method during vehicle braking and parking provided by an embodiment of the present invention; figure 2 It is a schematic diagram of the clutch control method during the braking and parking process of the vehicle provided by the embodiment of the present invention. like figure 1 and figure 2 As shown, the clutch pressure control method during the vehicle braking and parking process provided by the embodiment of the present invention includes the following steps:

[0043] S101 , monitor the monitoring information in real time, the monitoring information includes gear status, braking signal, maximum clutch pressure within a preset time before the monitoring time, clutch speed...

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Abstract

The invention provides a clutch control method in the vehicle braking and parking processes. The clutch control method comprises the steps that monitoring information is monitored in real time and comprises a gear state, a braking signal, the maximum clutch pressure in the preset time before the monitoring time, the clutch rotating speed, the engine rotating speed and the engine target idling speed; if the monitoring information monitored at the current monitoring time meets all pressure dynamic compensation determination conditions, command pressure of a clutch meeting the compensation determination conditions is compensated; and when the monitoring information monitored at the current monitoring time meets any pressure dynamic compensation exiting determination condition, the command pressure of the compensated clutch stops being compensated. Through real-time compensation of the command pressure of the current clutch, torque transmission of the current working clutch is controlled precisely, and thus a vehicle has good driving performance.

Description

technical field [0001] The invention relates to a clutch control method, in particular to a clutch control method of a wet double-clutch automatic transmission during vehicle braking and parking. Background technique [0002] As an automatic transmission scheme, wet dual clutch transmission has been widely recognized by users in China. In this transmission system, the function of the dual clutch is to transmit the torque of the engine to the following transmission components reasonably and accurately. The precise control of the torque transmitted by the dual clutch is the basis for ensuring the normal execution of the entire transmission system such as crawling, starting, shifting, and pre-disengagement. The control of the transmission torque of the dual clutch is generally controlled and regulated by two schemes, that is, hydraulic mechanism regulation and motor mechanism regulation. The hydraulic mechanism controls the pressure of the clutch oil pressure cavity in the hy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D48/06
CPCF16D48/066F16D2500/1026F16D2500/1107F16D2500/3024F16D2500/3041F16D2500/3067F16D2500/308F16D2500/50287F16D2500/70217
Inventor 董宇王明玉李长洲朱桂庆刘国栋王歆誉
Owner CHINA FIRST AUTOMOBILE
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