Optimized clutch control method based on wet clutch

A technology of wet clutch and control method, applied in the direction of clutch, mechanical equipment, etc., can solve the problems of limited application scope and poor clutch control effect.

A technology of wet clutch and control method, applied in the direction of clutch, mechanical equipment, etc., can solve the problems of limited application scope and poor clutch control effect.

CN102062166AActive Publication Date: 2011-05-18SHANGHAI AUTOMOBILE GEAR WORKS
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  • Optimized clutch control method based on wet clutch
  • Optimized clutch control method based on wet clutch
  • Optimized clutch control method based on wet clutch

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Embodiment Construction

[0026] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0027] like figure 1 As shown, it is a mechanical model of a wet clutch, and increasing the pressure between the master and driven discs of the clutch can increase the engine torque actually transmitted by the clutch. The invention optimizes the clutch control of the wet clutch by optimally controlling the critical point at which the clutch transmits engine torque.

[0028] like figure 2 As shown, it is a schematic diagram of the connection relationship between the gearbox and its control unit TCU and data storage unit EEPROM. TCU (Transmission Control Unit) is the electronic control unit of the gearbox. In ter...

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Abstract

The invention discloses an optimized clutch control method based on a wet clutch, belonging to the technical field of automobile transmissions. The optimized clutch control method comprises the steps of: carrying out meshing control optimization and release control optimization for a plurality times to obtain upper limit pressure values to be optimized and lower limit pressure values to be optimized, carrying out summation respectively, averaging to obtain a final optimized upper limit pressure value and a final optimized lower limit pressure value, and storing in an EEPROM (Electrically Erasable Programmable Read-Only Memory) space of a transmission control unit (TCU) to realize optimized clutch control. In the invention, dynamic factors such as clutch abrasion, temperature influences and the like are comprehensively considered so as to ensure that the control of the critical point of the clutch on beginning to transmit the torque of an engine is always maintained in an optimal state.

Description

technical field [0001] The invention relates to a method in the technical field of automobile transmissions, in particular to an optimized clutch control method based on a wet clutch. Background technique [0002] The so-called wet clutch means that the friction contact surface of the clutch friction plate during the sliding friction process is the friction of the liquid and semi-liquid interface. When the adhesion between the oil molecule layer and the friction surface is greater than the shear force generated by sliding, the clutch will be Start delivering engine torque. And this adhesion is related to various dynamic factors such as the surface roughness of the clutch itself, the characteristics of the friction material, the structure and shape of the friction plate, the characteristics of the oil, the driving temperature, and the wear of the clutch. In simple terms, when each clutch is initially manufactured, due to The deviation of machinery and materials is different ...

Claims

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Application Information

Patent Timeline
18 May 2011
Publication
CN102062166A
IPC
F16D48/06
Inventors
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