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Control method of hydraulic torque converter

A technology of hydraulic torque converter and control method, which is applied in the direction of transmission control, geared components, fluid transmission devices, etc., can solve problems affecting shift quality, etc., and achieve excellent shift quality, high transmission efficiency, Addressing the effects of fuel economy

Active Publication Date: 2018-06-29
浙江万里扬智能传动有限公司
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Problems solved by technology

[0003] In order to improve fuel efficiency, a lock-up clutch controlled by an on-off solenoid valve is used to achieve a mechanical connection, but vibration and noise at low speeds will be introduced into the transmission system, so lock-up can only be applied to high-speed conditions and will affect gear shifting quality

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  • Control method of hydraulic torque converter
  • Control method of hydraulic torque converter
  • Control method of hydraulic torque converter

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Embodiment Construction

[0047] The specific implementation of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0048] Such as figure 1 As shown, the present invention divides the control software of hydraulic torque converter into 4 modules:

[0049] 1. Input module: responsible for obtaining the input signals needed for torque converter control, including signals such as engine speed, engine torque, accelerator pedal opening, turbine speed, vehicle speed and transmission oil temperature;

[0050] 2. Target mode scheduling management module: integrate the requirements of fuel economy and comfort to obtain the most suitable control target for the current working condition;

[0051] 3. Process control module: responsible for calculating the ...

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Abstract

The invention discloses a control method of a hydraulic torque converter. The control method includes following steps: through a target mode scheduling management module, integrating requirements on fuel oil economy and comfort to acquire a control target most suitable for current working conditions; through a TCC process control module, correspondingly controlling according to mechanical and hydraulic characteristics of the hydraulic torque converter to follow the control target. By adopting the above technical scheme, best gear shifting quality and highest transmission efficiency are realized, vibration and noise are lowered to maximum extent, and a contradiction between comfort and fuel oil economy in the prior art is solved.

Description

technical field [0001] The invention belongs to the technical field of automatic transmission control of automobiles. More specifically, the present invention relates to a control method of a hydraulic torque converter. Background technique [0002] The hydraulic torque converter is used to connect the engine and the automatic transmission; on the one hand, it transmits torque through the hydraulic path, which improves the comfort and smoothness of starting; on the other hand, it loses the advantages of high mechanical connection efficiency. [0003] In order to improve fuel efficiency, a lock-up clutch controlled by an on-off solenoid valve is used to achieve a mechanical connection, but vibration and noise at low speeds will be introduced into the transmission system, so lock-up can only be applied to high-speed conditions and will affect gear shifting quality. Contents of the invention [0004] The invention provides a control method of a hydraulic torque converter, t...

Claims

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Application Information

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IPC IPC(8): F16H61/14F16H61/48
CPCF16H61/143F16H61/48F16H2061/0015F16H2061/145F16H2061/146
Inventor 倪斌任华林戴祥亭杨加丰郑勇
Owner 浙江万里扬智能传动有限公司
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