Oil charge control method for clutch in automatic transmission

A technology of automatic transmission and control method, applied in the direction of transmission control, components with teeth, belt/chain/gear, etc., which can solve the problems of inaccurate control and large workload, so as to ensure accuracy and simplify software Effects of Control and Calibration Work

Inactive Publication Date: 2015-12-23
HARBIN DONGAN AUTOMOTIVE ENGINE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention solves the problems of inaccurate control and large workload of the existing clutch oil filling control method in automatic transmissions, and further provides a method that can simplify software control and calibration work, and at the same time ensure the accuracy of clutch oil filling control A revolutionary control method for clutch oil filling in automatic transmission

Method used

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  • Oil charge control method for clutch in automatic transmission

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specific Embodiment approach

[0014] The specific embodiment provided by the invention is as follows:

[0015] Specific implementation methods: such as figure 1 As shown, a control method for clutch oil filling in an automatic transmission includes step 1. After the vehicle is started, according to the electrical characteristics of the solenoid valve, a current of 0.3A is first given to the solenoid valve to maintain a small opening of the solenoid valve plunger. Make the corresponding clutch build up a small oil pressure and maintain it; Step 2, keep the fixed current to the solenoid valve for 150ms to ensure that the clutch oil circuit is full of oil; Step 3, perform corresponding Boost oil filling control on the clutch.

[0016] A control method for clutch oil filling in an automatic transmission in the present invention does not directly control the oil filling of the clutch after the vehicle is started, but uses the electric current and the motion relationship of the solenoid valve plunger according t...

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Abstract

The invention discloses an oil charge control method for a clutch in automatic transmission, and relates to the technical field of control of automatic transmission. In order to solve the problems that an oil charge control method for a clutch in a current automatic transmission is not precise in control and great in working task load. The oil charge control method for the clutch in the automatic transmission comprises the following steps: step I, after a vehicle is started, applying current of 0.25-0.35A, according to electrical characteristics of a solenoid valve, to the solenoid valve, keeping a small aperture of a solenoid valve plunger piston, enabling the corresponding clutch to establish small oil pressure and keeping the small oil pressure; step II, continuously keeping fixed current of the solenoid valve for 140-160 seconds, and guaranteeing that a clutch oil path is filled up with oil; and step III, carrying out corresponding Boost oil charge control on the clutch. According to the oil charge control method, software control and calibration work is simplified, and oil charge control accuracy of the clutch is also guaranteed.

Description

technical field [0001] The invention relates to an oil filling control method, in particular to a clutch oil filling control method in an automatic transmission, and belongs to the technical field of automatic transmission control. Background technique [0002] A typical automatic transmission includes a torque converter and a power train with multiple speed gearing coupled to the torque converter. In addition, a hydraulic control system is installed on the automatic transmission for selectively operating at least one operable element included in the power train according to the operating state of the vehicle. [0003] The hydraulic control system of the automatic transmission engages / disengages at least one operable element through hydraulic pressure generated by an oil pump to achieve an appropriate gear position corresponding to a vehicle speed and a throttle opening. [0004] After the vehicle is stopped and the engine is turned off, the oil pump stops working, and each...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/30F16H61/32
CPCF16H61/30F16H61/32F16H2061/304F16H2061/323
Inventor 赵非丁麟卢洪英王惠王延昭辛海霞郑佳雷丁帮伟方立辉赵志旭闫立君张新亮吴鹏
Owner HARBIN DONGAN AUTOMOTIVE ENGINE MFG CO LTD
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