A control method for alleviating vehicle resonance of hydraulic automatic transmission
A technology of automatic transmission and control method, applied in the direction of transmission device control, control device, transmission device, etc., can solve the problems of reduced driving comfort, no detection, low efficiency, etc., and achieve the effect of improving driving comfort and avoiding misjudgment
Active Publication Date: 2020-12-22
SHENGRUI TRANSMISSION
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Problems solved by technology
For example, installing vibration and noise reduction devices, installing resonance detection and alarm methods, devices and systems, etc., the main disadvantages are: the above methods are mainly through hardware optimization, high cost, and long verification cycle
[0005] In the process of realizing the present invention, the inventor found that the prior art has at least the following deficiencies: when it is in the open state, the efficiency will be low because of oil transmission; When, it feels obvious and reduces the driving comfort
[0006] At present, there is no method to use software control to temporarily open the hydraulic torque converter to alleviate the resonance of the whole vehicle
Method used
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[0023] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that the following does not constitute a limitation to the protection scope of the present invention.
[0024] Examples such as figure 1 As shown, a control method for alleviating the vehicle resonance of a hydraulic automatic transmission includes the following steps:
[0025] 1. When the hydraulic torque converter is in the locked state, monitor the resonance degree of the whole vehicle. When the resonance degree meets the conditions, control the hydraulic torque converter from the locked state to the open state and continue to monitor the resonance degree of the whole vehicle;
[0026] 2. After the torque converter is in the open state for a duration of t, control the hydraulic torque converter...
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The invention discloses a control method for relieving the resonance of a vehicle provided with a hydraulic automatic transmission. In the locked state of a hydraulic torque converter, when it is judged that the resonance degree of the vehicle meets a condition, the hydraulic torque converter is controlled to switch from the locked state to a started state; and after lasting for time t in the started state, the hydraulic torque converter is controlled to switch from the started state to the locked state. According to the control method, automatic transmission software is utilized to monitor the resonance degree of the vehicle in real time; in case of resonance, the hydraulic torque converter is switched to the started state to be in flexible connection so as to relieve the resonance of thevehicle, and driving comfort is improved; and a determination condition of the resonance is set, so that misjudgment of the resonance is avoided.
Description
technical field [0001] The invention belongs to the technical field of hydraulic automatic transmission control, and in particular relates to a control method for alleviating the resonance of a hydraulic automatic transmission vehicle. Background technique [0002] The hydraulic torque converter is a transmission device that transmits the power of the engine to the transmission, and consists of a pump wheel, a turbine wheel and a guide wheel. The pump wheel is connected with the flywheel end of the engine, and can convert the mechanical energy input by the engine into the kinetic energy of the liquid by virtue of the centrifugal force, which is used for the turbine to do work. The turbine is connected to the input shaft of the transmission, which can transmit the energy contained in the kinetic energy of the liquid to the inside of the transmission. [0003] The working state of the hydraulic torque converter has two working conditions: open and closed. When it is in the op...
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IPC IPC(8): F16H41/00F16H61/48B60K17/10
CPCB60K17/10F16H41/00F16H61/48
Inventor 刘强曹永高龙宗伟郭太民杨磊王洪志吴玉德王圣涛李志宗
Owner SHENGRUI TRANSMISSION