System and method for controlling hydraulic pressure of damper clutch
A shock-absorbing clutch, hydraulic pressure technology, applied in the field of hydraulic pressure system, can solve the problems of spending too much time and cost, low control reliability, etc.
Inactive Publication Date: 2014-04-09
HYUNDAI MOTOR CO LTD
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Problems solved by technology
[0007] However, the prior art has a problem that it takes too much time and cost to set the hydraulic pressure of the damper clutch because the hydraulic pressure setting method of setting the hydraulic pressure by repeating actual tests needs to be performed for each transmission condition. Execute the setup process described
In addition, although the hydraulic pressure is set by the method of the prior art, since the relationship between the control load and the actual released hydraulic pressure is not linear, the control reliability is not high
[0008] In addition, the existing technology has the problem that whenever the control logic or hardware of the transmission management system is changed, it takes extra time and cost to perform the hydraulic pressure setting process from start to finish
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[0028] Reference will now be made in detail to various embodiments of the present invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be appreciated that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments but also various alternatives, modifications, equivalents and other alternatives, modifications, equivalents and others, which may be included within the spirit and scope of the invention as defined by the appended claims. implementation plan.
[0029] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0030] figure 1 is a block diagram of a system 10 for controlling hydraulic pressure of a damper clutch according to an exemplary embodiment of...
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The invention relates to a system and method for controlling hydraulic pressure of a damper clutch. The method for controlling hydraulic pressure of a damper clutch may include determining a hydraulic pressure control mode of the damper clutch in accordance with vehicle driving conditions and a state of the damper clutch, determining a hydraulic pressure control value according to the hydraulic pressure control mode, determining target waveforms of engine rotation speed and turbine rotation speed according to the hydraulic pressure control mode, detecting a waveform of the engine rotation speed and a waveform of the turbine rotation speed, judging whether detected waveforms of the engine rotation speed and the turbine rotation speed correspond with the target waveforms thereof respectively, and, regulating the hydraulic pressure control value so as to make the detected waveforms of the engine rotation speed and the turbine rotation speed correspond with the target waveforms of the engine rotation speed and the turbine rotation speed respectively.
Description
[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2012-0110930 filed on Oct. 5, 2012, the entire contents of which are hereby incorporated by reference for all purposes adopted by this reference. technical field [0003] The present invention relates to systems and methods for controlling hydraulic pressure to damper clutches. Background technique [0004] In general, the gear speed of an automatic transmission is automatically changed to a target speed by a transmission control device that controls hydraulic pressure by controlling a number of solenoid valves according to the throttle opening and several detection conditions. [0005] The automatic transmission has a torque converter installed between the engine and the transmission, and the damper clutch is installed inside the torque converter. The damper clutch can be made to slip, open or lock by the operation of controlled hydraulic pressure...
Claims
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IPC IPC(8): F16H61/38
CPCB60W10/023F16H61/06F16H61/14F16D48/066F16D2500/3024F16D2500/30401F16D2500/3067F16D2500/30803F16D2500/31F16D2500/3108F16D2500/50858F16D2500/70217F16D2500/7027F16D2500/70406F16H59/14F16H61/02
Inventor 金荣旻
Owner HYUNDAI MOTOR CO LTD