A hydraulic torque converter dynamic shock control device and control method
A technology of hydraulic torque converter and power shock, applied in transmission devices, fluid transmission devices, belts/chains/gears, etc., can solve the problems of short service life, increased wear of friction elements of locking clutches, affecting control effects, etc. To achieve the effect of reducing production cost, reducing overflow loss and realizing recycling
Active Publication Date: 2019-08-06
XIANGTAN UNIV
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Problems solved by technology
However, the dynamic impact of torque converter lock-up clutch slip intervention and termination not only affects the control effect, but also increases the wear of the friction elements of the lock-up clutch, reduces the lock-up and unlock performance of the torque converter, and reduces the lock-up clutch and The service life of the torque converter affects the driving experience and ride comfort at the same time
However, the existing hydraulic torque converter device cannot well solve the power impact problem when the lock-up clutch slips in and stops, resulting in poor performance and short service life of the torque converter lock-up clutch
Method used
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Embodiment Construction
[0038] The present invention will be further described below in conjunction with the accompanying drawings.
[0039] Such as figure 1 As shown, the hydraulic torque converter power shock control device of the present invention includes a hydraulic torque converter 21 , a hydraulic device and an electronic control unit 25 . The input shaft 261 of the hydraulic torque converter 21 is provided with a torque sensor 22 and a rotational speed sensor 23 , and the output shaft 181 is also provided with a torque sensor 19 and a rotational speed sensor 20 . The pressure sensor 24 is arranged between the lock-up clutch and the housing of the hydraulic torque converter 21 .
[0040] The hydraulic device includes a fuel tank 1, a filter 2, an oil pump 3, a relief valve 4, a fuel tank 5, a three-position four-way reversing valve 6, a first balance valve 14, a second balance valve 9, a first sequence Valve 12, second sequence valve 16, first damping hole 8, second damping hole 11, third da...
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The invention discloses a dynamic impact control device and method of a hydraulic torque converter. The device comprises the hydraulic torque converter, a hydraulic device and an electronic control unit. An input shaft and an output shaft of the hydraulic torque converter are each provided with a torque sensor and a rotation speed sensor. The hydraulic device comprises an oil tank, an oil pump and a three-position four-way reversing valve. The oil tank communicates with an oil inlet of the three-position four-way reversing valve through the oil pump. An oil way A and an oil way B of the three-position four-way reversing valve are each connected with a balance valve. The two balance valves communicate with a locking pressure oil inlet and a locking pressure oil outlet of the hydraulic torque converter through an oil inlet pipeline and an oil return pipeline correspondingly. Two pipelines are connected between the oil inlet pipeline and the oil return pipeline in parallel, one of the two pipelines is provided with a first sequence valve and a first one-way valve, and the other pipeline is provided with a second one-way valve and a second sequence valve. The torque sensors, the rotation speed sensors and the three-position four-way reversing valve are connected with the electronic control unit. The dynamic impact control device and method are convenient and accurate in controlling, the overflow loss is decreased, and the service life of the hydraulic torque converter is prolonged.
Description
technical field [0001] The invention relates to a dynamic shock control device and a control method of a hydraulic torque converter. Background technique [0002] The application of hydraulic torque converter in automobile automatic transmission is an important innovation of automobile transmission. The hydraulic torque converter uses liquid for energy conversion, and is one of the most important components of the automatic transmission system of a car. Cars equipped with a hydraulic torque converter have the advantages of good adaptability and high stability at low speeds. However, traditional hydraulic torque converters can only transmit hydraulically, and cannot convert hydraulic transmission into mechanical rotation under high-speed operating conditions. Although this can satisfy the comfort of passengers, it has the defect of low transmission efficiency. Lock-up slip control technology can simultaneously improve the transmission efficiency and reduce the size of the to...
Claims
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IPC IPC(8): F16H41/22
CPCF16H41/22
Inventor 刘金刚郑剑云毛雄志
Owner XIANGTAN UNIV