Cooling control system of dual-clutch gearbox
A clutch control and cooling control technology, applied in the direction of gear lubrication/cooling, etc., can solve problems such as increasing energy consumption, selective adjustment, and reducing cooling efficiency.
Active Publication Date: 2012-05-23
CHONGQING TSINGSHAN IND
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Problems solved by technology
However, the existing dual-clutch gearbox cooling system only uniformly adjusts the cooling oil flow of the two clutches, and cannot selectively adjust according to the different heating states of the two clutches, which increases energy consumption and reduces cooling efficiency.
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Embodiment Construction
[0017] Such as figure 1 As shown, the cooling control system of the dual-clutch gearbox of the present invention includes a cooling oil tank 1 and a pump 2, the input end of the pump 2 communicates with the cooling oil tank 1 through the first filter 3, and the output end of the pump 2 communicates with the main pressure pipeline 4 The main pressure pipeline 4 is equipped with an eighth filter 47, and the eighth filter 47 is connected in parallel with a bypass check valve 48. The main pressure regulating valve 5 is installed on the main pressure pipeline 4, and the oil inlet P1 and P2 of the main pressure regulating valve 5 are respectively connected with the main pressure pipeline 4, and the working oil port A of the main pressure regulating valve 5 is connected with the regulating pipeline 6 The working oil port B of the main pressure regulating valve 5 is connected with the input end of the pump 2 through the suction line 7. The main pressure regulating valve 5 includes a f...
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The invention provides a cooling control system of a dual-clutch gearbox, relating to a hydraulic control circuit, aiming at providing a cooling control system of the dual-clutch gearbox which can selectively cool the clutch. The invention comprises a cooling oil tank and a pump; the input end of the pump is communicated with the cooling oil tank; the output end of the pump is communicated with amain pressure pipeline which is provided with a main pressure regulating valve; the main pressure regulating valve comprises a first offset assembly and a valve assembly; the right control end of thevalve assembly is communicated with the main pressure pipeline; a working oil port A of the main pressure regulating valve is connected with the left control end of the main pressure regulating valve; the first clutch hydraulic pipeline and the second clutch hydraulic pipeline are respectively communicated with the first clutch and the second clutch; a pilot-operated two-position three-way valve is arranged between the first clutch hydraulic pipeline and the second hydraulic pipeline; and the first clutch hydraulic pipeline and the second clutch hydraulic pipeline are respectively connected with the left and right control ends of the pilot-operated two-position three-way valve.
Description
technical field [0001] The invention relates to a hydraulic control circuit, in particular to a cooling control circuit for a dual-clutch gearbox. Background technique [0002] The cooling and lubrication of dual clutch transmission is one of the important key technologies in the design and development of dual clutch transmission, which is directly related to the long-term safe use and reliability of the transmission. The main issues concerned with clutch cooling and lubrication are the selective cooling of the clutch and the adjustment of the lubrication flow. In the cooling and lubrication system of the existing dual-clutch automatic transmission, the control scheme is relatively complicated and the functions are lacking. The publication numbers are US2006005647A1, In the US patent application US2006009326A1, a proportional flow valve is used to control the pressure, which controls the flow cross section of the three-position four-way slide valve and adjusts the cooling fl...
Claims
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IPC IPC(8): F16H57/04
Inventor 周勇游同生斯红路刘冲刘松
Owner CHONGQING TSINGSHAN IND