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Automatic transmission control method

A technology of automatic transmission and control method, which is applied in the direction of transmission control, transmission, fluid transmission, etc., can solve the problems of obvious shock feeling of the whole vehicle, difficult to completely eliminate the impact of engine calibration, and customer complaints, so as to improve the stability , impact improvement, and the effect of solving the impact

Active Publication Date: 2019-04-05
SHENGRUI TRANSMISSION
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] However, existing automatic transmissions also have disadvantages. For example, when the vehicle is running normally, when the accelerator is suddenly increased, the engine torque will increase too fast, which will cause a significant impact on the vehicle.
[0004] At present, there are no relevant measures to solve the above problems in automatic transmissions, and it is difficult to completely eliminate the impact caused by excessive torque growth in engine calibration
And this kind of shocking working condition is easy to appear during normal driving. If it is not handled properly, it will cause complaints from customers

Method used

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Embodiment 1

[0044] see figure 1 As shown, this embodiment provides an automatic transmission control method.

[0045] The automatic transmission control method is suitable for a transmission with a hydraulic torque converter. Specifically, the transmission may include a hydraulic torque converter, a reduction mechanism, a differential and a lock-up clutch. The lock-up clutch can control the hydraulic torque converter to be in the locked state or to release the locked state.

[0046] One end of the torque converter is connected to the engine of the vehicle, and the other end is connected to the input gear of the reduction mechanism. The reduction mechanism is connected to the differential through the output shaft, thereby outputting power to the wheels. The torque converter includes a torque converter input shaft, a torque converter output shaft, a torque converter turbine and a torque converter pump wheel. Among them, one end of the input shaft of the torque converter is connected with...

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Abstract

The invention relates to the technical field of vehicle running control, and discloses an automatic transmission control method. The automatic transmission control method comprises the steps that theaccelerator opening degree change rate of the current running state of a vehicle is acquired; whether the vehicle enters in a rapid accelerating state or not according to the accelerator opening degree change rate, and if the vehicle enters in the rapid accelerating state, the state of a hydraulic torque converter is acquired; if the hydraulic torque converter is in a locked state, a locking clutch is controlled to conduct a locking releasing action on the hydraulic torque converter to enable the hydraulic torque converter to release locking; the locking clutch is controlled to maintain the locking releasing action on the hydraulic torque converter in the preset time; whether the time that the locking clutch maintains the locking releasing action on the hydraulic torque converter reaches the preset time or not; and if the time reaches the preset time, the locking clutch is controlled to conduct a locking action on the hydraulic torque converter to enable the hydraulic torque converterto be locked. According to the automatic transmission control method, the problem that impact is generated due to the fact that the accelerator opening degree of an automatic transmission is increasedis solved, and the whole vehicle running steadiness is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle operation control, in particular to an automatic transmission control method. Background technique [0002] Existing automatic transmissions generally include a gearbox and a hydraulic torque converter arranged between the gearbox and the engine. Automatic transmission Due to its simple operation, the use of automatic transmission in vehicles is becoming more and more common. [0003] However, existing automatic transmissions also have disadvantages. For example, when the vehicle is running normally, when the accelerator is suddenly increased, the engine torque will increase too fast, which will cause a significant impact on the vehicle. [0004] At present, there are no relevant measures to solve the above problems in automatic transmissions, and it is difficult to completely eliminate the impact caused by excessive torque growth in engine calibration. And this shocking working condition is eas...

Claims

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Application Information

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IPC IPC(8): F16H61/24F16H61/14
CPCF16H61/14F16H61/24
Inventor 宗伟刘强郭伟许永信郭太民陈彦波鲁曦李文冠
Owner SHENGRUI TRANSMISSION
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