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Gear-shifting control method of automatic gear box

A technology of automatic transmissions, control methods, applied in the direction of transmission control, elements with teeth, belts/chains/gears, etc.

Active Publication Date: 2013-07-17
BEIJING JINGWEI HIRAIN TECH CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the shifting control method in the prior art uses the same torque recovery rate to control the power system to restore torque transmission regardless of the driver's requirements for vehicle power and smoothness.
Therefore, the existing shift control methods cannot meet the different requirements of different drivers for the power and smoothness of the car.

Method used

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  • Gear-shifting control method of automatic gear box
  • Gear-shifting control method of automatic gear box
  • Gear-shifting control method of automatic gear box

Examples

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Embodiment Construction

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0048] The embodiment of the present application discloses a shift control method of an automatic transmission to meet the different requirements of different drivers on the power and stability of the vehicle.

[0049] refer to figure 1 The shift control method based on the automatic transmission provided in Embodiment 1 of the present application includes the following steps:

[0050] S101: Determine and store the corresponding relationship between throttle parameters and weight coefficie...

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Abstract

The application discloses a gear-shifting control method based on automatic gear box. The gear-shifting control method comprises the following steps of: determining and storing a corresponding relation between throttle parameters and weight coefficients; obtaining the throttle parameters when gear-shifting, and serving as the current throttle parameters; inquiring the corresponding relation, and determining the current weight coefficients corresponding to the current throttle parameters; amending a torque recovery rate according to the current weight coefficients, and serving as the torque recovery rate of this time; and controlling a power system to carry out torque recovery at the torque recovery rate of this time during the torque recovery period. According to the application, the corresponding weight coefficients are determined according to the throttle parameters when gear-shifting, then the torque recovery rate is amended through the weight coefficients, and the power system is controlled to carry out torque recovery at the torque recovery rate after being amended during the torque recovery period, so that different requirements of different drivers for motor vehicle dynamic characteristics and smoothness during the gear-shifting process are met, and the problems in the prior art are solved. The application further discloses a gear-shifting control device based on automatic gear box.

Description

technical field [0001] The present application relates to the technical field of automobile control, in particular to an automatic transmission shift control method. Background technique [0002] The process of shifting gears through an automatic transmission includes four stages: torque unloading of the power system, speed regulation of the transmission, shifting into the target gear, and torque recovery of the power system. Among them, the torque recovery rate in the torque recovery stage of the power system affects two contradictory performance indicators of the vehicle—power and ride comfort: the smaller the torque recovery rate, the better the ride comfort and the worse the power performance (that is, the power The smoother the recovery, the smoother the car running); on the contrary, the greater the torque recovery rate, the better the power performance and the worse the ride comfort (that is, the faster the power recovery, the greater the driving impact of the car). ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H59/34F16H61/32
Inventor 董翔宇李涛陈志平王舜琰
Owner BEIJING JINGWEI HIRAIN TECH CO INC
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