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Control method for electronic control mechanical automatic transmission

A technology of automatic transmission and control method, applied in the direction of transmission control, mechanical equipment, components with teeth, etc., can solve the problems of poor driving experience, easily damaged mechanism, etc., to improve driving comfort, improve driving performance, Optimizing the effect of shifting quality

Active Publication Date: 2013-07-17
SHANGHAI E PROPULSION AUTO TECH
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  • Summary
  • Abstract
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Problems solved by technology

However, during the shifting process, due to the mismatch of torque and speed between the power source end and the output end in the gearbox, when the gear is disengaged and combined, it is easy to generate an impact between the power source end and the output end in the gearbox. Not only does it cause poor driving experience, but it is also easy to damage the mechanism

Method used

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  • Control method for electronic control mechanical automatic transmission
  • Control method for electronic control mechanical automatic transmission
  • Control method for electronic control mechanical automatic transmission

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Embodiment Construction

[0014] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0015] figure 1 A schematic diagram showing a power system of an electromechanical automatic transmission according to a specific embodiment, such as figure 1 As shown, a power system 100 of an electromechanical automatic transmission includes a vehicle controller 1 , a power source controller 2 , a shift actuator 3 , a power source 4 , a gearbox 5 and a final drive 6 . Wherein, the vehicle controller 1 communicates with the power source controller 2 and the shift actuator 3 through, for example, a CAN bus, so as to control the power source controller 2 and the shift actuator 3 respectively. The power source controller 2 is connected with the power source 4 through a power line, so as to control the power source 4 to output expected t...

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Abstract

The invention discloses a control method for an electronic control mechanical automatic transmission. The control method comprises the steps of: obtaining a current gear and a target gear, and comparing the current gear with the target gear; if the current gear is consistent with the target gear, performing no intervention on a power source; and if not consistent, searching a torque adjustment gradient table to generate a target torque, sending a command to instruct the power source to adjust the torque, and judging a torque adjustment completion status. By utilizing the control method, gears can be smoothly switched, the driveability is improved through a reasonable method, and the driving conformability is improved.

Description

technical field [0001] The invention belongs to the technical field of shift control of automatic transmissions, and in particular relates to a control method for electronically controlled mechanical automatic transmissions. Background technique [0002] The existing automatic transmission is mainly composed of a torque converter, a planetary gear mechanism, a hydraulic control system, and an electronic control system. The structure of the hydraulic system is complex, and the mechanical structure of the planetary gear mechanism and the torque converter is huge. [0003] With the development of automobile-related technologies in recent years, the new generation of automobile intelligent control is becoming more and more perfect, which brings more driving comfort and correspondingly reduces driving fatigue. Automatic transmission technology is one of the important scientific research achievements, which has become the standard configuration of modern mid-to-high-end cars. Bec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H63/50F16H59/02
Inventor 林潇方地委马成杰
Owner SHANGHAI E PROPULSION AUTO TECH
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