Gear-shifting control method and system

A control method and technology of a control system, applied in the field of automobile transmissions, can solve the problems of low shifting efficiency and power delay, etc.

Active Publication Date: 2018-08-07
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] When the driver changes the shift intention during driving, for the scenario where the previous shift request can be skipped directly, the shift controller in the prior art still needs to respond and execute the shift request in sequence. Responsive shifting

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  • Gear-shifting control method and system
  • Gear-shifting control method and system

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Embodiment Construction

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0048] In order to better understand the technical solutions provided by the embodiments of the present invention, the transmission in the shift control system is firstly introduced, and the dual-clutch automatic transmission commonly used in automobiles is taken as an example for illustration below. The dual clutch automatic transmission can include two coaxial nested or parallel arranged clutches, coaxial or inner and outer nested arrangement inner input shaf...

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Abstract

An embodiment of the invention relates to the technical field of automobile transmissions and provides a gear-shifting control method and system. The gear-shifting control method includes: acquiring acurrent request gear position; acquiring a target gear position and execution states thereof, wherein the execution states of the target gear position include an executing state and an executed state; when the target gear position is in the executing state, judging whether the request gear position is identical to the target gear position or not; if not, determining changing of gear-shifting intention, and under the condition that quick gear-shifting conditions are met, determining the current request gear position as the target gear position, and executing gear-shifting operation aiming at the target gear position. By adoption of the method for gear-shifting control, when a driver changes gear-shifting intention in a driving process, as for a circumstance allowing direct skipping of a last gear-shifting request, the gear-shifting operation corresponding to the current gear-shifting request is carried out when meeting of the quick gear-shifting conditions is determined, and accordingly gear shifting efficiency under the circumstance is improved.

Description

technical field [0001] The invention relates to the technical field of automobile transmissions, in particular to a shift control method and system. Background technique [0002] Generally, the gear shifting operation can include two operations of engaging gear and removing gear. The car can realize the gear shifting operation through the gear shifting control system. The relationship between the gears determines whether to perform the gear-on control or the gear-off control, and controls the synchronizer to perform the gear shifting operation in an orderly manner. [0003] At present, the shifting operation of the car is often executed in sequence according to the order of the shifting requests. Specifically, if the shifting operation corresponding to the previous shifting request is in the executing state when the current shifting request is initiated, it is necessary to wait for the previous shifting operation The current shift request can only be responded to after comp...

Claims

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Application Information

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IPC IPC(8): F16H61/02F16H63/32
CPCF16H61/0213F16H63/32F16H2061/0216
Inventor 朱成马培义胡亮徐瑞雪张友皇
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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