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Creep control method and system for automobile

An automobile and control function technology, which is applied in the field of automobile creep control methods and systems, and achieves the effects of stable performance, easy implementation and simple method.

Active Publication Date: 2013-10-23
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The creep function is a technology that assists in controlling the vehicle at a low speed, which can provide convenience for the driving of the vehicle. For vehicles with dual-clutch automatic transmissions, there is currently no creep function with a simple algorithm and easy implementation. Control Method

Method used

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  • Creep control method and system for automobile
  • Creep control method and system for automobile
  • Creep control method and system for automobile

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Embodiment Construction

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0038] refer to figure 1 As shown, the creep control system of the present invention includes a creep control activation unit, a clutch desired torque control unit, a clutch control unit, an engine coordinated control activation unit, an engine request torque control unit and an engine control unit.

[0039] refer to figure 2 As shown, the working process of the creep control method and system of the present invention is: the creep control activation unit activates / closes the creep function according to the actual vehicle speed and the...

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Abstract

The invention provides a creep control method for an automobile. The method comprises the following steps of activating / deactivating a creep control function according to actual vehicle speed and accelerator opening; and when the creep control function is in an activated state, performing operation of determining expected vehicle speed based on the rotating speed of an engine, the expected idle speed of the engine and the position of a braking pedal, performing proportional-integral control on the expected torque of a clutch to regulate the expected torque of the clutch based on a vehicle speed difference between the expected vehicle speed and the actual vehicle speed, and controlling the clutch according to the expected torque of the clutch. Correspondingly, the invention also provides a creep control system for the automobile. According to the creep control method and the creep control system for the automobile, different driving working conditions are included, and the system is stable in performance and easy to implement.

Description

technical field [0001] The invention relates to automobile electrical control technology, in particular to an automobile creep control method and system. Background technique [0002] The creep function is a technology that assists in controlling the vehicle at a low speed, which can provide convenience for the driving of the vehicle. For vehicles with dual-clutch automatic transmissions, there is currently no creep function with a simple algorithm and easy implementation. Control Method. Contents of the invention [0003] In order to solve the above-mentioned technical problem, the present invention proposes a kind of automobile creep control method, and it is applicable to the vehicle that has dual-clutch automatic transmission, and technical scheme is as follows: [0004] A method for automobile creep control, comprising: activating / closing the creep control function according to the actual vehicle speed and the accelerator opening; when the creep control function is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/02B60W10/04
Inventor 张友皇尹良杰黄孝奎桂鹏程
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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