Coordinated control method, system and device for engine and clutch during gear shifting

A technology of coordinated control and engine, which is applied in the field of power transmission system, can solve the problems such as the lack of reference experience, and achieve the effects of preventing engine flameout, rapid response performance, and ensuring reliability

Active Publication Date: 2019-01-04
CHINA AUTOMOTIVE TECH & RES CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is not much experience for reference in this area, and there is still room for improvement

Method used

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  • Coordinated control method, system and device for engine and clutch during gear shifting
  • Coordinated control method, system and device for engine and clutch during gear shifting
  • Coordinated control method, system and device for engine and clutch during gear shifting

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Embodiment Construction

[0048] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0049] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0050] Principle of the present invention is introduced:

[0051] Automatic mechanical transmission (Automated Mechanical Transmission, AMT) is a shift and clutch control technology, which can realize the electrification and automation of traditional MT, and is widely used in passenger cars and commercial vehicles. In addition, dual clutch transmission (Dual Clutch Transmission, DCT) is another promising technology that is conducive to autonomous driving and is expected to increase its market share significantly in t...

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Abstract

The embodiment of the invention discloses a coordinated control method, system and device for engine and clutch during gear shifting, relating to the technical field of a powertrain system for coordinated control of an engine and a clutch of a vehicle equipped with a mechanical automatic transmission or a dual clutch transmission to enable the vehicle to maintain good acceleration tracking performance during gear shifting. The coordinated control method of the engine and the clutch in the transmission shifting process comprises the following steps: obtaining a target engine speed and an engineflywheel output torque, wherein the target engine speed is calculated by introducing a clutch slip rate and an engine idle speed; Using the target engine speed and the output torque of the engine flywheel end as inputs, obtaining a throttle opening degree by querying a pre-stored engine torque characteristic curve diagram; the ignition timing of the engine is calculated and adjusted according tothe actual engine speed and the throttle opening.

Description

technical field [0001] The invention relates to the technical field of power transmission systems, in particular to a method, system and device for coordinated control of an engine and a clutch during a gear shifting process of a transmission. Background technique [0002] Automotive electronic control systems generally adopt a hierarchical control architecture, including an upper-level decision-making system and a lower-level execution system. For manual driving and automatic driving tasks, the current smart car can respond to and follow the target longitudinal acceleration command from the upper decision-making system. These instructions can be obtained by recognizing the intention of the driver or by calculations by an electronic control unit (Electronic Control Unit, ECU) such as Adaptive Cruise Control (Adaptive Cruise Control, ACC). In order to keep the vehicle at the target acceleration continuously with high precision and high efficiency, it is necessary to carefull...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/06B60W10/02B60W10/11B60W30/02
CPCB60W10/02B60W10/06B60W10/11B60W30/02Y02T10/40
Inventor 宋攀高继东龚进峰方锐高博麟魏东超唐野刘兴亮张慧党雪芒胡帛涛
Owner CHINA AUTOMOTIVE TECH & RES CENT
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