Engine torque control method and automobile

A technology of engine torque and control method, which is applied in the direction of transmission control, mechanical equipment, components with teeth, etc., can solve the problems of engine and clutch speed synchronization process impact, etc., and achieve the effect of smooth combination

Active Publication Date: 2017-06-30
SAIC MOTOR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is to provide an engine torque control method and an automobile, which solves the problem that the engine and the automobile use the dry clutch when the automobile adopts a dry clutch and accelerates to the first gear or the second gear when the vehicle is coasting in neutral. The problem of impact during the clutch speed synchronization process

Method used

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  • Engine torque control method and automobile
  • Engine torque control method and automobile
  • Engine torque control method and automobile

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Embodiment Construction

[0041] As mentioned in the background technology section, the engine torque control method of a car using a dry clutch in the prior art cannot solve the problem that occurs during the synchronization of the engine and clutch speeds during the start of the car when the car is coasting from neutral to first or second gear. shock.

[0042]The present invention proposes an engine torque control method. According to the target engine speed of the car, the actual speed of the engine, the target gear position of the gearbox and the speed of the input shaft of the gearbox, the engine torque of the car is controlled by a proportional link and an integral link, so that The automobile outputs the engine target torque; and adjusts the control of the proportional link and the integral link according to the speed difference between the actual engine speed and the speed of the input shaft of the gearbox and the target gear of the gearbox. The utility model can solve the problem of shock gene...

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PUM

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Abstract

The invention discloses an engine torque control method suitable for an automobile adopting a dry clutch. The engine torque control method comprises the steps that the target engine rotating speed, the actual engine rotating speed, the target transmission gear and the transmission input shaft rotating speed of the automobile are acquired; the engine torque of the automobile is subjected to proportional element and integral element control according to the actual engine rotating speed, the target transmission gear and the transmission input shaft rotating speed of the automobile, so that the automobile outputs the target engine torque; and proportional element and integral element control is adjusted according to the difference between the actual engine rotating speed and the transmission input shaft rotating speed, and the target transmission gear. According to the scheme aiming at the automobile adopting the dry clutch, under the starting work condition of the automobile at a neutral gear sliding to be accelerated to the first or second gear, stable acceleration of the automobile is ensured through impaction generated in the rotating speed synchronous process of the engine and the clutch.

Description

technical field [0001] The invention relates to automobile power transmission technology, in particular to an engine torque control method and an automobile. Background technique [0002] Dual Clutch Transmission (DCT for short) is a mechanical automatic transmission. Its power is transmitted through two clutches to connect two input shafts. The passive gears of adjacent gears mesh with the gears of the two input shafts. The control of the two clutches realizes the conversion of the transmission ratio without cutting off the power, thereby shortening the shifting time and improving the shifting quality. This gear shifting method is mostly used in hybrid electric vehicles, and has excellent performance and broad application prospects. There are two types of dual clutch transmissions: dry clutch and wet clutch. [0003] In the prior art, in a dual-clutch transmission vehicle, especially a vehicle with a dry clutch, in the start-up condition of coasting from neutral to first ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/04F16H59/46
CPCF16H59/46F16H61/0437F16H2306/00
Inventor 仇杰胡峰关懿峰吴远波徐佳
Owner SAIC MOTOR
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