Control algorithm and device for clutch torque of double-clutch transmission and vehicle

A dual-clutch transmission and clutch torque technology, applied to clutches, mechanical equipment, etc., can solve the problems of low accuracy of expected torque and low accuracy of torque control, reduce the probability of vehicle damage, reduce speed fluctuations and change The effect of blocking impact and improving accuracy

Pending Publication Date: 2021-11-30
DONGFENG MOTOR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the power transmission part of the existing dual-clutch gearbox is a clutch, and the core control of the clutch is torque control. Usually, the clutch is controlled by using the expected torque of the clutch, and the expected torque is controlled by the speed between the actual speed and the target speed. The difference is calculated, so that the accuracy of the calculated expected torque is not high, so that the accuracy of torque control is not high

Method used

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  • Control algorithm and device for clutch torque of double-clutch transmission and vehicle
  • Control algorithm and device for clutch torque of double-clutch transmission and vehicle
  • Control algorithm and device for clutch torque of double-clutch transmission and vehicle

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Embodiment

[0037] Please refer to figure 1 , the embodiment of the present application provides a dual-clutch gearbox clutch torque control algorithm, the method comprising:

[0038] S101. Acquiring the signal torque, actual rotational speed and accelerator parameters of the engine of the target vehicle during the running process of the target vehicle;

[0039] S102. Determine a rotational speed difference according to the actual rotational speed and the acquired target rotational speed;

[0040] S103. Determine a PID proportional coefficient according to the speed difference and the accelerator parameter;

[0041] S104. Determine the compensation torque of the clutch according to the PID proportional coefficient and the signal torque;

[0042] S105. Adjust the control torque of the clutch according to the compensation torque.

[0043] In the embodiment of this specification, the target vehicles may be fuel vehicles and hybrid vehicles.

[0044] Wherein, in step S101, during the driv...

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Abstract

The invention discloses a control algorithm for the clutch torque of a dual-clutch transmission. The control algorithm comprises the steps that an engine signal torque, an actual rotating speed and an accelerator parameter of a target vehicle are obtained in the running process of the target vehicle; a rotating speed difference is determined according to the actual rotating speed and an obtained target rotating speed; according to the rotating speed difference and the accelerator parameter, a PID proportionality coefficient is determined; according to the PID proportionality coefficient and the signal torque, the compensation torque of a clutch is determined; and the control torque of the clutch is adjusted according to the compensation torque. According to the control algorithm and device for the clutch torque of the double-clutch transmission and a vehicle, the accuracy of torque control can be effectively improved, and the probability of vehicle damage caused by rotating speed fluctuation and gear shifting impact in the gear shifting process is reduced.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a clutch torque control algorithm, device and vehicle of a dual-clutch gearbox. Background technique [0002] In the prior art, due to the high transmission efficiency of the dual-clutch gearbox, there is no power interruption to shift gears to ensure driving comfort, so that more and more vehicles are equipped with a dual-clutch gearbox to improve the driving experience of users. [0003] However, the power transmission part of the existing dual-clutch gearbox is a clutch, and the core control of the clutch is torque control. Usually, the clutch is controlled by using the expected torque of the clutch, and the expected torque is controlled by the speed between the actual speed and the target speed. The difference is calculated, so that the accuracy of the calculated expected torque is not high, so that the accuracy of torque control is not high. Contents of the invention [0...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): F16D48/06
CPCF16D48/06F16D2500/10406F16D2500/1107F16D2500/3067F16D2500/106F16D2500/5016F16D2500/50227F16D2500/50287F16D2500/50293F16D2500/70626
Inventor王德伟孟斌周立闵立杜强
OwnerDONGFENG MOTOR GRP