Control method and device for PTO clutch of power output device
A power output and clutch technology, which is applied in the field of vehicle safety, can solve problems such as clutch wear and PTO clutch invalid combination, and achieve the effect of reducing wear
Active Publication Date: 2022-07-15
WEICHAI POWER CO LTD +1
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- Application Information
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Problems solved by technology
[0003] During the operation of the appliance, the pressure control of the engagement of the PTO clutch is usually achieved through closed-loop control. However, with the existing technology, it is easy to cause the invalid engagement of the PTO clutch due to the driver's misoperation, resulting in clutch wear
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[0052] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0053]In this application, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also no Other elements expressly listed, or which are also inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the ph...
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The present invention provides a control method and device for a PTO clutch of a power output device. The method includes: in response to a combination command, acquiring the running state of the whole vehicle; judging whether the running state of the whole vehicle satisfies the combination condition; if so, pressing a first pressure The application strategy applies pressure to the PTO clutch and detects the state of the PTO shaft; when the rotation of the PTO shaft is detected, apply pressure to the PTO clutch according to the second pressure application strategy to combine the PTO clutch; wherein, the second pressure application strategy The pressure increase rate is greater than the pressure increase rate of the first pressure application strategy; in the process of applying pressure to the clutch according to the second pressure application strategy, real-time detection of whether the speed difference change rate between the PTO shaft and the engine is abnormal; When the differential change rate is abnormal, adjust the pressure applied to the clutch so that the speed difference change rate is in a normal state. The wear of the PTO clutch can be reduced.
Description
technical field [0001] The invention relates to the technical field of vehicle safety, in particular to a control method and device for a PTO clutch of a power output device. Background technique [0002] Power takeoffs are commonly used in vehicles, such as tractors and trucks, to provide power from the vehicle's engine to machinery (eg, agricultural implements) that may be attached to or towed behind the vehicle. For example, in agricultural applications, tractors may drag implements (eg, tillers, seeders, harvesters, etc.) across fields to perform agricultural tasks. The PTO may be coupled to the vehicle's engine (eg, via a driveshaft) to power the appliance. The PTO may include a PTO clutch to couple and disengage the PTO shaft and the drive shaft. [0003] During the operation of the appliance, the closed-loop control is usually used to realize the pressure control of the PTO clutch engagement. However, with the prior art solution, the PTO clutch is easily ineffective...
Claims
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IPC IPC(8): B60K25/06A01B71/00
CPCB60K25/06A01B71/00
Inventor 郝功凯孙晓鹏卢朋珍胡永慧郭帅
Owner WEICHAI POWER CO LTD