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TV valve control method and device and storage medium

A valve control and vehicle technology, which is applied in the field of vehicles, can solve the problems that the TV valve cannot be opened in time, affecting the power performance of the excavator, and achieve the effect of ensuring power performance, short time consumption, and ensuring temperature requirements.

Pending Publication Date: 2022-01-04
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a TV valve control method, device and storage medium to solve the problem of the excavator suddenly entering a heavy load condition from a normal load condition when the excavator is in the driving regeneration or thermal management mode in the related art During operation, the TV valve cannot be opened in time, which will affect the power of the excavator during operation

Method used

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  • TV valve control method and device and storage medium
  • TV valve control method and device and storage medium
  • TV valve control method and device and storage medium

Examples

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Effect test

Embodiment 2

[0066] This embodiment provides a TV valve control method. This embodiment is embodied on the basis of the above embodiments. The TV valve control method includes the following steps.

[0067] S210: Determine that the vehicle is in thermal management mode or regeneration mode.

[0068] S211: Control the opening of the TV valve based on the vehicle working condition. Wherein, controlling the opening degree of the TV valve based on the vehicle operating conditions includes the following steps S220-S250.

[0069] S220: Obtain the operating parameters of the vehicle.

[0070] S230: Determine whether the vehicle is in a heavy load condition based on the operating parameters of the vehicle. If the vehicle is in a heavy load condition, execute S240; if the vehicle is not in a heavy load condition, execute S250.

[0071] S240: Adjust the opening degree of the TV valve in an open loop, and open the TV valve to the maximum opening degree, and repeat step S220.

[0072] S250: Close-l...

Embodiment 3

[0084] image 3 A structural diagram of a TV valve control device provided by Embodiment 3 of the present invention, the TV valve control device can execute the TV valve control method described in the above embodiment, specifically, the TV valve control device includes a vehicle working mode determination module 310 , an operation parameter acquisition module 320 , a heavy load condition judgment module 330 and an open-loop adjustment module 340 .

[0085]Wherein, the vehicle working mode determination module 310 is used to determine that the vehicle is in a thermal management mode or a regeneration mode. Specifically, the vehicle working mode determination module 310 may include an SCR temperature acquisition unit and a DPF temperature acquisition unit, the SCR temperature acquisition unit is used to acquire the temperature of the SCR to determine whether the vehicle is in thermal management mode, and the DPF temperature acquisition unit is used to acquire the temperature of...

Embodiment 4

[0092] Embodiment 4 of the present invention also provides a storage medium on which a computer program is stored. When the program is executed by the traffic controller, the TV valve control method as described in the above-mentioned embodiments of the present invention is realized.

[0093] Certainly, a storage medium containing computer-executable instructions provided by the embodiments of the present invention, the computer-executable instructions are not limited to the operations in the TV valve control method described above, and the TV valve provided by the embodiments of the present invention can also be executed. Relevant operations in the valve control method, and have corresponding functions and beneficial effects.

[0094] Through the above description about the implementation mode, those skilled in the art can clearly understand that the present invention can be realized by means of software and necessary general-purpose hardware, and of course it can also be real...

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Abstract

The invention relates to the technical field of vehicles, and particularly discloses a TV valve control method and device and a storage medium. In the TV valve control method, when a vehicle is in a heat management mode or a regeneration mode, whether the vehicle is in a large-load working condition or not is judged based on operation parameters of the vehicle; and if the vehicle is in the large-load working condition at the same time, the opening degree adjusting mode of the TV valve is adjusted from closed-loop control to open-loop control, and the TV valve is opened to the maximum opening degree, so that the power performance of the vehicle can be guaranteed, the time consumed for opening the TV valve to the maximum opening degree is short, and the temperature requirement for tail gas aftertreatment can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a TV valve control method, device and storage medium. Background technique [0002] At present, most engineering vehicles are equipped with exhaust gas after-treatment devices, through which the exhaust gas is processed to meet the requirements of emission regulations. Exhaust gas after-treatment devices such as SCR (Selective Catalytic Reduction), DPF (Diesel Particulate Filter), DOC (Diesel Oxidation Catalyst), etc. In actual use, in order to achieve DPF regeneration, extend the DPF regeneration cycle, and prevent SCR crystallization, it is necessary to manage the temperature of the vehicle's post-processing during operation. [0003] When the excavator is in the driving regeneration or thermal management mode, the TV valve (intake brake valve) needs to be suppressed to increase the temperature of the post-processing. The TV valve is usually controlled by a closed-loop contro...

Claims

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Application Information

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IPC IPC(8): F02D41/00F02D41/02F02D9/02
CPCF02D41/0002F02D41/029F02D41/024F02D9/02F02D2041/0022
Inventor 迟建伟王兴元尹东东李士帅
Owner WEICHAI POWER CO LTD
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