Engine brake control system and vehicle
A brake control and engine technology, applied in the field of vehicles, can solve the problems of the limited maximum braking power of the engine and cannot meet the needs of users, and achieve the effect of increasing the power of accessories and improving the braking power
Active Publication Date: 2022-06-28
WEICHAI POWER CO LTD
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Problems solved by technology
[0004] However, in the prior art, based on the hardware structure of the engine itself, the maximum braking power that the engine can achieve is limited, which may not be able to meet more needs of users. Therefore, there is an urgent need for a way to increase the braking power of the engine
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[0031] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0032] In the prior art, the maximum braking power that the engine can achieve is determined by the hardware structure of the engine itself. However, in the prior art, based on the hardware structure of the engine itself, the maximum braking power that the engine can achieve is limited, which may not meet more needs of us...
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The application provides an engine braking control system and a vehicle. The system includes: a controller, an air compressor, a high-pressure air storage tank and a normal pressure air storage tank. The air compressor is connected to the engine, and the air compressor passes through the first pipeline It is connected with the high-pressure gas storage tank, the first valve is set on the first pipeline, the air compressor is connected with the normal pressure gas storage tank through the second pipeline, and the second valve is set on the second pipeline; the controller is used to determine the engine is In the braking state, if it is determined that the engine speed at the current moment is greater than the speed at the previous moment, and the speed at the current moment is less than the first speed threshold, the first valve is controlled to open and the second valve is closed, so that the air compressor is driven to high pressure. Inflate the air storage tank to increase the braking power of the engine; the controller is also used to control the first valve to close and the second valve to open when the engine is determined to be in a non-braking state, so that the air compressor Pump up the gas tank. Increased engine braking power.
Description
technical field [0001] The present application relates to the technical field of vehicles, and in particular, to an engine brake control system and a vehicle. Background technique [0002] In recent years, vehicles have become the preferred way for users to travel. The vehicle is provided with an engine, wherein, when the engine is in a braking state, the braking power of the engine is an important factor affecting the driving safety of the vehicle. Also, the greater the braking power of the engine, the more beneficial it is for the user. [0003] In the prior art, the maximum braking power that the engine can achieve is determined by the hardware structure of the engine itself. [0004] However, in the prior art, based on the hardware structure of the engine itself, the maximum braking power that the engine can achieve is limited, which may not meet more needs of users. Therefore, there is an urgent need for a method that can increase the braking power of the engine. SU...
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IPC IPC(8): F02D41/00F02D23/00F02B33/44
CPCF02D41/0005F02D41/0007F02B33/44Y02T10/12
Inventor 杨立云史美丽许雪利
Owner WEICHAI POWER CO LTD