Control system for automatic start-stop of engine

A control system, start-stop control technology, applied in the direction of engine start, engine motor start, engine components, etc., can solve the problem of not only retaining the automatic start function or automatic stop function, affecting vehicle emission, engine reliability, vehicle comfort, Issues such as the safety pressure of gas storage cylinders are not considered

Inactive Publication Date: 2017-07-11
WEICHAI POWER CO LTD
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Problems solved by technology

[0004] However, it does not take into account the safety pressure of the gas cylinder, the SCR after-treatment system, the idling time of the engine after high-speed operation, and the status of the air conditioner switch. In the process of frequent start and stop, there will be certain safety factors, which...

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  • Control system for automatic start-stop of engine
  • Control system for automatic start-stop of engine

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] According to the background technology, the existing automatic start-stop technology does not take into account the safety pressure of the gas storage cylinder, the SCR after-treatment system, the idling maintenance time of the engine after high-speed operation, and the switch status of the air conditioner. Safety factors affect issues such as vehicle emissions, engine reliability and vehicle comfort.

[0036] Moreover, closing or disconnecting the auto...

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Abstract

The invention provides a control system for automatic start-stop of an engine. The control system comprises a start-stop control module, a start enabling switch, a stop enabling switch and an electronic control module. According to the control system provided by the invention, factors such as vehicle safety, emission, engine reliability and vehicle comfort level are sufficiently taken into consideration according to gas cylinder pressure parameters, storage battery electric quantity parameters, SCR urea box thawed state parameters, SCR catalyst upstream temperature parameters, air-condition state parameters and engine idle-speed heat dissipation time parameters, so that the problems such as potential safety hazards of a vehicle, engine service life attenuation and discharge efficiency decrease as a result of frequency start and stop are solved; and moreover, according to the control system, an automatic start function and an automatic stop function can coexist and also can individually exist.

Description

technical field [0001] The invention relates to the technical field of engine control, and more specifically, relates to a control system for automatic engine start and stop. Background technique [0002] With the continuous development of society, automobiles have been widely used in people's daily life, but it is found through investigation that in the running state of urban vehicles, the engine is idle for more than 30% of the time, which increases the consumption of fuel or gas. At the same time, a large amount of exhaust pollutants are also produced. [0003] In order to solve the above problems, those skilled in the art have realized the engine start-stop technology according to the automatic start-stop switch, hand brake, foot brake, clutch state, vehicle speed, gear position and throttle opening. [0004] However, it does not take into account the safety pressure of the gas cylinder, the SCR after-treatment system, the idling time of the engine after high-speed oper...

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Application Information

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IPC IPC(8): F02N11/08
CPCF02N11/0803F02N11/0833Y02T10/40
Inventor 王德军潘凤文娄丙民徐守军李可敬
Owner WEICHAI POWER CO LTD
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