Idling control method for engine of automobile
An automobile engine and idle speed control technology, applied in engine control, machine/engine, mechanical equipment, etc., can solve problems such as high fuel consumption, fuel waste, and complicated control process, so as to reduce fuel consumption, improve intelligence, and realize cost low effect
Active Publication Date: 2012-01-11
CHERY AUTOMOBILE CO LTD
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Problems solved by technology
When the car is driving on urban road conditions, due to the influence of traffic lights, the engine will frequently be in idling mode. At this time, the fuel consumption is still unavoidable, and the fuel consumption is high, which not only causes a lot of waste of fuel, but also increases the use of the car owner. a certain economic burden
Although many use hybrid technology to solve the problem of fuel consumption at idle speed, the cost of hybrid technology is too high, the control process is complicated, and the technology is not yet mature.
Method used
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[0014] A kind of automobile engine idle speed control method of the present invention, such as figure 1 Shown is the process block diagram of the control method. The control process of this control method is:
[0015] Step 1: The engine control unit (ECU) judges whether the engine water temperature has reached a certain temperature value. If so, the engine control unit starts to judge whether the engine is in the idling condition; if not, it does not need to judge whether the engine is in the idling condition; the engine control unit After judging that the engine water temperature has reached a certain temperature value, the engine control unit starts to judge whether the engine is in the idling condition, if yes, proceed to step 2, the engine control unit controls the engine to reduce the speed; if not, maintain the normal idle speed;
[0016] Step 2: The engine water temperature reaches the certain temperature value and is in the idling condition, that is, the engine meets ...
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The invention discloses an idling control method for an engine of an automobile, which comprises the following steps that: signals of a water temperature sensor and a wheel speed sensor are received through an engine control unit, the engine control unit controls an engine to reduce the idling rotating speed after judging that the engine reaches the idling rotating speed reduction condition, and finally, the engine control unit receives clutch switch signals or gear signals and judges whether the condition of recovering the normal idling rotating speed is met or not. The idling control method for the engine of the automobile adopts the technical scheme, the engine normally works at the minimum rotating speed under the idling work condition through reducing the rotating speed of the engine under the idling work station, the fuel consumption and the emission are reduced, the goal can be realized through the existing automobile model technology and the equipment without the addition of new equipment, the technology is stable, the realization cost is low, the intelligent performance of automobiles is improved, and more customers can be attracted.
Description
technical field [0001] The invention relates to a method for controlling an automobile engine, in particular, the invention relates to a method for controlling an idle speed of an automobile engine. Background technique [0002] As the number of cars increases, the speed of fuel consumption continues to increase, and the environmental pollution and greenhouse gas emissions of automobile exhaust are becoming more and more serious. Humans have invented many technologies to reduce exhaust emissions and fuel consumption, such as new engine technologies, reducing body weight, Use new materials, etc. When the car is driving on urban road conditions, due to the influence of traffic lights, the engine will frequently be in idling mode. At this time, the fuel consumption is still unavoidable, and the fuel consumption is high, which not only causes a lot of waste of fuel, but also increases the use of the car owner. a certain economic burden. Although many use hybrid technology to s...
Claims
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Inventor 袁中纪云伟刘新宇
Owner CHERY AUTOMOBILE CO LTD