Method and device for setting idle speed of a thermal engine
A heat engine and idling technology, applied in mechanical equipment, combustion engines, engine control, etc., can solve problems affecting the time node of vehicle development, and achieve the effect of improving the rationality and efficiency of vehicle development
Active Publication Date: 2022-07-05
SAIC MOTOR
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Problems solved by technology
In addition, since the idle speed value of the heat engine has a great influence on the calibration of the whole vehicle, the idle speed value is directly related to the acceleration, deceleration, throttle opening and ignition angle setting of the vehicle during driving. If the previously set idle speed value fails, Then the calibration work related to idle speed also needs to be restarted, which may affect the vehicle development time node
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[0054] 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.
[0055] In real life, the idle speed of the engine has a great influence on the normal operation of the vehicle. Specifically, if the idle speed of the engine is too low, it may cause the vehicle to stall when it is temporarily stopped. If the idle speed of the engine is too high, the It will increase the consumption of fu...
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The present application discloses a method and device for setting the idle speed of a heat engine. The method includes: firstly calculating an initial idle speed matrix column of a target heat engine, and then obtaining an initial speed torque matrix of the target heat engine according to the initial idle speed matrix column, And further obtain the combustion heat of the target heat engine, then, according to the obtained initial idle speed matrix, speed torque matrix and combustion characteristics, simulate the vibration data of the powertrain of the target heat engine and the vibration data of the vehicle parts, and finally , the idle speed value of the target heat engine can be set according to the simulated vibration data of the powertrain of the target heat engine and the vibration data of the vehicle parts. It can be seen that when setting the idle speed value of the target heat engine, the present application takes into account the vibration data of the powertrain of the target heat engine and the vibration data of the whole vehicle parts, so that the set idle speed value can be prevented from invalidating, and the idle speed setting can be improved. The plausibility of the results and the efficiency of the vehicle development.
Description
technical field [0001] The present application relates to the technical field of engines, and in particular, to a method and device for setting the idle speed of a thermal engine. Background technique [0002] The idle speed state refers to a working state when the engine is idling. In real life, if the engine idle speed is too low, the vehicle will stall when it is temporarily stopped, and if the engine idle speed is too high, it will increase the fuel consumption, making The increase of the working temperature of the engine will accelerate the wear of the engine and cause damage to the vehicle. Therefore, it is necessary to set the idle speed value of the engine reasonably, especially for the engine with rising water temperature (ie, a hot engine), it is necessary to pre-set a suitable engine idle speed. value, in order to ensure the smooth operation of the vehicle and prolong the working life of the engine. [0003] At present, for the setting method of the idling speed ...
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IPC IPC(8): F02D41/08F02D29/02
CPCF02D41/08F02D29/02F02D2200/1002F02D2200/50F02D2200/02Y02T90/00
Inventor 傅军亮尉爽
Owner SAIC MOTOR