Passenger car engine idling control method and system
An engine idling and control method technology, applied in engine control, machine/engine, electrical control, etc., can solve the problems of inaccurate idling adjustment, insufficient idling boost, and high idling boost, so as to avoid the stall of the bus, prevent the battery from running out of power, The effect of reducing fuel consumption
Inactive Publication Date: 2015-09-09
XIAMEN KING LONG UNITED AUTOMOTIVE IND CO LTD
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Problems solved by technology
[0004] The invention provides a method and system for controlling the idle speed of a passenger car engine, with the purpose of solving the problems of inaccurate idle speed adjustment in the existing idle speed boosting method of passenger cars, resulting in too high idle speed boost, increased fuel consumption, or insufficient idle speed boost, and insufficient power generation.
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[0026] The specific implementation manners of the present invention are described below with reference to the accompanying drawings.
[0027] Such as figure 1 with figure 2 A passenger car engine idle speed control method and system, the control system includes a generator 1, an instrument bus system 2, a microprocessor 3, a storage battery 4, a CAN bus 5, an engine ECU 6 and an engine 7. The instrument bus system 2 is connected with the storage battery 4 , the generator 1 , the microprocessor 3 , and each electrical equipment 8 ; the microprocessor 3 is connected with the engine ECU 6 through the CAN bus 5 ; the engine ECU 6 is connected with the engine 7 . Among them, the instrument bus system 2 detects the electrical system voltage and current of the passenger car, and obtains the required data such as the generated voltage and generated current of the generator 1; the instrument bus system 2 sends the obtained data to the microprocessor 3 for analysis; after the analysis...
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The invention discloses a passenger car engine idling control method and system and relates to the field of vehicle-mounted equipment. Upon an idling state of an engine, generating power or generating currents of a generator can be detected in real time by an instrument bus system; a comparison between the generating voltage or the generating currents and charging voltage for a storage battery or required total currents by each electric equipment via a micro-processor to determine whether idling rotating speed of the engine is excessive high or excessive low; an order is transmitted to an engine ECU by the micro-processor via a CAN bus; and relative adjustments are made to the engine idling rotating speed by the engine ECU. The beneficial effects of the passenger car engine idling control method and system are that real-time adjustments can be made to engine idling rotating speed to ensure the engine idling speed at a proper state with guaranteeing passenger car overall power supply volume; and the passenger car engine idling control method and system is advantaged by real-time adjustments to engine idling rotating speed, avoidance of passenger car flameout and fuel consumption reduction.
Description
technical field [0001] The invention relates to the field of on-board equipment, more specifically a method and system for controlling the idle speed of a passenger car engine. Background technique [0002] The idling state refers to a working state when the engine is idling. In real life, if the engine idle speed is too low, the car will stall when it temporarily stops (such as stopping at a red light, turning a car, and decelerating). However, if the engine idle speed is too high, it will increase the fuel consumption, increase the operating temperature of the engine, accelerate the wear of the engine, and there will be a loud impact sound when changing gears, which will cause great damage to the car. Therefore, the idle speed must be adjusted to an appropriate range in order to ensure the smooth running of the car and prolong the working life of the engine. [0003] Due to the characteristics of long parking time and high number of stops, the engine idling ratio of ...
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Inventor 李伟周小辉
Owner XIAMEN KING LONG UNITED AUTOMOTIVE IND CO LTD