Automobile low-oil-quantity output power limiting system and control method thereof

A power limiting and output power technology, applied in the field of automobile engine output power limiting system and its control, can solve the problems of fuel waste and excessive change rate of engine output power, so as to strengthen safe driving protection, reduce automobile fuel consumption, and increase driving The effect of mileage

CN102748146AActive Publication Date: 2012-10-24ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2012-10-24

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Abstract

The invention relates to an automobile low-oil-quantity output power limiting system and a control method thereof. According to the system and the control method thereof, the problems of suddenly oversized change amplitude of output power of an engine and waste of a large amount of fuel oil existing in the prior can be solved well. The key points of the technical scheme provided by the invention are that the automobile low-oil-quantity output power limiting system comprises an automobile communication bus, an oil tank liquid level sensor, an accelerator opening sensor, a power limiting system master control chip and a power limiting unit, wherein both the oil tank liquid level sensor and the accelerator opening sensor are electrically connected with the automobile communication bus; and both the power limiting system master control chip and the power limiting unit are electrically connected with the automobile communication bus. According to the system and the control method thereof, the automobile oil consumption can be reduced and the automobile running mileage can be increased by limiting the maximum output power of the engine or limiting the variation rate of the output power of the engine.
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Description

technical field

[0001] The invention relates to a vehicle engine control system and a control method thereof, in particular to a fuel-saving automobile engine output power limiting system and a control method thereof. Background technique

[0002] At present, the continuous increase of automobiles consumes huge energy and also brings serious environmental pollution. Fuel saving has become an indispensable requirement for people for automobiles. At present, the known fuel saving devices or systems generally have complex processes, Difficult to process, high production cost; difficult to install, need to disassemble or change the engine; many mechanical moving parts, easy to wear and age, short service life; low degree of intelligence, etc., and people have more and more fuel-efficient requirements for cars The higher it is, especially when the car is low in fuel, it is a common requirement for drivers to drive as long as possible. Therefore, a car that can save fuel under low...

Examples

Embodiment 1

[0035] A low fuel output power limiting system for automobiles (see attached figure 1 ), the present embodiment is powered by a vehicle power supply, and is suitable for an automobile using an electronic throttle engine, including an automobile communication bus 12, a fuel tank liquid level sensor 11 and a throttle opening sensor 10, and the fuel tank liquid level sensor 11 and the throttle opening sensor 10 are both Electrically connected with the automobile communication bus 12, the automobile low fuel output power limiting system also includes a power limiting system main control chip 1, a power limiting unit 9, a cruise control device 8, an automatic control button 2, a manual control button 3 and an alarm indication The main control chip 1 of the power limiting system and the power limiting unit 9 are all electrically connected to the automobile communication bus 12, wherein the alarm indicator includes a separate LED alarm 4 and a voice alarm 5, the LED alarm 4 and the vo...

Embodiment 2

[0038] This embodiment is basically the same as Embodiment 1, the difference is that this embodiment is applicable to a motor vehicle with a mechanical throttle engine, and the power limiting unit 7 in this embodiment is an electronic throttle controller. When this embodiment is working, the fuel injection quantity is directly limited by the electronic accelerator controller to achieve the purpose of limiting power output.

Embodiment 3

[0040] A control method for limiting the output power of automobiles with low oil quantity (see attached Figure 4 ), the control method for limiting the output power of the vehicle with low fuel volume is applicable to the system for limiting the output power of the vehicle with low fuel volume according to the present invention. Firstly, the sub-step S001 system initialization is performed, and the vehicle is calibrated in advance according to the situation of the vehicle. Determine the calibration value of fuel volume and power calibration value, and calculate the calibration value of throttle opening from the power calibration value, and then input it to the main control chip 1 of the power limiting system. The control method of the low fuel volume output power limit of the car includes the following steps :

[0041] Step 1: Execute sub-step S002, that is, the main control chip 1 of the power limiting system receives the signal of the throttle opening sensor 10;

[0042] ...