Method, device and vehicle for detecting remaining fuel volume in fuel tank

Abstract

The invention discloses a detection method and apparatus for a residual oil quantity of an oil tank, and a vehicle. The detection method comprises the following steps: obtaining gradient signals of a pavement where a vehicle is disposed; if it is determined that the vehicle is on non-horizontal ground according to the gradient signals, further obtaining instantaneous oil consumption and a fuel quantity before the vehicle enters a rampway; and according to the fuel quantity before the vehicle enters the rampway and the instantaneous oil consumption, calculating an instrument fuel display value. According to the detection method for the residual oil quantity of the oil tank, the problem of inaccuracy of oil level information acquired by an oil level sensor because the vehicle is disposed on the non-horizontal ground is avoided, the accuracy of the instrument fuel display value is greatly improved, and user experience is improved.

Description

technical field [0001] The invention relates to the technical field of vehicles, and in particular, to a method, device and vehicle for detecting the remaining oil amount in a fuel tank. Background technique [0002] At present, the automobile industry is becoming more and more mature in my country. Passenger cars are now popularized in almost every family. The service system in all parts of the country has also been perfected, and the car can travel in any corner of the world. [0003] In the current mature automobile market, various companies will speed up their own research and development progress, save costs, and develop high-tech. The method adopted by most car manufacturers is the fuel resistance signal acquisition method. Fuel resistance signal acquisition method, that is, the fuel level sensor will transmit a resistance signal externally, and a pull-up resistor above the circuit is used to divide the voltage. The value will be converted into AD value, and then the...

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Problems solved by technology

[0004] However, with the development of automobiles, the shape and placement rules of fuel tanks are increasingly deviated from traditional methods. In the past, they were all three-dimensional fuel tanks, usually placed at the bottom or tail, but they were all placed vertically or horizontally in a regular manner. Sometimes, in order to speed up the research and development progress of models and save costs, when the mold opening of the car shape and the chassis structure remain unchanged, some irregular fuel tanks, when placed arbitrarily, will lead to fuel failure when the fuel display strategy remains unchanged. Inaccurate display

For example, when the shape of the fuel tank is irregular, the resistance signal transmitted by the fuel level sensor according to the actual fuel volume will produce errors, and this error will become larger and larger during the driving process of the vehicle, resulting in cumulative errors. And when the vehicle parks on a slope, refuels on a slope, replaces an instrument on a slope, accelerates rapidly, decelerates sharply, brakes sharply, and drives on a curve, the fuel resistance value of the vehicle collected by the fuel level sensor will Inaccurate, resulting in a discrepancy between the oil quantity displayed on the gauge and the actual value, which in turn leads to poor user experience

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