Fuel tank residual oil amount detection method and device, and vehicle

Abstract

The invention discloses a fuel tank residual oil amount detection method and device, and a vehicle. The detection method comprises the following steps of obtaining a slope signal of the road where the vehicle is arranged; further obtaining the current fuel oil amount and instantaneous fuel consumption if the vehicle is determined to be on a horizontal ground in dependence on the slope signal; and calculating the instrument fuel oil displaying value in dependence on the current fuel oil amount and instantaneous fuel consumption. By employing the fuel tank residual oil amount detection method, the problem that the vehicle shakes or tilts and the like, and therefore the oil level information acquired by an oil level sensor is not accurate can be avoided, the accuracy of the instrument fuel oil displaying value is greatly improved, and therefore the user experience is improved.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a detection method, device and vehicle for remaining fuel in a fuel tank. Background technique [0002] The development of the automobile industry in our country is becoming more and more mature. Almost every family now has a passenger car. The service system across the country has also been perfected. Cars can travel anywhere in the world. [0003] In the current mature automobile market, all companies will speed up their research and development progress, save costs, and develop high-tech. The methods adopted by many automobile manufacturers are 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. Through the change of the resistance value, the AD acquisition port on the instrument side can co...

AI Technical Summary

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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