Oil level detection device, automobile, fuel tank and oil level detection method
A technology of oil level detection and oil level, which is applied in the field of vehicles, can solve the problems of increased complexity of the oil level acquisition signal algorithm, the inability to eliminate the contact resistance of the slide contact, and inaccurate oil level signals, so as to avoid the impact of contact resistance on fuel oil. The impact of the oil level signal, the effect of improving user experience and improving accuracy
Inactive Publication Date: 2018-11-09
BEIJING BORGWARD AUTOMOBILE CO LTD
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Problems solved by technology
However, its circuit design will increase the complexity of the oil level acquisition signal algorithm inside the car combination instrument. At the same time, the circuit design still cannot completely eliminate the contact resistance of the slider contact in the oil level signal acquisition calculation. The collected oil level signal is still inaccurate
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[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0027] The fuel level detection device, the vehicle, the fuel tank and the fuel level detection method according to the embodiments of the present invention will be described below with reference to the accompanying drawings.
[0028] figure 1 is a structural schematic diagram of an oil level detection device according to an embodiment of the present invention. Such as figure 1 As shown, the oil level detection device according to the embodiment of the present invention includes: an oil level sensor 100 and a detection module 2...
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The invention discloses an oil level detection device, an automobile, an oil tank and an oil level detection method. The oil level detection device comprises an oil level sensor and a detection module, wherein the oil level sensor comprises a slide rheostat and a vane contact, the slide rheostat comprises a first end and a second end, the vane contact controls the slide rheostat, and the vane contact changes along with the oil level; and the detection module is connected with the vane contact, the first end and the second end and is used for detecting first resistance between the first end and the vane contact and second resistance between the second end of the vane contact and acquiring the current oil level according to the first resistance and the second resistance. According to the oil level detection device, influences caused by contact resistance generated by the vane contact on fuel oil level signals can be avoided, accuracy of the fuel oil level signals is greatly improved, and user experience is enhanced.
Description
technical field [0001] The invention relates to the technical field of vehicles, in particular to an oil level detection device, an automobile, a fuel tank and an oil level detection method. Background technique [0002] The fuel level sensor is an important part of the car. The driver of the car knows the remaining amount of fuel in the car through the fuel level sensor in the fuel tank of the car. At present, the fuel level sensor commonly used in automobiles is a thick-film resistive type, which is equivalent to a sliding rheostat. A float is connected to the sliding piece of the sliding rheostat. The float floats on the fuel liquid surface in the fuel tank and occurs with the level of the liquid level Move up and down, so as to drive the sliding piece connected to it to slide back and forth on the thick film sliding rheostat. By collecting the resistance value or voltage value of the sliding rheostat, the remaining fuel amount in the car fuel tank can be known and displa...
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IPC IPC(8): G01F23/60
Inventor 刘关孙学龙
Owner BEIJING BORGWARD AUTOMOBILE CO LTD