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Coolant level detection method, device and vehicle

A detection method and coolant technology, which is applied in the field of vehicles, can solve problems such as inaccurate detection of coolant liquid levels, and achieve the effects of avoiding inaccurate detection, reducing false alarms, and ensuring accuracy

Active Publication Date: 2021-06-18
BEIQI FOTON MOTOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of this disclosure is to provide a coolant level detection method, device and vehicle to solve the problem of inaccurate coolant level detection caused by the attachment of the liquid level probe in the related art

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  • Coolant level detection method, device and vehicle
  • Coolant level detection method, device and vehicle
  • Coolant level detection method, device and vehicle

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Embodiment Construction

[0064] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0065] First, the case where the liquid level sensor in the present disclosure is installed in the coolant pot will be described. refer to figure 1 The liquid level sensor is installed on the side wall of the coolant pot 13, and the bottom end of the liquid level sensor probe 12 is immersed in the coolant 14 when the coolant 14 is sufficient. The PIN pin 11 of the liquid level sensor is electrically connected to the liquid level detection circuit, so the liquid level of the coolant can be known through the output voltage of the liquid level detection circuit.

[0066] The liquid level detection circuit of the present disclosure is as figure 2 shown, the i...

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Abstract

The disclosure relates to a coolant level detection method, device and vehicle, so as to avoid inaccurate detection due to attachments on the surface of the liquid level probe and ensure the accuracy of coolant level detection. The coolant liquid level detection method provided in the present disclosure includes: obtaining the first output voltage of the liquid level detection circuit when the liquid level probe is at the first liquid level; when the first output voltage reaches the warning output voltage, rotating the liquid level probe to the first liquid level Two liquid levels, wherein the second liquid level is lower than the first liquid level; obtain the second output voltage of the liquid level detection circuit when the liquid level probe is at the second liquid level; determine the current voltage between the first output voltage and the second output voltage Voltage difference; obtain the standard voltage difference, where the standard voltage difference is the voltage difference output by the standard liquid level detection circuit when the standard liquid level probe is at the first liquid level and the second liquid level; according to the current voltage difference and The standard voltage difference determines the result of the coolant level detection.

Description

technical field [0001] The present disclosure relates to the technical field of vehicles, and in particular, to a method and device for detecting a coolant level, and a vehicle. Background technique [0002] In order to ensure the normal operation of equipment with engines such as automobiles and generators, coolant is indispensable. It circulates in the engine cooling system to take away the excess heat generated by the engine so that the engine can operate at normal operating temperature. run. When the coolant is insufficient, the engine water temperature will be too high, which will cause damage to the engine parts. Therefore, in order to ensure the normal operation of the vehicle, it is necessary to monitor the liquid level of the coolant. [0003] In related technologies, the liquid level of the coolant is mainly monitored by setting a liquid level sensor, and a liquid level alarm point is set. If the liquid level detected by the liquid level sensor is lower than the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F23/24
CPCG01F23/24
Inventor 刘婷周广东郝振宇
Owner BEIQI FOTON MOTOR CO LTD
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