Heavy vehicle weight real-time identification method based on CAN information and function principle

A technology of functional principles and identification methods, which is applied to vehicle parts, transportation and packaging, circuits or fluid pipelines, etc., can solve problems such as complex calculations, and achieve high identification accuracy, strong applicability, and easy real-time effects
CN103264669BInactive Publication Date: 2015-04-15JILIN UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
JILIN UNIV
Publication Date
2015-04-15
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a heavy vehicle weight real-time identification method based on CAN information and a function principle. According to the method, when a vehicle runs, vehicle wheel speed, engine rotating speed, engine practical torque percentage, a gear position, accelerating pedal opening degree, a clutch pedal signal and a braking pedal signal are acquired through a vehicle CAN bus; engine torque, accelerated speed and a rotating weight conversion coefficient are obtained by computing; a vehicle longitudinal kinetic equation based on the function principle is established, on the basis of the kinetic equation, the work done by equivalent outer force generated by driving force and air resistance is regarded as system input quantity, the work done by the equivalent accelerated speed generated by the sum of rolling resistance, slope resistance and acceleration resistance is regarded as an observable data vector, and heavy vehicle weight is estimated in real time through a recursive least-squares method with which a forgetting factor is selected according to the feature of the vehicle weight.
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Description

Technical field

[0001] The invention relates to a method for real-time identification of the quality of heavy vehicles, in particular to a method for real-time identification of the quality of heavy vehicles based on CAN information and functional principles. Background technique

[0002] For the dynamic measurement method of heavy vehicle quality, the most common is the dynamic truck scale, but the weighing platform cannot be installed on the vehicle body, and it is not convenient to obtain the actual vehicle quality online in real time.

[0003] Parameter estimation is an indirect measurement method to obtain the quality of heavy vehicles. The required parameter information is measured by the sensors installed on the heavy-duty vehicle, and a certain algorithm is used to obtain the estimation result of the vehicle quality. This method can obtain the quality estimation result online in real time, and the accuracy of the estimation result can be improved by improving the algorithm...

Claims

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