Engine rotating speed acquisition algorithm
A technology of engine speed and algorithm, which is applied in the direction of engine control, machine/engine, governor, etc., can solve the problems that the accuracy cannot be guaranteed, and achieve the effects of accurate and reliable processing, improved accuracy, and reasonable design
Inactive Publication Date: 2019-11-22
HANTENG AUTOMOBILE CO LTD
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Problems solved by technology
The accuracy of traditional engine speed collection cannot be guaranteed
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[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The specific embodiments described here are only used to explain the present invention, not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0040] see Figure 1-4 , the present invention provides a kind of algorithm of engine speed acquisition, comprises the following steps:
[0041] S1: Acquisition of engine speed, which is collected by the bottom layer and uploaded to the model after the calculated value;
[0042] S2: The value collected at the bottom layer is filtered to...
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The invention discloses an engine rotating speed acquisition algorithm. The engine rotating speed acquisition algorithm comprises the following steps that S1, the engine rotating speed is acquired; S2, numerical values acquired from the bottom layer undergo filtering processing to obtain one engine rotating speed value; S3, after the engine rotating speed value is obtained, the acquired value subjected to filtering processing and the rotating speed value obtained through CAN communication are selectively used through a standard quantitative LV_ECU_CAN_CONFIG, and if 1 is set, communication with an ECU is achieved; S4, the engine rotating speed uses the rotating speed value acquired through the CAN communication, and is 0 is set, the engine rotating speed uses the engine rotating speed value after the numerical values acquired from the bottom layer undergo filtering processing; and S5, the filtering processing algorithm is carried out in two sections. The engine rotating speed acquisition algorithm is reasonable in design and accurate and reliable in processing. The engine rotating speed acquisition algorithm comprises filtering processing on the bottom layer acquired numerical values, and a final value selection is made from the CAN communication value and the bottom layer acquired value subjected to filtering processing through the adjustment of the standard quantitative, so that the rotating speed acquisition precision is improved.
Description
technical field [0001] The invention belongs to the technical field of engine speed, and in particular relates to an algorithm for collecting engine speed. Background technique [0002] Usually, the engine speed sensor is installed on the engine cylinder block near the flywheel, or on the edge of the crankshaft pulley or at the rear oil seal of the crankshaft. Crankshaft position sensor, also known as engine speed and crank angle sensor, its function is to collect crankshaft rotation angle and engine speed signals, and input them into the engine control unit (ECU). [0003] The rotational speed is one of the important parameters of the engine, and the collection and processing of the rotational speed value is very important to the normal operation of the engine and even the car. The accuracy of the traditional acquisition of engine speed cannot be guaranteed. Contents of the invention [0004] The purpose of the present invention is to provide an algorithm for engine spe...
Claims
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Login to View More IPC IPC(8): F02D29/02G01P3/00
CPCF02D31/001G01P3/00
Inventor 娄孝超
Owner HANTENG AUTOMOBILE CO LTD